EP0098276B1 - Method and device for manufacturing an automatic closure valve bag - Google Patents

Method and device for manufacturing an automatic closure valve bag Download PDF

Info

Publication number
EP0098276B1
EP0098276B1 EP83900188A EP83900188A EP0098276B1 EP 0098276 B1 EP0098276 B1 EP 0098276B1 EP 83900188 A EP83900188 A EP 83900188A EP 83900188 A EP83900188 A EP 83900188A EP 0098276 B1 EP0098276 B1 EP 0098276B1
Authority
EP
European Patent Office
Prior art keywords
valve
folding
glue
cylinder
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83900188A
Other languages
German (de)
French (fr)
Other versions
EP0098276A1 (en
Inventor
Masayoshi Yokomatsu
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co KG
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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to AT83900188T priority Critical patent/ATE29428T1/en
Publication of EP0098276A1 publication Critical patent/EP0098276A1/en
Application granted granted Critical
Publication of EP0098276B1 publication Critical patent/EP0098276B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/927—Reclosable
    • Y10S493/929—Reclosable with valve

Definitions

  • the invention relates to a device for producing a single-layer or multi-layer valve sack made of paper or film with a self-closing valve.
  • Paper valve sacks are widely used for packaging powdery or granular goods.
  • the spreadable or flowable material can be introduced via automatic filling systems, and the valve, which closes itself after filling due to the pressure effect of the filling material, makes an additional work step for closing the filled sack mostly superfluous, or additional sealing sheets applied are self-closing properties of the valve significantly relieved.
  • the cross-bottom valve bag is of great importance. While the sewn sack on the one hand offers the advantage of inexpensive manufacture, there is, however, the disadvantage that such a sack is not absolutely leakproof. On the other hand, the funnelêt valve sack has good tightness, but it is more expensive and requires more material to manufacture.
  • valve sheet is manufactured in an associated valve manufacturing unit in-line and in time with the sack machine, fed to the gluing point and pressed in a pressing station and thereby firmly adhered to the inner sack track.
  • the valve manufacturing unit is part of an overall system specially designed for the production of valve bags made of plastic film.
  • the invention has for its object to provide a device using conventional sack machines, as far as possible, with which such proposed side-gusset valve bags can be inexpensively manufactured with a valve inserted into the longitudinal seam of the bag hose.
  • a device according to the invention for producing the above-mentioned bags with a self-closing valve is characterized in claim 1.
  • the subclaims indicate advantageous configurations of the manufacturing device according to the invention.
  • the device according to the invention is characterized in that at the end of a transport device for an open web of the sack material, shortly before it is guided into a tube pulling area, a valve manufacturing unit is preferably arranged above the material web guide, in which valve valve made from paper roll and the open, pre-glued sack track positioned in defined areas.
  • the prefabricated paper valves are contacted with the pre-glued open sack track and after the valve has been applied, the sack track with valve passes through a pressure section with which the supplied valve sleeve is securely bonded.
  • a sack path 1 which can be referred to as an open sack path in a single-layer sack or represents the inner sack path in a multi-layer sack, is first deflected on a roller 4 and pre-glued in a glue station B in the area of the subsequent valve applications.
  • the glue station B essentially consists of a glue pan 5, a scoop roller 6 and an application roller 7 suitable for a format-based glue application Valve or a valve sleeve 24 applied and when passing through a pressure roller pair 18, the blind web 1 and the applied valve sleeve are pressed together for an intimate bonding.
  • a deflection roller 2 at the intermediate product discharge or at the transition to a sack manufacturing machine consequently reaches the open sack path with the valve applied.
  • a conveyor belt 17 runs around in the area of a pressing station 13, and a cylinder 13b, which at the same time ensures the application of the valve sleeve 24 to the open sack track 1, serves on the opposite side of a cylinder 13a as a deflecting roller for one or more conveyor belts 17th
  • FIG 3 shows the next step: the folding flap 16a still holds the valve sheet 24 'with the front flap 24a, and over the glue application roller 11 of the glue station 11 the area of the open valve sheet 24' is glued so that, as shown in FIG 4 shows the glue track 23 being applied to the open valve sheet 24 '.
  • the glue unit 11 is shown in FIGS. 3 and 4 solely with the glue application roller 11c. From Fig. 1, however, it appears that the glue unit 11 also has a glue box 11a and a scoop roller 11b.
  • FIG. 4 it can be seen that when the folding cylinder 10b is turned further, the folding flap 16a has now opened, while the folding flap 16b has now grasped the still open valve sheet 24 ', due to the inherent stiffness of the paper to erect a flap 24b comes, which in turn angled in the opposite direction carries the backward inclined tab 24a.
  • the valve sheet 24 ' which is still open, passes through the nip 31 between the folding cylinder 10b and a gripper drum 12, the tab 24b now leading is completely folded over, the tab 24a coming to rest on the glue track 23.
  • the valve which is still lying flat, but in principle already 9-shaped, is now fully folded.
  • the gripper drum 12 now grips with the gripper 25, the valve sheet 24 'on the folding drum 10b, and finally, as shown in FIG. 6, the finished valve sleeve 24 is transferred from the gripper drum 12 to the transfer cylinder 13b at the point of contact of the rollers 12 and 13b .
  • a gripper finger 25 (not shown in detail) must open at this transfer point; at the same time, the flat-lying valve sleeve 24 is easily grasped by a fine needle 20, which is attached to the transfer cylinder 13b, and the actual takeover of the finished folded valve sleeve 24 to the transfer cylinder 13b is provided by a suction cup 19, which operates with a vacuum pump, which is not shown in sections connected is.
  • the vacuum is switched off by the suction cup 19, so that, supported by the belt or tapes 17, the transfer of the valve sleeve 24 from the transfer cylinder 13b to the previously described, partially glued blind path with the gluing unit 5, 6, 7 1 can be done.
  • the upper folding cylinder 10a preferably has two folding knives (not shown in more detail) which, when the open valve sheet 8 passes through the nip 30 between the two folding cylinders 10a and 10b, ensure that the valve sheet 8 is gripped by the two folding flaps 16a and 16b in the lower folding cylinder 10b .
  • a clock control is to be provided in such a way that the folding jaws 16a and 16b are each opened before entering the nip 30 between the folding cylinders 10a and 10b, so that the folding blades of the upper folding cylinder 10a easily open into the gaps caused by the open folding jaws 16a, 16b immerse and thus press the paper into the open folding flaps 16a, 16b.
  • the open valve sheet 8 is already gripped with both folding tongs before the open valve sheet 8 passes the glue station 11.
  • the valve manufacturing unit can therefore also be equipped with two folding knife cylinders, so that the folding cylinder 10a has only one folding knife, with which the secure gripping of the valve sheet 8 by the folding flap 16a can be ensured.
  • the separated valve sheet 24 ' which is gripped in this way only with a pair of folding pliers, then only passes through the glue station 11 before the gripping of the valve sheet 24' is ensured by the folding pliers 16b with a second folding cylinder (not shown).
  • a second folding cylinder (not shown).
  • To securely erect the valve flap 24b it is then advantageous to open the front folding flap 16a immediately during or after the valve sheet 24 'is gripped by the folding flap 16b.
  • the gap 31 between the two cylinders 10b and 12 serves both for folding over the folding tab 24b and for gripping the valve, which has been completed by this folding over, by the gripper finger 25, which can also be designed as gripper pliers.
  • FIG. 7 once again illustrates the individual process steps for producing the 9-shaped valve in perspective single images.
  • Fig. 7a shows the still unfolded, but already separated from the valve sheet 8 valve sheet 24 ', as z. B. passes in the area of the train station 21 '.
  • 7b illustrates the valve sheet 24 'after the first folding in the folding flap 16a of the folding cylinder 10b, the front flap 24a being formed.
  • FIG. 7c shows the valve sheet 24 ′ which has been pre-folded once, with the front flap 24a after passing through the glue station 11, which has carried out the application of the glue track 23.
  • FIG. 7d finally shows the valve sheet 24 'after the second folding in the folding flap 16b, so that the valve sheet 24' with the large tab 24b and the small tab 24a can now be clearly seen.
  • the valve 24 finished in FIG. 7e is finally applied to the blind path 1 provided with the glue traces 26 according to FIG. 7f, and FIG 24 after passing through the pressure roller pairs 18.
  • a clock control can be provided for the valve manufacturing unit such that, for example, the further transport of the separated valve sheets 24 'by the train group 21' is synchronized with the changeable bag size.
  • the device according to the invention for the production of paper or film bags with a self-closing valve is characterized in particular by the fact that inexpensive self-closing valve bags for powdery or granular material can be produced in a largely fully automated process, different bag sizes being able to be taken into account.

