DE102012215105A1 - Apparatus for heat pulse welding - Google Patents
Apparatus for heat pulse welding Download PDFInfo
- Publication number
- DE102012215105A1 DE102012215105A1 DE201210215105 DE102012215105A DE102012215105A1 DE 102012215105 A1 DE102012215105 A1 DE 102012215105A1 DE 201210215105 DE201210215105 DE 201210215105 DE 102012215105 A DE102012215105 A DE 102012215105A DE 102012215105 A1 DE102012215105 A1 DE 102012215105A1
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- pressure
- components
- contraption
- carrier
- heating
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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
- B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
- B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
- B29C65/224—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip being a resistive ribbon, a resistive band or a resistive strip
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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
- B29C65/38—Impulse heating
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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
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap 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
- B29C66/40—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
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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
- B29C66/80—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
- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81455—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
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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
- B29C66/80—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
- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81459—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a filled deformable bladder, e.g. bladder filled with oil, with granules or with a meltable solid material
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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
- B29C66/80—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
- B29C66/8182—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 thermal insulating constructional aspects
- B29C66/81821—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 thermal insulating constructional aspects of the welding jaws
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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
- B29C66/80—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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- 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
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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
- B29C66/004—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
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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
- B29C66/80—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
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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
- B29C66/80—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
- B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81457—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
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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
- B29C66/80—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
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Vorrichtung (1) zum Wärmeimpulsschweißen von zwei zusammenzufügenden Bauteilen (2) aus Kunststoff, wobei ein Träger (20) vorgesehen ist, auf dem die Bauteile (2) aufliegen, und wobei weiterhin zumindest ein den Fügebereich der Bauteile (2) zugeordnetes Heizelement vorgesehen ist, welches den Fügebereich zum Zusammenfügen der Bauteile (2) mit Wärme beaufschlagt, dadurch gekennzeichnet, dass dem Träger (20) zumindest in dem Fügebereich der Bauteile (2) ein mit einem Innendruck beaufschlagbares flexibles Druckelement zugeordnet ist.Device (1) for heat pulse welding of two components (2) made of plastic, wherein a carrier (20) is provided, on which the components (2) rest, and wherein further at least one of the joining region of the components (2) associated heating element is provided , which acts on the joining area for joining the components (2) with heat, characterized in that the carrier (20) at least in the joining region of the components (2) is associated with a pressurizable with an internal pressure flexible pressure element.
Description
Die Erfindung betrifft eine Vorrichtung zum Wärmeimpulsschweißen von zwei zusammenzufügenden Bauteilen aus Kunststoff, wobei ein Träger vorgesehen ist, auf dem die Bauteile aufliegen und wobei weiterhin zumindest ein dem Fügebereich der Bauteile zugeordnetes Heizelement vorgesehen ist, welches den Fügebereich zum Zusammenfügen der Bauteile mit Wärme beaufschlagt, gemäß den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to a device for heat pulse welding of two components to be assembled from plastic, wherein a support is provided, on which rest the components and wherein further at least one of the joining region of the components associated heating element is provided, which acts on the joining area for joining the components with heat, according to the features of the preamble of
Solche Vorrichtungen und entsprechende Verfahren zum Wärmeimpulsschweißen sind grundsätzlich bekannt. Dabei werden zwei Bauteile, zum Beispiel zwei Kunststofffolien, zusammengebracht und der Fügebereich mittels zumindest eines Heizelementes derart mit Wärme beaufschlagt, dass die beiden einander zugeordneten Fügebereiche der Bauteile aufschmelzen und nach Wegnahme des Wärmeeintrages erstarren, sodass sie unlösbar miteinander verbunden sind. Der Wärmeeintrag durch das zumindest eine Heizelement ist dabei so dass das Zusammenfügen erzielt wird, ohne dass der Fügebereich wegbrennt, wegschmilzt oder dergleichen.Such devices and corresponding methods for heat pulse welding are known in principle. In this case, two components, for example, two plastic films, brought together and the joining area so applied by means of at least one heating element with heat that melt the two mutually associated joining areas of the components and solidify after removal of the heat input so that they are permanently connected to each other. The heat input through the at least one heating element is such that the joining is achieved without the joining region burning away, melting away or the like.
