EP0266575A1 - Method and device for the breaking of partly cut and the subsequent stacking of flat objects, preferably double bags, made from plastic - Google Patents

Method and device for the breaking of partly cut and the subsequent stacking of flat objects, preferably double bags, made from plastic Download PDF

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Publication number
EP0266575A1
EP0266575A1 EP87114651A EP87114651A EP0266575A1 EP 0266575 A1 EP0266575 A1 EP 0266575A1 EP 87114651 A EP87114651 A EP 87114651A EP 87114651 A EP87114651 A EP 87114651A EP 0266575 A1 EP0266575 A1 EP 0266575A1
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EP
European Patent Office
Prior art keywords
stacking
tear
winding
web
arms
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
EP87114651A
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German (de)
French (fr)
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EP0266575B1 (en
Inventor
Klaus Ullmann
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.)
Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP0266575A1 publication Critical patent/EP0266575A1/en
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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
    • B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles
    • B31B70/984—Stacking bags on wicket pins
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/65—Other elements in face contact with handled material rotating around an axis parallel to face of material and perpendicular to transport direction, e.g. star wheel
    • B65H2404/655—Means for holding material on element
    • B65H2404/6551—Suction means
    • 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
    • B65H2701/12—Surface aspects
    • B65H2701/121—Perforations
    • B65H2701/1212—Perforations where perforations serve for handling
    • 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
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a method for severing and subsequent stacking of web sections provided with positioning holes in their central region, preferably double bags welded off from a plastic tubular or semi-tubular web with opening edges lying in the region of their center line, according to the preamble of patent claim 1, and a device for carrying them out this procedure.
  • the double bags welded from a film tube by transverse welding separating seams are placed on stacking plates carried by endless chains, which have a series of stacking pins on both sides of their longitudinal center line for receiving the bags.
  • a heated knife that can be raised and lowered is provided the stack located between the rows of stacking pins, the stacking plate forming the abutment for the separating knife. Since the stacking plates also form the abutments for the heated knives, these have to be made relatively large and heavy.
  • the known device is therefore relatively expensive because the endless chains must be provided with stacking plates at a distance from the stacks transported by them, which meet the requirements as abutment plates for the cutting knife.
  • the positioning holes are located in a central strip which is laterally delimited by perforation lines and through which the later cut separating the stacks is passed in the center.
  • the object of the invention is to propose a method of the type specified at the outset according to which stacks which are separate from one another can be produced in a simpler manner and with simpler means from the centrally separated web sections or double bags.
  • this object is achieved in a method of the generic type by the characterizing features of patent claim 1.
  • the separation of the individual web sections or double bags in the area of their longitudinal center line is already carried out during the transport by the transfer device or the winder to the stacking station, so that web sections already separated in the center or individual bags formed by separating the double bags are stacked predetermined number of pieces are stacked.
  • the process according to the invention can be done much more easily and with less Carry out less effort because there is no need for a separate separating device which separates the stacks formed, with a correspondingly stable stack conveyor which forms the abutment for the separating knife which separates the needled stacks.
  • a pull rod or the like is used. provided that cuts through the individual web sections or double bags and means only a small investment.
  • a device for carrying out the method according to the invention with a so-called wicketer is the subject of patent claim 2.
  • the tear wire or the like attached to at least one cross-member fixed to the frame provided outside the enveloping cylinder of the winding arms.
  • this can be slidably fastened with clamping pieces on cross members parallel to the axis of rotation.
  • the tear wire or the like is preferably located. in the conveying direction behind the axis of rotation of the winding and above the feed plane of the web sections or the web and is inclined at an angle of 30 degrees to 60 degrees to the feed plane against the conveying direction, so that the tear-off perforation line to be severed progressively or the like over the tear wire. is led and severed.
  • the tear wire can be curved in an arc.
  • a shaft 2 which is provided with a drive (not shown) and on which a hub 3 is fastened, which carries star-shaped so-called winding arms 4.
  • These winding arms 4 are provided in a known manner with gripping devices or suction cups, to which suction air is fed through suction lines and a rotary leadthrough for sucking in web sections.
  • the winding arms consist of outer arms 4 and inner, a gap between delimiting arms 4 ⁇ .
  • Each row of the winding arms 4, 4 ⁇ fastened in a star shape on the hub is located in a plane intersecting the axis of rotation of the winding and containing the axis of rotation.
  • stacking conveyors 5, 6 are arranged between the winding arms 4, 4 ⁇ .
  • These stacking conveyors consist of endless traction means 9 running over deflection rollers 7 and guide supports 8, on each of which pairs of stacking pins 10 are fastened at a distance from the stack to be formed.
  • Sleeves 11 with end flanges are attached to the stacking pins and hold the stack together after removal from the pins 10 and are closed by rimmed pipe pieces which are pressed into the sleeves.
  • the stacking belts 5, 6 are arranged between the winding arms 4, 4 ⁇ immediately adjacent to the inner winding arms 4 ⁇ .
  • a cross-welding separating device 14 is arranged in the machine frame, which welds off web sections or double bags from the tubular or semi-tubular web coming from a bag or processing machine, which are then taken over and stacked by the winding arms.
  • a short conveyor 17, 18 formed from endless belts is provided, which, as it were, forms a storage table for the front web end which is advanced between the open cross-welding separation station 14, so that the welded section can be taken over by the winding arms and can be needled after copying onto the needles 10 or sleeves 11.
  • the web 16 is provided with a central longitudinal tear-off perforation line. The welded-off web sections are enforced when they are taken along by the Winder arms and the overhead striking the stacking pins 10, the tear wire 15, so that the sections are severed along their central tear perforation line.
  • the web 16 is provided on both sides of the central tear-off perforation line with stack holes, the distance between which corresponds to the distance between the stacking pins 11.
  • the centrally separated web sections are therefore needled onto the stacking pins 10 or sleeves 11 in their inner edge regions, which can form the opening sides of bags, for example.
  • the stacking belts 5, 6 are located close to the inner winding arms 4,, the stacked bags hang out laterally over the stacking conveyor 5, 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

