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WO2015071839A1 - Appareil et procédé de fourniture de matériau en bande pour moussage de panneaux - Google Patents

Appareil et procédé de fourniture de matériau en bande pour moussage de panneaux Download PDF

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Publication number
WO2015071839A1
WO2015071839A1 PCT/IB2014/065990 IB2014065990W WO2015071839A1 WO 2015071839 A1 WO2015071839 A1 WO 2015071839A1 IB 2014065990 W IB2014065990 W IB 2014065990W WO 2015071839 A1 WO2015071839 A1 WO 2015071839A1
Authority
WO
WIPO (PCT)
Prior art keywords
web materials
reel
web
tail ends
tail
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.)
Ceased
Application number
PCT/IB2014/065990
Other languages
English (en)
Inventor
Marco VOLPATO
Maurizio Corti
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.)
Cannon SpA
Original Assignee
Cannon SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cannon SpA filed Critical Cannon SpA
Publication of WO2015071839A1 publication Critical patent/WO2015071839A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4601—Splicing special splicing features or applications
    • B65H2301/46017—Splicing special splicing features or applications involving several layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/35—Other elements with suction surface, e.g. plate or wall
    • B65H2406/351—Other elements with suction surface, e.g. plate or wall facing the surface of the handled material

Definitions

  • the present invention relates to a method and an apparatus for feeding web material for foaming of panels, in particular for simultaneously feeding at least two web materials intended for correspondingly defining external layers of one or more panels obtained by a foaming process, using a polyurethane or phenolic mixture.
  • panels having an intermediate layer of insulating material in particular an intermediate layer of insulating material in expanded polyurethane, and a pair of external coating layers, for example made of paper, and/or of nonwoven fabric of vegetable or artificial fibre or a sheet of plastics often coated with a thin metallic reflective layer or a sheet of sheet metal that is studded, corrugated or provided with another surface profile.
  • Such panels are for example used for thermal and/or acoustic insulation of walls of buildings and room that are thermally conditioned or for conduits of conditioned air.
  • the aforesaid external coating layers have the function of containing the expanding polyurethane foam during the process of obtaining, and the function of constituting the protective external surfaces of the polyurethane foam that, in the absence of such layers, would have a porous and friable surface.
  • Such external coating layers are intended, on one side of the panel, to be exposed towards the external environment, and on the other side of the panel, are intended to come into contact with the walls of the building. For this reason, in most cases, the two coating layers of the panel are different from one another, or have different features/properties because they, each, have to meet specific requirements (e.g. breathability capacity in a direction inside the building, surface affinity that permits good adhesion to the wall, etc).
  • a plant of this type comprises a pair of horizontal belt conveyors, i.e. a lower conveyor and an upper conveyor, that are spaced apart from one another to bound a foaming area extending horizontally along the advancement direction.
  • the intermediate layer of the panel is obtained with a foaming process that provides dispensing a reactive polyurethane mixture that is suitable for forming the foam in the aforesaid foaming area defined between the two conveyors.
  • the two aforesaid external coating layers of the panel are obtained by unwinding respectively a first lower web material from a first reel, and a second upper web material from a second reel. Two distinct reels are thus provided each of which provides a single respective web material intended to generate a single corresponding coating layer of the panel.
  • a dedicated device for supporting and unwinding a single reel.
  • a stand-by reel is associated that replaces the reel in use when the latter is almost finished in order to obtain continuity from the foaming process to avoid undesired machine downtime.
  • a cutting and joining device is provided, that cuts the tail ends of the web getting exhausted and the head ends of the new web, to head and join said two ends.
  • the upper and lower belt conveyors guide, by contrasting the thrust of the foam, and maintain in position the respective layers of web material intended to form the external surfaces of the panels.
  • Such two layers of web material thus, in the foaming area, respectively define an upper surface and a lower surface facing one another.
  • a dispensing distributor dispenses on the first, lower, web material, a layer of polyurethane or phenolic mixture that progressively expands freely until the resulting polyurethane or phenolic foam comes into contact with and adheres to the second upper web material that moves parallel with and at the same speed of the first web material that is below and spaced apart, so as to obtain progressively a single continuous semifinished product.