Der bekannte Stand der Technik ist zum Beispiel in den
In den beiden Darstellungen der
Bei der Vorrichtung
Die Vorrichtung
Die Folgen sind:
- – Fehler in der Temperaturmessung. Die Heizbandtemperatur wird beispielsweise über den elektrischen Widerstand integral gemessen. Der Widerstand basiert auf der Temperatur des Materials, insbesondere des Stahles, des Heizbandes. Ist dieser lokal höher, sinkt der Widerstand auch lokal ab und das Ergebnis der integralen Messung (analog zu einer Reihenschaltung von Einzelwiderständen) wird verfälscht. Die Prozesstemperatur wird dann in nachteiliger Weise als zu niedrig angenommen und von Mitteln zur Temperaturregelung weiter erhöht. Dadurch kann es in nachteiliger Weise zu der Überhitzung, im schlimmsten Fall zu einem Wegschmelzen oder Abbrennen der Bauteile im Fügebereich, kommen.
- – Durch die lokal erhöhten Temperaturen und die mangelnde Wärmeabfuhr kann es ebenfalls in einer nachteiligen Weise zu einer Schädigung der Isolierung, insbesondere der PTFE-Abdeckung oder des doppelseitigen Montageklebebandes kommen. Nach dieser Schädigung ist die Prozesssicherheit für nachfolgende Schweißungen nicht mehr gewährleistet.
- - Error in the temperature measurement. The heating band temperature is measured integrally, for example, via the electrical resistance. The resistance is based on the temperature of the material, in particular the steel, the heating tape. If this is higher locally, the resistance also drops locally and the result of the integral measurement (analogous to a series connection of individual resistors) is falsified. The process temperature is then adversely considered to be too low and further increased by temperature control means. This can disadvantageously lead to overheating, in the worst case to a melting away or burning off of the components in the joint area.
- - Due to the locally elevated temperatures and the lack of heat dissipation, it can also come in a disadvantageous manner to damage the insulation, in particular the PTFE cover or the double-sided assembly adhesive tape. After this damage, the process reliability for subsequent welding is no longer guaranteed.
In
Analoges gilt für die Situation, die in
Das heißt zusammenfassend, dass falsches Design der Bauteile, mangelnde Ausgleichsfähigkeit der beteiligten Werkzeugelemente und dergleichen zu Lücken zwischen den beiden zusammenzufügenden Bauteilen führt und es damit zu einer inhomogenen Wärmeabgabe durch das Heizelement an die Fügebereiche der beteiligten Bauteile kommt. Dadurch wird in nachteiliger Weise das Zusammenfügen der beiden Bauteile verhindert oder die Strukturfestigkeit des Fügebereiches ist mangelhaft, sodass im späteren Betrieb der beiden Bauteile Nachteile auftreten können, wenn diese entweder nicht richtig miteinander verbunden sind oder sich im Betrieb voneinander lösen.In summary, this means that incorrect design of the components, lack of compensating capability of the tool elements involved and the like leads to gaps between the two components to be assembled and thus results in an inhomogeneous heat emission by the heating element to the joining regions of the components involved. As a result, the joining of the two components is disadvantageously prevented or the structural strength of the joining region is poor, so that disadvantages may occur in the subsequent operation of the two components, if these are either not properly connected to each other or detach from each other during operation.
