EP0411257A1 - Device for building up stacks of cloth or similar products of fibre materials - Google Patents

Device for building up stacks of cloth or similar products of fibre materials Download PDF

Info

Publication number
EP0411257A1
EP0411257A1 EP90109237A EP90109237A EP0411257A1 EP 0411257 A1 EP0411257 A1 EP 0411257A1 EP 90109237 A EP90109237 A EP 90109237A EP 90109237 A EP90109237 A EP 90109237A EP 0411257 A1 EP0411257 A1 EP 0411257A1
Authority
EP
European Patent Office
Prior art keywords
cloth
stack
cloths
webs
fingers
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.)
Granted
Application number
EP90109237A
Other languages
German (de)
French (fr)
Other versions
EP0411257B1 (en
Inventor
Gilbert Dipl.-Ing.(Fh) Hauschild
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0411257A1 publication Critical patent/EP0411257A1/en
Application granted granted Critical
Publication of EP0411257B1 publication Critical patent/EP0411257B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • B65H45/20—Zig-zag folders

Definitions

  • the invention relates to a device for forming stacks of folded, zigzag nested cloths, sheets or the like, which consist of fibrous materials.
  • cloths or the like made from fiber materials of any kind, such as cellulose, natural and / or artificial staple fibers or mixtures of these fibers. can exist, which means all sheet-shaped blanks. In particular come cellulose or the like. Wipes for hygienic or cosmetic and the like. Purposes.
  • the individualized wipes are placed one inside the other in such a way that a part of one wipe is covered by a part of the next wipe.
  • This device is supplied with two fibrous webs, each of which is assigned a cutting device for transversely cutting the webs into individual sheets offset from one another and which with folding devices for the individual sheets along a transverse line with a shaft receiving the stack of sheets and with a device for depositing and holding it down associated therewith of the top cloth is equipped in the formation of the stack.
  • the device for storing and for holding down the top cloth of the stack consists of comb-shaped branches with finger fingers that separate the individual cloths from the remove these feed rollers and press them down onto the stack, as well as from comb-like hold-down devices which, after placing the top cloth in each case, lie over the stack in the cloth stacking shaft in order to hold the stack in the shaft under a certain tension and move it upwards To prevent storage of each cloth.
  • Both the laying fingers and the holding fingers of the hold-down devices that reach between the laying fingers must work in time with the machine, i.e. in particular, that they are must be active each time a cloth is deposited.
  • the working speed of the device is limited, in particular because masses falling in weight have to be moved relatively quickly, in particular accelerated and decelerated, resulting in undesirable vibrations if the device runs too quickly surrender.
  • the invention has for its object to improve devices of the type in question, so as to reduce the inertial forces and thus speed up the workflow and thus increase productivity, without the quality and the exact design of the cloth stack are impaired.
  • the device has an identical mirror image to the central plane M, so that, for reasons of simplification, only one side of the device is described below with regard to its structure.
  • the device 11 for forming a cloth stack 12 in a receiving shaft 13, which is arranged in the central plane M, has devices for feeding the material webs 14 and 15, which ge between the two knife rollers 18 and 19 by means of the pull rollers 16, 17 leads.
  • the knives 20 and 21 of the knife rollers 18, 19 cut the webs 14 and 15 transversely into individual sections or cloths 22 each of the same length, which are then transferred to the folding rollers 23.
  • These folding rollers 23 are equipped with mouth pieces 24 arranged along a surface line for sucking in or dispensing the respective front edges 25 of the individual sheets 22, to which a vacuum source can be connected.
  • the folding rollers 23 are provided over their circumference with a plurality of mutually parallel, not shown grooves, in which the laying fingers 26 of the comb-like branches 27 can engage with their front ends to reach behind the front edge 25 of the supplied cloths 22 and they their downward movement to be able to press down on the cloth stack 12.
  • the cantilevers 27 consist of a beam 28 which extends below the folding roller 23 and extends parallel thereto, on which the cantilever fingers 26 are fastened at regular intervals from one another.
  • the rear ends of the push rods 30 are mounted on the crank pin 32 of the crank disks 33.
  • the lower ends of the rocker arms 31 perform rocking movements around the fixed bearing pins 34.
  • Lever arms 35 are also attached to the cantilever beam 28, the rear ends of which are coupled to the crank rods 37 by means of bearing pins 36, the lower ends of which are seated on the crank pin 38 of the crank disks 39.
  • the crank disks 33, 39 or their shafts are driven synchronously with one another via a gear transmission 40, depending on the rotation of the knife rollers 18, 19 or the folding rollers 23.
  • crank drives 32, 33 acting on the push rods 30 provide for a forward and backward movement of the cantilever beam 28.
  • the crank drives 38, 39 acting on the crank rods 37 cause the cantilever beam 28 and thus the laying finger 26 to pivot through the lever arms 35 during their forward movement. and backward movement.
  • the depositing device for the cloths 22 on each side of the cloth stacking shaft 13 has two offshoots 27 and 27 ', the bars 28 and 28' of which are arranged one above the other but at a distance from one another in order to have the necessary freedom of movement .
  • the laying fingers 26 on the laying bar 28 are spaced so far apart that the laying fingers 26 'on the laying bar 28' can grip between them in order to remove a cloth 22 or 22 'from the folding roller 23 one after the other and place them on the cloth stack 12.
  • the drive mechanisms for the offshoots 27 and 27 ' correspond to those of the embodiment according to Fig. 1.
  • the push rods 30' and the crank rods 37 ' are offset from the push rods 30 and the crank rods 37 by 180 o on the crank disks 33 and 39, respectively , which in this case only rotate at half the speed of rotation, because the fingers 26 and 26 'need to capture and store only every second cloth 22 and 22' led out by the folding roller 23 '. This allows the working speed of the offshoots 27, 27 'to be reduced by half for the same output, which offers considerable advantages.
  • the sequence of movements of the moving parts of the depositing device according to FIG. 2 can be seen particularly clearly from the schematic drawing of FIG. 3.
  • the solid lines relate to the individual elements of the offshoot 27, while the dashed lines draw the individual elements of the offshoot 27 '.
  • the front ends of the placing fingers 26 are in position 1 of the curve K, which describe them during a movement cycle.
  • the crank pins 32 and 38 of the two crank drives then also assume position 1 on the crank circles on which they move.
  • the deposit 27 is almost completely advanced against the cloth stacking shaft 13, the fingers 26 engaging behind the cloth 22.
  • the offshoot 27 ' is almost completely retracted, the front ends of the fingers 26' still resting on the cloth stack 12 or on the overlying cloth 22 'to hold them down until the fingers 26 of the offshoot 27 after their downward movement longitudinally the curve K take over their task.
  • crank drives mentioned and illustrated by way of example
  • other levers or the like can of course be used. Use shoots that can easily achieve certain optimal curve shapes along which the front ends of the laying fingers should move, with the least design effort.
  • the depositing fingers of the depositing device have the task of not only depositing the individual, folded sheets on the sheet stack, but also putting it down or on it hold so as to form the exact stack of towels 12, in which the fold lines of the towels are exactly one above the other and parallel to each other, so that the subsequent packaging of parts of the towel stack 12 with each a certain predetermined number of towels is significantly simplified. This saves in particular the otherwise necessary hold-down fingers that are present in addition to the placement fingers.
  • the device designed in accordance with the invention makes it possible to increase its performance considerably, since the replication of the offshoots reduces their working speed, so that at this otherwise problematic point on the device there are no problems which would limit productivity.

