JP2009184162A - Infrared welding apparatus for thermoplastic resin member - Google Patents

Infrared welding apparatus for thermoplastic resin member Download PDF

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Publication number
JP2009184162A
JP2009184162A JP2008024716A JP2008024716A JP2009184162A JP 2009184162 A JP2009184162 A JP 2009184162A JP 2008024716 A JP2008024716 A JP 2008024716A JP 2008024716 A JP2008024716 A JP 2008024716A JP 2009184162 A JP2009184162 A JP 2009184162A
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Japan
Prior art keywords
infrared
thermoplastic resin
resin member
solid
superposed
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Pending
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JP2008024716A
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Japanese (ja)
Inventor
Yasuo Kurosaki
晏夫 黒崎
Kimitoshi Sato
公俊 佐藤
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Campus Create Co Ltd
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Campus Create Co Ltd
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Priority to JP2008024716A priority Critical patent/JP2009184162A/en
Priority to US12/361,565 priority patent/US20090294047A1/en
Priority to EP09152036.1A priority patent/EP2087989B1/en
Publication of JP2009184162A publication Critical patent/JP2009184162A/en
Priority to US14/163,138 priority patent/US20140138023A1/en
Pending legal-status Critical Current

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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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—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
    • 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
    • B29C65/1435—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 at least passing through one of the parts to be joined, i.e. transmission welding
    • 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
    • B29C65/1454—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 scanning at least one 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
    • B29C66/003—Protecting areas of the parts to be joined from overheating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3474—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients perpendicular to the plane of the joint
    • 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
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/8126—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 intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29C66/91411—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 parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • 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
    • 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
    • B29C65/1419—Mid-infrared radiation [MIR]
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To suppress an increase in the facility cost of an infrared transmittable solid even when a thermoplastic resin member is large in size in a thermoplastic resin member welding apparatus using the infrared transmittable solid. <P>SOLUTION: The length or area of the infrared transmittable solid is smaller than the length or area of the thermoplastic resin member, and the shape of an area irradiated with infrared beams is equal substantially to the shape of the area of the infrared transmittable solid. The infrared transmittable solid, while being irradiated with infrared beams, is moved continuously at least in two directions along the surface of the thermoplastic resin member of a first layer, so that the light source of the infrared beams is linked and moved, or its irradiation direction is changed continuously. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は熱可塑性樹脂部材の溶着装置に関するものであり、さらに詳しくは支持体に対して２個以上の熱可塑性樹脂部材を重ね合わせ、さらに第１層目の熱可塑性樹脂部材の表層側に赤外線透過性固体を重ね合わせて形成された重合せ群に対して赤外線透過性固体側から赤外線ビームを照射する装置の改良に関するものである。 The present invention relates to a thermoplastic resin member welding apparatus, and more specifically, two or more thermoplastic resin members are superposed on a support, and an infrared ray is formed on the surface layer side of the first thermoplastic resin member. The present invention relates to an improvement of an apparatus for irradiating an infrared beam from an infrared transparent solid side to a superposed group formed by superposing transparent solids.

この明細書において「第１層の熱可塑性樹脂部材」とは重ね合わせた熱可塑性樹脂部材のうち最も赤外線ビーム光源側に位置するものを言う。同様に「表層」とは熱可塑性樹脂部材の赤外線光源側の表面を言う。 In this specification, the “first-layer thermoplastic resin member” refers to a superposed thermoplastic resin member located closest to the infrared beam light source. Similarly, the “surface layer” refers to the surface of the thermoplastic resin member on the infrared light source side.

熱可塑性樹脂部材の溶着方法としては、従来から超音波溶着法、高周波溶着法および赤外線透過溶着法が公知であり、実際にも使用されている。しかし前二者にはそれぞれの欠点があるが故に、最近では赤外線透過溶着法が広く使用されるようになっている。 As a method for welding a thermoplastic resin member, an ultrasonic welding method, a high-frequency welding method and an infrared transmission welding method are conventionally known and are actually used. However, because the former two have their respective drawbacks, the infrared transmission welding method has recently been widely used.