Von einer Kunststoffschlauchbahn (16) abgeschweißte Doppelbeutel mit im Bereich von deren Mittellinie liegenden Öffnungsrändern werden zum Zwecke ihres Stapelns von den Transportarmen (4) eines sogenannten Wicketers übernommen und in einer Stapelstation auf einem Stapelförderer (5, 6) mit aufragenden Stapelstiften (10) abgelegt. Nach Bilden eines Stapels wird der Stapelförderer intermittierend weitergeschaltet. Um in einfacher Weise Beutelstapel bilden zu können, die aus mittig getrennten Doppelbeuteln bestehen, weisen die Bahnabschnitte oder die Schlauchbahn im Bereich ihrer Längsmittellinie eine Abreißperforationslinie auf. Diese Abreißperforationslinie wird während des Transports auf den Wicketerarmen vor dem Aufnadeln auf die Stapelstifte durch Ziehen oder Schlagen über eine Trennkante, einen Trenndraht (15) o.dgl. durchtrennt.Double bags welded from a plastic tubular web (16) with opening edges lying in the area of their center line are taken over by the transport arms (4) of a so-called wicketer for stacking and placed in a stacking station on a stacking conveyor (5, 6) with upstanding stacking pins (10) . After forming a stack, the stack conveyor is switched on intermittently. In order to be able to form stacks of bags which consist of centrally separated double bags in a simple manner, the web sections or the tubular web have a tear-off perforation line in the region of their longitudinal center line. This tear-off perforation line is during transport on the winding arms before needling onto the stacking pins by pulling or hitting over a separating edge, a separating wire (15) or the like. severed.

Description

Die Erfindung betrifft ein Verfahren zum Durchtrennen und anschließenden Stapeln von in ihrem mittleren Bereich mit Positionierlöchern versehenen Bahnabschnitten, vorzugsweise von von einer Kunststoffschlauch- oder Halbschlauchbahn abgeschweißten Doppelbeuteln mit im Bereich von deren Mittellinie liegenden Öffnungsrändern, nach dem Oberbegriff des Patentanspruchs 1 sowie eine Vorrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for severing and subsequent stacking of web sections provided with positioning holes in their central region, preferably double bags welded off from a plastic tubular or semi-tubular web with opening edges lying in the region of their center line, according to the preamble of patent claim 1, and a device for carrying them out this procedure.

