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EP0429135B1 - Dispositif pour couper des morceaux de matériau en feuille de façon continue à partir d'une bande et pour transporter ces morceaux vers une machine de traitement - Google Patents

Dispositif pour couper des morceaux de matériau en feuille de façon continue à partir d'une bande et pour transporter ces morceaux vers une machine de traitement Download PDF

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Publication number
EP0429135B1
EP0429135B1 EP19900203039 EP90203039A EP0429135B1 EP 0429135 B1 EP0429135 B1 EP 0429135B1 EP 19900203039 EP19900203039 EP 19900203039 EP 90203039 A EP90203039 A EP 90203039A EP 0429135 B1 EP0429135 B1 EP 0429135B1
Authority
EP
European Patent Office
Prior art keywords
roller
material web
drive
roll
working
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
EP19900203039
Other languages
German (de)
English (en)
Other versions
EP0429135A1 (fr
Inventor
Johannes Dominicus Van Maanen
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.)
Syntegon Packaging Technology BV
Original Assignee
Kloeckner Haensel Tevopharm BV
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 Kloeckner Haensel Tevopharm BV filed Critical Kloeckner Haensel Tevopharm BV
Publication of EP0429135A1 publication Critical patent/EP0429135A1/fr
Application granted granted Critical
Publication of EP0429135B1 publication Critical patent/EP0429135B1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/31—Features of transport path
    • B65H2301/312—Features of transport path for transport path involving at least two planes of transport forming an angle between each other
    • B65H2301/3124—Y-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/942—Bidirectional powered handling device