  • the expanding polyurethane or phenolic mixture is laterally contained by folding upwards the two opposite edges of the first continuous web material made of paper or plastics or another flexible material; the aforesaid two opposite edges are held in position folded upwards by suitable side elements fixed to the tiles or by means of webs of plastics unwound from side lateral reels and kept in shape by side belts or chains.
  • each coating layer of the panel is provided the use of a corresponding reel of web material with which a further stand-by reel is associated, of a respective supporting and unwinding device and of the respective cutting and joining device. It is necessary to ensure that the feeding of two web materials occurs in a mutually synchronised manner and at the same speed so that the panel is obtained in a suitable manner.
  • the configuration disclosed above thus entails structural and functional complexity and overall dimensions that increase significantly in proportion to the number of layers of web material that it is necessary to process.
  • a further object of the present invention is to provide a method and an apparatus for feeding several layers of web material to an apparatus for simultaneous foaming of two or more panels, object of Italian patent application MI2013A000316 and of Italian patent application MI2013A000866, filed respectively on 04 March 2013 and on 28 May 2013 both in the name of this same applicant.
  • a method for feeding web material for foaming of panels comprising the steps of:
  • an apparatus for feeding web material for foaming of panels comprising:
  • each multiple reel comprising a plurality of distinct web materials wound and superimposed on one another and arranged for generating respective external coating layers for one or more panels;
  • - dragging- stretching means configured for simultaneously stretching and dragging at a controlled speed the web materials along an advancement path and according to respective mutually parallel planes inside a foaming region in which said one or more panels are progressively and continuously obtained;
  • - accumulating means arranged for accumulating, for each finishing multiple reel, respective accumulation portions of the respective web materials in an accumulating station placed upstream of said foaming region with respect to said advancement path;
  • - holding means and cutting means configured for grasping and simultaneously holding the tail-end flaps of said accumulation portions in positions spaced apart from one another and configured for separating from the corresponding finishing multiple reel and simultaneously trimming said end flaps to generate tail ends that are ready for a splicing operation, said means being further configured for grasping and simultaneously holding in spaced positions the web materials of a stand-by multiple reel to replace said finishing reel and to trim the initial flaps thereof to obtain head ends ready to be joined to the respective tail ends;
  • joining means configured for transversely applying gluing materials or webs on the head ends and/or on the tail ends to be joined, or for activating biadhesive strips on said head ends and/or on said tail ends for each web material, said joining means being further configured for bringing the tail ends near the respective head ends and superimposing with pressure on, and joining the tail ends to the respective head ends so as to obtain a multiple junction and simultaneously connect said accumulation portions to the respective web materials of said stand-by multiple reel.
  • the method and the apparatus according to the invention enable the aforesaid objects to be achieved.
  • owing to the use of reels on each of which several layers of web material are wound, and owing to the possibility of making a simultaneous multiple junction between the finishing webs and the new webs managing several web materials is facilitated, ensuring continuity for the panel-foaming process, and above all significant reduction in the overall dimensions is achieved associated with a significant structural simplification in the plant, eliminating the redundancy of one or more devices.
  • Owing to the capacity to generate a multiple junction of the webs undesired slow-downs or temporary plant stops are avoided, and also the risk of possible web jams.
  • Figure 1 shows schematically a first embodiment of an apparatus for feeding web material according to the invention
  • Figure 2 is a top view of the apparatus in Figure 1 ;
  • Figures 3 and 4 show schematically respectively a device for stopping the webs by a vacuum and a presser device for stopping the webs, which are included in the apparatus according to the invention;
  • Figure 5 shows schematically a device for the multiple simultaneous cutting of the tail ends of the web materials of the reel that is getting exhausted and for the multiple simultaneous cutting of the head ends of the web materials unwound from a new multiple reel;
  • Figure 6 shows schematically an adhesive dispensing device for the ends of the web materials
  • Figure 7 shows schematically a second embodiment of an apparatus for feeding web material according to the invention.
  • Figure 8 is a top view of the apparatus in Figure 7;
  • Figures 9 and 10 show schematically respectively a third and a fourth embodiment of an apparatus for feeding web material according to the invention in which multilayered reels are visible that are arranged according to respective vertical axes;
  • FIGS 11 to 14 show schematically various operating steps of an apparatus according to the invention.
  • an apparatus 1 for feeding web material for foaming of insulating panels some embodiments are shown of an apparatus 1 for feeding web material for foaming of insulating panels.