Bei einem aus der DE-OS 31 38 221 bekannten Verfahren dieser Art werden die von einem Folienschlauch durch Querschweißtrennähte abgeschweißten Doppelbeutel auf von endlosen Ketten getragenen Stapelplatten abgelegt, die zur Aufnahme der Beutel beidseits ihrer Längsmittellinie eine Reihe von Stapelstiften aufweisen. Zur Trennung der Beutelstapel ist ein beheiztes heb- und absenkbares Messer vorgesehen, das die in der Trennstation befindlichen Stapel zwischen den Reihen der Stapelstifte durchtrennt, wobei die Stapelplatte das Widerlager für die Trennmesser bildet. Da die Stapelplatten zugleich auch die Widerlager für die beheizten Messer bilden, müssen diese relativ groß und schwer ausgebildet werden. Die bekannte Vorrichtung ist daher verhältnismäßig aufwendig, weil die endlosen Ketten im Abstand der von diesen transportierten Stapel mit Stapelplatten versehen werden müssen, die den Anforderungen als Widerlagerplatten für das Schneidmesser genügen. Bei dem anhand der Fig.5 der DE-OS 31 38 221 beschriebenen Verfahren befinden sich die Positionierlöcher in einem zentralen Streifen, der seitlich von Perforationslinien begrenzt ist und durch den mittig der spätere die Stapel trennende Schnitt hindurchgeführt wird.In a method of this type known from DE-OS 31 38 221, the double bags welded from a film tube by transverse welding separating seams are placed on stacking plates carried by endless chains, which have a series of stacking pins on both sides of their longitudinal center line for receiving the bags. To separate the stack of bags, a heated knife that can be raised and lowered is provided the stack located between the rows of stacking pins, the stacking plate forming the abutment for the separating knife. Since the stacking plates also form the abutments for the heated knives, these have to be made relatively large and heavy. The known device is therefore relatively expensive because the endless chains must be provided with stacking plates at a distance from the stacks transported by them, which meet the requirements as abutment plates for the cutting knife. In the method described with reference to FIG. 5 of DE-OS 31 38 221, the positioning holes are located in a central strip which is laterally delimited by perforation lines and through which the later cut separating the stacks is passed in the center.

Aufgabe der Erfindung ist es, ein Verfahren der eingangs angegebenen Art vorzuschlagen, nach dem sich in einfacherer Weise und mit einfacheren Mitteln aus den mittig getrennten Bahnabschnitten oder Doppelbeuteln voneinander getrennte Stapel herstellen lassen.The object of the invention is to propose a method of the type specified at the outset according to which stacks which are separate from one another can be produced in a simpler manner and with simpler means from the centrally separated web sections or double bags.

Erfindungsgemäß wird diese Aufgabe bei einem Verfahren der gattungsgemäßen Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Nach dem erfindungsgemäßen Verfahren wird die Trennung der einzelnen Bahnabschnitte oder Doppelbeutel im Bereich ihrer Längsmittellinie bereits während des Transports durch die Übergabeeinrichtung oder den Wicketer zu der Stapelstation vorgenommen, so daß auf den Stapelstiften bereits mittig getrennte Bahnabschnitte oder durch Trennung der Doppelbeutel gebildete einzelne Beutel zu Stapeln vorbestimmter Stückzahl gestapelt werden. Das erfindungsgemäße Verfahren läßt sich sehr viel einfacher und mit gerin gerem Aufwand ausführen, weil auf eine eigene, die gebildeten Stapel trennende Trenneinrichtung mit einem entsprechend stabilen Stapelförderer, der das Widerlager für das die aufgenadelten Stapel durchtrennende Trennmesser bildet, verzichtet werden kann. Statt einer besonderen, die gestapelten Bahnabschnitte oder Doppelbeutel in Einzelstapel trennenden Einrichtung ist lediglich eine Reißstange o.dgl. vorgesehen, die die einzelnen Bahnabschnitte oder Doppelbeutel durchtrennt und nur einen geringen Investitionsaufwand bedeutet.According to the invention, this object is achieved in a method of the generic type by the characterizing features of patent claim 1. According to the method of the invention, the separation of the individual web sections or double bags in the area of their longitudinal center line is already carried out during the transport by the transfer device or the winder to the stacking station, so that web sections already separated in the center or individual bags formed by separating the double bags are stacked predetermined number of pieces are stacked. The process according to the invention can be done much more easily and with less Carry out less effort because there is no need for a separate separating device which separates the stacks formed, with a correspondingly stable stack conveyor which forms the abutment for the separating knife which separates the needled stacks. Instead of a special device which separates the stacked web sections or double bags in a single stack, only a pull rod or the like is used. provided that cuts through the individual web sections or double bags and means only a small investment.

