JPH0256612U - - Google Patents
Info
- Publication number
- JPH0256612U JPH0256612U JP13516288U JP13516288U JPH0256612U JP H0256612 U JPH0256612 U JP H0256612U JP 13516288 U JP13516288 U JP 13516288U JP 13516288 U JP13516288 U JP 13516288U JP H0256612 U JPH0256612 U JP H0256612U
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- mold
- blow
- bent tube
- support pin
- 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
Links
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000000071 blow moulding Methods 0.000 claims 2
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案の実施例に係る合成樹脂製複合
管の製造装置の断面図である。第２図、第３図は
第１図の支持ピンの作用状態説明図である。第４
図、第５図は支持ピンの変形例の作用状態説明図
である。第６図は従来例を示す断面図である。第
７図は第６図における吸気管の外観図である。第
８図は先願に係る吸気管の断面図である。第９図
は第８図に示す吸気管に用いる中子の製造例を工
程を追つて示す説明図である。第１０図は第９図
に示す中子を金型内に収容し射出成形する状態を
示す説明図である。第１１図は第９図における金
型内の合成樹脂材料の流れを示す説明図である。
第１２図は吸気管を示す側面図である。第１３図
は従来方法によつて製造された吸気管の樹脂回り
不良を示す側面図である。
主要な部分の符号の説明、２０……中子、２１
，２２……射出成形金型、２３，２４……型面、
２５，２６……支持ピン、２７，２８……圧縮ス
プリング、３２……合成樹脂材、Ｃ……キヤビテ
イ、Ｃ１……隙間。
FIG. 1 is a sectional view of a synthetic resin composite pipe manufacturing apparatus according to an embodiment of the present invention. FIGS. 2 and 3 are explanatory views of the operating state of the support pin shown in FIG. 1. Fourth
FIG. 5 is an explanatory view of the operating state of a modified example of the support pin. FIG. 6 is a sectional view showing a conventional example. FIG. 7 is an external view of the intake pipe in FIG. 6. FIG. 8 is a sectional view of the intake pipe according to the prior application. FIG. 9 is an explanatory diagram showing step by step an example of manufacturing the core used in the intake pipe shown in FIG. 8. FIG. 10 is an explanatory diagram showing a state in which the core shown in FIG. 9 is housed in a mold and injection molded. FIG. 11 is an explanatory diagram showing the flow of the synthetic resin material in the mold in FIG. 9.
FIG. 12 is a side view showing the intake pipe. FIG. 13 is a side view showing defects in the resin surroundings of an intake pipe manufactured by the conventional method. Explanation of symbols of main parts, 20... Core, 21
, 22... injection mold, 23, 24... mold surface,
25, 26...Support pin, 27, 28...Compression spring, 32...Synthetic resin material, C...Cavity, C1 ...Gap.
Claims (1)
ロー成形製曲がり管内に射出成形時の圧力に抗し
得る非変形材を充填すると共に、その両端部を閉
塞して形成される中子を、割り型の射出成形金型
内に挿入し、ブロー成形製曲がり管と割り型の射
出成形金型の型面との間に合成樹脂材を射出し、
ブロー成形製曲がり管の表面に合成樹脂材を一体
的に被覆する合成樹脂製複合管の製造装置におい
て、各射出成形金型は、それ等の型面内に形成さ
れるキヤビテイ内に型面から所定量突出自在に設
けられた支持ピンと、この支持ピンを突出させる
付勢手段とを備えていることを特徴とする合成樹
脂製複合管の製造装置。 A bent tube is formed by blow molding, and a non-deformable material that can withstand the pressure during injection molding is filled into the blow molded bent tube, and both ends of the bent tube are closed and the resulting core is split. It is inserted into the injection mold of the mold, and a synthetic resin material is injected between the bent pipe made of blow molding and the mold surface of the split injection mold,
In a manufacturing device for synthetic resin composite pipes that integrally coats the surface of a blow-molded curved pipe with a synthetic resin material, each injection mold has a cavity formed within the mold surface. 1. An apparatus for manufacturing a synthetic resin composite pipe, comprising a support pin that can be freely projected by a predetermined amount, and a biasing means that causes the support pin to protrude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13516288U JPH0256612U (en) | 1988-10-17 | 1988-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13516288U JPH0256612U (en) | 1988-10-17 | 1988-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0256612U true JPH0256612U (en) | 1990-04-24 |
Family
ID=31394546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13516288U Pending JPH0256612U (en) | 1988-10-17 | 1988-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0256612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08207055A (en) * | 1995-02-03 | 1996-08-13 | Kawamoto Seisakusho:Kk | Method and apparatus for molding plastic product, and method and apparatus for molding plastic centrifugal impeller |
| JP2009179033A (en) * | 2008-02-01 | 2009-08-13 | Kao Corp | Molding die and method of manufacturing molding by using it |
-
1988
- 1988-10-17 JP JP13516288U patent/JPH0256612U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08207055A (en) * | 1995-02-03 | 1996-08-13 | Kawamoto Seisakusho:Kk | Method and apparatus for molding plastic product, and method and apparatus for molding plastic centrifugal impeller |
| JP2009179033A (en) * | 2008-02-01 | 2009-08-13 | Kao Corp | Molding die and method of manufacturing molding by using it |
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