JPS5884726A - Forming method of synthetic resin product - Google Patents
Forming method of synthetic resin productInfo
- Publication number
- JPS5884726A JPS5884726A JP56182925A JP18292581A JPS5884726A JP S5884726 A JPS5884726 A JP S5884726A JP 56182925 A JP56182925 A JP 56182925A JP 18292581 A JP18292581 A JP 18292581A JP S5884726 A JPS5884726 A JP S5884726A
- Authority
- JP
- Japan
- Prior art keywords
- preform
- force
- concave
- mat
- resin
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はヘルメット等の合成樹脂製品の成形方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for molding synthetic resin products such as helmets.
従来、ヘルメットを製造するにあい、所定形状のプリフ
ォームを成形型に挿入し、樹脂を供給して加熱、加圧下
に成形し、ついでこの成形品の外面を研摩後下塗り塗装
し、再度研摩後下塗り塗装および表面塗装をしていた。Conventionally, when manufacturing helmets, a preform of a predetermined shape is inserted into a mold, resin is supplied, heated, and molded under pressure.The outer surface of this molded product is then polished and painted with a primer, and then polished again. Undercoating and surface painting were done.
このように表面塗装前に手間のかかる準備工程を必要と
するのは、下地のプリフォームの目が粗いために、塗装
の作業中に気泡が表面に浮上する等の理由で平滑な塗面
が得られないからである。従って、従来の方法では工程
が複雑で製作に非常に手間がかかつていた。The reason why such a time-consuming preparation process is required before surface painting is because the underlying preform is rough, and air bubbles rise to the surface during the painting process, resulting in a smooth painted surface. Because you can't get it. Therefore, in the conventional method, the process is complicated and it takes a lot of time and effort to manufacture.
この発明はこのような従来の欠点の解決のだめになされ
たものであり、表面塗装前の準備工程を省略して工程の
簡略化を図ったものである２、すなわち、この発明は成
形用型にあらかじめ表面塗装粗塗）嘆を形成させ、これ
に対してサーフェスマットを介してプリフォームを圧着
、成形することにより平滑な表面塗膜を形成させるよう
にしたものである。This invention was made to solve these conventional drawbacks, and aims to simplify the process by omitting the preparation step before surface painting.2 In other words, this invention A rough surface coating is formed in advance, and a preform is pressure-bonded and molded via a surface mat to form a smooth surface coating.
以下、この発明の実施例を図ｉｎによって説明する。第
１図において、■はガラス繊維を所定の形状に成形した
プリフォーム、２は細いガラス繊維の不織布からなるサ
ーフェスマットであり、このサーフェスマット２でプリ
フォーム１の外面を覆う。一方、第２図に示すように、
２分割片からなる成形用型３の内面には表面塗装用塗料
を噴射ノズル４０で吹きつけて塗膜４を形成させる。つ
ぎに第３図に示すように、この型３内にプリフォーム１
をその外面にサーフェスマット２を重ねだ状態で挿入し
、ついで液状樹脂を供給すると共に加圧手段５によって
内側から圧力を加える。、すなわち、パイプ５１から圧
縮空気を送り込んでコ゛ム製の加圧バッグ５０を膨ら寸
せ、プリフォーム１を型内面に圧着させる。これによっ
てプリフォームｌは型内面の形状に清うように成形され
ると共に樹脂がプリフォーム１およびサーフェスマット
２中に浸透する。この際上方に押し出される樹脂は型内
面３０の上端に形成された微少水平部３１で止められて
それより上向きに出るのか阻止されることにより周方向
に流され、こねによって樹脂が全面に行きわたるように
制御される。捷たプリフォーム１がサーフェスマント２
を介して塗膜４に圧着されることによって第５図に示す
ように一体化されるが、成形中にプリフォーム１が面方
向に移動するのをサーフェスマノｌ−２が吸収すること
によって塗膜４が割れるのを防止し、かつ塗膜４に対す
る接触面を平滑にして塗膜４とプリフォーム１とを強固
に結合させる。Embodiments of the present invention will be described below with reference to figures. In FIG. 1, ``■'' is a preform made of glass fiber molded into a predetermined shape, and 2 is a surface mat made of a thin non-woven glass fiber fabric, and the outer surface of the preform 1 is covered with this surface mat 2. On the other hand, as shown in Figure 2,
A paint film 4 is formed on the inner surface of the mold 3 made of two divided pieces by spraying a surface coating paint with a spray nozzle 40. Next, as shown in FIG. 3, a preform 1 is placed inside this mold 3.
The surface mat 2 is inserted into the outer surface of the mat 2 in an overlapping manner, and then liquid resin is supplied and pressure is applied from the inside by the pressurizing means 5. That is, compressed air is sent from the pipe 51 to inflate the pressurized bag 50 made of comb, and the preform 1 is pressed onto the inner surface of the mold. As a result, the preform 1 is molded to conform to the shape of the inner surface of the mold, and the resin permeates into the preform 1 and the surface mat 2. At this time, the resin pushed upward is stopped by a slight horizontal part 31 formed at the upper end of the inner surface 30 of the mold, and is prevented from coming out upwards from that point, so that it is flowed in the circumferential direction, and the resin is spread over the entire surface by kneading. controlled as follows. The shredded preform 1 is the surface cloak 2
The surface mano l-2 absorbs the movement of the preform 1 in the surface direction during molding, so that the coating film 4 is compressed and integrated as shown in FIG. The coating film 4 and the preform 1 are firmly bonded by preventing the coating film 4 from cracking and smoothing the contact surface with the coating film 4.
