EP0187344B1 - Procédé et dispositif pour produire des piles individuelles composées d'une bande en accordéon - Google Patents

Procédé et dispositif pour produire des piles individuelles composées d'une bande en accordéon Download PDF

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Publication number
EP0187344B1
EP0187344B1 EP85116319A EP85116319A EP0187344B1 EP 0187344 B1 EP0187344 B1 EP 0187344B1 EP 85116319 A EP85116319 A EP 85116319A EP 85116319 A EP85116319 A EP 85116319A EP 0187344 B1 EP0187344 B1 EP 0187344B1
Authority
EP
European Patent Office
Prior art keywords
web
stack
material web
conveyor
perforation line
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
Application number
EP85116319A
Other languages
German (de)
English (en)
Other versions
EP0187344A1 (fr
Inventor
Willi Felix
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.)
JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN
Original Assignee
JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN
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 JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN filed Critical JOS HUNKELER AG FABRIK fur GRAPHISCHE MASCHINEN
Publication of EP0187344A1 publication Critical patent/EP0187344A1/fr
Application granted granted Critical
Publication of EP0187344B1 publication Critical patent/EP0187344B1/fr
Expired 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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters
    • 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
    • Y10T225/10—Methods
    • Y10T225/16—Transversely of continuously fed work
    • 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
    • Y10T225/35—Work-parting pullers [bursters]
    • 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
    • Y10T225/393—Web restrainer
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2033—Including means to form or hold pile of product pieces
    • Y10T83/2037—In stacked or packed relation
    • Y10T83/2046—Including means to move stack bodily
    • Y10T83/2048—By movement of stack holder
    • Y10T83/205—By timed relocation of holder along path of stack gscheme-change-itemth

