JPS6198528A - Method of high-frequency weldering - Google Patents

Method of high-frequency weldering

Info

Publication number
JPS6198528A
JPS6198528A JP59220121A JP22012184A JPS6198528A JP S6198528 A JPS6198528 A JP S6198528A JP 59220121 A JP59220121 A JP 59220121A JP 22012184 A JP22012184 A JP 22012184A JP S6198528 A JPS6198528 A JP S6198528A
Authority
JP
Japan
Prior art keywords
work
skin material
pressure
electrode
upper electrode
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.)
Pending
Application number
JP59220121A
Other languages
Japanese (ja)
Inventor
Masami Fujiwara
藤原　正己
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP59220121A priority Critical patent/JPS6198528A/en
Publication of JPS6198528A publication Critical patent/JPS6198528A/en
Pending 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • 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
    • B29C66/80—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
    • B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Abstract

PURPOSE:To obviate occurrence of a blurred pattern or defective bonding even if a work has a curved surface, by pressurizing a pressurizing electrode through the hollow section thereof using a fluid to pressurize the work so that a pressure is applied uniformly to every part of the work. CONSTITUTION:A work W is placed between a pair of electrodes 1, 2 with a skin material w1 of the work (W) upside, and an oil is forced into the hollow section 5 of the upper electrode 1 via an oil injection pipe 6. Then the pressure of this oil works on the electrode 1 so that the pressure may be equally applied to every part of the work W. Then a high-frequency voltage of about 40-70MHz from a high-frequency power source 7 is applied between the electrodes 1, 2. Then a high-frequency electric field acts on the work W, resulting in an dielectric loss in the skin material w1 so that the skin material w1 softens due to the internal heat built-up. Therefore, if a profile is formed on the upper electrode 1, the profile will be copied to the surface of the skin material w1. Further, if an additional skin is inserted between the upper electrode 1 and the work W, it will be fused to the work W.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は例えば自動車のドアトリム等の内装製品の表面
に模様を付したり、或いは別表皮を溶着したりするとき
に利用される高周波多エルダ加工法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is a high-frequency multi-layer laser which is used, for example, to add patterns to the surface of interior products such as automobile door trims, or to weld separate skins. Regarding processing methods.

（従来の技術） 従来、塩化ビニル等の表皮材を備えた被加工物を一対の
電極間に挟み、この一対の電極によって被加工物に加圧
しつつ高周波電界を作用させ、表皮材中に誘電体損失を
生じさせることにより内部発熱させて、この表皮材を溶
融する高周波ウエルダ加工法が知られている。この加工
法において、例えば一対の電極のうちの表皮材に圧接さ
れるものに模様を施しておけば１、表皮材にこの模様を
転写することができ、また。(Prior art) Conventionally, a workpiece with a skin material such as vinyl chloride is sandwiched between a pair of electrodes, and a high-frequency electric field is applied to the workpiece while pressurizing it with the pair of electrodes to create a dielectric in the skin material. A high-frequency welding method is known in which the skin material is melted by generating internal heat by causing body loss. In this processing method, for example, if a pattern is applied to one of the pair of electrodes that is pressed against the skin material, the pattern can be transferred to the skin material.

被加工物と電極との間に別表皮材を挿し込んでおけば、
被加工物に対し表皮材と溶着することができるものであ
る。If a separate skin material is inserted between the workpiece and the electrode,
It is capable of welding the skin material to the workpiece.

（発明が解決しようとする問題点） しかし、この加工法により曲面形状を有した被加工物の
加工を行う場合には、電極による加圧力が被加工物に対
して均一にかかりにくり。(Problems to be Solved by the Invention) However, when processing a workpiece having a curved surface shape using this processing method, the pressure applied by the electrode is not uniformly applied to the workpiece.

そのため模様ムラや接着不良等を起すという問題があっ
た。This has caused problems such as pattern unevenness and poor adhesion.