この方法にあっては光源として赤外線ビームを用い、支持体に対して２個以上の熱可塑性樹脂部材を重ね合わせ、さらに赤外線透過性固体を重ね合わせて重合せ群を形成し、この重合せ群に対して赤外線透過性固体側から赤外線ビームを照射するものである。 In this method, an infrared beam is used as a light source, two or more thermoplastic resin members are superposed on a support, and an infrared transparent solid is superposed to form a superposition group. An infrared beam is irradiated from the infrared transparent solid side.

より具体的には、図１に示すように、ヒートシンクとして作用する赤外線透過性固体５と２個の熱可塑性樹脂部材３と支持体１とを重ね合わせて重合せ群を形成し、これに透過性固体５側かの赤外線ビーム光源９ら赤外線ビーム１１を照射するものである。 More specifically, as shown in FIG. 1, an infrared transparent solid 5 acting as a heat sink, two thermoplastic resin members 3 and a support 1 are superposed to form a superposed group, which is transmitted through this. The infrared beam 11 is irradiated from the infrared beam light source 9 on the side of the crystalline solid 5.

図２に示すのは赤外線ビーム照射時の重合せ群内部の温度分布であり、一点鎖線で示す曲線１２は赤外線透過性固体５を使用しない場合であり、点線で示す曲線１３は赤外線透過性固体５を使用した場合である。赤外線透過性固体５を使用した場合、第１層目の熱可塑性樹脂部材３の表層での強い赤外線吸収により発生した熱の一部が透過性固体５に放出され、表層の温度が低くなる。一方第１層目の熱可塑性樹脂部材３の内部に到達した赤外線により発生した熱は熱伝導性が低いため、赤外線透過性固体５の影響を受けないので、この表層での温度低下に影響されることがあまりなく、第２層目の熱可塑性樹脂部材３との界面１４（熱可塑性樹脂部材３同士の溶着面）においては高温（溶融温度１５）となる。したがって第１層目の熱可塑性樹脂部材３の表層では熱損傷による表面正常の悪化が抑制される一方、界面１４においては溶着に必要な高温が保たれて短時間で溶着を達成できる。 FIG. 2 shows a temperature distribution inside the superposed group at the time of irradiation with an infrared beam. A curve 12 shown by a one-dot chain line is a case where the infrared transmitting solid 5 is not used, and a curve 13 shown by a dotted line is an infrared transmitting solid. This is a case where 5 is used. When the infrared transparent solid 5 is used, a part of the heat generated by the strong infrared absorption in the surface layer of the thermoplastic resin member 3 of the first layer is released to the transparent solid 5 and the temperature of the surface layer is lowered. On the other hand, the heat generated by the infrared rays reaching the inside of the thermoplastic resin member 3 of the first layer is not affected by the infrared transmissive solid 5 because of its low thermal conductivity. The interface 14 with the second-layer thermoplastic resin member 3 (welded surface between the thermoplastic resin members 3) is at a high temperature (melting temperature 15). Therefore, the surface layer of the thermoplastic resin member 3 of the first layer suppresses deterioration of the normal surface due to thermal damage, while the interface 14 maintains the high temperature necessary for welding and can achieve welding in a short time.

しかし熱可塑性樹脂部材３が長尺または大面積である場合には、これに対応して赤外線透過性固体５も長尺・大面積とする必要があり、設備コストが増大する。 However, when the thermoplastic resin member 3 is long or has a large area, the infrared transmissive solid 5 needs to be long and have a large area corresponding to this, and the equipment cost increases.

この発明の目的は、赤外線透過性固体を用いた熱可塑性樹脂部材溶着装置において、熱可塑性樹脂部材が大型の場合でもそれに伴う赤外線透過性固体の設備コストの増加を抑制することにある。 An object of the present invention is to suppress an increase in equipment cost of an infrared transmitting solid accompanying the thermoplastic resin member welding apparatus using an infrared transmitting solid even when the thermoplastic resin member is large.

