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EP0686593B1 - Méthode et appareil pour empiler - Google Patents

Méthode et appareil pour empiler Download PDF

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Publication number
EP0686593B1
EP0686593B1 EP95107899A EP95107899A EP0686593B1 EP 0686593 B1 EP0686593 B1 EP 0686593B1 EP 95107899 A EP95107899 A EP 95107899A EP 95107899 A EP95107899 A EP 95107899A EP 0686593 B1 EP0686593 B1 EP 0686593B1
Authority
EP
European Patent Office
Prior art keywords
stack
support
separating
carrier
portions
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
EP95107899A
Other languages
German (de)
English (en)
Other versions
EP0686593A3 (fr
EP0686593A2 (fr
Inventor
Gilbert Dipl.-Ing. Hauschild
Rolf Majewski
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.)
Winkler and Duennebier GmbH
Original Assignee
Winkler and Duennebier GmbH
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 Winkler and Duennebier GmbH filed Critical Winkler and Duennebier GmbH
Publication of EP0686593A2 publication Critical patent/EP0686593A2/fr
Publication of EP0686593A3 publication Critical patent/EP0686593A3/fr
Application granted granted Critical
Publication of EP0686593B1 publication Critical patent/EP0686593B1/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
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/24—Interfolding sheets, e.g. cigarette or toilet papers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed pile
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1924—Napkins or tissues, e.g. dressings, toweling, serviettes, kitchen paper and compresses