Definitions

  • the invention relates to a device for continuously cutting pieces of sheet material from a material web and feeding said pieces to a processing machine, in particular a packaging machine, comprising means for rotatably supporting rolls of sheet material, a working roll and a waiting roll, guide means for guiding a working material web unrolled from the working roll and a waiting material web unrolled from the waiting roll to a first and a second guide channel, respectively, said channels being provided with positioning means for the free end of the waiting material web, said channels converging towards a common outlet, upstream of the inlets of said channels there being provided drive rollers situated at a distance from each other and a pressure roller positioned between said rollers, said pressure roller being movable to and fro between a position in which it presses one material web against one drive roller and a position in which it presses the other material web against the other drive roller, so that when the device is in operation one of the drive rollers is an operative roller and the other drive roller is a non-operative roller, a cutting device provided downstream of the outlet of the
  • Such a device is known from German Patent Application 2435441.
  • a device of this type When a device of this type is in operation a material web is unrolled continuously from the working roll and fed past the cutting device, where pieces of equal lengths are cut from said web.
  • the working roll When the working roll is completely or almost completely unrolled, there is an automatic switch to the waiting roll, which then becomes the working roll, following which the spent roll can be replaced by a new roll, which then becomes the waiting roll.
  • the two drive rollers are driven continuously in one rotary direction, so that during the switch to the waiting material roll, when the pressure roll is moved from the position lying against the first working drive roller to the position lying against the second, not yet working drive roller, the material web still present in the one guide channel belonging to the first drive roller remains therein and in the common outlet, so that the cutting device has to be disposed close to the common outlet of the guide channels since otherwise also a portion of the material web projecting from the outlet would remain between the outlet and the cutting device, as a result of which the subsequent feed of material from the waiting material roll would be obstructed.
  • thin card board supporting trays enclosing the product on three sides in the lengthwise direction have to be packed with them in order to protect the products, so that in order to obtain continuously such trays, the pieces of sheet material have to be provided with perforation lines before these pieces are cut off. After that the supporting trays can be formed by bending the pieces along the perforation lines.
  • the object of the invention is to provide a device of the above-mentioned type by which also perforation lines can be provided.
  • the drive of the drive rollers is reversible and the above-mentioned indicator means, on an indication that the working roll is fully or virtually fully unrolled, can give a first signal as a result of which the direction of rotation of at least the working drive roller is reversed relative to the normal direction, so that the working material web lying between the drive roller and the pressure roller is withdrawn, and second indicator means are fitted, for example a photoelectric cell, which can give a second signal when the end of the withdrawn material web runs past it, as a result of which the drive of at least the other non-working drive roller is put into the normal direction of rotation and the pressure roller is moved into the position in which said roller presses the waiting material web against the last-mentioned drive roller whereas situated between the cutting device and the outlet of the guide channels is a perforating device which contains a roller driven in synchronism with the rotary cutting element and provided with perforation cutters and a counter roller which is also driven and interacts
  • the working material web is thus first withdrawn, so that at least the common outlet of the guide channels is cleared, and thereafter the waiting material web is moved forward, so that the cutting device can be disposed at a relative great distance from the common outlet of the guide channels and a perforating device can be positioned between said outlet and the cutting device.
  • the above-mentioned second signal preferably works in conjunction with a signal from the drive of the cutting device in such a way that the pressure roller is moved at such a moment from one to the other drive roller - causing the waiting material web to be moved forward-that the front end of said web reaches the cutting device just after the rotary cutting element has passed the anvil.
  • the positioning means in the guide channels are preferably formed by stop elements which are movable to and fro between an extended and a retracted position, in such a way that in the extended position the relevant channel is essentially blocked, while the positions of these elements can be altered in response to the above-mentioned second signal.
  • GB-A-2096580 discloses a device for cutting pieces of sheet material continuously from a pre-printed material web exactly between two adjacent prints by means of a cutting device.
  • a printing defect is spotted or when the roll of material is exhausted the material web and the cutting device are stopped after completion of the cutting cycle of the last piece of sheet material, after which the material web is withdrawn and a waiting material web unrolled from a waiting roll of material is fed to the cutting device so that the leading end of said web is in correspondence with the cutting line of the cutter.
  • the device comprises two pairs of cooperating drive rollers for feeding and withdrawing the material webs which rollers are situated downstream before the inlets of two converging guide channels, the cutting device being situated behind the common outlet and these channels.
