DE1052106B - Welding device for joining thermoplastic materials - Google Patents

Welding device for joining thermoplastic materials

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Publication number
DE1052106B
DE1052106B DEB37445A DEB0037445A DE1052106B DE 1052106 B DE1052106 B DE 1052106B DE B37445 A DEB37445 A DE B37445A DE B0037445 A DEB0037445 A DE B0037445A DE 1052106 B DE1052106 B DE 1052106B
Authority
DE
Germany
Prior art keywords
welding device
spindle
electrode
switch
actuated
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.)
Pending
Application number
DEB37445A
Other languages
German (de)
Inventor
Rolf Schnause
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.)
FIBRIT WERK LUENEBURG GmbH
Original Assignee
FIBRIT WERK LUENEBURG GmbH
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 FIBRIT WERK LUENEBURG GmbH filed Critical FIBRIT WERK LUENEBURG GmbH
Priority to DEB37445A priority Critical patent/DE1052106B/en
Publication of DE1052106B publication Critical patent/DE1052106B/en
Pending legal-status Critical Current

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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
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C66/81—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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—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 mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8187—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects
    • B29C66/81871—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects of the welding jaws

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

Description

DEUTSCHESGERMAN

Die Erfindung betrifft eine Schweißvorrichtung zum Verbinden von thermoplastischen Stoffen auf dielektrischem Wege im hochfrequenten elektrischen Wechselfeld.The invention relates to a welding device for joining thermoplastic materials dielectric path in a high-frequency alternating electric field.

Hochfrequenz-Schweißanlagen zum Verbinden von dielektrischen Materialien durch Erwärmen im hochfrequenten Feld eines Kondensators, von dem mindestens eine Elektrode beweglich angeordnet ist, sind bekannt. Bei diesen bekannten Anlagen ist eine starr mit der oberen Elektrode verbundene Stange in Lagern angeordnet, in denen sie sich auf und/nieder bewegen kann; im übrigen ist diese auf und nieder bewegliche Elektrode völlig starr aufgehängt.High-frequency welding systems for joining dielectric materials by heating in high-frequency Field of a capacitor, of which at least one electrode is movably arranged, are known. In these known systems, a rod rigidly connected to the upper electrode is in Camps arranged in which they can move up and / down; otherwise it is up and down movable electrode suspended completely rigid.

Von diesen bekannten Hochfrequenz-Schweißanlagen unterscheidet sich die Schweißvorrichtung nach der Erfindung vorteilhaft dadurch, daß die Elektrode federnd aufgehängt ist. Durch diese federnde x\ufhängung wird eine allseitige Beweglichkeit erreicht, die eine gleichmäßige Druckverteilung der Elektrode auf das Schweißgut, eine Voraussetzung für einwandfreie Schweißungen, garantiert.From these known high-frequency welding systems, the welding device differs according to Invention advantageous in that the electrode is resiliently suspended. Through this resilient suspension all-round mobility is achieved, which ensures an even pressure distribution of the electrode guaranteed on the weld metal, a prerequisite for perfect welds.

Bei einer bevorzugten Ausführungsform einer Schweißvorrichtung nach der Erfindung ist eine Gummifeder oder mehrere in dem glockenförmig ausgebildeten Elektrodenkopf angeordnet.In a preferred embodiment of a welding device according to the invention is a Rubber spring or several arranged in the bell-shaped electrode head.

