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EP0288814B1 - Dispositif pour subdiviser une bande de papier sans fin avec un plissement en accordéon - Google Patents

Dispositif pour subdiviser une bande de papier sans fin avec un plissement en accordéon Download PDF

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Publication number
EP0288814B1
EP0288814B1 EP19880105782 EP88105782A EP0288814B1 EP 0288814 B1 EP0288814 B1 EP 0288814B1 EP 19880105782 EP19880105782 EP 19880105782 EP 88105782 A EP88105782 A EP 88105782A EP 0288814 B1 EP0288814 B1 EP 0288814B1
Authority
EP
European Patent Office
Prior art keywords
separating member
stack
paper
resting surface
starting position
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
EP19880105782
Other languages
German (de)
English (en)
Other versions
EP0288814A1 (fr
Inventor
Oscar Roth
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.)
Involvo AG
Original Assignee
Involvo AG
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
Priority claimed from CH149587A external-priority patent/CH672482A5/de
Priority claimed from CH386787A external-priority patent/CH676842A5/de
Application filed by Involvo AG filed Critical Involvo AG
Priority to AT88105782T priority Critical patent/ATE76036T1/de
Publication of EP0288814A1 publication Critical patent/EP0288814A1/fr
Application granted granted Critical
Publication of EP0288814B1 publication Critical patent/EP0288814B1/fr
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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/1015—Folding webs provided with predefined fold lines; Refolding prefolded webs, e.g. fanfolded continuous forms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1123—Folded article or web
    • B65H2701/11231—Fan-folded material or zig-zag or leporello
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/371—Movable breaking tool
    • Y10T225/379—Breaking tool intermediate spaced work supports

