JPS6031932A - Molding method of terminal of molding - Google Patents
Molding method of terminal of moldingInfo
- Publication number
- JPS6031932A JPS6031932A JP13897383A JP13897383A JPS6031932A JP S6031932 A JPS6031932 A JP S6031932A JP 13897383 A JP13897383 A JP 13897383A JP 13897383 A JP13897383 A JP 13897383A JP S6031932 A JPS6031932 A JP S6031932A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- resin
- end cap
- core member
- mold
- 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
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 11
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 14
- 239000011347 resin Substances 0.000 abstract description 14
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は、自動車等の単体パネル或いは建具。[Detailed description of the invention] This invention is applicable to single panels or fittings for automobiles, etc.
家具等に装着する合成樹脂製押出モールディソゲの端末
の成形方法に関するものである。The present invention relates to a method of molding the end of a synthetic resin extrusion mold disoge to be attached to furniture or the like.
従来、モールディング本体１を長尺に押出成形後に所定
の長さに切断し、第１図、第２図に示すようにインジェ
クション成形型Ｍ内に載置固定した後、キャビティ型Ｍ
ｌ、コア型Ｍ２とで構成されるエンドキャンプ成形空間
ＭＳ内に溶融樹脂を側部ＭＬからスプールＭ４、ゲー）
Ｍ３を介して射出して充填し、エンドキャップ部Ｅを一
体に形成するモールディングの端末成形法が広く用いら
れている。Conventionally, a molding body 1 is extruded into a long length, cut into a predetermined length, placed and fixed in an injection mold M as shown in FIGS. 1 and 2, and then molded into a cavity mold M.
The molten resin is transferred from the side ML to the spool M4 and the spool M4 into the end camp molding space MS consisting of the core mold M2 and the core mold M2.
A molding terminal forming method in which the end cap portion E is integrally formed by injection and filling through M3 is widely used.
しかしながらこのような端末の成形方法によると、モー
ルディング端末のエンドキャップＥに対してゲート部分
の一部がバリＦとして発生し、このバリＦをエンドキャ
ップＥの成形後切り取らなければならないという不具合
があった。However, according to such a terminal molding method, there is a problem in that a part of the gate portion of the end cap E of the molded terminal is generated as a burr F, and this burr F has to be cut off after the end cap E is molded. Ta.
この発明は、溶融樹脂を射出するに際してエンドキャン
プの底面側から樹脂注入口としてのゲート部が突入する
ようにして樹脂を注入することにより、上記不具合を解
消することを目的とする。An object of the present invention is to solve the above-mentioned problems by injecting the resin in such a way that a gate portion serving as a resin injection port protrudes from the bottom side of the end camp when injecting the molten resin.
第３図ないし第７図は本発明によるモールディングの端
末成形方法の一実施例を示す。第３図は本発明によるモ
ールディグの端末成形方法により作られたモールディン
グの端末斜視図で、モールディング本体１はポリ塩化ビ
ニル樹脂（以下ＰｖＣという）を長尺に押出成形したも
ので、二段の外表面部１ａ、ｌｂ及び両側部１ｃ、ｌｄ
を有し、断面はぼＣ字状となり、外表面形状とほぼ相似
した形状の内面の頂部１ｅ、側部１ｆ、Ｉｇとを有する
ように一体に成形される。内部には金属ストリップ材か
ら一定断面形状に折曲成形された金属プロファイル材１
ｈが一体的に埋設されている。3 to 7 show an embodiment of the method for forming the end of a molding according to the present invention. FIG. 3 is a terminal perspective view of a molding made by the molding terminal forming method according to the present invention. The molding body 1 is made by extrusion molding polyvinyl chloride resin (hereinafter referred to as PvC) into a long length. Outer surface portions 1a, lb and both side portions 1c, ld
It has a substantially C-shaped cross section, and is integrally molded to have an inner top portion 1e, side portions 1f, and Ig having a shape substantially similar to the outer surface shape. Inside is a metal profile material 1 that is bent and formed into a constant cross-sectional shape from a metal strip material.
h is integrally buried.
Ｅはエンドキャップ部で、先端に向かって先細に形成さ
れ、かつモールディング本体ｌの切断端部１ｊで一体化
されている。Reference numeral E designates an end cap portion that is tapered toward the tip and is integrated at the cut end 1j of the molding body 1.
第４図はモールディング端末部の裏面側斜視図コア部材
２の斜視図で比較的剛性を有する発泡ＡＢＳ樹脂等から
成形され、本体部分２ａと、モールディング本体１の内
部空間に嵌合するように突出される卑出部２ｂを有する
。コア部材２はエンドキャンプＥとほぼ相似形でかつ全
体に小さく製作され、本体部分２ａは底面部２ｃと両側
部る。また急面部２ｃには所定の間隔で突部２ｈ。FIG. 4 is a perspective view of the back side of the molding terminal part. The core member 2 is molded from relatively rigid foamed ABS resin, etc., and protrudes to fit into the internal space of the main body part 2a and the molding main body 1. It has an exposed portion 2b. The core member 2 has a substantially similar shape to the end camp E and is made smaller overall, and the main body portion 2a is located on both sides of the bottom portion 2c. Further, the steep surface portion 2c is provided with protrusions 2h at predetermined intervals.
２ｈが形成されている。2h is formed.
