EP0659539A1 - Process for attaching handles on metallic containers and apparatus for carrying out this process - Google Patents

Process for attaching handles on metallic containers and apparatus for carrying out this process Download PDF

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Publication number
EP0659539A1
EP0659539A1 EP93120864A EP93120864A EP0659539A1 EP 0659539 A1 EP0659539 A1 EP 0659539A1 EP 93120864 A EP93120864 A EP 93120864A EP 93120864 A EP93120864 A EP 93120864A EP 0659539 A1 EP0659539 A1 EP 0659539A1
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EP
European Patent Office
Prior art keywords
handles
containers
container
welding
handle
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
EP93120864A
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German (de)
French (fr)
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EP0659539B1 (en
Inventor
Pierre-René Peronard
Hans-Joachim Werner
Hermann Faber
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NEUE MASCHINENFABRIK GMBH
Original Assignee
Verwaltungsgesellschaft Khk Bodyforming Mbh
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Application filed by Verwaltungsgesellschaft Khk Bodyforming Mbh filed Critical Verwaltungsgesellschaft Khk Bodyforming Mbh
Priority to DE59309988T priority Critical patent/DE59309988D1/en
Priority to ES93120864T priority patent/ES2145760T3/en
Priority to EP19930120864 priority patent/EP0659539B1/en
Publication of EP0659539A1 publication Critical patent/EP0659539A1/en
Application granted granted Critical
Publication of EP0659539B1 publication Critical patent/EP0659539B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F45/00Wire-working in the manufacture of other particular articles
    • B21F45/004Mounting bails on containers

