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EP0698571B1 - Cutting and transport cylinder for webs - Google Patents

Cutting and transport cylinder for webs Download PDF

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Publication number
EP0698571B1
EP0698571B1 EP95111590A EP95111590A EP0698571B1 EP 0698571 B1 EP0698571 B1 EP 0698571B1 EP 95111590 A EP95111590 A EP 95111590A EP 95111590 A EP95111590 A EP 95111590A EP 0698571 B1 EP0698571 B1 EP 0698571B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
roll
pressure medium
separating
pressure
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.)
Expired - Lifetime
Application number
EP95111590A
Other languages
German (de)
French (fr)
Other versions
EP0698571A2 (en
EP0698571A3 (en
Inventor
Klaus Reinhold
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0698571A2 publication Critical patent/EP0698571A2/en
Publication of EP0698571A3 publication Critical patent/EP0698571A3/en
Application granted granted Critical
Publication of EP0698571B1 publication Critical patent/EP0698571B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/065—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/42—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member
    • B26D1/425—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • B26F3/12—Severing by using heat with heated members with heated wires
    • 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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2215—Turret-type with two roll supports
    • 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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B65H2301/4189—Cutting
    • B65H2301/41892—Cutting knife located in winding or guiding roller and protruding therefrom
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/233—Central support turret

Definitions

  • the invention relates to a cutting and transport roller for material webs according to the preamble of claim 1.
  • Such a cutting and transport roller is known from WO 95/15901 A.
  • the invention has for its object a cutting and To create transport roller, specifically as a counter roller is suitable for winding devices and with the the role change can be carried out quickly and easily and especially the new start of the path to avoid wrinkles and rail losses are accurate and safe of the new winding shaft.
  • the role changing device includes Cutting knife to cut through the web of material when finished Winding roll and the effective on its circumference Pressure room for holding the new start of the web and for it Handover to a new winding shaft. It is to hold on to of the new start of the web by means of the pressure chamber to the Extent of the counter roll a vacuum can be applied and for the Transfer of the start of the web to the new winding shaft of the circumference the counter roll over the pressure chamber with the beginning of the web overpressure repelling from the roller circumference.
  • the winding device shown in the drawing is used for winding material webs such as Plastic films made continuously by an extruder are produced and wound up as flat webs.
  • a pivot bearing designated as a whole by 3 a horizontal axis of rotation 4 is pivotally supported.
  • the Pivot bearing 3 is formed by a double lever, the contour-matched individual levers 5 and 6 each in an adjacent Side wall 2 of the device frame 1 in bearings mounted on the inside are rotatably mounted.
  • the two single levers 5 and 6 are each one two-armed lever formed, the two lever arms 8 and 9, starting from an inner one, comprising the axis of rotation 4 Area, each with an open to the outside Guide slot 10 for the respective stub shaft a winding shaft 12 or 13 are provided.
  • Each lever arm 8, 9 is through its guide slot 10 in two parallel arm parts 14 and 15 divided, one of which Arm part 14 extended over the arm part 15 to the outside is.
  • Arm part 14 has an end receptacle 16 with a contact shoulder 17 for the respective, a fully wound winding roll 24 (Fig. 2 and 3) carrying winding shaft 12.
  • the two lever arms 8 and 9 of each individual lever 5 and 6 are of identical design.
  • their arm pieces 14 and 15 are mutually offset above and below the axis of rotation 4 of the Pivot bearing 3 containing horizontal transverse plane 18 of the Device arranged.
  • a cutting and Transport roller 19 as a counter roller in the pivot bearing 3 a horizontal axis of rotation 20 rotatably supported with the axis of rotation 4 of the pivot bearing 3 coincides.
  • the Counter roller acts as a contact roller in the example shown with the winding shafts 12 and 13 or on this coiled web material together, which at 21 is illustrated in dash-dotted lines and towards the Arrow 22 of the counter roller 19 is supplied.
  • the order is taken so that the axis of rotation 4 of the Swivel bearing 3 and the axis of rotation coinciding therewith 20 of the counter roller 19 in a vertical Division plane 23 are located, which the device in two Workstations I and II divided.
  • the two workstations I and II are from the horizontal position of the pivot bearing 3 defined in which the axes of rotation Winding shafts 12, 13 and the axis of rotation 20 of the counter roller 19 in the common, also the axis of rotation 4 of the pivot bearing 3 containing horizontal transverse plane 18 of the device are arranged.
  • the counter roller 19 is reversible with a direction of rotation Drive for an optional circulation in or against the Connected clockwise, as well as the winding shafts 12 and 13 on both sides of the counter roller 19 in the two work stations I and II, which the counter roller 19 each Half is assigned, each with its own reversible direction of rotation Drive for one each to that of Counter roll 19 are connected in opposite directions.
  • This The measure serves as an optional winding of the material web 21 clockwise or counterclockwise to each Winding shaft 12.
  • the related to Coming reversible drives are used known to the expert in their application and therefore here not shown in detail.
  • the material web 21 is the winding device Guide rollers fed, of which only in the drawing the device-near are shown, namely two upper Guide rollers 25 and 26 and two lower ones to the counter roller 19 adjacent deflecting rollers 27 and 28.
  • the upper guide roller 25 is close in the side walls 2 of the device frame 1 the vertical division plane 23 of the device is freely rotatable stored while the guide roller 26 and the deflection rollers 27 and 28 in a separate boom 29 in Inside the device frame 1 mounted freely rotatable are.
  • first guide roller 27 or the second deflecting roller 28 is involved in the winding process, wherein the other deflecting roller is brought into a rest position can be in the forward of the counter-roller 19 Direction from the common horizontal plane of the Deflection rollers 27, 28 is offset. This can e.g. in not in more detail by shifting the respective Deflection roller 27, 28 in its bearing leg 32 after above with appropriate, releasable fixing.
  • the counter roller 19 contains a roll changing device Cutting knife for severing the web of material 21 when finished Winding roll 24 and includes one on her 34 effective pressure space to hold the new At the beginning of the web and for its transfer to a new winding shaft like the winding shaft 13. To hold the new The beginning of the web is by means of the effective pressure chamber at the Circumference 34 of the counter roller 19, a vacuum can be applied, see above that the beginning of the web is sucked onto the circumference 34 of the counter roller 19 becomes what a precise location further transport of the guaranteed new web start by means of the counter roller 19.
  • the Cutting and transport roller 19, as detailed in various exemplary embodiments in FIGS. 4 to 7 is described in more detail defining a roller circumference 34 hollow cylindrical roller shell 35, the its two end faces by an end wall 36 and 37 is closed to an inner roll cavity form.
  • the roll shell 35 includes in the illustrated Example, a metal jacket 38 and a mounted on this Rubber or rubber jacket 39.
  • a separating body 40 is inserted into the inner roller cavity, the one with the roller circumference 34 two essentially extending over the entire axial roll length Pressure rooms 41 and 42 limited.
  • the two pressure rooms 41 and 42 are above an arrangement of through holes 43 and 44 through the roller shell 35 with the Environment in connection.
  • through holes 43 or 44 are a plurality of axial rows of through holes 43 or 44 provided.
  • the roll shell 35 also with a passage slot 45 provided, which in turn is essentially extends over the entire axial roller length.
  • a cutting knife extends through slot 45 46, which in turn is in the inner roll cavity, and in the example shown also on the separating body 40, is supported.
  • the Separating body 40 as a hollow profile body with a multi-chamber profile formed, with a central, the roller axis 20 receiving chamber forms a connecting chamber 47 via which is a print medium from an external print medium source fed and optionally fed into the pressure chamber 41 or 42 becomes.
  • the connecting chamber 47 and the separating knife 46 is supported on the passage slot 45.
  • the separating body 40 has what is particularly evident from FIG. 5 three-chamber cross-sectional profile with a middle box-shaped bounding the connecting chamber 47 Part and two opposite, trapezoidal outer parts 48 and tapering towards the roll shell 35 49.
  • the separating body 40 extends diametrically the separating knife 46 and its passage slot on both sides 45 containing diameter plane 50 through the inner roller cavity and is at its radial ends with its outer parts 48 and 49 each with the inner jacket 38 of the roller 19 and with its front Ends with the insides of the end walls 36 and 37 of the Roller 19 firmly connected, for example welded.
  • the separating body 40 is symmetrical on both sides of the diameter plane 50 designed so that the two pressure chambers 41 and 42, for their part, are correspondingly symmetrical are, with their through holes 43 and 44 each other arranged diametrically opposite in the roll shell 35 are.
  • the pattern and arrangement of the penetration holes 43 and 44 can be changed.
  • the only through the through holes 43 and 44 with the environment related, otherwise sealed trained pressure spaces 41 and 42 are with the outer Media source optionally connectable.
  • the pressure chamber 42 can be connected to pressure medium, so the lead 51, after loosening its connection with of wall 52, pivoted through 180 ° and against that of wall 52 opposite wall 53 created and connected to this, then through a corresponding opening in the Wall 53 of the pressure chamber 42 connected to the pressure medium is, while the pressure chamber 41 receives no pressure medium, i.e. is not exposed to negative pressure or excess pressure.
  • the separating knife 46 is the one illustrated in FIGS. 4 and 5 Embodiment of a narrow upstanding cutting blade 54 formed with a free cutting edge end area through the passage slot 45 protrudes so that it the roller shell 35, i. slightly exceeds the outer circumference 34 of the roller 19.
  • to Carrying out a cut through the material web 21 is the cutting blade 45 from one end to the other end of the roller 19 linearly along the passage slot 45 movable at high speed.
  • the cutting blade 54 has in the longitudinal direction of the passage slot 45 opposing cutting edges 55, and a separating cut through the material web 21 can with every movement of the cutting blade 54 from the forehead to the front of the roller 19 with the leading one Cutting edge 55 are performed.
  • the linear movement of the cutting blade 54 along the Passage slot 45 is made by means of a pressure medium drive, that of a double-acting pressure medium operated Working cylinder 56 is formed.
  • a print medium comes preferably to actuate the working cylinder 56 Compressed air into consideration.
  • the cylinder 56 is in the outer part 49 of the three-chamber separating body 40 on an inner wall 57 supported with its two end connection parts 58 and 59. Extends between the two connecting parts 58 and 59 a connecting tube 60.
  • the cutting blade 54 is from a rodless piston (not shown) supported and with this over a narrow Intermediate web 61 connected with a tight movement in one opposite the passage slot 45 in the roller jacket 35 Guide slot of the connecting tube 60 of the Working cylinder 56 is guided.
  • the working cylinder 56 extends essentially over the entire axial Length of the roller 19, wherein for the connecting tube 60 and the piston guided in this one fits into each other Round or polygonal profile, for example that from FIG. 5 apparent rectangular profile is provided.
  • the compressed air supply to the working cylinder 56 takes place via a known rotary inlet 62 with two feed channels, the external connections 63 and 64 with a Compressed air supply line in connection.
  • Via a threaded pin 65 is the rotary entry 62 with an end Bearing journal 66 of the roller 19 screwed tight.
  • the Bearing journal 66 has two concentric ones inside Channels 67 and 68, which are connected to the two compressed air channels Rotary inlet 62 are connected.
  • Leading from channel 67 a line 69 to the connecting part 58 of the working cylinder 56, while from line 68 a line 70 to the connector 59 of the working cylinder 56 leads.
  • the knife blade 54 connected to the cylinder piston is 4 in one of its two end positions near the End wall 36 shown, in which the cylinder piston to the connecting part 58 adjacent.
  • the connector 58 For performing a cutting process becomes the connector 58 via line 69 compressed air fed at high pressure so that the piston-based Cutting blade 54 abruptly along the passage slot 45 moved to the end wall 37 of the roller 19 and without interacting with a counter knife, through a substantially rectangular cut executes the material web 21.
  • the end position of the knife blade 54 near the end wall 37 corresponds to that in FIG. 4 position shown near the end wall 36, i.e. the Cylinder piston with knife blade 54 is short before the connector 59 to pressurize the Connecting line 70 and thus the connecting part 59 again suddenly in the opposite direction the passage slot 45 for performing a separating cut to be driven by the web of material 21.
  • the bearing pin 66 serves, moreover, as well as a further journal 71 in the end wall 37, in itself known manner, the rotary drive of the roller 19. It is the bearing journal 71 is also provided with a rotary entry, which is designated here with 72.
  • Rotary inlet 62 has only one rotary inlet 72 central pressure medium channel, which has an external connection 73 is connected to a pressure medium supply line.
  • the central one stands over a hollow threaded pin 74
  • Pressure medium channel with an inner pressure medium channel 75 des Bearing pin 71 in connection, from the inner end of which Pressure medium line 51 for supplying the pressure space 41 or 42 goes out with air as the pressure medium.
  • the pressure medium channel 75 is optionally available with the rotary entry 72 an external negative pressure source or a positive pressure source through a corresponding switchover process in the supply system connectable.
  • connection with an external vacuum source means that through the through holes 43 or 44 air sucked in from the environment or one above the through holes 43 or 44 lying material web in this area is sucked onto the roller circumference 34.
  • the negative pressure source to the positive pressure source becomes the pressure medium channel 75 and thus via line 51 the pressure chamber 41 or 42 with such a pressure Pressure supplied that previously in the area of Through holes 43 or 44 held material web by acting on the through bores 43 and 44 respectively Compressed air is expelled from the roller circumference 34 in order to Application described above, on the winding tube a new winding shaft 13 in the course of the implementation of a change of roles.
  • Winder usable cutting and transport roller 19 according to Fig. 6 will for with the exemplary embodiment according to FIGS. 4 and 5 same or corresponding components have the same reference numerals used without repeated description.
  • FIG. 6 is the cutting knife 46 from a cutting blade 76 with an outer Cutting edge 77 formed, the length of which is substantially is equal to that of the passage slot 45.
  • the cutting edge 77 which is shaped like a serrated knife, is normally within, as illustrated in Figure 6 of the passage slot 45 held without the To protrude roller circumference 34.
  • the cutting blade 76 is briefly with the direction of travel high speed in the radial direction of the roller diameter out of the passage slot 45 and moved back again.
  • double-acting pressure medium-operated lifting cylinders are used 78, preferably air cylinders, in the two End regions of the cutting blade 76 provided that the adjoin the respective roller end wall 36 or 37.
  • the lifting cylinders 78 are each on the inner wall 57 of the separating body 40 supported.
  • the piston rod 79 of the respective Lift cylinder 78 is on the inside of the cutting blade 76 attached.
  • For the forward and return stroke of the piston of the lifting cylinder 78 are on both sides of the Pressure medium supply lines leading into the end of the piston 80 and 81 are provided.
  • the supply of the Lines 80 and 81 take place via a rotary entry 62 and a journal 66 according to FIG. 4, as well as the other bearing journals not shown in FIG. 6 corresponds to the journal 71 according to FIG. 4.
  • Fig. 1 the winding device is in the ongoing winding operation shown, the incoming material web 21st while wrapping the deflection roller 27 over the counter roller 19 of the winding roller 24 rotating in the clockwise direction becomes. There is already a new one in workstation I. Winding shaft 13 has been used.
  • The. Fig. 2 shows the fully wound clockwise Winding roll 24 just before in the work station I wound a new path start on the winding shaft 13 becomes.
  • the role change is initiated in such a way that when a certain winding diameter is reached for the Is given a control signal by which when winding in a clockwise direction, the pressure chamber 42 from the external negative pressure builds up a negative pressure, so that through the through holes 44 in the roller jacket 35th the incoming material web 21 on the roller circumference 34 of the Counter roll 19 is sucked.
  • the cutting process by means of of the cutting knife 46 is carried out by appropriate drive control during continuous feeding the material web 21 between the deflection roller 27 and the new winding shaft 13.
  • the deflection roller 28 is located here in their rest position.
  • a winding shaft magazine to take a new winding shaft 13, with a Winding tube, usually made of cardboard with external adhesive strip, to be provided and in the workstation I in Bring position to carry out the start-up process in time in the specified direction of rotation To turn.
  • Locking the winding shafts 12 and 13 in their respective guide slot 10 of the pivot bearing 3 can with suitable means that the expert on readily available in this area, for example by means of a claw protection.
  • the roll change is quick and easy simply because with the cutting and transport roller according to the invention as counter roll 19, the material web 21 without interrupt their influx with a minimum of time cross-separated and the new start of the web is safe the new winding shaft 13 can be transported.
  • the cutting and Transport roller 19 not only as a counter roller with a Reel changing device in a winding device of continuously running film, paper and Like.
  • Material webs of the type described above is suitable, rather it is also suitable in other applications to perform the same or similar tasks and especially for use in others Winding devices, in particular not with a one Forming station and a finishing station Swivel bearings work, in which rather only one winding station is provided for the winding and finishing of the serves the respective material roll.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Advancing Webs (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