Definitions

  • the invention relates to a method for stacking folded cloths in a zigzag interlocking arrangement, where the cloths are alternately folded Orientation with partially opened folds and yourself fed overlapping underlapping folding sections and under Closure of the partially opened folds filed into a stack be, the stack at its bottom by a support device supported and according to its growth the support device is lowered when a provided one is reached Height of the stack is a separating and auxiliary carrying device for picking up a new stack above the finished stack laterally in the direction transverse to the longitudinal extent of the folded edges is inserted, the finished stack is handed over and transported away is and the empty support device up to the separation and Auxiliary carrier raised and the new stack on the empty support device while pulling back the separating and Auxiliary carrying device is handed over.
  • the support fingers and the separating fingers are dimensioned and operated so that they essentially over the entire stack width to close to one Folding edge of the cloth can be retracted.
  • the support device forming one-piece stacking table is dimensioned so that it is extends over the entire stack width and also over protrudes the stack outward.
  • the stack For transferring the stack from the stacking table to another Carrier is a movable across the stroke direction of the stack Sliding piece provided.
  • the stack is also deposited in a shaft that supports the stack laterally when the Parting fingers and the carrying fingers when delivering the new one, already partially formed stack on the raised again Stacking table can be pulled out to the side.
  • EP-A-0 586 802 discloses a device for forming stacks known from folded printed products (newspapers), the a stacking shaft, a lowerable stacking table and over this one shaft floor and again at a distance above this has an intermediate floor as an auxiliary carrying device.
  • the floor is made up of two floor halves arranged at the same height formed by opposing in a manner coordinated with the stack height Shaft sides retracted into the shaft be, with a small distance between the facing each other inner edges of the bottom halves remain, and again be pulled out of the shaft to form a partial stack of Printed products on the shaft floor or on the stacking table pass on.
  • This device serves the stacks of folded products, however, is for products that in a zigzag interlocking arrangement with itself overlapping folding sections are fed, neither intended nor suitable.
  • the invention has for its object the above To design procedures so that even at high speed let such towels be put down exactly because of their unstable shape are difficult to handle.
  • This object is achieved in that the of the stack taken over the support device on its underside to form two opposing support areas by means of two support parts from the opposite folded edges forth with the release of one parallel to the folded edges extending intermediate area between the support areas is supported and that the new stack on its underside to form two opposing support areas by means of two separating and auxiliary support parts from the opposite folded edges forth with the release of one itself parallel to the fold edges extending central area between the support areas is supported.
  • the invention also relates to a device for stacking of folded cloths in an interlocking zigzag shape Arrangement, with the towels in terms of their folding placed alternately in a stack, to carry out the method according to one of claims 1 to 4 with a feeding device for the cloths, a folding device from two folding cylinders each assigned to them Scraper fingers, a lowerable serving as a stacking pad Support device, and a separating and auxiliary carrying device, the above the support device in the direction transverse to Longitudinal extension of the folded edges laterally in the stacking area retractable and extendable from it.
  • a device is also known from US-A-4,770,402.
  • this device is characterized in that that the support device of two jointly lowerable support parts is formed which underneath the stack at its bottom Formation of two opposing support areas of the opposite folded edges with the release of one extending intermediate area parallel to the fold edges reach between the support areas, and that the separating and Auxiliary carrying device of two separately separable and Auxiliary support parts is formed by two opposite Pages can be moved and lowered partially over the stack and the new stack are also under formation two opposing support areas from the opposite Folded edges forth with the release of one parallel to the fold area extending middle area between reach under the support areas.
  • the free space between the retracted Support parts or separating and auxiliary support parts in expediently the passage of the free edge part of the bottom Cloth in the stack, what the later individual removal of the relieved bottom cloth in the stack.
  • the stack support parts not bearing all over on its underside also the handover of the stack to a person who is to be transported Conveyor element. Even after handing over the stack to a shelf or the individual remain on a conveyor belt or the like Cloths properly aligned in the stack.
  • a device 1 for stacking folded, zigzag in a stack of 2 towels 3 comprises two sets of rollers as shown in FIG. 1 4 and 5 for the individually or web-arriving towels 3 and two folding cylinders 6, 7, of which the blankets 3 with their fold alternately on the right and left on one lowerable support device serving as a stacking table 8 be filed.
  • This is also done using Separation and auxiliary support devices 9, 10, each Separation and carrying forks 11, 12 and their function basically just like the function of with the folding cylinders 6, 7 interacting wiper fingers 13 and 14 are known in the fold formation and stacking.
  • the support device serving as a stacking table 8 consists of two stack carrying devices arranged opposite one another 15, 16 (Fig. 1). Basically, the two are Separation and auxiliary support devices 9, 10 and the two Stack carrying devices 15, 16 are mirror images in principle arranged to a central plane 17 and are thus from two opposite sides 18, 19 (Fig. 4, 5) ago effective in stacking and stacking.
  • the cloths 3 off-center during stack formation and when stacking and in sufficient width, especially in the range of opposite edges 20, 21 (Fig. 5) worn. This applies to both the finished stack 2 as well as for a stack that is still in the making 2 '(Figs. 6 and 7).
  • a stack 2 is cut off during continuous stacking and from the next one, forming stack 2 'from the two sides 18, 19 ago.
  • the stack carrying devices 15 and 16 have to carry of the nascent stack 2 '(Fig. 4) and the completed stack 2 (Fig. 5) immediately supportive Carrying forks 22 and 23 arranged on supports 24, 25 are and together in the stroke direction of the stack 2 and are movable transversely to it, as is also the case with the double arrows a or b is indicated in Fig. 8.
  • the stack and Carriers 15, 16 are therefore able to Stack 2 on a conveyor belt running directly below it 26 to deliver what their forks 22 and 23 from 7 in each case away from each other in Direction of the double arrow b in Fig. 8 are moved.
  • the carrying forks 22, 23 are under the stack 2 in opposite directions or in the direction of Pages 18 and 19 pulled out and the stack 2 sinks on the conveyor belt 26. At the same time bottom cloth 3 pulled tight (Fig. 7).
  • the stack 2 from the opposite pages 18 and 19 directly reach under and carry and lower, also spill over to the two separating and auxiliary carrying devices 9 and 10 belonging separation and carrying forks 11, 12 the stack 2 of the two opposite one another Pages 18 and 19 ago when used as dividers when the required stack height is reached between two deposited Cloths 3 can be pushed.
  • the dividing and carrying forks 11 and 12 are then on the completed stack 2 also only partially and overlap each only from the edges 20, 21, as shown in the figures 1, 5 and 6 is shown. Also wear and support the separating and carrying forks 11, 12 in the making conceived stack 2 'each just as eccentrically as this is the case with the carrying forks 22 and 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Pile Receivers (AREA)

Claims (13)

