DE10059452B4 - Method and device for producing a separation effect on heating element welding tools - Google Patents
Method and device for producing a separation effect on heating element welding tools Download PDFInfo
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- DE10059452B4 DE10059452B4 DE10059452A DE10059452A DE10059452B4 DE 10059452 B4 DE10059452 B4 DE 10059452B4 DE 10059452 A DE10059452 A DE 10059452A DE 10059452 A DE10059452 A DE 10059452A DE 10059452 B4 DE10059452 B4 DE 10059452B4
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- heating element
- vibration
- heating
- welding tool
- welding
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Classifications
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- 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"
-
- 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
- B29C66/005—Detaching the article from the joining tool
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- 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
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
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- 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
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular 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
- B29C66/80—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
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
- B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining 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
- 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
- B29C66/71—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 composition of the plastics material of 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
- 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
- B29C66/81—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
- B29C66/8124—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 structure of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81241—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 structure of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps being porous or sintered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Verfahren zur Erzeugung eines Trenneffektes an Heizelement-Schweißwerkzeugen zur rückstandfreien Ablösung des viskosen Schweißnahtwerkstoffes thermoplastischer Schweißteile vom Heizelement nach dem Anwärmvorgang, dadurch gekennzeichnet,
dass die geschliffenen Arbeitsflächen des Heizelement-Schweißwerkzeuges oder die Kontaktplatten in den Arbeitsflächen des Heizelement-Schweißwerkzeuges kurz vor dem Ende des Anwärmvorganges und während des Umstellvorganges oder während der gesamten Anwärmzeit und während des Umstellvorganges zum Abheben und Entfernen der Schweißteile vom Heizelement mit einer mechanischen Schwingung mit einer solchen Frequenz beaufschlagt werden, dass diese Schwingung zu einer Scherung der Kunststoffschmelze an der Grenzfläche zur Arbeitsfläche des Heizelement-Schweißwerkzeuges und damit zu einem Trenneffekt und zu einer rückstandfreien Trennung führt,
dass die Arbeitsflächen oder die Kontaktplatten des Heizelement-Schweißwerkzeuges, angepasst an den Thermoplastwerkstoft, die Schweißparameter und die geometrische Form der Fügeflächen der Schweißteile, in longitudinale, transversale, biaxiale oder Torsionsschwingungen versetzt werden,
dass in Abhängigkeit von der verwendeten Schwingungsart eine oder auch mehrere Schwingungsquellen eingesetzt werden.Process for producing a separation effect on heating element welding tools for the residue-free removal of the viscous weld material of thermoplastic welding parts from the heating element after the heating process, characterized in that
that the ground working surfaces of the heating element welding tool or the contact plates in the working surfaces of the heating element welding tool shortly before the end of the heating process and during the changeover process or during the entire heating time and during the changeover process for lifting and removing the welded parts from the heating element with a mechanical vibration such a frequency is applied that this vibration leads to shear of the plastic melt at the interface with the working surface of the heating element welding tool and thus to a separation effect and to a residue-free separation,
that the work surfaces or the contact plates of the heating element welding tool, adapted to the thermoplastic material, the welding parameters and the geometric shape of the joining surfaces of the welding parts, are set in longitudinal, transverse, biaxial or torsional vibrations,
that one or more vibration sources are used depending on the type of vibration used.
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erzeugung eines Trenneffektes an Heizelement-Schweißwerkzeugen zur rückstandfreien Ablösung des viskosen Schweißnahtwerkstoffes thermoplastischer Schweißteile vom Heizelement nach dem Anwärmvorgang.The invention relates to a method and a device for producing a separation effect on heating element welding tools for residue-free replacement of the viscous weld material thermoplastic weldments from the heating element after the heating process.
Das Heizelementschweißen von Kunststoffen ist das wichtigste Schweißverfahren für Serienteile mittlerer Größe. Seine Verfahrensschritte sind straft gegliedert, eindeutig und deshalb gut mechanisierbar und automatisierbar. Fast immer wird vorausgesetzt, dass die zu verschweißenden Teile vor dem Schweißen nicht bearbeitet werden müssen.Heating element welding from Plastics is the most important welding process for series parts medium size. His Process steps are punctually structured, clear and therefore easy to mechanize and automate. It is almost always assumed that the ones to be welded Parts before welding do not need to be edited.