Aus der DE-OS 22 44 495 sind Stapel aus Doppelbeuteln bekannt, die nur durch einen mittlere Perforationslinie miteinander verbunden und im Bereich dieser Perforationslinien durch Lochschweißungen miteinander verblockt sind. Die Doppelbeutel werden aber nicht vor ihrer Stapelung voneinander getrennt, sondern erst beim Abreißen von dem Doppelbeutelstapel.From DE-OS 22 44 495 stacks of double bags are known, which are connected to each other only by a central perforation line and are blocked together by hole welds in the area of these perforation lines. The double bags are not separated from each other before they are stacked, but only when they are torn off the double bag stack.

Aus der DE-OS 30 49 142 ist ein Verfahren zur Herstellung von aus jeweils durch Perforationslinien miteinander verbundenen Tüten bekannt, die ausgehend von einer doppellagigen Materialbahn, in der die Tüten durch Perforationslinien zusammenhängen, hergestellt und jeweils paarweise nach ihrer Hers tellung von dieser Materialbahn abgerissen werden. Zum Abreißen und Stapeln der noch paarweise zusammenhängenden Tüten von der Materialbahn sind das abzureißende Tütenpaar seitlich erfassende Greifer vorgesehen, die an den Enden von speichenförmigen Armen befestigt sind, die paarweise an drehbar gelagerten und mit einem Antrieb versehenen Naben angeordnet sind. Bei dieser bekannten Vorrichtung erfolgt das Abreißen von paarweise zusammenhängenden Beuteln durch an rotierenden Armen vorgesehene Greifer, wobei aber die paarweise zusammenhängen den Beutel während ihres Transports von der Materialbahn auf den Stapel nicht nochmals getrennt werden.From DE-OS 30 49 142 a method for the production of bags each connected by perforation lines is known, which is based on a double-layered material web, in which the bags are connected by perforation lines, and each is torn in pairs according to their manufacture from this material web will. For tearing off and stacking the bags, which are still connected in pairs, from the material web, the pair of bags to be torn off are provided with grippers which are attached laterally and are attached to the ends of spoke-shaped arms which are arranged in pairs on hubs which are rotatably mounted and provided with a drive. In this known device, torn-off bags are torn off by grippers provided on rotating arms, but are tied in pairs the bags are not separated again during their transport from the material web to the stack.

Eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens mit einem sogenannten Wicketer ist Gegenstand des Patentanspruchs 2.A device for carrying out the method according to the invention with a so-called wicketer is the subject of patent claim 2.

Zweckmäßigerweise ist der Reißdraht o.dgl. an mindestens einer außerhalb des Hüllzylinders der Wicketerarme vorgesehenen gestellfesten Traverse befestigt. Zur Einstellung des Reißdrahts o.dgl. kann dieser mit Klemmstücken verschiebbar auf zur Wicketerdrehachse parallelen Traversen befestigt sein. Zweckmäßigerweise befindet sich je eine Traverse oberhalb und unterhalb der Wicketers, so daß der Reißdraht o.dgl. zwischen diesen gehaltert ist.Advantageously, the tear wire or the like. attached to at least one cross-member fixed to the frame provided outside the enveloping cylinder of the winding arms. For setting the tear wire or the like. this can be slidably fastened with clamping pieces on cross members parallel to the axis of rotation. Appropriately, there is a traverse above and below the wicketers, so that the tear wire or the like. is held between these.

Vorzugsweise befindet sich der Reißdraht o.dgl. in Förderrichtung hinter der Wicketerdrehachse und oberhalb der Zuführungsebene der Bahnabschnitte oder der Bahn und ist um einen Winkel von 30 Grad bis 60 Grad zur Zuführungsebene entgegen der Förderrichtung geneigt, so daß die zu durchtrennende Abreißperforationslinie fortschreitend über den Reißdraht o.dgl. geführt und durchtrennt wird.The tear wire or the like is preferably located. in the conveying direction behind the axis of rotation of the winding and above the feed plane of the web sections or the web and is inclined at an angle of 30 degrees to 60 degrees to the feed plane against the conveying direction, so that the tear-off perforation line to be severed progressively or the like over the tear wire. is led and severed.