The cutting and transporting roll (19) can be used as a counter-roll for an unwinding device. There is a dividing body (4) in the internal hollow space of the roll. With the roll circumference it forms at least one pressure space (41,42) with through borings (43,44) in the roll shell (35). The pressure space extends over the entire axial length of the roll. There is also a through slit (45) in the roll, also extending along the entire roll. A cutting knife (46) passes through this slit to cut the material. The dividing body may be hollow, with its internal space supplied with fluid under pressure.

Description

Die Erfindung betrifft eine Schneid- und Transportwalze für Materialbahnen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a cutting and transport roller for material webs according to the preamble of claim 1.

Eine derartige Schneid- und Transportwalze ist bekannt aus WO 95/15901 A.Such a cutting and transport roller is known from WO 95/15901 A.

Es sind zahlreiche mit einer Gegenwalze arbeitende Wickelvorrichtungen bekannt, bei denen als Rollenwechseleinrichtung eine gesonderte Schneidvorrichtung mit einem Trennmesser vorgesehen ist, die die Materialbahn durchtrennt, wenn die Materialrolle auf einer gegebenen Wickelwelle fertiggewickelt ist. Schwierigkeiten bereitet es hierbei, das von der Wickelrolle abgetrennte Bahnende von der Wickelrolle zu lösen und als neuen Bahnanfang auf einer neuen wickelwelle bzw. einer darauf als Rollenkern angebrachten Wickelhülse während des kontinuierlichen Zulaufs der Materialbahn schnell und sicher festzulegen, ohne daß hohe Bahnverluste entstehen und unerwünschte Falten in der Materialbahn beim Anwickelvorgang entstehen.There are numerous winding devices working with a counter roller known in which as a roll changing device a separate cutter with a Cutting knife is provided which cuts through the material web, when the roll of material on a given winding shaft is finished wrapped. It creates difficulties here, the web end separated from the winding roll by loosen the winding roll and as a new path start on one new winding shaft or a roller core attached to it Winding tube during the continuous feed the material web quickly and safely without that high web losses arise and undesirable wrinkles arise in the material web during the winding process.