Der Erfindung liegt daher die Aufgabe zugrunde, die eingangs geschilderten Nachteile zu vermeiden und insbesondere eine Vorrichtung bereitzustellen, mit der nach dem Zusammenfügen der Bauteile ein homogener Fügebereich über seinen gesamten Verlauf sichergestellt ist. Diese Aufgabe ist die Merkmale des Patentanspruches 1 gelöst.The invention is therefore based on the object to avoid the disadvantages described above and in particular to provide a device with which after assembly of the components, a homogeneous joining region over its entire course is ensured. This object is achieved by the features of
Erfindungsgemäß ist vorgesehen, dass dem Träger zumindest in dem Fügebereich der Bauteile ein mit einem einem Innendruck beaufschlagbares flexibles Druckelement zugeordnet ist. Dadurch wird in vorteilhafter Weise ein Heizsystemaufbau erzielt, der Unebenheiten sowohl der gesamten Vorrichtung zum Wärmeimpulsschweißen als auch der beteiligten Bauteile durch einen automatischen Druckausgleich über die Erstreckung des Fügebereiches kompensiert. Ebenso werden in vorteilhafter Weise lokale Fehlstellen im Fügebereich infolge von zu hohen oder zu niedrigen Anpressdrücken, die gemäß dem Stand der Technik lokal auftreten können, kompensiert, sodass nach dem Zusammenfügen der Bauteile in ihrem Fügebereich dieser weitestgehend homogen ist. Es kann daher nicht mehr zu einzelnen lokalen Fehldrücken kommen, wie es weiter oben zu
In Weiterbildung der Erfindung ist das Druckelement als ein mit dem Medium gefüllter Schlauch ausgebildet. Ein solcher Schlauch hat den Vorteil, dass damit ein länglich verlaufender Fügebereich realisiert werden kann, um entsprechend gestaltete Bauteile miteinander verbinden zu können. Dabei folgt der Verlauf des Schlauches in vorteilhafter Weise dem Verlauf des Heizelementes, sodass sich dadurch beispielsweise Schweißnähte in länglicher und schmaler Form realisieren lassen. Der Schlauch kann in seinem Querschnitt rund oder rechteckig sein oder beispielsweise einem D-Profil entsprechen. Dies ist jedoch nur beispielhaft, denn es kommen wesentlich mehr Profile (Querschnitte) in Frage, wenn man entsprechende Extrusionsformen für die Herstellung des Schlauches hat. Das D-Profil ist insbesondere dann von Vorteil, wenn mit dem abgerundeten Bereich dieses Profils der Schlauch in oder an dem Träger befestigt ist und der plane Bereich des Schlauches dem Fügebereich der Bauteile einander zugewandt ist.In a further development of the invention, the pressure element is designed as a tube filled with the medium. Such a hose has the advantage that an elongated joining region can thus be realized in order to be able to connect appropriately designed components to one another. In this case, the course of the hose advantageously follows the course of the heating element, so that it is possible, for example, to realize welds in an elongated and narrow shape. The tube can be round or rectangular in its cross-section or, for example, correspond to a D-profile. However, this is only an example, because there are significantly more profiles (cross sections) in question, if you have appropriate extrusion molds for the production of the hose. The D-profile is particularly advantageous if with the rounded portion of this profile of the hose is fixed in or on the carrier and the flat portion of the hose facing the joint area of the components facing each other.
Alternativ dazu ist es in vorteilhafter Weise und in Weiterbildung der Erfindung denkbar, dass das Druckelement als ein mit dem Medium gefüllter und mit einer Membran abgedeckter Raum in dem Träger ausgebildet ist. In diesem Fall wird das Druckelement von dem Träger und der Membran als Abdeckung gebildet. In dem vorher beschriebenen Fall des Schlauches sind Druckelement und Träger voneinander separate Bauteile.Alternatively, it is conceivable in an advantageous manner and in a development of the invention that the pressure element is designed as a space filled with the medium and covered with a membrane space in the carrier. In this case, the pressure element is formed by the carrier and the membrane as a cover. In the previously described case of the hose, the pressure element and the carrier are separate components from each other.