なお、サーフェスマットを使用しなければ加圧の際にプ
リフォームが塗１１φ４を傷つけてし捷うが、サーフェ
スマットを用いるととによってこ′Ｉ″ｌを防１１−１
できる。成形後、Ｊｌｉ！１．３を分ｊｌｉｌすること
によって表面に平滑な塗１１−４を有する成形品が１１
）られる。Note that if a surface mat is not used, the preform will damage the coating 11φ4 when pressurized, but if a surface mat is used, this can be prevented.
can. After molding, Jli! By dividing 1.3, a molded product with a smooth coating 11-4 on the surface becomes 11
) can be done.
従って、このｂｙ形後はノ・り取りお」：ひトリミング
を行なって部品取付は工程に移すことができ、成形品の
外面研摩Ｔ桿は必ｊＪ、１．１斤い１、以−ト説明した
ように、この発明に１、凹Ｑ１．１内に表面塗装用塗膜
を形成させ、こねに対しで外表Ｆｌをサーフェスマット
で附ったブリフォームラ挿入して圧着成形させるように
したものであり、表面塗装前の準備工程が省略できるた
めにヘルメツｉ・等の合成樹脂製品の成形を簡屯に行な
うことができるものである。Therefore, after this by shape, trimming can be carried out and parts installation can be moved to the process, and the outer surface of the molded product must be polished. As explained, in this invention, 1. A coating film for surface painting is formed in the concave Q1.1, and the outer surface Fl is inserted with a pre-formula attached with a surface mat and pressure-molded. Since the preparatory process before surface painting can be omitted, synthetic resin products such as Helmets I can be easily molded.
図面はこの発明を説明するだめのもので、第１図はプリ
フォームおよびサーフェスマットの断面図、第２図は型
に塗膜を吹きつける状態の断面図、第３図は成形過程を
示す断面図、第４図は矢印■部の拡大図、第５図は矢印
７部の拡大図である。
ｌ プリフォーム、２ サーフェスマット、３型、４
塗膜。
特許 出願人 ヤマノ・発動機株式会社代理人 弁理
士 小 谷 悦 司５．イ２１２．，１１、・
、′ 計“。
５−
第 １ 図
第 ２ 図The drawings are only for explaining this invention; Fig. 1 is a cross-sectional view of the preform and surface mat, Fig. 2 is a cross-sectional view of the state in which the coating is sprayed onto the mold, and Fig. 3 is a cross-sectional view showing the molding process. FIG. 4 is an enlarged view of the part indicated by the arrow ■, and FIG. 5 is an enlarged view of the part indicated by the arrow 7. l Preform, 2 Surface mat, type 3, 4
Paint film. Patent Applicant Yamano Motor Co., Ltd. Agent Patent Attorney Etsushi Kotani 5. I212. ,11,・
, 'total''. 5- Figure 1 Figure 2
Claims (1)
の完成品の形状に対応する形状のプリフォームの外面と
凹形内面間にサーフエスマットヲ介在するように上記凹
形内にサーフェスマットを挿入して樹脂を注入し、内部
から圧力を加えて凹型内にプリフォームを圧着させるこ
とにより外表面に塗膜を有する成形品を得ることを特徴
とする合成樹脂製品の成形方法。1. A coating film for surface coating is formed within the concave surface for molding, and the surface of the concave is interposed between the outer surface of the preform and the inner surface of the concave shape, which corresponds to the shape of the predetermined finished product. Molding of a synthetic resin product characterized by inserting a surface mat inside the mold, injecting resin, and applying pressure from the inside to press the preform into the concave mold to obtain a molded product with a coating film on the outer surface. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56182925A JPS5884726A (en) | 1981-11-13 | 1981-11-13 | Forming method of synthetic resin product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56182925A JPS5884726A (en) | 1981-11-13 | 1981-11-13 | Forming method of synthetic resin product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5884726A true JPS5884726A (en) | 1983-05-20 |
| JPH0130611B2 JPH0130611B2 (en) | 1989-06-21 |
Family
ID=16126769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56182925A Granted JPS5884726A (en) | 1981-11-13 | 1981-11-13 | Forming method of synthetic resin product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884726A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118760A (en) * | 1974-08-06 | 1976-02-14 | Sanyo Electric Co | Keshoseikeibutsu oyobi sonoseizohoho |
| JPS5284255A (en) * | 1976-01-07 | 1977-07-13 | Hitachi Chemical Co Ltd | Moulding of figured fiberrreinforced plastics product |
| JPS53140376A (en) * | 1977-05-13 | 1978-12-07 | Kubota Ltd | Production of patterned molded plastic articles |
| JPS56111638A (en) * | 1979-12-20 | 1981-09-03 | Nava Pier Luigi | Method and device for molding reinforced resin product |
-
1981
- 1981-11-13 JP JP56182925A patent/JPS5884726A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118760A (en) * | 1974-08-06 | 1976-02-14 | Sanyo Electric Co | Keshoseikeibutsu oyobi sonoseizohoho |
| JPS5284255A (en) * | 1976-01-07 | 1977-07-13 | Hitachi Chemical Co Ltd | Moulding of figured fiberrreinforced plastics product |
| JPS53140376A (en) * | 1977-05-13 | 1978-12-07 | Kubota Ltd | Production of patterned molded plastic articles |
| JPS56111638A (en) * | 1979-12-20 | 1981-09-03 | Nava Pier Luigi | Method and device for molding reinforced resin product |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0130611B2 (en) | 1989-06-21 |
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