Die Verbindungsflächen der Schweißteile werden im Allgemeinen durch Berührung mit einem Heizelement auf Schweißtemperatur erwärmt und unter Druck ohne Zusatzwerkstoff miteinander verschweißt.The joining surfaces of the welded parts are generally by touch heated to welding temperature with a heating element and under Pressure welded together without filler material.
Die bei der Berührung des Thermoplastes mit dem Heizelement entstehende Schmelze bleibt teilweise aufgrund der Adhäsionskraft zwischen Schmelze und Heizelement auf der Oberfläche des Heizelementes kleben.When touching the thermoplastic with the melt that arises remains partly due to the adhesive force stick between the melt and the heating element on the surface of the heating element.
Deshalb werden die ebenen oder räumlich geformten Heizelemente beim Heizelementschweißen bis 260 °C mit PTFE besintert oder plane Heizelemente auch mit PTFE-Folie bespannt, um beim Abheben der Schweißteile vom Heizelement ein rückstandfreies Ablösen der Nahtschmelze vom Heizelement zu gewährleisten.That is why the flat or spatially shaped ones Heating elements for heating element welding up to 260 ° C with PTFE sintered or flat heating elements also covered with PTFE film to help lift off the weldments residue-free from the heating element supersede to ensure the seam melt from the heating element.
Solche Lösungen sind aus der Praxis
und aus der Schutzrechtsliteratur bekannt. So wird in der
Nachteilig bei allen diesen PTFE-Beschichtungen oder Überzügen ist, dass sie beim Schweißen in der Serienfertigung einem hohen Verschleiß unterliegen und die zyklische Erneuerung dieser Beschichtungen oder Überzüge auf den Heizelementen den kontinuierlichen Prozeßablauf stört.A disadvantage of all of these PTFE coatings or covers, that when welding in Series production is subject to high wear and tear and cyclical renewal of these coatings or coatings on the Heating elements disrupt the continuous process.
Weiterhin kann es bei Werkstoffen mit niedriger Schmelzeviskosität trotz Antihaftbeschichtung des Heizelementes mit PTFE zum teilweise Anhaften von Schmelze am Heizelement kommen. Dies ist dann der Fall, wenn die Adhäsion der Nahtschmelze auf dem Heizelement größer ist als die Kohäsion in der Schmelze.It can also be the case with materials with low melt viscosity partially despite the non-stick coating of the heating element with PTFE Adherence of melt to the heating element. This is the case if the adhesion the seam melt on the heating element is greater than the cohesion in the Melt.
Darüber hinaus sind PTFE-Beschichtungen beim Schweißen mit Temperaturen > 270 °C nicht mehr einsetzbar, da PTFE nur bis 327 °C temperaturbeständig ist und sich bei einer Temperatur von 400 °C zersetzt.In addition, PTFE coatings are included welding with temperatures> 270 ° C no longer Can be used as PTFE only up to 327 ° C temperature resistant is and decomposes at a temperature of 400 ° C.
Eine Vertahrensvariante des Heizelementschweißens ist das Hochtemperaturschweißen. Dieses wird in der automatisierten Serienschweißtechnik eingesetzt. Der Verfahrensablauf entspricht dem des traditionellen Heizelementschweißens, jedoch werden die Fügeflächen bei Heizelementtemperaturen > 270 °C und in wesentlich kürzeren Anwärmzeiten durch Kontakt mit der metallisch blanken Heizelementoberfläche plastiziert. Es lassen sich nur Thermoplaste schweißen, deren thermische Zersetzungsprodukte mit zunehmender Temperatur flüssig oder gasförmig sind (z. B. Polyolefine, Polyamide u. a.). Es entsteht eine sehr dünnflüssige Schmelze, deren teilweise thermisch geschädigte Bestandteile beim Fügen aus der Naht gedrückt werden. Am Hochtemperaturheizelement entsteht eine Schmelzzone mit einem sehr komplexen Schichtaufbau, von der Dampfphase bis zu einer integralen Schmelzeschicht. Innerhalb dieser Schmelzeschicht entstehen auch reaktionsfähige Schmelzeanteile, die mit gleicher Schmelze unter Druck eine Schweißverbindung eingehen.One method variant of heating element welding is high temperature welding. This is used in automated series welding technology. The procedure corresponds to that of traditional heating element welding, however the joining surfaces at Heating element temperatures> 270 ° C and in much shorter Warm-up times Plastic contact with the bare metal heating element surface. Only thermoplastics and their thermal decomposition products can be welded liquid with increasing temperature or gaseous are (e.g. polyolefins, polyamides, etc.). A very arises thin melt, their partially thermally damaged Components when joining pushed out of the seam become. A melting zone is created on the high-temperature heating element a very complex layer structure, from the vapor phase to one integral melt layer. Form within this melt layer also responsive Parts of the melt that form a welded joint with the same melt under pressure received.
