DE3303092A1 - Welding device - Google Patents

Welding device

Info

Publication number
DE3303092A1
DE3303092A1 DE19833303092 DE3303092A DE3303092A1 DE 3303092 A1 DE3303092 A1 DE 3303092A1 DE 19833303092 DE19833303092 DE 19833303092 DE 3303092 A DE3303092 A DE 3303092A DE 3303092 A1 DE3303092 A1 DE 3303092A1
Authority
DE
Germany
Prior art keywords
welding device
wedge
pressure roller
pressure rollers
rollers
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.)
Withdrawn
Application number
DE19833303092
Other languages
German (de)
Inventor
Gottfried Walter
Herwig Walter
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.)
Bauplast Ges Mbh & Co KG
Original Assignee
Bauplast Ges Mbh & 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 Bauplast Ges Mbh & Co KG filed Critical Bauplast Ges Mbh & Co KG
Publication of DE3303092A1 publication Critical patent/DE3303092A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/203—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being several single mirrors, e.g. not mounted on the same tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/865—Independently movable welding apparatus, e.g. on wheels
    • B29C66/8652—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling
    • B29C66/86521—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling
    • B29C66/86523—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling the traction being made on the seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A welding device for webs or sheets of thermoplastics is described consisting of a pressing device formed by a pressure roller pair with two drivable pressure rollers (7, 7'), which pressing device is held on a holding device which is provided with running rollers if required and also has a wedge-shaped heating body (6) disposed in front of the pressure rollers, the mutual distance of which can be adjusted. So that such a welding device is distinguished by simple design and a problem-free feed of the webs, the two pressure rollers (7, 7') are driven independently of one another, the rotationally fixed connection (9) of one pressure roller (7') to the associated drive (2) extending in a U-shaped manner and the heating wedge (6), which is made of silver, being disposed so as to be displaceable with respect to the pressing device. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Schweißvorrich- The invention relates to a welding device

tung für Bahnen oder Plachen aus thermoplastischem Kunststoff, bestehend aus einer durch ein Druckrollenpaar mit zwei antreibbaren Druckrollen gebildeten Anpreßvorrichtungen, welche an einer gegebenenfalls mit Laufrollen versehenen Halteeinrichtung, die auch einen keilförmigen Heizkörper aufweist, der vor den in ihrem gegenseitigen Abstand veränderbaren Druckrollen angeordnet ist, gehalten ist.device for sheets or tarpaulins made of thermoplastic material, consisting from one formed by a pair of pressure rollers with two drivable pressure rollers Pressure devices, which are attached to a holding device, possibly provided with rollers, which also has a wedge-shaped radiator in front of the in their mutual Distance variable pressure rollers is arranged, is held.

Eine derartige Schweißvorrichtung ist durch die AT-PS 359 277 bekannt geworden. Bei dieser Vorrichtung sind die beiden. Druckrollen der Anpreßvorrichtung lediglich von einem Motor über Getriebe angetrieben, wodurch ein starrer Zusammenhang zwischen den Drehzahlen der beiden Druckrollen gegeben ist. Such a welding device is known from AT-PS 359 277 become. In this device, the two are. Pressure rollers of the pressure device only driven by a motor via a gearbox, creating a rigid relationship between the speeds of the two pressure rollers is given.

Dies führt gelegentlich zu Schwierigkeiten beim Einzug der zu verschweißenden Bahnen, von denen eine über und die andere unter dem Heizkeil geführt ist und durch diesen erwärmt und gemeinsam den Druckrollen zugeführt wird.This occasionally leads to difficulties when pulling in the to be welded Lanes, one of which is passed over and the other under the heating wedge and through this is heated and fed together to the pressure rollers.

Ziel der Erfindung ist es eine Vorrichtung der eingangs erwähnten Art vorzuschlagen, die sich durch eine einfache Konstruktion auszeichnet und die sich durch einen problemlösen Einzug der Bahnen auszeichnet. The aim of the invention is a device of the type mentioned at the beginning To propose kind, which is characterized by a simple construction and which is characterized by a problem-free pulling in of the webs.