Der Erfindung liegt die Aufgabe zugrunde, eine Schneidund Transportwalze zu schaffen, die speziell als Gegenwalze bei Wickelvorrichtungen geeignet ist und mit der sich der Rollenwechsel einfach und schnell durchführen und insbesondere der neue Bahnanfang zur Vermeidung von Faltenbildungen und Bahnverlusten lagegenau und sicher auf der neuen Wickelwelle festlegen läßt. The invention has for its object a cutting and To create transport roller, specifically as a counter roller is suitable for winding devices and with the the role change can be carried out quickly and easily and especially the new start of the path to avoid wrinkles and rail losses are accurate and safe of the new winding shaft.

Diese Aufgabe wird nach der Erfindung durch eine Ausgestaltung der Walze gemäß den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Die in dieser Weise ausgebildete Schneid- und Transportwalze bildet bei ihrem Einsatz in einer Wickelvorrichtung eine Gegenwalze mit integrierter Rollenwechseleinrichtung, derart, daß das Trennmesser ein Bauteil der Gegenwalze selbst bildet und so auf kurzem Weg eine sichere Übergabe des abgetrennten Bahnendes als neuer Bahnanfang an eine Wickelwelle zum Anwickeln erfolgen kann.This object is achieved according to the invention by an embodiment the roller according to the characteristic features of the Claim 1 solved. The one trained in this way Cutting and transport roller forms when used in a winding device a counter roll with integrated Roll changing device, such that the cutting knife Component of the counter roll forms itself and so in a short way a safe handover of the severed web end as a new one Start the web at a winding shaft for winding can.

Im einzelnen umfaßt die Rollenwechseleinrichtung das Trennmesser zum Durchtrennen der Materialbahn bei fertiggewickelter Wickelrolle und den an ihrem Umfang wirksamen Druckraum zum Festhalten des neuen Bahnanfangs und zu dessen Übergabe an eine neue Wickelwelle. Dabei ist zum Festhalten des neuen Bahnanfangs mittels des Druckraums an den Umfang der Gegenwalze ein Unterdruck anlegbar und für die Übergabe des Bahnanfangs an die neue Wickelwelle der Umfang der Gegenwalze über den Druckraum mit einem den Bahnanfang vom Walzenumfang abstoßenden Überdruck beaufschlagbar. Hierdurch wird nach dem Quertrennen der Materialbahn mittels des Trennmessers zunächst der neue Bahnanfang durch den Unterdruck sicher am Umfang der Gegenwalze festgehalten, während bei Erreichen der neuen Wickelwelle durch Umschalten des Druckraums auf Überdruck der neue Bahnanfang vom Umfang der Gegenwalze abgestoßen und dabei gleichzeitig auf die neue Wickelwelle bzw. deren Wickelhülse aufgewickelt wird.In particular, the role changing device includes Cutting knife to cut through the web of material when finished Winding roll and the effective on its circumference Pressure room for holding the new start of the web and for it Handover to a new winding shaft. It is to hold on to of the new start of the web by means of the pressure chamber to the Extent of the counter roll a vacuum can be applied and for the Transfer of the start of the web to the new winding shaft of the circumference the counter roll over the pressure chamber with the beginning of the web overpressure repelling from the roller circumference. As a result, after the material web is cross-cut first the new path start using the cutting knife due to the negative pressure on the circumference of the counter roller held on while reaching the new winding shaft by switching the pressure chamber to overpressure the new one The beginning of the web is pushed away from the circumference of the counter roller and thereby simultaneously on the new winding shaft or its winding tube is wound up.

Zahlreiche weitere Merkmale und Vorteile der Erfindung ergeben sich aus den weiteren Ansprüchen und der nachstehenden Beschreibung in Verbindung mit der Zeichnung, in der mehrere Ausführungsbeispiele der erfindungsgemäßen Schneid- und Transportwalze schematisch veranschaulicht sind. In der Zeichnung zeigt:

Fig. 1
einen vertikalen Längsschnitt durch eine Wickelvorrichtung während eines laufenden Wickelvorgangs, wobei die Materialbahn im Uhrzeigersinn aufgewickelt wird,
Fig. 2
eine Darstellung entsprechend Fig. 1, wobei jedoch die Wickelrolle in der Fertigwickelstation fertiggewickelt ist und das Anwickeln in der Anwickelstation kurz bevorsteht,
Fig. 3
eine Darstellung entsprechend Fig. 2 mit der Wickelrichtung entgegen dem Uhrzeigersinn,
Fig. 4
einen Längsschnitt durch eine erfindungsgemäße Schneid- und Transportwalze nach einer ersten Ausführungsform,
Fig. 5
einen Querschnitt durch die Walze nach Fig. 4, und
Fig. 6
einen Längsschnitt durch die Schneid- und Transportwalze nach einem weiteren Ausführungsbeispiel, beschränkt auf den Bereich eines Stirnendes der walze, und
Numerous further features and advantages of the invention result from the further claims and the following description in conjunction with the drawing, in which several exemplary embodiments of the cutting and transport roller according to the invention are schematically illustrated. The drawing shows:
Fig. 1
a vertical longitudinal section through a winding device during an ongoing winding process, wherein the material web is wound clockwise,
Fig. 2
a representation corresponding to FIG. 1, however, the winding roll is finished wound in the finish winding station and the winding in the winding station is imminent,
Fig. 3
2 with the winding direction counterclockwise,
Fig. 4
2 shows a longitudinal section through a cutting and transport roller according to the invention according to a first embodiment,
Fig. 5
a cross section through the roller of FIG. 4, and
Fig. 6
a longitudinal section through the cutting and transport roller according to a further embodiment, limited to the region of a front end of the roller, and

Die in der Zeichnung dargestellte Wickelvorrichtung dient zum Auf wickeln von Materialbahnen wie beispielsweise Kunststoffolien, die von einem Extruder kontinuierlich hergestellt und als flache Bahnen aufgewickelt werden.The winding device shown in the drawing is used for winding material webs such as Plastic films made continuously by an extruder are produced and wound up as flat webs.

In einem als Ganzes mit 1 bezeichneten Vorrichtungsgestell mit zwei einander gegenüberliegenden gleichen Seitenwänden 2 ist ein als Ganzes mit 3 bezeichnetes Schwenklager um eine horizontale Drehachse 4 schwenkbar abgestützt. Das Schwenklager 3 ist von einem Doppelhebel gebildet, dessen konturengleiche Einzelhebel 5 und 6 jeweils in einer angrenzenden Seitenwand 2 des Vorrichtungsgestells 1 in innenseitig angebrachten Lagern drehbar gelagert sind. Die beiden Einzelhebel 5 und 6 sind jeweils von einem zweiarmigen Hebel gebildet, dessen beide Hebelarme 8 und 9, ausgehend von einem inneren, die Drehachse 4 umfassenden Bereich, jeweils mit einem nach außen offen ausmündenden Führungsschlitz 10 für den jeweiligen Wellenstumpf einer Wickelwelle 12 bzw. 13 versehen sind.In a device frame designated as a whole by 1 with two opposite side walls 2 is a pivot bearing designated as a whole by 3 a horizontal axis of rotation 4 is pivotally supported. The Pivot bearing 3 is formed by a double lever, the contour-matched individual levers 5 and 6 each in an adjacent Side wall 2 of the device frame 1 in bearings mounted on the inside are rotatably mounted. The two single levers 5 and 6 are each one two-armed lever formed, the two lever arms 8 and 9, starting from an inner one, comprising the axis of rotation 4 Area, each with an open to the outside Guide slot 10 for the respective stub shaft a winding shaft 12 or 13 are provided.

Jeder Hebelarm 8, 9 ist durch seinen Führungsschlitz 10 in zwei parallele Armteile 14 und 15 geteilt, von denen der Armteil 14 über den Armteil 15 nach außen hin verlängert ist. In seinem äußeren Verlängerungsbereich bildet jeder Armteil 14 eine Endaufnahme 16 mit einer Anlageschulter 17 für die jeweilige, eine fertiggewiokelte Wickelrolle 24 (Fig. 2 und 3) tragende Wickelwelle 12. Die beiden Hebelarme 8 und 9 jedes Einzelhebels 5 bzw. 6 sind gleich ausgebildet. In einer horizontalen Position des Schwenklagers 3, wie sie aus den Figuren 1 bis 3 ersichtlich ist, sind jedoch ihre Armteile 14 und 15 jeweils wechselseitig versetzt oberhalb und unterhalb der die Drehachse 4 des Schwenklagers 3 enthaltenden horizontalen Querebene 18 der Vorrichtung angeordnet.Each lever arm 8, 9 is through its guide slot 10 in two parallel arm parts 14 and 15 divided, one of which Arm part 14 extended over the arm part 15 to the outside is. Everyone forms in his outer extension area Arm part 14 has an end receptacle 16 with a contact shoulder 17 for the respective, a fully wound winding roll 24 (Fig. 2 and 3) carrying winding shaft 12. The two lever arms 8 and 9 of each individual lever 5 and 6 are of identical design. In a horizontal position of the swivel bearing 3, as can be seen from FIGS. 1 to 3 however, their arm pieces 14 and 15 are mutually offset above and below the axis of rotation 4 of the Pivot bearing 3 containing horizontal transverse plane 18 of the Device arranged.