Landscapes

  • Making Paper Articles (AREA)

Abstract

Device and method for manufacturing a valve bag with one or a plurality of layers, of paper or sheet, with an automatic closure valve, comprising first the sticking of an inner paper band (1) and a valve sleeve (24) of paper and having the desired size. The valve sleeve (24) is produced in line in an appropriate device (22, 8, 21, 9, 10, 11, 12, 13) arranged directly above a guiding and pressing station (13, 18) and conveyed, in synchronism with a bag manufacturing machine (1, 4, B, 3, 8, A, 2) to the pressing station (13, 18) to be adhered on the inner face of the paper web (1). Finally, the paper band (1) is conveyed and adhered with the outer layer or layers forming a multilayer bag.

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung eines ein- oder mehrlagigen Ventilsacks aus Papier oder Folie mit selbstschließendem Ventil, nach dem Oberbegriff des Patentanspruchs 1. Eine Vorrichtung dieser Art ist aus der Druckschrift FR-A-1 512942 bekannt.The invention relates to a device for producing a single-layer or multi-layer valve sack made of paper or film with a self-closing valve.

Papierventilsäcke finden zur Verpackung von pulverförmigem oder körnigem Gut breite Anwendung. Das streu- bzw. fließfähige Gut kann über automatische Füllanlagen eingebracht werden, und das Ventil, das sich nach dem Füllen durch Druckwirkung des Füllguts selbst verschließt, macht einen zusätzlichen Arbeitsgang zum Verschließen des gefüllten Sacks meist überflüssig oder zusätzlich aufgebrachte Verschlußblätter werden durch die selbstschließenden Eigenschaften des Ventils erheblich entlastet.Paper valve sacks are widely used for packaging powdery or granular goods. The spreadable or flowable material can be introduced via automatic filling systems, and the valve, which closes itself after filling due to the pressure effect of the filling material, makes an additional work step for closing the filled sack mostly superfluous, or additional sealing sheets applied are self-closing properties of the valve significantly relieved.

Neben dem vielfach eingesetzten genähten Ventilsack ist der Kreuzboden-Ventilsack von großer Bedeutung. Während der genähte Sack einerseits zwar den Vorteil einer preisgünstigen Herstellung bietet, zeigt sich jedoch der Nachteil, daß ein solcher Sack nicht absolut dicht ist. Andererseits weist der Kreuzboden-Ventilsack gute Dichtigkeit auf, dafür ist er jedoch teurer und materialaufwendiger in der Herstellung.In addition to the frequently used sewn valve bag, the cross-bottom valve bag is of great importance. While the sewn sack on the one hand offers the advantage of inexpensive manufacture, there is, however, the disadvantage that such a sack is not absolutely leakproof. On the other hand, the Kreuzboden valve sack has good tightness, but it is more expensive and requires more material to manufacture.