  • the apparatus 1 according to the invention disclosed below is combinable with, i.e. can be used to feed, an apparatus for simultaneously foaming two or more panels, object of Italian patent application MI2013A000316 and of Italian patent application MI2013A000866, filed in the name of this same applicant.
  • panels of composite type i.e. comprising pairs of external layers of web material between which intermediate layers of expanded polyurethane or phenolic material are interposed.
  • the external coating layers are obtained from web materials that can comprise paper, plastics, nonwoven fabric of vegetable or artificial fibre, plastics coated with a thin reflective metal deposit, or any other type of flexible material or smooth, studded or ribbed sheet metal with thicknesses less than 1 mm.
  • the apparatus 1 extends according to an advancement path for the web materials that starts from a housing positioning zone for the reels and traverses in succession a joining station 20 and an accumulating station 8 included in the apparatus 1.
  • the accumulating station 8 is used to accumulate a certain quantity of web materials 4 to ensure continuity of feeding of the foaming apparatus during the multiple splicing operations of the web materials, in which the finished reels are replaced by new reels.
  • the accumulating station in one embodiment, better disclosed and shown in the figures, is of the type comprising roller devices that are suitably arranged and are movable towards one another to impose on the web materials 4 accumulating paths made with a series of multiple curves so as to define accumulation loops that are spaced apart from and are slidable in relation to one another.
  • the junction-cutting means is movable in the advancement direction of the web materials 4, in other words it is able to follow the latter by performing - in a movement that is synchronous with the advancement speeds of the webs - the cutting, trimming and splicing operations.
  • the accumulating station does not need return roller devices as in the previous case, but is simply represented by a space that extends in the longitudinal advancement direction and accommodates rectilinear extended portions of web material intended to act as accumulation portions.
  • the zones of the web materials 4 intended to undergo the splicing operation move like all the rest of the sheet material.
  • the cutting-joining means hook and prepare by trimming the head ends of the new reel, and grasp and prepare, by trimming, the tail-end-flaps of the finishing reel by which they are dragged during these operations. Continuity of feeding, and thus continuity of process, is assured by the free portions of sheet material that are gradually used up whilst the cutting-joining means follow advancing integrally with the web materials during the multiple splicing operation.
  • the apparatus 1 comprises supporting and unwinding means 2 that support a pair of multiple reels, in particular a first multiple reel 3A and a second multiple reel 3B.
  • the first multiple reel 3A in the schematised drawings, shows the reel currently in use, whereas the second multiple reel 3B acts as a stand-by multiple reel, i.e. it is used to replace the first multiple reel 3A once the latter finishes without causing any interruption to the panel-foaming process as disclosed below.
  • the multiple reels 3A, 3B can be prepared beforehand, with suitable off-line winders, superimposing and winding several distinct web materials on the same cylindrical core.
  • a multiple reel is used that comprises four web materials 4.
  • the web materials wound on the same multiple reel can all be of the same type, so as to coat each panel with the same type of material on both faces for example with layers of paper.
  • the web materials wound on the same multiple reel can also comprise materials of different type, so as to coat a face of each panel with a first type of web material, and the opposite face with a different sheet material.
  • the supporting and unwinding means 2 which are included in the feeding apparatus 1 support the first reel 3A and the second reel 3B according to respective mutually parallel axes arranged parallel to the advancement planes of the web materials 4.
  • the supporting and unwinding means 2 which are included in the feeding apparatus 1 can be made according to two possible configurations. According to a first configuration, shown in Figure 1, the supporting and unwinding means 2 are configured for supporting the first reel 3A and the second reel 3B in a stationary position.
  • the supporting and unwinding means 2 are of the tiltable type, i.e. rotatable by 180° around a hinging axis 19.
  • the supporting and unwinding means 2 can rotate from a first position in which the first reel 3A is in an advanced position, i.e. nearer an operating region 11 in which the joining station 20 is provided whereas the second reel 3B is in a retracted position, i.e. farther from the joining station 20, to a second position in which the positions of the two multiple reels 3A and 3B are switched, this occurring because the first multiple reel 3A is already finished.
  • the supporting and unwinding means 2 comprise an axial supporting spindle for each reel. With the supporting spindles expansion or opposite cone stopping devices are coupled that are driven to stop the cylindrical core of the reel on which the web materials 4 are wound.