Definitions

  • the present invention relates to a device according to the preamble of claim 1.
  • Such devices are known for example from DE-A-3502176.
  • a finished stack is separated from the trailing paper web at its upper end by a separating device which can be moved transversely in a horizontal plane.
  • This device has the disadvantage that it only works if the folds of the paper web are squeezed completely flat. Only then will the individual sheets lie completely plane-parallel on one another in the parting plane. This ideal state is only achieved in rare cases using the folding or perforating tools.
  • the paper relaxes slightly in the area of the folds after the folding, as a result of which a stack is formed on the support plane 65, the top sheets of which are concavely curved in plan view. Only the lowest arches are level.
  • the present invention therefore has the task of improving a device according to DE-A-3502176 in such a way that the finished stack is separated as reliably as possible along a fold by the separating device. This object is achieved by the characterizing features of claim 1.
  • claims 1 to 3 serve to achieve the goal specified by the task even with changing paper formats or with changing quality of the paper or the folding or perforating tools.
  • a first conveyor section 2 ends in a machine stand 1, with which a zigzag-folded paper web 3 (FIG. 3) is fed in a scale formation.
  • the paper web 3 passes over a deflecting roller 4, where it is deflected and falls into a vertical stacking shaft 5 and piled up therein to form a stack 6.
  • the deflection roller 4 is formed by a plurality of circular disks arranged next to one another on a shaft 4 ⁇ , around which the endless belts 2 ⁇ forming the conveying path are guided.
  • the shaft 4 ⁇ is driven by a motor M.
  • the stacking shaft 5 has guides 7, 7 ⁇ on opposite sides, which form vertical guide planes 8 and 9 in a side view according to FIG. 1.
  • the stack 6 forming in the stacking shaft 5 lies with its vertical sides containing the folds of the paper web against the guide planes 8, 9 on.
  • the guides 7 have in their lower region driven, endless belts, the mutually facing strands lying in the guide planes 8, 9 of which move downward and press the adjacent folds downward with a loose friction fit.
  • the distance of the guide 7 ⁇ from the guide 7 can be set according to the format to be processed. The same applies with respect to any side guides that form 2 vertical guide planes parallel to the conveying direction of the conveying path.
  • the stacking shaft 5 is delimited at the bottom by four parallel plates 10 spaced apart from one another, which have a circular segment shape at the top and form a cambered bearing surface 11 for the stack 6.
  • the apex of the support surface 11 runs transversely to the conveying direction of the conveyor path 2 or parallel to the guide planes 8, 9.
  • the cambered shape of the support surface 11 compensates for the height difference in the stack 6, which difference between the two stacked sides provided with the folds (which against the guide levels 8 and 9 lie) and the stack center results. Through this height compensation, those sheets of the paper web are aligned horizontally, which are in the area of the upper end of the guides 7 and 7 ⁇ .
  • the plates 10 are held by a cross piece 12, the ends of which are fastened to threaded sleeves 13.
  • the threaded sleeves 13 are screwed onto spindles 14 which can be driven by a motor M2.
  • the plates 10 can be displaced between an upper and a lower end position, as is indicated in FIG. 1 by dash-dotted lines. In the upper end position, the plates 10 are below, however, close to the displacement path of a separating knife 15, whereas in the lower end position they are below a removal path 16.
  • the separating knife 15 has an arrowed, blunt cutting edge 18. At least on its upper side, the separating knife 15 is provided with air outlet nozzles 17 which are connected via air ducts to a blown air source, not shown.
  • a pneumatic cylinder-piston unit 19 moves the separating knife 15 from its rest position shown in solid lines to an end position shown in dash-dotted lines, in which the cutting edge 18 lies beyond the stacking shaft 5.
  • the cutting knife 15 moves through slot-shaped openings 20 and 21 in the guide levels 8 and 9, respectively.
  • the described device works as follows. At the start of the stack formation, the plates 10 are in the upper end position, the separating knife 15 being withdrawn into the rest position. The paper web 3 transported in scale formation falls over the deflection roller 4 onto the in the top view convex bearing surface 11 and stacks between the guide planes 8 and 9. The plates 10 are now moved downwards by rotating the spindles 14, so that a stack 6 of the desired height is formed on the plates 10 between the guides 7 and 7 ' . The lowermost sheets of the stack hang laterally downwards, whereas the sheets located in the region of the displacement path of the separating knife 15 are aligned horizontally.
  • the cylinder-piston unit 19 is pressurized with compressed air, so that the separating knife 15 shoots forward and separates the stack 6 from the subsequent paper web along a fold.
  • the plates 10 are lowered to below the transport path 16 and the stack 6 formed is placed thereon and transported away.
  • the plates 10 are then moved upwards against the separating knife 15, on which the beginning of the next stack 6 has meanwhile formed.
  • the separating knife 15 is moved back and the new stack started on it is placed on the plates 10.
  • the air passing through the air outlet nozzles 17 forms an air cushion under the newly forming stack, so that the bottom sheet of the new stack does not shift during the return stroke of the separating knife 15.
  • the plates 10 are now continuously lowered again until the new stack has been completely formed, whereupon the separating knife 15 is actuated again and the process described is repeated.
  • the separating knife 15 has a flat hollow plate 22, the interior of which is connected to a compressed air source, not shown, for supplying the blown air nozzles 17.
  • the separating knife 15 is slidably mounted with four bearings 23 on two parallel guide rods 24 which are firmly connected to the machine stand 1.
  • the guide rods 24 are angled slightly in the top view (FIG. 5) to the conveying directions of the conveying sections 2 and 16.
  • the blunt cutting edge 18 of the cutting knife 15 forms a roller 25 which is rotatably mounted on the hollow plate 22 and is oriented at right angles to the guide rods 24.
  • This roller is driven by a motor M3 by means of a flexible shaft both during the advance and the return and in such a way that it rolls on the paper sheet above. That is, in the view according to FIGS. 1, 4 and 6, the roller rotates clockwise during the advance and counterclockwise during the return. This prevents the roller 25 from compressing the paper sheet located above it during the advance or pulling it out of the stack 6 during the return.
  • the roller 25 can be driven in any way, for example also by means of an end pinion which meshes with a stationary toothed rack which runs parallel along one of the guide rods 24.
  • a plunge wedge 26 is arranged in or near the displacement path of the separating knife 15 and can be moved back and forth by means of a pneumatic drive 27 in the direction of the double arrow (FIG. 6).
  • the drive 27 is fixedly mounted on the machine stand 1.
  • An expansion wedge 28 is accommodated in the hollow and downwardly open piercing wedge 26, which is firmly connected to a pin which can be displaced vertically in the piercing wedge 26.
  • the expansion wedge 28 is moved up or down by means of an electromagnetic or pneumatic drive 30.
  • the piercing wedge 26 with the spreading wedge 28 drawn in is first inserted into the stack 6 on the side closer to the roller 25 and then the expanding wedge 28 is extended. As a result, the gap which forms in the stack 6 is spread further.
  • the expanding wedge 28 presses the underlying folds in the area of the downward-acting bands of the guides 7 ⁇ .
  • the hold-down device 31 is then pushed into this gaping gap.
  • the expanding wedge 28 is then pulled back into the starting position, the hold-down device prevents the paper from springing back.
  • the Plates 10 lowered further so that the stack 6 to be separated slowly moves downward from the paper sheets held back by the piercing wedge 26.
  • the cutting knife 15 is pushed across the stacking shaft 5 by the cylinder piston unit 19 until the cutting cut.
  • the roller 25 in the view according to FIG. 6 is driven clockwise. It rolls on the bottom of the paper sheets held back, which then lie on the air cushion forming above the nozzles 17 with little friction.
  • the piercing wedge 26 and the hold-down device 31 can be returned to their rest position.
  • the separating knife 15 is withdrawn under the stack which is newly formed thereon, the roller 25 preferably being driven in a counterclockwise direction.
  • the friction between the separating knife 15 and the paper sheet lying directly on it is so low that it does not adhere to the separating knife 15 and is pulled out of the stack with it.
  • Another significant difference from the first exemplary embodiment lies in the arrangement of the plates 10 forming the support surface 11. These are fastened to parallel support strips 33, each of which is firmly connected to the transverse web 12, by means of a screw 34. This is through a vertical slot 35 passed through in the plate 10. By loosening the screws 34, the plates 10 can be adjusted vertically relative to the associated support bar 33 so that they protrude more or less. The curvature imposed on the underside of the stack lying on it can thus be selected to a greater or lesser extent. The adjustability of the curvature is advantageous if paper sheets of different stiffness are processed and nevertheless a horizontal alignment of the sheet layers is always to be achieved in the plane of the separating knife 15.
  • other means such as balls or rollers, may be present on the top of the separating knife 15 for reducing friction on its upper side, instead of the means for forming an air cushion, in order to achieve rolling friction.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (6)