Bei der aus der oben erwähnten FR-A-1 512 942 bekannten Vorrichtung wird zunächst eine innere Sackbahn im Bereich eines einzuklebenden Ventilblatts formatmäßig beleimt. Das Ventilblatt wird in einem zugeordneten Ventilherstellaggregat in-Line und im Takt der Sackmaschine hergestellt, der Einklebestelle zugeführt und in einer Preßstation verpreßt und dabei mit der inneren Sackbahn festhaftend verbunden. Das Ventilherstellungsaggregat ist Bestandteil einer speziell für die Fertigung von Ventilsäcken aus Kunststofffolie bestimmten Gesamtanlage.In the device known from the above-mentioned FR-A-1 512 942, an inner blind path in the area of a valve sheet to be glued is first glued to the format. The valve sheet is manufactured in an associated valve manufacturing unit in-line and in time with the sack machine, fed to the gluing point and pressed in a pressing station and thereby firmly adhered to the inner sack track. The valve manufacturing unit is part of an overall system specially designed for the production of valve bags made of plastic film.

Mit der europäischen Patentanmeldung No. 82108232.8 wurde ein Seitenfalten-Ventilsack vorgeschlagen, bei dem das Ventil in der Nähe von einem der beiden Wickelböden des Sacks in die Längsnaht des Schlauchabschnitts eingebracht ist. Dieser Seitenfalten-Ventilsack ist in der Herstellung weniger aufwendig als der Kreuzboden-Ventilsack ; er ist letzterem gleichwohl in der Dichtigkeit noch überlegen.With European patent application No. 82108232.8 a side gusset valve sack has been proposed, in which the valve is introduced into the longitudinal seam of the tube section in the vicinity of one of the two winding bottoms of the sack. This gusseted valve bag is less expensive to manufacture than the cross-bottom valve bag; it is still superior to the latter in terms of tightness.

Der Erfindung liegt die Aufgabe zugrunde, möglichst unter Einsatz herkömmlicher Sackmaschinen eine Vorrichtung zu schaffen, mit der sich solche vorgeschlagenen Seitenfalten-Ventilsäcke mit in die Längsnaht des Sackschlauches eingesetztem Ventil preisgünstig herstellen lassen.The invention has for its object to provide a device using conventional sack machines, as far as possible, with which such proposed side-gusset valve bags can be inexpensively manufactured with a valve inserted into the longitudinal seam of the bag hose.

Eine erfindungsgemäße Vorrichtung zur Herstellung der genannten Säcke mit selbstschließendem Ventil ist im Patentanspruch 1 gekennzeichnet. Die Unteransprüche geben vorteilhafte Ausgestaltungen der erfindungsgemäßen Herstellungsvorrichtung an.A device according to the invention for producing the above-mentioned bags with a self-closing valve is characterized in claim 1. The subclaims indicate advantageous configurations of the manufacturing device according to the invention.

Die erfindungsgemäße Vorrichtung zeichnet sich dadurch aus, daß am Ende einer Transporteinrichtung für eine offene Bahn des Sackmaterials, kurz bevor diese in einen Schlauchziehbereich geführt wird, vorzugsweise oberhalb der Materialbahnführung ein Ventil-Herstellaggregat angeordnet ist, in welchem von einer Vorratsrolle aus Papierventile hergestellt und der offenen, in definierten Bereichen vorbeleimten Sackbahn positioniert zugeführt werden. Die vorgefertigten Papierventile werden mit der vorbeleimten offenen Sackbahn kontaktiert und nach dem Aufbringen des Ventils durchläuft die Sackbahn mit Ventil eine Anpreßstrecke, mit der eine sichere Verklebung der zugeführten Ventilmanschette erreicht wird.The device according to the invention is characterized in that at the end of a transport device for an open web of the sack material, shortly before it is guided into a tube pulling area, a valve manufacturing unit is preferably arranged above the material web guide, in which valve valve made from paper roll and the open, pre-glued sack track positioned in defined areas. The prefabricated paper valves are contacted with the pre-glued open sack track and after the valve has been applied, the sack track with valve passes through a pressure section with which the supplied valve sleeve is securely bonded.

Die Erfindung und vorteilhafte Einzelheiten werden nachfolgend unter Bezug auf die Zeichnung in beispielsweiser Ausführungsform näher erläutert. Es zeigen :

  • Figur 1 eine Prinzipdarstellung einer Transporteinrichtung für eine Sackbahn mit darüber angeordneter Einrichtung zur Herstellung einer Ventilmanschette ;
  • Figuren 2 bis 6 Prinzipdarstellungen von Teilbereichen der Einrichtung zur Herstellung der Ventilmanschette und
  • Figur 7 dient zur Verdeutlichung der einzelnen Verfahrensschritte bei der Herstellung einer Ventilmanschette.
The invention and advantageous details are explained in more detail below with reference to the drawing in an exemplary embodiment. Show it :
  • Figure 1 is a schematic representation of a transport device for a sack track with a device arranged above for the production of a valve sleeve;
  • Figures 2 to 6 schematic diagrams of subareas of the device for producing the valve sleeve and
  • FIG. 7 serves to illustrate the individual process steps in the manufacture of a valve sleeve.

Die Fig. 1 zeigt ausschnittweise eine Prinzipskizze für eine um eine Ventil-Herstelleinheit erweiterte Sackmaschine. Eine Sackbahn 1, die bei einem einlagigen Sack als offene Sackbahn bezeichnet werden kann bzw. die innere Sackbahn bei einem mehrlagigen Sack darstellt, wird zunächst an einer Rolle 4 umgelenkt und in einer Leimstation B in dem Bereich der späteren Ventilaufbringungen vorgeleimt. Die Leimstation B besteht im wesentlichen aus einer Leimwanne 5, einer Schöpfwalze 6 und einer für einen formatmäßigen Leimauftrag geeigneten Auftragswalze 7. Eine Umlenkwalze 3 sorgt wiederum für eine Umlenkung der offenen Sackbahn 1. Mit der Walze 13b einer noch näher zu beschreibenden Ventilherstellvorrichtung, wird ein Ventil bzw. eine Ventilmanschette 24 aufgebracht und bei Durchlaufen eines Anpreß-Rollenpaars 18 werden die Sackbahn 1 und die aufgebrachte Ventilmanschette für eine innige Verklebung zusammengepreßt. Eine Umlenkwalze 2 am Zwischenproduktaustrag bzw. am Übergang zu einer Sackherstellmaschine erreicht die offene Sackbahn demzufolge mit dem aufgebrachten Ventil.1 shows a section of a schematic diagram for a bagging machine expanded by a valve manufacturing unit. A sack path 1, which can be referred to as an open sack path in a single-layer sack or represents the inner sack path in a multi-layer sack, is first deflected on a roller 4 and pre-glued in a glue station B in the area of the subsequent valve applications. The glue station B essentially consists of a glue pan 5, a scoop roller 6 and an application roller 7 suitable for a format-based glue application Valve or a valve sleeve 24 applied and when passing through a pressure roller pair 18, the blind web 1 and the applied valve sleeve are pressed together for an intimate bonding. A deflection roller 2 at the intermediate product discharge or at the transition to a sack manufacturing machine consequently reaches the open sack path with the valve applied.