Da das Gelenk für die Beweglichkeit der Elektrode und die Feder ein Element sind, wird der Aufbau des Elektrodenkopfes außerordentlich vereinfacht. Während des Schweißvorganges wird das Schweißgut teigig, und es ist wichtig, daß der Druck auf diese teigige Masse erhalten bleibt. Nur dadurch gibt es eine innige Verbindung der beiden miteinander zu verschweißenden Folien. Da der gesamte Schweißvorgang innerhalb von Sekunden beendet sein muß, fließen und verbinden sich die beiden Folien innerhalb von Bruchteilen von Sekunden, d. h., daß die Elektrode blitzschnell nachdrücken muß. Nur dadurch läßt sich erreichen, daß die Schweißnaht eine Reißkante bekommt, mit der man das geschweißte Gut vom überstehenden Material abreißen kann. Um diese Funktion zu garantieren, ist es wichtig, daß die Masse zwischen Feder und Schweißgut bzw. Elektrode möglichst klein gehalten wird, was durch die Vereinigung des Gelenkes mit der Feder durch die vorgeschlagene Gummifeder auf einfachste Weise er- 4-5 reicht wird.Since the joint for the mobility of the electrode and the spring are one element, the structure the electrode head is extremely simplified. During the welding process, the weld metal is doughy, and it is important that the pressure on this doughy mass is maintained. This is the only way there is an intimate connection between the two foils to be welded together. Because the entire welding process must be completed within seconds, the two foils flow and connect within of fractions of a second, d. This means that the electrode has to push in at lightning speed. Just because of that it can be achieved that the weld seam has a tear edge with which the welded material can be removed can tear off the protruding material. To guarantee this function, it is important that the The mass between the spring and the weld metal or electrode is kept as small as possible, which is achieved by the Combination of the joint with the spring by the proposed rubber spring in the simplest way possible 4-5 is enough.

Nach einem besonderen Merkmal der Erfindung ist mindestens eine Gummifeder in Form eines konischen Ringes um einen Dorn angeordnet.According to a special feature of the invention, at least one rubber spring is in the form of a conical Ring arranged around a mandrel.

Bei Verwendung mehrerer Gummifedern können die diese tragenden Dorne an ihren aneinanderstoßenden Enden kalottenförmig ausgebildet sein. Dadurch wird bewirkt, daß die untere der Federn in allen Richtungen nachgeben kann, so daß bei einer Schweißvorrichtung zum Verbinden
von thermoplastischen StoffenIf several rubber springs are used, the spikes carrying these can be designed in the shape of a dome at their abutting ends. This has the effect that the lower one of the springs can yield in all directions, so that in a welding device for joining
of thermoplastic materials

Anmelder:Applicant:

Fibrit-Werk Lüneburg G.m.b.H.,
Lüneburg, Goseburgstr. 1Fibrit-Werk Lüneburg GmbH,
Lüneburg, Goseburgstr. 1

Rolf Schnause, Lüneburg,
ist als Erfinder genannt wordenRolf Schnause, Lüneburg,
has been named as the inventor

verschieden hohe Elektrode die Platte sich trotz dieser Unebenheit glatt auflegen kann und damit eine gleichmäßige Druckverteilung gewährleistet ist. Bei dieser Aufhängung »schwimmt« die Elektrode gleichsam. different high electrode the plate can lay down smoothly despite this unevenness and thus a even pressure distribution is guaranteed. With this suspension, the electrode "floats" as it were.

Vorteilhafterweise wird durch die federnde Aushängung der beweglichen Elektrode ein Schaltkonus od. dgl. betätigt, der über einen Schalter und ein Relais die Bewegung der Elektrode steuert.The resilient suspension of the movable electrode advantageously creates a switching cone or the like, which controls the movement of the electrode via a switch and a relay.

Vorzugsweise erfolgt die Übertragung der Federwirkung mittels einer in einer zweckmäßig hohlen Arbeitsspindel vorgesehenen Welle auf den Schaltkonus. Dabei kann der Schaltkonus auf der Welle verstellbar sein.The spring action is preferably transmitted by means of an expediently hollow one Work spindle provided shaft on the switching cone. The switching cone can be placed on the shaft be adjustable.