Einige Werkstoffe, z. B. Polyamide, neigen aber auch beim Hochtemperatur-Heizelementschweißen aufgrund ihrer sehr geringen Schmelzeviskosität zum Klebenbleiben der Schmelze am Schweißwerkzeug, was zu einer unstabilen Nahtqualität führt und verschmutzte Heizelemente zur Folge hat.Some materials, e.g. B. polyamides, but also tend to be due to high temperature heating element welding their very low melt viscosity for sticking the melt on the welding tool, which leads to an unstable seam quality and dirty heating elements has the consequence.
Diese verschmutzten Heizelemente müssen ausgetauscht oder gereinigt werden, wodurch Unterbrechungen und Störungen im Prozeßablauf verursacht werden. Eine Antihaftbeschichtung des Heizelementes aus PTFE oder Überzüge aus PTFE-Folien oder -Gewebe scheidet aus, da PTFE beim Hochtemperaturschweißen. mit Heizelementtemperaturen > 270 °C selbst versagt.These dirty heating elements need to be exchanged or cleaned, causing interruptions and malfunctions in the process flow caused. A non-stick coating of the heating element PTFE or coatings made of PTFE films or -Tissue is eliminated because PTFE is used for high-temperature welding. With Heating element temperatures> 270 ° C itself failed.
In der
Nachteilig bei dieser Lösung ist, daß eine aufwendige und kostenintensive Maschinentechnik mit sehr hohen Beschleunigungen und schnellen Verfahrbewegungen notwendig ist. Diese Bewegungsabläufe erfordern eine steife und robuste Konstruktion der Schweißvorrichtung und führen zu hohen mechanischen Belastungen und zu hohem Verschleiß der Bauteile.The disadvantage of this solution is that an elaborate and cost-intensive machine technology with very high accelerations and fast traversing movements is necessary. These movements require a stiff and robust construction of the welding device and lead to high mechanical loads and excessive wear of the components.
Der Erfindung liegt die, Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Erzeugung eines Trenneffektes an Heizelement-Schweißwerkzeugen zu schaffen, bei dem die auf Schweißtemperatur angewärmten Schweißteile, insbesondere solche mit niedrigviskoser Nahtschmelze, rückstandfrei vom Heizelement-Schweißwerkzeug getrennt werden.The invention is the object based on a method and an apparatus for generating a To create separation effect on heating element welding tools the welded parts warmed to the welding temperature, especially those with low-viscosity seam melt, residue-free from the heating element welding tool be separated.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die geschliffenen Arbeitsflächen des Heizelement-Schweißwerkzeuges während des Umstellvorganges zum Abheben und Entfernen der Schweißteile vom Heizelement mit mechanischen Schwingungen beaufschlagt werden, die zu einer Scherung der Kunststoffschmelze in der Grenzfläche zum Heizelement-Schweißwerkzeug führen und dadurch eine rückstandfreie Trennung zwischen den Schweißteilen und dem Heizelement-Schweißwerkzeug bewirken. Es entsteht an der Kontaktfläche zwischen Nahtschmelze und Heizelement-Schweißwerkzeugoberfläche eine intensive Scherung, bei der die Kohäsionskräfte der Schmelze größer sind als die Adhäsionskräfte zur Schweißwerkzeugoberfläche. Dieser Trenneffekt bewirkt, dass es zu einer rückstandlosen Trennung zwischen Schweißwerkzeug und Schweißteil kommt.This object is achieved according to the invention solved, that the polished work surfaces of the Hot plate welding tool while the changeover process for lifting and removing the welded parts from the The heating element is subjected to mechanical vibrations to shear the plastic melt in the interface with the Hot plate welding tool to lead and therefore a residue-free Separation between the welded parts and the heating element welding tool cause. It arises at the contact surface between the seam melt and Heating element welding tool surface one intensive shear, in which the cohesive forces of the melt are greater than the adhesive forces to Welding tool surface. This Separation effect causes a residue-free separation between Welding tool and weldment comes.