したがって、本発明は、電極による加圧力が被加工物に
均一にかかるようにすることをその技術的課題としてい
る。Therefore, the technical problem of the present invention is to uniformly apply the pressure applied by the electrode to the workpiece.

（問題点を解決するための手段） そのため本発明は、圧力を加えると変形する材料により
中空状に形成した加圧゛電極の中空部に流体を圧入して
被加工物に加圧することを特徴とする。(Means for Solving the Problems) Therefore, the present invention is characterized in that fluid is pressurized into the hollow part of the pressurization electrode, which is formed in a hollow shape by a material that deforms when pressure is applied, to pressurize the workpiece. shall be.

（発明の作用） かかる構成を有する本発明によれば、加圧電極の各部に
亘って均一・な圧力が加わるため、その変形を通じて被
加工物に対しても均一な圧力が加えられることとなり、
曲面形状を有した被加工物であっても模様ムラや接着不
良を起すことのない良好な加工を施すことができること
となる。(Operation of the Invention) According to the present invention having such a configuration, uniform pressure is applied to each part of the pressurizing electrode, so that uniform pressure is also applied to the workpiece through its deformation.
Even if the workpiece has a curved surface shape, it is possible to perform good processing without causing pattern unevenness or poor adhesion.

（実施例） 以下本発明の実施例を図面を参照しつつ説明すると、ま
ずＷは被加工物であり、塩化ビニルシート等の表皮材ｗ
１と発泡体ｗ２とプラスチックｗ３とからなる３層構造
をもって曲面形状を有す；　　　　　る。(Example) Examples of the present invention will be described below with reference to the drawings. First, W is a workpiece, and a skin material W such as a vinyl chloride sheet.
It has a three-layer structure consisting of 1, foam w2, and plastic w3, and has a curved shape.

１は上電極、２は下電極であり、これら両電極１．２は
夫々装置の土足ｍ３、下定盤４に固着され上下方向に対
向しており、ウエルダ型として使用可能なシリコン等の
ダー性材により形成される。上電極１は加圧電極として
機能するもので、中空状に形成されており、５はその中
空部である。この中空部５には注油管６が接続されてい
る。そして両電極１，２間には高周波電源７が接続され
ている。1 is an upper electrode, and 2 is a lower electrode, and these electrodes 1.2 are fixed to the foot m3 of the device and the lower surface plate 4, respectively, and are opposed to each other in the vertical direction. Formed by material. The upper electrode 1 functions as a pressurizing electrode and is formed in a hollow shape, and 5 is the hollow portion thereof. An oil supply pipe 6 is connected to this hollow part 5. A high frequency power source 7 is connected between both electrodes 1 and 2.

このように構成された装置において、まず下電極ｚ上に
、表皮材Ｗ１を上に被加工物Ｗをセットし、次いで上電
極１を下降され、これら一対の電極１．２間に被加工物
Ｗを挟む。そして、この状態で図示しない油送ポンプに
よって注油バイブロを介して上電極１の中空部５内にオ
イルを圧入する。すると、このオイルの圧力が上電極１
に対して作用し、これによって被加工物Ｗが各部におい
て均一に加圧される。このオイルの圧入後、高周波電源
７によって両電極ｌ。In the apparatus configured as described above, first, the workpiece W is set on the lower electrode z with the skin material W1 on top, and then the upper electrode 1 is lowered, and the workpiece is placed between the pair of electrodes 1 and 2. Sandwich the W. In this state, oil is pressurized into the hollow portion 5 of the upper electrode 1 via an oil supply vibro using an oil feed pump (not shown). Then, the pressure of this oil increases to the upper electrode 1.
As a result, the workpiece W is pressurized uniformly at each part. After this oil is press-fitted, both electrodes l are connected by a high frequency power source 7.

２間に約４０〜７０ＭＨｚの高周波電圧を印加する。A high frequency voltage of about 40 to 70 MHz is applied between the two.

