EP0185146B1 - Dispositif d'empilage de produits plats en papier, ouate de cellulose ou semblables - Google Patents

Dispositif d'empilage de produits plats en papier, ouate de cellulose ou semblables Download PDF

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Publication number
EP0185146B1
EP0185146B1 EP85111287A EP85111287A EP0185146B1 EP 0185146 B1 EP0185146 B1 EP 0185146B1 EP 85111287 A EP85111287 A EP 85111287A EP 85111287 A EP85111287 A EP 85111287A EP 0185146 B1 EP0185146 B1 EP 0185146B1
Authority
EP
European Patent Office
Prior art keywords
lifting frame
cams
conveyer belt
products
expeller
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
EP85111287A
Other languages
German (de)
English (en)
Other versions
EP0185146A1 (fr
Inventor
Eberhard Döhnert
Kurt Lange
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.)
Hobema Maschinenfabrik Hermann H Raths & Co KG GmbH
Original Assignee
Hobema Maschinenfabrik Hermann H Raths & Co KG 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 Hobema Maschinenfabrik Hermann H Raths & Co KG GmbH filed Critical Hobema Maschinenfabrik Hermann H Raths & Co KG GmbH
Priority to AT85111287T priority Critical patent/ATE30138T1/de
Publication of EP0185146A1 publication Critical patent/EP0185146A1/fr
Application granted granted Critical
Publication of EP0185146B1 publication Critical patent/EP0185146B1/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/46—Members reciprocated in rectilinear path
    • 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 stacking device for flat individual products with the features from the preamble of patent claim 1.
  • DE-OS 31 40021 describes a device for forming and dispensing packets from several flat individual products made of paper, cellulose wadding or the like, which has two stacking devices, seen in the direction of feed of the products, arranged one behind the other, each of which operates alternately , wherein the supply of the products to the second stacking device takes place through the first stacking device, which is blocked during operation of the second stacking device by a blocking device in its operation, but is held continuously for the products.
  • the locking device of the known device thus serves to lock one stacking device in each case during operation of the other stacking device in two stacking devices.
  • the known locking device has a hollow, drivable control shaft which surrounds the drive shaft of the cam disk over part of its length and on which a control disk is arranged, the circumference of which has two angular ranges in which its radius is different in size.
  • a stop is arranged on the lifting frame, which is guided on the circumference of the control disk such that, depending on the position of the control disk, the lifting frame is held or released in the raised position.
  • the shape of the cam disk controlling the lifting frame must be selected so that on the one hand the lifting frame remains in the raised position for a sufficiently long time so that the new product can be completely guided under the ejection plate.
  • This section of the curve shape is at a constant distance from the axis of rotation of the cam.
  • the section of the curve shape controlling the downward movement, the reversal point and the upward movement should be as harmonious as possible in order to avoid the lifting frame striking.
  • the conveyor belt must run at a speed of 300 m / min. run, which is already a very high speed, considering that the products under the lifting frame have to be slowed down to speed 0.
  • a further increase in speed results if one takes into account the above-mentioned gaps between the individual products. If there is a gap between the products of 25% of the product length, the speed of the conveyor belt also increases by 25%. This leads to the requirement to keep the gap between the products as small as possible.
  • the length of a product plus the length of the gap corresponds exactly to one rotation of the cam disc of 360 °. From this it can easily be calculated that a section of the cam of only 72 ° falls on the length of the gap.
  • the lifting frame must perform its total movement within this section. It has been shown that this cannot be achieved in practice at the speeds indicated above and leads to the destruction of the cam disks.
  • a cam disc, which should control the movements of the lifting frame at such speeds, must not deviate too much from the circular shape.
  • the object on which the invention was based was to design a stacking device of the type mentioned at the outset in such a way that the stacking of relatively long individual products is possible at high speed without the result of an unfavorable formation of the curves high wear of the cam disc is to be expected and without the speed of the products on the conveyor belt having to be increased to such an extent that damage to the products can be expected when braking.
  • the movement of the lifting frame is controlled by several synchronously running cams to avoid any tilting of the lifting frame and on the other hand measures are taken to achieve a harmonious curve shape on the cams so that none Hitting the lifting frame can occur.
  • the stacking device is designed according to the features of claim 2, wherein, as is shown in an exemplary embodiment below, another Sufficiently long curve section on the cams is available to form the curve shape controlling the movement of the lifting frame.