  1. Dispositif pour subdiviser une bande de papier (3) sans fin par un pliage en accordéon, comportant un chemin de transfert (5) essentiellement vertical délimité à sa base par une surface d'appui (11), avec deux organes de guidage (7, 7') latéraux formant deux plans de guidage (8, 9) verticaux pour les plis de la bande de papier, ainsi qu'un organe de séparation (15), plat avec un tranchant (18) entre le point d'entrée (4) et la surface d'appui (11), et qui est mobile dans un plan horizontal à partir d'une position de sortie située en dehors du chemin de transfert (5), transversalement à travers ce chemin et une seconde position de l'autre côté du chemin de transfert (5), ainsi qu'un coin d'enfoncement agissant dans le plan horizontal, et qui est poussé dans le chemin de transfert (5) en avant de l'organe séparateur (15), pour ouvrir une pile (6) du côté de l'arête (18), lorsque l'organe séparateur (15) passe de sa position de repos à sa seconde position, caractérisé en ce que la surface d'appui (11) qui délimite le chemin de transfert (5) est orientée de manière convexe en vue de dessus avec son sommet parallèle au plan de guidage (8, 9) et en ce que les organes de guidage (7, 7') présentent des brins agissant vers la surface d'appui (11) et frottant sur les plis de la bande de papier.
  2. Dispositif selon la revendication 1, caractérisé en ce que la distance réciproque des brins des organes de guidage (7, 7') est réglable pour modifier la distance des plans de guidage (8, 9) en fonction de la largeur de la pile.
  3. Dispositif selon la revendication 1, caractérisé en ce que la courbure de la surface d'appui (11) est réglable.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'arête de l'organe de séparation (15) est constituée par un cylindre (25) monté à rotation.
  5. Dispositif selon la revendication 4, caractérisé en ce que le cylindre (25) est entraîné de façon que lorsque l'organe séparateur (15) passe de sa position de repos à sa seconde position, son sens de rotation en surface est opposé au sens du mouvement de l'organe séparateur (15).
  6. Dispositif selon la revendication 5, caractérisé en ce que le cylindre (25) est entraîné de façon que lorsque l'organe séparateur (15) revient à partir de sa seconde position dans sa position de sortie, son sens de rotation en surface soit opposé au sens de déplacement de l'organe séparateur (15).
EP19880105782 1987-04-16 1988-04-12 Dispositif pour subdiviser une bande de papier sans fin avec un plissement en accordéon Expired - Lifetime EP0288814B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105782T ATE76036T1 (de) 1987-04-16 1988-04-12 Vorrichtung zum unterteilen einer endlosen papierbahn mit zickzackfalzung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1495/87 1987-04-16
CH149587A CH672482A5 (en) 1987-04-16 1987-04-16 Machine for cutting continuous web of zigzag folded paper
CH3867/87 1987-10-02
CH386787A CH676842A5 (en) 1987-10-02 1987-10-02 Machine for cutting continuous web of zigzag folded paper

Publications (2)