Abstract

Device for building up stacks of folded cloths, sheets or the like of fibre materials of any type, which are laid in zig-zag manner one inside the other and individually laid one inside the other in such a manner that a part of the one cloth is covered by a part of the following cloth, having an apparatus for feeding two webs of fibre material, having a cutting device associated with each of the two webs for cutting the webs crosswise into individual cloths offset from one another, having a folding device for folding the separated cloths along a transverse line, having a shaft receiving the stack of cloths and having an apparatus associated therewith for depositing and holding down the in each case uppermost cloth of the stack, in which each of the two folding rollers (23) is allocated at least one comb-like delivery device (27) on both sides of the stack shaft (13), which delivery device comprises a crosspiece (28) having a plurality of delivery fingers (26), which crosspiece is guided and swivelled by means of first pinions (32, 33) via connecting rods (30) backwards and forwards relative to the stack of cloths (12) and by means of second pinions (35, 36, 37, 38, 39) in such a manner that the front ends of the delivery fingers (26) moving forwards and backwards and up and down engage behind the particular cloth (22) to be delivered, press it down against the stack of cloths (12) and secure said cloth in the shaft (13) until a new movement cycle starts. …<IMAGE>…

Description

Die Erfindung betrifft eine Vorrichtung zum Bilden von Stapeln aus gefalteten, zickzackartig ineinandergelegten Tüchern, Blättern od.dgl., die aus Faserstoffen bestehen. Nachstehend wird der Einfachheit halber ausschließlich von Tüchern ge­sprochen, die aus Faserstoffen jedweder Art, wie Zellulose-, natürlichen und/oder künstlichen Stapelfasern oder Gemischen dieser Fasern od.dgl. bestehen können, worunter alle blatt­förmigen Zuschnitte zu verstehen sind. Insbesondere kommen Zellstoff- od.dgl. Tücher für hygienische bzw. kosmetische u.dgl. Zwecke in Betracht. Mittels der Vorrichtung werden die vereinzelten Tücher derart ineinandergelegt, daß ein Teil des einen Tuches von einem Teil des nächstfolgenden Tuches über­deckt ist.The invention relates to a device for forming stacks of folded, zigzag nested cloths, sheets or the like, which consist of fibrous materials. For the sake of simplicity, the following only speaks of cloths or the like made from fiber materials of any kind, such as cellulose, natural and / or artificial staple fibers or mixtures of these fibers. can exist, which means all sheet-shaped blanks. In particular come cellulose or the like. Wipes for hygienic or cosmetic and the like. Purposes. By means of the device, the individualized wipes are placed one inside the other in such a way that a part of one wipe is covered by a part of the next wipe.

Dieser Vorrichtung werden zwei Faserstoffbahnen zugeführt, welchen je eine Schneidvorrichtung zum transversalen Zer­schneiden der Bahnen in gegeneinander versetzte Einzeltücher zugeordnet ist und welche mit Falteinrichtungen für die ver­einzelten Tücher längs einer transversalen Linie mit einem den Tücherstapel aufnehmenden Schacht und mit einer diesem zuge­ordneten Einrichtung zum Ablegen und Niederhalten des jeweils obersten Tuches bei der Bildung des Stapels ausgerüstet ist.This device is supplied with two fibrous webs, each of which is assigned a cutting device for transversely cutting the webs into individual sheets offset from one another and which with folding devices for the individual sheets along a transverse line with a shaft receiving the stack of sheets and with a device for depositing and holding it down associated therewith of the top cloth is equipped in the formation of the stack.