このように形成したコア部材２を第７図に示すようにイ
ンジェクション成形型Ｍに載置、固定し、溶融樹脂を射
出してエンドキャンプ部Ｅを形成する。この場合、成形
型Ｍはキャビティ型Ｍ１とコア型Ｍ２とからなり、コア
型Ｍ２から突出するピンＭ２１． Ｍ２２でコア部材２
はコア型に固定される。The core member 2 thus formed is placed and fixed in an injection mold M as shown in FIG. 7, and the end camp portion E is formed by injecting molten resin. In this case, the mold M consists of a cavity mold M1 and a core mold M2, and pins M21. Core member 2 with M22
is fixed to the core mold.
また、コア型には射出ノズルＮが、その先端がコア部材
の切り欠き２ｆを越えてキャビティ型に向けて突出する
ように設けられて、コア型に設けたホットランナ−Ｍ２
３と連結されている。このようなキャビティ型とコア型
とを型開きした状態で、コア部材をセットし、モールデ
ィング本体の切断端末をコア部材２の突出部２ｂがモー
ルディングて、一部がＹ方向へ、その大部分がＸ方向に
流れ、コア部材２の頂部に沿って充填されて反対側に達
する。樹脂がこのように充填される途中でコア部材２に
はコア部材を持ち上げようとする圧力Ｑよりも、押し下
げようとする圧力Ｐのほうが大なので、コア部材はコア
型にしっかりと押し付けられルディング本体の切断端末
とエンドキャップとが一体化されたものが完成する。Further, the core mold is provided with an injection nozzle N such that its tip extends beyond the notch 2f of the core member and protrudes toward the cavity mold.
It is connected to 3. With the cavity mold and core mold opened, the core member is set, and the protrusion 2b of the core member 2 molds the cut end of the molding main body, with a part going in the Y direction and a large part going in the Y direction. It flows in the X direction, filling along the top of the core member 2 and reaching the opposite side. While the resin is being filled in this way, the pressure P that tries to push down the core member 2 is greater than the pressure Q that tries to lift it up, so the core member is firmly pressed against the core mold and the molding body A product in which the cutting terminal and end cap are integrated is completed.
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
成形方法によれば次の効果がある。すなわち、ノズルＮ
から成るゲート部がエンドキャップＥの内部にあるので
、たとえバリＦとして発生してもエンドキャップＥの外
面に出ることがなく、従って切断等の工程が不要になる
。As explained above, the method for forming the end of a molding according to the present invention has the following effects. That is, nozzle N
Since the gate portion consisting of is located inside the end cap E, even if a burr F occurs, it will not come out on the outer surface of the end cap E, thus eliminating the need for processes such as cutting.
第１図、第２図は従来のモールディングの端末成形方法
の一例を示す図、第３図ないし第７図は本発明によるモ
ールディングの端末成形方法の一５一
実施例を示す斜視図及び断面図である。
１・・・モールディング本体、２・・・コア部材、Ｅ・
・・エンドキャップ、Ｎ・・・ノズル、２ｆ・・・切り
欠き、Ｍ２１． Ｍ２２・・・ピン。
特許出願人 橋本フォーミング工業株式会社代理人 弁
理士 宮 園 純 −
６−1 and 2 are views showing an example of a conventional molding end forming method, and FIGS. 3 to 7 are perspective views and sectional views showing one embodiment of the molding end forming method according to the present invention. It is. 1... Molding body, 2... Core member, E.
...End cap, N...Nozzle, 2f...Notch, M21. M22...pin. Patent applicant Hashimoto Forming Industry Co., Ltd. Agent Patent attorney Jun Miyazono − 6 −
Claims (1)
ィ型とコア型とから構成されるエンドキャップ成形空間
側に載置する工程、モールディングの端末とキャビティ
型、コア型とで構成さにエンドキャップ成形空間内に溶
融した合成樹脂を、モールディングの底面側から上記エ
ンドキャップ成形空間内に突出するノズルを介して充填
することによりエンドキャップ部を成形する工程とを含
むニ□ とを特徴とするモールディングの端末成形方法。[Claims] A step of placing an end of a molding main body having a predetermined cross-sectional shape in an end cap molding space composed of a cavity mold and a core mold; and a step of molding the end cap part by filling the end cap molding space with molten synthetic resin through a nozzle protruding into the end cap molding space from the bottom side of the molding. Terminal forming method for molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13897383A JPS6031932A (en) | 1983-07-29 | 1983-07-29 | Molding method of terminal of molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13897383A JPS6031932A (en) | 1983-07-29 | 1983-07-29 | Molding method of terminal of molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031932A true JPS6031932A (en) | 1985-02-18 |
| JPS6213888B2 JPS6213888B2 (en) | 1987-03-30 |
Family
ID=15234497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13897383A Granted JPS6031932A (en) | 1983-07-29 | 1983-07-29 | Molding method of terminal of molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031932A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6255586U (en) * | 1985-09-21 | 1987-04-06 | ||
| US4719067A (en) * | 1984-06-05 | 1988-01-12 | Gebr. Happich Gmbh | Method and apparatus for forming end pieces on plastic molding strips |
-
1983
- 1983-07-29 JP JP13897383A patent/JPS6031932A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719067A (en) * | 1984-06-05 | 1988-01-12 | Gebr. Happich Gmbh | Method and apparatus for forming end pieces on plastic molding strips |
| JPS6255586U (en) * | 1985-09-21 | 1987-04-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6213888B2 (en) | 1987-03-30 |
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