Erfindungsgemäß wird dies dadurch erreicht, daß beide Druckrollen unabhängig voneinander angetrieben sind, wobei die drehfeste Verbindung von der einen Druckrolle zum zugeordneten Antrieb U-förmig verläuft, wobei der, vorzugsweise aus Silber hergestellte Heizkeil gegebenenfalls gegenüber der Anpreßvorrichtung verschiebbar angeordnet ist. Auf diese Weise ergibt sich eine einfache Konstruktion und durch den voneinander unabgängigen Antrieb der beiden Druckrollen ist es möglich diese mit einer geringen Geschwindigkeitsdifferenz, die je nach den zu verschweißenden Bahnen verschieden sein kann, zu betreiben, wodurch sich der Einzug der Bahnen wesentlich erleichtert. Außerdem ergeben sich durch die verschiebbare Anordnung des Heizkeils Erleichterungen beim Einlegen der Folien zu Beginn der Schweißung, wobei sich bei Verwendung von Silber für die Herstellung des Heizkeils der Vorteil ergibt, daß ein solcher für sämtliche schweißbaren Folien und Bahnen geeignet ist. According to the invention this is achieved in that both pressure rollers are driven independently, the non-rotatable connection of the a pressure roller for the associated drive runs in a U-shape, the, preferably Hot wedge made of silver, if necessary opposite the pressing device is arranged displaceably. This results in a simple construction and thanks to the independent drive of the two pressure rollers, it is possible these with a small speed difference, which depends on the to be welded Railways can be different to operate, whereby the collection of the railways is essential relieved. Also surrendered due to the sliding arrangement the hot wedge makes it easier to insert the foils at the beginning of the welding process, with the advantage of using silver for the manufacture of the hot wedge shows that it is suitable for all weldable foils and webs.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß die U-förmig verlaufende drehfeste Verbindung der einen Druckrolle mit dem zugeordneten Antrieb durch eine in einem U-förmig gebogenen Rohr geführte biegsame Welle gebildet ist, wobei das U-förmig gebogene Rohr vorzugsweise über eine vertikale Schwenkachse sowie eine lösbare Arretierung mit der Halteeinrichtung verbunden und zwischen dem Antrieb und der biegsamen Welle eine lösbare Kupplung vorgesehen ist, wodurch sich eine besondere einfache Konstruktion ergibt und sich im Falle einer schwenkbaren Halterung des U-förmigen Rohres das Einlegen der Folien besonders einfach gestaltet. According to a further feature of the invention it is provided that the U-shaped non-rotatable connection of one pressure roller with the associated one Drive formed by a flexible shaft guided in a U-shaped bent tube is, wherein the U-shaped tube is preferably bent over a vertical pivot axis and a releasable lock connected to the holding device and between the Drive and the flexible shaft a releasable coupling is provided, whereby a particularly simple construction results and in the case of a pivotable Holder of the U-shaped tube, the insertion of the foils is made particularly easy.

Bei einem bevorzugten Ausführungsbeispiel der Erfindung ist vorgesehen, daß der Antrieb jeder Druckrolle durch einen eigenen Motor gebildet ist, von denen vorzugsweise mindestens einer in seiner Drehzahl regelbar ist. Es ist aber auch möglich, nur einen Motor und ein Abzweigegetriebe vorzusehen, von dem ein Abtrieb allein in seiner Ubersetzung veränderbar ist. In a preferred embodiment of the invention it is provided that the drive of each pressure roller is formed by its own motor, of which preferably at least one is controllable in its speed. It is also possible to provide only one motor and one branch gear, one of which is an output can only be changed in its translation.

Zur Erzielung einer besonders guten Verschweißung der Bahnen kann vorgesehen sein, daß die obere Druckwelle eine leicht bombierte Mantelfläche aufweist, wodurch ein besonders hoher Anpreßdruck erreichbar ist. To achieve a particularly good welding of the webs can it should be provided that the upper pressure wave has a slightly cambered outer surface, whereby a particularly high contact pressure can be achieved.

Besonders zweckmäßig ist es, wenn der Heizkeil zwei unterschiedliche Heizkreise aufweist, von denen der leistungsschwächere in der von den Druckrollen entfernteren ruheste nc und der leistungsstärkere Heizkreis in der an die Druckrollen angenäherten Arbeitsstellung des Heizkeiles aktiviert ist. wodurch eine Uberhitzung des Heizkeils sicher vermieden wird. It is particularly useful if the hot wedge is two different Has heating circuits, of which the less powerful in that of the pressure rollers more distant quietest nc and the more powerful heating circuit in the one on the pressure rollers approximate working position of the hot wedge is activated. causing overheating of the hot wedge is safely avoided.

Die Erfindung wird nun an Hand der Zeichnung näher erläutert. Dabei zeigen Fig. 1 schematisch den Einzug der zu verschweißenden Bahnen, Fig. 2 und 3 Auf- und Seitenriß, sowie Fig. The invention will now be explained in more detail with reference to the drawing. Included Fig. 1 schematically shows the drawing-in of the webs to be welded, Figs. 2 and 3 Elevation and side elevation, as well as Fig.

eine Stirnansicht einer erfindungsgemäßen Schweißvorrichtung.an end view of a welding device according to the invention.