Zur Unterstützung der Anpressung läuft im Bereich einer Anpreß-Station 13 ein Transportband 17 um, und einen Zylinder 13b, die zugleich die Aufbringung der Ventilmanschette 24 auf die offene Sackbahn 1 besorgt, dient auf der Gegenseite eines Zylinders 13a als Umlenkwalze für ein oder mehrere Transportbänder 17.To support the pressure, a conveyor belt 17 runs around in the area of a pressing station 13, and a cylinder 13b, which at the same time ensures the application of the valve sleeve 24 to the open sack track 1, serves on the opposite side of a cylinder 13a as a deflecting roller for one or more conveyor belts 17th

Die nachfolgend zu beschreibende Ventilform-und -Aufbringvorrichtung umfaßt folgende Baueinheiten :

  • Eine Rolle 22 stellt die Materialvorratsrolle für eine Ventilbahn 8 dar, aus der die Ventilmanschetten 24 wie noch genauer zu beschreiben hergestellt werden. Mit 21 ist ein Zugwerk skizziert, das einen formatmäßigen Transport der Ventilbahn 8 besorgt. In einem Querschneider 9 mit Schneidmesser 14, das auf einer Oberwalze 9a angebracht ist, wobei eine untere Walze 9b als Gegendruckwalze wirkt, werden von der Ventilbahn 8 nach dem Punkt C Abschnitte in der für die Herstellung der Ventile erforderlichen Länge abgetrennt. Eine Zuggruppe 21' dient zum Weitertransport der nacheinander anfallenden Ventilblätter 24', und mit den Walzen-Gruppen 10, 11, 12 erfolgt nacheinander ein erstes Falzen, ein bereichsweises Beleimen, ein zweites Falzen und Umlegen der Ventilblätter 24' zu einem Ventil 24 in Form der Ziffer « 9 und schließlich die Übergabe der fertigen Ventilmanschette 24 zum bereits erwähnten Übergabezylinder 13b.
The valve forming and applying device to be described below includes the following construction units :
  • A roll 22 represents the material supply roll for a valve path 8, from which the valve sleeves 24 are produced, as will be described in more detail. At 21, a traction mechanism is outlined, which ensures that the valve train 8 is transported in the form of a format. In a cross cutter 9 with a cutting knife 14, which is attached to an upper roller 9a, a lower roller 9b acting as a counter-pressure roller, sections of the length required for the production of the valves are separated from the valve path 8 after point C. A train group 21 'serves for the further transport of the valve sheets 24' which occur in succession, and with the roller groups 10, 11, 12 a first folding, area-by-area gluing, a second folding and folding of the valve sheets 24 'to form a valve 24 takes place the number 9 and finally the transfer of the finished valve sleeve 24 to the transfer cylinder 13b already mentioned.

Die Fig. 2, 3, 4 und 5 zeigen im Detail die Falz-und Beleimungsvorgänge im Bereich der Stationen 10 bis 12:

  • Die Fig. 2 verdeutlicht zunächst den Arbeitsgang am vereinzelten Ventilblatt 24', wenn dieses die Falzgruppe 10 erreicht. Der untere Falzzylinder 10b trägt zwei Falzklappen 16a und 16b, die über Nocken und Steuerkurven 15a, 15b gesteuert werden. Die Fig. 2 zeigt weiterhin, daß das vereinzelte Ventilblatt 24' von der vorderen Falzklappe 16a des Falzzylinders 10b knapp hinter der vorauslaufenden Papierkante erfaßt worden ist, so daß sich eine vordere Lasche 24a des Ventilblatts 24' aufgerichtet hat.
2, 3, 4 and 5 show in detail the folding and gluing processes in the area of stations 10 to 12:
  • 2 first illustrates the operation on the isolated valve sheet 24 'when it reaches the folding group 10. The lower folding cylinder 10b carries two folding flaps 16a and 16b, which are controlled via cams and control cams 15a, 15b. 2 further shows that the isolated valve sheet 24 'has been grasped by the front flap 16a of the folding cylinder 10b just behind the leading paper edge, so that a front flap 24a of the valve sheet 24' has erected.

Die Fig. 3 läßt den nächsten Schritt erkennen : Die Falzklappe 16a hält nach wie vor das Ventilblatt 24' mit der vorderen Lasche 24a fest, und über der Leimauftragswalze 11 der Leimstation 11 wird das offene Ventilblatt 24' bereichsweise beleimt, so daß, wie Fig. 4 zeigt, die Leimspur 23 auf das offene Ventilblatt 24' aufgetragen wird. Das Leimwerk 11 ist in den Figuren 3 und 4 allein mit der Leimauftragswalze 11c wiedergegeben. Aus Fig. 1 geht jedoch hervor, daß das Leimwerk 11 darüberhinaus einen Leimkasten 11a und eine Schöpfwalze 11 b aufweist.3 shows the next step: the folding flap 16a still holds the valve sheet 24 'with the front flap 24a, and over the glue application roller 11 of the glue station 11 the area of the open valve sheet 24' is glued so that, as shown in FIG 4 shows the glue track 23 being applied to the open valve sheet 24 '. The glue unit 11 is shown in FIGS. 3 and 4 solely with the glue application roller 11c. From Fig. 1, however, it appears that the glue unit 11 also has a glue box 11a and a scoop roller 11b.