Eine derartige Vorrichtung ist bereits aus der US-PS 27 61 676 bekanntgeworden. Bei dieser Vorrichtung besteht die Einrichtung zum Ablegen und zum Niederhalten des jeweils obersten Tuches des Stapels aus kammartig ausgebildeten Ablegern mit Ablegefingern, die die einzelnen Tücher von den diese zuführenden Walzen abnehmen und auf den Stapel nieder­drücken sowie aus kammartig ausgebildeten, mit Haltefingern versehenen Niederhaltern, die sich nach Ablage des jeweils obersten Tuches über den Stapel im Tuchstapelschacht legen, um den im Schacht unter einer gewissen Spannung stehenden Stapel festzuhalten und ein Aufwärtsbewegen desselben nach Ablage eines jeden Tuches zu verhindern.Such a device has already become known from US-PS 27 61 676. In this device, the device for storing and for holding down the top cloth of the stack consists of comb-shaped branches with finger fingers that separate the individual cloths from the remove these feed rollers and press them down onto the stack, as well as from comb-like hold-down devices which, after placing the top cloth in each case, lie over the stack in the cloth stacking shaft in order to hold the stack in the shaft under a certain tension and move it upwards To prevent storage of each cloth.

Der vorerwähnte Mechanismus ist komplex und konstruktiv kompliziert aufgebaut. Sowohl die Ablegefinger als auch die Haltefinger der Niederhalter, die zwischen die Ablegefinger greifen, müssen im Takt der Maschine arbeiten, d.h. insbe­sondere, daß sie bei jedem Arbeitszyklus, d.h. bei jeder Ablage eines Tuches, aktiv werden müssen. Um eine saubere Ablage der gefalteten Tücher und eine korrekte Stapelbildung zu gewährleisten, ist die Arbeitsgeschwindigkeit der Vor­richtung begrenzt, insbesondere weil auch ins Gewicht fallende Massen relativ rasch bewegt, insbesondere be­schleunigt wie auch verzögert werden müssen, woraus sich unerwünschte Schwingungen bei zu schnellem Lauf der Vorrich­tung ergeben.The mechanism mentioned above is complex and structurally complex. Both the laying fingers and the holding fingers of the hold-down devices that reach between the laying fingers must work in time with the machine, i.e. in particular, that they are must be active each time a cloth is deposited. In order to ensure clean storage of the folded towels and correct stack formation, the working speed of the device is limited, in particular because masses falling in weight have to be moved relatively quickly, in particular accelerated and decelerated, resulting in undesirable vibrations if the device runs too quickly surrender.

Der Erfindung liegt die Aufgabe zugrunde, Vorrichtungen der in Betracht kommenden Art zu verbessern, um so die Massen­kräfte zu verringern und so die Arbeitsabläufe zu be­schleunigen und damit die Produktivität zu steigern, ohne daß die Qualität und die exakte Ausbildung der Tücherstapel beeinträchtigt werden.The invention has for its object to improve devices of the type in question, so as to reduce the inertial forces and thus speed up the workflow and thus increase productivity, without the quality and the exact design of the cloth stack are impaired.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorge­schlagen, die in Betracht kommende Vorrichtung in der Weise auszubilden, wie dies in den Ansprüchen 1 und 2 im einzelnen angegeben ist.To achieve this object, it is proposed according to the invention to design the device in question in the manner as specified in claims 1 and 2 in detail.

Weitere Merkmale des Gegenstands der Erfindung gehen aus den Unteransprüchen und aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels einer Vorrichtung zum Bilden von Stapeln aus Faserstofftüchern hervor, die in den Figuren 1 bis 4 der Zeichnung schematisch dargestellt sind. Es zeigen:

  • Fig. 1 einen Querschnitt durch eine beiderseits des Tücher­stapelschachtes mit je einem Ableger ausgerüstete Vorrichtung, aus welcher deren konstruktiver Aufbau erkennbar ist,
  • Fig. 2 einen Querschnitt durch eine Vorrichtung, deren Ablegeeinrichtung je zwei Ableger aufweist,
  • Fig. 3 eine Aufsicht auf die Vorrichtung nach Fig. 2, und
  • Fig. 4 das Prinzip der erfindungsgemäß ausgebildeten Ablege- und Niederhalteeinrichtung der Vorrich­tung nach Fig. 2 und 3.
Further features of the object of the invention emerge from the subclaims and from the following description of a preferred exemplary embodiment of a device for forming stacks from fiber cloths, which are shown schematically in FIGS. 1 to 4 of the drawing. Show it:
  • 1 shows a cross section through a device equipped on both sides of the cloth stacking shaft, each with a cantilever, from which its structural design can be seen,
  • 2 shows a cross section through a device, the depositing device of which has two offshoots each,
  • Fig. 3 is a plan view of the device of FIG. 2, and
  • 4 shows the principle of the depositing and holding-down device of the device according to FIGS. 2 and 3.