Die erfindungsgemäße Vorrichtung hat noch den Vorteil, daß der Preßdruck in sehr einfacher Weise eingestellt werden kann; es braucht nämlich nur die Federkraft geändert zu werden, um eine Veränderung des Preßdrucks zu bewirken. Mit der erfindungsgemäßen Vorrichtung können Preß drücke von 2 t und darüber eingestellt werden, während der Preßdruck bei den üblichen Vorrichtungen 200 bis 300 kg nicht übersteigt.The device according to the invention also has the advantage that the pressure is applied in a very simple manner can be adjusted; it only needs to change the spring force to make a change to effect the pressing pressure. With the device according to the invention press can press of 2 t and above can be set, while the pressure in the usual devices 200 to Does not exceed 300 kg.

Mit Vorteil sind an der beweglichen Elektrode oder der Isolierplatte Sicherheitsschalter vorgesehen, die beim Verkanten der Elektrode derart in Funktion treten, daß eine Aufwärtsbewegung der Spindel erfolgt. Wenn also die Bedienungsperson einmal eine Elektrode falsch eingesetzt hat, so wird der Schweißvorgang nicht ausgeführt, die Elektrode vielmehr nach oben gefahren, und weitere Betriebsstörungen werden vermieden. Zweckmäßigerweise ist an jeder Ecke der Platte ein Sicherheitsschalter vorgesehen.Safety switches are advantageously provided on the movable electrode or the insulating plate, which when tilting the electrode come into operation in such a way that an upward movement of the spindle takes place. So if the operator has once incorrectly inserted an electrode, the welding process will cease not carried out, the electrode moved upwards, and other malfunctions are avoided. A safety switch is expediently provided at each corner of the plate.

Die Sicherheitsschalter können an mittels einer Schelle an der Glocke befestigten Armen angeordnet sein und beim Verkanten der Elektrode durch einen an der Isolierplatte vorgesehenen einstellbaren KnopfThe safety switches can be arranged on arms attached to the bell by means of a clamp and when tilting the electrode by an adjustable button provided on the insulating plate

809 768/488809 768/488

Claims (9)

