JPH03114716A - Molding method for composite product - Google Patents
Molding method for composite productInfo
- Publication number
- JPH03114716A JPH03114716A JP6845590A JP6845590A JPH03114716A JP H03114716 A JPH03114716 A JP H03114716A JP 6845590 A JP6845590 A JP 6845590A JP 6845590 A JP6845590 A JP 6845590A JP H03114716 A JPH03114716 A JP H03114716A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- mold
- sealing material
- sealing surface
- elastic sealing
- 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 34
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims description 10
- 239000003566 sealing material Substances 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 230000001788 irregular Effects 0.000 claims abstract description 10
- 238000010137 moulding (plastic) Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 10
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002699 waste material 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
-
- 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
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
- B29C45/062—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction carrying mould halves co-operating with fixed mould halves
-
- 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
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明はプラスチック成型物本体と弾性シール材が一体
成型された複合物品の成型法に係り、特に前記プラスチ
ック本体と弾性シール材との密着性が向上されるととも
に成型工程が簡易である等の利点を保持する複合物品の
成型法に関する。[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a method for molding a composite article in which a plastic molded article body and an elastic sealing material are integrally molded, and particularly relates to a method for molding a composite article in which a plastic molded article body and an elastic sealing material are integrally molded, and in particular, the adhesiveness between the plastic body and the elastic sealing material is improved. The present invention relates to a method for molding a composite article that has advantages such as improved performance and a simple molding process.
本発明にかかる複合物品とはプラスチック成型物本体と
弾性シール材との複合体を云い、具体的には各種自動車
部品、例えば、オイルパン、ヘッドカバー、計器カバー
、テールランプ等、あるいは各種容器の蓋、栓等が挙げ
られる。The composite article according to the present invention refers to a composite body of a plastic molded body and an elastic sealing material, and specifically includes various automobile parts, such as oil pans, head covers, instrument covers, tail lamps, etc., or lids of various containers, Examples include stoppers.
この種の複合物品は従来、プラスチック成型物本体をあ
らかじめ成型しておき、次いでこれとは別途に弾性シー
ル材を成型し、この弾性シール材を所望の形状に、例え
ばリング状に打ち抜き加工の後、前記リング状弾性シー
ル材を前記プラスチック成型物本体のシール面上に接着
剤等を用いて貼り付ける方法、あるいは前記プラスチッ
ク成型物本体を成型の後、このシール面上に液状ガスケ
ットを塗布して薄層のシール層を形成する方法等により
形成されていたが、前者は弾性シール材を打ち抜き加工
するため中央抜き部分が材料損失となって不経済となる
ことはもちろんのこと、貼り付は作業がやっかいであり
、かつプラスチック成型物本体のシール面と弾性シール
材との密着性が不充分であり、特にシール面が平坦でな
い場合には密着性が著しく低下し、後者もまた、液状ガ
スケットの塗布作業がやっかいであるのみならず塗布面
の表面平滑性に欠け、漏洩が起こりやすい。Conventionally, for this type of composite article, the plastic molded body is molded in advance, and then an elastic sealing material is separately molded, and this elastic sealing material is punched into a desired shape, for example, a ring shape. , a method of pasting the ring-shaped elastic sealing material onto the sealing surface of the plastic molded body using an adhesive, or a method of applying a liquid gasket onto the sealing surface after molding the plastic molded body. However, in the former method, the elastic sealing material is punched out, which results in material loss in the central punched part, which is uneconomical, and the pasting process is labor intensive. This is troublesome, and the adhesion between the sealing surface of the plastic molded body and the elastic sealing material is insufficient. Especially when the sealing surface is not flat, the adhesion deteriorates significantly, and the latter also causes problems with the liquid gasket. Not only is the application process troublesome, but the coated surface lacks surface smoothness and leakage is likely to occur.