Wie aus Fig. 1 ersichtlich, ist die Vorrichtung spiegel­bildlich zu der Mittelebene M identisch aufgebaut, so daß nachfolgend aus Vereinfachungsgründen lediglich die eine Seite der Vorrichtung hinsichtlich ihres Aufbaus beschrieben ist.As can be seen from FIG. 1, the device has an identical mirror image to the central plane M, so that, for reasons of simplification, only one side of the device is described below with regard to its structure.

Die Vorrichtung 11 zum Bilden eines Tücherstapels 12 in einem diesen aufnehmenden Schacht 13, der in der Mittelebene M angeordnet ist, weist Einrichtungen zum Zuführen der Materialbahnen 14 bzw. 15 auf, welche mittels der Zugwalzen 16, 17 zwischen die beiden Messerwalzen 18 und 19 ge­ führt werden. Die Messer 20 und 21 der Messerwalzen 18, 19 zerschneiden die Bahnen 14 bzw. 15 transversal in einzelne Abschnitte bzw. Tücher 22 jeweils gleicher Länge, die dann an die Faltwalzen 23 übergeben werden. Diese Faltwalzen 23 sind mit längs einer Mantellinie angeordneten Mundstücken 24 zum Ansaugen bzw. Abgeben der jeweiligen Vorderkanten 25 der Einzeltücher 22 ausgestattet, an die eine Vakuumquelle an­schließbar ist. Die Faltwalzen 23 sind über ihren Umfang mit einer Vielzahl von parallel zueinander angeordneten, nicht dargestellten Nuten versehen, in die die Ablegefinger 26 der kammartig ausgebildeten Ableger 27 mit ihren vorderen Enden eingreifen können, um hinter die Vorderkante 25 der zuge­führten Tücher 22 greifen und sie bei ihrer Abwärtsbewegung nach unten auf den Tücherstapel 12 niederdrücken zu können.The device 11 for forming a cloth stack 12 in a receiving shaft 13, which is arranged in the central plane M, has devices for feeding the material webs 14 and 15, which ge between the two knife rollers 18 and 19 by means of the pull rollers 16, 17 leads. The knives 20 and 21 of the knife rollers 18, 19 cut the webs 14 and 15 transversely into individual sections or cloths 22 each of the same length, which are then transferred to the folding rollers 23. These folding rollers 23 are equipped with mouth pieces 24 arranged along a surface line for sucking in or dispensing the respective front edges 25 of the individual sheets 22, to which a vacuum source can be connected. The folding rollers 23 are provided over their circumference with a plurality of mutually parallel, not shown grooves, in which the laying fingers 26 of the comb-like branches 27 can engage with their front ends to reach behind the front edge 25 of the supplied cloths 22 and they their downward movement to be able to press down on the cloth stack 12.

Die Ableger 27 bestehen aus einem sich unterhalb der Falt­walze 23 und parallel zu dieser erstreckenden Balken 28, an welchem die Ablegefinger 26 in gleichmäßigen Abständen von­einander befestigt sind. An den beiden Seiten des Ableger­balkens 28 befinden sich Lagerzapfen 29, an welchen einer­seits die Schubstangen 30 und andererseits die Schwinghebel 31 angreifen. Die hinteren Enden der Schubstangen 30 sind auf den Kurbelzapfen 32 der Kurbelscheiben 33 gelagert. Die unteren Enden der Schwinghebel 31 führen um die ortsfesten Lagerzapfen 34 Schwingbewegungen aus. Am Ablegerbalken 28 sind weiterhin Hebelarme 35 befestigt, deren hintere Enden mittels Lagerzapfen 36 mit den Kurbelstangen 37 gekuppelt sind, deren untere Enden auf den Kurbelzapfen 38 der Kurbel­scheiben 39 sitzen. Die Kurbelscheiben 33, 39 bzw. deren Wellen sind über ein Zahnradgetriebe 40 synchron zueinander angetrieben, und zwar in Abhängigkeit von der Umdrehung der Messerwalzen 18, 19 bzw. der Faltwalzen 23.The cantilevers 27 consist of a beam 28 which extends below the folding roller 23 and extends parallel thereto, on which the cantilever fingers 26 are fastened at regular intervals from one another. There are bearing journals 29 on both sides of the cantilever beam 28, on which the push rods 30 on the one hand and the rocking levers 31 on the other hand engage. The rear ends of the push rods 30 are mounted on the crank pin 32 of the crank disks 33. The lower ends of the rocker arms 31 perform rocking movements around the fixed bearing pins 34. Lever arms 35 are also attached to the cantilever beam 28, the rear ends of which are coupled to the crank rods 37 by means of bearing pins 36, the lower ends of which are seated on the crank pin 38 of the crank disks 39. The crank disks 33, 39 or their shafts are driven synchronously with one another via a gear transmission 40, depending on the rotation of the knife rollers 18, 19 or the folding rollers 23.

Die auf die Schubstangen 30 einwirkenden Kurbeltriebe 32, 33 sorgen für eine Vor- und Rückwärtsbewegung des Ableger­balkens 28. Die auf die Kurbelstangen 37 einwirkenden Kurbeltriebe 38, 39 bewirken über die Hebelarme 35 ein Ver­schwenken des Ablegerbalkens 28 und damit der Ablegefinger 26 während deren Vorwärts- und Rückwärtsbewegung.The crank drives 32, 33 acting on the push rods 30 provide for a forward and backward movement of the cantilever beam 28. The crank drives 38, 39 acting on the crank rods 37 cause the cantilever beam 28 and thus the laying finger 26 to pivot through the lever arms 35 during their forward movement. and backward movement.