すると、被加工物Ｗに対し高周波電界が作用し、表皮材
ｗｌ中に誘電体損失を生じ、この表皮材ｗ１は内部発熱
により軟化する。したがって上電極ｌに模様を施してお
けば、表皮材ｗ１表面に、この模様が転写されることに
なり、また、別の表皮を上電極ｌと被加工物Ｗとの間に
入れておけば、これが溶着されることになる。Then, a high-frequency electric field acts on the workpiece W, causing dielectric loss in the skin material w1, and the skin material w1 softens due to internal heat generation. Therefore, if a pattern is applied to the upper electrode l, this pattern will be transferred to the surface of the skin material w1, and if another skin is placed between the upper electrode l and the workpiece W, then this pattern will be transferred to the surface of the skin material w1. , which will be welded.

すなわち、ここでは圧力媒体がオイルであるため、上電
極１の中空部５内における各受圧面に対し、その圧力が
垂直方向に作用することになるので、全域に亘って均一
な圧力が得られることとなる。That is, since the pressure medium here is oil, the pressure acts vertically on each pressure receiving surface in the hollow part 5 of the upper electrode 1, so that uniform pressure can be obtained over the entire area. It happens.

（発明の効果） 以上述べて来たように本発明によれば、加圧電極に、そ
の中空部から流体により圧力を加えて被加工物に加圧す
るようにしたため、被加工物の各部に均一な圧力が加わ
ることとなり、曲面形状を有した被加工物であっても模
様ムラや接着不良を起すことのない良好な加工を施すこ
とができるという効果を奏する。これにより、高周波ウ
エルダ加１工法の適用範囲が大巾に拡大されることにな
る。(Effects of the Invention) As described above, according to the present invention, pressure is applied to the workpiece by applying pressure to the pressure electrode using fluid from the hollow part thereof, so that pressure is applied uniformly to each part of the workpiece. As a result, even if the workpiece has a curved surface shape, it is possible to perform good processing without causing pattern unevenness or poor adhesion. This greatly expands the scope of application of the high-frequency welding method.

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

図は本発明方法の実施に使用する装置の一例を示す要部
断面図である。The figure is a sectional view of a main part showing an example of an apparatus used to carry out the method of the present invention.

Claims (1)

【特許請求の範囲】[Claims] （１）圧力を加えると変形する材料により中空状に形成
した加圧電極の中空部に流体を圧入して被加工物に加圧
することを特徴とする高周波ウェルダ加工法。(1) A high-frequency welding method characterized by pressurizing a workpiece by pressurizing a fluid into the hollow part of a pressure electrode formed in a hollow shape using a material that deforms when pressure is applied.
JP59220121A 1984-10-19 1984-10-19 Method of high-frequency weldering Pending JPS6198528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59220121A JPS6198528A (en) 1984-10-19 1984-10-19 Method of high-frequency weldering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59220121A JPS6198528A (en) 1984-10-19 1984-10-19 Method of high-frequency weldering

Publications (1)

Publication Number Publication Date
JPS6198528A true JPS6198528A (en) 1986-05-16

Family

ID=16746243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59220121A Pending JPS6198528A (en) 1984-10-19 1984-10-19 Method of high-frequency weldering

Country Status (1)

Country Link
JP (1) JPS6198528A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282563A1 (en) * 1986-09-09 1988-09-21 BAXTER INTERNATIONAL INC. (a Delaware corporation) Apparatus for heat sealing sheets of thermoplastic material between two electrodes
US5558015A (en) * 1993-12-28 1996-09-24 Hitachi Techno Engineering Co., Ltd. Hot press with pressure vessels to uniformly distribute pressure to the work piece
EP0755774A3 (en) * 1995-07-28 1997-02-05 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282563A1 (en) * 1986-09-09 1988-09-21 BAXTER INTERNATIONAL INC. (a Delaware corporation) Apparatus for heat sealing sheets of thermoplastic material between two electrodes
US5558015A (en) * 1993-12-28 1996-09-24 Hitachi Techno Engineering Co., Ltd. Hot press with pressure vessels to uniformly distribute pressure to the work piece
EP0755774A3 (en) * 1995-07-28 1997-02-05 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material

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