  • the stacking device With the stacking device according to the invention, it is possible, despite the high production speed, to keep the gaps between the introduced products of greater length relatively small, since the locking of the lifting frame in the upper position not only comprises a small part of the circumference of the cams, but over at least a full one The cam disc stops rotating.
  • the 1 shows a stacking device to which individual products, for example paper towels, coming from a cross cutter, not shown, are fed.
  • the products A are brought in by a conveyor belt system consisting of several individual belts 1 and 2.
  • This conveyor belt system is constructed in a manner not shown and known per se from a plurality of parallel belt groups, the products A being located in the area of the stacking device between two upper edge zone belts 2 and two lower edge zone belts 1, from which they are detected in narrow edge zones.
  • the products A are arranged on the conveyor belt system 1, 2 at intervals and move in the direction Z.
  • the stacking device has a support 3, not shown, which is arranged below the conveyor belt system 1, 2 and which can be lowered in the direction S and can also be designed in a known manner, for example as a collecting cassette.
  • an ejection device which has a lifting frame 4 which is guided in rod guides 6 so as to be vertically movable and on the underside of which an ejection plate 5 is arranged.
  • cam discs 10 and 11 are arranged in the vicinity of the front and rear ends of the lifting frame, which are connected to a drive device (not shown) and are driven synchronously.
  • the lifting frame 4 is supported by support rollers 12, 13 on the cams 10, 11. It is raised by the cams 10, 11 against the force of compression springs 8, 9 and as long as it is freely movable vertically under the action of these compression springs the curve shape of these cams and in this way induced to continuous lifting and lowering movements.
  • a locking device is used for more precise control of the movement of the lifting frame 4.
  • This locking device has two control disks 16 and 17 arranged opposite the front and rear ends of the lifting frame 4, the design of which is shown in more detail in FIG. 2.
  • the control disks 16 and 17 have two angular ranges of different sizes on their circumference, in which they each have a different radius.
  • a stop 14 or 15 is arranged, at the outer end of which there is a support roller 14a or 15a.
  • the stops 14 and 15 are arranged parallel to the axes of the control disks 16 and 17 and dimensioned such that the support rollers 14a and 15a in the circumferential area rich of the control disks 16 and 17 lie and the two different radii of the control disks are dimensioned such that when the lifting frame 4 is raised, the peripheral region of the control disks 16 and 17 with a larger radius can slide straight under the support rollers 14a and 15a, but the lifting frame 4, as long as the circumferential section with a larger radius is located under the support rollers 14a and 15a, with a corresponding position of the cam disks 10 and 11, despite the action of the compression springs 8 and 9, it cannot carry out a lowering movement.
  • the lifting frame 4 can carry out its lifting and lowering movements unhindered.
  • the lowering movements of the lifting frame 4 are thus blocked in certain positions of the control disks 16 and 17.
  • the cams 10 and 11 then continue to run without affecting the lifting frame 4.
  • the drive shafts of the control disks 16 and 17 oriented parallel to the direction of movement Z of the conveyor belt system 1, 2 carry drive wheels 18 and 19, which are connected via belts 20 and 21 to smaller driven wheels 22 and 23, which are on a common shaft 24, which is also parallel to the direction Z are arranged.
  • the shaft 24 is driven by a drive wheel 25 which is connected to the drive of the stacking device via a further belt 26 in a manner not shown.
  • the drive wheels 18, 19 form a reduction gear with the driven wheels 22, 23, by means of which the speed of the two cams 10 and 11 is transmitted at a ratio of 3: 1 to the control disks 16 and 17.
  • the number of strokes of the lifting frame 4 is 300 / min. off, the cam disks 10 and 11 run at a speed of 900 / min., while the speed of the control disks 16 and 17 300 / min. is.
  • the angle range a in which the lifting frame 4 is released, corresponds exactly to one revolution of the cams 10 and 11, so that with the selected transmission ratio the lifting frame is released for one revolution of the cams 10 and 11, while it is released for the next two Revolutions of the cams 10 and 11 is locked by the locking device.
  • the two control disks 16 and 17 are therefore not used to actuate the support rollers 14a and 15a, but only control the time in which the lifting frame 4 is released or locked.
  • the ejection plate 5 does not necessarily have to be attached to a continuous lifting frame 4. It is also possible to provide two lifting frames arranged one behind the other and connected to the same ejection plate 5, one of the cams 10 and 11 then being arranged within each of these two lifting frames.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Telephone Function (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Claims (5)