このため第１の発明の熱可塑性樹脂部材の赤外線溶着装置にあっては、赤外線透過性固体を熱可塑性樹脂部材より短尺または小面積に構成し、赤外線ビームの照射面積形状を赤外線透過性固体の面積形状と実質的に等しくし、赤外線ビームの照射中、透過性固体を第１層の熱可塑性樹脂部材の表層に沿って少なくとも２方向に赤外線ビーム光源と連動して連続的に移動させることを要旨とするものである。 For this reason, in the infrared welding apparatus for the thermoplastic resin member of the first invention, the infrared transparent solid is configured to be shorter or smaller than the thermoplastic resin member, and the irradiation area shape of the infrared beam is made of the infrared transparent solid. It is substantially equal to the area shape, and during irradiation of the infrared beam, the transmissive solid is continuously moved in conjunction with the infrared beam light source in at least two directions along the surface layer of the thermoplastic resin member of the first layer. It is a summary.

このため第２の発明の熱可塑性樹脂部材の赤外線溶着装置にあっては、赤外線透過性固体を熱可塑性樹脂部材より短尺または小面積に構成し、赤外線ビームの照射面積形状を赤外線透過性固体の面積形状と実質的に等しくし、赤外線ビームの照射中、透過性固体が第１層の熱可塑性樹脂部材の表層に沿って少なくとも２方向に連続的に移動し、これに連動して赤外線ビーム光源の照射方向を連続的に変更することを要旨とする。 For this reason, in the infrared welding apparatus for the thermoplastic resin member of the second invention, the infrared transparent solid is configured to be shorter or smaller than the thermoplastic resin member, and the irradiation area shape of the infrared beam is made of the infrared transparent solid. It is substantially equal to the area shape, and during irradiation of the infrared beam, the transmissive solid continuously moves in at least two directions along the surface layer of the thermoplastic resin member of the first layer, and in conjunction with this, the infrared beam light source The gist is to continuously change the irradiation direction.

一実施例にあっては、赤外線透過性固体を回転により移動させるものである。 In one embodiment, the infrared transparent solid is moved by rotation.

他の実施例にあっては、赤外線透過性固体を摺動により移動させるものである。 In another embodiment, the infrared transparent solid is moved by sliding.

赤外線ビームの照射中赤外線透過性固体を熱可塑性樹脂部材の表層に沿って連続して移動させるので、熱可塑性樹脂部材が長尺・大面積となっても、それに応じて熱可塑性樹脂部材を長尺・大面積とする必要がなく、設備コストが増大しない。 The infrared transparent solid is continuously moved along the surface of the thermoplastic resin member during the irradiation of the infrared beam. Therefore, even if the thermoplastic resin member becomes long and large in area, the thermoplastic resin member is lengthened accordingly. There is no need for a large scale and area, and the equipment cost does not increase.

この発明において用いる支持体１とは、赤外線ビームの照射中に赤外線透過性固体５と熱可塑性樹脂部材３および熱可塑性樹脂部材３同士が安定して接触状態を保つためのものである。その機能を有する限りにおいては、支持体１の材質や形状はどのようなものであってもよい。例えば圧縮力によって塑性変形が生じ難く、適度な剛性を有したスチール、アルミニウム合金、銅合金などの金属ブロック板が用いられる。 The support 1 used in the present invention is for keeping the infrared transmissive solid 5, the thermoplastic resin member 3, and the thermoplastic resin member 3 stably in contact with each other during irradiation with the infrared beam. As long as it has the function, the support 1 may be of any material and shape. For example, a metal block plate such as steel, aluminum alloy, copper alloy or the like having an appropriate rigidity is used which hardly causes plastic deformation due to compressive force.