  • the supporting spindles are motorized to obtain a web unwinding movement and are operationally connected in a correlated manner to dragging-stretching means 5 which are included in the apparatus 1 that are configured for simultaneously stretching and dragging at a controlled speed the web materials 4 along the advancement path.
  • the dragging-stretching means 5 are provided with a clutch or brake that, sliding, enables the distinct web materials 4, for example made of paper, to be pulled and dragged by the foaming apparatus located further downstream, permitting fine adjustment and synchronisation of the feed and advancement speed.
  • the spindles are removable from the respective supporting and unwinding means 2 to be able to be inserted into the core or heart of the new reel and thus be again placed on the line, in the apparatus 1.
  • the spindles have shaped supporting portions by means of which they can be hooked and easily raised for example by cranes or forklift trucks.
  • the web materials, unwound from the respective multiple reel, are supported and separated from one another by suitable separators 17 that can comprise separating planes on which slide the web materials, or a series of motorized rollers or belts or a series of idle or free rollers.
  • the initial ends of the webs of the new reel can be inserted into the aforesaid separators automatically or manually, whilst another reel is being wound continuously, thus avoiding having to interrupt the panel production process.
  • a sliding section for the web materials is provided in which is located the joining station 20 (which will be disclosed better below) and which, similarly to the preceding separating section, comprises sliding planes on which the web materials slide, or a series of motorized rollers or belts or a series of idle or free rollers, and stopping or holding means 10 operationally associated with multiple cutting means 12.
  • the apparatus 1 comprises, in the joining station 20, holding means 10 and cutting means 12.
  • the holding means 10 are configured for grasping, or hooking or pinching, and simultaneously holding some portions of the web materials 4 of the first reel 3A in a stationary position, or anyway in a relatively stationary position with respect to the initial flaps of the web materials of the second stand-by reel 3B.
  • the cutting means 12 are configured for separating such web materials from the corresponding multiple reel 3 A once it is finished so as to generate trimmed tail ends 13 ready for joining.
  • the holding means 10 and the cutting means 12 are further configured for grasping, or hooking or pinching, and simultaneously holding in a stationary position, (or relatively stationary with respect to the end-flaps of the web materials of the first reel 3A) and cutting the web materials 4 of the new multiple stand-by reel 3B to obtain corresponding trimmed head ends 14 to be coupled with the respective aforesaid tail ends 13.
  • the cutting means 12 are configured for cutting simultaneously the four, or other number, web materials from the reel 3A in use when it is already finished, thus separating such web materials 4 from the respective tail end connected to the reel core.
  • the corresponding tail ends 13 are thus generated that are suitably trimmed to be joined to the new web materials of the stand-by reel 3B.
  • the cutting means 12 act to cut and simultaneously trim the web materials 4 of the new multiple reel 3B.
  • the head ends 14 and the respective tail ends 13 are subsequently joined together by joining means 15 disclosed below.
  • a possible form of implementation of the cutting means 12 is disclosed below in a non-limiting manner.
  • the holding means 10 comprise a plurality of holding units for the web materials of the first reel 3A and as many holding units for the web materials of the second reel
  • the holding units 10 are arranged spatially in succession according to the advancement path and also separated, or spaced, both longitudinally and transversely to the advancement path.
  • the tail ends 13 are stopped in respective zones zl, z2, z3, z4, which are arranged spatially in succession, one after another, along the advancement path and are separated from one another transversely to the advancement path.
  • the head ends 14 are stopped in respective zones ⁇ , ⁇ 2' , ⁇ 3', ⁇ 4' , that are arranged spatially in succession, one after another, along the advancement path and separated, or spaced, in respect to one another in a direction that is transverse to the advancement path, as shown better in Figure 3. Owing to this configuration, each head end 14 faces the homologous tail end 13 and is thus ready to be joined to the latter.
  • the holding means 10 is of the air sucking type, i.e. configured to generate a certain degree of vacuum on the surface and to exploit this vacuum to hold and stop the head ends 14 and tail ends 13.
  • the holding means 10 can include a sucking fan, or another equivalent suitable means for generating and maintaining a depression inside the conduits connected to the surface of suitable drilled resting and holding plates for the respective web materials 4.
  • the holding means 10 comprise a movable presser device that includes clamping plates and flat pressing laminas 23, configured as a gripper, fork or tine. Between the two laminas or clamping plates of each pair a respective web material 4 is inserted transversely.
