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EP3235388B2 - Device for applying a glue track to a covering strip of a rod-shaped product of the tobacco processing industry - Google Patents

Device for applying a glue track to a covering strip of a rod-shaped product of the tobacco processing industry Download PDF

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Publication number
EP3235388B2
EP3235388B2 EP17166539.1A EP17166539A EP3235388B2 EP 3235388 B2 EP3235388 B2 EP 3235388B2 EP 17166539 A EP17166539 A EP 17166539A EP 3235388 B2 EP3235388 B2 EP 3235388B2
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EP
European Patent Office
Prior art keywords
roller
glue
stripping
stripping member
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17166539.1A
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German (de)
French (fr)
Other versions
EP3235388A1 (en
EP3235388B1 (en
Inventor
Reiko HÜSER
Ralf Soltow
Dietmar Janz
Clemens Schmick
Nadine Leichsenring
Mathias Schafforz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Koerber Technologies GmbH
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Publication date
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Application filed by Koerber Technologies GmbH filed Critical Koerber Technologies GmbH
Priority to PL17166539.1T priority Critical patent/PL3235388T5/en
Publication of EP3235388A1 publication Critical patent/EP3235388A1/en
Publication of EP3235388B1 publication Critical patent/EP3235388B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/24—Pasting the seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0817—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for removing partially liquid or other fluent material from the roller, e.g. scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/16—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work
    • B05C1/165—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work using a roller or other rotating member which contacts the work along a generating line