Um ein gleichsam fortschreitendes Aufreißen der Abreißperforationslinie mit möglichst geringer Beanspruchung der Werkstücke zu erreichen, kann der Reißdraht bogenförmig gekrümmt sein.In order to achieve a progressive tearing open of the tear-off perforation line with the least possible stress on the workpieces, the tear wire can be curved in an arc.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 eine Seitenansicht der Stapelvorrichtung mit Wicketer und einer Bahnabschnitte oder Doppelbeutel abschweißenden Querschweißtrenneinrichtung und
  • Fig. 2 eine Draufsicht auf die Vorrichtung nach Fig. 1.
An embodiment of the invention is explained below with reference to the drawing. In this shows
  • Fig. 1 is a side view of the stacking device with Wicketer and a cross-section welding device welding off a web section or double bag and
  • FIG. 2 shows a top view of the device according to FIG. 1.

In Seitenteilen des durch eine strichpunktierte Linie angedeuteten Maschinengestells 1 ist eine mit einem nicht dargestellten Antrieb versehene Welle 2 gelagert, auf der eine Nabe 3 befestigt ist, die sternförmig sogenannte Wicketerarme 4 trägt. Diese Wicketerarme 4 sind in bekannter Weise mit Greifeinrichtungen oder Saugnäpfen versehen, denen durch Saugleitungen und eine Drehdurchführung Saugluft zum Ansaugen von Bahnabschnitten zugeführt wird. Wie aus Fig. 2 ersichtlich ist, bestehen die Wicketerarme aus äußeren Armen 4 und inneren, einen Spalt zwi- schen sich begrenzenden Armen 4ʹ. Jede Reihe der auf der Nabe sternförmig befestigten Wicketerarme 4, 4ʹ befindet sich in einer die Drehachse des Wicketers schneidenden und die Drehachse enthaltenden Ebene.In the side parts of the machine frame 1, indicated by a dash-dotted line, there is mounted a shaft 2, which is provided with a drive (not shown) and on which a hub 3 is fastened, which carries star-shaped so-called winding arms 4. These winding arms 4 are provided in a known manner with gripping devices or suction cups, to which suction air is fed through suction lines and a rotary leadthrough for sucking in web sections. As can be seen from FIG. 2, the winding arms consist of outer arms 4 and inner, a gap between delimiting arms 4ʹ. Each row of the winding arms 4, 4ʹ fastened in a star shape on the hub is located in a plane intersecting the axis of rotation of the winding and containing the axis of rotation.

Auf der rechten Seite des Wicketers sind jeweils zwischen die Wicketerarme 4, 4ʹ greifende Stapelförderer 5, 6 angeordnet. Diese Stapelförderer bestehen aus über Umlenkrollen 7 und Führungsträger 8 laufenden endlosen Zugmitteln 9, auf denen im Abstand der zu bildenden Stapel jeweils Paare von Stapelstiften 10 befestigt sind. Auf die Stapelstifte sind mit endseitigen Flanschen versehene Hülsen 11 aufgesteckt, die die Stapel nach ihrer Abnahme von den Stiften 10 zusammenhalten und durch mit einem Rand versehene Rohrstücke, die in die Hülsen eingedrückt werden, geschlossen werden.On the right side of the winding device, stacking conveyors 5, 6 are arranged between the winding arms 4, 4ʹ. These stacking conveyors consist of endless traction means 9 running over deflection rollers 7 and guide supports 8, on each of which pairs of stacking pins 10 are fastened at a distance from the stack to be formed. Sleeves 11 with end flanges are attached to the stacking pins and hold the stack together after removal from the pins 10 and are closed by rimmed pipe pieces which are pressed into the sleeves.

Die Stapelbänder 5, 6 sind zwischen den Wicketerarmen 4, 4ʹ unmittelbar angrenzend an die inneren Wicketerarme 4ʹ angeordnet.The stacking belts 5, 6 are arranged between the winding arms 4, 4ʹ immediately adjacent to the inner winding arms 4ʹ.