Wie aus Fig. 1 ersichtlich, liegt die eine sich im wesentlichen vor der Zeichenebene erstreckenden Bahn A oben auf dem Heizkeil 21 und einem U-förmig gebogenenen Rohr 10 auf, wogegen die sich hinter der Zeichenebene erstreckende Bahn B unten an dem Heizkeil 6 anliegt. Unmittelbar nach dem Heizkeil 6 laufen die beiden durch diesen erwärmten Bahnen zwischen den beiden Druckrollen 7,7a hindurch und werden unter Druck verschweißt. As can be seen from Fig. 1, there is essentially one the plane of the drawing extending path A on top of the heating wedge 21 and a U-shaped curved tube 10, whereas the path extending behind the plane of the drawing B rests against the heating wedge 6 at the bottom. Immediately after the hot wedge 6, the two run through this heated webs between the two pressure rollers 7,7a and are welded under pressure.

Auf der Halteeinrichtung 1 sind zwei Motore 2 und 3 montiert, die über je ein Getriebe 5,6 mit der oberen bzw. der unteren Druckrolle 7 bzw. 7' verbunden sind. Im Falle der oberen Druckrolle 7 erfolgt die Verbindung über eine starre Welle, wogegen die Verbindung der unteren Druckrolle 7' mit dem Getriebe 5 über eine lösbare Kupplung 8 und eine biegsame Welle 9 erfolgt, die in einem U-förmig gebogenen Rohr 10 geführt ist. On the holding device 1, two motors 2 and 3 are mounted, the Connected via a gear 5, 6 to the upper and lower pressure rollers 7 and 7 ', respectively are. In the case of the upper pressure roller 7, the connection is made via a rigid shaft, whereas the connection of the lower pressure roller 7 'with the gear 5 via a detachable one Coupling 8 and a flexible shaft 9 takes place in a U-shaped bent tube 10 is performed.

Dieses gebogene Rohr 10 weist einen mit in Umfangsrichtung verlaufenden Schlitzen 11 versehenen Flansch 12 mit Zentriering 13 auf, wobei die Schlitze 11 von Schrauben 14 durchsetzt sind und der Zentrierring 13 in einer Platte 15 gelagert ist. Diese Platte 15 weist Arme 16 auf, die von einer Schwenkachse 17 durchsetzt sind, und kann daher um die letztere verschwenkt werden, wodurch auch das Rohr 10 mit verschwenkt werden kann. This bent tube 10 has a circumferential direction Flange 12 provided with slots 11 with centering ring 13, the slots 11 are penetrated by screws 14 and the centering ring 13 is mounted in a plate 15 is. This plate 15 has arms 16 through which a pivot axis 17 passes are, and can therefore be pivoted about the latter, whereby the tube 10 can be pivoted with.

Zur Arretierung der Platte 15 ist diese mit Laschen 18 versehen, in die ein Arretierstift 19, der auch an der Halteeinrichtung 1 angebrachte Laschen 20 durchsetzt, bzw. in diese einsetzbar ist. To lock the plate 15, it is provided with tabs 18, into which a locking pin 19, the tabs also attached to the holding device 1 20 penetrated, or can be used in this.

Der vorzugsweise aus Silber hergestellte Heizkeil 21 ist aus seiner in Fig. 2 strichliert dargestellten Ruhestellung in seine in Fig. 2 und 3 mit vollen Strichen dargestellte Arbeitsstellung verschiebbar, wobei der Heizkeil 21 mit seinem Haltearm 22 in einem Schlitz 23 gleitet. Der Heizkeil 21 weist zwei Heizkreise mit unterschiedlicher Leistung auf und betätigt in seiner Arbeitsstellung einen Schalter 24, der den leistungsstärkeren Heizkreis aktiviert, solange dieser Schalter 24 gedrückt ist. The heating wedge 21, which is preferably made of silver, is made of his in Fig. 2 by dashed lines in its rest position in Fig. 2 and 3 with full Lines shown working position displaceable, the heating wedge 21 with his Holding arm 22 slides in a slot 23. The heating wedge 21 has two heating circuits different power and operates a switch in its working position 24, which activates the more powerful heating circuit as long as this switch 24 is pressed is.