Definitions

  • the invention relates to a device for applying a line of glue to a wrapping strip of a rod-shaped product of the tobacco processing industry with the features of the preamble of claim 1.
  • the wrapping strip is generally used to fix the shape of the rod-shaped products, which can be, for example, preliminary products such as filter rods or tobacco, or also finished products such as cigarettes, cigarillos, with and without filters.
  • the wrapping strip is first diverted and placed on an endless conveyor belt in a continuous production process.
  • a filter material made of loose filter material fibers, filter segments or a strand of tobacco fibers that have not yet been fixed is then placed on the wrapping strip.
  • the wrapping strip is then guided with the strand lying on top through a shaping section in which the wrapping strip is folded up at the side of the strand and a thin line of glue is applied to one edge.
  • the wrapping strip is then folded further around the strand until the edges of the wrapping strip overlap.
  • the edges of the wrapping strip are then glued together by applying a small pressure force and/or thermal energy via the glue seam, so that the strand is then fixed in shape in cross-section by the wrapping strip.
  • the glue line can also be applied in the form of glue dots at a certain distance apart, which is the case, for example, when the filter segments adhere when glue is applied underneath.
  • the glue dots and the tow material are applied in the middle of the wrapping strip at a point well before the wrapping strip is folded over, and serve to pre-fix the filter segments to the wrapping strip.
  • the use of glue dots is a special case; the use of a glue line is normal for both monofilters (tow) and multifilters (segments).
  • a nozzle with a round opening cross-section with a diameter of e.g. 1.6 mm is provided, through which the glue is continuously applied, e.g. with a gear pump, in a volume specified by the latter.
  • the volume of glue applied can be controlled, for example, by controlling the speed of the gear pump.
  • a strand speed of more than 600 m/min such as 700 m/min or more, have already been realized, and it cannot be ruled out that the strand speed will be increased even further in order to reduce manufacturing costs.
  • a disadvantage of the solution described above is that the glue emerges from the nozzle unevenly across the cross-section due to friction on the inner wall of the nozzle. As a result of this and due to the predominant laminar flow, the glue exit speed is significantly higher in the middle of the nozzle opening than in the edge section of the nozzle opening and has a parabolic shape across the cross-section. Since a certain minimum amount of glue must be applied across the entire width of the glue track to create a glue track of a certain width, and the glue exit speed in the middle of the nozzle opening is inevitably higher than in the edge zone due to the problem described above, the glue is applied in an excessive amount in the middle of the nozzle opening compared to the amount of glue actually required per area.
  • the time in which the wrapping strip is guided past the edge sections of the nozzle opening that are parallel to the transport direction is significantly shorter than the time in which the wrapping strip is guided past the middle section of the outlet opening. Both circumstances result in significantly more glue being applied in the middle of the glue line than in the edge sections. In principle, however, it is desirable to apply the glue as evenly as possible for a glue line with a high adhesive strength, whereby a specified minimum amount of glue should not be undercut.
  • glue penetration Due to the increased speed of the glue discharge and thus also the amount of glue in the middle of the nozzle's outlet opening, a larger proportion of the glue passes through the porous wrapping strip in the middle of the outlet opening without contributing to the bonding of the edges of the wrapping strip. This effect is also known as glue penetration.
  • the glue penetration depends on the porosity of the wrapping strip and increases with it. In addition to an undesirable possible change in the taste of the products, glue penetration leads to undesirable contamination of the entire device or system and the subsequent products. Glue penetration further reduces the adhesive strength in addition to the reduction in the adhesive strength due to the different distribution.
  • the filter material Since the filter material is also strongly compressed during strand production and is only stabilised in shape by the drying of the applied acetate, the filter material still exerts a relatively high restoring force at the time of bonding. For this reason, the wrapping strips a hot glue seam with a high, immediately effective adhesive strength is applied.
  • the bonding of the edges can optionally be stabilized by a second cold glue seam, also known as a support seam, running parallel to the hot glue seam.
  • a second cold glue seam also known as a support seam, running parallel to the hot glue seam.
  • the wrapping strip In cigarette machines, the wrapping strip is guided past a heating bar with as little pressure as possible to harden the cold glue seam, while in filter machines, only the hot glue seam is usually hardened by a cooling bar during the production process.
  • the optional cold glue seam provided in the filter machine hardens without the addition of thermal energy. In principle, the excess glue can have a detrimental effect on both the hardening process and the guidance of the wrapping strip itself.
  • the cold glue line and the hot glue line are applied parallel to a very narrow edge section of the filter's wrapping strip. Due to the very narrow edge strip, the glue lines must be applied with as little deviation in shape as possible from a given course and a given width.
  • EP 1 002 468 A2 It is known to apply the glue in the form of a foam, which is formed by adding gas bubbles, in particular inert gas or air bubbles, to the liquid glue.
  • the invention is based on the object of providing a generic device with which it is possible to apply a line of glue to a wrapping strip with a very high degree of accuracy, the greatest possible adhesive strength and, at the same time, the least possible contamination of the wrapping strip and the device or the environment.
  • a stripping part directed towards the roller is provided between the nozzle and the wrapping strip in the direction of rotation of the roller, which stripping part has a defined distance from the roller.
  • the advantage of the proposed solution is that the glue applied by the nozzle to the roller is formed by the stripping part arranged at the defined distance into a glue track with a defined thickness, which corresponds to the defined distance of the stripping part from the roller. It is important for the function of the stripping part that the stripping part is arranged in the direction of rotation between the nozzle and the wrapping strip, so that the glue is first applied by the nozzle to the roller and then the desired glue track is formed from the amount of glue applied by the stripping part during the further rotation of the roller.
  • the sole function of the stripping part is to shape the glue track on the roller, so that the glue track can be produced on the roller with a very high degree of shape accuracy and in particular a very high degree of thickness accuracy by appropriately shaping the stripping part and in particular its stripping edge and appropriately positioning the stripping part to the roller and finally applied to the wrapping strip. It is particularly advantageous that the stripping part can be positioned and aligned independently of the nozzle and the application location of the glue line on the wrapping strip, so that the shape of the glue line also occurs independently of the application of the glue to the roller and independently of the application of the glue line to the wrapping strip.
  • the stripping part being independent of the nozzle and the independent shaping of the glue line that this enables.
  • the shape of the glue line can occur as close as possible to the application of the glue line on the wrapping strip, regardless of the position of the nozzle, thanks to the separate stripping part.
  • a further advantage of the invention is that if the stripping part is worn and the glue line no longer corresponds to the required quality, it is possible to replace the stripping part as an individual part. If a glue line with a different geometry is to be applied, this can also be achieved very easily by simply exchanging the stripping part for a stripping part with a different geometry.
  • the distance between the stripping part and the roller be variable. This allows the thickness of the glue line to be applied to be varied and, in particular, changed or even regulated according to a predetermined thickness without having to remove the stripping part. must.
  • the stripping part can be driven in an oscillating manner by means of a drive device parallel to the rotation axis of the roller.
  • the proposed further development makes it possible to remove foreign particles.
  • the glue mass can be stimulated to make a homogenizing transverse movement.
  • the stripping part and/or the rollers have at least one depression and/or elevation in the surface that comes into contact with the glue.
  • the depressions and/or elevations can be used to create a glue track with different thicknesses in the transverse direction or in the longitudinal direction, so that the glue track deliberately has zones or sections that harden quickly or more slowly.
  • the depressions and/or elevations are provided in the roller, they can be interrupted in the circumferential direction, so that the glue track is designed with a thickness that changes rhythmically in the direction of travel.
  • the depression and/or elevation are provided in the form of closed rings provided on the roller, a glue track with a thickness that changes transversely to the direction of travel can be created.
  • Such a glue track can also be created by a stripping part with depressions and/or elevations in the stripping edge.
  • the quality of the glue track can be further improved by providing several stripping parts distributed over the circumference of the roller.
  • the stripping parts can each have an identical orientation and an identical distance from the roller, so that the glue track is formed on one of the stripping parts in a first step and is then reshaped on the other stripping parts during the further rotational movement of the roller.
  • the stripping parts can also have different distances from the roller, particularly in the arrangement in the direction of rotation of the roller, which decrease in each case, so that the glue track is successively formed during the rotational movement of the roller.
  • the stripping part is shaped on the surface facing the roller in such a way that a gap with a constant gap width in the direction of rotation of the roller is formed between the surface of the roller and the surface of the stripping part facing the roller.
  • the gap with the constant gap width not only strips off the excess glue, but also actively shapes the glue track in the gap over a longer section of the circumference of the roller.
  • the stripping part has a width parallel to the axis of rotation of the roller which is larger or at most 1.0 mm narrower than the width of the glue track to be applied to the wrapping strip.
  • the stripping part has a distance of 0.01 to 0.1 mm from the roller for a high-quality glue track.
  • a glue reservoir can be provided on the roller, into which the glue exiting the nozzle enters and which is limited on one side by the stripping part.
  • the glue reservoir serves as a kind of intermediate storage for the glue that is on the roller and from which the roller transports the glue away through its rotating movement.
  • the stripping part limits the glue reservoir on one side, so that it practically blocks the glue on the roller and only allows the glue to be transported away through the gap between the stripping part and the roller.
  • the stripping part is aligned such that the edge side of the stripping part arranged downstream in the direction of rotation of the roller encloses an angle of at least 20 degrees to the surface of the roller.
  • the stripping part is adjustable about a rotation axis, and that the stripping part is aligned such that the rotation axis is aligned parallel to the rotation axis of the roller, and the stripping part is formed by a polygonal profile in a cutting plane perpendicular to its rotation axis.
  • the roller preferably has a diameter of 2 to 15 mm and is driven at a speed of 1000 rpm to 12000 rpm.
  • the glue preferably has a viscosity of at least 180 mPas and is applied in an amount of 5 g to 40 g per 500 m length of the wrapping strip, the transport speed of the wrapping strip preferably being between 100 m/min and 700 m/min.
  • FIG. 1 is the basic structure of a device with a nozzle 2 fixed to the machine with an outlet opening 3 and a roller 4 arranged at the outlet opening 3 and driven in rotation about an axis of rotation 11 in the direction of arrow A.
  • the roller 4 in this case is the end of a shaft leading out of an electric motor 5 and is driven in rotation in the direction of arrow A.
  • the electric motor 5 is fixed to the machine in the same way as the nozzle 2 and can therefore be regarded as stationary together with the roller 4 (the leading out shaft).
  • an endless wrapping strip 1 can be seen which is transported by means of a transport device (not shown) in the direction of arrow B at a transport speed of 100 m/min to 700 m/min, preferably 600 m/min.
  • the roller 4 is arranged between the wrapping strip 1 and the outlet opening 3 of the nozzle 2, i.e. opposite the circumferential section of the roller 4 in which the roller 4 comes to rest on the wrapping strip 1.
  • the term "fixed” also includes a roller 4 or a nozzle 2 which can make slight movements with the axis of rotation towards the wrapping strip 1 or towards each other during or before the glue is applied, whereby the alignment of the roller 4 and the nozzle 2 towards each other and towards the wrapping strip 1 can be slightly varied or adjusted.
  • the only important thing when interpreting the term "fixed” is that the application movement of the glue line onto the wrapping strip 1 occurs when the wrapping strip 1 moves past the roller 4 or opposite the nozzle 2.
  • the glue line is practically transported away from the roller 4 by the movement of the wrapping strip 1, wherein the possible slight movements of the roller 4 or the nozzle 2 for adjusting the alignment and/or during the application of the glue line are to be considered negligible for the application movement of the glue line.
  • the roller 4 is driven clockwise in the direction of arrow A, so that the roller 4 moves against the transport direction of the wrapping strip 1 in the section which is opposite the wrapping strip 1 or in the section in which it comes into contact with the wrapping strip 1.
  • the glue emerging from the outlet opening 3 of the nozzle 2 is thereby transported away from the roller 4 in a clockwise direction and applied to the wrapping strip 1 in the form of a glue track 6 with a constant width.
  • the glue is applied in an amount of 5 g to 40 g per 500 meters of length of the wrapping strip 1 for a linear glue track 6 and up to an amount of 100 g per 500 meters for a flat glue track 6.
  • the roller 4 is cleaned again in the movement of the wrapping strip 1, which can also be seen because the layer thickness of the glue on the roller 4 is considerably thinner in this section. This makes it possible to avoid the so-called "glue nose" on the nozzle 2 that previously occurred.
  • the width and thickness of the glue line 6 are applied to the wrapping strip 1 much more evenly than was possible with the previously used solution of directly applying the glue line 6 via the nozzle 2, so that after the layers of the wrapping strip 1 have been glued together, a much stronger glue seam with a greater adhesive strength is obtained.
  • the greater adhesive strength is achieved by using the glue completely to form a composite layer between the fibers of the wrapping strip 1 for the bonding. This creates a composite layer that is as homogeneous as possible of fibers from the layers of the wrapping strip 1 that are glued together, with glue particles embedded in between.
  • This homogeneous composite layer leads to an increased adhesive strength, since a layer consisting exclusively of glue with a lower adhesive strength, as experience has shown, is no longer present. In this case, the use of less glue leads to a higher adhesive strength and less contamination of the machine.
  • the glue seam is made of cold glue with a layer consisting exclusively of glue, which is then passed past a heating bar and hardened, there is also the risk that the water in the glue mass will evaporate on the heating bar in the glue mass as it hardens, thereby forming small cavities. These cavities then form interruptions in the glue seam and reduce the adhesive strength by the glue seam tearing open under load in a tear line running through the cavities. Since the glue seam is applied in a much more controlled manner using the solution according to the invention and a layer consisting exclusively of glue in the glue seam can therefore be avoided, the adhesive strength can ultimately be increased using the solution according to the invention.
  • the device can produce a very uniform glue seam with a substantially constant thickness and a consistently high adhesive strength even at very high strand speeds. This is because the glue seam is first rubbed to a larger width with a more constant thickness by being applied to the roller 4 before being applied to the wrapping strip 1, and only then is it applied to the wrapping strip 1 by the roller 4.
  • the roller 4 can be seen with a stripping part 7 directed towards the roller 4 and two possible orientations of a nozzle 2.
  • the stripping part 7 is arranged in the direction of the rotation of the roller 4 after the nozzle 2 and before the wrapping strip 1, so that a point on the surface of the roller 4 first passes the fixed nozzle 2, then the stripping part 7 and finally the wrapping strip 1.
  • the nozzle 2 is either aligned so that the escaping glue hits the roller 4 directly from above or enters the space between the roller 4 and the stripping part 7.
  • the stripping part 7 is arranged with the stripping edge 8, which can only be seen in the following figures, at a predetermined distance from the surface of the roller 4.
  • the glue is then transported away by the rotational movement of the roller 4 and accumulated on the stripping part 7 to form a glue reservoir 9. Due to the predetermined distance of the stripping edge 8 from the roller 4, part of the glue can be transported away through the gap between the stripping edge 8 and the surface of the roller 4.
  • This glue track 6 with the defined thickness is then applied as glue track 6 to the wrapping strip 1.
  • the stripping part 7 serves, through the arrangement and shape of the stripping edge 8, for the active shaping of the glue track 6 formed on the roller 4 and also for the formation of the glue reservoir 9 as an intermediate storage of the glue on the roller 4.
  • the stripping part 7 is formed by a plate that is inclined to the roller 4 and is held to the higher-level device by means of a suitable holding device.
  • the stripping part 7 is designed as a part independent of the nozzle 2 and as such can be arranged and aligned individually to form the glue track 6.
  • the nozzle 2 can in turn be arranged and aligned independently of the stripping part 7 in accordance with the structural boundary conditions for applying the glue to the roller 4.
  • the glue application and the shaping of the glue track 6 practically take place at mutually independent points on the circumference of the roller 4, and the nozzle 2 and the stripping part 7 can be shaped, arranged and aligned independently of one another.
  • the stripping part 7 is adjustable about a rotation axis 12.
  • the stripping part 7 is designed as a polygonal profile, in this case as a hexagonal profile, in a cutting plane perpendicular to its rotation axis 12 and is arranged with a stripping edge 8 at a distance from the roller 4.
  • the stripping part 7, like the roller 4, has a constant external shape in the direction of its rotation axes 11 and 12. Furthermore, the stripping part 7 is aligned such that the rotation axis 12 of the stripping part 7 is aligned parallel to the rotation axis 11 of the roller 4.
  • a roller 4 with a stripping part 7 and three nozzles 2 or three glue reservoirs 9 produced thereby can be seen.
  • glue tracks 6 with a wider geometry or several glue tracks 6 can be produced.
  • one glue track 6 can be applied to several different wrapping strips 1 with one roller 4.
  • the stripping part 7 is directed with the stripping edge 8 towards the surface 18 of the roller and is arranged such that a gap S is present between the stripping edge 8 and the surface 18 of the roller 4.
  • the stripping part 7 has a thickness of at least 0.01 mm and is aligned such that the angle W between the surface 17 of the stripping part 7 facing away from the glue reservoir 9 and the surface 18 of the roller 4 is at least 20 degrees.
  • the stripping part 7 can also be adjusted by a suitable drive device to realize different angles W and distances from the roller 4.
  • the stripping edge 8 of the stripping part 7 is deburred on the side facing away from the glue reservoir 9 to a dimension D of a maximum of 0.1 mm, so that the stripping edge 8 has a sharpness on this side, which ensures that the glue track 6 formed in the gap S between the stripping edge 8 and the surface 18 of the roller 4 does not widen again after leaving the gap S.
  • stripping parts 7 with different geometries and orientations to the roller 4 can be seen, which can be used individually or in combination to form the glue track 6.
  • the stripping edge 8 can also be the front edge of a stripping surface 19 of a stripping part 7 facing the roller 4.
  • the stripping surface 19 of the stripping part 7 is then preferably formed as a negative surface to the surface 18 of the roller 4, so that between the stripping surface 19 of the stripping part 7 and the surface of the roller 4 a gap S with a constant gap width in the direction of rotation of the roller 4 is formed, in which the glue track 6 is formed.
  • a roller 4 with several stripping parts 7 in different positions and orientations can be seen, which can be provided individually or in combination for applying the glue and for forming the glue track 6 on the roller 4.
  • the stripping part 7 is shaped as a kind of shell part, which has a stripping surface 19 adjoining the stripping edge 8 in the direction of rotation of the roller 4 with a partially circular shape in the manner of a half-shell.
  • the radius of the stripping surface 19 is slightly larger than the radius of the roller 4.
  • the stripping surface 19 is shaped so that it is concentric with the roller 4, so that a shaping channel with a gap width S that is constant in the direction of rotation of the roller 4 is formed between the stripping surface 19 of the stripping part 7 and the roller 4.
  • the stripping part 7 extends, as can be seen in the right-hand illustration, over a circumferential section of up to 180 degrees of the roller 4.
  • the stripping part 7 is formed by a collecting tray in which the glue collects.
  • the collecting tray has a stripping edge 8 directed towards the roller 4, which is arranged on an edge side 20 of the collecting tray extending in the direction of the roller 4.
  • the embodiment with the stripping part 7 designed as a hexagonal profile is shown again enlarged.
  • the stripping part 7 is aligned such that one of the edges forms a stripping edge 8 and is arranged at a defined distance from the roller 4.
  • the width C of the stripping part 7 corresponds to the width of the glue track 6, while in the middle illustration the width C is larger and in the lower illustration it is smaller than the width of the glue track 6.
  • the stripping part 7 should have a width C which is larger or a maximum of 1.0 mm narrower than the width of the glue track 6 to be applied.
  • the width of the glue track 6 to be applied is predetermined and can be adjusted by measuring the amount of glue applied by the nozzle 2 per unit of time, by the gap width S between the stripping edge 8 and the surface 18 of the roller 4 and the speed of the roller 4. If the width C of the stripping part 7 is smaller than the width of the glue track 6 on the roller 4, the glue is formed into a concave surface on the roller 4 and finally rubbed into a wider glue track 6 on the wrapping strip 1.
  • the stripping part 7 has a stripping edge 8 which tapers obliquely in the direction of the axis of rotation 11 of the roller 4, so that a conical glue track 6 with a thickness decreasing in the direction of its width is formed on the roller 4.
  • a stripping part 7 with a radial recess 13 arranged on the edge can be seen.
  • the recess 13 forms a step-shaped glue track 6 which has a first section 21 with a smaller thickness and a second section 22 with a larger thickness.
  • the first section 21 with the smaller thickness can be, for example, a base area also referred to as an inner glue section, used for bonding, while the second section 22 with the larger thickness forms the seam section facing the edge of the wrapping strip 1 with a greater adhesive strength.
  • FIG 16 A further embodiment can be seen in which the stripping part 7 is provided with two centrally arranged depressions 13, so that the glue track 6 has two sections 23 with a greater thickness and three sections 24 with a smaller thickness.
  • the sections 24 are quick-drying due to the smaller thickness, while the sections 23 with the greater thickness are slow-drying.
  • FIG 17 an embodiment with a stripping part 7 with a straight stripping edge 8 and a roller 4 can be seen, in which a recess 13 and an additional elevation 14 are provided in the roller 4.
  • the recess 13 is designed here as a circumferential groove and the elevation 14 as a circumferential shoulder. This makes it possible to form a glue track 6 with a base section 25 with a constant thickness and a first section 26 that is thinner than the base section 25 and a thicker second section 27.
  • glue tracks 6 with sections of different thickness can be realized by means of the depressions 13 and the elevations 14, wherein in the event that the depressions 13 and the elevations 14 in the roller 4 are not formed circumferentially, glue tracks 6 with thicker and thinner sections rhythmically interrupted in the longitudinal direction can also be realized.

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Description

Die Erfindung betrifft eine Vorrichtung zum Auftragen einer Leimspur auf einen Umhüllungsstreifen eines stabförmigen Produktes der Tabak verarbeitenden Industrie mit den Merkmalen des Oberbegriffs von Anspruch 1.The invention relates to a device for applying a line of glue to a wrapping strip of a rod-shaped product of the tobacco processing industry with the features of the preamble of claim 1.