本発明の目的はたとえプラスチック成型物本体のシール
面が平坦でなくてもシール面と弾性シール材とが一体的
に、強固に密着されるとともに成型工程が簡易であり、
かつ弾性シール材の表面平滑性に富んでシール性が完全
であり、さらに材料の無駄が生じない複合物品の成型法
を提供することにある。The object of the present invention is to enable the sealing surface and the elastic sealing material to be integrally and firmly adhered to each other even if the sealing surface of the plastic molded body is not flat, and to simplify the molding process.
Another object of the present invention is to provide a method for molding a composite article in which the surface smoothness of the elastic sealing material is high and the sealing performance is perfect, and the material is not wasted.
前述の目的を達成するため、本発明によれば、互いに置
き換え可能な一対の金型を備えた成型機を用い、前記金
型のいずれか一方を用いて一部に不整面部を備えたシー
ル面を有するプラスチック成型物本体を成型し、次いで
このプラスチック成３
型物本体を前記金型の片側内に保持したままこの片側と
他方の金型の片側とを互いに置き換え、この置き換えら
れた位置で前記プラスチック成型物本体のシール面の不
整面部に弾性シール材を成型することを特徴とする。In order to achieve the above-mentioned object, according to the present invention, a molding machine equipped with a pair of mutually replaceable molds is used, and either one of the molds is used to form a sealing surface partially having an irregular surface portion. This plastic molding body is then held in one side of the mold, and this one side and the other side of the mold are replaced with each other, and in this replaced position, the molded body is molded. It is characterized in that an elastic sealing material is molded on the irregular surface portion of the sealing surface of the plastic molded body.
以下、本発明を添付図面を用いて具体的に説明する。 Hereinafter, the present invention will be specifically explained using the accompanying drawings.
第１図は本発明方法に用いられる成型機の一例を示し、
第２図は第１図の成型機を用いて成型されたオイルパン
の斜視図を示し、第３図（ａ）〜（ｃ）は第２図のＡ部
分の部分拡大断面図を示す。FIG. 1 shows an example of a molding machine used in the method of the present invention,
2 shows a perspective view of an oil pan molded using the molding machine shown in FIG. 1, and FIGS. 3(a) to 3(c) show partially enlarged sectional views of portion A in FIG. 2.
まず、第１図の成型機について説明すると、この成型機
は二基の射出装置、ｌａ、ｌｂ、ならびに一対の金型２
ａ、２ｂを備えてなり、前記金型２ａ、２ｂはいずれも
回転板３上の対向する位置に配置され、この回転板３を
回転することにより互いに置き換え可能となっている。First, to explain the molding machine shown in Fig. 1, this molding machine has two injection devices, la and lb, and a pair of molds 2.
The molds 2a and 2b are both arranged at opposing positions on a rotary plate 3, and can be replaced with each other by rotating the rotary plate 3.
まず、射出装置１ａから例えばオイルパンの金型２ａに
ポリアミド（６，６ナイロン）、ポリアセタール、ポリ
カーボネート、Ａ Ｂ ’Ｓ樹脂等のプラスチック材料
を１５０℃〜２００℃の温度で射出してオイルパン形状
のプラスチック成型物本体４を成型する。First, a plastic material such as polyamide (6,6 nylon), polyacetal, polycarbonate, AB'S resin, etc. is injected from an injection device 1a into a mold 2a for an oil pan at a temperature of 150°C to 200°C to form an oil pan shape. A plastic molded body 4 is molded.
５はプラスチック成型物本体のシール面である。5 is a sealing surface of the plastic molded body.