  1. Procédé pour empiler des tissus pliés (3) selon un agencement en prise en forme de zigzag où
    les tissus (3) sont amenés quant à leur pliage selon une orientation alternative avec des plis ouverts partiellement et des tronçons de pliage en prise arrière par chevauchement et, en fermant les plis ouverts partiellement, sont déposés pour former une pile (2),
    la pile (2) est supportée à son côté inférieur par un dispositif d'appui (8) et est abaissée conformément à sa croissance avec le dispositif d'appui (8),
    lors de l'atteinte d'une hauteur prévue de la pile (2), un dispositif de séparation et de support auxiliaire (9/10), pour la réception d'une nouvelle pile (2'), est inséré latéralement, au-dessus de la pile finie (2) dans la direction transversalement à l'extension longitudinale des arêtes de pliage,
    la pile finie (2) est transférée et est transportée et
    le dispositif d'appui vide (8) est relevé jusque sous le dispositif de séparation et de support auxiliaire (9, 10), et la nouvelle pile (2') est transférée au dispositif d'appui vide (8) en retirant le dispositif de séparation et de support auxiliaire (9/10),
    caractérisé en ce que la pile (2) reprise par le dispositif d'appui (8) est supportée à son côté inférieur, en formant deux zones d'appui opposées l'une à l'autre, au moyen de deux parties d'appui (15, 16) depuis les arêtes de pliage opposées, en laissant libre une zone intermédiaire s'étendant parallèlement aux arêtes de pliage entre les zones d'appui et
    que de même la nouvelle pile (2') est supportée à son côté inférieur, en formant deux zones d'appui opposées l'une à l'autre, au moyen de deux parties de séparation et de support auxiliaire (11, 12) depuis les arêtes de pliage opposées, en laissant libre une zone médiane s'étendant parallèlement aux arêtes de pliage entre les zones d'appui.
  2. Procédé selon la revendication 1, caractérisé en ce que les tissus (3) sont amenés et que les parties de séparation et de support auxiliaire (11, 12) sont insérées de façon que la partie de bord libre (3') du tissu le plus inférieur (3) de la nouvelle pile (2') passe entre les deux parties de séparation et de support auxiliaire (11, 12) vers le bas et sort ensuite en position pendant vers le bas lors du relèvement des deux parties d'appui (15, 16) également entre celles-ci, et que la partie de bord libre (3') pendant entre les deux parties d'appui (15, 16) en formant une arête de pliage additionnelle (3''), est rabattue vers le côté.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que la pile (2) est soutenue de telle sorte que la partie de bord libre (3') du tissu le plus inférieur (3) pend au-delà du plan médian vertical (17) de la pile (2).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la partie de bord pendante libre (3') du tissu le plus inférieur (3) de la pile (2), avant le transfert de celle-ci, en la plaçant sur un moyen de transport (26), est soumise au soufflage par un flux d'air et est rabattue horizontalement.
  5. Dispositif pour empiler des tissus pliés (3) selon un agencement en prise en forme de zigzag, où les tissus (3), quant à leur pliage, sont déposés selon une orientation alternative en une pile (2), pour la mise en oeuvre du procédé selon l'une des revendications 1 à 4 comportant
    un dispositif d'amenée (4, 5) pour les tissus (3),
    un dispositif de pliage (6/7) constitué de deux cylindres de pliage (6, 7) avec des doigts de râclage (13, 14) associés respectivement à ceux-ci,
    un dispositif d'appui (8) apte à être abaissé, servant de support de pile et
    un dispositif de séparation et de support auxiliaire (9/10) qui peut être entré au-dessus du dispositif d'appui (8) dans la direction transversalement à l'extension longitudinale des arêtes de pliage latéralement dans la zone de pile et peut être sorti de celle-ci,
    caractérisé
    en ce que le dispositif d'appui (8) est formé par deux parties d'appui (15, 16) pouvant être abaissées ensemble qui passent sous la pile (2) à son côté inférieur, en formant deux zones d'appui opposées l'une à l'autre depuis les arêtes de pliage opposées, en laissant libre une zone intermédiaire s'étendant parallèlement aux arêtes de pliage entre les zones d'appui et