Der Umhüllungsstreifen dient allgemein zur Formfixierung der stabförmigen Produkte, welche z.B. Vorprodukte, wie Filterstäbe oder Tabak, oder auch fertige Produkte, wie z.B. Zigaretten, Zigarillos, mit und ohne Filter sein können.The wrapping strip is generally used to fix the shape of the rod-shaped products, which can be, for example, preliminary products such as filter rods or tobacco, or also finished products such as cigarettes, cigarillos, with and without filters.

Der Umhüllungsstreifen wird zuerst in einem kontinuierlichen Herstellungsprozess auf ein endloses Transportband umgelenkt und aufgelegt. Anschließend wird ein Filtermaterial aus losen Filtermaterialfasern, Filtersegmenten oder ein Strang von noch nicht fixierten Tabakfasern auf den Umhüllungsstreifen aufgelegt. Der Umhüllungsstreifen wird dann mit dem aufliegenden Strang durch einen Formgebungsabschnitt geführt, in dem der Umhüllungsstreifen seitlich des Stranges hochgeschlagen und an einer Randseite mit einer dünnen Leimspur versehen wird. Anschließend wird der Umhüllungsstreifen weiter um den Strang herumgeschlagen, bis sich die Ränder des Umhüllungsstreifens überlappen. Die Randseiten des Umhüllungsstreifens werden dann durch Ausüben einer geringen Andruckkraft und/oder thermischer Energie über die Leimnaht miteinander verklebt, so dass der Strang anschließend im Querschnitt durch den Umhüllungsstreifen formfixiert ist. Alternativ kann die Leimspur auch in Form von Leimpunkten mit einem bestimmten Abstand aufgetragen werden, was z.B. bei einem Anhaften der Filtersegmente bei einer Unterbeleimung der Fall ist. Die Leimpunkte und das Towmaterial werden in diesem Fall in der Mitte auf den Umhüllungsstreifen an einer Stelle weit vor dem Umschlagen des Umhüllungsstreifens aufgebracht, und dienen zu einer Vorfixierung der Filtersegmente an dem Umhüllungsstreifen. Grundsätzlich ist die Verwendung von Leimpunkten aber ein Sonderfall, normal ist sowohl bei Monofiltern (Tow) als auch bei Multifiltern (Segmente) die Verwendung einer Leimspur.The wrapping strip is first diverted and placed on an endless conveyor belt in a continuous production process. A filter material made of loose filter material fibers, filter segments or a strand of tobacco fibers that have not yet been fixed is then placed on the wrapping strip. The wrapping strip is then guided with the strand lying on top through a shaping section in which the wrapping strip is folded up at the side of the strand and a thin line of glue is applied to one edge. The wrapping strip is then folded further around the strand until the edges of the wrapping strip overlap. The edges of the wrapping strip are then glued together by applying a small pressure force and/or thermal energy via the glue seam, so that the strand is then fixed in shape in cross-section by the wrapping strip. Alternatively, the glue line can also be applied in the form of glue dots at a certain distance apart, which is the case, for example, when the filter segments adhere when glue is applied underneath. In this case, the glue dots and the tow material are applied in the middle of the wrapping strip at a point well before the wrapping strip is folded over, and serve to pre-fix the filter segments to the wrapping strip. In principle, the use of glue dots is a special case; the use of a glue line is normal for both monofilters (tow) and multifilters (segments).

Zum Auftragen der Leimspur ist eine Düse mit einem runden Öffnungsquerschnitt mit einem Durchmesser von z.B. 1,6 mm vorgesehen, über die der Leim kontinuierlich z.B. mit einer Zahnradpumpe in einem von dieser vorgegebenen Volumen aufgetragen wird. Das aufgetragene Leimvolumen kann in diesem Fall z.B. durch eine Drehzahlsteuerung der Zahnradpumpe gesteuert werden. Dadurch ergibt sich in Abhängigkeit von dem von der Zahnradpumpe erzeugten Volumen eine Leimauftragsmenge von ca. (3-8g)/600m Stranglänge für die Fixierung des den Tabak fixierenden Umhüllungsstreifens und eine Leimauftragsmenge von ca. 10 bis 30 g/600m Stranglänge für die Fixierung eines Umhüllungsstreifens eines Filterstranges, wobei die Stranggeschwindigkeit ca. 200 bis über 600 m/min beträgt. Es wurden aber in Ausnahmefällen auch schon Anlagen mit einer Stranggeschwindigkeit von mehr als 600 m/min, wie z.B. 700 m/min oder mehr, realisiert, und es ist nicht auszuschließen, dass zur Reduzierung der Herstellkosten die Stranggeschwindigkeit grundsätzlich noch weiter gesteigert wird.To apply the glue line, a nozzle with a round opening cross-section with a diameter of e.g. 1.6 mm is provided, through which the glue is continuously applied, e.g. with a gear pump, in a volume specified by the latter. In this case, the volume of glue applied can be controlled, for example, by controlling the speed of the gear pump. Depending on the volume generated by the gear pump, this results in a glue application quantity of approx. (3-8g)/600m strand length for fixing the wrapping strip that fixes the tobacco and a glue application quantity of approx. 10 to 30 g/600m strand length for fixing a wrapping strip of a filter strand, with the strand speed being approx. 200 to over 600 m/min. However, in exceptional cases, systems with a strand speed of more than 600 m/min, such as 700 m/min or more, have already been realized, and it cannot be ruled out that the strand speed will be increased even further in order to reduce manufacturing costs.

Ein Nachteil der oben beschriebenen Lösung ist darin zu sehen, dass der Leim aufgrund der Reibung an der Innenwandung der Düse über den Querschnitt verteilt ungleichmäßig aus der Düse austritt. Die Leimaustrittsgeschwindigkeit ist dadurch und aufgrund der vorherrschenden laminaren Strömung in der Mitte der Düsenöffnung deutlich größer als in dem Randabschnitt der Düsenöffnung und weist einen parabelförmigen Verlauf über den Querschnitt auf. Da zur Schaffung einer Leimspur mit einer bestimmten Breite eine bestimmte Mindestmenge an Leim über die gesamte Breite der Leimspur aufgetragen werden muss, und die Leimaustrittsgeschwindigkeit in der Mitte der Düsenöffnung aufgrund der oben beschriebenen Problematik zwangsläufig höher als in der Randzone ist, wird der Leim in der Mitte der Düsenöffnung im Vergleich zu der eigentlich erforderlichen Leimmenge pro Fläche in einer überhöhten Menge aufgetragen. Ferner ist die Zeitspanne, in der der Umhüllungsstreifen an den parallel zu der Transportrichtung gerichteten Randabschnitten der Düsenöffnung vorbeigeführt wird, aufgrund der Kreisform der Austrittsöffnung der Düse deutlich geringer als die Zeitspanne, in der der Umhüllungsstreifen an dem Mittenabschnitt der Austrittsöffnung vorbeigeführt wird. Beide Umstände führen im Ergebnis dazu, dass in der Mitte der Leimspur deutlich mehr Leim als in den Randabschnitten aufgetragen wird. Grundsätzlich ist es aber wünschenswert, den Leim für eine Leimspur mit einer großen Klebkraft möglichst gleichmäßig aufzutragen, wobei eine vorgegebene Mindestmenge an Leim nicht unterschritten werden sollte.A disadvantage of the solution described above is that the glue emerges from the nozzle unevenly across the cross-section due to friction on the inner wall of the nozzle. As a result of this and due to the predominant laminar flow, the glue exit speed is significantly higher in the middle of the nozzle opening than in the edge section of the nozzle opening and has a parabolic shape across the cross-section. Since a certain minimum amount of glue must be applied across the entire width of the glue track to create a glue track of a certain width, and the glue exit speed in the middle of the nozzle opening is inevitably higher than in the edge zone due to the problem described above, the glue is applied in an excessive amount in the middle of the nozzle opening compared to the amount of glue actually required per area. Furthermore, due to the circular shape of the nozzle's outlet opening, the time in which the wrapping strip is guided past the edge sections of the nozzle opening that are parallel to the transport direction is significantly shorter than the time in which the wrapping strip is guided past the middle section of the outlet opening. Both circumstances result in significantly more glue being applied in the middle of the glue line than in the edge sections. In principle, however, it is desirable to apply the glue as evenly as possible for a glue line with a high adhesive strength, whereby a specified minimum amount of glue should not be undercut.

Aufgrund der Überhöhung der Leimaustrittsgeschwindigkeit und damit auch der Leimmenge in der Mitte der Austrittsöffnung der Düse tritt der Leim in der Mitte der Austrittsöffnung zu einem größeren Anteil durch den porösen Umhüllungsstreifen hindurch, ohne zur Verklebung der Ränder des Umhüllungsstreifens beizutragen. Dieser Effekt wird auch als Leimdurchschlag bezeichnet. Der Leimdurchschlag steht in Abhängigkeit zu der Porosität des Umhüllungsstreifens und nimmt mit dieser zu. Neben einer unerwünschten möglichen geschmacklichen Veränderung der Produkte führt der Leimdurchschlag zu einer unerwünschten Verschmutzung der gesamten Vorrichtung bzw. Anlage und der nachfolgenden Produkte. Durch den Leimdurchschlag wird die Klebkraft zusätzlich zu der Reduzierung der Klebkraft aufgrund der unterschiedlichen Verteilung weiter verringert.Due to the increased speed of the glue discharge and thus also the amount of glue in the middle of the nozzle's outlet opening, a larger proportion of the glue passes through the porous wrapping strip in the middle of the outlet opening without contributing to the bonding of the edges of the wrapping strip. This effect is also known as glue penetration. The glue penetration depends on the porosity of the wrapping strip and increases with it. In addition to an undesirable possible change in the taste of the products, glue penetration leads to undesirable contamination of the entire device or system and the subsequent products. Glue penetration further reduces the adhesive strength in addition to the reduction in the adhesive strength due to the different distribution.

Da das Filtermaterial außerdem bei der Strangherstellung stark komprimiert wird und erst durch das Trocknen des aufgebrachten Acetats vernetzt in sich formstabilisiert wird, übt das Filtermaterial zum Zeitpunkt des Verklebens noch eine verhältnismäßig hohe Rückstellkraft aus. Aus diesem Grund wird auf den Umhüllungsstreifen eine Heißleimnaht mit einer hohen sofort wirksamen Klebkraft aufgetragen. Da der Heißleim aber nicht alterungsbeständig ist, und die Filter nicht in jedem Fall zeitnah weiterverarbeitet werden, kann die Verklebung der Ränder optional durch eine zweite, auch als Unterstützungsnaht bezeichnete, parallel zu der Heißleimnaht verlaufende Kaltleimnaht stabilisiert werden. In Zigarettenmaschinen wird der Umhüllungsstreifen zum Aushärten der Kaltleimnaht mit einem möglichst geringen Andruck an einem Heizsteg vorbeigeführt, während bei Filtermaschinen in der Regel nur die Heißleimnaht während des Produktionsprozesses durch einen Kühlsteg ausgehärtet wird. Die bei der Filtermaschine vorgesehene optionale Kaltleimnaht härtet im Gegensatz zu der Zigarettenherstellung ohne eine thermische Energiezufuhr aus. Grundsätzlich kann die überschüssige Leimmasse sowohl den Aushärtungsprozess als auch die Führung des Umhüllungsstreifens als solches nachteilig beeinflussen.Since the filter material is also strongly compressed during strand production and is only stabilised in shape by the drying of the applied acetate, the filter material still exerts a relatively high restoring force at the time of bonding. For this reason, the wrapping strips a hot glue seam with a high, immediately effective adhesive strength is applied. However, since the hot glue is not age-resistant and the filters are not always processed further in a timely manner, the bonding of the edges can optionally be stabilized by a second cold glue seam, also known as a support seam, running parallel to the hot glue seam. In cigarette machines, the wrapping strip is guided past a heating bar with as little pressure as possible to harden the cold glue seam, while in filter machines, only the hot glue seam is usually hardened by a cooling bar during the production process. In contrast to cigarette production, the optional cold glue seam provided in the filter machine hardens without the addition of thermal energy. In principle, the excess glue can have a detrimental effect on both the hardening process and the guidance of the wrapping strip itself.