次に金型２ａの上片側２ａ″をはずして型開きを行なう
とともに、回転板３を速やかに１８０゜回転して下片側
２ａ’内にプラスチック成型物本体４を保持したままこ
の下片側２ａ’ と他方の金型２ｂの下片側２ｂ’ と
を互いに置き換え、すなわち、第１図において下片側２
ａ’の位置に下片側２ｂ’ を、また下片側２ｂ’の位
置に下片側２８′をそれぞれ配置し、この置き換えられ
た位置で下片側２ａ’ に弾性シール材の成形用のシー
ル成型溝を型面に有する上片側２ｂ″を合わせて再び型
締めし、射出装置１ｂからシール面５上にシリコン樹脂
、ポリウレタン樹脂等の合成樹脂シール材料を射出して
シール面５上に弾性シール材６を成型し、例えば第２図
に示すようなプラスチック成型物本体４と弾性シール材
６からなる複合物品を得る。このとき金型２ｂの下片側
２ｂ’は射出装置ｌａ側に移動しており、ここでこの下
片側２ｂ’ と上片側２ａ″を合わせて型締めし、前述
と同様の成型操作をくり返す。Next, the upper side 2a'' of the mold 2a is removed to open the mold, and the rotary plate 3 is quickly rotated 180 degrees to open the lower side 2a' while holding the plastic molded product main body 4 inside the lower side 2a'. and the lower side 2b' of the other mold 2b are replaced with each other, that is, the lower side 2b' in FIG.
Place the lower side 2b' at the position a' and the lower side 28' at the position of the lower side 2b', and form a seal molding groove for molding the elastic sealing material in the lower side 2a' at this replaced position. The upper side 2b'' held on the mold surface is brought together and the mold is clamped again, and a synthetic resin sealing material such as silicone resin or polyurethane resin is injected from the injection device 1b onto the sealing surface 5 to form an elastic sealing material 6 on the sealing surface 5. For example, a composite article consisting of a plastic molded body 4 and an elastic sealing material 6 as shown in FIG. The lower side 2b' and the upper side 2a'' are then clamped together and the same molding operation as described above is repeated.
このような本発明ではシール面５への弾性シール材６の
付着が成型操作によって速やかに行なわれるので、シー
ル面５が必ずしも平坦である必要はなく、いかなる形状
であっても一体的に、強固に密着され、かついかなる形
状の弾性シール材をも成型可能であり、もちろん弾性シ
ール材の表面平滑性を保持することも容易であり、かつ
材料の無駄も生じない。In the present invention, since the elastic sealing material 6 is quickly attached to the sealing surface 5 by a molding operation, the sealing surface 5 does not necessarily have to be flat, and can be integrally and firmly formed in any shape. It is possible to mold an elastic sealing material in any shape that is in close contact with the material, and of course, it is easy to maintain the surface smoothness of the elastic sealing material, and there is no waste of material.
さらに本発明では一台の成型機により、簡単な操作で速
やかに成型しうるので、成型工程が簡単である。Furthermore, in the present invention, molding can be performed quickly with simple operations using a single molding machine, so the molding process is simple.
第３図はプラスチック成型物本体４のシール面５と弾性
シール材６の各種形態を示す。第３図（ａ）は不整面部
として貫通孔を部分的に有するシール面上に弾性シール
材６を成型した例を示し、この場合、弾性シール材６は
シール面上に完全に保持され、使用時にこれがずれる心
配がない。FIG. 3 shows various forms of the sealing surface 5 of the plastic molded body 4 and the elastic sealing material 6. FIG. 3(a) shows an example in which the elastic sealing material 6 is molded on a sealing surface that partially has a through hole as an irregular surface. In this case, the elastic sealing material 6 is completely held on the sealing surface and is not used. There is no need to worry about it sometimes slipping.
第３図（ｂ）は不整面部として微細な凹凸を有するシー
ル面上に弾性シール材６を成型した例を示し、この場合
弾性シール材６のシール面への密着性は完全である。FIG. 3(b) shows an example in which the elastic sealing material 6 is molded on a sealing surface having fine irregularities as irregular surface portions, and in this case, the adhesiveness of the elastic sealing material 6 to the sealing surface is perfect.
第３図（ｃ）は弾性シール材６をシール面上の不整面部
としての溝の中に成型した例を示す。この場合、弾性シ
ール材６は溝内に完全に保持され、使用中にずれる心配
がなく、かつシール性も完全である。FIG. 3(c) shows an example in which the elastic sealing material 6 is molded into a groove as an irregular surface portion on the sealing surface. In this case, the elastic sealing material 6 is completely held within the groove, there is no fear that it will shift during use, and the sealing performance is perfect.