Ebenso wie die Wickelwellen 12 und 13 ist eine Schneidund Transportwalze 19 als Gegenwalze im Schwenklager 3 um eine horizontale Drehachse 20 drehbar abgestützt, die mit der Drehachse 4 des Schwenklagers 3 zusammenfällt. Die Gegenwalze wirkt bei dem dargestellten Beispiel als Kontaktwalze mit den Wickelwellen 12 und 13 bzw. dem auf diese aufgewickelten Bahnmaterial zusammen, das bei 21 strichpunktiert veranschaulicht ist und in Richtung des Laufpfeils 22 der Gegenwalze 19 zugeführt wird. Die Anordnung ist dabei so getroffen, daß die Drehachse 4 des Schwenklagers 3 und die mit dieser zusammenfallende Drehachse 20 der Gegenwalze 19 in einer vertikalen Teilungsebene 23 gelegen sind, die die Vorrichtung in zwei Arbeitsstationen I und II unterteilt. Die beiden Arbeitsstationen I und II sind von der horizontalen Position des Schwenklagers 3 definiert, in der die Drehachsen der Wickelwellen 12, 13 und die Drehachse 20 der Gegenwalze 19 in der gemeinsamen, außerdem die Drehachse 4 des Schwenklagers 3 enthaltenden horizontalen Querebene 18 der Vorrichtung angeordnet sind.Just like the winding shafts 12 and 13 is a cutting and Transport roller 19 as a counter roller in the pivot bearing 3 a horizontal axis of rotation 20 rotatably supported with the axis of rotation 4 of the pivot bearing 3 coincides. The Counter roller acts as a contact roller in the example shown with the winding shafts 12 and 13 or on this coiled web material together, which at 21 is illustrated in dash-dotted lines and towards the Arrow 22 of the counter roller 19 is supplied. The order is taken so that the axis of rotation 4 of the Swivel bearing 3 and the axis of rotation coinciding therewith 20 of the counter roller 19 in a vertical Division plane 23 are located, which the device in two Workstations I and II divided. The two workstations I and II are from the horizontal position of the pivot bearing 3 defined in which the axes of rotation Winding shafts 12, 13 and the axis of rotation 20 of the counter roller 19 in the common, also the axis of rotation 4 of the pivot bearing 3 containing horizontal transverse plane 18 of the device are arranged.

Die Gegenwalze 19 ist mit einem drehrichtungsumkehrbaren Antrieb für einen wahlweisen Umlauf in oder entgegen dem Uhrzeigersinn verbunden, wie auch die Wickelwellen 12 und 13 beidseits der Gegenwalze 19 in den beiden Arbeitsstationen I und II, denen die Gegenwalze 19 jeweils zur Hälfte zugeordnet ist, jeweils mit einem eigenen drehrichtungsumkehrbaren Antrieb für einen jeweils zu dem der Gegenwalze 19 gegenläufigen Umlauf verbunden sind. Diese Maßnahme dient einem wahlweisen Aufwickeln der Materialbahn 21 im oder entgegen dem Uhrzeigersinn auf die jeweilige Wickelwelle 12. Die in diesem Zusammenhang zum Einsatz kommenden drehrichtungsumkehrbaren Antriebe sind dem Fachmann in ihrer Anwendung bekannt und daher hier nicht näher dargestellt.The counter roller 19 is reversible with a direction of rotation Drive for an optional circulation in or against the Connected clockwise, as well as the winding shafts 12 and 13 on both sides of the counter roller 19 in the two work stations I and II, which the counter roller 19 each Half is assigned, each with its own reversible direction of rotation Drive for one each to that of Counter roll 19 are connected in opposite directions. This The measure serves as an optional winding of the material web 21 clockwise or counterclockwise to each Winding shaft 12. The related to Coming reversible drives are used known to the expert in their application and therefore here not shown in detail.

Die Materialbahn 21 wird der Wickelvorrichtung über Führungswalzen zugeführt, von denen in der Zeichnung nur die vorrichtungsnahen dargestellt sind, nämlich zwei obere Leitwalzen 25 und 26 und zwei untere, an die Gegenwalze 19 angrenzende Umlenkwalzen 27 und 28. Die obere Leitwalze 25 ist in den Seitenwänden 2 des Vorrichtungsgestells 1 nahe der vertikalen Teilungsebene 23 der Vorrichtung frei drehbar gelagert, während die Leitwalze 26 und die Umlenkwalzen 27 und 28 in einem gesonderten Ausleger 29 im Inneren des Vorrichtungsgestells 1 frei drehbar gelagert sind.The material web 21 is the winding device Guide rollers fed, of which only in the drawing the device-near are shown, namely two upper Guide rollers 25 and 26 and two lower ones to the counter roller 19 adjacent deflecting rollers 27 and 28. The upper guide roller 25 is close in the side walls 2 of the device frame 1 the vertical division plane 23 of the device is freely rotatable stored while the guide roller 26 and the deflection rollers 27 and 28 in a separate boom 29 in Inside the device frame 1 mounted freely rotatable are.

In Abhängigkeit von der Wickelrichtung des Bahnmaterials 21 auf der jeweiligen Wickelwelle 12 in oder entgegen dem Uhrzeigersinn ist entweder die erste Umlenkwalze 27 oder die zweite Umlenkwalze 28 am Wickelprozeß beteiligt, wobei jeweils die andere Umlenkwalze in eine Ruhestellung verbracht werden kann, die in von der Gegenwalze 19 fortweisender Richtung aus der gemeinsamen Horizontalebene der Umlenkwalzen 27, 28 versetzt ist. Dies kann z.B. in nicht näher dargestellter Weise durch eine Verschiebung der jeweiligen Umlenkwalze 27, 28 in ihrem Lagerschenkel 32 nach oben mit entsprechender, lösbarer Festsetzung erfolgen.Depending on the winding direction of the web material 21 on the respective winding shaft 12 in or against the Clockwise is either the first guide roller 27 or the second deflecting roller 28 is involved in the winding process, wherein the other deflecting roller is brought into a rest position can be in the forward of the counter-roller 19 Direction from the common horizontal plane of the Deflection rollers 27, 28 is offset. This can e.g. in not in more detail by shifting the respective Deflection roller 27, 28 in its bearing leg 32 after above with appropriate, releasable fixing.

Die Gegenwalze 19 enthält als Rollenwechseleinrichtung ein Trennmesser zum Durchtrennen der Materialbahn 21 bei fertiggewickelter Wickelrolle 24 und umfaßt einen an ihrem Umfang 34 wirksamen Druckraum zum Festhalten des neuen Bahnanfangs und zu dessen Übergabe an eine neue Wickelwelle wie die Wickelwelle 13. Zum Festhalten des neuen Bahnanfangs ist mittels des wirksamen Druckraums an den Umfang 34 der Gegenwalze 19 ein Unterdruck anlegbar, so daß der Bahnanfang an den Umfang 34 der Gegenwalze 19 angesaugt wird, was einen lagegenauen Weitertransport des neuen Bahnanfangs mittels der Gegenwalze 19 gewährleistet. Für die Übergabe des Bahnanfangs an die neue Wickelwelle wie die Wickelwelle 13 erfolgt eine Umschaltung des wirksamen Druckraums auf Überdruck, wodurch die Saugwirkung aufgehoben und der Bahnanfang statt dessen vom Walzenumfang 34 abgestoßen wird, um an die neue Wickelwelle 13 bzw. eine auf diese aufgeschobene Wickelhülse, die ggf. in an sich bekannter Weise mit einem äußeren Klebstoffauftrag versehen sein kann, angewickelt zu werden.The counter roller 19 contains a roll changing device Cutting knife for severing the web of material 21 when finished Winding roll 24 and includes one on her 34 effective pressure space to hold the new At the beginning of the web and for its transfer to a new winding shaft like the winding shaft 13. To hold the new The beginning of the web is by means of the effective pressure chamber at the Circumference 34 of the counter roller 19, a vacuum can be applied, see above that the beginning of the web is sucked onto the circumference 34 of the counter roller 19 becomes what a precise location further transport of the guaranteed new web start by means of the counter roller 19. For transferring the start of the web to the new winding shaft like the winding shaft 13 there is a switchover of the effective Pressure chamber to overpressure, which creates the suction effect canceled and the start of the web instead of the roll circumference 34 is repelled to the new winding shaft 13th or a winding sleeve pushed onto this, which may be in in a known manner with an external application of adhesive can be provided to be wrapped.

Zur Ausübung dieser Funktionen als Gegenwalze umfaßt die Schneid- und Transportwalze 19, wie sie im einzelnen in verschiedenen Ausführungsbeispielen in den Figuren 4 bis 7 näher beschrieben ist, einen den Walzenumfang 34 definierenden hohlzylindrischen Walzenmantel 35, der an seinen beiden Stirnseiten durch je eine Stirnwand 36 und 37 geschlossen ist, um einen inneren Walzenhohlraum zu bilden. Der Walzenmantel 35 umfaßt bei dem dargestellten Beispiel einen Metallmantel 38 und einen auf diesen aufgezogenen Kautschuk- oder Gummimantel 39. Je nach dem Einsatzfall und dem Bahnmaterial, das von der Walze 19 zu handhaben ist, kann anstelle des Gummimantels 39 eine Beschichtung des Metallmantels 38 mit anderem Material vorgesehen sein, oder der Metallmantel 38 kann außenseitig verchromt sein.To perform these functions as a counter roll, the Cutting and transport roller 19, as detailed in various exemplary embodiments in FIGS. 4 to 7 is described in more detail defining a roller circumference 34 hollow cylindrical roller shell 35, the its two end faces by an end wall 36 and 37 is closed to an inner roll cavity form. The roll shell 35 includes in the illustrated Example, a metal jacket 38 and a mounted on this Rubber or rubber jacket 39. Depending on the application and the web material from the roller 19 too handle, can be a coating instead of the rubber jacket 39 of the metal jacket 38 provided with other material or the metal jacket 38 can be on the outside be chrome plated.

