JPS63194930A - Welding device for plastic - Google Patents

Welding device for plastic

Info

Publication number
JPS63194930A
JPS63194930A JP62026441A JP2644187A JPS63194930A JP S63194930 A JPS63194930 A JP S63194930A JP 62026441 A JP62026441 A JP 62026441A JP 2644187 A JP2644187 A JP 2644187A JP S63194930 A JPS63194930 A JP S63194930A
Authority
JP
Japan
Prior art keywords
heating element
nozzle
welded
heat generating
generating element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62026441A
Other languages
Japanese (ja)
Other versions
JPH0419016B2 (en
Inventor
Atsushi Igarashi
敦 五十嵐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tohoku Munekata Co Ltd
Original Assignee
Tohoku Munekata Co Ltd
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 Tohoku Munekata Co Ltd filed Critical Tohoku Munekata Co Ltd
Priority to JP62026441A priority Critical patent/JPS63194930A/en
Publication of JPS63194930A publication Critical patent/JPS63194930A/en
Publication of JPH0419016B2 publication Critical patent/JPH0419016B2/ja
Granted legal-status Critical Current

Links

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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • 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
    • B29C65/228—Heated wire resistive ribbon, resistive band or resistive strip characterised by the means for electrically connecting the ends of said heated wire, resistive ribbon, resistive band or resistive strip
    • 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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • 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
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—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
    • B29C66/8181—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 cooling constructional aspects
    • B29C66/81811—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 cooling constructional aspects of the welding jaws
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/847—Drilling standard machine type
    • 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
    • B29C35/16—Cooling
    • B29C2035/1658—Cooling using gas
    • 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
    • B29C66/349—Cooling the welding zone on the welding spot
    • B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
    • 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
    • B29C66/81261—Thermal properties, e.g. thermal conductivity, thermal expansion coefficient
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives

Landscapes

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

Abstract

PURPOSE:To make it possible to accurately heat a part to be welded and quickly and fully cool the part to be welded and consequently realize a compactness in the total structure by a method wherein a supporting member, which fixes a nozzle to the predetermined position with respect to a heat generating element, is equipped and, in addition, a passage, through which air sent from a nozzle is escaped outside after cooling the heat generating element, is provided in the heat generating element. CONSTITUTION:A first heat insulating material 9 is fixed to the portion, which is inserted in the inside of a heat generating element 5, of a nozzle 7 to the heat generating element 5. In the heat generating element 5, a passage 12 to escape the air to the outside is provided, which has been jetted from the nozzle 7 and cooled said heat generating element 5. The abutting surface 4 of the heat generating element 5, which is heated up to a sufficient temperature by energizing through lead wires 6, is pressed to the part to be welded 3 of a plastic 2, resulting in heating and melting the part to be welded 3. After the part to be welded 3 is deformed into the predetermined shape and while the abutting surface 4 keeps on pressing the part to be welded 3, the energizing to the heat generating element 5 is cut off and cooling air is jetted from the nozzle 7. The cooling air cools down the heat generating element 5 and consequently cools down and hardens the part to be welded 3 and finally escapes outside through a passage 12.

Description

【発明の詳細な説明】 （産業上の利用分舒） 本発明は、熱可塑性プラスチックに形成された鉄リベッ
トと同種形状の突起等からなる被溶着部を加熱溶解させ
るとともに、それの溶着後に当該被溶着部を冷却硬化さ
せるプラスチック用溶着装置に関する。Detailed Description of the Invention (Industrial Application) The present invention heats and melts a welded part consisting of a protrusion of the same shape as an iron rivet formed in a thermoplastic plastic, and after welding the welded part, The present invention relates to a plastic welding device that cools and hardens parts to be welded.

（従来の技術） 従来、プラスチック用溶着装置としては、例えば特公昭
５４−４０２７０号、特開昭５６−４６７２１号、実開
昭５９−１６８３１２号、実開昭５９−２１９２０号、
実開昭５９−４６２１３号等の各公報に記載されたもの
がある。(Prior Art) Conventionally, as a welding device for plastics, for example, Japanese Patent Publication No. 54-40270, Japanese Patent Application Publication No. 56-46721, Japanese Utility Model Application Publication No. 59-168312, Japanese Utility Model Application Publication No. 59-21920,
Some are described in various publications such as Utility Model Application Publication No. 59-46213.