1. Dispositif d'empilage pour produits individuels plats en papier, ouate de cellulose ou analogues, comportant un tapis transporteur (1, 2) sur lequel les produits (A) sont amenés, un à un, en position couchée et en direction d'un dispositif d'éjection (4, 5), disposé au-dessus du tapis transporteur, agissant verticalement, et poussant les produits le long du tapis transporteur sur un plan sous-jacent (3) pouvant être abaissé, ledit tapis transporteur étant constitué, au moins dans la zone du dispositif d'éjection, de bandes individuelles (1,2) se déplaçant parallèlement, qui sont disposées de telle sorte que les produits (A) se trouvent saisis dans des zones marginales étroites et que le dispositif d'éjection présente un cadre de levage (4) et conduit dans des guidages à tige (6), une plaque d'éjection (5) au moins étant disposée à l'extrémité inférieure dudit cadre (4), lequel peut être soulevé, au moyen d'une came (10,11) disposée sur un arbre d'entraînement, contre la force exercée par un ressort de compression, le dispositif d'éjection comportant en outre un dispositif de verrouillage muni d'un disque de commande (16, 17) dont le pourtour présente deux zones angulai- resdans lesquelles son rayon est de grandeur différente et une butée (14, 15) étant disposée sur le cadre de levage (4) et conduite sur le pourtour du disque de commande de telle sorte que, selon la position dudit disque de commande, le cadre de levage se trouve soit fixé en position soulevée, soit dégagé, caractérisé par le fait qu'à la plaque d'éjection (5) sont associées au moins deux cames (10, 11 ) entraînées en synchronisme, disposées consécutivement dans le sens longitudinal du tapis transporteur (1, 2), soulevant le cadre de levage (4), cames dont la vitesse de rotation correspond à un multiple entier n > 1 de la vitesse de levage requise du cadre (4) et par le fait que le dispositif de verrouillage (16, 17) est commandé de telle sorte que le cadre (4) est maintenu fixé en position soulevée au moins pendant la durée des premières rotations n - 1 des cames (10, 11 ) et qu'il est ensuite libéré pendant un temps prédéterminé.
2. Dispositif d'empilage selon la revendication 1, caractérisé par le fait que le dispositif de verrouillage (16,17) est commandé de telle sorte que le cadre de levage (4) se trouve maintenu en position soulevée pendant la durée des premières rotations n - 1, ainsi que pendant une fraction prédéterminée de la rotation suivante des cames.
3. Dispositif d'empilage selon la revendication 2, caractérisé par le fait que la vitesse de rotation des cames (10, 11 ) correspond au triple de la vitesse de soulèvement du cadre (4) et que le dispositif de verrouillage (16,17) est commandé de telle sorte que le cadre (4) se trouve fixé en position soulevée pendant la durée d'un mouvement de rotation des cames (10,11 ) de 720°+ (120° à 180°).
4. Dispositif d'empilage selon l'une des revendications 1 à 3, caractérisé par lefaitque le dispositif de verrouillage présente un autre disque de commande et que les deux disques de commande réalisés sous forme de cames (16, 17) entraînées en continu, sont disposés à l'extrémité avant et à l'extrémité arrière du cadre (4), vues respectivement dans le sens de déplacement du tapis transporteur (1, 2), à chacun des disques de commande étant associée une butée (14, 15) disposée respectivement à l'extrémité avant et à l'extrémité arrière du cadre (4) et les disques de commande (16, 17) étant reliés à l'entraînement des cames (10, 11) par un engrenage démultiplicateur (18 à 23).
5. Dispositif d'empilage selon la revendication 4, caractérisé par le fait que les axes des disques de commande (16,17) sont orientés parallèlement à la direction longitudinale du tapis transporteur (1, 2) et sont reliés respectivement par un engrenage à courroie (20,22 ou 19,21,23) au dispositif d'entraînement des cames (10, 11 ), l'arbre d'entraînement commun (24) des deux engrenages à courroie s'étendant parallèlement à la direction longitudinale du tapis transporteur (1,2).
EP85111287A 1984-12-18 1985-09-06 Dispositif d'empilage de produits plats en papier, ouate de cellulose ou semblables Expired EP0185146B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111287T ATE30138T1 (de) 1984-12-18 1985-09-06 Stapelvorrichtung fuer flaechige einzelerzeugnisse aus papier, zellstoffwatte o. dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3446032 1984-12-18
DE19843446032 DE3446032A1 (de) 1984-12-18 1984-12-18 Stapelvorrichtung fuer flaechige einzelerzeugnisse aus papier, zellstoffwatte o.dgl.

