JPS61108027A - Shaping of terminal of molding - Google Patents

Shaping of terminal of molding

Info

Publication number
JPS61108027A
JPS61108027A JP59228291A JP22829184A JPS61108027A JP S61108027 A JPS61108027 A JP S61108027A JP 59228291 A JP59228291 A JP 59228291A JP 22829184 A JP22829184 A JP 22829184A JP S61108027 A JPS61108027 A JP S61108027A
Authority
JP
Japan
Prior art keywords
molding
mold electrode
terminal
electrode
terminal side
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
JP59228291A
Other languages
Japanese (ja)
Inventor
Takao Iwata
岩田　孝雄
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.)
Hashimoto Forming Industry Co Ltd
Original Assignee
Hashimoto Forming Industry 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 Hashimoto Forming Industry Co Ltd filed Critical Hashimoto Forming Industry Co Ltd
Priority to JP59228291A priority Critical patent/JPS61108027A/en
Publication of JPS61108027A publication Critical patent/JPS61108027A/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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/302—Trim strips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

PURPOSE:To prevent the formation of burrs by shaping the terminal of a molding member through softening by the upper-mold electrode and the lower-mold electrode having the nearly same shape to the outer shape of the terminal of the shaped molding. CONSTITUTION:The terminal side of a molding member 20 prepared through extrusion molding is supplied into an apparatus 23. Said apparatus 23 consists of the lower-mold electrode 25 having an insulating layer 24 and the upper-mold electrode 26, and said upper-mold electrode 26 has a concaved part 29 having the nearly same shape to the outer shape on the terminal side of the molding 20 which has a certain roundness on the terminal side 27. The molding member 20 is loaded onto the lower-mold electrode 25, and the upper-mold electrode 26 is shifted towards the lower-mold electrode 25 by fitting an acute part 32 with the terminal side, and high frequency is applied during pressing, then the terminal of the molding member 20 is fused, and the unnecessary part is cut-off by the acute part 32. The terminal side is adapted to the inner wall 33 of the electrode 23, and provided with roundness.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はモールディングの端末の成形方法、特に高周波
加熱により端末を成形する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for forming a terminal end of a molding, and particularly to a method for forming a terminal end using high-frequency heating.

〔従来の技術〕[Conventional technology]

従来、モールディングは第７図　第８図に示すように熔
融合成樹脂を押出し成形して成る長尺なモールディング
素材１の端部を第８図に示す下型７を介して上記空間５
に樹脂を注入することによりエンドキャップ８を一体化
している。このエンドキャップ８により端末に丸みを与
えて安全性を確保している。なお、９は装飾部材である
。Conventionally, molding has been carried out by inserting the end portion of a long molding material 1 made by extrusion molding a molten synthetic resin into the space 5 through a lower die 7 shown in FIG. 8, as shown in FIGS.
The end cap 8 is integrated by injecting resin into the end cap. This end cap 8 gives the terminal a rounded shape to ensure safety. Note that 9 is a decorative member.

しかしながら、このようなモールディングの製パリ１０
を除去するのに多大な手間を要するという欠点を有して
いた。However, the manufacture of such moldings in Paris 10
It has the disadvantage that it requires a lot of effort to remove.

〔問題点を解決するための手段〕[Means for solving problems]

従って、本発明は被成形モールディグの端末の外形とほ
ぼ同一形状の凹部を有する上型電極と下型電極との間双
押出し成形されたモールディング素材の端末をプレスし
ながら両電極間に高周波を加えて端末を軟化して成形す
るようにし、パリの発生を防止するものである。Therefore, in the present invention, high frequency waves are applied between the upper and lower electrodes, which have a concave portion having approximately the same shape as the outer shape of the end of the molding die, while pressing the end of the molding material that has been double extruded. In addition, the terminal is softened and molded to prevent the occurrence of flakes.

〔作用〕[Effect]

下型電極の凹部にもとづきモールディング素材の端末が
成形されるのでパリが発生しない。Since the end of the molding material is formed based on the concave portion of the lower mold electrode, no flaking occurs.