In den inneren Walzenhohlraum ist ein Trennkörper 40 eingesetzt, der mit dem Walzenumfang 34 zwei sich im wesentlichen über die gesamte axiale Walzenlänge erstreckende Druckräume 41 und 42 begrenzt. Die beiden Druckräume 41 und 42 stehen über eine Anordnung von Durchtrittsbohrungen 43 und 44 durch den Walzenmantel 35 hindurch mit der Umgebung in Verbindung. Bei dem dargestellten Beispiel sind mehrere axiale Reihen von Durchtrittsbohrungen 43 bzw. 44 vorgesehen.A separating body 40 is inserted into the inner roller cavity, the one with the roller circumference 34 two essentially extending over the entire axial roll length Pressure rooms 41 and 42 limited. The two pressure rooms 41 and 42 are above an arrangement of through holes 43 and 44 through the roller shell 35 with the Environment in connection. In the example shown are a plurality of axial rows of through holes 43 or 44 provided.

Außerhalb des Bereichs der Durchtrittsbohrungen 43 und 44 ist der Walzenmantel 35 außerdem mit einem Durchtrittsschlitz 45 versehen, der sich seinerseits im wesentlichen über die gesamte axiale Walzenlänge erstreckt. Durch den Durchtrittsschlitz 45 hindurch erstreckt sich ein Trennmesser 46, das seinerseits im inneren Walzenhohlraum, und zwar bei dem dargestellten Beispiel ebenfalls am Trennkörper 40, abgestützt ist.Outside the area of the through bores 43 and 44 is the roll shell 35 also with a passage slot 45 provided, which in turn is essentially extends over the entire axial roller length. By the A cutting knife extends through slot 45 46, which in turn is in the inner roll cavity, and in the example shown also on the separating body 40, is supported.

Wie insbesondere die Figuren 4 und 5 zeigen, ist der Trennkörper 40 als Hohlprofilkörper mit einem Mehrkammerprofil ausgebildet, wobei eine mittlere, die Walzenachse 20 aufnehmende Kammer eine Verbindungskammer 47 bildet, über die ein Druckmedium von einer äußeren Druckmediumquelle zugeführt und wahlweise in den Druckraum 41 oder 42 eingespeist wird. Im Bereich zwischen der Verbindungskammer 47 und dem Durchtrittsschlitz 45 ist das Trennmesser 46 abgestützt.As particularly shown in Figures 4 and 5, the Separating body 40 as a hollow profile body with a multi-chamber profile formed, with a central, the roller axis 20 receiving chamber forms a connecting chamber 47 via which is a print medium from an external print medium source fed and optionally fed into the pressure chamber 41 or 42 becomes. In the area between the connecting chamber 47 and the separating knife 46 is supported on the passage slot 45.

Der Trennkörper 40 hat das insbesondere aus Fig. 5 ersichtliche dreikammerige Querschnittsprofil mit einem mittleren, die Verbindungskammer 47 umgrenzenden kastenförmigen Teil und zwei diesem gegenüberliegenden, sich trapezförmig zum Walzenmantel 35 hin verjüngenden Außenteilen 48 und 49. Der Trennkörper 40 erstreckt sich dabei diametral beidseits einer das Trennmesser 46 und dessen Durchtrittsschlitz 45 enthaltenden Durchmesserebene 50 durch den inneren Walzenhohlraum und ist an seinen radialen Enden mit seinen Außenteilen 48 und 49 jeweils mit dem Innenmantel 38 der Walze 19 sowie mit seinen stirnseitigen Enden mit den Innenseiten der Stirnwände 36 und 37 der Walze 19 fest verbunden, zum Beispiel verschweißt.The separating body 40 has what is particularly evident from FIG. 5 three-chamber cross-sectional profile with a middle box-shaped bounding the connecting chamber 47 Part and two opposite, trapezoidal outer parts 48 and tapering towards the roll shell 35 49. The separating body 40 extends diametrically the separating knife 46 and its passage slot on both sides 45 containing diameter plane 50 through the inner roller cavity and is at its radial ends with its outer parts 48 and 49 each with the inner jacket 38 of the roller 19 and with its front Ends with the insides of the end walls 36 and 37 of the Roller 19 firmly connected, for example welded.

Der Trennkörper 40 ist symmetrisch beidseits der Durchmesserebene 50 ausgebildet, so daß die beiden Druckräume 41 und 42 ihrerseits entsprechend symmetrisch ausgebildet sind, wobei ihre Durchtrittsbohrungen 43 und 44 einander diametral gegenüberliegend im Walzenmantel 35 angeordnet sind. Das Muster und die Anordnung der Dürchtrittsbohrungen 43 und 44 können jedoch in Abhängigkeit von dem jeweiligen Anwendungsfall gegenüber dem in Fig. 5 zeichnerisch dargestellten Beispiel verändert werden. Die nur über die Durchtrittsbohrungen 43 bzw. 44 mit der Umgebung in Verbindung stehenden, im übrigen abgedichtet ausgebildeten Druckräume 41 und 42 sind mit der äußeren Druckmediumquelle wahlweise verbindbar.The separating body 40 is symmetrical on both sides of the diameter plane 50 designed so that the two pressure chambers 41 and 42, for their part, are correspondingly symmetrical are, with their through holes 43 and 44 each other arranged diametrically opposite in the roll shell 35 are. The pattern and arrangement of the penetration holes 43 and 44, however, depending on the respective application compared to that in FIG. 5 example shown in the drawing can be changed. The only through the through holes 43 and 44 with the environment related, otherwise sealed trained pressure spaces 41 and 42 are with the outer Media source optionally connectable.

Bei dem in den Fig. 4 und 5 dargestellten Beispiel ist eine Zuführleitung 51 an die dem Druckraum 41 zugewandte Wand 52 der Verbindungskammer 47 angelegt, wobei durch eine entsprechende Öffnung in der Wand 52 der Druckraum 41 mit dem Druckmedium verbunden wird, während der andere Druckraum 42 vom Druckmedium abgeschlossen ist. Soll andererseits der Druckraum 42 mit Druckmedium verbunden werden, so wird die Zuleitung 51, nach Lösen ihrer Verbindung mit der Wand 52, um 180° verschwenkt und an die der Wand 52 gegenüberliegende Wand 53 angelegt und mit dieser verbunden, wobei dann über eine entsprechende Öffnung in der Wand 53 der Druckraum 42 mit dem Druckmedium verbunden wird, während der Druckraum 41 kein Druckmedium erhält, d.h. keinem Unterdruck oder Überdruck ausgesetzt wird. In the example shown in FIGS. 4 and 5 a supply line 51 to the pressure chamber 41 facing Wall 52 of the connecting chamber 47 created, with a corresponding opening in the wall 52 of the pressure chamber 41 the pressure medium is connected, while the other pressure space 42 is completed by the print medium. On the other hand, should the pressure chamber 42 can be connected to pressure medium, so the lead 51, after loosening its connection with of wall 52, pivoted through 180 ° and against that of wall 52 opposite wall 53 created and connected to this, then through a corresponding opening in the Wall 53 of the pressure chamber 42 connected to the pressure medium is, while the pressure chamber 41 receives no pressure medium, i.e. is not exposed to negative pressure or excess pressure.

Das Trennmesser 46 ist bei dem in den Figuren 4 und 5 veranschaulichten Ausführungsbeispiel von einer schmalen hochstehenden Schneidklinge 54 gebildet, die mit einem freien Schneidkantenendbereich durch den Durchtrittsschlitz 45 vorsteht, so daß sie den Walzenmantel 35, d.h. den Außenumfang 34 der Walze 19, geringfügig überragt. Zur Durchführung eines Trennschnittes durch die Materialbahn 21 ist die Schneidklinge 45 von einem Stirnende zum anderen Stirnende der Walze 19 linear entlang dem Durchtrittsschlitz 45 mit hoher Geschwindigkeit bewegbar. Dabei besitzt die Schneidklinge 54 in Längsrichtung des Durchtrittsschlitzes 45 einander gegenüberliegende Schneidkanten 55, und ein Trennschnitt durch die Materialbahn 21 kann bei jeder Bewegung der Schneidklinge 54 von Stirnende zu Stirnende der Walze 19 mit der jeweils vorauslaufenden Schneidkante 55 durchgeführt werden.The separating knife 46 is the one illustrated in FIGS. 4 and 5 Embodiment of a narrow upstanding cutting blade 54 formed with a free cutting edge end area through the passage slot 45 protrudes so that it the roller shell 35, i. slightly exceeds the outer circumference 34 of the roller 19. to Carrying out a cut through the material web 21 is the cutting blade 45 from one end to the other end of the roller 19 linearly along the passage slot 45 movable at high speed. there the cutting blade 54 has in the longitudinal direction of the passage slot 45 opposing cutting edges 55, and a separating cut through the material web 21 can with every movement of the cutting blade 54 from the forehead to the front of the roller 19 with the leading one Cutting edge 55 are performed.