Die Kaltleimspur und die Heißleimspur werden parallel auf einem sehr schmalen Randabschnitt des Umhüllungsstreifens des Filters aufgebracht. Aufgrund des sehr schmalen Randstreifens müssen die Leimspuren mit einer möglichst geringen Formabweichung von einem vorgegebenen Verlauf und einer vorgegebenen Breite aufgetragen werden.The cold glue line and the hot glue line are applied parallel to a very narrow edge section of the filter's wrapping strip. Due to the very narrow edge strip, the glue lines must be applied with as little deviation in shape as possible from a given course and a given width.

Die Verklebung des Filterstranges über die zwei parallel ausgerichteten Leimspuren bereitet daher erhebliche konstruktive Probleme und ist darüber hinaus sehr kostenintensiv.Bonding the filter strand using two parallel glue lines therefore causes considerable construction problems and is also very costly.

Zur Verbesserung der Klebkraft ist es aus der EP 1 002 468 A2 bekannt, die Leimspur in Form eines Schaumes aufzutragen, welcher dadurch gebildet wird, indem der flüssige Leim mit Gasbläschen, insbesondere mit Inertgas- oder Luftbläschen, versetzt wird.To improve the adhesive strength, it is EP 1 002 468 A2 It is known to apply the glue in the form of a foam, which is formed by adding gas bubbles, in particular inert gas or air bubbles, to the liquid glue.

In dem deutschen Patent DE 10 2014 213 858 B3 der Anmelderin wird vorgeschlagen, den Leim über eine Düse auf eine entgegengesetzt zu der Bewegung des Umhüllungsstreifens rotatorisch antreibbare Walze aufzutragen. Die Walze ist exzentrisch zu der Düse angeordnet, so dass sich der Leim zwischen der Düse und der Walze in einem Leimreservoir aufstaut und durch eine Engstelle auf die Walze aufgetragen wird. Nachteilig bei dieser Lösung ist, dass die Ausrichtung der Düse für die Qualität der auf der Walze aufgebrachten Leimspur und der schließlich auf dem Umhüllungsstreifen aufgetragenen Leimnaht von erheblicher Bedeutung ist.In the German patent EN 10 2014 213 858 B3 The applicant proposes applying the glue via a nozzle to a roller that can be driven in rotation in the opposite direction to the movement of the wrapping strip. The roller is arranged eccentrically to the nozzle, so that the glue builds up in a glue reservoir between the nozzle and the roller and is applied to the roller through a narrow point. The disadvantage of this solution is that the orientation of the nozzle is of considerable importance for the quality of the glue line applied to the roller and the glue seam finally applied to the wrapping strip.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung bereitzustellen, mit der ein Auftrag einer Leimspur auf einen Umhüllungsstreifen mit einer sehr hohen Genauigkeit, einer möglichst großen Klebkraft und einer gleichzeitig möglichst geringen Verschmutzung des Umhüllungsstreifens und der Vorrichtung bzw. der Umgebung möglich ist.Against this background, the invention is based on the object of providing a generic device with which it is possible to apply a line of glue to a wrapping strip with a very high degree of accuracy, the greatest possible adhesive strength and, at the same time, the least possible contamination of the wrapping strip and the device or the environment.

Zur Lösung der Aufgabe wird eine Vorrichtung mit den Merkmalen des Anspruchs 1 vorgeschlagen. Weitere bevorzugte Weiterentwicklungen der Erfindung sind den Unteransprüchen, den Figuren und der zugehörigen Beschreibung zu entnehmen.To solve the problem, a device with the features of claim 1 is proposed. Further preferred developments of the invention can be found in the subclaims, the figures and the associated description.

Gemäß dem Grundgedanken der Erfindung wird vorgeschlagen, dass in Drehrichtung der Walze zwischen der Düse und dem Umhüllungsstreifen ein auf die Walze gerichtetes Abstreifteil vorgesehen ist, welches einen definierten Abstand zu der Walze aufweist.According to the basic idea of the invention, it is proposed that a stripping part directed towards the roller is provided between the nozzle and the wrapping strip in the direction of rotation of the roller, which stripping part has a defined distance from the roller.

Der Vorteil der vorgeschlagenen Lösung ist darin zu sehen, dass der von der Düse auf die Walze aufgetragene Leim durch das in dem definierten Abstand angeordnete Abstreifteil zu einer Leimspur mit einer definierten Dicke geformt wird, welche dem definierten Abstand des Abstreifteils zu der Walze entspricht. Dabei ist es für die Funktion des Abstreifteils wichtig, dass das Abstreifteil in Drehrichtung zwischen der Düse und dem Umhüllungsstreifen angeordnet ist, damit der Leim zuerst von der Düse auf die Walze aufgetragen wird und anschließend die gewünschte Leimspur während der weiteren Drehbewegung der Walze durch das Abstreifteil aus der aufgetragenen Leimmenge geformt wird. Die alleinige Funktion des Abstreifteils ist die Formgebung der Leimspur auf der Walze, so dass die Leimspur durch eine entsprechend genaue Formgebung des Abstreifteils und insbesondere deren Abstreifkante und eine entsprechend genaue Positionierung des Abstreifteils zu der Walze mit einer sehr hohen Formgenauigkeit und insbesondere sehr hohen Genauigkeit der Dicke auf der Walze hergestellt und schließlich auf den Umhüllungsstreifen aufgetragen werden kann. Dabei ist es insbesondere von Vorteil, dass das Abstreifteil unabhängig von der Düse und dem Auftragsort der Leimspur auf den Umhüllungsstreifen positioniert und ausgerichtet werden kann, so dass die Formgebung der Leimspur auch unabhängig von dem Auftragen des Leims auf die Walze und unabhängig vom dem Auftragen der Leimspur auf den Umhüllungsstreifen erfolgt. Dabei können neben der Qualität der Leimspur durch das von der Düse unabhängige Abstreifteil und die dadurch ermöglichte unabhängige Formgebung der Leimspur zusätzliche Aspekte wie z.B. die Verschmutzung der Anlage berücksichtigt werden. Außerdem kann die Formgebung der Leimspur unabhängig von der Position der Düse aufgrund des gesonderten Abstreifteils möglichst nahe dem Auftrag der Leimspur auf den Umhüllungsstreifen erfolgen. Ein weiterer Vorteil der Erfindung liegt darin, dass, sofern das Abstreifteil verschlissen ist, und die Leimspur nicht mehr der geforderten Qualität entspricht, es möglich ist, das Abstreifteil als Einzelteil auszutauschen. Sofern eine Leimspur mit einer anderen Geometrie aufgetragen werden soll, kann dieses auch sehr einfach realisiert werden, indem nur das Abstreifteil gegen ein Abstreifteil mit einer anderen Geometrie ausgetauscht wird.The advantage of the proposed solution is that the glue applied by the nozzle to the roller is formed by the stripping part arranged at the defined distance into a glue track with a defined thickness, which corresponds to the defined distance of the stripping part from the roller. It is important for the function of the stripping part that the stripping part is arranged in the direction of rotation between the nozzle and the wrapping strip, so that the glue is first applied by the nozzle to the roller and then the desired glue track is formed from the amount of glue applied by the stripping part during the further rotation of the roller. The sole function of the stripping part is to shape the glue track on the roller, so that the glue track can be produced on the roller with a very high degree of shape accuracy and in particular a very high degree of thickness accuracy by appropriately shaping the stripping part and in particular its stripping edge and appropriately positioning the stripping part to the roller and finally applied to the wrapping strip. It is particularly advantageous that the stripping part can be positioned and aligned independently of the nozzle and the application location of the glue line on the wrapping strip, so that the shape of the glue line also occurs independently of the application of the glue to the roller and independently of the application of the glue line to the wrapping strip. In addition to the quality of the glue line, additional aspects such as contamination of the system can be taken into account thanks to the stripping part being independent of the nozzle and the independent shaping of the glue line that this enables. In addition, the shape of the glue line can occur as close as possible to the application of the glue line on the wrapping strip, regardless of the position of the nozzle, thanks to the separate stripping part. A further advantage of the invention is that if the stripping part is worn and the glue line no longer corresponds to the required quality, it is possible to replace the stripping part as an individual part. If a glue line with a different geometry is to be applied, this can also be achieved very easily by simply exchanging the stripping part for a stripping part with a different geometry.

Weiter wird vorgeschlagen, dass der Abstand zwischen dem Abstreifteil und der Walze veränderbar ist. Dadurch kann die Dicke der aufzutragenden Leimspur variiert und insbesondere auch entsprechend einer vorgegebenen Dicke verändert oder sogar geregelt werden, ohne dass das Abstreifteil dazu ausgebaut werden muss.It is also proposed that the distance between the stripping part and the roller be variable. This allows the thickness of the glue line to be applied to be varied and, in particular, changed or even regulated according to a predetermined thickness without having to remove the stripping part. must.

Ferner wird vorgeschlagen, dass das Abstreifteil mittels einer Antriebseinrichtung parallel zu der Drehachse der Walze oszillierend antreibbar ist. Durch die vorgeschlagene Weiterentwicklung ist es möglich Fremdpartikel zu entfernen. Ferner kann die Leimmasse dadurch zu einer homogenisierenden Querbewegung angeregt werden.It is also proposed that the stripping part can be driven in an oscillating manner by means of a drive device parallel to the rotation axis of the roller. The proposed further development makes it possible to remove foreign particles. Furthermore, the glue mass can be stimulated to make a homogenizing transverse movement.

Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung wird vorgeschlagen, dass das Abstreifteil und/oder die Walzen in der mit dem Leim in Kontakt gelangenden Oberfläche wenigstens eine Vertiefung und/oder Erhöhung aufweisen. Durch die Vertiefungen und/oder Erhöhungen kann eine Leimspur mit in Querrichtung oder in Längsrichtung unterschiedlichen Dicken verwirklicht werden, so dass die Leimspur bewusst schnell oder langsamer aushärtende Zonen oder Abschnitte aufweist. Sofern die Vertiefungen und/oder Erhöhungen in der Walze vorgesehen sind, können diese in Umfangsrichtung unterbrochen sein, so dass die Leimspur mit einer in Verlaufsrichtung rhythmisch sich verändernden Dicke ausgebildet ist. Sofern die Vertiefung und/oder Erhöhung in Form von an der Walze vorgesehenen geschlossenen Ringen vorgesehen sind, kann eine Leimspur mit einer quer zu der Verlaufsrichtung sich verändernden Dicke verwirklicht werden. Eine solche Leimspur kann auch durch ein Abstreifteil mit Vertiefungen und/oder Erhöhungen in der Abstreifkante verwirklicht werden.According to a further preferred embodiment of the invention, it is proposed that the stripping part and/or the rollers have at least one depression and/or elevation in the surface that comes into contact with the glue. The depressions and/or elevations can be used to create a glue track with different thicknesses in the transverse direction or in the longitudinal direction, so that the glue track deliberately has zones or sections that harden quickly or more slowly. If the depressions and/or elevations are provided in the roller, they can be interrupted in the circumferential direction, so that the glue track is designed with a thickness that changes rhythmically in the direction of travel. If the depression and/or elevation are provided in the form of closed rings provided on the roller, a glue track with a thickness that changes transversely to the direction of travel can be created. Such a glue track can also be created by a stripping part with depressions and/or elevations in the stripping edge.