Aus Fig. 4 ist zu erkennen, daß beim Weiterdrehen des Falzzylinders 10b sich nun auch die Falzklappe 16a geöffnet hat, während die Falzklappe 16b jetzt das noch offene Ventilblatt 24' erfaßt hat, wobei es aufgrund der Eigensteifigkeit des Papiers zu einem Aufrichten einer Lasche 24b kommt, die ihrerseits in entgegengesetzter Richtung abgewinkelt die rückwärts geneigte Lasche 24a trägt. Beim Durchlaufen des noch offenen Ventilblatts 24' durch den Walzenspalt 31 zwischen dem Falzzylinder 10b und einer Greifertrommel 12 wird die nun vorauslaufende Lasche 24b vollends umgelegt, wobei die Lasche 24a auf die Leimspur 23 zu liegen kommt. Damit ist das zwar jetzt noch flach liegende, aber im Prinzip bereits 9-förmige Ventil fertiggefaltet.From Fig. 4 it can be seen that when the folding cylinder 10b is turned further, the folding flap 16a has now opened, while the folding flap 16b has now grasped the still open valve sheet 24 ', due to the inherent stiffness of the paper to erect a flap 24b comes, which in turn angled in the opposite direction carries the backward inclined tab 24a. When the valve sheet 24 ', which is still open, passes through the nip 31 between the folding cylinder 10b and a gripper drum 12, the tab 24b now leading is completely folded over, the tab 24a coming to rest on the glue track 23. The valve, which is still lying flat, but in principle already 9-shaped, is now fully folded.

Die Greifertrommel 12 erfaßt jetzt mit dem Greifer 25 das Ventilblatt 24' auf der Falztrommel 10b, und im Berührungspunkt der Walzen 12 und 13b kommt es schließlich, wie Fig. 6 zeigt, zur Übergabe der fertigen Ventilmanschette 24 von der Greifertrommel 12 auf den Übergabezylinder 13b. Zum Zwecke dieser Übergabe muß ein Greiferfinger 25 (nicht näher dargestellt) in diesem Übergabepunkt öffnen ; gleichzeitig wird die flachliegende Ventilmanschette 24 durch eine feine Nadel 20, die auf dem Übergabezylinder 13b angebracht ist, leicht erfaßt, und die eigentliche Übernahme der fertiggefalzten Ventilmanschette 24 zum Übergabezylinder 13b wird durch ein Saugnäpfchen 19 besorgt, das mit einer nicht näher dargestellten abschnittweise wirkenden Vakuumpumpe verbunden ist. Am unteren Punkt des Übergabezylinders 13b wird das Vakuum von dem Saugnäpfchen 19 abgeschaltet, so daß, unterstützt durch das oder die Bänder 17, die Übergabe der Ventilmanschette 24 vom Übergabezylinder 13b auf die zuvor beschriebene, mit dem Leimwerk 5, 6, 7 abschnittweise vorbeleimte Sackbahn 1 erfolgen kann.The gripper drum 12 now grips with the gripper 25, the valve sheet 24 'on the folding drum 10b, and finally, as shown in FIG. 6, the finished valve sleeve 24 is transferred from the gripper drum 12 to the transfer cylinder 13b at the point of contact of the rollers 12 and 13b . For the purpose of this transfer, a gripper finger 25 (not shown in detail) must open at this transfer point; at the same time, the flat-lying valve sleeve 24 is easily grasped by a fine needle 20, which is attached to the transfer cylinder 13b, and the actual takeover of the finished folded valve sleeve 24 to the transfer cylinder 13b is provided by a suction cup 19, which operates with a vacuum pump, which is not shown in sections connected is. At the lower point of the transfer cylinder 13b, the vacuum is switched off by the suction cup 19, so that, supported by the belt or tapes 17, the transfer of the valve sleeve 24 from the transfer cylinder 13b to the previously described, partially glued blind path with the gluing unit 5, 6, 7 1 can be done.