In den Seitenteilen des Gestells sind aus Rohren bestehende Traversen 12, 12ʹ befestigt, die parallel zu der Wicketerwelle 2 verlaufen. Auf diesen Traversen 12,12ʹ sind Klemmstücke 13, 13ʹ befestigt, in denen die Enden einer Reißstange 15 befestigt sind. Die Re ißstange 15 befindet sich in dem ringförmigen Spalt zwischen den inneren Wicketerarmen 4ʹ.In the side parts of the frame, existing crossbeams 12, 12ʹ are attached, which run parallel to the winding shaft 2. Clamping pieces 13, 13 ', in which the ends of a pull rod 15 are fastened, are fastened on these cross members 12, 12'. The rice rod 15 is in the annular gap between the inner winding arms 4eter.

Auf der linken Seite ist unmittelbar vor dem Wicketerrad eine Querschweißtrennvorrichtung 14 im Maschinengestell angeordnet, die von der von einer Beutel- oder Bearbeitungsmaschine kommenden Schlauch- oder Halbschlauchbahn Bahnabschnitte oder Doppelbeutel abschweißt, die anschließend von den Wicketerarmen übernommen und gestapelt werden.On the left side, in front of the winding wheel, a cross-welding separating device 14 is arranged in the machine frame, which welds off web sections or double bags from the tubular or semi-tubular web coming from a bag or processing machine, which are then taken over and stacked by the winding arms.

Zwischen der Querschweiß-Trennstation 14 und der Wicketerwelle 2 einerseits und zwischen den Wicketerarmen 4, 4ʹ andererseits ist jeweils ein kurzer aus endlosen Riemen gebildeter Förderer 17, 18 vorgesehen, der gleichsam einen Ablagetisch für das zwischen die geöffneten der Querschweißtrennstation 14 vorgeschobene vordere Bahnende bildet, so daß der abgeschweißte Abschnitt von den Wicketerarmen übernommen und nach Wenden über Kopie auf die Nadeln 10 bzw. Hülsen 11 aufgenadelt werden kann. Die Bahn 16 ist mit einer mittigen längsverlaufenden Abreißperforationslinie versehen. Die abgeschweißten Bahnabschnitte durchsetzen bei ihrer Mitnahme durch die Wicketerarme und dem Überkopfaufschlagen auf die Stapelstifte 10 den Reißdraht 15, so daß die Abschnitte längs ihrer mittleren Abreißperforationslinie durchtrennt werden. Weiterhin ist die Bahn 16 beidseits der mittleren Abreißperforationslinie mit Stapellöchern versehen, deren Abstand dem Abstand der Stapelstifte 11 entspricht. Die mittig getrennten Bahnabschnitte werden daher in ihren inne- ren Randbereichen, die beispielsweise die Öffnungsseiten von Beuteln bilden können, auf die Stapelstifte 10 bzw. Hülsen 11 aufgenadelt.Between the cross-welding separating station 14 and the winding shaft 2 on the one hand and between the winding arms 4, 4ʹ on the other hand, a short conveyor 17, 18 formed from endless belts is provided, which, as it were, forms a storage table for the front web end which is advanced between the open cross-welding separation station 14, so that the welded section can be taken over by the winding arms and can be needled after copying onto the needles 10 or sleeves 11. The web 16 is provided with a central longitudinal tear-off perforation line. The welded-off web sections are enforced when they are taken along by the Winder arms and the overhead striking the stacking pins 10, the tear wire 15, so that the sections are severed along their central tear perforation line. Furthermore, the web 16 is provided on both sides of the central tear-off perforation line with stack holes, the distance between which corresponds to the distance between the stacking pins 11. The centrally separated web sections are therefore needled onto the stacking pins 10 or sleeves 11 in their inner edge regions, which can form the opening sides of bags, for example.

Da sich die Stapelbänder 5, 6 nahe bei den inneren Wicketerarmen 4ʹ befinden, hängen die gestapelten Beutel nach außen hin seitlich über den Stapelförderer 5, 6 herab. Since the stacking belts 5, 6 are located close to the inner winding arms 4,, the stacked bags hang out laterally over the stacking conveyor 5, 6.