Zur Verschiebung des Heizkeils 21 ist ein Hebel 25 vorgesehen, der in der Halteinrichtung 1 gelagert und mit einer Kurbelstange 26 verbunden ist, die ihrerseits mit dem Haltearm 22 des Heizkeils 21 verbunden ist. Der Hebel 25 ist durch die Feder 27 gegen die Ruhestellung des Heizkeils 21 vorgespannt und mittels der Arretierung 28 in seiner der Arbeitsstellung des Heizkeils 21 entsprechenden Lage fixierbar. To move the heating wedge 21, a lever 25 is provided which stored in the holding device 1 and connected to a connecting rod 26 which is in turn connected to the holding arm 22 of the heating wedge 21. The lever 25 is biased by the spring 27 against the rest position of the heating wedge 21 and means the lock 28 in its working position of the hot wedge 21 corresponding Fixable position.

Die zwischen dem Getriebe 5 und der biegsamen Welle 9 angeordnete Kupplung 8 ist mittels des Hebels 29 aus- und einrückbar. The arranged between the gear 5 and the flexible shaft 9 Clutch 8 can be disengaged and engaged by means of lever 29.

Die untere Druckrolle 7' ist mit einem Achsstummel versehen, der in einer das U-förmige Rohr 10 abschließenden Platte gelagert und mit der biegsamen Welle 9 verbunden ist. The lower pressure roller 7 'is provided with a stub axle that mounted in a U-shaped tube 10 closing plate and with the flexible Shaft 9 is connected.

Die Verstellung des gegenseitigen Abstandes der Druckrollen 7,7' erfolgt durch Lockern der Schrauben 14 und Verdrehen des Rohres 10 um die Achse des Zentrierringes 13 des Flansches 12. The adjustment of the mutual distance between the pressure rollers 7.7 ' takes place by loosening the screws 14 and rotating the tube 10 about the axis of the centering ring 13 of the flange 12.

Um den Vorschub der Schweißvorrichtung zu erleichtern ist die Halteeinrichtung mit Rollen 30 versehen. Außerdem weist die Halteeinrichtung 1 eine Führungsschiene 31 auf, die als Anschlag für die Bahn A dient. The holding device is used to facilitate the advance of the welding device provided with rollers 30. In addition, the holding device 1 has a guide rail 31, which serves as a stop for web A.

Zur Regelung der Drehzahl des Motors 2 ist eine eine Regeleinrichtung 32 mit Stellknopf 33 vorgesehen. A control device is used to regulate the speed of the motor 2 32 with adjusting knob 33 is provided.

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Claims (5)

Titel: Schweißvorrichtung P a t e n t a n 5 p r ü c h e: fA (1. Schweißvorrichtung für Bahnen oder Plachen aus thermoplastischem Kunststoff, bestehend aus einer durch ein Druckrollenpaar mit zwei antreibbaren Druckrollen gebildeten Anpreßvorrichtung, welche an einer gegebenenfalls mit Laufrollen versehenen Halteeinrichtung, die auch einen keilförmigen Heizkörper aufweist, der vor den in ihrem gegenseitigen Abstand veränderbaren Druckrollen angeordnet ist, gehalten ist, dadurch gekennzeichnet, daß die beiden Druckrollen (7,7') unabhängig voneinander angetrieben sind, wobei die drehfeste Verbindung von der einen Druckrolle (7') zum zugeordneten Antrieb (2) U-förmig verläuft, wobei der, vorzugsweise aus Silber hergestellte Heizkeil (6) gegebenenfalls gegenüber der Anpreßvorrichtung verschiebbar angeordnet ist.Title: Welding device P a t e n t a n 5 p r ü c h e: fA (1st welding device for sheets or tarpaulins made of thermoplastic material, consisting of a through a pressure roller pair with two drivable pressure rollers formed pressing device, which on a holding device optionally provided with rollers, which also has a wedge-shaped radiator in front of the in their mutual distance changeable pressure rollers is arranged, is held, characterized in, that the two pressure rollers (7,7 ') are driven independently of one another, wherein the non-rotatable connection from one pressure roller (7 ') to the associated drive (2) runs in a U-shape, with the heating wedge, preferably made of silver (6) is optionally arranged to be displaceable relative to the pressing device. - la -. - la -. 2. Schweißvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die U-förmig verlaufende drehfeste Verbindung der einen Druckrolle (7') mit dem zugeordneten Antrieb (2) durch eine in einem U-förmig gebogenen Rohr (10) geführte biegsame Welle (9) gebildet ist, wobei das U-förmig gebogene Rohr (10) vorzugsweise über eine vertikale Schwenkachse (17) sowie eine lösbare Arretierung mit der Halteeinrichtung (1) verbunden und zwischen dem Antrieb und der biegsamen Welle (9) eine lösbare Kupplung (8) vorgesehen ist. 2. Welding device according to claim 1, characterized in that the U-shaped non-rotatable connection of a pressure roller (7 ') with the associated drive (2) guided by a tube (10) bent in a U-shape flexible shaft (9) is formed, wherein the U-shaped bent tube (10) is preferably Via a vertical pivot axis (17) and a releasable lock with the holding device (1) connected and a detachable one between the drive and the flexible shaft (9) Coupling (8) is provided. 3. Schweißvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Antrieb jeder Druckrolle (7,7') durch einen eigenen Motor (2,3) gebildet ist, von denen vorzugsweise mindestens einer in seiner Drehzahl regelbar ist. 3. Welding device according to claim 1 or 2, characterized in that that the drive of each pressure roller (7,7 ') is formed by its own motor (2,3) is, of which at least one is preferably adjustable in its speed. 4.Schweißvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die obereDruckrolle (7) eine leicht bombierte Mantelfläche aufweist.4. Welding device according to one of claims 1 to 3, characterized in that that the upper pressure roller (7) has a slightly cambered outer surface. 5. Schweißvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Heizkeil (6) zwei unterschiedliche Heizkreise aufweist, von denen der leistungsschwächere in der von den Druckrollen (7,7') entfernteren Ruhestellung und der leistungsstärkere Heizkreis in der an die Druckrollen angenäherten Arbeitsstellung des Heizkeiles aktiviert ist.5. Welding device according to claim 1, characterized in that the heating wedge (6) has two different heating circuits, of which the less powerful one in the rest position further away from the pressure rollers (7,7 ') and the more powerful Heating circuit in the working position of the heating wedge that is closer to the pressure rollers is activated.
DE19833303092 1982-01-29 1983-01-31 Welding device Withdrawn DE3303092A1 (en)