一般に、プラスチックの被溶着部を加熱および加圧によ
り所望箇所へ溶着させた後は、当該被溶着部の品質およ
び品位を保つために当該被溶着部を速やかに冷却硬化さ
せることが望まれており、この目的のために上記の各公
報において種々な溶着装置が提案されている。Generally, after a plastic welded part is welded to a desired location by heating and pressure, it is desirable to quickly cool and harden the welded part in order to maintain the quality and dignity of the welded part. For this purpose, various welding devices have been proposed in the above-mentioned publications.

しかし、上記特公昭５４−４０２７０号公報のものは、
ボス等の被溶着部を熱風により加熱軟化させ、次にそれ
をポンチで押圧し、次にその状態で冷風により同パンチ
と被溶着部の周囲を冷却する構造であるため、熱風によ
り被溶着部以外の箇所も加熱されて品質を劣化させる問
題があり、また、冷却を行なう際には、冷風が熱風の通
路と同一の通路へ通されるので、その冷却効果が低減さ
れる問題もある。なお、冷風の通路を熱風の通路とは別
に設けると、全体構造が大きくなる問題が生じる。However, the one of the above-mentioned Japanese Patent Publication No. 54-40270,
The part to be welded, such as a boss, is heated and softened with hot air, then pressed with a punch, and then cold air is used to cool the area around the punch and the part to be welded. There is a problem that other parts are also heated and the quality deteriorates, and when cooling, there is also a problem that the cooling effect is reduced because the cold air is passed through the same path as the hot air path. Note that if the cold air passage is provided separately from the hot air passage, a problem arises in that the overall structure becomes larger.

次に、前記特開昭５６−４６７２１号公報のものは、被
溶着部に当接させる発熱体を電気的に加熱し、冷却時に
は、それの通電を遮断して同発熱体の自然冷却を待つ構
造のものである。したがって、冷却に時間がかかり、し
かも冷却が不充分になるおそれがある。Next, in the method disclosed in JP-A No. 56-46721, a heating element that is brought into contact with the welded part is electrically heated, and when cooling the heating element, electricity is cut off and the heating element is allowed to cool naturally. It is of structure. Therefore, it takes time to cool down, and there is a possibility that cooling may be insufficient.

前記実開昭５９−１６８３１２号公報のものは、発熱体
がテフロンシートで被覆されたニクロム線からなり、こ
の発熱体を冷却するには、表面側のテフロンシートに冷
却エアーを接触させるようにしている。しかし、冷却エ
アーが発熱体を貫通して流れることはできない構造であ
るので、充分に冷却されないという問題がある。In the device disclosed in Japanese Utility Model Application Publication No. 59-168312, the heating element is made of a nichrome wire covered with a Teflon sheet, and in order to cool the heating element, cooling air is brought into contact with the Teflon sheet on the front side. There is. However, since the structure does not allow cooling air to flow through the heating element, there is a problem that the heating element is not sufficiently cooled.

前記実開昭５９−２１９２０号公報のものは、前記特公
昭５４−４０２７０号公報のものと同様構造であり、同
様の問題を有している。The device disclosed in Japanese Utility Model Publication No. 59-21920 has the same structure as the device disclosed in Japanese Patent Publication No. 54-40270, and has the same problems.

また、前記実開昭５９−４６２１３号公報のものは、前
記特開昭５６−４６７２１号公報のものと同様の構造を
有し、同様の問題を内包している。Furthermore, the device disclosed in Japanese Utility Model Application Laid-open No. 59-46213 has a structure similar to that of Japanese Utility Model Application Publication No. 56-46721, and has the same problems.

（発明が解決しようとする問題点） 本発明は、上記した従来の問題を解決するためになされ
たもので、その目的は、被溶着部を的確に加熱すること
ができると、ともに、迅速かつ充分に冷却する能力があ
り、さらに全体構造がコンパクトになるプラスチック用
溶着装置を提供することにある。(Problems to be Solved by the Invention) The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to be able to accurately heat the part to be welded, and to quickly and It is an object of the present invention to provide a welding device for plastics that has sufficient cooling ability and has a compact overall structure.