  • the four layers of web material are stopped in spaced positions along the feed direction.
  • the pressing laminas are configured suitably for being able to slide and be extracted transversely during a subsequent splicing operation.
  • the clamping plates can be coated with a non-stick or low friction coefficient material, whereas the clamping laminas can be coated in elastic material with good friction such as rubber.
  • pressing planes can be provided that are coated with a web that slides in a direction that is transverse to the advancement path of the web materials 4. Suitable projecting ridges on the clamping plates enable the head ends to be pressed against the respective tail ends on the lower laminas.
  • the cutting means 12 in particular can comprise a series of cutting blades 12A for the web materials 4 of the finishing reel 3A and a further series of cutting blades 12B for the web materials 4 of the new waiting reel 3B.
  • a slot can be provided that is arranged transversely to the advancement direction, in which a respective cutting blade of the web material slides.
  • the cutting means 12 comprises a movable frame on which the blades are mounted which can be of the knife type or of the rotating circular type.
  • the frame can translate to insert and extract transversely the cutting blades for both the upper and the lower web materials.
  • the cuts that are made on the web materials of the finishing reel 3A have to be spaced apart of one step along the feed direction, with respect to the cuts of the homologous web materials of the new reel 3B.
  • the possible single frame is movable, not only orthogonally, but also longitudinally to the feed direction of the sheets.
  • a suitable collecting grid provides to the collection of the scraps generated and dropped by the cutting means 12.
  • the apparatus 1 comprises joining means 15 configured for bringing the tail ends 13 near the respective head ends 14 and superimposing with pressure on, and joining the tail ends 13 to the respective head ends 14 so as to obtain a multiple junction and simultaneously connect the web materials 4 of the finishing reel 3A to the homologous web materials 4 of the new stand-by reel 3B.
  • the joining means 15 comprises applicating means, or spreading or distribution units 16 configured for applying a substance or a biadhesive strip to each tail end 13 and/or to the respective head end 14.
  • the joining means 15 includes a supporting structure that supports many spreading units to spread an adhesive substance or apply a biadhesive strip to the number of layers of paper to be joined.
  • the aforesaid supporting structure moves transversely to the feed direction to insert itself between the web materials and subsequently lower itself to the ends of the lower sheet materials. Subsequently, the supporting structure moves again in a transverse direction this time in an opposite direction so as to spread the adhesive substance between the fork pressing laminas whilst it progressively disengages from the web materials.
  • the joining means comprise activating means for activating an adhesive substance already previously present on the tail ends 13 and/or on the head ends 14.
  • the joining means 15 comprise electromagnetic induction welding means, configured for performing electrically induced welding by heating locally the interfaced joining zones.
  • the web materials 4, in this case, will be suitable to be welded by electroinduction, providing for example suitable materials, or substances or surface treatments.
  • the welding means act once that each head end 14 is in contact with the respective tail ends 13.
  • the joining means 15 further comprise presser- actuator means 18 configured for bringing the tail ends 13 near the respective head ends 14 and superimposing on, and pushing one against the other each tail ends 13 to the respective head ends 14, simultaneously for all the web materials 4.
  • the aforesaid accumulating station 8 located upstream of the foaming station 9 and downstream of the joining station 20, is provided that acts as an accumulation unit for the web materials 4.
  • the accumulating station 8 consists of movable multiple rollers 22.
  • the layers of paper, which are still separated from one another leaving the joining station 20, are joined again and accumulated on the various rollers arranged along a path, of "zigzag" type, that varies in direction.
  • the movable lower rollers create the loops necessary for compensating consumption and are pulled according to approach paths approximately upwards as the accumulation portions 7 are consumed.
  • further devices can be provided for unwinding strips of paper or another flexible material, intended for being applied to the narrow side faces of the panels, and the very least to the narrow lower faces in the case of panels foamed according to vertical planes.
  • a web is unwound, from a reel with a single web material.
  • the web is then cut longitudinally into two or more strips, the edges of which are folded upwards. Such strips with folded edges, are progressively inserted on the bottom of each panel being foamed.
  • the web materials 4 of a new reel are unwound by driving the respective motor of the spindle and separated from one another.
  • the respective front ends are inserted into the roller separators and positioned in the joining station 20 to be trimmed suitably so as to be ready to be joined to the tails of the webs getting exhausted.