Definitions

  • the invention relates to a method and a device for producing individual stacks consisting of a zigzag folded material web according to the preamble of claim 1 and claim 5.
  • a separating device in which two conveyor roller pairs are arranged adjacent to one another and are driven in the same direction and at the same speed for advancing the material web.
  • the rear pair of rollers As seen in the conveying direction, is now stopped, while the other pair of rollers continues to convey the material web.
  • this device Because of the double function of the one pair of rollers (advancing and clamping), this device is less for applications in which the material web is moved at high speed and often has to be separated, because of the frequent rapid acceleration of said one pair of rollers after each cutting operation suitable.
  • this one pair of rollers must also exert a certain pressure on the material web during conveying in order to be able to clamp it sufficiently strongly when it is stopped. In the case of thin material webs, this is difficult and can lead to damage to the material web.
  • the present invention is based on the object of providing a method and a device which, in addition to a safe separation of the material web along predetermined separation lines, also enables problem-free stack formation with structurally simple means even at high working speeds.
  • the last section of the part of the material web to be stacked is gripped by the holding arrangement while the material web is moved back.
  • the separation point thus does not change its position during the separation, that is to say the rear edge of the material web part to be stacked has a precisely defined position, which facilitates the subsequent controlled zigzag folding and placing on the stack.
  • the stack forming process is interrupted until the finished stack has been carried away and the stack forming device is again ready to form a new stack.
  • a part of the continuously occurring material web is preferably temporarily stored in a buffer memory which, after the material web has been separated, can be reduced to its desired height again by briefly increasing the working speed.
  • elements of the feed device for the material web can be used, which simplifies the construction.
  • the material web 2 for. B. made of paper for printers of computer systems, has perforation lines running along its edges, into which the teeth of a conveyor element 4 driven by the motor 3 engage.
  • the material web 2 has transverse perforation lines at regular intervals corresponding to the width of the stack 1 to be formed, along which the folding takes place during stack formation and on which the material web has been pre-folded in an upstream folding device 6.
  • a folding device suitable for use in the device according to the invention is described in more detail in DE-OS-33 44 260.
  • the material web 2 is drawn off from the intermediate stack 7 forming a buffer for the work process via a deflecting roller 5 and fed to a conveying roller 8 which is also driven by the drive 3.
  • the material web 2 is deflected vertically downwards by a guide by means of at least one rotating pressure roller 9, past a clamping strip 10, to an oscillating guide 12 which, by its oscillating movement, folds the material web in a known manner on the lifting table 14 in a manner known per se to form the stack 1.
  • the mentioned terminal strip 10, which is fixed, is opposite a movable terminal strip 11, which can be pressed against the fixed terminal strip 10 by a controlled linear actuator 13 in order to be able to hold the material web.
  • the oscillating guide 12 has two guide plates 15, 16 which run parallel to one another and between which the material web is guided.
  • semicircular pressing elements 18, 19 are provided in the region of the stacking and folding edges, which are fastened on a shaft 20, 21 rotating synchronously with the oscillating drive of the oscillating guide, not shown. These pressing elements 18, 19 alternately hold the folded edges 22, 23 down on the stack when the material web is folded, so that high working speeds when alternating, i.e. zigzag folds of the material web are possible.
  • the movement control of the folded shelf on the table 14 is supported at the beginning of the stack formation by one of the blowing nozzles 24, 25, depending on the direction in which the folding begins.
  • a lifting drive 25 automatically lowers the lifting table 14.
  • the separation of the stack 1 formed from the subsequent material web 2 takes place on the basis of an attached to the material web 2, for. B. printed or perforated marking, which is detected by a signal generator 27 provided on the web guide.
  • the signal then emitted by the signal generator triggers a sequence of preprogrammed operations.
  • the drive 3 for the conveying element 4 and the conveying roller 8 as well as the drive for the vibrating guide 12 and the pressing elements 18, 19 are switched off, but with a delay until the pre-folded perforation line on which the separation is to take place has passed the terminal strip 10 .
  • a thrust drive 28 then moves a conveyor roller 30 driving in the opposite direction into contact with the material web, in the contact area of the conveyor roller 8, so that the material web is moved back.
  • the intended severing point or transverse perforation line has passed through the terminal strip 10 again, this comes into effect through the pressing movement of the opposing terminal strip 11 and holds the material web 2 in place so that it breaks at the intended point 32.
  • 3 shows the moment shortly after the separation with the contact position of the conveyor roller 30 and the terminal strip 11.
  • the lifting table is designed as a conveyor table in that it has endless belts guided over rollers 34, 35.
  • One of the rollers carries a gearwheel 36 which, after the lifting table has been lowered down to the height of a stationary second conveyor belt 37, engages with a driven second gearwheel 38, so that the conveyor belt is transported and the stacks are accordingly transported away from the lifting table 14.
  • a second signal transmitter 40 arranged at the beginning of the second conveyor track signals the transfer of the stack 1 to the second conveyor belt to the drive control of the lifting table 14 in order to bring it back into its upper starting position. After this position has been reached, the conveying of the material web and the device 12, 18, 19, 24, 25 for stack formation are put into operation again until a new marking passes the signal generator 27 and the sequence described is repeated.
  • the upstream folding device 6 does not have to be switched off during the stoppage of the conveyance of the material strip 2, since a stack is also formed there.
  • This intermediate stack 7 acts as a buffer for the continuous refeeding of the material web starting from a supply roll, not shown. Since the folding device 6 forms the stack from the bottom up and is placed on a table 42, the relatively large space above the table 42 provides a large buffer volume. After the conveyor is switched on again, the intermediate stack, which has grown in the meantime, is reduced again by an initially increased working speed of the conveyor and the formation of the stack 1. It goes without saying that suitable control devices are available for this purpose, which also control the height of the intermediate stack.
  • the workflow can also be buffered by a buffer of another type, e.g. B. can be made as shown in Fig. 2.
  • This buffer 44 has two rows 45, 46 of deflecting rollers over which the material web is meandered in the form of successive loops.
  • the upper row 45 of Umlenkwelzen has fixed axes of rotation, while the deflecting rollers of the lower row 46 are mounted in a frame 48 which on vertical guides 49, 50, z. B. under its own weight, depending on the required length of the material web 2 stored in the intermediate store 44, is movable up and down.
  • the state with a large stored length of the material strip 2 is shown by chain lines 51.
  • the material web is stopped at a precisely predetermined location before the severing, so that the perforation line at which the severing is to take place comes to a standstill between the pair of strips 10, 11 and the pair of rollers 8, 9, the pair of strips can be closed immediately to hold the material web in a jammed position, and the brief return transport by means of the then pressed-on conveyor roller immediately causes the separation at this perforation line.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Details Of Cutting Devices (AREA)

Claims (13)