さらに支持体１はその赤外線ビーム照射側表層がゴム緩衝層であってもよい。厚さが薄いまたは熱収縮性が高い熱可塑性樹脂部材同士を溶着するに当たって、熱可塑性樹脂部材自身の表面起伏などにより赤外線透過性固体５と熱可塑性樹脂部材３および溶着界面同士の物理的接触状態（接触圧力および接触面積）が不足し、溶着後に溶着部でボイドや破れ、顕著な収縮などの欠陥が生じ易い場合がある。このような場合に、支持体１の赤外線ビーム照射側表層がゴム緩衝層であることによって、赤外線透過性固体５と熱可塑性樹脂部材３および溶着界面同士の物理的接触状態が改善されて、溶着後のボイドや破れ、顕著な収縮などの欠陥の発生を抑えることができる。 Further, the support 1 may have a rubber buffer layer on the infrared beam irradiation side surface layer. When welding thermoplastic resin members having a small thickness or high heat shrinkability, a state of physical contact between the infrared transmissive solid 5, the thermoplastic resin member 3, and the welding interface due to surface undulation of the thermoplastic resin member itself. (Contact pressure and contact area) may be insufficient, and defects such as voids, tears, and significant shrinkage may easily occur after welding. In such a case, since the infrared beam irradiation side surface layer of the support 1 is a rubber buffer layer, the physical contact state between the infrared transmissive solid 5, the thermoplastic resin member 3, and the welding interface is improved. It is possible to suppress the occurrence of defects such as subsequent voids, tears, and significant shrinkage.

赤外線透過性固体５としてはセレン亜鉛（ＺｎＳｅ）、硫化亜鉛（ＺｎＳ）、シリコン（Ｓｉ）、ゲルマニウム（Ｇｅ）、サファイア（Ａｌ2Ｏ3）、砒素化ガリウム（ＧａＡｓ）およびマグネシア（ＭｇＯ）などの、熱伝導度１５ｗ／ｍ．Ｋ以上を有する赤外結晶材料が挙げられる。 Examples of the infrared transmissive solid 5 include selenium zinc (ZnSe), zinc sulfide (ZnS), silicon (Si), germanium (Ge), sapphire (Al 2 O 3 ), gallium arsenide (GaAs), and magnesia (MgO). , Thermal conductivity 15 w / m. Infrared crystal materials having K or higher.

さらにこの発明の赤外線溶着装置により溶着できる熱可塑性樹脂部材としては、従来の溶着方法では難溶着性を呈する熱可塑性樹脂部材、つまり高周波帯域での誘電損失が低くかつ軟質であるが故に高周波溶着および超音波溶着のいずれを適用しても溶着が困難である熱可塑性樹脂部材、および高周波帯域で誘電損失が低くかつ融点が高い熱可塑性樹脂部材が挙げられる。かかる熱可塑性樹脂部材の具体例としては、前者としてオレフィン系熱可塑性エラストマー、後者としてはフッ素系樹脂や液晶ポリマーが挙げられる。 Further, as the thermoplastic resin member that can be welded by the infrared welding apparatus of the present invention, a thermoplastic resin member that exhibits poor weldability by the conventional welding method, that is, high-frequency welding and low-loss dielectric loss in the high-frequency band and soft. Examples thereof include a thermoplastic resin member that is difficult to weld by any of ultrasonic welding, and a thermoplastic resin member that has a low dielectric loss and a high melting point in a high frequency band. Specific examples of such thermoplastic resin members include olefin-based thermoplastic elastomers as the former and fluorine-based resins and liquid crystal polymers as the latter.