Publications (2)

Publication Number Publication Date
EP0185146A1 EP0185146A1 (fr) 1986-06-25
EP0185146B1 true EP0185146B1 (fr) 1987-10-07

Family

ID=6253016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111287A Expired EP0185146B1 (fr) 1984-12-18 1985-09-06 Dispositif d'empilage de produits plats en papier, ouate de cellulose ou semblables

Country Status (3)

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EP (1) EP0185146B1 (fr)
AT (1) ATE30138T1 (fr)
DE (2) DE3446032A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1265845B1 (it) * 1993-02-15 1996-12-12 Perini Fabio Spa Dispositivo per il trasferimento di tovagliolini o prodotti analoghi dalla macchina di produzione a mezzi impilatori.
US5601783A (en) * 1993-05-04 1997-02-11 Pasteur Sanofi Diagnostics Vessel transport device for automatic chemical analysis
CN107053315A (zh) * 2017-06-27 2017-08-18 湖南省客来宝生物能源科技有限公司 一种桌台可升降的生物降解薄膜切割设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140021A1 (de) * 1981-10-08 1983-04-28 Hobema Maschinenfabrik Hermann H. Raths GmbH & Co KG, 4000 Düsseldorf Einrichtung zur bildung und angabe von paeckchen aus mehreren, flaechigen einzelerzeugnissen aus papier, zellstoffwatte od. dgl.
DE3220130A1 (de) * 1982-05-28 1983-12-01 Hobema Maschinenfabrik Hermann H. Raths GmbH & Co KG, 4000 Düsseldorf Einrichtung zur bildung un abgabe von paeckchen aus mehreren, flaechigen einzelerzeugnissen aus papier, zellstoffwatte o.dgl.
DE3239097A1 (de) * 1982-10-22 1984-05-10 Hobema Maschinenfabrik Hermann H. Raths GmbH & Co KG, 4000 Düsseldorf Einrichtung zur bildung und abgabe von abgezaehlten paeckchen aus mehreren, flaechigen einzelerzeugnissen aus papier, zellstoffwatte o. dgl.

Also Published As

Publication number Publication date
DE3446032A1 (de) 1986-06-19
EP0185146A1 (fr) 1986-06-25
ATE30138T1 (de) 1987-10-15
DE3560742D1 (en) 1987-11-12

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