このような本発明ではシール面５への弾性シール材６の
付着が成型操作によって速やかに行われるとともに、シ
ール面５の不整面上に弾性シール材６が付着されるから
、広い面積でも一体的に、強固に密着され、かついかな
る形状の弾性シール材をも成型可能であり、もちろん弾
性シール材の表面平滑性を保持することも容易であり、
かつ材料の無駄も生じない。さらに本発明では一台の成
型機により簡単な操作で速やかに成型しろるので、成型
工程が簡単である。In the present invention, the elastic sealing material 6 is quickly attached to the sealing surface 5 by a molding operation, and the elastic sealing material 6 is also attached to the irregular surface of the sealing surface 5, so that it can be integrated even over a large area. In addition, it is possible to mold an elastic sealing material that is tightly adhered and has any shape, and of course it is easy to maintain the surface smoothness of the elastic sealing material.
Moreover, there is no wastage of materials. Furthermore, in the present invention, the molding process is simple because the molding can be quickly performed with a single molding machine with simple operations.
７−7-
第１図は本発明に用いられる成型機の一例を示し、第２
図は本発明方法によって成型されたオイルパンの斜視図
を示し、第３図（ａ）〜（ｃ）はシール面への弾性シー
ル材の各種成型例を示す。
１ａ、１ｂ・・・・・・射出装置
２ａ、２ｂ・・・・・・金型
２ａ’ 、２ｂ’・・・・・・下片側
２ａ”、２ｂ”・・・・・・上片側
３・・・・・・回転板Figure 1 shows an example of a molding machine used in the present invention;
The figure shows a perspective view of an oil pan molded by the method of the present invention, and FIGS. 3(a) to 3(c) show various examples of molding the elastic sealing material onto the sealing surface. 1a, 1b...Injection devices 2a, 2b...Molds 2a', 2b'...Lower side 2a'', 2b''...Upper side 3.・・・・・・Rotating plate
Claims (1)
、前記金型のいずれか一方を用いて一部に不整面部を備
えたシール面を有するプラスチック成型物本体を成型し
、次いでこのプラスチック成型物本体を前記金型の片側
内に保持したままこの片側と他方の金型の片側とを互い
に置き換え、この置き換えられた位置で前記プラスチッ
ク成型物本体のシール面の不整面部に弾性シール材を成
型することを特徴とするプラスチック成型物本体と弾性
シール材が一体成型された複合物品の成型法。Using a molding machine equipped with a pair of molds that can be replaced with each other, one of the molds is used to mold a plastic molded product body having a sealing surface with a partially uneven surface portion, and then this plastic molding is performed. While holding the object body within one side of the mold, this one side and one side of the other mold are replaced with each other, and an elastic sealing material is molded on the irregular surface of the sealing surface of the plastic molded object body at this replaced position. A method for molding a composite article in which a plastic molded article body and an elastic sealing material are integrally molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845590A JPH03114716A (en) | 1990-03-20 | 1990-03-20 | Molding method for composite product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845590A JPH03114716A (en) | 1990-03-20 | 1990-03-20 | Molding method for composite product |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16115283A Division JPS6052322A (en) | 1983-09-01 | 1983-09-01 | Molding of composite article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03114716A true JPH03114716A (en) | 1991-05-15 |
| JPH0438567B2 JPH0438567B2 (en) | 1992-06-24 |
Family
ID=13374189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6845590A Granted JPH03114716A (en) | 1990-03-20 | 1990-03-20 | Molding method for composite product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03114716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014046A1 (en) * | 2000-08-11 | 2002-02-21 | Seeber Gmbh | Component with a sealing function, especially a hollow section seal, and method for the production thereof |
-
1990
- 1990-03-20 JP JP6845590A patent/JPH03114716A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014046A1 (en) * | 2000-08-11 | 2002-02-21 | Seeber Gmbh | Component with a sealing function, especially a hollow section seal, and method for the production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0438567B2 (en) | 1992-06-24 |
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