Bei der Ausführungsform nach Fig. 2 weist die Ablegeeinrich­tung für die Tücher 22 auf jeder Seite des Tücherstapel­schachtes 13 je zwei Ableger 27 und 27′ auf, deren Balken 28 und 28′ übereinanderliegend, jedoch im Abstand voneinander angeordnet sind, um den notwendigen Bewegungsspielraum zu haben. Die Ablegefinger 26 am Ablegerbalken 28 haben einen so weiten Abstand voneinander, daß die Ablegefinger 26′ am Ablegerbalken 28′ zwischen diese greifen können, um jeweils nacheinander ein Tuch 22 bzw. 22′ von der Faltwalze 23 abzu­nehmen und auf dem Tücherstapel 12 abzulegen. Die Antriebs­mechanismen für die Ableger 27 und 27′ entsprechen den­jenigen der Ausführungsform nach Fig. 1. Die Schubstangen 30′ und die Kurbelstangen 37′ sind jedoch gegenüber den Schubstangen 30 bzw. den Kurbelstangen 37 um 180o versetzt an den Kurbelscheiben 33 bzw. 39 angelenkt, die in diesem Falle nur mit der halben Umdrehungsgeschwindigkeit umlaufen, weil die Finger 26 bzw. 26′ jeweils nur jedes zweite, von der Faltwalze 23 herausgeführte Tuch 22 bzw. 22′ zu erfassen und abzulegen brauchen. Dadurch läßt sich die Arbeitsge­schwindigkeit der Ableger 27, 27′ bei gleicher Leistung um die Hälfte verringern, was erhebliche Vorteile bietet.In the embodiment according to FIG. 2, the depositing device for the cloths 22 on each side of the cloth stacking shaft 13 has two offshoots 27 and 27 ', the bars 28 and 28' of which are arranged one above the other but at a distance from one another in order to have the necessary freedom of movement . The laying fingers 26 on the laying bar 28 are spaced so far apart that the laying fingers 26 'on the laying bar 28' can grip between them in order to remove a cloth 22 or 22 'from the folding roller 23 one after the other and place them on the cloth stack 12. The drive mechanisms for the offshoots 27 and 27 'correspond to those of the embodiment according to Fig. 1. The push rods 30' and the crank rods 37 'are offset from the push rods 30 and the crank rods 37 by 180 o on the crank disks 33 and 39, respectively , which in this case only rotate at half the speed of rotation, because the fingers 26 and 26 'need to capture and store only every second cloth 22 and 22' led out by the folding roller 23 '. This allows the working speed of the offshoots 27, 27 'to be reduced by half for the same output, which offers considerable advantages.

Sieht man beispielsweise gar drei Ableger 27 vor, so ver­ringert sich deren Arbeitsgeschwindigkeit auf ein Drittel.If, for example, even three offshoots 27 are provided, their working speed is reduced to a third.

Der Bewegungsablauf der bewegten Teile der Ablegeeinrichtung nach Fig. 2 ist der Schemazeichnung der Fig. 3 besonders deutlich zu entnehmen. Die ausgezogenen Linien beziehen sich auf die einzelnen Elemente des Ablegers 27, während die gestrichelen Linienzüge die einzelnen Elemente des Ablegers 27′ kennzeichnen.The sequence of movements of the moving parts of the depositing device according to FIG. 2 can be seen particularly clearly from the schematic drawing of FIG. 3. The solid lines relate to the individual elements of the offshoot 27, while the dashed lines draw the individual elements of the offshoot 27 '.

In der in Fig. 3 dargestellten Lage befinden sich die vorde­ren Enden der Ablegefinger 26 in der Position 1 der Kurve K, die diese während eines Bewegungszyklus beschreiben. Die Kurbelzapfen 32 bzw. 38 der beiden Kurbeltriebe nehmen dann gleichfalls die Position 1 auf den Kurbelkreisen ein, auf welchen sich diese bewegen. Wie ersichtlich, ist der Ableger 27 fast vollständig gegen den Tücherstapelschacht 13 vorge­schoben, wobei die Finger 26 das Tuch 22 hintergreifen. Der Ableger 27′ ist dagegen nahezu vollständig zurückgezogen, wobei die vorderen Enden der Finger 26′ noch auf dem Tücher­stapel 12 bzw. auf dessen zu oberst liegendem Tuch 22′ auf­liegen, um diese niederzuhalten, bis die Finger 26 des Ab­legers 27 nach ihrer Abwärtsbewegung längs der Kurve K deren Aufgabe übernehmen.In the position shown in FIG. 3, the front ends of the placing fingers 26 are in position 1 of the curve K, which describe them during a movement cycle. The crank pins 32 and 38 of the two crank drives then also assume position 1 on the crank circles on which they move. As can be seen, the deposit 27 is almost completely advanced against the cloth stacking shaft 13, the fingers 26 engaging behind the cloth 22. The offshoot 27 ', on the other hand, is almost completely retracted, the front ends of the fingers 26' still resting on the cloth stack 12 or on the overlying cloth 22 'to hold them down until the fingers 26 of the offshoot 27 after their downward movement longitudinally the curve K take over their task.