  • the cutting device has to stand still too during this cycle by which the production rate is strongly decreased so that this device is only suitable when the portion of the material web which has to be withdrawn is relative short.
  • the device comprises means for rotatably supporting two rolls of sheet material 1 and 2, roll 1 being the working and roll 2 being the waiting material roll.
  • a material web 3 is unrolled from the roll 1, said material web being pulled downwards to a loop between the rolls 5 and 6 by the compensation roll 4 fixed at the free end of the swivellably mounted arm 4', either solely through the weight of the roll 4 or through the arm 4' being under spring tension.
  • the reel shaft of the roll 1 is braked; when the arm 4' swings upwards, then this reel shaft is released and the material web 3 can be unwound, while the above-mentioned weight or above-mentioned spring tension determines the tension in the material web 3.
  • a return guard 7 is provided in order to prevent the material web 3 from running back.
  • a material web 8 is unwound from the material roll 2 by means of the compensation roll 9 fixed on the swivellably mounted arm 9', the fixed rolls 10 and 11 and the return guard 12.
  • Reference numbers 28 and 29 indicate means, such as induction sensors, switches or photoelectric cells which can give a signal when the rolls 1 or 2 are almost completely unwound.
  • the material web 3 is further guided through a guide channel 13 and the material web 8 through a guide channel 14, these channels 13 and 14 having a common outlet 15.
  • provision is made upstream of the channels 13 and 14 for two drive rollers 16, 17 which can be driven in rotation, both in the one direction of rotation B, C respectively and in the other direction of rotation B', C' respectively.
  • Situated between these drive rollers 16 and 17 is a pressure roller 18 which is mounted for a swinging movement as indicated by the double arrow D, so that this roller 18 can move to and fro between a position in which the roller presses the material web 3 against the drive roller 16 and a position in which the pressure roller presses the material web 8 against the drive roller 17.
  • the guide channel 13 has belonging to it a positioning element in the form of a stop 19 which can move to and fro in the direction of the double arrow D, and which in the position shown in Figure 1 is retracted so that the channel 13 is cleared, but which in the extended position blocks said channel 13.
  • the guide channel 14 has another stop 20 which can be moved in the direction of the double arrow E from the illustrated position blocking the channel 14 to a position clearing said channel. In the illustrated position blocking the channel 14 the front end 8' of the material web 8 lies against this stop 20, while the front part of the web 8 is prevented from sagging, and thereby coming free from the stop 20, by means of the bottom support 32.
  • the support 33 is provided for supporting the material web 3 when it is the waiting web.
  • a perforation device is fitted downstream of the common outlet 15 said device comprising a roller 21 which can be driven so that it continuously rotates, and which is provided with a number of perforation cutters 22, and a counter roller 23 which can be driven so that it rotates and is mounted in such a way that it can move up and down in the direction of the double arrow F, so that in the highest position this roller 23 is not in engagement with the perforation cutters 22.
  • a cutting device comprising a cutter 24 which can be driven by means not shown so that it continuously rotates and a fixed anvil 25 interacting therewith.
  • the drive rollers 16 and 17 are driven, possibly through an intermediate variator, by the drive means of the cutting device, while by means of a reversing clutch the direction of rotation of the driver rollers can be changed at command.
  • the perforating device is driven in synchronism with the cutting device so that in the embodiment shown in figure 1 the perforation cutters 22 make half a revolution and the cutting knife 24 one revolution per cut off piece of material.
  • a photoelectric cell device is indicated by reference number 26.
  • the material web 3 is pushed by means of the drive roller 16 and the pressure roller 18 lying against it through the guide channel 13, the common outlet 15 and through the perforating device 21, 23, to the cutting device 24, 25.
  • the perforation lines 27 shown in Figure 2 are formed in the material web 3 by the perforating device 21, 23 and, finally, pieces 3' of the material web 3 are cut off between every two of these perforation lines 27 by the cutting device 24, 25.
  • These cut-off pieces 3' are conveyed between the two conveyor belts 30 and 31 to e.g. a packing machine.
  • the counter roller 23 is lowered again until in contact with the cutters 22, in response to a signal given through the control disc and corresponding to a particular position of the knife 24 and the rollers 21 and 23 of the perforation device, while the stop 20 is also taken into the retracted and the stop 19 into the extended position and the directions of rotation of the drive rollers 16, 17 are brought back into the normal directions B, C, in which the pressure roller 18 is swung down until it rests against the drive roller 17.
  • the material web 8 which until now has been standing ready, shoots forward and through between the rollers 21 and 23 to the cutting device 24, 25, where the front end 8' of this web arrives just after the cutter 24 has passed the anvil 25, so that the first piece of the material web 8 cut off is slightly shorter, i.e. a few millimetres shorter, than normal, in order to prevent too narrow a piece which is unusable from being cut off, while a slightly too short piece is admissible in the above-mentioned type of packs.
  • the unwound roll 1 can be replaced by a new, full roll of material.
  • the reversing clutch is provided with an extra acceleration which in reversing the direction of rotation of the rollers 16, 17 make these rollers to rotate e.g. twice or three times a fast, e.g. through a gear transmission.
  • the incomplete packs obtained in the packing machine as result are, however, ejected from this machine, so that this machine does not need to stop.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (3)