Die Qualität der Leimspur kann ferner dadurch verbessert werden, indem mehrere, über den Umfang der Walze verteilt angeordnete Abstreifteile vorgesehen sind. Dabei können die Abstreifteile jeweils eine identische Ausrichtung und einen identischen Abstand zu der Walze haben, so dass die Leimspur in einem ersten Schritt an einem der Abstreifteile geformt und während der weiteren Umlaufbewegung der Walze an den jeweils anderen Abstreifteilen nachgeformt wird. Alternativ können die Abstreifteile auch unterschiedliche und insbesondere in der Anordnung in Drehrichtung der Walze jeweils abnehmende Abstände zu der Walze aufweisen, so dass die Leimspur während der Drehbewegung der Walze sukzessive geformt wird.The quality of the glue track can be further improved by providing several stripping parts distributed over the circumference of the roller. The stripping parts can each have an identical orientation and an identical distance from the roller, so that the glue track is formed on one of the stripping parts in a first step and is then reshaped on the other stripping parts during the further rotational movement of the roller. Alternatively, the stripping parts can also have different distances from the roller, particularly in the arrangement in the direction of rotation of the roller, which decrease in each case, so that the glue track is successively formed during the rotational movement of the roller.

Weiter wird vorgeschlagen, dass das Abstreifteil an der der Walze zugewandten Oberfläche derart geformt ist, dass zwischen der Oberfläche der Walze und der der Walze zugewandten Oberfläche des Abstreifteils ein Spalt mit einer in Drehrichtung der Walze konstanten Spaltweite gebildet ist. Durch den Spalt mit der konstanten Spaltweite wird der überschüssige Leim nicht nur abgestriffen, es findet zusätzlich auch noch eine aktive Formgebung der Leimspur in dem Spalt über einen längeren Abschnitt des Umfanges der Walze statt.It is further proposed that the stripping part is shaped on the surface facing the roller in such a way that a gap with a constant gap width in the direction of rotation of the roller is formed between the surface of the roller and the surface of the stripping part facing the roller. The gap with the constant gap width not only strips off the excess glue, but also actively shapes the glue track in the gap over a longer section of the circumference of the roller.

Es hat sich ferner herausgestellt, dass eine qualitativ hochwertige Leimspur mit guten Klebeeigenschaften verwirklicht werden kann, wenn das Abstreifteil parallel zu der Drehachse der Walze eine Breite aufweist, welche größer oder maximal 1,0 mm schmaler als die Breite der auf den Umhüllungsstreifen aufzutragenden Leimspur ist.It has also been found that a high-quality glue track with good adhesive properties can be realized if the stripping part has a width parallel to the axis of rotation of the roller which is larger or at most 1.0 mm narrower than the width of the glue track to be applied to the wrapping strip.

Ferner weist das Abstreifteil für eine qualitativ hochwertige Leimspur erfindungsgemäß einen Abstand von 0,01 bis 0,1 mm zu der Walze auf.Furthermore, according to the invention, the stripping part has a distance of 0.01 to 0.1 mm from the roller for a high-quality glue track.

Weiterhin kann ein an der Walze anliegendes Leimreservoir vorgesehen sein, in welches der aus der Düse austretende Leim eintritt, und welches durch das Abstreifteil einseitig begrenzt ist. Das Leimreservoir dient als eine Art Zwischenspeicher für den Leim, der an der Walze anliegt und aus dem die Walze den Leim durch ihre Drehbewegung abtransportiert. Das Abstreifteil begrenzt das Leimreservoir einseitig, so dass es den Leim an der Walze praktisch aufstaut und nur einen Abtransport des Leims durch den Spalt zwischen dem Abstreifteil und der Walze zulässt.Furthermore, a glue reservoir can be provided on the roller, into which the glue exiting the nozzle enters and which is limited on one side by the stripping part. The glue reservoir serves as a kind of intermediate storage for the glue that is on the roller and from which the roller transports the glue away through its rotating movement. The stripping part limits the glue reservoir on one side, so that it practically blocks the glue on the roller and only allows the glue to be transported away through the gap between the stripping part and the roller.

Weiterhin wird vorgeschlagen, dass das Abstreifteil derart ausgerichtet ist, dass die in Drehrichtung der Walze stromabwärts angeordnete Randseite des Abstreifteils einen Winkel von wenigstens 20 Grad zu der Oberfläche der Walze einschließt.It is further proposed that the stripping part is aligned such that the edge side of the stripping part arranged downstream in the direction of rotation of the roller encloses an angle of at least 20 degrees to the surface of the roller.

Weiter wird vorgeschlagen, dass das Abstreifteil um eine Drehachse verstellbar ausgebildet ist, und das Abstreifteil derart ausgerichtet ist, dass die Drehachse parallel zu der Drehachse der Walze ausgerichtet ist, und das Abstreifteil in einer Schnittebene senkrecht zu seiner Drehachse durch ein Mehrkantprofil gebildet ist. Durch die vorgeschlagene Lösung kann der Abstand der Abstreifkante des Abstreifteiles zu der Walze und damit die Dicke der auf der Walze geformten Leimspur sehr einfach durch eine Verdrehung des Abstreifteiles verändert werden, ohne dass dieses ausgetauscht oder mittels einer Zustellbewegung bewegt werden muss.It is further proposed that the stripping part is adjustable about a rotation axis, and that the stripping part is aligned such that the rotation axis is aligned parallel to the rotation axis of the roller, and the stripping part is formed by a polygonal profile in a cutting plane perpendicular to its rotation axis. With the proposed solution, the distance of the stripping edge of the stripping part from the roller and thus the thickness of the glue line formed on the roller can be changed very easily by rotating the stripping part, without it having to be replaced or moved by means of a feed movement.

Die Walze weist bevorzugt einen Durchmesser von 2 bis 15 mm auf und wird mit einer Drehzahl von 1000 U/min bis 12000 U/min angetrieben. Ferner weist der Leim bevorzugt eine Viskosität von wenigstens 180 mPas auf und wird in einer Menge von 5g bis 40g pro 500 m Länge des Umhüllungsstreifens aufgetragen, wobei die Transportgeschwindigkeit des Umhüllungsstreifens bevorzugt zwischen 100 m/min und 700 m/min beträgt.The roller preferably has a diameter of 2 to 15 mm and is driven at a speed of 1000 rpm to 12000 rpm. Furthermore, the glue preferably has a viscosity of at least 180 mPas and is applied in an amount of 5 g to 40 g per 500 m length of the wrapping strip, the transport speed of the wrapping strip preferably being between 100 m/min and 700 m/min.

Die Erfindung wird im Folgenden anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die beigefügten Figuren erläutert. Dabei zeigen:

Fig. 1:
eine Vorrichtung mit einer Düse, einer Walze und einem Umhüllungsstreifen, und
Fig. 2 bis 5:
verschiedene Ausführungsformen einer Walze mit einem Abstreifteil und einer oder mehreren Düsen, und
Fig. 6 bis 17:
verschiedene Ausführungsformen von Abstreifteilen mit einer Walze.
The invention is explained below using a preferred embodiment with reference to the attached figures.
Fig.1:
a device with a nozzle, a roller and a wrapping strip, and
Fig. 2 to 5:
various embodiments of a roller with a stripping part and one or more nozzles, and
Fig. 6 to 17:
different designs of stripping parts with a roller.

In der Figur 1 ist der Grundaufbau einer Vorrichtung mit einer maschinenfest gehaltenen Düse 2 mit einer Austrittsöffnung 3 und einer an der Austrittsöffnung 3 angeordneten, rotatorisch um eine Drehachse 11 in Pfeilrichtung A angetriebenen Walze 4 zu erkennen. Die Walze 4 ist in diesem Fall das Ende einer aus einem Elektromotor 5 heraus geführten Welle, und wird in Pfeilrichtung A rotatorisch angetrieben. Der Elektromotor 5 ist genauso wie die Düse 2 maschinenfest gehalten und kann daher zusammen mit der Walze 4 (der heraus geführten Welle) als feststehend angesehen werden. Ferner ist ein endloser Umhüllungsstreifen 1 zu erkennen, welcher mittels einer nicht dargestellten Transporteinrichtung in Pfeilrichtung B mit einer Transportgeschwindigkeit von 100 m/min bis zu 700 m/min, bevorzugt von 600 m/min transportiert wird. Die Walze 4 ist zwischen dem Umhüllungsstreifen 1 und der Austrittsöffnung 3 der Düse 2 angeordnet, also gegenüberliegend zu dem Umfangsabschnitt der Walze 4 angeordnet, in dem die Walze 4 zur Anlage an dem Umhüllungsstreifen 1 gelangt. Dabei wird unter dem Begriff feststehend auch eine Walze 4 oder eine Düse 2 angesehen, welche während des Leimauftrages oder vor dem Leimauftrag mit der Drehachse geringfügige Bewegungen zu dem Umhüllungsstreifen 1 oder zueinander ausführen können, wodurch die Ausrichtung der Walze 4 und der Düse 2 zueinander und zu dem Umhüllungsstreifen 1 geringfügig variieren bzw. eingestellt werden kann. Wichtig bei der Interpretation des Begriffs "feststehend" ist lediglich, dass die Auftragsbewegung der Leimspur auf den Umhüllungsstreifen 1 durch das Vorbeibewegen des Umhüllungsstreifens 1 an der Walze 4 bzw. gegenüber der Düse 2 erfolgt. Die Leimspur wird praktisch von der Walze 4 durch die Bewegung des Umhüllungsstreifens 1 abtransportiert, wobei die möglichen geringfügigen Bewegungen der Walze 4 oder der Düse 2 zur Einstellung der Ausrichtung und/oder während des Auftragens der Leimspur als für die Auftragsbewegung der Leimspur zu vernachlässigen anzusehen sind.In the Figure 1 is the basic structure of a device with a nozzle 2 fixed to the machine with an outlet opening 3 and a roller 4 arranged at the outlet opening 3 and driven in rotation about an axis of rotation 11 in the direction of arrow A. The roller 4 in this case is the end of a shaft leading out of an electric motor 5 and is driven in rotation in the direction of arrow A. The electric motor 5 is fixed to the machine in the same way as the nozzle 2 and can therefore be regarded as stationary together with the roller 4 (the leading out shaft). Furthermore, an endless wrapping strip 1 can be seen which is transported by means of a transport device (not shown) in the direction of arrow B at a transport speed of 100 m/min to 700 m/min, preferably 600 m/min. The roller 4 is arranged between the wrapping strip 1 and the outlet opening 3 of the nozzle 2, i.e. opposite the circumferential section of the roller 4 in which the roller 4 comes to rest on the wrapping strip 1. The term "fixed" also includes a roller 4 or a nozzle 2 which can make slight movements with the axis of rotation towards the wrapping strip 1 or towards each other during or before the glue is applied, whereby the alignment of the roller 4 and the nozzle 2 towards each other and towards the wrapping strip 1 can be slightly varied or adjusted. The only important thing when interpreting the term "fixed" is that the application movement of the glue line onto the wrapping strip 1 occurs when the wrapping strip 1 moves past the roller 4 or opposite the nozzle 2. The glue line is practically transported away from the roller 4 by the movement of the wrapping strip 1, wherein the possible slight movements of the roller 4 or the nozzle 2 for adjusting the alignment and/or during the application of the glue line are to be considered negligible for the application movement of the glue line.