  • the holding means 10 of the vacuum type and of the pressing laminas type act to maintain in a stationary position the aforesaid web ends, as shown in Figures 11 and
  • the cutting means 12 by inserting themselves transversely to the feed direction, cut and trim the head ends 14 of the new web materials 4.
  • the cutting means 12 In the transverse return movement, in the opposite direction to the movement that has just been made, the cutting means 12 also cut and trim the tail ends 14 of the web materials 4 of the now consumed reel.
  • the applicating means 16 spread the adhesive substance on the head ends 14 of the lower webs 4 and subsequently the presser- actuator means 18 advance upwards to press each head end 14 against the respective tail ends 13.
  • the presser- actuator means 18 are lowered again, the vacuum generation of the holding means 10 is interrupted or the respective pressing laminas are removed from the webs 4.
  • the presser-actuator means are activated to press each tail end with the corresponding head end and subsequently welding heads make the junction by means of a weld bead or electric induction melting.
  • the tilting supporting and unwinding means 2 rotate by 180° around the axis 19 to transfer the new reel 3B forwards.
  • the roller or sliding plane separators are again set up for the insertion of new web materials of a new stand-by reel.
  • the apparatus 1 it is possible to configure the apparatus 1 so as to process a different number of layers from what has just been disclosed, or several types of web materials simultaneously, using for example also single reels in addition to the multiple reels.
  • the apparatus 1 is configured for feeding webs to a foaming apparatus provided with vertical belt conveyors 40.
  • the apparatus 1 feeds web materials along vertical planes, along a horizontal feed direction, so as to enable two panels that are mutually parallel and lie on vertical planes to be foamed simultaneously.
  • the supporting and unwinding means 2 are configured for supporting a first multiple reel and a second stand-by multiple reel, each having two wound web materials.
  • the first two coating layers are thus placed further inside with respect to the belt conveyors 40 of the apparatus 1.
  • further supporting and unwinding means are provided for supporting, on opposite sides, two single reels 3S, i.e. each having one web material 4S which can be of a different nature respect to the material of the multiple reels 3 A and 3B.
  • two single reels 3S i.e. each having one web material 4S which can be of a different nature respect to the material of the multiple reels 3 A and 3B.
  • With each single reel a further single stand-by reel 3SR is associated that replaces the reel currently in use, once the latter finishes.
  • each web material 4s generates a second coating layer 31 on the respective panel.
  • separate holding, cutting and joining devices are provided for each web material unwound from a multiple reel 3 A and for each web material 4s of the single reels 3S.
  • the reels are arranged with their own horizontal axes and the webs exiting the accumulating station 8 adopt horizontal lying planes.
  • the aforesaid apparatuses 1 can also, with the necessary precautions and modifications, be used to feed the apparatus for vertical foaming panels. It is thus possible to rotate all the devices disclosed above by 90° so that they adopt a vertical arrangement, for example by orienting the rotation axes of the supporting and unwinding means vertically, and similarly for the other components of the apparatus 1.
  • the apparatus 1 and the respective method enable the objects declared above to be reached.
  • great versatility of use of the apparatus 1 is obtained which enables, in an extremely flexible manner, a plurality of web materials to be fed simultaneously and without interruptions to foam one or more continuous panels, enabling the management of the web materials to be simplified significantly and the associated overall dimensions to be reduced significantly.