  1. Dispositif permettant de couper en continu des pièces de matière en feuille provenant d'une nappe de matière et d'alimenter lesdites pièces à une machine de traitement, en particulier, une machine d'emballage, comprenant des moyens pour supporter à rotation des rouleaux (1, 2) de matière en feuille (3, 8), un rouleau de travail (1) et un rouleau d'attente (2), des moyens de guidage (4-7, 33; 9-12, 32) pour guider la nappe de matière de travail déroulée du rouleau de travail et la nappe de matière d'attente déroulée du rouleau d'attente à un premier (13) et un second canal de guidage (14), respectivement, lesdits canaux étant dotés de moyens de positionnement (19, 20) pour l'extrémité libre de la nappe de la matière d'attente, lesdits canaux convergeant vers une sortie commune (15) en prévoyant en amont des entrées desdits canaux des rouleaux d'entraînement (16, 17) situés à une certaine distance l'un de l'autre et un rouleau presseur (18) disposé entre lesdits rouleaux, ledit rouleau presseur étant mobile entre une position dans laquelle il presse une nappe de matière contre un rouleau d'entraînement et une position dans laquelle il presse l'autre nappe de matière contre l'autre rouleau d'entraînement de telle sorte que, lorsque le dispositif est en service, l'un des rouleaux d'entraînement soit un rouleau opérant et l'autre rouleau d'entraînement soit un rouleau inopérant, un dispositif de coupe (24, 25) étant prévu en aval de la sortie des canaux de guidage, ledit dispositif de coupe comprenant un élément de coupe rotatif (24) et une enclume stationaire (25) qui interagissent, et des moyens (28, 29) pour indiquer que le rouleau de matière de travail est presque complètement déroulé, caractérisé en ce que l'entraînement des rouleaux d'entraînement (16, 17) est réversible et les premiers moyens indicateurs (28), en indiquant que le rouleau de travail est presque complètement déroulé, émettent un premier signal à la suite duquel le sens de rotation d'au moins le rouleau d'entraînement de travail est inversé relativement à la direction normale, de telle sorte que la nappe de matière de travail reposant entre le rouleau d'entraînement et le rouleau presseur soit retirée, et les seconds moyens indicateurs (29), tels qu'une cellule photo-électrique, émettent un second signal lorsque l'extrémité de la nappe de matière retirée se déroule à leur niveau, à la suite de quoi l'entraînement d'au moins l'autre rouleau d'entraînement inopérant est placé dans la direction de rotation normale, le rouleau presseur est déplacé dans la position dans laquelle ledit rouleau presse la nappe de matière en attente contre ledit rouleau d'entraînement entraîné de manière correspondante, et un dispositif de perforation est prévu entre le dispositif de coupe et la sortie des canaux de guidage, ledit dispositif de perforation comprenant un rouleau (21) entraîné en synchronisme avec l'élément de coupe rotatif (24) et comportant des couteaux de perforation (22) et un contre-rouleau (23) qui est également entraîné et interagit avec lesdits couteaux, l'un de ces rouleaux étant monté de manière à pouvoir se déplacer de telle manière que, à la suite dudit premier signal provenant desdits moyens indicateurs, il soit relevé du rouleau coopératif et que, à la suite dudit second signal, il soit renvoyé dans la position dans laquelle il interagit avec l'autre rouleau.
  2. Dispositif selon la revendication 1, caractérisé en ce que ledit second signal travaille conjointement avec un signal provenant de l'entraînement du dispositif de coupe de telle manière que le rouleau presseur (18) soit dégagé d'un rouleau d'entraînement vis-à-vis de l'autre à un tel moment, à la suite de quoi la nappe de matière en attente est déplacée vers l'avant, où l'extrémité frontale de ladite nappe atteint le dispositif de coupe juste après que l'élément de coupe rotatif aura dépassé l'enclume.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les moyens de positionnement (19, 20) des canaux de guidage sont formés par des éléments d'arrêt qui sont mobiles entre une position étendue et une position rétractée de telle manière que, dans la position étendue, le canal correspondant soit bloqué, tandis que les positions de ces éléments peuvent être modifiées en réponse audit second signal.
EP19900203039 1989-11-17 1990-11-15 Dispositif pour couper des morceaux de matériau en feuille de façon continue à partir d'une bande et pour transporter ces morceaux vers une machine de traitement Expired - Lifetime EP0429135B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8902848 1989-11-17
NL8902848A NL8902848A (nl) 1989-11-17 1989-11-17 Inrichting voor het continu toevoeren van stukken velvormig materiaal naar een verwerkingsmachine.