〔実施例〕〔Example〕

第１図〜第６図は本発明によるモールディングの端衆戒
形方法の一実施例を示す簡略構成図であり、本発明にお
いては、まず、第２図に示すようなモールディング２０
を押出し成形によって製造材２１が一体化′され、外面
には所定パターンの造形２２が付与される。次に、この
ようなモールア下型電極２５と上型電極２６とからなり
、上型電極２６は第６図に示すように端末２７側におい
て一定の丸みが与えられたモールディング２８の端末２
７の外形とほぼ同一形状の凹部２９を有しており、端末
２７とは反対側の上型電極２６は開口３０している。凹
部２９における端末側、即ち、側壁部３１例の先端は尖
鋭部３２となっている。FIGS. 1 to 6 are simplified configuration diagrams showing an embodiment of the method for forming moldings according to the present invention.
The manufacturing material 21 is integrated by extrusion molding, and a predetermined pattern of shapes 22 is provided on the outer surface. Next, the upper mold electrode 26 is composed of the lower mold electrode 25 and the upper mold electrode 26, and the upper mold electrode 26 is connected to the terminal 2 of the molding 28, which has a certain roundness on the terminal 27 side, as shown in FIG.
7, and the upper electrode 26 on the opposite side from the terminal 27 has an opening 30. The terminal side of the recessed portion 29, that is, the tip of the side wall portion 31 is a sharp portion 32.

下型蝕２５の上に上記モールディング素材２０を載置し
、尖鋭部３２を端末側に合わせて上型電極２６を下型電
極２５方向に移動し、押圧しながら高周波を加えると尖
鋭部３２でモールディング素材２０の端末が所定形状に
沿って圧縮され、この過程で溶融され、第４図に示すよ
うに尖鋭部３２によって不要部分３３が切離される。そ
して端末側は圧縮される過程で上型電極２３の内壁３３
の形状になじみ、これにより端末には丸みが与えられる
。Place the molding material 20 on the lower mold erosion 25, move the upper mold electrode 26 toward the lower mold electrode 25 with the sharp portion 32 facing the terminal side, and apply high frequency while pressing. The end of the molding material 20 is compressed into a predetermined shape, melted during this process, and an unnecessary portion 33 is cut off by a sharp portion 32, as shown in FIG. In the process of being compressed, the inner wall 33 of the upper electrode 23 on the terminal side
This gives the terminal a rounded shape.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によるモールディングの端末
の成形方法によれば、縁成形モールディングの端末の外
形とほぼ同一形状の凹部を有する上型電極と下型電極と
でモールディング素材の端末をプレスしながら両電極間
に高周波を加えて端末を軟化させながら成形するように
したので上記凹部の内壁に沿うような丸みを有する端末
を得ることができ、従来のようなパリが発生するおそれ
がなく、二次加工を不要とすることができる。As explained above, according to the method for forming the end of a molding according to the present invention, while pressing the end of the molding material with the upper mold electrode and the lower mold electrode, which have a concave portion having approximately the same shape as the outer shape of the end of the edge forming molding, Since high frequency is applied between both electrodes to soften the terminal while molding, it is possible to obtain a terminal with a roundness that follows the inner wall of the recess, and there is no risk of the occurrence of cracks as in the conventional method. Subsequent processing can be made unnecessary.