Claims (6)

1. Verfahren zum Durchtrennen und anschließenden Stapeln von in ihrem mittleren Bereich mit Positionierlöchern versehenen Bahnabschnitten, vorzugsweise von von einer Kunststoffschlauch- oder -halbschlauchbahn abgeschweißten Doppelbeuteln mit im Bereich von deren Mittellinie liegenden Öffnungsrändern,
die von einer Übergabeeinrichtung, vorzugsweise einem sogenannten Wicketer mit um eine horizontale Achse rotierenden, sternartig und paarweise angeordneten Transportarmen, in einer Stapelstaion auf einem aus endlosen, über Umlenkräder oder -rollen laufenden, intermittierend angetriebenen Zugmitteln bestehenden und mit aufragenden Stapelstiften versehenen Stapelförderer abgelegt werden,
wobei die durch Aufnadeln der Bahnabschnitte gebildeten Stapel duch Weiterschalten der Zugmittel intermittierend abgefördert werden,
wobei die Bahnabschnitte oder die Schlauch- oder Halbschlauchbahn auf oder im Bereich ihrer Längsmittellinie perforiert werden, dadurch gekennzeichnet, daß nur eine Abreißperforationslinie vorgesehen ist und daß die Abreißperforationslinie während des Transports auf der Übergabeeinrichtung bzw. den Wicketerarmen vor dem Aufnadeln auf die Stapelstifte durch Ziehen oder Schlagen über eine Trennkante, einen Trenndraht o.dgl. durchtrennt wird.1. Method for severing and subsequent stacking of web sections provided with positioning holes in their central region, preferably of double bags welded off from a plastic tubular or semi-tubular web with opening edges lying in the region of their central line,
are placed in a stacking station by a transfer device, preferably a so-called wicketer with rotating, star-like and paired transport arms rotating about a horizontal axis, on a stacking conveyor consisting of endless, intermittently driven traction means running over deflection wheels or rollers and provided with upstanding stacking pins,
the stacks formed by needling the web sections being conveyed away intermittently by advancing the traction means,
wherein the web sections or the tubular or semi-tubular web are perforated on or in the region of their longitudinal center line, characterized in that only one tear-off perforation line is provided and that the tear-off perforation line during transport on the transfer device or the winding arms before needling onto the stacking pins by pulling or Hitting over a separating edge, a separating wire or the like. is severed. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 mit einem sogenannten Wicketer, wobei der Wicketer in zur Wicketerdrehachse parallelen, sternförmig zueinander stehenden Ebenen jeweils mit vier Wicketerarmen (4,4ʹ) versehen ist, von denen die inneren (4ʹ) einen Spalt zwischen sich begrenzen, dadurch gekennzeichnet, daß im transportierenden Winkelbereich der Wicketerarme (4,4ʹ) in einer zur Wicketerdrehachse senkrechten Ebene in dem Spalt zwischen den inneren Wicketerarmen (4ʹ) ein Reißdraht (15), Reißblech oder eine Reißklinge angeordnet und am Gestell (1) gehaltert ist.2. Apparatus for carrying out the method according to claim 1 with a so-called wicketer, the wicketer being provided in planes which are parallel to the axis of rotation of the winding and in a star-shaped manner with four winding arms (4,4ʹ), of which the inner (4ʹ) a gap between them limit, characterized in that in the transporting angular range of the winding arms (4,4ʹ) in a plane perpendicular to the axis of rotation of the winding, a tear wire (15), tear plate or a tear blade is arranged in the gap between the inner winding arms (4ʹ) and held on the frame (1) is. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Reißdraht (15) o.dgl. an mindestens einer außerhalb des Hüllzylinders der Wicketerarme (4,4ʹ) vorgesehenen Traverse (12,12ʹ) befestigt ist.3. Apparatus according to claim 2, characterized in that the tear wire (15) or the like. is attached to at least one crossmember (12, 12) provided outside the enveloping cylinder of the winding arms (4, 4ʹ). 4. Vorricht ung nach Anspruch 3, dadurch gekennzeichnet, daß der Reißdraht (15) o.dgl. mit Klemmstücken (13,13ʹ) verschieblich auf zur Wicketerdrehachse parallelen Traversen (12,12ʹ) befestigt ist.4. Vorricht ung according to claim 3, characterized in that the tear wire (15) or the like. with clamps (13, 13ʹ) is slidably mounted on crossbars (12, 12ʹ) parallel to the axis of rotation. 5. Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß sich je eine Traverse (12,12ʹ) oberhalb und unterhalb des Wicketers befindet.5. Device according to one of claims 2 to 4, characterized in that there is a crossmember (12, 12ʹ) above and below the wicketer. 6. Vorrichtung nach einem der Ansprüche 2 - 5, dadurch gekennzeichnet, daß sich der Reißdraht (15) o.dgl. in Förderrichtung hinter der Wicketerdrehachse (2) und oberhalb der Zuführungsebene der Bahnabschnitte oder Bahn (16) befindet und um einen Winkel von 30 Grad bis 60 Grad zur Zuführungsebene entgegen der Förderrichtung geneigt ist.6. Device according to one of claims 2-5, characterized in that the tear wire (15) or the like. in the conveying direction behind the winding axis of rotation (2) and above the feed plane of the web sections or web (16) and is inclined at an angle of 30 degrees to 60 degrees to the feed plane against the conveying direction.
EP87114651A 1986-11-04 1987-10-07 Method and device for the breaking of partly cut and the subsequent stacking of flat objects, preferably double bags, made from plastic Expired - Lifetime EP0266575B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863637491 DE3637491A1 (en) 1986-11-04 1986-11-04 METHOD AND DEVICE FOR STACKING FLAT ITEMS, PREFERABLY DOUBLE BAGS, MADE OF PLASTIC FILM
DE3637491 1986-11-04