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  • Replacement Of Web Rolls (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un procédé de fourniture de matériau en bande pour moussage de panneaux, consistant : i. à dérouler une pluralité de matériaux en bande à partir de moyens de bobine (3, 3A, 3B) qui comprennent une ou plusieurs bobine(s) multiple(s) (3A, 3B) sur lesquelles sont enroulés plusieurs matériaux en bande distincts et superposés (4) afin de générer des couches de revêtement externe respectives pour un ou plusieurs panneau(x) ; ii. à faire avancer simultanément les matériaux en bande (4) de manière commandée le long d'un chemin d'avancement et en fonction de plans respectifs parallèles les aux autres traversant une région de moussage (9) des panneaux continus ; iii. à accumuler des parties (7) de matériaux en bande (4) dans un poste d'accumulation (8) situé en amont de la région de moussage (9); iv. à saisir et à maintenir dans une région d'opération d'assemblage (11), en amont du poste d'accumulation (8), les rabats d'extrémité des parties d'accumulation (7) et à les séparer simultanément de la bobine multiple correspondante (3A) une fois épuisée, de façon à générer des extrémités de queue coupées (13); v. à découper les rabats de départ des matériaux de bande (4) d'une nouvelle bobine (3B) afin d'obtenir les extrémités de tête coupées (14) à assembler avec les extrémités de queue respectives (13), et à maintenir les extrémités de tête (14) dans la région d'opération d'assemblage (11) en position fixe ou en position relativement fixe par rapport aux extrémités de queue correspondantes (13); vi. à amener les extrémités de queue coupées (13) à proximité des extrémités de tête respectives, et à les superposer (13) sur ces dernières (14) de façon à assembler simultanément les parties d'accumulation (7) avec les matériaux en bande (4) de la bobine d'attente (3B). L'étape (ii) précitée consiste en particulier à fournir simultanément et séparément les matériaux en bande à un appareil qui est conçu pour déposer entre deux matériaux en bande contigus et opposés une résine réactive destinée à former une couche intermédiaire de mousse pour chaque panneau. L'invention concerne l'appareil associé pour mettre en œuvre le procédé précité.
PCT/IB2014/065990 2013-11-13 2014-11-12 Appareil et procédé de fourniture de matériau en bande pour moussage de panneaux Ceased WO2015071839A1 (fr)

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IT001883A ITMI20131883A1 (it) 2013-11-13 2013-11-13 Apparato e metodo per l'alimentazione di materiale in nastro per la schiumatura di pannelli
ITMI2013A001883 2013-11-13

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CN105923452A (zh) * 2016-07-04 2016-09-07 江阴市科盛机械有限公司 全自动高速分切机
CN106379759A (zh) * 2016-09-30 2017-02-08 铜陵其利电子材料有限公司 一种金属化薄膜分切机组
IT201600078303A1 (it) * 2016-07-26 2018-01-26 Omet Srl Gruppo di alimentazione per una macchina per la trasformazione di un nastro di materiale a due veli.
IT201900019791A1 (it) * 2019-10-25 2021-04-25 Makro Labelling Srl Apparato di giunzione per nastri di supporto di etichette adesive e procedimento di giunzione per nastri di supporto per etichette adesive
WO2024033725A1 (fr) * 2022-08-08 2024-02-15 Fameccanica.Data S.P.A. Procédé et machine de production de duvet de cellulose

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105923452A (zh) * 2016-07-04 2016-09-07 江阴市科盛机械有限公司 全自动高速分切机
IT201600078303A1 (it) * 2016-07-26 2018-01-26 Omet Srl Gruppo di alimentazione per una macchina per la trasformazione di un nastro di materiale a due veli.
WO2018020410A1 (fr) * 2016-07-26 2018-02-01 Omet S.R.L. Unité d'alimentation pour une machine de conversion de tissu pour convertir une bande de tissu à deux couches
CN109689547A (zh) * 2016-07-26 2019-04-26 奥梅茨私人公司 用于转换双层纸巾幅的纸巾转换机的供给单元
CN109689547B (zh) * 2016-07-26 2020-11-13 奥梅茨私人公司 用于转换双层纸巾幅的纸巾转换机的供给单元
TWI742116B (zh) * 2016-07-26 2021-10-11 義大利商歐米特股份有限公司 用於轉換兩層式紙巾織物的紙巾轉換機器的饋送單元
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CN106379759A (zh) * 2016-09-30 2017-02-08 铜陵其利电子材料有限公司 一种金属化薄膜分切机组
IT201900019791A1 (it) * 2019-10-25 2021-04-25 Makro Labelling Srl Apparato di giunzione per nastri di supporto di etichette adesive e procedimento di giunzione per nastri di supporto per etichette adesive
WO2021079312A1 (fr) * 2019-10-25 2021-04-29 Makro Labelling S.R.L. Appareil d'assemblage pour supporter des bandes d'étiquettes adhésives et procédé d'assemblage pour supporter des bandes d'étiquettes adhésives
US12286319B2 (en) 2019-10-25 2025-04-29 Makro Labelling S.R.L. Joining apparatus for supporting strips of adhesive labels and a joining process for supporting strips of adhesive labels
WO2024033725A1 (fr) * 2022-08-08 2024-02-15 Fameccanica.Data S.P.A. Procédé et machine de production de duvet de cellulose

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