Anstelle der beispielhaft genannten und dargestellten Kurbeltriebe lassen sich selbstverständlich sonstige Hebel- od.dgl. Triebe anwenden, die in einfacher Weise bei gering­stem konstruktiven Aufwand jeweils bestimmte optimale Kurvenformen, längs welcher sich die vorderen Enden der Ablegefinger bewegen sollen, erreichen lassen.Instead of the crank drives mentioned and illustrated by way of example, other levers or the like can of course be used. Use shoots that can easily achieve certain optimal curve shapes along which the front ends of the laying fingers should move, with the least design effort.

Aus vorstehenden Darlegungen ist erkennbar, daß die Ablege­finger der Ablegeeinrichtung die Aufgabe haben, nicht nur die vereinzelten, gefalteten Tücher auf dem Tücherstapel abzulegen, sondern auch auf diesem nieder- bzw. festzu­ halten, um so exakte Tücherstapel 12 zu bilden, bei welchen die Falzlinien der Tücher exakt übereinander und parallel zueinander liegen, so daß das anschließende Verpacken von Teilen des Tücherstapels 12 mit jeweils einer bestimmten vorgegebenen Anzahl an Tüchern wesentlich vereinfacht ist. Dadurch lassen sich insbesondere die ansonst notwendigen, neben den Ablegefingern vorhandenen Niederhaltefinger ein­sparen.From the above explanations it can be seen that the depositing fingers of the depositing device have the task of not only depositing the individual, folded sheets on the sheet stack, but also putting it down or on it hold so as to form the exact stack of towels 12, in which the fold lines of the towels are exactly one above the other and parallel to each other, so that the subsequent packaging of parts of the towel stack 12 with each a certain predetermined number of towels is significantly simplified. This saves in particular the otherwise necessary hold-down fingers that are present in addition to the placement fingers.

Die erfindungsgemäß ausgebildete Vorrichtung ermöglicht es, deren Leistungsfähigkeit beträchtlich zu steigern, da durch die Vervielfältigung der Ableger deren Arbeitsgeschwindig­keit verringert ist, so daß an dieser ansonst problema­tischen Stelle der Vorrichtung keine Probleme auftreten, die die Produktivität zu begrenzen pflegte.The device designed in accordance with the invention makes it possible to increase its performance considerably, since the replication of the offshoots reduces their working speed, so that at this otherwise problematic point on the device there are no problems which would limit productivity.

Claims (7)

1. Vorrichtung zum Bilden von Stapeln aus gefalteten, zick­zackartig ineinandergelegten Tüchern, Blättern od.dgl. aus Faserstoffen jedweder Art, welche einzeln derart inein­andergelegt werden, daß ein Teil des einen Tuches von einem Teil des nächstfolgenden Tuches überdeckt ist, mit einer Einrichtung zum Zuführen von zwei Faserstoffbahnen, mit einer jeder der beiden Bahnen zugeordneten Schneidvor­richtung zum transversalen Zerschneiden der Bahnen in gegeneinander versetzte Einzeltücher, mit einer Faltein­richtung für die vereinzelten Tücher längs einer trans­versalen Linie, mit einem den Tücherstapel aufnehmenden Schacht und mit einer diesem zugeordneten Einrichtung zum Ablegen und zum Niederhalten des jeweils obersten Tuches des Stapels, dadurch gekennzeichnet, daß jeder der beiden Faltwalzen (23) wenigstens ein kammartiger Ableger (27) auf beiden Seiten des Stapelschachtes (13) zugeordnet ist, der aus einem Ablegerbalken (28) mit einer Vielzahl von Ablegefingern (26) besteht, welcher seitlich geführt und mittels erster Triebe (32,33) über Schubstangen (30) gegenüber dem Tücherstapel (12) vor und zurück und mittels zweiter Triebe (35,36,37,38,39) derart geschwenkt wird, daß die vorderen Enden der vor und zurück sowie auf und nieder bewegbaren Ablegefinger (26) das jeweils abzu­legende Tuch (22) hintergreifen, nach unten gegen den Tücherstapel (12) drücken und dieses im Schacht (13) fest­halten, bis ein neuer Bewegungszyklus beginnt.1. Device for forming stacks of folded, zigzag nested cloths, sheets or the like. from fibrous materials of any kind, which are individually placed one inside the other in such a way that a part of the one cloth is covered by a part of the next cloth, with a device for feeding two fibrous webs, with a cutting device assigned to each of the two webs for transversely cutting the webs into one another offset individual sheets, with a folding device for the individual sheets along a transverse line, with a shaft receiving the sheet stack and with a device associated therewith for depositing and holding down the respective top sheet of the stack, characterized in that each of the two folding rollers (23) at least one comb-like cantilever (27) is assigned on both sides of the stacking shaft (13), which consists of a cantilever beam (28) with a plurality of laying fingers (26) which is guided laterally and by means of first drives (32, 33) via push rods ( 30) towards the wiper The tape (12) is pivoted back and forth and by means of second drives (35, 36, 37, 38, 39) in such a way that the front ends of the depositing fingers (26) that can be moved back and forth and up and down each remove the cloth (22) to be removed. reach behind, press down against the stack of wipes (12) and hold it in the shaft (13) until a new movement cycle begins. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere, vorzugsweise zwei oder drei Ableger (27,27′) vorgesehen sind, deren Ablegefinger (26,26′) zumindest an ihren vorderen Enden parallel zueinander und in der gleichen Ebene angeordnet sind, und daß deren Antriebs­triebe derart ausgebildet sind, daß jeder einzelne Ableger (27,27′) nur jedes zweite bzw. jedes dritte abzulegende Tuch (22,22′) erfaßt, niederdrückt und festhält.2. Device according to claim 1, characterized in that several, preferably two or three offshoots (27,27 ') are provided, the laying fingers (26,26') at least on their front ends are arranged parallel to each other and in the same plane, and that their drive mechanisms are designed such that each individual offshoot (27, 27 ') only detects, depresses and depresses every second or third cloth (22, 22') to be removed holds on. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich­net, daß die Ablegerbalken (28,28′) und die beiderseitig an diesem mit ihren vorderen Enden angelenkten Schub­stangen (30,30′) mittels Lagerarmen (31,31′) abgestützt sind.3. Apparatus according to claim 1 or 2, characterized in that the cantilever beams (28,28 ') and the push rods (30,30') articulated on both sides thereof with their front ends are supported by means of bearing arms (31,31 '). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die hinteren Enden der Schubstangen (30) mit einem Antriebsgetriebe (32,33) gekuppelt sind.4. The device according to claim 3, characterized in that the rear ends of the push rods (30) with a drive gear (32,33) are coupled. 5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeich­net, daß beiderseits an den Ablegerbalken (28,28′) Hebel­arme (35,35′) befestigt sind, deren hintere Enden mit einem Antriebsgetriebe (38,39) gekuppelt sind.5. Apparatus according to claim 3 or 4, characterized in that lever arms (35, 35 ') are attached on both sides to the cantilever beam (28, 28'), the rear ends of which are coupled to a drive gear (38, 39). 6. Vorrichtung nach Anspruch 4 und/oder 5, daudrch gekenn­zeichnet, daß die Antriebsgetriebe aus Kurbeltrieben (32,33 bzw. 38,39) bestehen.6. The device according to claim 4 and / or 5, characterized in that the drive gear consists of crank drives (32,33 and 38,39). 7. Vorrichtung nach Anspruch 4 und/oder 5, dadurch gekenn­zeichnet, daß die Antriebsgetriebe aus Hebeltrieben be­stehen.7. The device according to claim 4 and / or 5, characterized in that the drive gear consist of lever drives.
EP90109237A 1989-08-02 1990-05-16 Device for building up stacks of cloth or similar products of fibre materials Expired - Lifetime EP0411257B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3925623A DE3925623A1 (en) 1989-08-02 1989-08-02 DEVICE FOR FORMING STACKS OF TOWELS OD. DGL. FIBER FABRICS
DE3925623 1989-08-02