Definitions

  • the invention relates to a method of the type mentioned in the preamble of claim 1 for attaching handles to metal containers and a device according to claim 4 for performing the method.
  • ears are first welded to a container made of metal using the projection welding method, each of which has a hole into which a hook is hooked at the end of a bow-shaped handle.
  • the ears consist of a cup-shaped base body, from the edges of which a flange extends, from which rib-shaped humps protrude, while the hole is in the bottom of the base body.
  • the flanges of the ears with the humps are pressed by an outer electrode against the outer wall of the container, against which a counter electrode rests from the inside. Due to the increased contact resistances in the area of the humps, resistance wear occurs in the area of the humps. After attaching the ears, the hooks must be hooked into the holes in the ears by hand. The manufacturing costs are therefore relatively high.
  • the invention has for its object to provide a method for attaching handles to containers made of metal, which is easy to carry out and is suitable for the mechanical attachment of handles made of plastic.
  • the object of the invention is also to provide an apparatus for performing this method.
  • the object on which the invention is based is achieved by the method specified in the characterizing part of claim 1. It is also solved by the device specified in the characterizing part of claim 4.
  • the invention is based on the idea of first bringing together a handle made of plastic and an eyelet having a flange and intended as a bearing journal for the handle and then welding the eyelet to the container made of metal using the known projection welding method.
  • the welding process takes place while the plastic handle is already on the eyelet and thus in the welding area.
  • the handle which is usually made of thermoplastic, is not damaged or even melted.
  • the resistance welding points formed on the humps do not lead to such an increase in the temperature of the eye, which can lead to an impairment of the plastic of the handle.
  • a particular advantage of the method according to the invention is that there is no need to subsequently attach the handle, for example by unbuttoning the ends of the handle provided with holes on the eyelets or subsequently flanging the eyelets to form holding flanges to prevent the ends of the handles from sliding down.
  • a particularly expedient development of the invention is characterized in claim 2 and consists in that the handles are formed immediately before attachment to the container by unwinding a plastic band from a roll and cutting it to the length of the handle, during or after cutting to length Holes are made in the ends of the cut sections of the plastic tape.
  • a particularly useful device for performing the method according to the invention is specified in claim 4.
  • Claims 5 and 6 characterize useful further developments the device according to claim 4.
  • Fig. 1 shows a plastic tape 1 made of stiff material, which runs from a winding, not shown, and is transported by means of transport in the form of rollers 2 and 3 in the direction of an arrow 4 into a cutting device 5, which is indicated only schematically by a dash-dotted line, which the plastic tape 1 cut into individual pieces, one of which is shown as handle 6.
  • the cutting device 5 simultaneously punches holes 7 in the ends of the cut pieces.
  • a conveyor belt 8 which, as can be seen in particular in connection with FIG. 2, container 9 in the direction of an arrow 10 transversely to the direction of the plastic belt 1 or the handle 6, indicated by arrow 4, mitral.
  • a handle 6 is fed to a projection welding device 12 by a device 11 and is thereby bent into a handle shape: a handle bent in this way is provided with the reference number 13 in FIG. 1 and shown in FIG. 3 with a view of its side.
  • FIG. 1 From Fig. 1 it can be seen that rows of eyelets 14 and 15 are fed above the curved ends of the handles 13, which are brought into a position in each case after separation by means not shown, in which they with the holes in the ends of the Handle 13 are in alignment.
  • two eyelets 16 and 17 are shown. They each consist of a cylindrical part, on the front edge facing the container 9 there are humps, that is to say small elevations which form the point-shaped welding points in a later welding process.
  • the eyelets 16 and 17 At their end facing away from the container 9, the eyelets 16 and 17 each have flanges which prevent the ends of the handles 13 from slipping off laterally when the eyelets 16 and 17 are welded onto the container 9 as bearing journals.
  • the welding electrodes 18 and 19 are located in the projection welding device 12, which is shown in FIG. 2.
  • counter electrodes are also provided, which are not shown in the drawing and are each introduced from above into a container 9 for carrying out the welding process, so that they then represent a counter bearing for the welding electrodes 18 and 19.
  • a plastic strip 1 is gradually guided through the rollers 2 and 3 in the direction of arrow 4 into the cutting device 9, which thus produces handles 6 provided with holes 7 at the ends .
  • These are bent and each of their ends in a fastening position to a container 9 which is gradually brought up by conveyor belt 8.
  • the welding electrodes 18 and 19 are moved in the direction of the container 9, so that the eyelets 16 and 17 into the holes aligned therewith the handle 13 is moved and pressed with its humps against the wall of the container 9, the counter electrodes, not shown, forming the counter bearing.
  • the eyes 16 and 17 are welded to the container 9 in the area of the humps without the plastic of the handle 13 being impaired in the area of its ends.
  • the welding electrodes 18 and 19 cause heat dissipation and thus cooling.
  • the welding electrodes are withdrawn and the counter electrodes are moved up out of the container 9, after which the container 9 is moved by one step in the direction of the arrow 10 (see FIG. 2).
  • another container is moved on the conveyor belt 8 under the hump welding device 12 and provided with a newly supplied handle in the manner described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Handles (6, 13) made from plastic strip (1) are successively brought, with holes (7) provided in each case at their ends, into a position, in relation to successively supplied containers (9), intended for the fastening of the handles (6, 13). Then in each case an eye (16, 17) is brought in front of a hole, the cylindrical part of which eye has an external diameter corresponding to the diameter of the hole (7) at the end of the handle (6, 13) and has bulges at its end facing the container (9) while its flange is directed away from the container (9). Then, welding electrodes, at the tip of which there are preferably centring pins, are guided against or into the eyes (16, 17) which are thus moved into the holes (7) in the handles (6, 13) until the bulges of the eyes (16, 17) butt against the outer wall of the containers (9), counter-electrodes in each case bearing against the inner side of the containers (9) and a welding current being supplied for bulge welding. The bulge welding is simple, does not affect the handles which are made of plastic and makes subsequent assembly operations superfluous. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren der im Oberbegriff des Anspruchs 1 genannten Art zum Anbringen von Henkeln an Behälter aus Metall sowie eine Vorrichtung gemäß Anspruch 4 zur Durchführung des Verfahrens.The invention relates to a method of the type mentioned in the preamble of claim 1 for attaching handles to metal containers and a device according to claim 4 for performing the method.

Durch US-PS 1,670,131 ist ein Verfahren der betreffenden Art bekannt, bei dem an einen Behälter aus Metall zunächst nach dem Buckelschweißverfahren Ohren angeschweißt werden, die jeweils ein Loch aufweisen, in die ein Haken am Ende eines bügelförmigen Henkels eingehakt wird. Die Ohren bestehen aus einem napfförmigen Grundkörper, von dessen Rändern sich ein Flansch erstreckt, aus dem rippenförmige Buckel vorstehen, während sich das Loch im Boden des Grundkörpers befindet. Zur Verbindung der Ohren mit dem Behälter aus Metall werden die Flansche der Ohren mit den Buckeln durch eine äußere Elektrode gegen die Außenwandung des Behälters gedrückt, an der von innen eine Gegenelektrode anliegt. Durch die erhöhten Übergangswiderstände im Bereich der Anlagen der Buckel erfolgt eine Widerstandsverschleißung im Bereich der Buckel. Nach der Anbringung der Ohren muß das Einhängen der Bügel mit den Haken in die Löcher der Ohren von Hand erfolgen. Die Fertigungskosten sind daher verhältnismäßig hoch.From US-PS 1,670,131 a method of the type in question is known, in which ears are first welded to a container made of metal using the projection welding method, each of which has a hole into which a hook is hooked at the end of a bow-shaped handle. The ears consist of a cup-shaped base body, from the edges of which a flange extends, from which rib-shaped humps protrude, while the hole is in the bottom of the base body. To connect the ears to the metal container, the flanges of the ears with the humps are pressed by an outer electrode against the outer wall of the container, against which a counter electrode rests from the inside. Due to the increased contact resistances in the area of the humps, resistance wear occurs in the area of the humps. After attaching the ears, the hooks must be hooked into the holes in the ears by hand. The manufacturing costs are therefore relatively high.