1. Procédé pour produire des piles (1) individuelles, composées d'une bande (2) en accordéon, à partir d'une bande (2) munie de lignes separatrices et alimentée en continu, selon lequel, avant le pliage et la dépose de la bande (2) pour former une autre pile, une pile dejà finie (1) est separée de la bande (2) la long d'une ligne de consigne (32), par une force de traction exercée sur la bande (2), maintenue sur un côté de cette ligne séparatrice (32), la pile finie (1) étant ensuite évacuée, caractérisé en ce que, pour assurer le sectionnement, la bande (2) est maintenue en un point (10, 13), situé en direction de la pile (1) par rapport à la ligne séparatrice de consigne (32), la zone de la bande, située en amont de ce point (10, 13), étant momentanément reculée dans le sens inverse au sens normal de transport (A), et en ce que l'empilage est interrompu pendant l'évacuation de la pile (1) séparée.
2. Procédé suivant la revendication 1, caractérisé en ce que la bande (2) est extraite, à partir du haut, d'une pile intermédiaire (7) formée, à partir du bas, par le pliage en accordéon de la bande (2), alimentée en continu.
3. Procédé suivant la revendication 2, caractérisé en ce que la hauteur de la pile intermédiaire (7), qui s'élève pendant la séparation et l'évacuation de la pile finie (1), est réduite par la formation temporairement accélérée de la nouvelle pile (1).
4. Procédé suivant la revendication 1, caractérisé en ce que la bande est extraite d'un stockage intermédiaire (44), dans lequel elle est renvoyée en forme de boucles, le stockage étant assuré par l'agrandissement d'une boucle de bande au moins.
5. Dispositif pour produire des piles individuelles (1), composées d'une bande en accordéon, à partir d'une bande (2) munie de lignes séparatrices et alimentée en continu, avec un dispositif d'alimentation (4, 8, 9) pour l'amenée de la bande (2) vers un dispositif d'empilage (12, 18, 19, 14), qui permet de plier en accordéon et de déposer la bande (2) pour former une pile (1), avec un dispositif d'évacuation (36 - 38), prévu pour évacuer la pile (1) finie, et avec un dispositif de sectionnement (8, 30, 10, 11), doté d'un montage de retenue (10, 11), connectable et déconnectable, pour la bande (2) et prévu pour séparer la pile finie (1) de la bande (2) le long d'une ligne de consigne (32), en maintenant la bande (2) sur un côté de la ligne (32) précitée et en exerçant une force de traction sur cette bande (2), caractérisé en ce que le dispositif de sectionnement (8, 30, 10, 11) présente un système de transport (8, 30), connectable et déconnectable, pour le déplacement de la bande (2) dans le sens inverse à son sens normal de transport (A), ce système étant monté en amont du montage de retenue (10, 11), vu dans le sens de transport (A).
6. Dispositif suivant la revendication 5, caractérisé en ce que le système de transport présente deux organes (8, 30) rotatifs, entre lesquels est prise la bande (2) et dont l'un (8) peut être entraîné dans des sens opposés, au moyen d'une commande (3).
7. Dispositif suivant la revendication 5, caractérisé par un système de commande, doté d'un émetteur de signaux (27) qui explore la bande (2), et prévu pour placer la ligne séparatrice de consigne (32) entre le système de transport (8, 30) et le montage de retenue (10, 11).
8. Dispositif suivant la revendication 5, caractérisé en ce que le dispositif de sectionnement (8, 30, 10, 11) est monté en amont du dispositif d'empilage (12, 18, 19, 14), doté d'un guidage oscillant (12).
9. Dispositif suivant la revendication 1, caractérisé en ce que le dispositif d'empilage (12, 18, 19, 14) peut être mis à l'arrêt pendant l'évacuation de la pile (1) finie.
10. Dispositif suivant la revendication 1, caractérisé en ce qu'une plateforme mobile (14), recevant la pile (1), est dotée de bandes transporteuses guidées sur des rouleaux (34, 35), ces bandes étant reliées à un entraînement (38) dans la position extrême inférieure de la plateforme (14), qui est alors adjacente à un convoyeur (37).
11. Dispositif suivant la revendication 10, caractérisé en ce qu'un émetteur de signaux (40), monté au point de transfert entre la plateforme mobile (14) et le convoyeur (37), assure le mouvement de retour de la plateforme (14) et le démarrage de l'opération d'empilage.
12. Dispositif suivant la revendication 1, caractérisé en ce qu'un dispositif (6), prévu pour le stockage intermédiaire 20 d'une partie de la bande (2), alimentée en continu, sous la forme d'une pile (7) pouvant être réduite à partir du haut, est monté en amont du dispositif d'alimentation (4, 8, 9), vu dans le sens de transport (A) de la bande (2), la pile (7) étant formée à partir du bas, par le pliage en accordéon de la bande (2).
13. Dispositif suivant la revendication 1, caractérisé en ce qu'un dispositif (44), prévu pour le stockage intermédiaire d'une partie de la bande (2) alimentée en continu, est monté en amont du dispositif d'alimentation (4, 8, 9), vu dans le sens de transport (A) de la bande (2), ce dispositif présentant plusieurs rouleaux de renvoi (45, 46) pour le guidage en forme de boucles de la bande (2), avec un écartement modifiable entre deux rouleaux (45, 46) au moins.
EP85116319A 1985-01-11 1985-12-20 Procédé et dispositif pour produire des piles individuelles composées d'une bande en accordéon Expired EP0187344B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3500766 1985-01-11
DE3500766A DE3500766C2 (de) 1985-01-11 1985-01-11 Vorrichtung zum Herstellen einzelner, aus einer zickzackförmig gefalteten Materialbahn bestehender Stapel

Publications (2)

Publication Number Publication Date
EP0187344A1 EP0187344A1 (fr) 1986-07-16
EP0187344B1 true EP0187344B1 (fr) 1987-11-04

Family

ID=6259643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116319A Expired EP0187344B1 (fr) 1985-01-11 1985-12-20 Procédé et dispositif pour produire des piles individuelles composées d'une bande en accordéon

Country Status (5)

Country Link
US (1) US4730762A (fr)
EP (1) EP0187344B1 (fr)
JP (1) JPH0641343B2 (fr)
DE (1) DE3500766C2 (fr)
ES (1) ES8706563A1 (fr)

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ES549974A0 (es) 1987-07-01
DE3500766C2 (de) 1986-11-13
JPH0641343B2 (ja) 1994-06-01
ES8706563A1 (es) 1987-07-01
US4730762A (en) 1988-03-15
EP0187344A1 (fr) 1986-07-16
DE3500766A1 (de) 1986-07-17
JPS61162461A (ja) 1986-07-23

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