    en ce que le dispositif de séparation et de support auxiliaire (9/10) est constitué par deux parties de séparation et de support auxiliaire (11, 12) pouvant être entraínées séparément qui peuvent être déplacées depuis deux côtés opposés (18, 19) partiellement sur la pile (2) et être abaissées sur celle-ci et qui passent sous la nouvelle pile (2') également en formant deux zones d'appui opposées l'une à l'autre depuis les arêtes de pliage opposées, en laissant libre une zone médiane s'étendant parallèlement aux arêtes de pliage entre les zones d'appui.
  6. Dispositif selon la revendication 5, caractérisé en ce qu'il est prévu un dispositif de rabattement (23'') pour rabattre la partie de bord (3') du tissu le plus inférieur (3) de la pile (2) pendant à travers la zone intermédiaire entre les deux parties d'appui (15, 16).
  7. Dispositif selon la revendication 6, caractérisé en ce que la partie d'appui (15) qui reçoit l'arête de pliage du tissu le plus inférieur (3) avoisinant la partie de bord libre (3') du tissu le plus inférieur (3) s'étend plus loin sous la pile (2) vers une arête de pliage opposée que l'autre partie d'appui (16).
  8. Dispositif selon l'une des revendications 5 à 7, caractérisé en ce que chaque partie de séparation et de support auxiliaire (11, 12) présente une fourche de séparation et de support pour les tissus amenés (3) qui est logée d'une manière déplaçable en biais à la direction de levage des parties d'appui (15, 16) ainsi que d'une manière pivotante.
  9. Dispositif selon la revendication 8, caractérisé en ce que chaque fourche de séparation et de support est disposée à au moins un support (27, 28) d'une manière déplaçable ainsi que pivotante, qui est déplaçable le long d'un guidage (29, 30) dans la direction de levage des parties d'appui (15, 16) qui sont déplaçables pour la transmission de la pile (2) transversalement à la pile (2).
  10. Dispositif selon l'une des revendications 5 à 9, caractérisé en ce que chaque partie d'appui (15, 16) présente une fourche de support (22, 23) pour les tissus (3) et un support supplémentaire (31, 32) qui est déplaçable le long d'un guidage (29, 30) dans la direction de levage des parties d'appui (15, 16), et en ce que les fourches de support (22, 23) sont déplaçables au support supplémentaire (31, 32) transversalement à la direction de levage.
  11. Dispositif selon l'une des revendications 9 ou 10, caractérisé en ce que les supports (27, 28) et les supports supplémentaires (31, 32) présentent des rouleaux (40, 48) destinés à leur guidage ainsi que des dispositifs d'entraínement (43, 51) pour les fourches de séparation et de support (11, 12) et pour les fourches de support (22, 23).
  12. Dispositif selon l'une des revendications 5 à 11, caractérisé en ce que le dispositif de rabattement (23'') présente des buses de soufflage.
  13. Dispositif selon la revendication 12, caractérisé en ce que les buses de soufflage (23'') sont disposées au côté inférieur de la partie d'appui (16) qui est opposée à la partie d'appui (15) s'appliquant au tissu le plus inférieur de la pile (2).
EP95107899A 1994-06-08 1995-05-24 Méthode et appareil pour empiler Expired - Lifetime EP0686593B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419989A DE4419989C2 (de) 1994-06-08 1994-06-08 Verfahren und Vorrichtung zum Stapeln von gefalteten Tüchern
DE4419989 1994-06-08

Publications (3)

Publication Number Publication Date
EP0686593A2 EP0686593A2 (fr) 1995-12-13
EP0686593A3 EP0686593A3 (fr) 1997-01-29
EP0686593B1 true EP0686593B1 (fr) 2000-08-16

Family

ID=6520072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107899A Expired - Lifetime EP0686593B1 (fr) 1994-06-08 1995-05-24 Méthode et appareil pour empiler

Country Status (4)

Country Link
US (1) US5730695A (fr)
EP (1) EP0686593B1 (fr)
JP (1) JP3466000B2 (fr)
DE (2) DE4419989C2 (fr)

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Also Published As

Publication number Publication date
EP0686593A3 (fr) 1997-01-29
DE4419989A1 (de) 1995-12-14
US5730695A (en) 1998-03-24
EP0686593A2 (fr) 1995-12-13
JPH08175748A (ja) 1996-07-09
DE4419989C2 (de) 1997-10-02
JP3466000B2 (ja) 2003-11-10
DE59508637D1 (de) 2000-09-21

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