Durch die Firmendruckschrift "Fully Automatic Ear Welding and Bailing Line Series 40" der Firma MFB Maschinenfabrik GmbH in D-38021 Braunschweig ist eine Vorrichtung zur Durchführung eines Verfahrens der zuvor genannten Art bekannt, bei dem die Henkel in der Maschine aus Drahtstücken geformt und mit ihren hakenförmigen Enden in die Löcher in den Ohren eingesetzt werden. Eine Anbringung von Henkeln aus Kunststoff ist mit dieser bekannten Vorrichtung nicht möglich.Through the company publication "Fully Automatic Ear Welding and Bailing Line Series 40" from MFB Maschinenfabrik GmbH in D-38021 Braunschweig, a device for carrying out a method of the aforementioned type is known, in which the handles in the machine are formed from pieces of wire and are inserted with their hook-shaped ends into the holes in the ears. Attaching plastic handles is not possible with this known device.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Anbringen von Henkeln an Behälter aus Metall zu schaffen, das einfach durchzuführen und für die maschinelle Anbringung von Henkeln aus Kunststoff geeignet ist. Aufgabe der Erfindung ist es auch, eine Vorrichtung zur Durchführung dieses Verfahrens zu schaffen.The invention has for its object to provide a method for attaching handles to containers made of metal, which is easy to carry out and is suitable for the mechanical attachment of handles made of plastic. The object of the invention is also to provide an apparatus for performing this method.

Die der Erfindung zugrundeliegende Aufgabe wird durch das im Kennzeichen des Anspruchs 1 angegebene Verfahren gelöst. Sie wird auch durch die im Kennzeichen des Anspruchs 4 angegebene Vorrichtung gelöst.The object on which the invention is based is achieved by the method specified in the characterizing part of claim 1. It is also solved by the device specified in the characterizing part of claim 4.

Der Erfindung liegt der Gedanke zugrunde, einen Henkel aus Kunststoff und eine einen Flansch aufweisende und als Lagerzapfen für den Henkel bestimmte Öse zunächst zusammenzuführen und dann die Öse nach dem bekannten Buckelschweißverfahren an den aus Metall bestehenden Behälter anzuschweißen. Der Schweißvorgang erfolgt also, während sich der aus Kunststoff bestehende Henkel bereits auf der Öse und somit im Schweißbereich befindet. Bei dem Schweißvorgang wird der üblicherweise aus thermoplastischem Kunststoff bestehende Henkel nicht beschädigt oder gar geschmolzen. Die an den Buckeln gebildeten Widerstandsschweißstellen führen nicht zu einer solchen Erhöhung der Temperatur der Öse, die zu einer Beeinträchtigung des Kunststoffs des Henkels führen kann. Hierzu trägt auch die Tatsache bei, daß die kalte, an der Öse während des Schweißvorganges anliegende Schweißelektrode für eine Wärmeabfuhr von der Öse gerade in dem Bereich beiträgt, in dem sich die Enden des Henkels mit den als Lager dienenden Löchern auf den Ösen befinden. Dieser liegt in der Regel auf dem zylindrischen Teil der Öse entfernt von den Buckeln und den Schweißstellen, wenn der gebogene Henkel unter einer Biegespannung steht und somit seine Enden nach außen drückt. Ein besonderer Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß ein nachträgliches umständliches Anbringen des Henkels beispielsweise durch Aufknöpfen der mit Löchern versehenen Enden des Henkels auf die Ösen oder ein nachträgliches Aufbörteln der Ösen zur Bildung von Halteflanschen gegen ein Herabrutschen der Enden der Henkel entfällt.The invention is based on the idea of first bringing together a handle made of plastic and an eyelet having a flange and intended as a bearing journal for the handle and then welding the eyelet to the container made of metal using the known projection welding method. The welding process takes place while the plastic handle is already on the eyelet and thus in the welding area. During the welding process, the handle, which is usually made of thermoplastic, is not damaged or even melted. The resistance welding points formed on the humps do not lead to such an increase in the temperature of the eye, which can lead to an impairment of the plastic of the handle. This is also due to the fact that the cold welding electrode lying against the eyelet during the welding process contributes to heat dissipation from the eyelet just in the area in which the ends of the handle are used as the bearings Holes are located on the eyelets. This is usually on the cylindrical part of the eyelet away from the humps and the welds when the bent handle is under a bending stress and thus pushes its ends outwards. A particular advantage of the method according to the invention is that there is no need to subsequently attach the handle, for example by unbuttoning the ends of the handle provided with holes on the eyelets or subsequently flanging the eyelets to form holding flanges to prevent the ends of the handles from sliding down.