Vorzugsweise besitzt der obere Falzzylinder 10a zwei nicht näher dargestellte Falzmesser, die beim Durchlaufen des offenen Ventilblatts 8 durch den Walzenspalt 30 zwischen den beiden Falzzylindern 10a und 10b dafür sorgen, daß das Ventilblatt 8 von den beiden Falzklappen 16a und 16b im unteren Falzzylinder 10b erfaßt wird. Hierzu ist eine Taktsteuerung so vorzusehen, daß die Falzklappen 16a bzw. 16b jeweils vor Einlaufen in den Walzenspalt 30 zwischen den Falzzylindern 10a und 10b geöffnet sind, so daß die Falzmesser des oberen Falzzylinders 10a in die durch die offenen Falzklappen 16a, 16b entstehenden Lücken leicht eintauchen und damit das papier in die offenen Falzklappen 16a, 16b eindrücken können. Auf diese Weise ist das offene Ventilblatt 8 nach Passieren des Spalts 30 zwischen dem oberen Falzzylinder 10a und dem unteren Falzzylinder 10b bereits mit beiden Falzzangen erfaßt, noch bevor das offene Ventilblatt 8 die Leimstation 11 passiert. Bei einer derartigen Falzklappen-Steuerung kann es jedoch passieren, daß die größere Falzlasche 24b sich nach Öffnen der Falzklappe 16a nicht ausreichend aufrichtet, was jedoch zum vollständigen Umlegen der Falzklappe 24b im Durchlaufpunkt 31 der Zylinder 10b und 12 von Vorteil wäre. Vorteilhafterweise kann daher das Ventilherstellaggregat auch mit zwei Falzmesserzylindern ausgerüstet werden, so daß der Falzzylinder 10a nur ein Falzmesser aufweist, mit dem sich das sichere Greifen des Ventilblatts 8 durch die Falzklappe 16a sicherstellen läßt. Das auf diese Weise nur einfach mit einer Falzzange ergriffene abgetrennte Ventilblatt 24' durchläuft dann erst die Leimstation 11, bevor mit einem zweiten nicht näher dargestellten Falzzylinder das Greifen des Ventilblatts 24' durch die Falzzange 16b sichergestellt wird. Zum sicheren Aufrichten der Ventillasche 24b ist es dann vorteilhaft, unmittelbar während oder nach dem Greifen des Ventilblatts 24' durch die Falzklappe 16b die vordere Falzklappe 16a bereits zu öffnen. Der Spalt 31 zwischen den beiden Zylindern 10b und 12 dient sowohl zum Umlegen der Falzlasche 24b als auch zum Ergreifen des durch dieses Umlegen fertiggestellten Ventils durch den Greiferfinger 25, der auch als Greiferzange ausgebildet sein kann.The upper folding cylinder 10a preferably has two folding knives (not shown in more detail) which, when the open valve sheet 8 passes through the nip 30 between the two folding cylinders 10a and 10b, ensure that the valve sheet 8 is gripped by the two folding flaps 16a and 16b in the lower folding cylinder 10b . For this purpose, a clock control is to be provided in such a way that the folding jaws 16a and 16b are each opened before entering the nip 30 between the folding cylinders 10a and 10b, so that the folding blades of the upper folding cylinder 10a easily open into the gaps caused by the open folding jaws 16a, 16b immerse and thus press the paper into the open folding flaps 16a, 16b. In this way, after passing the gap 30 between the upper folding cylinder 10a and the lower folding cylinder 10b, the open valve sheet 8 is already gripped with both folding tongs before the open valve sheet 8 passes the glue station 11. With such a folding jaw control, however, it can happen that the larger folding flap 24b does not straighten up sufficiently after opening the folding jaw 16a, which would, however, be advantageous for the complete folding of the folding jaw 24b at the passage point 31 of the cylinders 10b and 12. Advantageously, the valve manufacturing unit can therefore also be equipped with two folding knife cylinders, so that the folding cylinder 10a has only one folding knife, with which the secure gripping of the valve sheet 8 by the folding flap 16a can be ensured. The separated valve sheet 24 ', which is gripped in this way only with a pair of folding pliers, then only passes through the glue station 11 before the gripping of the valve sheet 24' is ensured by the folding pliers 16b with a second folding cylinder (not shown). To securely erect the valve flap 24b, it is then advantageous to open the front folding flap 16a immediately during or after the valve sheet 24 'is gripped by the folding flap 16b. The gap 31 between the two cylinders 10b and 12 serves both for folding over the folding tab 24b and for gripping the valve, which has been completed by this folding over, by the gripper finger 25, which can also be designed as gripper pliers.

Die Fig. 7 verdeutlicht schließlich nocheinmal in perspektivischen Einzelbildern die einzelnen Verfahrensschritte zur Herstellung des 9-förmigen Ventils. Die Fig. 7a zeigt das noch ungefalzte, aber bereits von der Ventilbahn 8 abgetrennte Ventilblatt 24', wie es z. B. im Bereich der Zugstation 21' durchläuft. Die Fig. 7b verdeutlicht das Ventilblatt 24' nach dem ersten Falzen in der Falzklappe 16a des Falzzylinders 10b, wobei sich die vordere Lasche 24a bildet. Die Fig. 7c zeigt das einmal vorgefalzte Ventilblatt 24' mit der vorderen Lasche 24a nach Durchlaufen der Leimstation 11, die den Auftrag der Leimspur 23 besorgt hat. Die Fig. 7d schließlich zeigt das Ventilblatt 24' nach dem zweiten Falzen in der Falzklappe 16b, so daß nun deutlich das Ventilblatt 24' mit der großen Lasche 24b und der kleinen Lasche 24a erkennbar ist. Das in Fig. 7e fertige Ventil 24 wird schließlich auf die nach Fig. 7f mit den Leimspuren 26 versehene Sackbahn 1 aufgebracht, und die Fig. 7g zeigt noch die offene Sackbahn 1 mit dem aufgebrachten Ventil 24, wie sich der Verbund Sackbahn 1 mit Ventil 24 nach Durchlaufen der Anpreß-Rollenpaare 18 darstellt.Finally, FIG. 7 once again illustrates the individual process steps for producing the 9-shaped valve in perspective single images. Fig. 7a shows the still unfolded, but already separated from the valve sheet 8 valve sheet 24 ', as z. B. passes in the area of the train station 21 '. 7b illustrates the valve sheet 24 'after the first folding in the folding flap 16a of the folding cylinder 10b, the front flap 24a being formed. FIG. 7c shows the valve sheet 24 ′ which has been pre-folded once, with the front flap 24a after passing through the glue station 11, which has carried out the application of the glue track 23. 7d finally shows the valve sheet 24 'after the second folding in the folding flap 16b, so that the valve sheet 24' with the large tab 24b and the small tab 24a can now be clearly seen. The valve 24 finished in FIG. 7e is finally applied to the blind path 1 provided with the glue traces 26 according to FIG. 7f, and FIG 24 after passing through the pressure roller pairs 18.

Um eine einfache Anpassung des Ventil-Herstellvorgangs an unterschiedliche Sackgrößen zu ermöglichen, kann für das Ventil-Herstellaggregat eine Taktsteuerung derart vorgesehen sein, daß beispielsweise der Weitertransport der abgetrennten Ventilblätter 24' durch die Zuggruppe 21' auf die änderbare Sackgröße synchronisiert wird.In order to enable a simple adaptation of the valve manufacturing process to different bag sizes, a clock control can be provided for the valve manufacturing unit such that, for example, the further transport of the separated valve sheets 24 'by the train group 21' is synchronized with the changeable bag size.