Die Schwingungserzeugung kann mit mechanischen, elektrischen oder akustischen Schwingungsquellen erfolgen. Am Heizelement-Schweißwerkzeug können eine oder mehrere Schwingungsquellen eingesetzt werden.The vibration can be generated with mechanical, electrical or acoustic sources of vibration. On the heating element welding tool can one or more vibration sources are used.
Die Arbeitsflächen des Heizelement-Schweißwerkzeuges können, angepasst an den Thermoplastwerkstoff, die Schweißparameter und die geometrische Form der Fügeflächen der Schweißteile, in longitudinale, transversale, biaxiale oder Torsionsschwingungen versetzt werden. In Abhängigkeit von der verwendeten Schwingungsart können die Arbeitsflächen auch sphärische Formen aufweisen.The work surfaces of the heating element welding tool can, adapted to the thermoplastic material, the welding parameters and the geometric shape of the joining surfaces of the welded parts, in longitudinal, transverse, biaxial or torsional vibrations be transferred. Dependent on The work surfaces can also depend on the type of vibration used spherical Have shapes.
Zum Schutz der temperaturempfindlichen Schwingungsquelle ist zwischen Heiz element-Schweißwerkzeug und Schwingungsquelle ein Kühlelement angeordnet, welches in der Lage ist, mechanische Schwingungen zu übertragen und einer Wärmeleitung von der heißen Schweißwerkzeugoberfläche zur Schwingungsquelle entgegenzuwirken bzw. die Wärme abzuführen.To protect the temperature-sensitive vibration source is between the heating element welding tool and the vibration source a cooling element arranged, which is able to transmit mechanical vibrations and heat conduction from the hot Welding tool surface for Counteracting the vibration source or dissipating the heat.
Die erfindungsgemäße Vorrichtung besteht aus dem Heizelement-Schweißwerkzeug mit an den Arbeitsflächen angeordneten beweglichen Kontaktplatten, die durch den Heizelement-Körper auf die erforderliche Schweißfemperätur erwärmt werden und als Anlageflächen für das Anwärmen der Schweißteile dienen. Die Kontaktplatten sind über ein Kühlelement mit einer Schwingungsquelle fest verbunden. Das Kühlelement muß schwingfähig und an die jeweilige Schwingungsquelle angepasst sein. Beim Erwärmen von Schweißteilen an den Kontaktplatten bewegen sich die Kontaktplatten zunächst nicht, um einen effektiven Wärmeübergang zu erzielen. Kurz vor dem Ende des Anwärmvorganges und während des Umstellvorganges werden die Kontaktplatten durch die Schwingungsquelle in Schwingungen versetzt, sodass ein Trenneffekt einsetzt, dadurch, dass an der Grenzfläche des viskosen Schweißnahtwerkstoffes zur Kontaktplatte eine sehr hohe Scherung entsteht, die zu einem rückstandlosen Ablösen der Schweißteile von den Kontaktplatten führt.The device according to the invention consists of the heating element welding tool with on the work surfaces arranged movable contact plates by the heating element body the required welding temperature can be heated and as investment areas for the warming of the welded parts serve. The contact plates are over a cooling element firmly connected to a vibration source. The cooling element must be able to vibrate and be adapted to the respective vibration source. When heating weldments the contact plates do not initially move on the contact plates, for an effective heat transfer to achieve. Shortly before the end of the heating process and during the The contact plates are changed over by the vibration source vibrated so that a separation effect sets in, that at the interface of the viscous weld material very high shear to the contact plate, which leads to a remainderless supersede of the welded parts leads from the contact plates.
Der Heizelementkörper mit den Kontaktplatten kann auch eine sphärische Form aufweisen und der Geometrie der Fügeflächen der Schweißteile angepasst sein. Zwei Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.The heating element body with the contact plates can also be a spherical Have shape and adapted to the geometry of the joining surfaces of the welded parts his. Two embodiments the invention are illustrated in the drawings and are in Following closer described.