図３に示すのはこの発明の装置の一実施例であって、赤外線透過性固体が回転により移動するものである。赤外線透過性固体２５は熱可塑性樹脂部材より短尺または小面積であり、その面積形状は赤外線ビームの照射面積形状に実質的に等しい。また赤外線ビームの照射中赤外線透過性固体２５は駆動機構２６により駆動されて、第１層の熱可塑性樹脂部材３の表層に沿って赤外線ビーム光源と連動して少なくとも２方向（典型的には水平・垂直方向）に駆動機構２６に駆動されて移動する（溶着方向２７）ものである。 FIG. 3 shows an embodiment of the apparatus of the present invention, in which the infrared transparent solid moves by rotation. The infrared transmissive solid 25 is shorter or smaller in area than the thermoplastic resin member, and the area shape is substantially equal to the irradiation area shape of the infrared beam. Further, during the irradiation of the infrared beam, the infrared transmissive solid 25 is driven by the drive mechanism 26, and is linked with the infrared beam light source along the surface layer of the thermoplastic resin member 3 of the first layer (typically horizontal). -It moves by being driven by the drive mechanism 26 in the vertical direction (welding direction 27).

図４に示すのはこの発明の装置の他の実施例であって、赤外線透過性固体が摺動により移動するものである。赤外線透過性固体２５は熱可塑性樹脂部材より短尺または小面積であり、その面積形状は赤外線ビームの照射面積形状に実質的に等しい。また赤外線ビームの照射中赤外線透過性固体２５は駆動機構２８により駆動されて、第１層の熱可塑性樹脂部材３の表層に沿って少なくとも２方向（典型的には水平・垂直方向）に駆動機構２８に駆動されて摺動移動し、これに連動して赤外線ビーム光源の照射方向が連続的に変更されるものである。 FIG. 4 shows another embodiment of the apparatus of the present invention, in which the infrared transmitting solid moves by sliding. The infrared transmissive solid 25 is shorter or smaller in area than the thermoplastic resin member, and the area shape is substantially equal to the irradiation area shape of the infrared beam. Further, during the irradiation of the infrared beam, the infrared transmissive solid 25 is driven by the drive mechanism 28 to drive the drive mechanism in at least two directions (typically horizontal and vertical directions) along the surface layer of the thermoplastic resin member 3 of the first layer. The sliding direction is driven by 28, and the irradiation direction of the infrared beam light source is continuously changed in conjunction with this movement.

この発明は熱可塑性樹脂部材の溶着において広く利用されるものである。 This invention is widely used in welding thermoplastic resin members.

この発明を適用する重合せ群の基本的構成を示す模型側面図である。It is a model side view which shows the basic composition of the superposition | stacking group to which this invention is applied. 溶着時の図１に示す重合せ群内部の温度分布を示す模型図である。It is a model figure which shows the temperature distribution inside the superposition | stacking group shown in FIG. 1 at the time of welding. この発明の装置の一実施例の模型側面図である。It is a model side view of one Example of the apparatus of this invention. この発明の装置の他の実施例の模型側面図である。It is a model side view of the other Example of the apparatus of this invention.

符号の説明Explanation of symbols

１ ：支持体
３ ：熱可塑性樹脂部材
５，２５：赤外線透過性固体
９ ：赤外線ビーム光源
１１：赤外線ビーム 1: Support 3: Thermoplastic resin members 5 and 25: Infrared transparent solid 9: Infrared beam light source 11: Infrared beam

Claims (4)