Eine besonders zweckmäßige Weiterbildung der Erfindung ist im Anspruch 2 gekennzeichnet und besteht darin, daß die Henkel unmittelbar vor dem Anbringen an die Behälter gebildet werden, indem ein Kunststoffband von einer Rolle abgewickelt und entsprechend der Länge der Henkel abgelängt wird, wobei beim oder nach dem Ablängen Löcher in die Enden der abgelängten Abschnitte des Kunststoffbandes eingebracht werden. Auf diese Weise entfällt ein aufwendiges, kompliziertes Transportieren und Orientieren vorgefertigter Henkel zu dem Ort des Anbringens, wobei das Abwickeln des Bandes von einem Wickel und Zuführen zu dem Ort des Ablängens keine besonderen Schwierigkeiten bereitet.A particularly expedient development of the invention is characterized in claim 2 and consists in that the handles are formed immediately before attachment to the container by unwinding a plastic band from a roll and cutting it to the length of the handle, during or after cutting to length Holes are made in the ends of the cut sections of the plastic tape. In this way, a complicated, complicated transporting and orienting of prefabricated handles to the place of attachment is eliminated, the unwinding of the tape from a roll and feeding it to the place of cutting to length presents no particular difficulties.

Grundsätzlich ist es möglich, die Henkel an die Behälter anzubringen, während sich diese bewegen. Zweckmäßig ist es jedoch, gemäß der Weiterbildung nach Anspruch 3 die Bildung der Henkel und/oder die Anbringung an die Behälter bei pilgerschrittartiger Bewegung der Henkel und/oder Behälter zu bewirken. Die die einzelnen Verfahrensschritte bewirkenden Vorrichtungen und Werkzeuge können somit ortsfest sein.Basically, it is possible to attach the handles to the containers while they are moving. It is expedient, however, to effect the formation of the handles and / or the attachment to the containers upon pilgrim-like movement of the handles and / or containers. The devices and tools effecting the individual method steps can thus be stationary.

Eine besonders zweckmäßige Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens ist in Anspruch 4 angegeben. Ansprüche 5 und 6 kennzeichnen zweckmäßige Weiterbildungen der Vorrichtung gemäß Anspruch 4.A particularly useful device for performing the method according to the invention is specified in claim 4. Claims 5 and 6 characterize useful further developments the device according to claim 4.

Anhand der Zeichnungen soll das erfindungsgemäße Verfahren anhand eines Ausführungsbeispiels einer prinzipiell dargestellten Vorrichtung gemäß der Erfindung zur Durchführung dieses Verfahrens näher erläutert werden.

  • Fig. 1 ist eine Ansicht der Vorrichtung in Förderrichtung der Behälter und
  • Fig. 2 ist eine Ansicht der Vorrichtung gemäß Fig. 1 quer zur Förderrichtung der Behälter.
With reference to the drawings, the method according to the invention is to be explained in more detail using an exemplary embodiment of a device according to the invention for carrying out this method, which is shown in principle.
  • Fig. 1 is a view of the device in the conveying direction of the container and
  • FIG. 2 is a view of the device according to FIG. 1 transversely to the conveying direction of the containers.

Fig. 1 zeigt ein Kunststoffband 1 aus steifem Material, das von einem nicht dargestellten Wickel abläuft und durch Transportmittel in Form von Walzen 2 und 3 in Richtung eines Pfeiles 4 in eine durch eine strichpunktierte Linie nur schematisch angedeutete Ablängeinrichtung 5 transportiert wird, die das Kunststoffband 1 in einzelne Stücke ablängt, von denen eines als Henkel 6 gezeigt ist. Beim Ablängen stanzt die Ablängeinrichtung 5 gleichzeitig Löcher 7 in die Enden der abgelängten Stücke.Fig. 1 shows a plastic tape 1 made of stiff material, which runs from a winding, not shown, and is transported by means of transport in the form of rollers 2 and 3 in the direction of an arrow 4 into a cutting device 5, which is indicated only schematically by a dash-dotted line, which the plastic tape 1 cut into individual pieces, one of which is shown as handle 6. When cutting to length, the cutting device 5 simultaneously punches holes 7 in the ends of the cut pieces.