Es zeigen:Show it:
Nach einem ersten Ausführungsbeispiel,
Beim Erwärmen von Schweißteilen
Nach einem zweiten Ausführungsbeispiel,
- 11
- Heizelementkörperheater body
- 22
- HeizelementarbeitsflächenHeizelementarbeitsflächen
- 33
- Längsführungenlongitudinal guides
- 44
- Kontaktplattencontact plates
- 55
- Schwingungsquellevibration source
- 66
- Schwingrichtungvibration direction
- 77
- Schweißteilweldment
- 88th
- Kühlelementcooling element
- 99
- Koppelstückcoupling piece
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DE10059452A DE10059452B4 (en) | 2000-11-30 | 2000-11-30 | Method and device for producing a separation effect on heating element welding tools |
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DE10059452A DE10059452B4 (en) | 2000-11-30 | 2000-11-30 | Method and device for producing a separation effect on heating element welding tools |
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DE10059452A1 DE10059452A1 (en) | 2002-06-20 |
DE10059452B4 true DE10059452B4 (en) | 2004-03-11 |
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DE10254867B4 (en) * | 2002-11-25 | 2004-10-21 | Kunststoff-Zentrum in Leipzig gemeinnützige Gesellschaft mbH | Process for welding plastics |
KR20220141350A (en) | 2015-09-30 | 2022-10-19 | 부트벨딩 에스아 | Securing a second object to a first object |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2924930A1 (en) * | 1979-06-18 | 1981-01-22 | Tudor Ab | DEVICE FOR WELDING CONNECTING PARTS THAT ARE MADE OF THERMOPLASTIC MATERIAL IN THE WAY OF MIRROR WELDING |
DE8806839U1 (en) * | 1988-05-26 | 1988-07-21 | Kommanditgesellschaft Hassomat Maschinenbau GmbH & Co, 2000 Hamburg | Heating element for welding machines, in particular frame welding machines, and film covering for such a heating element |
DE3741100A1 (en) * | 1987-12-04 | 1989-06-15 | Niederberg Chemie | Heated tool |
DE8906083U1 (en) * | 1989-05-17 | 1989-07-13 | Leschuplast Kunststoff-Fabrik Gmbh, 5630 Remscheid | Welding mirror for butt welding of profile elements made of thermoplastic material |
DE3231861C2 (en) * | 1981-08-26 | 1990-04-19 | Mitsubishi Kasei Corp., Tokio/Tokyo, Jp | |
DE9104065U1 (en) * | 1991-04-04 | 1991-06-06 | Wegoma GmbH Maschinenfabrik, 7531 Eisingen | Welding device for plastic profiles |
DE4328391A1 (en) * | 1993-08-24 | 1995-03-02 | Wegoma Maschf Gmbh | Process and apparatus for welding plastics profiles |
DE4416347A1 (en) * | 1994-05-09 | 1995-11-16 | Urban Maschinenbau | Holder for fastening protective film onto hot plate welding tool |
-
2000
- 2000-11-30 DE DE10059452A patent/DE10059452B4/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2924930A1 (en) * | 1979-06-18 | 1981-01-22 | Tudor Ab | DEVICE FOR WELDING CONNECTING PARTS THAT ARE MADE OF THERMOPLASTIC MATERIAL IN THE WAY OF MIRROR WELDING |
DE3231861C2 (en) * | 1981-08-26 | 1990-04-19 | Mitsubishi Kasei Corp., Tokio/Tokyo, Jp | |
DE3741100A1 (en) * | 1987-12-04 | 1989-06-15 | Niederberg Chemie | Heated tool |
DE8806839U1 (en) * | 1988-05-26 | 1988-07-21 | Kommanditgesellschaft Hassomat Maschinenbau GmbH & Co, 2000 Hamburg | Heating element for welding machines, in particular frame welding machines, and film covering for such a heating element |
DE8906083U1 (en) * | 1989-05-17 | 1989-07-13 | Leschuplast Kunststoff-Fabrik Gmbh, 5630 Remscheid | Welding mirror for butt welding of profile elements made of thermoplastic material |
DE9104065U1 (en) * | 1991-04-04 | 1991-06-06 | Wegoma GmbH Maschinenfabrik, 7531 Eisingen | Welding device for plastic profiles |
DE4328391A1 (en) * | 1993-08-24 | 1995-03-02 | Wegoma Maschf Gmbh | Process and apparatus for welding plastics profiles |
DE4416347A1 (en) * | 1994-05-09 | 1995-11-16 | Urban Maschinenbau | Holder for fastening protective film onto hot plate welding tool |
Also Published As
Publication number | Publication date |
---|---|
DE10059452A1 (en) | 2002-06-20 |
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