Die lineare Bewegung der Schneidklinge 54 entlang dem Durchtrittsschlitz 45 erfolgt mittels eines Druckmediumantriebs, der von einem doppeltwirkenden druckmediumbetätigten Arbeitszylinder 56 gebildet ist. Als Druckmedium zur Betätigung des Arbeitszylinders 56 kommt vorzugsweise Druckluft in Betracht. Der Zylinder 56 ist im Außenteil 49 des dreikammerigen Trennkörpers 40 auf einer Innenwand 57 mit seinen beiden endseitigen Anschlußteilen 58 und 59 abgestützt. Zwischen den beiden Anschlußteilen 58 und 59 erstreckt sich ein Verbindungsrohr 60. Die Schneidklinge 54 ist von einem kolbenstangenlosen Kolben (nicht dargestellt) abgestützt und mit diesem über einen schmalen Zwischensteg 61 verbunden, der mit engem Bewegungsspiel in einem dem Durchtrittsschlitz 45 im Walzenmantel 35 gegenüberliegenden Führungsschlitz des Verbindungsrohrs 60 des Arbeitszylinders 56 geführt ist. Der Arbeitszylinder 56 erstreckt sich im wesentlichen über die gesamte axiale Länge der Walze 19, wobei für das Verbindungsrohr 60 und den in diesem geführten Kolben ein ineinanderpassendes Rund- oder Polygonprofil, beispielsweise das aus Fig. 5 ersichtliche Rechteckprofil vorgesehen ist.The linear movement of the cutting blade 54 along the Passage slot 45 is made by means of a pressure medium drive, that of a double-acting pressure medium operated Working cylinder 56 is formed. As a print medium comes preferably to actuate the working cylinder 56 Compressed air into consideration. The cylinder 56 is in the outer part 49 of the three-chamber separating body 40 on an inner wall 57 supported with its two end connection parts 58 and 59. Extends between the two connecting parts 58 and 59 a connecting tube 60. The cutting blade 54 is from a rodless piston (not shown) supported and with this over a narrow Intermediate web 61 connected with a tight movement in one opposite the passage slot 45 in the roller jacket 35 Guide slot of the connecting tube 60 of the Working cylinder 56 is guided. The working cylinder 56 extends essentially over the entire axial Length of the roller 19, wherein for the connecting tube 60 and the piston guided in this one fits into each other Round or polygonal profile, for example that from FIG. 5 apparent rectangular profile is provided.

Die Druckluftzufuhr zum Arbeitszylinder 56 erfolgt über eine an sich bekannte Dreheinführung 62 mit zwei Zuführkanälen, die über äußere Anschlüsse 63 und 64 mit einer Druckluftzuleitung in Verbindung stehen. Über einen Gewindezapfen 65 ist die Dreheinführung 62 mit einem stirnseitigen Lagerzapfen 66 der Walze 19 fest verschraubt. Der Lagerzapfen 66 hat in seinem Inneren zwei konzentrische Kanäle 67 und 68, die mit den beiden Druckluftkanälen der Dreheinführung 62 in Verbindung stehen. Vom Kanal 67 führt eine Leitung 69 zum Anschlußteil 58 des Arbeitszylinders 56, während vom Kanal 68 eine Leitung 70 zum Anschlußteil 59 des Arbeitszylinders 56 führt.The compressed air supply to the working cylinder 56 takes place via a known rotary inlet 62 with two feed channels, the external connections 63 and 64 with a Compressed air supply line in connection. Via a threaded pin 65 is the rotary entry 62 with an end Bearing journal 66 of the roller 19 screwed tight. The Bearing journal 66 has two concentric ones inside Channels 67 and 68, which are connected to the two compressed air channels Rotary inlet 62 are connected. Leading from channel 67 a line 69 to the connecting part 58 of the working cylinder 56, while from line 68 a line 70 to the connector 59 of the working cylinder 56 leads.

Die mit dem Zylinderkolben verbundene Messerklinge 54 ist in Fig. 4 in einer ihrer beiden Endpositionen nahe der Stirnwand 36 gezeigt, in der der Zylinderkolben an den Anschlußteil 58 angrenzt. Zur Duchführung eines Schneidvorgangs wird dem Anschlußteil 58 über die Leitung 69 Druckluft mit hohem Druck zugeführt, so daß sich die kolbengestützte Schneidklinge 54 schlagartig entlang dem Durchtrittsschlitz 45 zur Stirnwand 37 der Walze 19 hin bewegt und dabei, ohne ein Zusammenwirken mit einem Gegenmesser, einen im wesentlichen rechtwinkligen Trennschnitt durch die Materialbahn 21 ausführt. Die Endstellung der Messerklinge 54 nahe der Stirnwand 37 entspricht der in Fig. 4 gezeigten Stellung nahe der Stirnwand 36, d.h. der Zylinderkolben mit der Messerklinge 54 befindet sich kurz vor dem Anschlußteil 59, um bei Druckbeaufschlagung der Verbindungsleitung 70 und damit des Anschlußteils 59 wiederum schlagartig in entgegengesetzter Richtung entlang dem Durchtrittsschlitz 45 zur Ausführung eines Trennschnittes durch die Materialbahn 21 getrieben zu werden.The knife blade 54 connected to the cylinder piston is 4 in one of its two end positions near the End wall 36 shown, in which the cylinder piston to the connecting part 58 adjacent. For performing a cutting process becomes the connector 58 via line 69 compressed air fed at high pressure so that the piston-based Cutting blade 54 abruptly along the passage slot 45 moved to the end wall 37 of the roller 19 and without interacting with a counter knife, through a substantially rectangular cut executes the material web 21. The end position of the knife blade 54 near the end wall 37 corresponds to that in FIG. 4 position shown near the end wall 36, i.e. the Cylinder piston with knife blade 54 is short before the connector 59 to pressurize the Connecting line 70 and thus the connecting part 59 again suddenly in the opposite direction the passage slot 45 for performing a separating cut to be driven by the web of material 21.

Der Lagerzapfen 66 dient im übrigen, ebenso wie ein weiterer Lagerzapfen 71 in der Stirnwand 37, in an sich bekannter Weise dem Drehantrieb der Walze 19. Dabei ist der Lagerzapfen 71 ebenfalls mit einer Dreheinführung versehen, die hier mit 72 bezeichnet ist. Im Gegensatz zur Dreheinführung 62 besitzt die Dreheinführung 72 nur einen zentralen Druckmediumkanal, der über einen äußeren Anschluß 73 mit einer Druckmediumzuleitung verbunden ist. Über einen hohlen Gewindezapfen 74 steht der zentrale Druckmediumkanal mit einem inneren Druckmediumkanal 75 des Lagerzapfens 71 in Verbindung, von dessen innerem Ende die Druckmediumleitung 51 für die Versorgung des Druckraums 41 oder 42 mit Luft als Druckmedium ausgeht. Der Druckmediumkanal 75 ist über die Dreheinführung 72 wahlweise mit einer äußeren Unterdruckquelle oder einer Überdruckquelle durch einen entsprechenden Umschaltungsvorgang im Zuleitungssystem verbindbar.The bearing pin 66 serves, moreover, as well as a further journal 71 in the end wall 37, in itself known manner, the rotary drive of the roller 19. It is the bearing journal 71 is also provided with a rotary entry, which is designated here with 72. In contrast to Rotary inlet 62 has only one rotary inlet 72 central pressure medium channel, which has an external connection 73 is connected to a pressure medium supply line. The central one stands over a hollow threaded pin 74 Pressure medium channel with an inner pressure medium channel 75 des Bearing pin 71 in connection, from the inner end of which Pressure medium line 51 for supplying the pressure space 41 or 42 goes out with air as the pressure medium. The pressure medium channel 75 is optionally available with the rotary entry 72 an external negative pressure source or a positive pressure source through a corresponding switchover process in the supply system connectable.

Die Verbindung mit einer äußeren Unterdruckquelle bedeutet, daß durch die Durchtrittsbohrungen 43 oder 44 Luft aus der Umgebung angesaugt bzw. eine über den Durchtrittsbohrungen 43 oder 44 liegende Materialbahn in diesem Bereich an den Walzenumfang 34 angesaugt wird. Bei Umschaltung von der Unterdruckquelle auf die Überdruckquelle wird dem Druckmediumkanal 75 und damit über die Leitung 51 dem Druckraum 41 oder 42 Drucklauft mit einem solchen Überdruck zugeführt, daß die zuvor im Bereich der Durchtrittsbohrungen 43 oder 44 festgehaltene Materialbahn durch die auf die Durchtrittsbohrungen 43 bzw. 44 wirkende Druckluft vom Walzenumfang 34 abgestoßen wird, um, bei dem vorstehend beschriebenen Anwendungsfall, auf der Wickelhülse einer neuen Wickelwelle 13 im Zuge der Durchführung eines Rollenwechels festgelegt zu werden.The connection with an external vacuum source means that through the through holes 43 or 44 air sucked in from the environment or one above the through holes 43 or 44 lying material web in this area is sucked onto the roller circumference 34. When switching from the negative pressure source to the positive pressure source becomes the pressure medium channel 75 and thus via line 51 the pressure chamber 41 or 42 with such a pressure Pressure supplied that previously in the area of Through holes 43 or 44 held material web by acting on the through bores 43 and 44 respectively Compressed air is expelled from the roller circumference 34 in order to Application described above, on the winding tube a new winding shaft 13 in the course of the implementation of a change of roles.