Publications (2)

Publication Number Publication Date
EP0429135A1 EP0429135A1 (fr) 1991-05-29
EP0429135B1 true EP0429135B1 (fr) 1993-09-01

Family

ID=19855648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900203039 Expired - Lifetime EP0429135B1 (fr) 1989-11-17 1990-11-15 Dispositif pour couper des morceaux de matériau en feuille de façon continue à partir d'une bande et pour transporter ces morceaux vers une machine de traitement

Country Status (3)

Country Link
EP (1) EP0429135B1 (fr)
DE (1) DE69003076T2 (fr)
NL (1) NL8902848A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1379457A1 (fr) 2001-04-10 2004-01-14 Cermex-Quest Conditionnement Procede pour recharger une fardeleuse a l'aide d'un film plastique, et fardeleuse mettant en oeuvre le procede
EP3554979A1 (fr) * 2016-12-16 2019-10-23 Futura S.p.A. Installation et processus pour la production de bûches en papier

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1249668B (it) * 1991-06-20 1995-03-09 Cavanna Spa Unita' per l'erogazione di materiale in foglio, ad esempio per l`erogazione di fogli di cartone o cartoncino in macchine confezionatrici automatiche.
IT1266919B1 (it) * 1994-08-12 1997-01-21 Tecnau Srl Apparecchiatura di trattamento dei moduli continui stampati da calcolatore
ITBO20010470A1 (it) * 2001-07-24 2003-01-24 G D M S P A Unita' di alimentazione di materiale in nastro ad una linea per la realizzazione di articoli igienici intimi
IT1392527B1 (it) 2008-12-24 2012-03-09 A C M I Societa Per Azioni Gruppo di alimentazione di nastro di confezionamento da bobine, con cambio automatico della bobina di alimentazione, per macchine per confezionare oggetti
EP2336033B1 (fr) * 2009-12-21 2013-01-09 MSK - Verpackungs-Systeme GmbH Dispositif et procédé destinés à l'enveloppement d'une pile de marchandise à l'aide d'une feuille
DE102014015433B4 (de) * 2014-10-14 2017-09-07 Mcs Micronic Computer Systeme Gmbh Einrichtung
CN115303834A (zh) * 2022-08-10 2022-11-08 浙江晶蓝印刷机械有限公司 一种全自动不停机放卷机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS167015B1 (fr) * 1973-07-24 1976-04-29
IT1146017B (it) * 1981-04-09 1986-11-12 Sasib Spa Metodo e dispositivo per l alimentazione continua autoselettiva di nastri anche con tratti di scarto in un dispositivo elettronico per il taglio progressivo di bobine di carta stampata a foglietti
IT1145778B (it) * 1981-06-03 1986-11-12 Gd Spa Dispositivo di alimentazione e taglio in spezzoni un nastro continuo con cambio automatico della bobina di svolgimento del nastro
GB2141108B (en) * 1983-05-17 1985-10-30 Koyo Jidoki Continuous feeding tape
EP0294321B1 (fr) * 1987-05-11 1991-12-11 SIG Schweizerische Industrie-Gesellschaft Dispositif pour alimenter une machine d'emballage sélectivement à partir d'une des deux bandes de matériau d'enveloppement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1379457A1 (fr) 2001-04-10 2004-01-14 Cermex-Quest Conditionnement Procede pour recharger une fardeleuse a l'aide d'un film plastique, et fardeleuse mettant en oeuvre le procede
EP3554979A1 (fr) * 2016-12-16 2019-10-23 Futura S.p.A. Installation et processus pour la production de bûches en papier

Also Published As

Publication number Publication date
DE69003076T2 (de) 1994-03-10
DE69003076D1 (de) 1993-10-07
EP0429135A1 (fr) 1991-05-29
NL8902848A (nl) 1991-06-17

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