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

第１図〜第６図は本発明によるモールディングの端末の
成形方法の一実施例を示す簡略構成図、第７図、第８図
は従来のモールディングの端末の成形方法の一例を示す
斜視図及び断面図である。 ２０・・・モールディング素材、２５・・・下型電極、
２６・・・上型電極、３２・・・尖鋭部。 代理人　弁理士　　　宮　　園　　純　　−ロ工の浄り
ζ大宮に変更なし） 第４図 第５図 手続補正書（自効 昭和５９年１２月を日 特許庁長官　　志　賀　　　学　殿 ２、発明の名称 モールディングの端末の成形方法 ３、補正をする者 事件との関係　特許出願人 住所　１Ｍ胡駆Ｄりｍ耕３２０般 名　称　　橋本フォーミング工業株式会社代表者　　　
大　　木　　清　　吾 宮園国際特許事務所1 to 6 are simplified configuration diagrams showing one embodiment of the method for forming the end of a molding according to the present invention, and FIGS. 7 and 8 are perspective views showing an example of a method for forming the end of a conventional molding. FIG. 20... Molding material, 25... Lower mold electrode,
26... Upper mold electrode, 32... Sharp portion. Agent: Jun Miyazono, Patent Attorney - No change to the purity of professionalism ζ Omiya) Figure 4 Figure 5 Procedural Amendment (Effective December 1988) Manabu Shiga, Commissioner of the Japan Patent Office 2, Name of the invention Molding terminal molding method 3, relationship with the case of the person making the amendment Patent applicant address 1M Hu Yu D Rim Ko 320 Generic name Name Hashimoto Forming Industry Co., Ltd. Representative
Kiyoshi Oki Gomiyazono International Patent Office

Claims (2)

【特許請求の範囲】[Claims] （１）下型電極と、この下型電極の対向面側に、被成形
モールディングの端末の外形とほぼ同一形状の凹部を有
する上型電極とを備え、上記下型電極と上型電極との間
で押出し成形されたモールディング素材の端末をプレス
しながら両電極間に高周波を加えて端末を軟化して成形
したことを特徴とするモールディングの端末の形成方法(1) A lower mold electrode and an upper mold electrode having a concave portion having approximately the same shape as the outer shape of the end of the molding to be molded on the opposite surface side of the lower mold electrode, and the lower mold electrode and the upper mold electrode are connected to each other. A method for forming a molding end, characterized in that the end of a molding material extruded between electrodes is pressed and high frequency is applied between both electrodes to soften and mold the end. （２）モールディング素材に装飾部材が一体化されて成
ることを特徴とする特許請求の範囲第１項記載のモール
ディングの端末の成形方法。(2) A method for forming an end of a molding according to claim 1, wherein a decorative member is integrated with the molding material.
JP59228291A 1984-10-30 1984-10-30 Shaping of terminal of molding Pending JPS61108027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59228291A JPS61108027A (en) 1984-10-30 1984-10-30 Shaping of terminal of molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59228291A JPS61108027A (en) 1984-10-30 1984-10-30 Shaping of terminal of molding

Publications (1)

Publication Number Publication Date
JPS61108027A true JPS61108027A (en) 1986-05-26

Family

ID=16874163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59228291A Pending JPS61108027A (en) 1984-10-30 1984-10-30 Shaping of terminal of molding

Country Status (1)

Country Link
JP (1) JPS61108027A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325151A (en) * 1986-07-18 1988-02-02 Kinugawa Rubber Ind Co Ltd Decoration sash for car
JPS6393618A (en) * 1986-10-06 1988-04-23 Hashimoto Forming Co Ltd Manufacture of window molding
EP0323213A2 (en) * 1987-12-28 1989-07-05 Hashimoto Forming Industry Co Ltd Method of manufacturing molding members
FR2733714A1 (en) * 1995-05-03 1996-11-08 Esercizio Ind Materie Plastich Extruded plastic profile continuous prodn. for moulded shaped ends

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325151A (en) * 1986-07-18 1988-02-02 Kinugawa Rubber Ind Co Ltd Decoration sash for car
JPS6393618A (en) * 1986-10-06 1988-04-23 Hashimoto Forming Co Ltd Manufacture of window molding
EP0323213A2 (en) * 1987-12-28 1989-07-05 Hashimoto Forming Industry Co Ltd Method of manufacturing molding members
US4940557A (en) * 1987-12-28 1990-07-10 Hashmoto Forming Industry Co., Ltd. Method of manufacturing molding members
EP0323213B1 (en) * 1987-12-28 1994-03-16 Hashimoto Forming Industry Co Ltd Method of manufacturing molding members
FR2733714A1 (en) * 1995-05-03 1996-11-08 Esercizio Ind Materie Plastich Extruded plastic profile continuous prodn. for moulded shaped ends

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