Bei dem Ausführungsbeispiel einer als Gegenwalze eines Wicklers einsetzbaren Schneid- und Transportwalze 19 gemäß Fig. 6 werden für mit dem Ausführungsbeispiel gemäß den Figuren 4 und 5 gleiche bzw. übereinstimmende Bauteile die gleichen Bezugszeichen ohne nochmalige Beschreibung verwendet.In the embodiment of a counter roll one Winder usable cutting and transport roller 19 according to Fig. 6 will for with the exemplary embodiment according to FIGS. 4 and 5 same or corresponding components have the same reference numerals used without repeated description.

Bei dem Ausführungsbeispiel gemäß Fig. 6 ist das Trennmesser 46 von einer Schneidklinge 76 mit einer äußeren Schneidkante 77 gebildet, deren Länge im wesentlichen gleich der des Durchtrittsschlitzes 45 ist. Die Schneidkante 77, die nach Art eines Zackenmessers geformt ist, ist normalerweise, wie dies Fig. 6 veranschaulicht, innerhalb des Durchtrittsschlitzes 45 gehalten, ohne den Walzenumfang 34 zu überragen. Zur Durchführung eines Trennschnittes durch die Materialbahn 21 quer zu deren Laufrichtung wird die Schneidklinge 76 kurzzeitig mit hoher Geschwindigkeit in radialer Richtung des Walzendurchmessers aus dem Durchtrittsschlitz 45 heraus- und wieder zurückbewegt.6 is the cutting knife 46 from a cutting blade 76 with an outer Cutting edge 77 formed, the length of which is substantially is equal to that of the passage slot 45. The cutting edge 77, which is shaped like a serrated knife, is normally within, as illustrated in Figure 6 of the passage slot 45 held without the To protrude roller circumference 34. To carry out a Separating cut through the material web 21 transversely to their The cutting blade 76 is briefly with the direction of travel high speed in the radial direction of the roller diameter out of the passage slot 45 and moved back again.

Hierzu sind doppeltwirkende druckmediumbetriebene Hubzylinder 78, vorzugsweise Druckluftzylinder, in den beiden Endbereichen der Schneidklinge 76 vorgesehen, die an die jeweilige Walzenstirnwand 36 bzw. 37 angrenzen. Die Hubzylinder 78 sind jeweils auf der Innenwand 57 des Trennkörpers 40 abgestützt. Die Kolbenstange 79 des jeweiligen Hubzylinders 78 ist an der Innenseite der Schneidklinge 76 befestigt. Für den Vor- und Rückhub des Kolbens der Hubzylinder 78 sind in an sich bekannter Weise beidseits der Stirnseiten des Kolbens einmündende Druckmediumzuführleitungen 80 und 81 vorgesehen. Die Versorgung der Leitungen 80 und 81 erfolgt über eine Dreheinführung 62 und einem Lagerzapfen 66 gemäß Fig. 4, wie auch der andere, in Fig. 6 nicht zur Darstellung kommende Lagerzapfen dem Lagerzapfen 71 gemäß Fig. 4 entspricht. For this purpose, double-acting pressure medium-operated lifting cylinders are used 78, preferably air cylinders, in the two End regions of the cutting blade 76 provided that the adjoin the respective roller end wall 36 or 37. The lifting cylinders 78 are each on the inner wall 57 of the separating body 40 supported. The piston rod 79 of the respective Lift cylinder 78 is on the inside of the cutting blade 76 attached. For the forward and return stroke of the piston of the lifting cylinder 78 are on both sides of the Pressure medium supply lines leading into the end of the piston 80 and 81 are provided. The supply of the Lines 80 and 81 take place via a rotary entry 62 and a journal 66 according to FIG. 4, as well as the other bearing journals not shown in FIG. 6 corresponds to the journal 71 according to FIG. 4.

In Fig. 1 ist die Wickelvorrichtung im laufenden Wickelbetrieb dargestellt, wobei die zulaufende Materialbahn 21 unter Umschlingung der Umlenkrolle 27 über die Gegenwalze 19 der im Uhrzeigersinn umlaufenden Wickelrolle 24 zugeführt wird. In der Arbeitsstation I ist bereits eine neue Wickelwelle 13 eingesetzt worden.In Fig. 1 the winding device is in the ongoing winding operation shown, the incoming material web 21st while wrapping the deflection roller 27 over the counter roller 19 of the winding roller 24 rotating in the clockwise direction becomes. There is already a new one in workstation I. Winding shaft 13 has been used.

Die. Fig. 2 zeigt die im Uhrzeigerdrehsinn fertiggewickelte Wickelrolle 24, kurz bevor in der Arbeitsstation I ein neuer Bahnanfang auf die Wickelwelle 13 aufgewickelt wird. Der Rollenwechsel wird in der Weise eingeleitet, daß bei Erreichen eines bestimmten Wickeldurchmessers für die Wickelrolle 24 ein Steuersignal gegeben wird, durch das, beim Aufwickeln im Uhrzeigersinn, der Druckraum 42 von der äußeren Unterdruckquelle her einen Unterdruck aufbaut, so daß durch die Durchtrittsbohrungen 44 im Walzenmantel 35 die zulaufende Materialbahn 21 an den Walzenumfang 34 der Gegenwalze 19 angesaugt wird. Der Schneidvorgang mittels des Trennmessers 46 erfolgt durch entsprechende Antriebsansteuerung während der kontinuierlichen Zuführung der Materialbahn 21 zwischen der Umlenkwalze 27 und der neuen Wickelwelle 13. Die Umlenkwalze 28 befindet sich hierbei in ihrer Ruhestellung. The. Fig. 2 shows the fully wound clockwise Winding roll 24 just before in the work station I wound a new path start on the winding shaft 13 becomes. The role change is initiated in such a way that when a certain winding diameter is reached for the Is given a control signal by which when winding in a clockwise direction, the pressure chamber 42 from the external negative pressure builds up a negative pressure, so that through the through holes 44 in the roller jacket 35th the incoming material web 21 on the roller circumference 34 of the Counter roll 19 is sucked. The cutting process by means of of the cutting knife 46 is carried out by appropriate drive control during continuous feeding the material web 21 between the deflection roller 27 and the new winding shaft 13. The deflection roller 28 is located here in their rest position.

Das mittels des Trennmessers 46 schlagartig abgetrennte Bahnende wird über die Durchtrittsbohrungen 44 des Druckraums 42 aufgrund des herrschenden Unterdrucks weiterhin an den Walzenumfang 34 angepreßt und dadurch von dieser weitertransportiert, bis die nunmehr in Drehbewegung versetzte neue Wickelwelle 13 erreicht ist. Sobald das abgetrennte Bahnende die Kontaktlinie zwischen der Gegenwalze 19 und der auf die Wickelwelle 13 aufgeschobenen Wickelhülse erreicht, wird eine Umsteuerung in der Weise vorgenommen, daß der Druckraum 42 mit der äußeren Überdruckquelle verbunden wird, so daß der Druckraum 42 mit Überdruck bzw. Druckluft beaufschlagt wird. Dieses hat zur Folge, daß sich das Bahnende der Materialbahn 21 von der Gegenwalze 19 löst und als neuer Bahnanfang auf die beispielsweise mit Klebestreifen bestückte Wickelhülse der neuen Wickelwelle 13 übergeben wird.The one cut off suddenly by means of the separating knife 46 Web end is through the passage bores 44 of the pressure chamber 42 due to the prevailing negative pressure pressed against the roller circumference 34 and thereby by this transported further until it was now set in rotation new winding shaft 13 is reached. Once the severed End of web the contact line between the counter roll 19 and the winding sleeve pushed onto the winding shaft 13 reached, a reversal is carried out in such a way that the pressure chamber 42 with the external pressure source is connected so that the pressure chamber 42 with overpressure or compressed air is applied. This has to Consequence that the web end of the web 21 of the Counter roller 19 triggers and as the new start of the web on the example winding sleeve equipped with adhesive strips new winding shaft 13 is passed.

Abgesehen von den Drehrichtungen und dementsprechend der Zuführung der Materialbahn 21 über die Umlenkwalze 28 veranschaulicht die Fig. 3 einen Momentanzustand des Wickelvorgangs entsprechend Fig. 2. Der Rollenwechsel erfolgt hierbei im Prinzip in der gleichen Weise wie anhand der Fig. 2 beschrieben, wobei jedoch die Saugwirkung über die Durchtrittsbohrungen 43 des Druckraums 41 entsprechend der Drehrichtung der Gegenwalze 19 an deren Walzenumfang 34 angelegt wird und die Quertrennung mittels des Messers 46 zwischen der Umlenkwalze 28 und der Kontaktlinie zwischen der Gegenwalze 19 und der Wickelrolle 24 erfolgt. Das abgetrennte angesaugte Bahnende wird sodann in der beschriebenen Weise weitertransportiert und an die neue Wickelwelle 13 übergeben. Es schließen sich sodann die im Zusammenhang mit Fig. 2 erläuterten Vorgänge an.Apart from the directions of rotation and accordingly the Feeding the material web 21 via the deflecting roller 28 illustrated 3 shows an instantaneous state of the winding process corresponding to Fig. 2. The role change takes place in principle in the same way as with the Fig. 2 described, but the suction effect on the Through holes 43 of the pressure chamber 41 corresponding to the Direction of rotation of the counter roll 19 on its roll circumference 34 is applied and the cross separation by means of the knife 46 between the deflecting roller 28 and the contact line between the counter roller 19 and the winding roller 24. The severed sucked web end is then described in the Were transported further and to the new one Pass winding shaft 13. Then close in In connection with Fig. 2 explained processes.