Die erfindungsgemäße Vorrichtung zur Herstellung von Papier- oder Foliensäcken mit selbstschließendem Ventil zeichnet sich vor allem dadurch aus, daß in einem weitgehend vollautomatischem Prozeß preiswerte selbstschließende Ventilsäcke für pulverförmiges oder körniges Gut herstellbar sind, wobei unterschiedliche Sackgrößen berücksichtigt werden können.The device according to the invention for the production of paper or film bags with a self-closing valve is characterized in particular by the fact that inexpensive self-closing valve bags for powdery or granular material can be produced in a largely fully automated process, different bag sizes being able to be taken into account.

Claims (4)

1. Apparatus for producing a single-layer or multilayer valve bag from paper or film with a self- closing valve, having
a transport device (2, 3, 4) for an open bag web (1
a gluing station (B, 6, 7) which coats the bag web (1), guided past it, with glue according to the appropriate format in regions determined according to a fixed cycle and locally, and
a pressing-on station (13, 18) in which valve sheets delivered to the glue-coated regions in synchronism with the fixed cycle are pressed onto the inner open bag web (1),

characterized by
a separate unit which is arranged above or at the side of the transport device (2, 3, 4) and is synchronized with the cycle of the transport device and which is intended for producing a valve sleeve (24) to be glued in and has the following sub-assemblies :
a pair of crosscutting cylinders (9) with a cutting knife (14) which cuts a valve paper web (8) to predetermined valve sheet lengths,
a group of folding cylinders (10) which grasp the individual valve sheets (24') and fold them,
a gluing station (11), in which the valve sheets (24') are coated with glue in specific regions, and
a gripper drum (12) which, in interaction with a folding cylinder (10b), folds the valve sheet (24') into a valve tube (24) and, via the pressing-on station, applies it to the previously glue-coated regions of the bag web (1) delivered via the transport device (2, 3, 4).
2. Apparatus according to Claim 1, characterized in that one of the folding cylinders (10b) has folding flaps (16a, 16b) to be opened and closed via a cam control (15a, 15b) and interacts with a folding back-up cylinder (10a) equipped with two corresponding folding knives.
3. Apparatus according to Claim 1 or 2, characterized by two pressing-on stations for part regions to be glued together, which,
on the one hand, ensure that the valve sleeve (24) is glued effectively to a glue strip (23) and a front valve tab (24a) by the interaction of one folding cylinder (10b) with a gripper drum (12) and of the gripper drum (12) with a transverse cylinder (13b), and,
on the other hand, ensure that the valve sleeve (24) is glued effectively to the open bag web (1) by means of pairs of pressing-on rollers (18).
4. Apparatus according to one of the preceding claims, characterized by an adjustable cycle control for the unit producing the valve sleeve (24), in order to adjust the delivery of the valve sleeves (24) to differing length portions of the bag web (1) correctly in terms of time and place.
EP83900188A 1981-12-29 1982-12-29 Method and device for manufacturing an automatic closure valve bag Expired EP0098276B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83900188T ATE29428T1 (en) 1981-12-29 1982-12-29 METHOD AND APPARATUS FOR MANUFACTURING A VALVE BAG WITH A SELF-CLOSING VALVE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56214294A JPS58116142A (en) 1981-12-29 1981-12-29 Device for manufacturing paper bag with valve
JP214294/81 1981-12-29

Publications (2)

Publication Number Publication Date
EP0098276A1 EP0098276A1 (en) 1984-01-18
EP0098276B1 true EP0098276B1 (en) 1987-09-09

Family

ID=16653338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900188A Expired EP0098276B1 (en) 1981-12-29 1982-12-29 Method and device for manufacturing an automatic closure valve bag

Country Status (5)

Country Link
US (1) US4725262A (en)
EP (1) EP0098276B1 (en)
JP (1) JPS58116142A (en)
DE (1) DE3277181D1 (en)
WO (1) WO1983002252A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324719A1 (en) * 1983-07-08 1985-01-17 Kochsiek Maschinenbau GmbH Soltau, 3040 Soltau METHOD AND MACHINE FOR PRODUCING FOLDED BAGS FROM PAPER
DE4137349A1 (en) * 1991-11-13 1993-05-19 Windmoeller & Hoelscher DEVICE FOR APPLYING PREVIOUSLY GLUEED LABELS OR HOSE PIECES ON A CONTINUOUS RAIL OR ON CONTINUOUS WORKPIECES
DE50005674D1 (en) * 1999-12-03 2004-04-22 Sig Pack Systems Ag Beringen Process and device for the production of 3-sealed edge bags with a welded closure profile

