WO2008012258A1 - Apparatus for joining parts composed of thermoplastic - Google Patents

Apparatus for joining parts composed of thermoplastic Download PDF

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Publication number
WO2008012258A1
WO2008012258A1 PCT/EP2007/057454 EP2007057454W WO2008012258A1 WO 2008012258 A1 WO2008012258 A1 WO 2008012258A1 EP 2007057454 W EP2007057454 W EP 2007057454W WO 2008012258 A1 WO2008012258 A1 WO 2008012258A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
joining
thermoplastic
parts made
joining parts
Prior art date
Application number
PCT/EP2007/057454
Other languages
German (de)
French (fr)
Inventor
Dieter Keller
Original Assignee
Continental Automotive 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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2008012258A1 publication Critical patent/WO2008012258A1/en

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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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces 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
    • B29C66/01—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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • 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
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form 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
    • B29C66/50—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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1406—Ultraviolet [UV] radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7486—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters

Definitions

  • the invention relates to a device for joining parts made of thermoplastic material with a power supply, a power supply connected to the radiator for heating the parts made of thermoplastic material in the region of their joining surfaces.
  • ⁇ a filter element consisting of paper with a plastic housing in this way ⁇ by the fact that the flange of the plastic housing is melted, that filter element is brought into contact with the molten plastic, so that after cooling of the plastic finished filter element is created.
  • Decisive ⁇ for the quality of the connection of the flange with the filter element is the melting depth generated during irradiation.
  • the production costs increase strongly with the irradiation intensity and the irradiation duration.
  • the design of the joining surfaces with a ribbed structure allows a faster heating and thus shorter irradiation times .
  • the disadvantage is that with three-dimensionally shaped joint surfaces, the irradiation times with a ribbed structure can not be significantly shortened.
  • the invention has for its object to reduce the irradiation ⁇ times of parts with three-dimensionally shaped joining surfaces.
  • This object is achieved in that the joining surface facing side of the radiator is shaped such that the relative to the joining surface perpendicular distance between the radiator and the joining surface is constant.
  • the radiator is particularly simple if it is embodied as an infrared or ultraviolet radiator, that is, the heating surface is heated by the emission of infrared or ultraviolet light by the radiator.
  • FIG. 1 shows a device according to the invention with a radiator
  • Figure 2 a further embodiment of the radiator of Fi ⁇ gur 1 in cross section.
  • FIG. 1 shows a device 1 for joining parts made of thermoplastic material.
  • the device 1 has a support surface 2, on which a part 3 is positioned.
  • the part 3 is a housing part, which by connection with another part forms a housing. The connection with the other part takes place via a cohesive connection.
  • the part 3 has a three-dimensional joining surface 4, which is circumferentially arranged in the form of a flange on the circumference of the part 3.
  • an infrared radiator 5 is arranged ⁇ , which is connected via electrical lines 6, 7 with a power supply 8 of the device 1.
  • the radiator 5 is adapted in its spatial extent to the joining surface 4, that the vertical distance between the Fü ⁇ ge Items 4 and the radiator 5 relative to the joining surface 4 is constant. With the constant distance of the radiator 5 to the joint surface 4, a uniform heating of the joint surface 4 is achieved regardless of their geometric design, which ensures a uniform quality of cohesive connection.
  • FIG. 2 shows the radiator 5 from FIG. 1 in section A-A, which is arranged above the joining surface 4 of the part 3.
  • a radiation shield 9 Arranged above the radiator 5 is a radiation shield 9, which limits the propagation of infrared radiation emitted upward by the radiator 5 and directs it by reflection in the direction of the part 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention relates to an apparatus (1) for joining parts (3) composed of thermoplastic, using an electricity supply (8), a radiative source (5) connected to the electricity supply (8) for the heating of the parts (3) composed of thermoplastic in the region of their joint areas (4), where the arrangement of the radiative source (5) is such that it is opposite to the joint area (4) of the part (3). The shape of that side of the radiative source (5) facing towards the joint area (4) is such that, in the perpendicular direction with respect to the joint area (4), the distance between the radiative source (5) and the joint area (4) is constant.