Während der Entnahme der Wickelrolle 24 aus der Arbeitsstation II besteht ausreichend Zeit, einem Wickelwellenmagazin eine neue Wickelwelle 13 zu entnehmen, mit einer Wickelhülse, üblicherweise aus Pappe mit äußerem Klebestreifen, zu versehen und in der Arbeitsstation I in Position zu bringen, um sie zur Durchführung des Anwickelvorgangs rechtzeitig in der vorgegebenen Drehrichtung in Drehung zu versetzen. Die Verriegelung der Wickelwellen 12 und 13 in ihrem jeweiligen Führungsschlitz 10 des Schwenklagers 3 kann mit geeigneten Mitteln, die dem Fachmann auf diesem Gebiet ohne weiteres zur Verfügung stehen, zum Beispiel mittels einer Klauensicherung, durchgeführt werden.During the removal of the winding roll 24 from the work station II there is sufficient time, a winding shaft magazine to take a new winding shaft 13, with a Winding tube, usually made of cardboard with external adhesive strip, to be provided and in the workstation I in Bring position to carry out the start-up process in time in the specified direction of rotation To turn. Locking the winding shafts 12 and 13 in their respective guide slot 10 of the pivot bearing 3 can with suitable means that the expert on readily available in this area, for example by means of a claw protection.

Der Rollenwechsel gestaltet sich schnell und problemlos einfach, da mit der erfindungsgemäßen Schneid- und Transportwalze als Gegenwalze 19 die Materialbahn 21, ohne ihren Zulauf zu unterbrechen, mit einem Minimum an Zeitaufwand quergetrennt und der neue Bahnanfang sicher auf die neue Wickelwelle 13 transportiert werden kann.The roll change is quick and easy simply because with the cutting and transport roller according to the invention as counter roll 19, the material web 21 without interrupt their influx with a minimum of time cross-separated and the new start of the web is safe the new winding shaft 13 can be transported.

Es versteht sich, daß die erfindungsgemäße Schneid- und Transportwalze 19 nicht nur als Gegenwalze mit einer Rollenwechseleinrichtung in einer Vorrichtung zum Aufwickeln von kontinuierlich zulaufenden Folien-, Papierund dgl. Materialbahnen der vorstehend beschriebenen Art geeignet ist, sie eignet sich vielmehr auch in anderen Anwendungsfällen zur Erfüllung gleicher oder ähnlicher Aufgaben und insbesondere auch für einen Einsatz in anderen Wickelvorrichtungen, die insbesondere nicht mit einem eine Anwickelstation und eine Fertigwickelstation ausbildenden Schwenklager arbeiten, bei denen vielmehr nur eine Wickelstation vorgesehen ist, die zum An- und Fertigwickeln der jeweiligen Materialrolle dient.It is understood that the cutting and Transport roller 19 not only as a counter roller with a Reel changing device in a winding device of continuously running film, paper and Like. Material webs of the type described above is suitable, rather it is also suitable in other applications to perform the same or similar tasks and especially for use in others Winding devices, in particular not with a one Forming station and a finishing station Swivel bearings work, in which rather only one winding station is provided for the winding and finishing of the serves the respective material roll.

Claims (12)

  1. Cutting and transport cylinder for material webs, particularly counter-roll in a device for winding continuously fed film, paper and similar material webs (21), wherein a separating element (40) is inserted in the inner cavity of the cylinder (19), which element, with the cylinder circumference (34), bounds at least one pressure space (41; 42) connected to the surrounding area by penetration holes (43, 44) in the cylinder jacket (35) and extending essentially throughout the axial cylinder length, the cylinder circumference (34) outside the area of the penetration holes (43, 44) is also provided with a penetration slot (45) for a separating cutter supported in the inner cavity of the cylinder (19), which slot also extends essentially throughout the axial cylinder length, and wherein the separating element (40) is designed as a hollow profile element with at least one connecting chamber (47) for pressure medium fed from an outer pressure medium source, and its feed into the pressure space (41; 42), characterised in that the hollow profile element exhibits a multi-chamber profile in which the connecting chamber (47) is formed from a central chamber of the multi-chamber profile accommodating the cylinder shaft (20), and where the separating cutter (46) is supported in the area between the chamber and the penetration slot (45), and in that the separating element (40) extends diametrically on both sides of a diametric plane (50) containing the separating cutter (46) and its penetration slot (45), through the inner cavity of the cylinder (19), and is rigidly connected at its radial ends to the inner jacket (38) of the cylinder (19).
  2. Roll according to claim 1. characterised in that two pressure spaces (41, 42) are designed with penetration holes (43, 44) in the cylinder jacket (35) on both sides of the separating element (40), on which holes can be placed a feed pipe for connection to the outer pressure medium source.
  3. Cylinder according to claim 2, characterised in that the areas of the penetration holes (43, 44) of the two pressure spaces (41, 42) are arranged diametrically opposite one another in the cylinder jacket (35).
  4. Cylinder according to one of claims 1 to 3, characterised in that the separating cutter (46) is formed from a narrow vertical cutting blade (54), which, with a free cutting edge end area, projects from the outer cylinder circumference (34) through the penetration slot (45), and can be moved linearly along the penetration slot (45), from one front end to the other front end of the cylinder (19), for performing a separating cut.
  5. Roll according to claim 4, characterised in that the cutting blade (54) exhibits opposing cutting edges (55) in the longitudinal direction of the penetration slot (45), for performing a separating cut during each movement of the cutting blade (54) from front end to front end of the cylinder (19) by means of the advancing cutting edge (55).
  6. Cylinder according to claim 4 or 5, characterised in that the cutting blade (54) can be moved by means of a pressure medium drive along the penetration slot (45).
  7. Cylinder according to claim 6, characterised in that the pressure medium drive is formed from a double-acting pressure medium actuated working cylinder (56) with a piston having no piston rod and supporting the cutting blade (54), which piston extends essentially throughout the axial length of the cylinder (19) and has pressure medium connections (58, 59) close to both front ends of the cylinder (19).
  8. Cylinder according to claim 7, characterised in that the cutting blade (54) is connected to the piston by a narrow intermediate bridge (61), which is guided with a narrow movement cycle in a guide slot of the working cylinder (56) opposing the penetration slot (45) in the cylinder jacket (35).
  9. Roll according to one of claims 1 to 3, characterised in that the separating cutter (46) is formed from a cutting blade (76) with an outer cutting edge (77) whose length is essentially equal to that of the penetration slot (45), and in that the cutting edge (77) is normally retained within the penetration slot (45) and can be moved out of the penetration slot (45) for a short time to perform a separating cut.
  10. Cylinder according to claim 9, characterised in that the cutting blade (76) is designed as a toothed cutter blade.
  11. Cylinder according to one of claims 1 to 10, characterised in that it incorporates for its rotary drive two front bearing journals (66, 71), one bearing journal (663 of which is provided with integrated pressure medium ducts (67, 68) for activating the working cylinder or cylinders (56;78) actuating the separating cutter (46).
  12. Cylinder according to one of claims 1 to 11, characterised in that of the two front bearing journals (66, 71) for the rotary drive of the cylinder (19), one bearing journ (71) is provided with an integrated pressure medium duct (75) for supplying the pressure space (41;42) with a pressure medium, and in that the pressure medium duct (75) can be connected either to an outer vacuum or excess pressure source as pressure source.
EP95111590A 1994-08-17 1995-07-24 Cutting and transport cylinder for webs Expired - Lifetime EP0698571B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9413238U DE9413238U1 (en) 1994-08-17 1994-08-17 Device for winding material webs with a cutting and transport roller
DE9413238U 1994-08-17

Publications (3)

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EP0698571A2 EP0698571A2 (en) 1996-02-28
EP0698571A3 EP0698571A3 (en) 1998-01-28
EP0698571B1 true EP0698571B1 (en) 2002-06-05

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EP95111590A Expired - Lifetime EP0698571B1 (en) 1994-08-17 1995-07-24 Cutting and transport cylinder for webs

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US (1) US5848761A (en)
EP (1) EP0698571B1 (en)
JP (1) JPH0867378A (en)
AT (1) ATE218492T1 (en)
CA (1) CA2156201C (en)
DE (2) DE9413238U1 (en)
DK (1) DK0698571T3 (en)
ES (1) ES2177595T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US7967176B2 (en) 2003-05-14 2011-06-28 Windmoeller & Hoelscher Kg Cutting and transport cylinder in a winding device for winding material webs

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US7967176B2 (en) 2003-05-14 2011-06-28 Windmoeller & Hoelscher Kg Cutting and transport cylinder in a winding device for winding material webs
DE102004013649B3 (en) * 2004-03-19 2005-09-29 Kiefel Extrusion Gmbh Transport and cutting roller for a material web, on winding into a roll, has two inner moving cutting blades in angled slits at the roller mantle to prevent a side shift and turning of the cut section of the web

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DE9413238U1 (en) 1994-10-13
CA2156201C (en) 2002-10-22
DK0698571T3 (en) 2002-09-16
US5848761A (en) 1998-12-15
DE59510223D1 (en) 2002-07-11
JPH0867378A (en) 1996-03-12
ATE218492T1 (en) 2002-06-15
CA2156201A1 (en) 1996-02-18
ES2177595T3 (en) 2002-12-16
EP0698571A2 (en) 1996-02-28
EP0698571A3 (en) 1998-01-28

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