Unterhalb der abgelängten Henkel 6 befindet sich ein Transportband 8, das, wie das insbesondere in Verbindung mit Fig. 2 ersichtlich ist, Behälter 9 in Richtung eines Pfeiles 10 quer zur Richtung des Kunststoffbandes 1 bzw. des Henkels 6, angedeutet durch Pfeil 4, pilgerschrittartig bewegt. Durch eine Vorrichtung 11 wird jeweils ein Henkel 6 einer Buckelschweißvorrichtung 12 zugeführt und dabei in eine Henkelform gebogen: Ein so gebogener Henkel ist in Fig. 1 mit der Bezugsziffer 13 versehen und in Fig. 3 mit Blick auf seine Seite gezeigt.Below the cut handle 6 is a conveyor belt 8, which, as can be seen in particular in connection with FIG. 2, container 9 in the direction of an arrow 10 transversely to the direction of the plastic belt 1 or the handle 6, indicated by arrow 4, pilgrim-like emotional. A handle 6 is fed to a projection welding device 12 by a device 11 and is thereby bent into a handle shape: a handle bent in this way is provided with the reference number 13 in FIG. 1 and shown in FIG. 3 with a view of its side.

Aus Fig. 1 ist zu ersehen, daß oberhalb der gebogenen Enden der Henkel 13 jeweils Reihen von Ösen 14 und 15 zugeführt werden, die nach Vereinzelung durch nicht dargestellte Mittel jeweils in eine Position gebracht werden, in der sie mit den Löchern in den Enden der Henkel 13 fluchten. In dieser Stellung sind zwei Ösen 16 und 17 gezeigt. Sie bestehen jeweils aus einem zylindrischen Teil, an dessen dem Behälter 9 zugewandten Stirnkante sich Buckel befinden, also kleine Erhebungen, die bei einem späteren Schweißvorgang die punktförmigen Schweißstellen bilden. An ihrem dem Behälter 9 abgewandten Ende weisen die Ösen 16 und 17 jeweils Flansche auf, die ein späteres Abrutschen der Enden der Henkel 13 von den Ösen 16 bzw. 17 verhindern, wenn diese als Lagerzapfen an dem Behälter 9 angeschweißt sind.From Fig. 1 it can be seen that rows of eyelets 14 and 15 are fed above the curved ends of the handles 13, which are brought into a position in each case after separation by means not shown, in which they with the holes in the ends of the Handle 13 are in alignment. In this position two eyelets 16 and 17 are shown. They each consist of a cylindrical part, on the front edge facing the container 9 there are humps, that is to say small elevations which form the point-shaped welding points in a later welding process. At their end facing away from the container 9, the eyelets 16 and 17 each have flanges which prevent the ends of the handles 13 from slipping off laterally when the eyelets 16 and 17 are welded onto the container 9 as bearing journals.

In Fig. 1 sind jeweils mit den Ösen 16 und 17 und auch mit den Löchern in den Enden des Henkels 13 fluchtende Schweißelektroden 18 und 19 angeordnet, die an ihren vorderen Enden jeweils Zentrierzapfen aufweisen, die zur Zentrierung der Ösen 16 und 17 dienen und in der Zeichnung nicht erkennbar sind, da sie verhältnismäßig klein sind. Die Schweißelektroden 18 und 19 befinden sich in der Buckelschweißvorrichtung 12, die in Fig. 2 gezeigt ist. In dieser Buckelschweißvorrichtung 12 sind auch Gegenelektroden vorgesehen, die in der Zeichnung nicht dargestellt sind und zur Durchführung des Schweißvorganges von oben jeweils in einen Behälter 9 eingeführt werden, so daß sie dann ein Gegenlager für die Schweißelektroden 18 und 19 darstellen.In Fig. 1 each with the eyelets 16 and 17 and also with the holes in the ends of the handle 13 aligned welding electrodes 18 and 19 are arranged, which have centering pins at their front ends, which serve to center the eyelets 16 and 17 and in the drawing are not recognizable because they are relatively small. The welding electrodes 18 and 19 are located in the projection welding device 12, which is shown in FIG. 2. In this projection welding device 12, counter electrodes are also provided, which are not shown in the drawing and are each introduced from above into a container 9 for carrying out the welding process, so that they then represent a counter bearing for the welding electrodes 18 and 19.