Publications (2)

Publication Number Publication Date
EP0411257A1 true EP0411257A1 (en) 1991-02-06
EP0411257B1 EP0411257B1 (en) 1994-08-03

Family

ID=6386386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109237A Expired - Lifetime EP0411257B1 (en) 1989-08-02 1990-05-16 Device for building up stacks of cloth or similar products of fibre materials

Country Status (4)

Country Link
US (1) US5094437A (en)
EP (1) EP0411257B1 (en)
DE (2) DE3925623A1 (en)
ES (1) ES2062164T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4419989C2 (en) * 1994-06-08 1997-10-02 Winkler Duennebier Kg Masch Method and device for stacking folded sheets
US5899447A (en) * 1997-09-02 1999-05-04 The Procter & Gamble Company Apparatus for stacking pop-up towels
DE20016858U1 (en) * 2000-09-29 2001-01-04 Imeco Einwegprodukte Gmbh & Co Usage cloth supply and device for producing a use cloth stock
US11230453B2 (en) * 2003-02-18 2022-01-25 Körber Tissue Fold S.R.L. Roller for conveying a web or sheet of paper in paper converting machines and conveying method thus obtained
US20050079310A1 (en) * 2003-10-09 2005-04-14 Germain Patrick C. St. Folded roll product and method and apparatus for making and using the same
CN103332525B (en) 2013-07-02 2015-07-08 中顺洁柔纸业股份有限公司 Paper handkerchief folding machining device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163413A (en) * 1962-03-28 1964-12-29 Kimberly Clark Co Cam controlled folding means for papermaking machine
DE3502176A1 (en) * 1985-01-23 1986-07-24 Bielomatik Leuze Gmbh + Co, 7442 Neuffen DEVICE FOR FOLDING MATERIAL SHEETS
EP0236815A2 (en) * 1986-02-27 1987-09-16 Paper Converting Machine Company Apparatus and method for separation and delivery of continuous forms