Die Walze 4 wird in der Darstellung im Uhrzeigersinn in Pfeilrichtung A angetrieben, so dass die Walze 4 in dem Abschnitt, welcher dem Umhüllungsstreifen 1 gegenüberliegt bzw. in dem Abschnitt, in dem sie an dem Umhüllungstreifen 1 zur Anlage gelangt, sich entgegen der Transportrichtung des Umhüllungsstreifens 1 bewegt. Der aus der Austrittsöffnung 3 der Düse 2 austretende Leim wird dadurch im Uhrzeigersinn von der Walze 4 abtransportiert und in Form einer Leimspur 6 mit einer konstanten Breite auf den Umhüllungsstreifen 1 aufgetragen. Dabei wird der Leim in einer Menge von 5 g bis 40 g je 500 Meter Länge des Umhüllungsstreifens 1 bei einer linienförmigen Leimspur 6 und bei einer flächigen Leimspur 6 bis zu einer Menge von 100 g je 500 Meter aufgetragen. Nach dem Auftragen der Leimspur 6 auf den Umhüllungsstreifen 1 wird die Walze 4 in der von dem Umhüllungsstreifen 1 ablaufenden Bewegung wieder gereinigt, was auch dadurch zu erkennen ist, da die Schichtdicke des auf der Walze 4 befindlichen Leims in diesem Abschnitt erheblich dünner ist. Dadurch kann die bisher auftretende sogenannte "Leimnase" an der Düse 2 vermieden werden.In the illustration, the roller 4 is driven clockwise in the direction of arrow A, so that the roller 4 moves against the transport direction of the wrapping strip 1 in the section which is opposite the wrapping strip 1 or in the section in which it comes into contact with the wrapping strip 1. The glue emerging from the outlet opening 3 of the nozzle 2 is thereby transported away from the roller 4 in a clockwise direction and applied to the wrapping strip 1 in the form of a glue track 6 with a constant width. The glue is applied in an amount of 5 g to 40 g per 500 meters of length of the wrapping strip 1 for a linear glue track 6 and up to an amount of 100 g per 500 meters for a flat glue track 6. After the glue line 6 has been applied to the wrapping strip 1, the roller 4 is cleaned again in the movement of the wrapping strip 1, which can also be seen because the layer thickness of the glue on the roller 4 is considerably thinner in this section. This makes it possible to avoid the so-called "glue nose" on the nozzle 2 that previously occurred.

Außerdem wird der Leim durch das Verreiben auf dem Umhüllungsstreifen 1 erheblich gleichmäßiger hinsichtlich der Breite und der Dicke der Leimspur 6 auf den Umhüllungsstreifen 1 aufgetragen, als dies mit der bisher verwendeten Lösung des direkten Auftragens der Leimspur 6 über die Düse 2 möglich war, so dass anschließend nach dem Verkleben der Lagen des Umhüllungsstreifens 1 eine erheblich festere Leimnaht mit einer größeren Klebkraft vorliegt. Die größere Klebkraft wird dadurch erzielt, indem der Leim vollständig zu einer Verbundschicht zwischen die Fasern des Umhüllungsstreifens 1 für die Verklebung genutzt wird. Dadurch entsteht beim anschließenden Verkleben der Lagen eine möglichst homogene Verbundschicht von Fasern der miteinander verklebten Lagen des Umhüllungsstreifens 1 mit dazwischen eingelagerten Leimanteilen. Diese homogene Verbundschicht führt zu einer erhöhten Klebkraft, da eine ausschließlich aus Leim bestehende Schicht mit einer erfahrungsgemäß geringeren Klebkraft nicht mehr vorhanden ist. In diesem Fall führt die Verwendung von weniger Leim zu einer höheren Klebkraft und zu einer geringeren Verschmutzung der Maschine. Für den Fall, dass die Leimnaht aus Kaltleim mit einer ausschließlich aus Leim bestehenden Schicht gebildet ist, welche anschließend an einem Heizsteg vorbeigeführt und ausgehärtet wird, besteht außerdem die Gefahr, dass das Wasser in der Leimmasse beim Aushärten an dem Heizsteg in der Leimmasse verdampft und dadurch kleine Hohlräume bildet. Diese Hohlräume bilden dann jeweils Unterbrechungen der Klebenaht und verringern die Klebkraft, indem die Klebenaht unter Belastung in einer durch die Hohlräume verlaufenden Aufreißlinie aufreißt. Da durch die erfindungsgemäße Lösung die Leimnaht sehr viel kontrollierter aufgetragen wird und dadurch eine ausschließlich aus Leimmasse bestehende Schicht in der Klebenaht vermieden werden kann, kann die Klebkraft im Ergebnis durch die erfindungsgemäße Lösung erhöht werden.In addition, by rubbing the glue onto the wrapping strip 1, the width and thickness of the glue line 6 are applied to the wrapping strip 1 much more evenly than was possible with the previously used solution of directly applying the glue line 6 via the nozzle 2, so that after the layers of the wrapping strip 1 have been glued together, a much stronger glue seam with a greater adhesive strength is obtained. The greater adhesive strength is achieved by using the glue completely to form a composite layer between the fibers of the wrapping strip 1 for the bonding. This creates a composite layer that is as homogeneous as possible of fibers from the layers of the wrapping strip 1 that are glued together, with glue particles embedded in between. This homogeneous composite layer leads to an increased adhesive strength, since a layer consisting exclusively of glue with a lower adhesive strength, as experience has shown, is no longer present. In this case, the use of less glue leads to a higher adhesive strength and less contamination of the machine. In the event that the glue seam is made of cold glue with a layer consisting exclusively of glue, which is then passed past a heating bar and hardened, there is also the risk that the water in the glue mass will evaporate on the heating bar in the glue mass as it hardens, thereby forming small cavities. These cavities then form interruptions in the glue seam and reduce the adhesive strength by the glue seam tearing open under load in a tear line running through the cavities. Since the glue seam is applied in a much more controlled manner using the solution according to the invention and a layer consisting exclusively of glue in the glue seam can therefore be avoided, the adhesive strength can ultimately be increased using the solution according to the invention.

Insbesondere kann durch die Vorrichtung eine sehr gleichmäßige Leimnaht mit einer im Wesentlichen konstanten Dicke und einer gleichbleibend hohen Klebkraft auch bei sehr hohen Stranggeschwindigkeiten erzielt werden. Dies liegt daran, dass die Leimnaht durch das Auftragen auf die Walze 4 vor dem Auftragen auf den Umhüllungsstreifen 1 zunächst auf eine größere Breite mit einer konstanteren Dicke verrieben wird, und erst dann von der Walze 4 auf den Umhüllungsstreifen 1 aufgetragen wird.In particular, the device can produce a very uniform glue seam with a substantially constant thickness and a consistently high adhesive strength even at very high strand speeds. This is because the glue seam is first rubbed to a larger width with a more constant thickness by being applied to the roller 4 before being applied to the wrapping strip 1, and only then is it applied to the wrapping strip 1 by the roller 4.

In der Figur 2 ist die Walze 4 mit einem auf die Walze 4 gerichteten Abstreifteil 7 und zwei möglichen Ausrichtungen einer Düse 2 zu erkennen. Das Abstreifteil 7 ist in Richtung der Drehbewegung der Walze 4 nach der Düse 2 und vor dem Umhüllungsstreifen 1 angeordnet, so dass eine Stelle der Oberfläche der Walze 4 zuerst die feststehende Düse 2 dann das Abstreifteil 7 und schließlich den Umhüllungsstreifen 1 passiert. Die Düse 2 ist entweder so ausgerichtet, dass der austretende Leim direkt von oben auf die Walze 4 auftrifft oder in den Zwischenraum zwischen die Walze 4 und das Abstreifteil 7 eintritt.In the Figure 2 the roller 4 can be seen with a stripping part 7 directed towards the roller 4 and two possible orientations of a nozzle 2. The stripping part 7 is arranged in the direction of the rotation of the roller 4 after the nozzle 2 and before the wrapping strip 1, so that a point on the surface of the roller 4 first passes the fixed nozzle 2, then the stripping part 7 and finally the wrapping strip 1. The nozzle 2 is either aligned so that the escaping glue hits the roller 4 directly from above or enters the space between the roller 4 and the stripping part 7.

Das Abstreifteil 7 ist mit der nur in den nachfolgenden Figuren zu erkennenden Abstreifkante 8 in einem vorbestimmten Abstand zu der Oberfläche der Walze 4 angeordnet. Der Leim wird dann durch die Drehbewegung der Walze 4 abtransportiert und an dem Abstreifteil 7 zu einem Leimreservoir 9 aufgestaut. Aufgrund des vorbestimmten Abstandes der Abstreifkante 8 zu der Walze 4 kann ein Teil des Leims durch den Spalt zwischen der Abstreifkante 8 und der Oberfläche der Walze 4 abtransportiert werden. Dadurch wird auf dem Abschnitt der Oberfläche der Walze 4 zwischen dem Abstreifteil 7 und dem Umhüllungsstreifen 1 eine Leimspur 6 gebildet, welche eine dem Abstand der Abstreifkante 8 von der Walze 4 entsprechende Dicke aufweist. Diese Leimspur 6 mit der definierten Dicke wird dann als Leimspur 6 auf den Umhüllungsstreifen 1 aufgetragen.The stripping part 7 is arranged with the stripping edge 8, which can only be seen in the following figures, at a predetermined distance from the surface of the roller 4. The glue is then transported away by the rotational movement of the roller 4 and accumulated on the stripping part 7 to form a glue reservoir 9. Due to the predetermined distance of the stripping edge 8 from the roller 4, part of the glue can be transported away through the gap between the stripping edge 8 and the surface of the roller 4. This forms a glue track 6 on the section of the surface of the roller 4 between the stripping part 7 and the wrapping strip 1, which has a thickness corresponding to the distance of the stripping edge 8 from the roller 4. This glue track 6 with the defined thickness is then applied as glue track 6 to the wrapping strip 1.

Das Abtreifteil 7 dient durch die Anordnung und Formgebung der Abstreifkante 8 der aktiven Formgebung der auf der Walze 4 gebildeten Leimspur 6 und außerdem zur Bildung des Leimreservoirs 9 als Zwischenspeicher des Leimes auf der Walze 4. Das Abstreifteil 7 ist durch eine zu der Walze 4 schräg angestellte Platte gebildet und wird mittels einer geeigneten Haltevorrichtung an der übergeordneten Vorrichtung gehalten. Das Abstreifteil 7 ist als ein von der Düse 2 unabhängiges Teil ausgebildet und kann als solches individuell zur Bildung der Leimspur 6 angeordnet und ausgerichtet werden. Anders ausgedrückt kann die Düse 2 wiederum entsprechend der konstruktiven Randbedingungen zum Auftrag des Leimes auf die Walze 4 unabhängig von dem Abstreifteil 7 angeordnet und ausgerichtet werden. Der Leimauftrag und die Formgebung der Leimspur 6 finden praktisch an voneinander unabhängigen Stellen des Umfanges der Walze 4 statt, und die Düse 2 und das Abstreifteil 7 können unabhängig voneinander geformt, angeordnet und ausgerichtet werden.The stripping part 7 serves, through the arrangement and shape of the stripping edge 8, for the active shaping of the glue track 6 formed on the roller 4 and also for the formation of the glue reservoir 9 as an intermediate storage of the glue on the roller 4. The stripping part 7 is formed by a plate that is inclined to the roller 4 and is held to the higher-level device by means of a suitable holding device. The stripping part 7 is designed as a part independent of the nozzle 2 and as such can be arranged and aligned individually to form the glue track 6. In other words, the nozzle 2 can in turn be arranged and aligned independently of the stripping part 7 in accordance with the structural boundary conditions for applying the glue to the roller 4. The glue application and the shaping of the glue track 6 practically take place at mutually independent points on the circumference of the roller 4, and the nozzle 2 and the stripping part 7 can be shaped, arranged and aligned independently of one another.