Description

Beschreibungdescription
Vorrichtung zum Fügen von Teilen aus thermoplastischem KunststoffDevice for joining parts made of thermoplastic material
Die Erfindung betrifft eine Vorrichtung zum Fügen von Teilen aus thermoplastischem Kunststoff mit einer Stromversorgung, einem mit der Stromversorgung verbundenen Strahler zum Aufheizen der Teile aus thermoplastischem Kunststoff im Bereich ihrer Fügeflächen.The invention relates to a device for joining parts made of thermoplastic material with a power supply, a power supply connected to the radiator for heating the parts made of thermoplastic material in the region of their joining surfaces.
Es ist bekannt, Teile aus thermoplastischem Kunststoff mit¬ einander zu verbinden, indem diese im Bereich ihrer Fügeflächen mit ultraviolettem oder infrarotem Licht bestrahlt wer- den. Infolge der Bestrahlung kommt es zur Aufheizung, wodurch diese Bereiche angeschmolzen werden, so dass nach dem Zusammenpressen der Teile durch den erkalteten Kunststoff eine Stoffschlüssige Verbindung geschaffen wird. Mit diesem Verfahren ist es auch möglich, Teile aus unterschiedlichen Werk- Stoffen miteinander zu verbinden.It is known to join parts made of thermoplastic material with ¬ each other by advertising irradiated in the region of the joining surfaces with ultraviolet or infrared light to this. As a result of the irradiation there is heating, whereby these areas are melted, so that after the compression of the parts by the cooled plastic a cohesive connection is created. With this method, it is also possible to connect parts made of different materials together.
So ist es bekannt, ein aus Papier bestehendes Filterelement mit einem Gehäuse aus Kunststoff auf diese Weise zu verbin¬ den, indem der Flansch des Kunststoffgehäuses angeschmolzen wird, dass Filterelement mit dem angeschmolzenen Kunststoff in Kontakt gebracht wird, so dass nach dem Erkalten des Kunststoffes ein fertiges Filterelement entsteht. Entschei¬ dend für die Qualität der Verbindung des Flansches mit dem Filterelement ist die bei der Bestrahlung erzeugte Schmelz- tiefe. Die Fertigungskosten steigen dabei mit der Bestrah- lungsintensität und der Bestrahlungsdauer stark an. Die Ausbildung der Fügeflächen mit einer Rippenstruktur ermöglicht ein schnelleres Aufheizen und somit kürzere Bestrahlungszei¬ ten. Nachteilig ist, dass bei dreidimensional geformten Fü- geflächen die Bestrahlungszeiten mit einer Rippenstruktur nicht wesentlich verkürzt werden kann. Der Erfindung liegt die Aufgabe zugrunde, die Bestrahlungs¬ zeiten von Teilen mit dreidimensional geformten Fügeflächen zu verringern.Thus, it is known to verbin ¬ a filter element consisting of paper with a plastic housing in this way ¬ by the fact that the flange of the plastic housing is melted, that filter element is brought into contact with the molten plastic, so that after cooling of the plastic finished filter element is created. Decisive ¬ for the quality of the connection of the flange with the filter element is the melting depth generated during irradiation. The production costs increase strongly with the irradiation intensity and the irradiation duration. The design of the joining surfaces with a ribbed structure allows a faster heating and thus shorter irradiation times . The disadvantage is that with three-dimensionally shaped joint surfaces, the irradiation times with a ribbed structure can not be significantly shortened. The invention has for its object to reduce the irradiation ¬ times of parts with three-dimensionally shaped joining surfaces.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die der Fügefläche zugewandte Seite des Strahlers derart geformt ist, dass der bezogen auf die Fügefläche senkrechte Abstand zwischen dem Strahler und der Fügefläche konstant ist.This object is achieved in that the joining surface facing side of the radiator is shaped such that the relative to the joining surface perpendicular distance between the radiator and the joining surface is constant.