支持体（１）に対して２個以上の熱可塑性樹脂部材（３）を重ね合わせ、さらに第１層目の熱可塑性樹脂部材の表層側に赤外線透過性固体（５）を重ね合わせて形成された重合せ群に対して赤外線透過性固体側から赤外線ビームを照射する装置であって、赤外線透過性固体が熱可塑性樹脂部材より短尺または小面積であって、赤外線ビームの照射面積形状が赤外線透過性固体の面積形状と実質的に等しく、赤外線ビームの照射中、透過性固体が第１層の熱可塑性樹脂部材（３）の表層に沿って少なくとも２方向に赤外線ビーム光源と連動して連続的に移動されることを特徴とする熱可塑性樹脂部材の赤外線溶着装置。 Two or more thermoplastic resin members (3) are superposed on the support (1), and an infrared transmitting solid (5) is superposed on the surface layer side of the first thermoplastic resin member. An apparatus for irradiating an infrared beam to the superposed group from the infrared transparent solid side, wherein the infrared transparent solid is shorter or smaller in area than the thermoplastic resin member, and the irradiation area shape of the infrared beam is infrared transparent. It is substantially equal to the area shape of the conductive solid, and during irradiation of the infrared beam, the transparent solid is continuously interlocked with the infrared beam light source in at least two directions along the surface layer of the thermoplastic resin member (3) of the first layer. An infrared welding apparatus for a thermoplastic resin member, wherein 支持体（１）に対して２個以上の熱可塑性樹脂部材（３）を重ね合わせ、さらに第１層目の熱可塑性樹脂部材の表層側に赤外線透過性固体（５）を重ね合わせて形成された重合せ群に対して赤外線透過性固体側から赤外線ビームを照射する装置であって、赤外線透過性固体が熱可塑性樹脂部材より短尺または小面積であって、赤外線ビームの照射面積形状が赤外線透過性固体の面積形状と実質的に等しく、赤外線ビームの照射中、透過性固体が第１層の熱可塑性樹脂部材（３）の表層に沿って少なくとも２方向に連続的に移動され、これに連動して赤外線ビーム光源の照射方向が連続的に変更されることを特徴とする熱可塑性樹脂部材の赤外線溶着装置。 Two or more thermoplastic resin members (3) are superposed on the support (1), and an infrared transmitting solid (5) is superposed on the surface layer side of the first thermoplastic resin member. An apparatus for irradiating an infrared beam to the superposed group from the infrared transparent solid side, wherein the infrared transparent solid is shorter or smaller in area than the thermoplastic resin member, and the irradiation area shape of the infrared beam is infrared transparent. It is substantially equal to the area shape of the conductive solid, and during irradiation with the infrared beam, the transparent solid is continuously moved in at least two directions along the surface layer of the thermoplastic resin member (3) of the first layer, and interlocked with this. An infrared welding apparatus for a thermoplastic resin member, wherein the irradiation direction of the infrared beam light source is continuously changed. 赤外線透過性固体が摺動により移動することを特徴とする請求項１または２に記載の装置。 The apparatus according to claim 1, wherein the infrared transparent solid moves by sliding. 赤外線透過性固体が摺動により移動することを特徴とする請求項１または２に記載の装置。 The apparatus according to claim 1, wherein the infrared transparent solid moves by sliding.
JP2008024716A 2008-02-05 2008-02-05 Infrared welding apparatus for thermoplastic resin member Pending JP2009184162A (en)

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US12/361,565 US20090294047A1 (en) 2008-02-05 2009-01-29 Method and device for welding thermoplastic resin articles
EP09152036.1A EP2087989B1 (en) 2008-02-05 2009-02-04 Method for welding thermoplastic resin articles
US14/163,138 US20140138023A1 (en) 2008-02-05 2014-01-24 Method and device for welding thermoplastic resin articles

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US9393738B2 (en) 2012-11-06 2016-07-19 Fresenius Medical Care Deutschland Gmbh Device for laser transmission welding and method for laser transmission welding

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JP2004142225A (en) * 2002-10-23 2004-05-20 Terumo Corp Method for fusing sheet material, and molding
JP2005081936A (en) * 2003-09-05 2005-03-31 Tohoku Miyata Kogyo Kk Electric motorbike for running on rail track
JP2005178356A (en) * 2003-08-22 2005-07-07 Leister Process Technologies Planar resin material bonding apparatus
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Publication number Priority date Publication date Assignee Title
JP2004142225A (en) * 2002-10-23 2004-05-20 Terumo Corp Method for fusing sheet material, and molding
JP2005178356A (en) * 2003-08-22 2005-07-07 Leister Process Technologies Planar resin material bonding apparatus
JP2005081936A (en) * 2003-09-05 2005-03-31 Tohoku Miyata Kogyo Kk Electric motorbike for running on rail track
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Publication number Priority date Publication date Assignee Title
US9393738B2 (en) 2012-11-06 2016-07-19 Fresenius Medical Care Deutschland Gmbh Device for laser transmission welding and method for laser transmission welding

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