In der Figur 3 ist eine alternative Ausführungsform des Abstreifteils 7 zu erkennen, welches um eine Drehachse 12 verstellbar ist. Das Abstreifteil 7 ist in einer Schnittebene senkrecht zu seiner Drehachse 12 als Mehrkantprofil, in diesem Fall als Sechskantprofil ausgebildet und mit einer Abstreifkante 8 in einem Abstand zu der Walze 4 angeordnet. Das Abstreifteil 7 weist ebenso wie die Walze 4 eine in Richtung ihrer Drehachsen 11 und 12 konstante Außenform auf. Ferner ist das Abstreifteil 7 so ausgerichtet, dass die Drehachse 12 des Abstreifteils 7 parallel zu der Drehachse 11 der Walze 4 ausgerichtet ist. Dadurch ergibt sich ein sich in Richtung der Drehachsen 11 und 12 nicht verändernder Abstand der Abstreifkante 8 des Abstreifteiles 7 zu der Walze 4. Der Vorteil dieser Lösung ist darin zu sehen, dass der Abstand zwischen der Abstreifkante 8 und der Walze 4 sehr einfach durch eine Verdrehung des Abstreifteiles 7 um seine Drehachse 12 kontinuierlich verändert und eingestellt werden kann.In the Figure 3 an alternative embodiment of the stripping part 7 can be seen, which is adjustable about a rotation axis 12. The stripping part 7 is designed as a polygonal profile, in this case as a hexagonal profile, in a cutting plane perpendicular to its rotation axis 12 and is arranged with a stripping edge 8 at a distance from the roller 4. The stripping part 7, like the roller 4, has a constant external shape in the direction of its rotation axes 11 and 12. Furthermore, the stripping part 7 is aligned such that the rotation axis 12 of the stripping part 7 is aligned parallel to the rotation axis 11 of the roller 4. This results in a distance between the stripping edge 8 of the stripping part 7 and the roller 4 that does not change in the direction of the rotation axes 11 and 12. The advantage of this solution is that the distance between the stripping edge 8 and the roller 4 can be continuously changed and adjusted very easily by rotating the stripping part 7 about its rotation axis 12.

In den Figuren 4 und 5 ist jeweils eine Walze 4 mit einem Abstreifteil 7 und drei Düsen 2 bzw. drei dadurch erzeugten Leimreservoirs 9 zu erkennen. Durch das Vorsehen von mehreren Düsen 2 können Leimspuren 6 mit einer breiteren Geometrie oder auch mehrere Leimspuren 6 erzeugt werden. Ferner können dadurch auch mit einer Walze 4 jeweils eine Leimspur 6 auf mehrere verschiedene Umhüllungsstreifen 1 aufgetragen werden.In the Figures 4 and 5 a roller 4 with a stripping part 7 and three nozzles 2 or three glue reservoirs 9 produced thereby can be seen. By providing several nozzles 2, glue tracks 6 with a wider geometry or several glue tracks 6 can be produced. Furthermore, one glue track 6 can be applied to several different wrapping strips 1 with one roller 4.

In der Figur 6 ist ein vergrößerter Ausschnitt der Walze 4 mit dem Abstreifteil 7 zu erkennen. Das Abstreifteil 7 ist mit der Abstreifkante 8 auf die Oberfläche 18 der Walze gerichtet und derart angeordnet, dass zwischen der Abstreifkante 8 und der Oberfläche 18 der Walze 4 ein Spalt S vorhanden ist. Das Abstreifteil 7 weist eine Dicke von wenigstens 0,01 mm auf und ist so ausgerichtet, dass der Winkel W zwischen der von dem Leimreservoir 9 abgewandten Oberfläche 17 des Abstreifteils 7 und der Oberfläche 18 der Walze 4 wenigstens 20 Grad beträgt. Das Abstreifteil 7 kann ferner durch eine geeignete Antriebseinrichtung zur Realisierung unterschiedlicher Winkel W und Abstände zu der Walze 4 verstellt werden.In the Figure 6 an enlarged section of the roller 4 with the stripping part 7 can be seen. The stripping part 7 is directed with the stripping edge 8 towards the surface 18 of the roller and is arranged such that a gap S is present between the stripping edge 8 and the surface 18 of the roller 4. The stripping part 7 has a thickness of at least 0.01 mm and is aligned such that the angle W between the surface 17 of the stripping part 7 facing away from the glue reservoir 9 and the surface 18 of the roller 4 is at least 20 degrees. The stripping part 7 can also be adjusted by a suitable drive device to realize different angles W and distances from the roller 4.

Ferner ist die Abtreifkante 8 des Abstreifteils 7 an der von dem Leimreservoir 9 abgewandten Seite auf eine Maß D von maximal 0,1 mm entgratet, so dass die Abtreifkante 8 an dieser Seite eine Schärfe aufweist, durch welche sichergestellt wird, dass sich die in dem Spalt S zwischen der Abstreifkante 8 und der Oberfläche 18 der Walze 4 geformte Leimspur 6 nicht nach dem Verlassen des Spaltes S wieder aufweitet.Furthermore, the stripping edge 8 of the stripping part 7 is deburred on the side facing away from the glue reservoir 9 to a dimension D of a maximum of 0.1 mm, so that the stripping edge 8 has a sharpness on this side, which ensures that the glue track 6 formed in the gap S between the stripping edge 8 and the surface 18 of the roller 4 does not widen again after leaving the gap S.

In der Figur 8 sind verschiedene Abstreifteile 7 mit verschiedenen Geometrien und Ausrichtungen zu der Walze 4 zu erkennen, welche einzeln oder auch in Kombination zur Formgebung der Leimspur 6 verwendet werden können. Dabei kann die Abstreifkante 8 auch die Vorderkante einer der Walze 4 zugewandten Abstreiffläche 19 eines Abstreifteils 7 sein. Die Abstreiffläche 19 des Abstreifteils 7 ist dann bevorzugt als Negativfläche zu der Oberfläche 18 der Walze 4 gebildet, so dass zwischen der Abstreiffläche 19 des Abstreifteils 7 und der Oberfläche der Walze 4 ein Spalt S mit einer in Drehrichtung der Walze 4 konstanten Spaltweite gebildet wird, in dem die Leimspur 6 geformt wird.In the Figure 8 Various stripping parts 7 with different geometries and orientations to the roller 4 can be seen, which can be used individually or in combination to form the glue track 6. The stripping edge 8 can also be the front edge of a stripping surface 19 of a stripping part 7 facing the roller 4. The stripping surface 19 of the stripping part 7 is then preferably formed as a negative surface to the surface 18 of the roller 4, so that between the stripping surface 19 of the stripping part 7 and the surface of the roller 4 a gap S with a constant gap width in the direction of rotation of the roller 4 is formed, in which the glue track 6 is formed.

In der Figur 9 ist eine Walze 4 mit mehreren Abstreifteilen 7 in verschiedenen Positionen und Ausrichtungen zu erkennen, welche zum Auftrag des Leims und zur Bildung der Leimspur 6 auf der Walze 4 einzeln oder in Kombination vorgesehen werden können.In the Figure 9 a roller 4 with several stripping parts 7 in different positions and orientations can be seen, which can be provided individually or in combination for applying the glue and for forming the glue track 6 on the roller 4.

In der Figur 10 sind zwei weitere Ausführungsbeispiele der Erfindung zu erkennen, bei denen das Abstreifteil 7 als eine Art Schalenteil geformt ist, welches eine sich in Drehrichtung der Walze 4 an die Abstreifkante 8 anschließende Abstreiffläche 19 mit einer teilkreisförmigen Formgebung nach Art einer Halbschale aufweist. Der Radius der Abstreiffläche 19 ist geringfügig größer als der Radius der Walze 4 bemessen. Ferner ist die Abstreiffläche 19 so geformt, dass sie konzentrisch zu der Walze 4 ausgebildet ist, so dass zwischen der Abstreiffläche 19 des Abstreifteils 7 und der Walze 4 ein Formgebungskanal mit einer in Drehrichtung der Walze 4 konstanten Spaltweite S gebildet ist. Das Abstreifteil 7 erstreckt sich dabei, wie in der rechten Darstellung erkennbar ist, über einen Umfangsabschnitt von bis zu 180 Grad der Walze 4.In the Figure 10 Two further embodiments of the invention can be seen in which the stripping part 7 is shaped as a kind of shell part, which has a stripping surface 19 adjoining the stripping edge 8 in the direction of rotation of the roller 4 with a partially circular shape in the manner of a half-shell. The radius of the stripping surface 19 is slightly larger than the radius of the roller 4. Furthermore, the stripping surface 19 is shaped so that it is concentric with the roller 4, so that a shaping channel with a gap width S that is constant in the direction of rotation of the roller 4 is formed between the stripping surface 19 of the stripping part 7 and the roller 4. The stripping part 7 extends, as can be seen in the right-hand illustration, over a circumferential section of up to 180 degrees of the roller 4.

In der Figur 11 ist ein weiteres Ausführungsbeispiel zu erkennen, bei dem das Abstreifteil 7 durch eine Auffangschale gebildet ist, in welcher sich der Leim sammelt. Die Auffangschale weist eine auf die Walze 4 gerichtete Abstreifkante 8 auf, welche an einer sich in Richtung der Walze 4 erstreckenden Randseite 20 der Auffangschale angeordnet ist.In the Figure 11 A further embodiment can be seen in which the stripping part 7 is formed by a collecting tray in which the glue collects. The collecting tray has a stripping edge 8 directed towards the roller 4, which is arranged on an edge side 20 of the collecting tray extending in the direction of the roller 4.

In der Figur 12 ist das Ausführungsbeispiel mit dem als Sechskantprofil ausgebildeten Abstreifteil 7 nochmals vergrößert dargestellt. Das Abstreifteil 7 ist so ausgerichtet, dass eine der Kanten eine Abstreifkante 8 bildet und in einem definierten Abstand zu der Walze 4 angeordnet ist.In the Figure 12 the embodiment with the stripping part 7 designed as a hexagonal profile is shown again enlarged. The stripping part 7 is aligned such that one of the edges forms a stripping edge 8 and is arranged at a defined distance from the roller 4.

In der Figur 13 sind drei verschiedene Abstreifteile 7 mit jeweils einer Walze 4 zu erkennen. In der oberen Darstellung entspricht die Breite C des Abstreifteiles 7 der Breite der Leimspur 6, während in der mittleren Darstellung die Breite C größer und in der unteren Darstellung kleiner als die Breite der Leimspur 6 ist. Das Abstreifteil 7 sollte eine Breite C haben, welche größer oder maximal 1,0 mm schmaler als die Breite der aufzutragenden Leimspur 6 ist. Die Breite der aufzutragenden Leimspur 6 ist vorgegeben und kann durch die Bemessung der durch die Düse 2 aufgetragenen Leimmenge pro Zeiteinheit, durch die Spaltweite S zwischen der Abstreifkante 8 und der Oberfläche 18 der Walze 4 und der Drehzahl der Walze 4 eingestellt werden. Sofern die Breite C des Abstreifteils 7 kleiner als die Breite der Leimspur 6 auf der Walze 4 ist, wird der Leim zu einer konkaven Oberfläche auf der Walze 4 geformt und schließlich zu einer breiteren Leimspur 6 auf dem Umhüllungsstreifen 1 verrieben.In the Figure 13 three different stripping parts 7, each with a roller 4, can be seen. In the upper illustration, the width C of the stripping part 7 corresponds to the width of the glue track 6, while in the middle illustration the width C is larger and in the lower illustration it is smaller than the width of the glue track 6. The stripping part 7 should have a width C which is larger or a maximum of 1.0 mm narrower than the width of the glue track 6 to be applied. The width of the glue track 6 to be applied is predetermined and can be adjusted by measuring the amount of glue applied by the nozzle 2 per unit of time, by the gap width S between the stripping edge 8 and the surface 18 of the roller 4 and the speed of the roller 4. If the width C of the stripping part 7 is smaller than the width of the glue track 6 on the roller 4, the glue is formed into a concave surface on the roller 4 and finally rubbed into a wider glue track 6 on the wrapping strip 1.