Alternativ dazu ist es in vorteilhafter Weise und in Weiterbildung der Erfindung denkbar, dass das Druckelement zumindest ein flächiges mit einem Medium gefülltes Kissen ist. Dieses Kissen ist einfach oder mehrfach an und/oder in dem Träger vorhanden und mit dem druckausgleichenden Medium gefüllt. Sind zwei oder mehr Kissen vorhanden, können die darin befindlichen Medien in sich abgeschlossen sein oder auch untereinander zwecks Druckausgleichs verbunden sein. Das oder die Kissen werden durch den Träger, insbesondere im Bereich ihrer Auflagefläche bzw. ihren Seitenbereichen, gestützt. Darüber hinaus ist es denkbar, dass weitere Stützen, zum Beispiel in Form von Trennwänden innerhalb des Trägers, vorhanden sind. Mehrere Kissen können aber auch direkt zueinander in dem Träger angeordnet sein und sich gegenseitig stützen. Wichtig ist, dass ein Teil des Kissens oder der Kissen, insbesondere deren eine Oberfläche, in Richtung des Fügebereiches frei ist und an diesem zur Anlage zwecks Druckausgleichs vor, während bzw. nach dem Energieeintrag kommen kann. Zumindest ein flächiges Druckkissen hat bei engen Kurvenradien Vorteile, wo der Biegeradius eines Schlauchs an seine Grenzen stößt.Alternatively, it is conceivable in an advantageous manner and in a further development of the invention that the pressure element is at least one flat pad filled with a medium. This cushion is available once or several times to and / or in the carrier and filled with the pressure-compensating medium. If two or more cushions are present, the media contained therein may be self-contained or even interconnected for pressure equalization purposes. The cushion (s) are supported by the carrier, in particular in the region of their support surface or their side regions. In addition, it is conceivable that further supports, for example in the form of partitions within the carrier, are present. But several pillows can also be arranged directly to each other in the carrier and support each other. It is important that a part of the pillow or the cushion, in particular its one surface, is free in the direction of the joining area and at this to the plant in order Pressure equalization before, during or after the energy input can come. At least a flat pressure pad has advantages at tight curve radii, where the bending radius of a hose reaches its limits.
Damit stehen verschiedene Möglichkeiten zur Realisierung des Druckelementes zur Verfügung, wodurch eine sehr gute Anpassbarkeit an die Geometrien, insbesondere die Konturen, des Fügebereiches der beteiligten Bauteile möglich ist.Thus, various possibilities for the realization of the printing element are available, whereby a very good adaptability to the geometries, in particular the contours of the joining region of the components involved is possible.
In Weiterbildung der Erfindung ist das Druckelement vollständig auf oder vollständig in dem Träger angeordnet. Daneben ist es denkbar, dass das Druckelement zumindest teilweise über dem Träger in Richtung des Fügebereiches übersteht. Dadurch sind verschiedene Ausgestaltungen des Trägers und des Druckelementes möglich, sodass auch hier wieder eine sehr gute Anpassbarkeit des Heizsystemes an die Kontur des Fügebereiches bei gleichzeitig vorteilhaftem Druckausgleich zur Vermeidung von Fehldruckstellen gegeben ist.In a further development of the invention, the pressure element is arranged completely on or completely in the carrier. In addition, it is conceivable that the pressure element at least partially projects beyond the carrier in the direction of the joining region. As a result, various embodiments of the carrier and the pressure element are possible, so that here again a very good adaptability of the heating system is given to the contour of the joint area with simultaneous advantageous pressure equalization to avoid misalignment points.
In Weiterbildung der Erfindung ist das druckausgleichende Medium ein Wasser, ein Öl oder ein Gas. Diese kompressiblen oder auch inkompressiblen Medien haben den Vorteil, dass sie sich innerhalb des Druckelementes homogen verteilen, gleichzeitig aber auch lokale Fehldruckstellen, insbesondere auch im Zusammenspiel mit dem Material des Druckelementes, ausgleichen.In a further development of the invention, the pressure-compensating medium is a water, an oil or a gas. These compressible or incompressible media have the advantage that they are distributed homogeneously within the printing element, but at the same time also compensate for local misalignment points, in particular in interaction with the material of the printing element.