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE54215C (en) * societe Anonyme francaise des Bascules Aütomatiques in Paris, Nr. 23 Boulevard de Strasbourg; Vertreter : wirth & co. in Frankfurt a. M Paper folding machine
DE186734C (en) *
FR377140A (en) * 1907-04-25 1907-08-29 Johann Heinrich Spoerl Machine for cutting into sheets of fixed length of paper, etc. brought in two or more continuous strips, to fold these sheets into each other and stack them
US1242262A (en) * 1916-08-19 1917-10-09 Louis A Straubel Machine for cutting and interfolding sheets of paper and the like.
DE401759C (en) * 1922-07-02 1924-09-09 Louis Albert Straubel Machine for zigzag folding and nesting of sheets of paper
US1516779A (en) * 1922-09-26 1924-11-25 Joseph L Hoslett Paper-interfolding machine
US1625566A (en) * 1926-12-03 1927-04-19 Us Paper Mills Inc Folding machine
US1804847A (en) * 1930-01-20 1931-05-12 Louis A Straubel Paper interfolding machine
US2116782A (en) * 1933-02-02 1938-05-10 Int Cellucotton Products Interfolding machine
US2280092A (en) * 1939-09-15 1942-04-21 Kirch Trumbull Corp Machine for and method of forming folded toilet seat covers
US2449663A (en) * 1946-09-28 1948-09-21 Marcalus Nicholas Interfolding
US2631846A (en) * 1947-04-05 1953-03-17 Int Cellucotton Products Delivery mechanism for tissue interfolding apparatus
US2626145A (en) * 1947-04-05 1953-01-20 Int Cellucotton Products Tissure interfolding method and apparatus
US2761676A (en) * 1952-09-11 1956-09-04 Kimberly Clark Co Sheet inter-folding and associating machine
US2761506A (en) * 1954-01-04 1956-09-04 Kimberly Clark Co Jaw for grasping sheet material therebetween and moving same to a new position
US2761677A (en) * 1954-01-04 1956-09-04 Kimberly Clark Co Method and apparatus for separating tissue packs
GB820072A (en) * 1957-05-13 1959-09-16 Jeyes Sanitary Compounds Compa Improvements in or relating to apparatus for folding paper and like material
US3044766A (en) * 1960-12-20 1962-07-17 Kimberly Clark Co Papermaking machine
US3229974A (en) * 1963-11-13 1966-01-18 Kimberly Clark Co Paper folding machine
US4070014A (en) * 1975-07-28 1978-01-24 Kawanoe Zoki Kabushiki Kaisha Web folding apparatus
JPS5589163A (en) * 1978-12-27 1980-07-05 Junkichi Yamaji Automatic cutting and folding machine for cleaner paper
US4494741A (en) * 1981-03-20 1985-01-22 John M. Rudolf Tissue cutting and interfolding apparatus for Z webs
FR2517656B1 (en) * 1981-12-03 1985-11-15 Lerond Andre INSTALLATION FOR MAKING ENAMELLED SHEETS FROM MATERIALS IN ROLLS
US4721295A (en) * 1986-08-12 1988-01-26 Kimberly-Clark Corporation Apparatus and process for separating stacks of sheets into bundles
US4770402A (en) * 1987-04-17 1988-09-13 C. G. Bretting Manufacturing Company Clip separator for interfolded sheets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163413A (en) * 1962-03-28 1964-12-29 Kimberly Clark Co Cam controlled folding means for papermaking machine
DE3502176A1 (en) * 1985-01-23 1986-07-24 Bielomatik Leuze Gmbh + Co, 7442 Neuffen DEVICE FOR FOLDING MATERIAL SHEETS
EP0236815A2 (en) * 1986-02-27 1987-09-16 Paper Converting Machine Company Apparatus and method for separation and delivery of continuous forms

Also Published As

Publication number Publication date
DE59006674D1 (en) 1994-09-08
EP0411257B1 (en) 1994-08-03
DE3925623A1 (en) 1991-02-07
ES2062164T3 (en) 1994-12-16
US5094437A (en) 1992-03-10

Similar Documents

Publication Publication Date Title
EP0189090B1 (en) Folding device of webs
DE2443106C2 (en) Stacking device for forming a stack of sheet piles arranged offset from one another
EP0686593A2 (en) Method and apparatus for stacking
EP0243799B1 (en) Device for folding webs
DE2158907C3 (en) Method and device for breaking out pre-cut pieces of material from sheet-like material webs
CH625481A5 (en)
EP0411257B1 (en) Device for building up stacks of cloth or similar products of fibre materials
DE1902794A1 (en) Method and device for loading cardboard processing machines
DE2125711A1 (en) Method and device for aligning strand webs
DE2350580A1 (en) CHANGING DEVICE FOR LAYERS ON PACKING MACHINES
EP0015311B1 (en) Device for folding articles
DE2808948A1 (en) DEVICE FOR LAYING UP LAYERS OF PAPER SHEETS
CH458408A (en) Device for opening a multi-leaf paper product at a point predetermined by reducing friction and for inserting an insert into the opened product
DE3700930C2 (en)
DE2140109A1 (en) Method and device for packaging folded web sections
DE2640478C3 (en) Device for collecting film sections
DE2547298C3 (en) Method for building a stack of predetermined length and device for carrying out the method
DE2304331A1 (en) FEEDING SYSTEM
DE4406868A1 (en) Method and device for forming stacks from individual slices of a food product
DE2424186C3 (en) Device for separating conical nested containers with carrying handles
EP0457720B1 (en) Feeding device for a machine for assembling veneer sheets to form a continuous veneer strip
CH630041A5 (en) Device for forming paper sheet stacks from partial stacks
AT362403B (en) FEEDING DEVICE FOR SHEETS OD. DGL.
DE217056C (en)
CH680208A5 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19901227

17Q First examination report despatched

Effective date: 19930226

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 59006674

Country of ref document: DE

Date of ref document: 19940908

ITF It: translation for a ep patent filed

Owner name: AVV. ANTONIO PETRUZZELLI

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941024

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2062164

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980429

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980430

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19980514

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990517

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040519

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051201