Bei Durchführung des Verfahrens und Betrieb der in den Fig. 1 und 2 dargestellten Vorrichtung wird schrittweise ein Kunststoffband 1 durch die Walzen 2 und 3 in Richtung des Pfeiles 4 in die Ablängeinrichtung 9 geführt, die so an den Enden mit Löchern 7 versehene Henkel 6 erzeugt. Diese werden gebogen und mit ihren Enden in eine Befestigungsposition jeweils zu einem Behälter 9 geführt, der schrittweise durch Transportband 8 herangeführt wird. Von der Reihe von Ösen 14 und 15 wird jeweils eine zu der Befestigungsposition geführt, wo in Fig. 1 gerade die Ösen 16 und 17 dargestellt sind. Dann werden die Schweißelektroden 18 und 19 in Richtung auf den Behälter 9 bewegt, so daß die Ösen 16 und 17 in die damit fluchtenden Löcher in den Henkel 13 bewegt und mit ihren Buckeln gegen die Wandung des Behälters 9 gedrückt werden, wobei die nicht gezeigten Gegenelektroden das Gegenlager bilden. Durch den durchgeleiteten Schweißstrom erfolgt im Bereich der Buckel eine Verschweißung der Ösen 16 bzw. 17 mit dem Behälter 9, ohne daß der Kunststoff des Henkels 13 im Bereich seiner Enden beeinträchtigt wird. Dies vor allem auch deshalb, weil die Schweißelektroden 18 und 19 eine Wärmeableitung und damit Kühlung bewirken. Nach dem Schweißvorgang werden die Schweißelektroden zurückgezogen und die Gegenelektroden aus dem Behälter 9 nach oben bewegt, wonach der Behälter 9 durch das Transportband 8 um einen Schritt in Richtung des Pfeiles 10 (siehe Fig. 2) bewegt wird. Dadurch wird ein weiterer Behälter auf dem Transportband 8 unter die Buckelschweißeinrichtung 12 bewegt und in der beschriebenen Weise mit einem neu zugeführten Henkel versehen.When carrying out the method and operating the device shown in FIGS. 1 and 2, a plastic strip 1 is gradually guided through the rollers 2 and 3 in the direction of arrow 4 into the cutting device 9, which thus produces handles 6 provided with holes 7 at the ends . These are bent and each of their ends in a fastening position to a container 9 which is gradually brought up by conveyor belt 8. Of the row of eyelets 14 and 15, one is guided to the fastening position, where eyelets 16 and 17 are shown in FIG. 1. Then the welding electrodes 18 and 19 are moved in the direction of the container 9, so that the eyelets 16 and 17 into the holes aligned therewith the handle 13 is moved and pressed with its humps against the wall of the container 9, the counter electrodes, not shown, forming the counter bearing. As a result of the passed welding current, the eyes 16 and 17 are welded to the container 9 in the area of the humps without the plastic of the handle 13 being impaired in the area of its ends. This is mainly because the welding electrodes 18 and 19 cause heat dissipation and thus cooling. After the welding process, the welding electrodes are withdrawn and the counter electrodes are moved up out of the container 9, after which the container 9 is moved by one step in the direction of the arrow 10 (see FIG. 2). As a result, another container is moved on the conveyor belt 8 under the hump welding device 12 and provided with a newly supplied handle in the manner described.

Claims (7)