In Weiterbildung der Erfindung sind Mittel vorgesehen, mit denen der Druck des druckausgleichenden Mediums in dem Druckelement regelbar ist. Dadurch kann die Druckbeaufschlagung des Fügebereiches durch das Druckelement in Abhängigkeit der beteiligten zusammenzufügenden Bauteile gewählt werden, sodass auch unterschiedlich gestaltete, beispielsweise unterschiedlich dicke Bauteile miteinander zusammengefügt werden können, in dem der Innendruck in dem Druckelement geregelt wird. Alternativ kann es ausreichend sein, das Druckelement einmal mit einem Medium zu füllen und anschließend zu verschließen, um für nachfolgende Schweißvorgänge immer den gleichen Druck auf die Fügebereiche ausüben zu lassen. In einem solchen Falle ist jedoch zu Zwecken der Prozesssicherheit daran zu denken, nach Ausführung einer bestimmten Anzahl von Schweißvorgängen den Innendruck zu überprüfen.In a further development of the invention, means are provided with which the pressure of the pressure-compensating medium in the pressure element can be regulated. Thereby, the pressurization of the joining region can be selected by the pressure element in dependence of the components to be assembled together, so that differently shaped, for example, different thickness components can be joined together, in which the internal pressure is controlled in the pressure element. Alternatively, it may be sufficient to fill the pressure element once with a medium and then to close in order to always exert the same pressure on the joining areas for subsequent welding operations. In such a case, however, for purposes of process safety, it is to be considered to check the internal pressure after performing a certain number of welding operations.
Alternativ oder in Ergänzung zu der Druckregelung ist es in Weiterbildung der Erfindung vorgesehen, dass Mittel vorgesehen sind, mit denen die Temperatur des druckausgleichenden Mediums in dem Druckelement regelbar ist. Das heißt, dass beispielsweise das Wasser oder allgemein das Medium temperiert werden kann, um die Wärmeabfuhr und/oder den Wärmehaushalt des Systems, insbesondere des Druckelementes, zu optimieren.Alternatively or in addition to the pressure control, it is provided in a development of the invention that means are provided with which the temperature of the pressure-compensating medium in the pressure element can be regulated. This means that, for example, the water or generally the medium can be tempered in order to optimize the heat dissipation and / or the heat balance of the system, in particular of the pressure element.
In Weiterbildung der Erfindung ist das Heizelement als Heizband ausgebildet. Mit einem solchen länglichen und schmalen ausgebildeten Heizelement können in vorteilhafter Weise längliche und schmale Schweißnähte realisiert werden. Diese Realisierung ist dann von besonderem Vorteil, wenn das Heizelement als Heizband und das Druckelement als Schlauch ausgebildet sind.In a further development of the invention, the heating element is designed as a heating tape. With such an elongate and narrow heating element formed elongated and narrow welds can be realized in an advantageous manner. This realization is of particular advantage when the heating element is designed as a heating tape and the pressure element as a hose.
In Weiterbildung der Erfindung ist das Heizelement, insbesondere das Heizband, mit einem Kleber, insbesondere einem Klebeband, einem Hochtemperaturklebstoff oder gleichwirkenden Klebstoffen, auf dem Druckelement befestigt. Dadurch lässt sich ein besonders vorteilhafter einfacher Aufbau der gesamten Vorrichtung erzielen.In a further development of the invention, the heating element, in particular the heating tape, with an adhesive, in particular an adhesive tape, a high-temperature adhesive or equivalent adhesives, mounted on the printing element. As a result, a particularly advantageous simple construction of the entire device can be achieved.
