JPH0419016B2 - - Google Patents

Info

Publication number
JPH0419016B2
JPH0419016B2 JP62026441A JP2644187A JPH0419016B2 JP H0419016 B2 JPH0419016 B2 JP H0419016B2 JP 62026441 A JP62026441 A JP 62026441A JP 2644187 A JP2644187 A JP 2644187A JP H0419016 B2 JPH0419016 B2 JP H0419016B2
Authority
JP
Japan
Prior art keywords
heating element
nozzle
welded
lead wires
welding
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.)
Expired - Lifetime
Application number
JP62026441A
Other languages
Japanese (ja)
Other versions
JPS63194930A (en
Inventor
Atsushi Igarashi
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)

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、熱可塑性プラスチツクに形成された
鉄リベツトと同様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ツク用溶着装
置に関する。Detailed Description of the Invention (Industrial Application Field) The present invention heats and melts a welded part consisting of a protrusion similar in shape to an iron rivet formed on a thermoplastic plastic, and after welding the welded part. This invention relates to a plastic welding device that cools and hardens welded parts.

（従来の技術） 従来、プラスチツ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 Unexamined Utility Model Publication No. 56-46721, Japanese Utility Model Application No. 168312-1980, Japanese Utility Model Application No. 59-21920, and Japanese Utility Model Application No. 59-88
Some are described in various publications such as -46213.

一般に、プラスチツ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 welding a plastic weld to a desired location by heating and applying pressure, it is desirable to quickly cool and harden the weld to maintain the quality and dignity of the weld. ,
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 published in 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。したがつて、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, the above-mentioned Japanese Patent Application Laid-open No. 56-46721 has the following:
Electrically heats the heating element that comes into contact with the part to be welded,
When cooling, the structure is such that the power is cut off and the heating element waits for natural cooling. 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（登録商標）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（登録商標）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 (registered trademark) sheet, and in order to cool this heating element, the Teflon (registered trademark) sheet on the front side is It is designed to bring cooling air into contact with it. 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 structure of the above-mentioned Utility Model Application Publication No. 59-21920 is similar to that of the above-mentioned Japanese Patent Publication No. 54-40270,
I have a similar problem.

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。 Moreover, the thing of the above-mentioned Utility Model Application Publication No. 59-46213 is
It has a structure similar to that of the above-mentioned Japanese Patent Application Laid-open No. 56-46721, and includes 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ツ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 in order to solve the above-mentioned conventional problems, and its purpose is to be able to accurately heat the welded part, and to quickly and sufficiently heat the welded part. It is an object of the present invention to provide a welding device for plastics that has a cooling ability and has a compact overall structure.

（問題点を解決するための手段） 本発明のプラスチツク用溶着装置は、プラスチ
ツ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 the 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） プラスチツ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。以下、同様の動作が繰り返される。(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. When welding is achieved by the pressure of the heating element and the welded parts are to be cooled, the power supply from each of the lead wires is stopped, and cooling air is injected from the nozzles to cool the welded parts. The welded portion is cooled via the heating element. When welding again,
Air injection from the nozzle is stopped, and energization through the pair of lead wires is restarted. 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
ラスチツク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ツプ状発熱体から
なつており、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 at one end a contact surface 4 for contacting a welded part 3 of a plastic 2 and heating and melting it. In this embodiment, the heating element 5 is
It consists of a metal cup-shaped heating element that generates heat when energized, and has the abutting surface 4 on the outer surface of the concave portion at 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線６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 lead wires 6 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 connected to appropriate power sources and are used to cause the heating element 5 to 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
端が挿入されている。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
リード線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 inserted 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 wire 6.

ノズル７および各リード線６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、本実施例では電気的に絶
縁性を有する第１および第２の断熱材料９，１０
からなつている。 The nozzle 7 and each lead wire 6 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 and 10 that are electrically insulating.
It is made up of

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ツク
等からなる筒状部材であつて、ノズル７の先端部
が嵌入される貫通孔１１を有している。 The first heat insulating material 9 is the heating element 5 of the nozzle 7.
The part inserted inside is fixed to the heating 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 11 into which the tip of the nozzle 7 is fitted.