Durch diese Gestaltung des Strahlers ist dieser an die Oberflächenkontur der Fügefläche angepasst. Damit werden alle Be¬ reiche der Fügefläche gleichmäßig aufgeheizt, bzw. ange¬ schmolzen, wodurch eine gleiche Qualität der Verbindung über den gesamten Bereich der Fügefläche erreicht wird. Insbeson- dere lassen sich dadurch auch bei dreidimensional geformten Fügeflächen fehlerfreie Verbindungen erzeugen.By this design of the radiator this is adapted to the surface contour of the joint surface. To ensure that all Be ¬ rich the joint surface whereby a like quality of the connection is achieved over the entire area of the joint surface is evenly heated or melted is ¬. In particular, error-free connections can thus be generated even in the case of three-dimensionally shaped joining surfaces.
Der Strahler gestaltet sich gemäß einer vorteilhaften Ausgestaltung besonders einfach, wenn er als Infrarot- oder Ultra- violett-Strahler ausgebildet ist, d.h., das Aufheizen der Fügefläche erfolgt durch die Abstrahlung von infrarotem oder ultraviolettem Licht durch den Strahler.According to an advantageous embodiment, the radiator is particularly simple if it is embodied as an infrared or ultraviolet radiator, that is, the heating surface is heated by the emission of infrared or ultraviolet light by the radiator.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur wei- teren Verdeutlichung ihres Grundprinzips sind zwei davon in der Zeichnung dargestellt und werden nachfolgend beschrieben Diese zeigt inThe invention allows numerous embodiments. To further clarify their basic principle, two of them are shown in the drawing and are described below
Figur 1: eine erfindungsgemäße Vorrichtung mit einem Strah- ler undFIG. 1 shows a device according to the invention with a radiator and
Figur 2: eine weitere Ausführungsform des Strahlers aus Fi¬ gur 1 im Querschnitt.Figure 2: a further embodiment of the radiator of Fi ¬ gur 1 in cross section.
Figur 1 zeigt eine Vorrichtung 1 zum Fügen von Teilen aus thermoplastischem Kunststoff. Die Vorrichtung 1 besitzt eine Auflagefläche 2, auf der ein Teil 3 positioniert ist. Das Teil 3 ist ein Gehäuseteil, welches durch Verbindung mit einem anderen Teil ein Gehäuse bildet . Die Verbindung mit dem anderen Teil erfolgt über eine Stoffschlüssige Verbindung. Das Teil 3 besitzt eine dreidimensionale Fügefläche 4, die in Form eines Flansches umlaufend am Umfang des Teils 3 angeord- net ist .FIG. 1 shows a device 1 for joining parts made of thermoplastic material. The device 1 has a support surface 2, on which a part 3 is positioned. The part 3 is a housing part, which by connection with another part forms a housing. The connection with the other part takes place via a cohesive connection. The part 3 has a three-dimensional joining surface 4, which is circumferentially arranged in the form of a flange on the circumference of the part 3.
Oberhalb der Fügefläche 4 ist ein Infrarot-Strahler 5 ange¬ ordnet, der über elektrische Leitungen 6, 7 mit einer Stromversorgung 8 der Vorrichtung 1 verbunden ist. Der Strahler 5 ist in seiner räumlichen Ausdehnung derart an die Fügefläche 4 angepasst, dass der senkrechte Abstand zwischen der Fü¬ gefläche 4 und dem Strahler 5 bezogen auf die Fügefläche 4 konstant ist. Mit dem konstanten Abstand des Strahlers 5 zu der Fügefläche 4 wird ein gleichmäßiges Aufheizen der Fü- gefläche 4 unabhängig von deren geometrischen Ausbildung erreicht, was eine gleichmäßige Qualität der Stoffschlüssigen Verbindung gewährleistet.Above the joining surface 4, an infrared radiator 5 is arranged ¬ , which is connected via electrical lines 6, 7 with a power supply 8 of the device 1. The radiator 5 is adapted in its spatial extent to the joining surface 4, that the vertical distance between the Fü ¬ gefläche 4 and the radiator 5 relative to the joining surface 4 is constant. With the constant distance of the radiator 5 to the joint surface 4, a uniform heating of the joint surface 4 is achieved regardless of their geometric design, which ensures a uniform quality of cohesive connection.
Figur 2 zeigt den Strahler 5 aus Figur 1 im Schnitt A-A, der oberhalb der Fügefläche 4 des Teils 3 angeordnet ist. Über dem Strahler 5 ist ein Strahlungsschirm 9 angeordnet, der die Ausbreitung von vom Strahler 5 nach oben abgegebener Infrarotstrahlung begrenzt und diese durch Reflexion in Richtung des Teils 3 lenkt. FIG. 2 shows the radiator 5 from FIG. 1 in section A-A, which is arranged above the joining surface 4 of the part 3. Arranged above the radiator 5 is a radiation shield 9, which limits the propagation of infrared radiation emitted upward by the radiator 5 and directs it by reflection in the direction of the part 3.