（問題点を解決するための手段） 本発明のプラスチック用溶着装置は、プラスチックの被
溶着部に当接してそれを加熱溶解させるための当接面を
一端部に有する発熱体と、この発熱体の他端部側に電気
的に接続され、且つ同発熱体を発熱させるために通電を
行う一対のリード線と、前記発熱体の前記他端部側から
同発熱体の内部へ挿入され、且つ同発熱体を冷却するた
めに同発熱体の内部へエアーを噴射するノズルと、この
ノズルおよび前記一対のリード線のうちの少なくともこ
のノズルを前記発熱体に対して所定の位置に固定する支
持部材とを具備し、前記発熱体には、同発熱体を冷却し
た後の前記ノズルからのエアーを外部へ逃がす通路が設
けられていることを特徴とする。(Means for Solving the Problems) The plastic welding apparatus of the present invention includes a heating element having a contact surface at one end for contacting a part of plastic to be welded and heating and melting the part, and this heating element. a pair of lead wires electrically connected to the other end side and energized to generate heat in the heating element; and a pair of lead wires inserted into the inside of the heating element from the other end side of the heating element, and a nozzle that injects air into the heating element to cool the heating element; and a support member that fixes the nozzle and at least the nozzle of the pair of lead wires at a predetermined position relative to the heating element. The heating element is characterized in that the heating element is provided with a passage through which air from the nozzle after cooling the heating element escapes to the outside.

（作　用） プラスチックの被溶着部の加熱溶着を行なう際には、前
記発熱体が前記一対のリード線からの通電により発熱状
態にされる。同発熱体の押圧により溶着が達成されて、
前記被溶着部を冷却させる際には、前記各リード線から
の通電が停止されるとともに、前記ノズルから冷却用エ
アーが噴射され、冷却された前記発熱体を介して前記被
溶着部の冷却が行なわれる。再び溶着を行なう際には、
前記ノズルからのエアー噴射が停止されるとともに、前
記一対のリード線による通電が再開される。(Function) When carrying out heat welding of plastic parts to be welded, the heating element is brought into a heat generating state by being energized from the pair of lead wires. Welding is achieved by the pressure of the heating element,
When cooling the part to be welded, the power supply from each lead wire is stopped, and cooling air is injected from the nozzle to cool the part to be welded through the cooled heating element. It is done. When welding again,
Air injection from the nozzle is stopped, and energization through the pair of lead wires is restarted.

以下、同様の動作が繰り返される。Thereafter, similar operations are repeated.

（実施例） 以下、第１図〜第３図に示す一実施例に基づいて本発明
を説明する。(Example) Hereinafter, the present invention will be described based on an example shown in FIGS. 1 to 3.

各図において、本発明による溶着装置１は、プラスチッ
ク２の被溶着部３に当接してそれを加熱溶解させるため
の当接面４を一端部に有する発熱体５を備えている。発
熱体５は、本実施例では、通電により発熱する金属製の
カップ状発熱体からなっており、その一端部すなわち底
部側の凹部の外表面に前記当接面４を有している。In each figure, a welding device 1 according to the present invention is equipped with a heating element 5 having a contact surface 4 at one end for contacting a welded part 3 of a plastic 2 and heating and melting it. In this embodiment, the heating element 5 is a cup-shaped metal heating element that generates heat when energized, and has the contact surface 4 on the outer surface of the concave portion on one end thereof, that is, on the bottom side.

また、発熱体５には、当接面４から離れた他端部側に一
対のリード＄９１８が溶接等により電気的に接続されて
いる。リード線６は、それぞれ適宜の電源へ接続され、
発熱体５を発熱させるために使用される。Further, a pair of leads 918 are electrically connected to the heating element 5 at the other end thereof away from the contact surface 4 by welding or the like. The lead wires 6 are each connected to an appropriate power source,
It is used to make the heating element 5 generate heat.

次に、発熱体５の他端部側には、同発熱体５の内部へ冷
却エアーを吹き込むためのノズル７の先端が押入されて
いる。ノズル７は、本実施例では比較的細い金属管から
なり、発熱体５の外側へ各リード綿６とほぼ平行に突出
している。Next, the tip of a nozzle 7 for blowing cooling air into the inside of the heating element 5 is pushed into the other end side of the heating element 5. In this embodiment, the nozzle 7 is made of a relatively thin metal tube, and protrudes to the outside of the heating element 5 substantially parallel to each lead cotton 6.