Verfahren zum Anbringen von Henkeln an Behälter aus Metall, dadurch gekennzeichnet, daß
   Henkel (6) aus Kunststoffband (1) mit jeweils an ihren Enden vorgesehenen Löchern (7) in eine für die Befestigung bestimmte Lage in bezug zu aufeinanderfolgenden zugeführten Behältern (9) gebracht werden,
   daß jeweils vor ein Loch (7) eine Öse (16, 17) gebracht wird, deren zylindrischer Teil einen Außendurchmesser entsprechend dem Durchmesser des Loches (7) am Ende des Henkels (13) hat und deren Flansch von dem Behälter weggerichtet ist, und
   daß jeweils die Öse mittels einer vorzugsweise mit einer Zentrierspitze versehenen Schweißelektrode in das benachbarte Loch (7) in den Henkel (13) eingeführt und gegen den Behälter (9) gedrückt wird, während gleichzeitig eine Gegenelektrode an einer Innenwandung des Behälters (9) zur Anlage gebracht und Schweißstrom zur Buckelverschweißung der Ösen (16, 17) mit dem Behälter (9) zugeführt wird.
Method for attaching handles to metal containers, characterized in that
Handles (6) made of plastic tape (1), each with holes (7) provided at their ends, are brought into a position intended for fastening in relation to successive supplied containers (9),
that in front of each hole (7) an eyelet (16, 17) is brought, the cylindrical part of which has an outer diameter corresponding to the diameter of the hole (7) at the end of the handle (13) and whose flange is directed away from the container, and
that in each case the eyelet is inserted into the adjacent hole (7) in the handle (13) and pressed against the container (9) by means of a welding electrode, preferably provided with a centering tip, while at the same time a counter electrode rests against an inner wall of the container (9) brought and welding current for projection welding the eyelets (16, 17) with the container (9) is supplied.
Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Henkel (6, 13) unmittelbar vor dem Anbringen an die Behälter (9) gebildet werden, indem ein Kunststoffband (1) von einer Rolle abgewickelt und entsprechend der Länge der Henkel (6, 13) abgelängt wird und beim oder nach dem Anbringen die Löcher (7) in den Enden der abgelängten, die Henkel (6, 13) bildenden Abschnitte des Kunststoffbandes (1) eingebracht werden.A method according to claim 1, characterized in that the handles (6, 13) immediately before attachment the containers (9) are formed by unwinding a plastic band (1) from a roll and cutting it according to the length of the handle (6, 13) and, during or after the attachment, the holes (7) in the ends of the cut handle (6, 13) forming sections of the plastic band (1) are introduced. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Bildung der Henkel (6, 13) und/oder die Anbringung an die Behälter (9) bei pilgerschrittartiger Bewegung der Henkel (6, 13) und/oder Behälter (9) erfolgt.Method according to claim 1 or 2, characterized in that the formation of the handles (6, 13) and / or the attachment to the containers (9) takes place during pilgrim-like movement of the handles (6, 13) and / or containers (9). Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durch
   Transportmittel zum Transport von Behältern (9) aus Metall in eine Montagestation,
   Transportmittel zum Transport von an ihren Enden jeweils mit Löchern (7) versehenen Henkeln (6, 13) zu der Montagestation,
   Ausrichtmittel zum Ausrichten der Löcher (7) an den Enden der Henkel (6, 13) in eine für die Befestigung bestimmte Lage in bezug zu einem zugeführten Behälter (9),
   Zuführmittel zur Zuführung jeweils einer Öse (16, 17), die ein zylindrisches Teil mit von dem einen Zylinderrand vorstehenden Buckeln und mit an der anderen Seite angeordneten Flansch aufweisen, vor ein Loch (7) am Ende eines Henkels (13),
   Ausrichtmittel zum Ausrichten der Ösen (16, 17), derart, daß sie mit ihrem die Buckel aufweisenden Rand auf den in der Montagestation befindlichen Behälter (9) weisen,
   Schweißelektroden (18, 19), die an ihrem Kontaktende jeweils einen Zapfen zur Zentrierung und Halterung einer Öse (16, 17) aufweisen,
   eine Vorschubeinrichtung zum Vorschub der Schweißelektroden (18, 19) mit einer Öse durch ein Loch (7) an einem Ende des Henkels (13) gegen eine gegenüberliegende Gegenelektrode, und
   Mittel zum Anlegen eines Schweißstromes an die Schweißelektroden (18, 19) und die Gegenelektroden zur Buckelverschweißung von Ösen (16, 17) und Behälter (9).
Device for carrying out the method according to claim 1, characterized by
Transport means for transporting metal containers (9) into an assembly station,
Transport means for transporting handles (6, 13) provided with holes (7) at their ends to the assembly station,
Alignment means for aligning the holes (7) at the ends of the handles (6, 13) in a position intended for fastening in relation to a supplied container (9),
Feeding means for feeding one eyelet (16, 17) each, which have a cylindrical part with bosses protruding from one cylinder edge and with a flange arranged on the other side, in front of a hole (7) at the end of a handle (13),
Alignment means for aligning the eyelets (16, 17) in such a way that their humped edge points towards the container (9) located in the assembly station,
Welding electrodes (18, 19), each having a pin at its contact end for centering and holding an eyelet (16, 17),
a feed device for feeding the welding electrodes (18, 19) with an eyelet through a hole (7) at one end of the handle (13) against an opposite counter electrode, and
Means for applying a welding current to the welding electrodes (18, 19) and the counter electrodes for projection welding of eyelets (16, 17) and containers (9).
Vorrichtung nach Anspruch 4, gekennzeichnet durch
   eine Rolle für einen Wickel von Kunststoffband (1),
   Transportmittel (2,3) zur Zuführung des Kunststoffbandes (1) in eine Ablängeinrichtung (5) zur Erzeugung von Abschnitten entsprechend der Länge der herzustellenden Henkel (6, 13) und
   Mittel zur Erzeugung jeweils eines Loches (7) an den Enden der Abschnitte, um so die Henkel (6, 13) zu erzeugen.
Device according to claim 4, characterized by
a roll for a roll of plastic tape (1),
Transport means (2, 3) for feeding the plastic strip (1) into a cutting device (5) for producing sections corresponding to the length of the handles (6, 13) and
Means for making a hole (7) at each end of the sections so as to produce the handles (6, 13).
Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Transportmittel (2, 3; 8) Pilgerschritte ausführen.Device according to claim 4 or 5, characterized in that the transport means (2, 3; 8) pilgrim steps To run. Vorrichtung nach Anspruch 2 oder 5, dadurch gekennzeichnet, daß die Förderrichtung des Kunststoffbandes (1) quer zur Förderrichtung der Behälter (9) verläuft.Apparatus according to claim 2 or 5, characterized in that the conveying direction of the plastic belt (1) extends transversely to the conveying direction of the containers (9).
EP19930120864 1993-12-24 1993-12-24 Process for attaching handles on metallic containers and apparatus for carrying out this process Expired - Lifetime EP0659539B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59309988T DE59309988D1 (en) 1993-12-24 1993-12-24 Method for attaching handles to metal containers and device for carrying out the method
ES93120864T ES2145760T3 (en) 1993-12-24 1993-12-24 PROCEDURE FOR ATTACHING HANDLES TO METAL CONTAINERS AND DEVICE FOR CARRYING OUT THE PROCEDURE.
EP19930120864 EP0659539B1 (en) 1993-12-24 1993-12-24 Process for attaching handles on metallic containers and apparatus for carrying out this process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19930120864 EP0659539B1 (en) 1993-12-24 1993-12-24 Process for attaching handles on metallic containers and apparatus for carrying out this process