In der Figur 14 ist ein Ausführungsbeispiel zu erkennen, bei dem das Abstreifteil 7 eine in Richtung der Drehachse 11 der Walze 4 schräg zulaufende Abstreifkante 8 aufweist, so dass auf der Walze 4 eine konische Leimspur 6 mit einer in Richtung ihrer Breite abnehmenden Dicke gebildet wird.In the Figure 14 an embodiment can be seen in which the stripping part 7 has a stripping edge 8 which tapers obliquely in the direction of the axis of rotation 11 of the roller 4, so that a conical glue track 6 with a thickness decreasing in the direction of its width is formed on the roller 4.

In der Figur 15 ist ein Abstreifteil 7 mit einer randseitig angeordneten radialen Vertiefung 13 zu erkennen. Durch die Vertiefung 13 wird eine stufenförmige Leimspur 6 gebildet, welche einen ersten Abschnitt 21 mit einer kleineren Dicke und einen zweiten Abschnitt 22 mit einer größeren Dicke aufweist. Der erste Abschnitt 21 mit der kleineren Dicke kann z.B. eine auch als Innenleimabschnitt bezeichnete, zur Verklebung dienende Grundfläche sein, während der zweite Abschnitt 22 mit der größeren Dicke den zur Randseite des Umhüllungsstreifens 1 zugewandten Nahtabschnitt mit einer größeren Klebkraft bildet.In the Figure 15 a stripping part 7 with a radial recess 13 arranged on the edge can be seen. The recess 13 forms a step-shaped glue track 6 which has a first section 21 with a smaller thickness and a second section 22 with a larger thickness. The first section 21 with the smaller thickness can be, for example, a base area also referred to as an inner glue section, used for bonding, while the second section 22 with the larger thickness forms the seam section facing the edge of the wrapping strip 1 with a greater adhesive strength.

In der Figur 16 ist eine weitere Ausführungsform zu erkennen, bei der das Abstreifteil 7 mit zwei mittig angeordneten Vertiefungen 13 versehen ist, so dass die Leimspur 6 zwei Abschnitte 23 mit einer größeren Dicke und drei Abschnitte 24 mit einer kleineren Dicke aufweist. Die Abschnitte 24 sind aufgrund der kleineren Dicke schnelltrocknend, während die Abschnitte 23 mit der größeren Dicke langsam trocknend sind.In the Figure 16 A further embodiment can be seen in which the stripping part 7 is provided with two centrally arranged depressions 13, so that the glue track 6 has two sections 23 with a greater thickness and three sections 24 with a smaller thickness. The sections 24 are quick-drying due to the smaller thickness, while the sections 23 with the greater thickness are slow-drying.

In der Figur 17 ist ein Ausführungsbeispiel mit einem Abstreifteil 7 mit einer geraden Abstreifkante 8 und einer Walze 4 zu erkennen, bei dem in der Walze 4 eine Vertiefung 13 und zusätzlich eine Erhöhung 14 vorgesehen ist. Die Vertiefung 13 ist hier als eine umlaufende Nut und die Erhöhung 14 als umlaufender Absatz ausgebildet. Dadurch kann eine Leimspur 6 mit einem Grundabschnitt 25 mit einer konstanten Dicke und einem gegenüber dem Grundabschnitt 25 dünneren ersten Abschnitt 26 und einem dickeren zweiten Abschnitt 27 gebildet werden.In the Figure 17 an embodiment with a stripping part 7 with a straight stripping edge 8 and a roller 4 can be seen, in which a recess 13 and an additional elevation 14 are provided in the roller 4. The recess 13 is designed here as a circumferential groove and the elevation 14 as a circumferential shoulder. This makes it possible to form a glue track 6 with a base section 25 with a constant thickness and a first section 26 that is thinner than the base section 25 and a thicker second section 27.

Im Allgemeinen können durch die Vertiefungen 13 und die Erhöhungen 14 Leimspuren 6 mit Abschnitten unterschiedlicher Dicke verwirklicht werden, wobei für den Fall, dass die Vertiefungen 13 und die Erhöhungen 14 in der Walze 4 nicht umlaufend ausgebildet sind, auch Leimspuren 6 mit in Längsrichtung rhythmisch unterbrochenen dickeren und dünneren Abschnitten verwirklicht werden können. In general, glue tracks 6 with sections of different thickness can be realized by means of the depressions 13 and the elevations 14, wherein in the event that the depressions 13 and the elevations 14 in the roller 4 are not formed circumferentially, glue tracks 6 with thicker and thinner sections rhythmically interrupted in the longitudinal direction can also be realized.

Claims (10)

  1. Device for applying a glue track (6) to a movable covering strip (1) of a rod-shaped product of the tobacco processing industry, having
    - a nozzle (2) which is fixed with respect to the covering strip (1) during the application of the glue track (6), wherein
    - a roller (4) which is rotationally drivable by means of a driving device is provided between the covering strip (1) and the outlet opening (3) of the nozzle (2), the glue being applied to said roller by means of the nozzle (2),
    and wherein the roller (4) applies the glue in the form of the glue track (6) directly to the covering strip (1),
    characterised in that
    - a stripping member (7) directed at the roller (4) is provided in the direction of rotation of the roller (4) between the nozzle (2) and the covering strip (1), said stripping member being at a distance from the roller (4), and
    - the stripping member (7) is at a distance of 0.01 to 0.1 mm from the roller (4).
  2. Device according to Claim 1, characterised in that
    - the distance between the stripping member (7) and the roller (4) is modifiable.
  3. Device according to any one of the preceding claims, characterised in that
    - the stripping member (7) is drivable in an oscillating manner by means of a driving device parallel to the rotational axis (11) of the roller (4).
  4. Device according to any one of the preceding claims, characterised in that
    - the stripping member (7) and/or the roller (4) in the surface which comes into contact with the glue has/have at least one cavity (13) and/or elevation (14).
  5. Device according to any one of the preceding claims, characterised in that
    - multiple stripping members (7) are provided, which are arranged distributed over the circumference of the roller (4).
  6. Device according to any one of the preceding claims, characterised in that
    - the stripping member (7) is formed on the surface (15) facing the roller (4) such that a gap (10) having a constant gap width (S) is formed in the direction of rotation of the roller (4) between the surface (16) of the roller (4) and the surface (15) of the stripping member (7) facing the roller (4).
  7. Device according to any one of the preceding claims, characterised in that
    - the stripping member (7) parallel to the rotational axis (11) of the roller (4) has a width (C) which is larger than or a maximum of 1.0 mm narrower than the width of the glue track (6) to be applied to the covering strip (1).
  8. Device according to any one of the preceding claims, characterised in that
    - a glue reservoir (9) lying in contact with the roller (4) is provided, which is entered by the glue exiting the nozzle (2) and which is delimited on one side by the stripping member (7).
  9. Device according to any one of the preceding claims, characterised in that
    - the stripping member (7) is aligned such that the edge side of the stripping member (7) arranged downstream in the direction of rotation of the roller (4) encloses an angle (W) of at least 20 degrees to the surface of the roller (4).
  10. Device according to any one of the preceding claims, characterised in that
    - the stripping member (7) is formed such that it is adjustable about a rotational axis (12), and
    - the stripping member (7) is aligned such that the rotational axis (12) is aligned parallel to the rotational axis (11) of the roller (4), and
    - the stripping member (7) is formed by a polygonal profile in a sectional plane perpendicular to its rotational axis (12).
EP17166539.1A 2016-04-20 2017-04-13 Device for applying a glue track to a covering strip of a rod-shaped product of the tobacco processing industry Active EP3235388B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17166539.1T PL3235388T5 (en) 2016-04-20 2017-04-13 Device for applying a glue track to a covering strip of a rod-shaped product of the tobacco processing industry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016107290.7A DE102016107290A1 (en) 2016-04-20 2016-04-20 Apparatus for applying a glue trace to a wrapping strip of a rod-shaped product of the tobacco processing industry

Publications (3)

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EP3235388A1 EP3235388A1 (en) 2017-10-25
EP3235388B1 EP3235388B1 (en) 2019-02-06
EP3235388B2 true EP3235388B2 (en) 2024-09-25

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CN (1) CN107303011A (en)
DE (1) DE102016107290A1 (en)
PL (1) PL3235388T5 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3749116B1 (en) * 2018-02-08 2022-01-19 Philip Morris Products S.A. Adhesive application roller
CN110026317A (en) * 2019-05-09 2019-07-19 东莞市翔奕机械制造有限公司 Slurry coating device
CN110815945B (en) * 2019-12-04 2024-05-10 昆山金红凯包装制品有限公司 Defeated gluey mechanism of plastering
DE102020102744A1 (en) 2020-02-04 2021-08-05 Hauni Maschinenbau Gmbh Manufacturing machine for the manufacture of rod-shaped products from an endless strand of a strip glued to form a tube
DE102023110217A1 (en) * 2023-04-21 2024-10-24 Homag Gmbh Device for selectively applying adhesives, method for coating workpieces, coated workpiece and use thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929352A (en) † 1957-06-27 1960-03-22 American Mach & Foundry Casein paster gate improvements
DE1241742B (en) † 1962-07-31 1967-06-01 Hauni Werke Koerber & Co Kg Rod cigarette machine or the like.
US3447508A (en) † 1967-07-13 1969-06-03 Specialty Equipment Corp Carton blank gluing apparatus
US4009657A (en) † 1975-02-25 1977-03-01 Scott Paper Company Apparatus for applying fluid to an intaglio roll for transfer to a soft, absorbent fibrous web
DE4036726A1 (en) † 1990-11-17 1992-05-21 Hauni Werke Koerber & Co Kg Coating appliance - has stripper device with two doctor knives, with upstream knife having inlet gap allowing glue passage
DE102013111625A1 (en) † 2013-10-22 2015-04-23 Khs Gmbh Glue scraper, gluing device with the glue scraper and labeling unit with gluing device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713278A1 (en) * 1986-04-30 1987-11-05 Will E C H Gmbh & Co Process and device for applying a flowable composition onto a web
DE4309951A1 (en) * 1993-03-26 1994-09-29 Hauni Werke Koerber & Co Kg Glue application device
DE19853833A1 (en) 1998-11-21 2000-05-25 Hauni Maschinenbau Ag Method and arrangement for gluing a wrapping strip for a filler in the tobacco processing industry
DE102009007590A1 (en) * 2009-02-05 2010-09-09 Hauni Maschinenbau Ag Gluing of strips of material of the tobacco processing industry
CN103892440B (en) * 2014-03-07 2015-03-18 广东省金叶科技开发有限公司 Equipment for producing reconstituted tobacco through dry-method paper making method
DE102014213858B3 (en) * 2014-07-16 2015-11-12 Hauni Maschinenbau Ag Apparatus for applying a glue trace to a wrapping strip of a rod-shaped product of the tobacco processing industry

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929352A (en) † 1957-06-27 1960-03-22 American Mach & Foundry Casein paster gate improvements
DE1241742B (en) † 1962-07-31 1967-06-01 Hauni Werke Koerber & Co Kg Rod cigarette machine or the like.
US3447508A (en) † 1967-07-13 1969-06-03 Specialty Equipment Corp Carton blank gluing apparatus
US4009657A (en) † 1975-02-25 1977-03-01 Scott Paper Company Apparatus for applying fluid to an intaglio roll for transfer to a soft, absorbent fibrous web
DE4036726A1 (en) † 1990-11-17 1992-05-21 Hauni Werke Koerber & Co Kg Coating appliance - has stripper device with two doctor knives, with upstream knife having inlet gap allowing glue passage
DE102013111625A1 (en) † 2013-10-22 2015-04-23 Khs Gmbh Glue scraper, gluing device with the glue scraper and labeling unit with gluing device

Also Published As

Publication number Publication date
CN107303011A (en) 2017-10-31
DE102016107290A1 (en) 2017-10-26
EP3235388A1 (en) 2017-10-25
EP3235388B1 (en) 2019-02-06
PL3235388T3 (en) 2019-07-31
PL3235388T5 (en) 2024-12-23

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