ノズル７および各リードｓ６は、支持部材８により発熱
体５に対して所定の位置関係に固定されている。支持部
材８は、本実施例ではｆ４気的に絶縁性を有する第１お
よび第２の断熱材料９，１゜からなっている。The nozzle 7 and each lead s6 are fixed in a predetermined positional relationship with respect to the heating element 5 by a support member 8. In this embodiment, the support member 8 is made of first and second heat insulating materials 9,1° having thermally insulating properties.

第１断熱材料９は、ノズル７のうち、発熱体５の内側へ
挿入された部分を発熱体５へ固定している。第１断熱材
料９は、本実施例ではセラミック等からなる筒状部材で
あって、ノズル７の先端部が嵌入される貫通孔１）を有
している。The first heat insulating material 9 fixes a portion of the nozzle 7 that is inserted inside the heat generating element 5 to the heat generating element 5 . In this embodiment, the first heat insulating material 9 is a cylindrical member made of ceramic or the like, and has a through hole 1) into which the tip of the nozzle 7 is inserted.

第２断熱材料１０は、本実施例では例えば耐熱性合成樹
脂等からなるとともに、各リード線６のうちの発熱体５
との接続部と、発熱体５からのノズルの露出部の一部と
を密閉状態に被覆固定している。第２断熱材料１０は、
主にリード線６同士が短絡するのを防止する役目をして
いるが、そのおそれがない場合は、省略されることも可
能である。In this embodiment, the second heat insulating material 10 is made of, for example, heat-resistant synthetic resin, and the heat generating element 5 of each lead wire 6
The connection part with the heating element 5 and a part of the exposed part of the nozzle from the heating element 5 are covered and fixed in a sealed state. The second heat insulating material 10 is
It mainly serves to prevent the lead wires 6 from being short-circuited, but if there is no risk of short-circuiting, it may be omitted.

前記発熱体５には、ノズル７から噴射されて同発熱体５
の冷却を行なった後のエアーを外部へ逃がすための通路
１２が設けられている。通路１２は、本実施例ではノズ
ル７とほぼ平行に延在する複数のスリット１３からな秒
、各スリット１３の一部は支持部材８により被覆されて
いる。The heating element 5 is injected from the nozzle 7 to the heating element 5.
A passage 12 is provided for allowing air to escape to the outside after cooling. In this embodiment, the passage 12 is made up of a plurality of slits 13 extending substantially parallel to the nozzle 7 , and a portion of each slit 13 is covered by the support member 8 .

上記のように構成された本発明の溶着装置１は、第３図
に示すように、例えばプラスチック２を載置する溶着作
業テーブル１４上の昇降装Ｗ１５等へ取り付けられて使
用される。昇降装置１５は、支柱１６、昇降フレーム１
７、ｉｌｌフレーム１７用高さ調節装置１８、シリンダ
１９等を有する既知構造のもので、昇降フレーム１７に
取り付けられた溶着装置１をシリンダ１９等により作業
テーブル１４の上方で上下動させる役目をする。As shown in FIG. 3, the welding apparatus 1 of the present invention configured as described above is used by being attached to, for example, a lifting device W15 on the welding work table 14 on which the plastic 2 is placed. The lifting device 15 includes a column 16 and a lifting frame 1.
7. It has a known structure having a height adjustment device 18 for the ill frame 17, a cylinder 19, etc., and serves to move the welding device 1 attached to the elevating frame 17 up and down above the work table 14 by the cylinder 19 etc. .

溶着装置１を昇降フレーム１７等に取り付ける場合には
、ノズル７および支持部材８の少な（とも一方が同昇降
フレーム１７等に固着される。その状態でノズル７には
冷却エアー供給源（図示せず）に達する弾性チューブ２
０等が接続され、かつ各リード線６は電源（図示せず）
へ接続される。When the welding device 1 is attached to the lifting frame 17, etc., one of the nozzles 7 and the support member 8 (one of them is fixed to the lifting frame 17, etc.).In this state, the nozzle 7 is connected to a cooling air supply source (not shown). Elastic tube 2 reaching
0 etc. are connected, and each lead wire 6 is connected to a power source (not shown).
connected to.

発熱体５による加熱操作およびノズル７による冷却操作
は、手動、または自動制御装置もしくは半自動制御装置
により制御される。The heating operation by the heating element 5 and the cooling operation by the nozzle 7 are controlled manually or by an automatic or semi-automatic controller.