In Weiterbildung der Erfindung ist das Heizelement, insbesondere das Heizband, in Richtung des Fügebereiches mit einer Folie und/oder mit einer Beschichtung versehen. Damit wird wirksam vermieden, dass der Fügebereich des zugeordneten Bauteiles an dem Heizelement, insbesondere an dem Heizband, anhaftet. Zu diesem Zweck sind in vorteilhafter Weise die Folie und/oder die Beschichtung aus einem solchen Material gewählt, welches in Bezug auf das Material der zusammenzufügenden Bauteile Antihaft-Eigenschaften aufweist.In a development of the invention, the heating element, in particular the heating tape, is provided in the direction of the joining region with a film and / or with a coating. This effectively prevents the joining region of the associated component from adhering to the heating element, in particular to the heating tape. For this purpose, the film and / or the coating are selected from such a material advantageously, which has non-stick properties with respect to the material of the components to be assembled.
Ein Ausführungsbeispiel der Erfindung ist in verschiedenen Varianten in
Bezug nehmend auf die
Alternativ dazu ist die gleiche Ausgestaltung in
Ebenfalls analog dazu zeigt die
Im Unterschied zu den vorangegangen
In vorteilhafter Weise wird also eine Vorrichtung und ein Verfahren zum Wärmeimpulsschweißen zur Verfügung gestellt, bei dem der Fügebereich der beiden zusammenzufügenden Bauteile über seine gesamte Erstreckung, die beliebige Form aufweisen kann, homogen ist, ohne dass Fehlstellen vorhanden sind. Sollen trotzdem Fehlstellen vorhanden sein, sind diese infolge des erfindungsgemäßen Druckelementes vernachlässigbar.Advantageously, therefore, an apparatus and a method for heat pulse welding is provided in which the joining region of the two components to be assembled over its entire extension, which may have any shape is homogeneous, without defects are present. If, however, defects are to be present, these are negligible as a result of the pressure element according to the invention.
Die Vorrichtung
Bezüglich des Heizelementes, insbesondere des Heizbandes, ist noch Folgendes auszuführen: Dieses Heizelement, insbesondere das Heizband, kann in verschiedenen Ausführungen hergestellt werden, ohne dass dies eine Einschränkung bedeutet. Zum einen aus einer speziellen Metalllegierung für das Wärmemetallimpulsschweißen. Es wird dann mit einem doppelseitigen Klebeband auf den Träger (Trägerprofil, Trägerstruktur oder dergleichen) montiert. Es kann auch in Form einer mit elektrisch leitfähigen Carbon-Nanotubes funktionell gefüllten Schicht hergestellt werden. Es kann auch aus einem Metall oder einem Kohlenstofffasergewebe bestehen. Es wird dann mit einem geeigneten Montagehilfsmittel (z. B. doppelseitiges Klebeband oder Klebstoff) ebenfalls auf das Trägerprofil montiert. Es kann auch aus einer elektrisch leitfähigen, keramischen Dickschichtbeschichtung (Dickschichtwiderstand) bestehen. Solche Dickschichtleiterbahnen als Heizung sind zum Beispiel aus der
In
Die Abdeckung ist zur Vermeidung von Auftauchen oder Aufbauchen des Kissens während des Druckausgleiches vorgesehen. Das Kissen kann zum Beispiel über Stehbolzen zum Träger
Eine Möglichkeit zur Konturgebung, damit ein Aufbauchen des Kissens in der Mitte vermieden wird, sind Innenstege, eine abdeckende Blechmaske mit Aussparungen oder das Einbringen von Stehbolzen (entsprechend Durchbrüchen im Kissen), welche die abgedeckte Kontur am tragenden Unterbau halten.One way of contouring to avoid centering of the pad is to have inner webs, a covering sheet metal mask with recesses or the insertion of studs (corresponding to apertures in the pad) that hold the covered contour to the supporting substructure.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
- 11
- Vorrichtung zum WärmeimpulsschweißenApparatus for heat pulse welding
- 22
- Bauteilecomponents
- 33
- Trägercarrier