Publication Number Publication Date
EP0288814A1 EP0288814A1 (fr) 1988-11-02
EP0288814B1 true EP0288814B1 (fr) 1992-05-13

Family

ID=25687823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880105782 Expired - Lifetime EP0288814B1 (fr) 1987-04-16 1988-04-12 Dispositif pour subdiviser une bande de papier sans fin avec un plissement en accordéon

Country Status (4)

Country Link
US (1) US4842572A (fr)
EP (1) EP0288814B1 (fr)
JP (1) JPS6445594A (fr)
DE (1) DE3870978D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022210495B3 (de) 2022-10-04 2023-11-09 Heldele Automation GmbH Trennvorrichtung und Vorrichtung und Verfahren zur Herstellung von Papierblöcken

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353527A3 (fr) * 1988-08-01 1990-09-05 Oscar Roth Dispositif de désempilage d'une palette chargée d'une pile de feuilles de papier
NL8901275A (nl) * 1989-05-22 1990-12-17 Drent H H Maschf Bv Inrichting om een zig-zag gevouwen formulierenbaan in de vorm van een stapel te brengen en op een bepaalde plaats door te snijden.
US5123890A (en) * 1990-03-29 1992-06-23 G. Fordyce Company Apparatus and method for separating forms in a stack
CH680363A5 (fr) * 1990-04-19 1992-08-14 Involvo Ag
JPH0416766U (fr) * 1990-05-31 1992-02-12
US5092236A (en) * 1990-06-06 1992-03-03 Quipp Systems, Inc. Method and apparatus for stacking, aligning and compressing signatures
US5065992A (en) * 1990-06-07 1991-11-19 Roll Systems, Inc. Method for processing web material
DE4021676C1 (fr) * 1990-07-07 1991-11-21 Hilmar 5653 Leichlingen De Vits
US5087023A (en) * 1990-08-23 1992-02-11 The Standard Register Company Apparatus and method for folding separated forms in a stack
US5558318A (en) * 1991-01-15 1996-09-24 Roll Systems, Inc. Separator for forming discrete stacks of folded web
DE9102883U1 (de) * 1991-03-11 1991-05-29 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Auslegerstapel an Druckmaschinen
US5090678A (en) * 1991-05-17 1992-02-25 G. Fordyce Co. Method and apparatus of forming a separated stack of zigzag folded sheets from a main stack
CH683089A5 (de) * 1991-06-19 1994-01-14 Oscar Roth Bauteilsatz zur Herstellung einer Verpackung.
BE1006144A3 (nl) * 1992-08-19 1994-05-24 Atep Systems Nv Inrichting voor het opvangen van kettingformulieren.
US5279536A (en) * 1992-10-09 1994-01-18 Abreu Michael L Handling apparatus for a continuous web of Z-fold computer paper
DE19516071C2 (de) * 1995-05-04 1997-12-04 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zum Wechseln eines Hauptstapels an Bogendruckmaschinen bei kontinuierlicher Zuführung von Bogen
US7150383B2 (en) * 2003-09-15 2006-12-19 Geo M. Martin Company Storable transfer conveyor system
US7303524B2 (en) * 2005-07-14 2007-12-04 First Data Corporation Folder unit for processing sheet-like materials
JP7064379B2 (ja) * 2018-05-21 2022-05-10 株式会社太陽機械製作所 自動カット装置およびその方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640521A (en) * 1969-08-18 1972-02-08 Advanced Terminals Inc Apparatus for stacking fan folded paper
CA947781A (en) * 1971-02-23 1974-05-21 Raymond M. Loase Machine for folding a continuous web assembly
IT1214457B (it) * 1984-04-26 1990-01-18 Luciano Meschi Apparecchiatura di ricezione, impacchettamento e trasferimento di striscie di materiale in foglio.
DE3502176A1 (de) * 1985-01-23 1986-07-24 Bielomatik Leuze Gmbh + Co, 7442 Neuffen Vorrichtung zum falzen von materialbahnen
DE3524246A1 (de) * 1985-07-06 1987-01-08 Will E C H Gmbh & Co Verfahren und vorrichtung zum zick-zack-falten endloser materialbahnen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022210495B3 (de) 2022-10-04 2023-11-09 Heldele Automation GmbH Trennvorrichtung und Vorrichtung und Verfahren zur Herstellung von Papierblöcken

Also Published As

Publication number Publication date
JPS6445594A (en) 1989-02-20
DE3870978D1 (de) 1992-06-17
US4842572A (en) 1989-06-27
EP0288814A1 (fr) 1988-11-02

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