Claims

Patentansprüche claims
1. Vorrichtung zum Fügen von Teilen aus thermoplastischem1. Device for joining parts made of thermoplastic
Kunststoff mit einer Stromversorgung, einem mit der Stromversorgung verbundenen Strahler zum Aufheizen der Teile aus thermoplastischem Kunststoff im Bereich ihrer Fügeflächen, wobei der Strahler so angeordnet ist, dass er der Fügefläche des Teils gegenüberliegt, dadurch gekennzeichnet, dass die der Fügefläche (4) zuge- wandte Seite des Strahlers (5) derart geformt ist, dass der bezogen auf die Fügefläche (4) senkrechte Abstand zwischen dem Strahler (5) und der Fügefläche (4) konstant ist .Plastic with a power supply, a radiator connected to the power supply for heating the parts of thermoplastic in the region of their joining surfaces, wherein the radiator is arranged so that it faces the joining surface of the part, characterized in that the joining surface (4) assigned turned side of the radiator (5) is shaped such that with respect to the joining surface (4) perpendicular distance between the radiator (5) and the joining surface (4) is constant.
2. Vorrichtung zum Fügen von Teilen aus thermoplastischem Kunststoff nach Anspruch 1, dadurch gekennzeichnet, dass der Strahler (5) als Infrarot- oder Ultraviolett-Strahler ausgebildet ist.2. Device for joining parts made of thermoplastic material according to claim 1, characterized in that the radiator (5) is designed as an infrared or ultraviolet radiator.
3. Vorrichtung zum Fügen von Teilen aus thermoplastischem Kunststoff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass auf der dem Teil (3) abgewandten Seite des Strahlers (5) ein Strahlungsschirm (10) ange¬ ordnet ist . 3. A device for joining parts made of thermoplastic material according to claim 1 or 2, characterized in that on the side facing away from the part (3) of the radiator (5), a radiation shield (10) is arranged ¬ .
PCT/EP2007/057454 2006-07-24 2007-07-19 Apparatus for joining parts composed of thermoplastic WO2008012258A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035045A (en) * 1990-09-10 1991-07-30 Globe-Union Inc. Method of joining bipolar battery frames
JPH09109262A (en) * 1995-10-19 1997-04-28 Seidensha Denshi Kogyo Kk Method and apparatus for fusion-bonding non-contact heating plate
US20050259433A1 (en) * 2003-05-20 2005-11-24 Koito Manufacturing Co., Ltd. Apparatus for manufacturing a vehicular lamp

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Publication number Priority date Publication date Assignee Title
DE9218016U1 (en) * 1992-12-17 1993-08-19 Branson Ultraschall Niederlassung Der Emerson Technologies Gmbh & Co, 63128 Dietzenbach Device for heating and melting plastics
FR2706353B1 (en) * 1993-06-17 1996-01-26 Mecasonic Sa Heating method by emission of electromagnetic radiation, especially infrared.
JPH08216261A (en) * 1995-02-13 1996-08-27 Sekisui Chem Co Ltd Connecting method for thermoplastic resin tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035045A (en) * 1990-09-10 1991-07-30 Globe-Union Inc. Method of joining bipolar battery frames
JPH09109262A (en) * 1995-10-19 1997-04-28 Seidensha Denshi Kogyo Kk Method and apparatus for fusion-bonding non-contact heating plate
US20050259433A1 (en) * 2003-05-20 2005-11-24 Koito Manufacturing Co., Ltd. Apparatus for manufacturing a vehicular lamp

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