Publications (2)

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EP0266575A1 true EP0266575A1 (en) 1988-05-11
EP0266575B1 EP0266575B1 (en) 1990-02-28

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Application Number Title Priority Date Filing Date
EP87114651A Expired - Lifetime EP0266575B1 (en) 1986-11-04 1987-10-07 Method and device for the breaking of partly cut and the subsequent stacking of flat objects, preferably double bags, made from plastic

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US (1) US4878888A (en)
EP (1) EP0266575B1 (en)
DE (1) DE3637491A1 (en)
DK (1) DK571187A (en)
FI (1) FI874858A (en)
NO (1) NO874544L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834115C1 (en) * 1988-10-07 1990-05-03 Karl Heinz 7000 Stuttgart De Stiegler
DE3838563A1 (en) * 1988-11-14 1990-05-17 Windmoeller & Hoelscher DEVICE FOR STACKING FLAT OBJECTS
DE19932365C2 (en) * 1999-07-10 2003-10-16 Lemo Maschb Gmbh Device for collecting plastic bags in packs, in particular automatic bags
US6612563B1 (en) 2000-03-31 2003-09-02 Graphic Management Associates, Inc. Stacking and counting device for planar products
US6786003B2 (en) * 2002-07-03 2004-09-07 Scott R. Gilbert Multi-layer sleeve

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US3805683A (en) * 1972-08-28 1974-04-23 C Hook Timed vacuum delivery belts
US4529114A (en) * 1983-09-09 1985-07-16 Moore Business Forms, Inc. Form burster

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DE2244495A1 (en) * 1972-09-11 1974-03-21 Stiegler Maschf Felix Packaging stacks of plastic bags - by slot welding through projecting flaps while stacks are still on conveyor used for stacking
DE3049142A1 (en) * 1979-08-01 1982-07-15 Wilhelm 7180 Crailsheim Scherz Tear off station for paper blocks - uses grippers comprising fixed and swivelling gripper plates and cam follower links and cam guides
US4451249A (en) * 1980-09-26 1984-05-29 Debin Rene F Manufacture of thermoplastic bags
DE3505858A1 (en) * 1984-11-23 1986-06-05 Windmöller & Hölscher, 4540 Lengerich DEVICE FOR STACKING FLAT ITEMS, PREFERABLY BAGS OF PLASTIC FILM
US4699607A (en) * 1985-11-06 1987-10-13 Fmc Corporation Method and apparatus for producing bags

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Publication number Priority date Publication date Assignee Title
US3805683A (en) * 1972-08-28 1974-04-23 C Hook Timed vacuum delivery belts
US4529114A (en) * 1983-09-09 1985-07-16 Moore Business Forms, Inc. Form burster

Also Published As

Publication number Publication date
NO874544D0 (en) 1987-11-02
DE3637491A1 (en) 1988-05-19
US4878888A (en) 1989-11-07
EP0266575B1 (en) 1990-02-28
FI874858A0 (en) 1987-11-04
DK571187A (en) 1988-05-05
FI874858A (en) 1988-05-05
DK571187D0 (en) 1987-10-30
NO874544L (en) 1988-05-05
DE3637491C2 (en) 1988-10-27

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