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, a heat-resistant synthetic resin, and also covers the connecting portion of each lead wire 6 to the heating element 5 and a part of the exposed portion of the nozzle from the heating element 5. is covered and fixed in a sealed state. The second heat insulating material 10 mainly serves to prevent short circuits between the lead wires 6, but may be omitted if there is no risk of short circuits.

前記発熱体５には、ノズル７から噴射されて同
発熱体５の冷却を行なつ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
複数のスリツト１３からなり、各スリツト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 provided with a passage 12 through which air, after being injected from the nozzle 7 and cooling the heating element 5, escapes to the outside. Passage 12
In this embodiment, the slit 13 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、例えばプラスチツク２
を載置する溶着作業テーブル１４上の昇降装置１
５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１７、昇降フレーム
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。 Welding apparatus 1 of the present invention configured as described above
For example, as shown in FIG.
Lifting device 1 on the welding work table 14 on which the
It is used by being attached to 5th grade. Lifting device 15
This is a known structure having a column 16, a lifting frame 17, a height adjustment device 18 for the lifting frame 17, a cylinder 19, etc., and the welding device 1 attached to the lifting frame 17 is moved above the work table 14 by the cylinder 19 etc. The function is to move it up and down.

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の少なくと
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）に達する弾性チユーブ２０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 elevating frame 17 or the like, at least one of the nozzle 7 and the support member 8 is fixed to the elevating frame 17 or the like. In this state, an elastic tube 20 and the like reaching a cooling air supply source (not shown) is connected to the nozzle 7, and each lead wire 6 is connected to a power source (not shown).

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.

上記溶着装置１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線６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がプラスチツク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図ではプラスチツク２を
他の部材２１へ固着するための鉄リベツト状ボス
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。 The welding method using the welding device 1 will be explained as follows.
First, each lead wire 6 is energized to cause the heating element 5 to generate heat. Next, when the heating element 5 reaches a sufficient temperature, its contact surface 4 is pressed against the welded part 3 of the plastic 2, and the welded part 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,
Therefore, after the welded part 3 is cooled and hardened, it exits 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
被溶着部を的確に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。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もので、全体構造がコン
パクトになる等の利点が得られる。(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 exclusively used. Since the liquid is injected to the heating element through the nozzle and flows through the heating element, the heating element can be cooled quickly and sufficiently. 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 drawings]

第１図は、本発明の一実施例に係るプラスチツ
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……プラスチツク、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、１１…
…貫通孔、１２……通路、１３……スリツト。 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. 1... Welding device, 2... Plastic, 3...
Part to be welded, 4... Contact surface, 5... Heating element, 6...
Lead wire, 7... Nozzle, 8... Support member, 9...
...First heat insulating material, 10... Second heat insulating material, 11...
...through hole, 12...passage, 13...slit.

Claims (1)

【特許請求の範囲】 １ プラスチツ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ツク用溶着装
置。 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項記載のプラスチツク用溶着
装置。[Scope of Claims] 1. A heating element having at one end a contact surface for contacting a part of plastic to be welded to heat and melt it, and electrically connected to the other end of the heating element, and a pair of lead wires that conduct electricity to generate heat in the heating element; comprising a nozzle that injects air into the interior, and a support member that fixes the nozzle and at least this nozzle of the pair of lead wires at a predetermined position with respect to the heating element,
A welding device for plastics, 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. 2. The supporting member connects an insulating first heat insulating material provided inside the heating element so as to fix the nozzle to the heating element and a connection portion of each of the lead wires to the heating element, and 2. The plastic welding apparatus according to claim 1, further comprising a second insulating material which 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 JPS63194930A (en) 1988-08-12
JPH0419016B2 true 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)

Families Citing this family (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.
JP2005001268A (en) * 2003-06-12 2005-01-06 Munekata Co Ltd Thermowelding equipment used for thermoplastic resin molded article
DE102009020180A1 (en) 2009-05-06 2010-11-11 Maschinenfabrik Spaichingen Gmbh Device for joining objects via at least one heat-plastifiable connecting element
JP5043064B2 (en) * 2009-05-20 2012-10-10 本田技研工業株式会社 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
JPS63194930A (en) 1988-08-12

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