Publications (2)

Publication Number Publication Date
EP0659539A1 true EP0659539A1 (en) 1995-06-28
EP0659539B1 EP0659539B1 (en) 2000-03-22

Family

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EP (1) EP0659539B1 (en)
DE (1) DE59309988D1 (en)
ES (1) ES2145760T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107364150A (en) * 2017-09-15 2017-11-21 湖南锐科机器人技术有限公司 A kind of glue handle reason material conveying firing equipment
CN109332521A (en) * 2018-10-30 2019-02-15 广东旭日电器设备有限公司 A kind of plastic cement handle mounting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB890288A (en) * 1959-07-09 1962-02-28 Wilkie & Paul Ltd Improved method of fixing handles
US3626879A (en) * 1970-05-20 1971-12-14 Raymond A Heisler Apparatus for applying plastic bails to containers
GB2082481A (en) * 1980-08-28 1982-03-10 Nacanco Ltd Application of handles to container bodies
EP0064825A1 (en) * 1981-04-23 1982-11-17 METAL BOX p.l.c. Mounting plastics members in openings in sheet metal members
US4507821A (en) * 1981-08-11 1985-04-02 Superfos Emballage A/S Plastic handle assembly
GB2228465A (en) * 1989-02-11 1990-08-29 E W Bliss Attaching handles to containers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB890288A (en) * 1959-07-09 1962-02-28 Wilkie & Paul Ltd Improved method of fixing handles
US3626879A (en) * 1970-05-20 1971-12-14 Raymond A Heisler Apparatus for applying plastic bails to containers
GB2082481A (en) * 1980-08-28 1982-03-10 Nacanco Ltd Application of handles to container bodies
EP0064825A1 (en) * 1981-04-23 1982-11-17 METAL BOX p.l.c. Mounting plastics members in openings in sheet metal members
US4507821A (en) * 1981-08-11 1985-04-02 Superfos Emballage A/S Plastic handle assembly
GB2228465A (en) * 1989-02-11 1990-08-29 E W Bliss Attaching handles to containers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107364150A (en) * 2017-09-15 2017-11-21 湖南锐科机器人技术有限公司 A kind of glue handle reason material conveying firing equipment
CN107364150B (en) * 2017-09-15 2024-03-15 邵东市邵仙五金工具有限公司 Rubber handle material arranging, conveying and heating equipment
CN109332521A (en) * 2018-10-30 2019-02-15 广东旭日电器设备有限公司 A kind of plastic cement handle mounting device
CN109332521B (en) * 2018-10-30 2024-04-02 广东旭日电器设备有限公司 Plastic handle installation device

Also Published As

Publication number Publication date
ES2145760T3 (en) 2000-07-16
EP0659539B1 (en) 2000-03-22
DE59309988D1 (en) 2000-04-27

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