上記溶着装Ｍ１による溶着方法を説明すると、まず発熱
体５を発熱させるために各リードｓ６により通電が行な
われる。次に、充分な温度に達した発熱体５は、その当
接面４がプラスチック２の被溶着部３へ押しつけられ、
被溶着部３を加熱溶解させる。次に、被溶着部３が所定
形状に変形した後、当接部４が被溶着部３に加圧してい
る間に、発熱体５への通電が遮断されるとともに、ノズ
ル７から第１図の矢印で示すように冷却エアーが噴射さ
れる。冷却エアーは発熱体５を冷却し、それゆえ被溶着
部３を冷却硬化させた後に、通路１２から外部へ退出す
る。その結果、溶着作業が終了し、発熱体５は被溶着部
３から遠ざけられるとともに、必要ならば次の溶着作業
を行なうために再度加熱され、以下同様の動作が繰り返
される。被溶着部３は、第１図ではプラスチック２を他
の部材２１へ固着するための鉄リベット状ボスとして示
されているけれども、それに限定されるものではない。To explain the welding method using the welding device M1, first, electricity is applied through each lead s6 in order to cause the heating element 5 to generate heat. Next, the heating element 5 that has reached a sufficient temperature is pressed with its contact surface 4 against the welded part 3 of the plastic 2,
The welded portion 3 is heated and melted. Next, after the welded part 3 is deformed into a predetermined shape, while the contact part 4 is pressurizing the welded part 3, the power to the heating element 5 is cut off, and the nozzle 7 is Cooling air is injected as shown by the arrow. The cooling air cools the heating element 5 and thus cools and hardens the welded part 3 before exiting from the passage 12 to the outside. As a result, the welding operation is completed, the heating element 5 is moved away from the welded part 3, and if necessary, it is heated again for the next welding operation, and the same operation is repeated thereafter. Although the welded portion 3 is shown in FIG. 1 as an iron rivet-like boss for fixing the plastic 2 to another member 21, it is not limited thereto.

（発明の効果） 以上説明したように、本発明によると、発熱体が直接被
溶着部を加熱・加圧する構造であるから被溶着部を的確
ζこ加熱溶解させることができ、また冷却エアーは専用
のノズルを介して発熱体へ噴射され、しかも発熱体を貫
通して流動されるので、迅速かつ充分に発熱体を冷却さ
せることができる。(Effects of the Invention) As explained above, according to the present invention, since the heating element directly heats and pressurizes the welded part, the welded part can be accurately heated and melted, and the cooling air is Since it is injected onto the heating element through a dedicated nozzle and flows through the heating element, the heating element can be cooled quickly and sufficiently.

さらに、ノズルは発熱体へ挿入されて同発熱体と一体化
されているので、全体構造がコンパクトになる等の利点
が得られる。Furthermore, since the nozzle is inserted into and integrated with the heating element, advantages such as a compact overall structure can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明の一実施例に係るプラスチック用溶着
装置の縦断面図、第２図は第１図のものの要部の分解斜
視図、第３図は第１図の溶着装置を例えばプレス形の操
作装置へ取り付けた状態の概略立面図である。 １・・・溶着装置、２・・・プラスチック、３・・・被
溶着部、４・・・当接面、５・・・発熱体、６・・・リ
ード線、７・・・ノズル、８・・・支持部材、９・・・
第１断熱材料、１０・・・第２断熱材料、１）・・・貫
通孔、１２・・・通路、１３・・・スリブ　ト。FIG. 1 is a longitudinal cross-sectional view of a plastic welding device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the main parts of the welding device shown in FIG. 1, and FIG. FIG. 3 is a schematic elevational view of the device attached to a press-type operating device. DESCRIPTION OF SYMBOLS 1... Welding device, 2... Plastic, 3... Part to be welded, 4... Contact surface, 5... Heating element, 6... Lead wire, 7... Nozzle, 8 ...Supporting member, 9...
First heat insulating material, 10... Second heat insulating material, 1)... Through hole, 12... Passage, 13... Slib.