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AT0033982A AT385719B (en) 1982-01-29 1982-01-29 WELDING DEVICE

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DE3303092A1 true DE3303092A1 (en) 1983-10-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571304A1 (en) * 1984-10-04 1986-04-11 Neumueller Walter Sealing appts. for plastics sheets comprising opposed rollers
DE3535759A1 (en) * 1984-11-13 1986-05-15 Friedrich Liebl WELDING MACHINE
DE3535760A1 (en) * 1984-11-13 1986-05-15 Friedrich Liebl WELDING MACHINE
AT394678B (en) * 1990-01-25 1992-05-25 Neumueller Walter Dkfm Ing WELDING MACHINE FOR WELDING PLASTIC FILMS
CN106863814A (en) * 2016-02-18 2017-06-20 莱丹科技股份公司 Automatic welding machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT392607B (en) * 1989-06-29 1991-05-10 Isochemie Ag DEVICE FOR WELDING PLASTIC RAILS
AT392912B (en) * 1989-12-27 1991-07-10 Waagner Biro Ag Method of preventing the formation of organic pollutants such as dioxin and/or furan

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH618627A5 (en) * 1976-12-22 1980-08-15 Sarna Kunststoff Ag Welding device for welding plastic webs
AT359277B (en) * 1978-07-20 1980-10-27 Winkler Werner WELDING DEVICE FOR RAILWAYS OR TILES FROM THERMOPLASTIC PLASTIC

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571304A1 (en) * 1984-10-04 1986-04-11 Neumueller Walter Sealing appts. for plastics sheets comprising opposed rollers
DE3535759A1 (en) * 1984-11-13 1986-05-15 Friedrich Liebl WELDING MACHINE
DE3535760A1 (en) * 1984-11-13 1986-05-15 Friedrich Liebl WELDING MACHINE
FR2572997A1 (en) * 1984-11-13 1986-05-16 Neumueller Walter WELDING APPARATUS FOR WELDING SHEETS OF PLASTIC MATERIAL
FR2572998A1 (en) * 1984-11-13 1986-05-16 Neumueller Walter WELDING APPARATUS FOR WELDING SHEETS OF PLASTIC MATERIAL
AT394678B (en) * 1990-01-25 1992-05-25 Neumueller Walter Dkfm Ing WELDING MACHINE FOR WELDING PLASTIC FILMS
CN106863814A (en) * 2016-02-18 2017-06-20 莱丹科技股份公司 Automatic welding machine
EP3208072A1 (en) * 2016-02-18 2017-08-23 Leister Technologies AG Automatic welding machine
US10040248B2 (en) 2016-02-18 2018-08-07 Leister Technologies Ag Automatic welding machine
CN106863814B (en) * 2016-02-18 2018-12-11 莱丹科技股份公司 Automatic welding machine

Also Published As

Publication number Publication date
AT385719B (en) 1988-05-10
ATA33982A (en) 1987-10-15

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