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720452C (en) * 1938-12-14 1942-05-06 Windmoeller & Hoelscher Device for the production of paper tubes
DE855943C (en) * 1941-06-10 1952-11-17 Maschb Honsel & Co Method of manufacturing valve bags
US2460885A (en) * 1944-12-09 1949-02-08 St Regis Paper Co Multiply pasted end bag with sealed inner ply
US2668481A (en) * 1948-10-29 1954-02-09 Arkell And Smiths Machine for manufacturing valve bags
US2775171A (en) * 1951-06-11 1956-12-25 Interstate Bag Company Method and machine for bag making
US2708392A (en) * 1952-07-14 1955-05-17 Orr Mfg Company Inc Apparatus for incorporating sleeved valves in bags
US2762272A (en) * 1953-04-13 1956-09-11 Kraft Bag Corp Apparatus for making valve bags
FR1103604A (en) * 1953-05-12 1955-11-04 St Regis Paper Co Method and apparatus for placing valve sleeves during forming of bag tubes
US2791160A (en) * 1954-02-15 1957-05-07 Crown Zellerbach Corp Method of making valve bags
US2891791A (en) * 1955-12-19 1959-06-23 Miehle Goss Dexter Inc Jaw folding mechanism
US2955517A (en) * 1956-02-14 1960-10-11 Honsel Carl Method of manufacturing crossed bottom bags with tubular sleeve inserts
US2895387A (en) * 1956-12-07 1959-07-21 Arkell And Smiths Multiply bag with supplemental sleeve
DE1128731B (en) * 1958-10-10 1962-04-26 Windmoeller & Hoelscher Method and device for the production of two- or multi-layer valve inserts with incisions offset from one another in the individual layers for cross-bottom valve bags made of paper.
US3479802A (en) * 1965-02-23 1969-11-25 Studley Paper Co Multi-compartment vacuum cleaner filter bag
FR1465224A (en) * 1966-01-24 1967-01-06 Windmoeller & Hoelscher Device for feeding and welding valve leaflets in the manufacture of plastic bags
DE1511022A1 (en) * 1966-03-23 1969-07-03 Windmoeller & Hoelscher Packaging sack and method and device for its manufacture
FR1487788A (en) * 1966-07-26 1967-07-07 Windmoeller & Hoelscher Plastic valve bag and device for making such a bag
US3472130A (en) * 1966-09-21 1969-10-14 Windmoeller & Hoelscher Process of manufacturing valved bags having side gussets from webs of plastic sheet material
GB1232028A (en) * 1967-08-21 1971-05-19
US3551238A (en) * 1968-01-05 1970-12-29 Windmoeller & Hoelscher Process and apparatus for manufacturing valved bag of plastic material sheeting
DE1907575A1 (en) * 1969-02-14 1970-08-20 Windmoeller & Hoelscher Method and device for forming and attaching hinge valves to bags
CA956602A (en) * 1969-04-05 1974-10-22 Reiner Muller Valve for valved bags
CA878245A (en) * 1969-09-17 1971-08-17 Du Pont Of Canada Limited Process and apparatus for providing tube valves in bags
US3853040A (en) * 1972-05-02 1974-12-10 Windmoeller & Hoelscher Process and apparatus for making crossed-end bags from weldable material

Also Published As

Publication number Publication date
DE3277181D1 (en) 1987-10-15
US4725262A (en) 1988-02-16
WO1983002252A1 (en) 1983-07-07
JPS58116142A (en) 1983-07-11
JPH0152176B2 (en) 1989-11-08
EP0098276A1 (en) 1984-01-18

Similar Documents

Publication Publication Date Title
EP0378052B1 (en) Packaging device with a bag-making machine for making filling-bags
EP2739455A1 (en) Method and device for producing, filling, and closing bags, and a bag
DE3809125C2 (en)
US3576154A (en) Process and apparatus for manufacturing bags comprising a liner bag which protrudes from the opening
DE102007054714B4 (en) Apparatus and method for making a bag of paper and paper bags
EP0098276B1 (en) Method and device for manufacturing an automatic closure valve bag
EP0164079A1 (en) Machine for the production of packets containing a solvent
EP0541936B1 (en) Device for applying glued cards or sleeves on a continuous web or on moving workpieces
DE3818910A1 (en) DEVICE FOR FILLING AND SEALING OPEN BAGS
DE2255768B2 (en) METHOD AND DEVICE FOR MANUFACTURING BLOCK BOTTOM BAGS FROM HEAT SEALABLE MATERIAL
US4634414A (en) Method and apparatus for manufacturing folding paper sacks
WO2009121542A1 (en) Device and method for producing bags from pieces of tubing
US3657975A (en) Manufacture of bags which have a relatively wide base incorporating a filling valve
DE2362613A1 (en) METHOD AND APPARATUS FOR MANUFACTURING PLASTIC SIDE FOLD VALVE CORNERS
DE2704665A1 (en) Packing machine for magazines or periodicals - uses continuous packing film folded over to form tube parted at ends
DE19611740C2 (en) Method and device for packaging packaged goods in a packaging bag with a reclosable flap
DE3740058C2 (en)
DE102020214975B4 (en) Bag, method and apparatus for making a bag
EP0121041A2 (en) Side fold bag with an upholding outer bag and a liner bag, and method for its production
DE4338781A1 (en) Process and device for producing a sack or bag with a carrying handle from thermoplastic
WO2023041350A1 (en) Method and device for producing packs for products of the cigarette industry
WO2023061776A1 (en) Method and apparatus for producing a bundle pack for hygiene products, and corresponding bundle pack
DE622587C (en) Double-lined packaging sleeve and method and device for producing the same
DE2621494C2 (en) Device for manufacturing and applying valve hoses to valve bags
DE1179086B (en) Machine for manufacturing a bag closed at both ends by a block bottom with a filling valve

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

Designated state(s): AT BE CH DE FR GB LI LU NL SE

17P Request for examination filed

Effective date: 19831222

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB LI LU NL SE

REF Corresponds to:

Ref document number: 29428

Country of ref document: AT

Date of ref document: 19870915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3277181

Country of ref document: DE

Date of ref document: 19871015

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

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

Effective date: 19871231

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

Payment date: 19901210

Year of fee payment: 9

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

Ref country code: SE

Payment date: 19901211

Year of fee payment: 9

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

Ref country code: AT

Payment date: 19901213

Year of fee payment: 9

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

Ref country code: FR

Payment date: 19901214

Year of fee payment: 9

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

Ref country code: BE

Payment date: 19901219

Year of fee payment: 9

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

Ref country code: DE

Payment date: 19901227

Year of fee payment: 9

Ref country code: CH

Payment date: 19901227

Year of fee payment: 9

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

Ref country code: NL

Payment date: 19901231

Year of fee payment: 9

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

Ref country code: GB

Effective date: 19911229

Ref country code: AT

Effective date: 19911229

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

Ref country code: SE

Effective date: 19911230

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

Ref country code: LI

Effective date: 19911231

Ref country code: CH

Effective date: 19911231

Ref country code: BE

Effective date: 19911231

BERE Be: lapsed

Owner name: FISCHER & KRECKE

Effective date: 19911231

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

Ref country code: NL

Effective date: 19920701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19920901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83900188.0

Effective date: 19920704