Claims (2)

【特許請求の範囲】[Claims] （１）プラスチックの被溶着部に当接してそれを加熱溶
解させるための当接面を一端部に有する発熱体と、この
発熱体の他端部側に電気的に接続され、且つ同発熱体を
発熱させるために通電を行う一対のリード線と、前記発
熱体の前記他端部側から同発熱体の内部へ挿入され、且
つ同発熱体を冷却するために同発熱体の内部へエアーを
噴射するノズルと、このノズルおよび前記一対のリード
線のうちの少なくともこのノズルを前記発熱体に対して
所定の位置に固定する支持部材とを具備し、前記発熱体
には、同発熱体を冷却した後の前記ノズルからのエアー
を外部へ逃がす通路が設けられていることを特徴とする
プラスチック用溶着装置。(1) A heating element having a contact surface at one end for contacting a part of plastic to be welded to heat and melt it; and a heating element electrically connected to the other end of the heating element; a pair of lead wires that are energized to generate heat; and a pair of lead wires that are inserted into the heating element from the other end side of the heating element, and that supply air into the heating element to cool the heating element. The heating element includes a nozzle for ejecting water, and a support member that fixes the nozzle and at least one of the pair of lead wires at a predetermined position with respect to the heating element, and the heating element is provided with a support member for cooling the heating element. A welding device for plastics, characterized in that a passage is provided for allowing air from the nozzle to escape to the outside after the welding. （２）前記支持部材が、前記ノズルを前記発熱体に固定
するよう前記発熱体の内部に設けられた絶縁性の第１断
熱材料と、前記各リード線のうちの前記発熱体との接続
部、および前記発熱体からの前記ノズルの露出部の一部
を密閉状態に被覆する絶縁性の第２断熱材料とからなる
ことを特徴とする特許請求の範囲第１項記載のプラスチ
ック用溶着装置。(2) The supporting member connects a first insulating material provided inside the heating element so as to fix the nozzle to the heating element and the heating element of each of the lead wires. 2. The plastic welding apparatus according to claim 1, further comprising: a second insulating material that seals a part of the exposed portion of the nozzle from the heating element.
JP62026441A 1987-02-09 1987-02-09 Welding device for plastic Granted JPS63194930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62026441A JPS63194930A (en) 1987-02-09 1987-02-09 Welding device for plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62026441A JPS63194930A (en) 1987-02-09 1987-02-09 Welding device for plastic

Publications (2)

Publication Number Publication Date
JPS63194930A true JPS63194930A (en) 1988-08-12
JPH0419016B2 JPH0419016B2 (en) 1992-03-30

Family

ID=12193595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62026441A Granted JPS63194930A (en) 1987-02-09 1987-02-09 Welding device for plastic

Country Status (1)

Country Link
JP (1) JPS63194930A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629785A3 (en) * 1993-06-01 1995-03-01 Munekata Tohoku Kk Mounting components in plastic casings.
EP1488913A2 (en) * 2003-06-12 2004-12-22 Munekata Co. Ltd. Welding of thermoplastic resin products.
JP2010272313A (en) * 2009-05-20 2010-12-02 Honda Motor Co Ltd Fuel cell
US8689431B2 (en) 2009-05-06 2014-04-08 Maschinenfabrik Spaichingen Gmbh Apparatus for the connection of articles via at least one connection element plasticizable by heat
DE102016101945B4 (en) * 2015-12-21 2019-03-28 Metrik Sondermaschinenbau e.K. Hot riveting stamp and hot riveting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629785A3 (en) * 1993-06-01 1995-03-01 Munekata Tohoku Kk Mounting components in plastic casings.
EP1488913A2 (en) * 2003-06-12 2004-12-22 Munekata Co. Ltd. Welding of thermoplastic resin products.
EP1488913A3 (en) * 2003-06-12 2007-04-11 Munekata Co. Ltd. Welding of thermoplastic resin products.
US8689431B2 (en) 2009-05-06 2014-04-08 Maschinenfabrik Spaichingen Gmbh Apparatus for the connection of articles via at least one connection element plasticizable by heat
JP2010272313A (en) * 2009-05-20 2010-12-02 Honda Motor Co Ltd Fuel cell
DE102016101945B4 (en) * 2015-12-21 2019-03-28 Metrik Sondermaschinenbau e.K. Hot riveting stamp and hot riveting device

Also Published As

Publication number Publication date
JPH0419016B2 (en) 1992-03-30

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