- 44
- Heizbandheating tape
- 55
- Isolierfolieinsulation
- 66
- Elektrische IsolierungElectrical insulation
- 77
- Elastische BasisElastic base
- 88th
- Normaldrucknormal pressure
- 99
- Fehldruckmisprint
- 1010
- Überhitzungoverheating
- 1111
- Temperaturreglerthermostat
- 1212
- Fügebereichjoining area
- 1313
- Spaltgap
- 1414
- FehlfügebereichLack joining area
- 2020
- Trägercarrier
- 2121
- Heizbandheating tape
- 2222
- KleberGlue
- 2323
- flexibler Schlauchflexible hose
- 2424
- Membranmembrane
- 2525
- Mediummedium
- 2626
- AbdeckblechCover plate
- 2727
- Trennwandpartition wall
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 4333852 A1 [0031] DE 4333852 Al [0031]
Claims (12)
Priority Applications (1)
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DE201210215105 DE102012215105A1 (en) | 2011-08-30 | 2012-08-24 | Apparatus for heat pulse welding |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102011111405 | 2011-08-30 | ||
DE102011111405.3 | 2011-08-30 | ||
DE201210215105 DE102012215105A1 (en) | 2011-08-30 | 2012-08-24 | Apparatus for heat pulse welding |
Publications (1)
Publication Number | Publication Date |
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DE102012215105A1 true DE102012215105A1 (en) | 2013-02-28 |
Family
ID=46845723
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DE201210215105 Withdrawn DE102012215105A1 (en) | 2011-08-30 | 2012-08-24 | Apparatus for heat pulse welding |
Country Status (2)
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DE (1) | DE102012215105A1 (en) |
WO (1) | WO2013030114A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019053086A1 (en) * | 2017-09-14 | 2019-03-21 | Fokker Aerostructures Bv | Conduction welding |
EP4205953A1 (en) * | 2021-12-28 | 2023-07-05 | Mitsubishi Heavy Industries, Ltd. | Welding device and welding method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2015329971B2 (en) | 2014-10-10 | 2020-04-30 | Cryovac, Llc | Apparatus and process for packaging a product |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4333852A1 (en) | 1993-09-23 | 1995-03-30 | Lust Hybrid Technik Gmbh | Heating element for a foil welding devices |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739015A (en) * | 1953-06-30 | 1955-10-26 | Wilts United Dairies Ltd | Improvements in means for sealing materials by heat |
DK126167B (en) * | 1971-11-24 | 1973-06-18 | Elwis Ingf | Apparatus for joining two foils under pressure and heat. |
US3964958A (en) * | 1973-01-24 | 1976-06-22 | Johnston Orin B | Heat bonding device |
BE905400A (en) * | 1986-09-09 | 1987-03-09 | Baxter Travenol Lab | DEVICE FOR WELDING SHEETS OF THERMOPLASTIC MATERIAL BETWEEN TWO ELECTRODES. |
DE10005020A1 (en) * | 2000-02-04 | 2001-08-09 | Rovema Gmbh | Thermoplastics welding equipment for production of tubular bags from plastic film has a heat sealing band on a deformable support |
GB0811755D0 (en) * | 2008-06-27 | 2008-07-30 | Kbiosciences Ltd | Improvements to microplate sealing |
-
2012
- 2012-08-24 DE DE201210215105 patent/DE102012215105A1/en not_active Withdrawn
- 2012-08-24 WO PCT/EP2012/066513 patent/WO2013030114A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4333852A1 (en) | 1993-09-23 | 1995-03-30 | Lust Hybrid Technik Gmbh | Heating element for a foil welding devices |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019053086A1 (en) * | 2017-09-14 | 2019-03-21 | Fokker Aerostructures Bv | Conduction welding |
CN111433006A (en) * | 2017-09-14 | 2020-07-17 | 福克航空结构公司 | Conduction welding |
US11845231B2 (en) | 2017-09-14 | 2023-12-19 | Fokker Aerostructures Bv | Conduction welding |
EP4205953A1 (en) * | 2021-12-28 | 2023-07-05 | Mitsubishi Heavy Industries, Ltd. | Welding device and welding method |
US11999114B2 (en) | 2021-12-28 | 2024-06-04 | Mitsubishi Heavy Industries, Ltd. | Welding device and welding method |
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