oder mehrere betätigt werden. Dabei ist vorzugsweise die Distanz zwischen den Knöpfen und den Sicherheitsschaltern gleich der maximalen Durchfederung. Damit ist gleichzeitig eine Sicherung gegen Versagen des durch den Schaltkonus betätigten Schalters gegeben. Eine Ausführungsform einer Schweißvorrichtung nach der Erfindung ist beispielsweise in der Zeichnung dargestellt. Fig. 1 zeigt einen Mittelschnitt durch eine Schweißvorrichtung, wobei der Preßkopf in Ausgangsstellung steht; Fig. 2 zeigt den Schnitt nach Fig. 1, wobei der Preßkopf in Arbeitsstellung steht; Fig. 3 zeigt die Anordnung des Sicherheitsschalter an der Ecke der Preßkopfplatte in perspektivischer Darstellung; Fig. 4 zeigt einen Schnitt A-B der Fig. 3. Eine bewegliche Elektrode ist über eine isolierende Luftschicht 2 und eine Isolierplatte 3 mit einem Kopf 4 verbunden. Durch diese Anordnung werden Spannungsverluste weitgehend vermieden. Der Kopf ist glockenförmig ausgebildet und enthält im Innern zwei Gummifedern 5, 6, die als konische Ringfedern um zwei Dorne 7, 8 angeordnet sind. Die Dorne 7, 8 sind an ihren aneinandergrenzenden Enden 9, 10 kalottenförmig ausgebildet. Die Durchfederung der Gummifedern 5., 6 wird mittels einer in einer hohlen Spindel 11 vorgesehenen Welle 12 auf einen Schaltkonus 13 übertragen, durch den ein Schalter 14 betätigt wird, wodurch über ein nicht dargestelltes Relais die Auf- und Abwärtsbewegung der Spindel gesteuert wird. Die Spindel 11 wird durch ein Antriebsritzel betätigt, das ein an einer Spindelmutter 15 befestigtes Kronenrad 16 antreibt. Die Spindelmutter 15 ist mittels zweier Längslager 17,18 fixiert, während die Spindel 11 mit einem Längsschlitz 19 versehen und mittels eines Keiles 20 gegen Verdrehung gesichert ist. Auf der Spindel 11, die mit Gewinde versehen ist, ist ferner ein Nocken 21 vorgesehen, durch den ein Schalter 22 betätigt wird, der über ein in der Höhe verstellbares Relais die Aufwärtsbewegung der Spindel begrenzt. Diese Stellung des Nockens 21 ist in Fig. 2 gestrichelt dargestellt. Die Elektrode 1 ist durch Sicherheitsschalter 23, die an allen vier Ecken der Platte vorgesehen sind, gegen Verkanten gesichert, wie insbesondere aus Fig. 3 und 4 zu ersehen ist. Wie in Fig. 1 und 2 dargestellt ist, können die Sicherheitsschalter 23 auch an mittels einer Schelle 24 an der Glocke 4 befestigten Armen 25 angeordnet sein. An der Isolierplatte 3 ist ein einstellbarer, zweckmäßig unter Federspannung gehaltener Knopf oder mehrere vorgesehen, durch den bzw. die die Sicherheitsschalter 23 betätigt werden. Patentansprüche:or several are operated. The distance between the buttons and the safety switches is preferably equal to the maximum deflection. This also provides a safeguard against failure of the switch actuated by the switching cone. An embodiment of a welding device according to the invention is shown for example in the drawing. 1 shows a central section through a welding device, the press head being in the starting position; FIG. 2 shows the section according to FIG. 1, the press head being in the working position; Fig. 3 shows the arrangement of the safety switch at the corner of the press head plate in a perspective view; Fig. 4 shows a section A-B of Fig. 3. A movable electrode is connected to a head 4 via an insulating air layer 2 and an insulating plate 3. This arrangement largely avoids voltage losses. The head is bell-shaped and contains two rubber springs 5, 6 inside, which are arranged as conical ring springs around two mandrels 7, 8. The mandrels 7, 8 are formed at their adjoining ends 9, 10 in the shape of a dome. The deflection of the rubber springs 5, 6 is transmitted by means of a shaft 12 provided in a hollow spindle 11 to a switching cone 13, by means of which a switch 14 is actuated, whereby the up and down movement of the spindle is controlled via a relay (not shown). The spindle 11 is actuated by a drive pinion which drives a crown wheel 16 fastened to a spindle nut 15. The spindle nut 15 is fixed by means of two longitudinal bearings 17, 18, while the spindle 11 is provided with a longitudinal slot 19 and secured against rotation by means of a wedge 20. On the spindle 11, which is provided with a thread, a cam 21 is also provided, by means of which a switch 22 is actuated, which limits the upward movement of the spindle via a height-adjustable relay. This position of the cam 21 is shown in dashed lines in FIG. The electrode 1 is secured against tilting by safety switches 23, which are provided at all four corners of the plate, as can be seen in particular from FIGS. 3 and 4. As shown in FIGS. 1 and 2, the safety switches 23 can also be arranged on arms 25 fastened to the bell 4 by means of a clamp 24. Provided on the insulating plate 3 is an adjustable button or buttons which are expediently held under spring tension and by means of which the safety switch 23 is actuated. Patent claims: 1. Schweißvorrichtung zum Verbinden von thermoplastischen Stoffen auf dielektrischem Wege im hochfrequenten elektrischen Wechselfeld, dadurch gekennzeichnet, daß die Elektrode (1) federnd aufgehängt ist.1. Welding device for joining thermoplastic materials on dielectric Paths in the high-frequency alternating electric field, characterized in that the electrode (1) is resiliently suspended. 2. Schweißvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine Gummifeder (5) oder mehrere in dem glockenförmig ausgebildeten Elektrodenkopf (4) angeordnet ist bzw. sind.2. Welding device according to claim 1, characterized in that a rubber spring (5) or more is or are arranged in the bell-shaped electrode head (4). 3. Schweißvorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß mindestens eine Gummifeder (5) in Form eines konischen Ringes um einen Dorn (7) angeordnet ist.3. Welding device according to claim 1 and 2, characterized in that at least one Rubber spring (5) is arranged in the form of a conical ring around a mandrel (7). 4. Schweiß Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß durch die federnde Aufhängung der beweglichen Elektrode (1) ein Schaltkonus (13) od. dgl. betätigt wird, der über einen Schalter (14) und ein Relais die Bewegung der Elektrode steuert.4. Welding device according to claim 1 to 3, characterized in that by the resilient Suspension of the movable electrode (1), a switching cone (13) or the like. Is operated via a switch (14) and a relay controls the movement of the electrode. 5. Schweißvorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Übertragung der Federwirkung mittels einer in einer zweckmäßig hohlen Arbeitsspindel (11) vorgesehenen Welle (12) auf den Schaltkonus (13) erfolgt.5. Welding device according to claim 1 to 4, characterized in that the transmission of the Spring action by means of a shaft provided in an expediently hollow work spindle (11) (12) on the switching cone (13) takes place. 6. Schweißvorrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß der Schaltkonus (13) auf der Welle (12) verstellbar ist.6. Welding device according to claim 1 to 5, characterized in that the switching cone (13) is adjustable on the shaft (12). 7. Schweißvorrichtung nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß an der beweglichen Elektrode (1) oder der Isolierplatte (3) Sicherheitsschalter (23) vorgesehen sind, die beim Verkanten der Elektrode derart in Funktion treten, daß eine Aufwärtsbewegung der Spindel erfolgt.7. Welding device according to claim 1 to 6, characterized in that on the movable Electrode (1) or the insulating plate (3) safety switch (23) are provided, which when tilted the electrode come into operation in such a way that an upward movement of the spindle takes place. 8. Schweißvorrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß die Sicherheitsschalter (23) an mittels einer Schelle (24) an der Glocke (4) befestigten Armen (25) angeordnet sind und beim Verkanten der Elektrode (1) durch einen an der Isolierplatte (3) vorgesehenen einstellbaren Knopf (26) oder mehrere betätigt werden.8. Welding device according to claim 1 to 7, characterized in that the safety switch (23) on by means of a clamp (24) on the Bell (4) attached arms (25) are arranged and when tilting the electrode (1) by a on the insulating plate (3) provided adjustable button (26) or several can be operated. 9. Schweißvorrichtung nach Anspruch 1 bis 8, dadurch gekennzeichnet, daß die Distanz zwischen den Knöpfen (26) und den Sicherheitsschaltern (23) gleich der maximalen Durchfederung ist.9. Welding device according to claim 1 to 8, characterized in that the distance between the buttons (26) and the safety switches (23) is equal to the maximum deflection. In Betracht gezogene Druckschriften:
Deutsche Patentschriften Nr. 821 842, 845 263;
schweizerische Patentschrift Nr. 270100.Considered publications:
German Patent Nos. 821 842, 845 263;
Swiss patent specification No. 270100. Hierzu 1 Blatt Zeichnungen1 sheet of drawings ©809 768/488 2.59© 809 768/488 2.59
DEB37445A 1955-10-07 1955-10-07 Welding device for joining thermoplastic materials Pending DE1052106B (en)

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DE1052106B true DE1052106B (en) 1959-03-05

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH270100A (en) * 1947-11-21 1950-08-15 Singer Mfg Co High-frequency welding system for joining dielectric materials.
DE821842C (en) * 1950-11-12 1951-11-22 Kurt Kabath Process for the mass production of consumer goods from plastics
DE845263C (en) * 1950-04-06 1952-07-31 Ciba Geigy Process for welding polyethylene and similar plastic material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH270100A (en) * 1947-11-21 1950-08-15 Singer Mfg Co High-frequency welding system for joining dielectric materials.
DE845263C (en) * 1950-04-06 1952-07-31 Ciba Geigy Process for welding polyethylene and similar plastic material
DE821842C (en) * 1950-11-12 1951-11-22 Kurt Kabath Process for the mass production of consumer goods from plastics

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