JPS564431A - Structure and manufacturing device for molded product having spiral groove - Google Patents
Structure and manufacturing device for molded product having spiral grooveInfo
- Publication number
- JPS564431A JPS564431A JP7893979A JP7893979A JPS564431A JP S564431 A JPS564431 A JP S564431A JP 7893979 A JP7893979 A JP 7893979A JP 7893979 A JP7893979 A JP 7893979A JP S564431 A JPS564431 A JP S564431A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- movable
- molds
- molded product
- spiral groove
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To smooth a surface of a screw portion of a molded product and improve an accuracy thereof by a method wherein ribs to prevent a rotation upon mold releasing are provided on the molded product and the product is released from molds while spiral grooves provided on both fixed side and movable side of the mold are rotated.
CONSTITUTION: A screw-like spiral groove 2 is provided on a separating surface of a mold for a flange 1 and a screw 3 is provided on an internal periphery of a side opposing thereto while ribs 5 are arranged at desired positions on a circular recessed portion 4 for reducing an excess thickness thereof. In the molds, separate molds 15, 31 to form spiral grooves on a fixed-side core 11 and a movable-side core 28 respectively are movably attached to the principal molds. After resin is filled and cooled, a mold releasing of the spiral groove is effected by moving as the movable- side mold 15 is being rotated while the mold releasing of the fixed-side is effected by moving the core 11. When the movable-side mold 31 is rotated, protrusions 28a of the movable-side core 28 are engaged with the ribs 5 to stop the rotation and thus the mold releasing of the screw portion 3 may be finished.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7893979A JPS564431A (en) | 1979-06-22 | 1979-06-22 | Structure and manufacturing device for molded product having spiral groove |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7893979A JPS564431A (en) | 1979-06-22 | 1979-06-22 | Structure and manufacturing device for molded product having spiral groove |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS564431A true JPS564431A (en) | 1981-01-17 |
JPS6125529B2 JPS6125529B2 (en) | 1986-06-16 |
Family
ID=13675843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7893979A Granted JPS564431A (en) | 1979-06-22 | 1979-06-22 | Structure and manufacturing device for molded product having spiral groove |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS564431A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60217960A (en) * | 1984-04-06 | 1985-10-31 | 株式会社サンポリ | Protective cap for male screw of pipe |
JP2007293616A (en) * | 2006-04-25 | 2007-11-08 | Fuji Electric Retail Systems Co Ltd | Screw feeder of powder raw material conveying apparatus and its manufacturing method |
JP2009072965A (en) * | 2007-09-19 | 2009-04-09 | Yamashiro Seiki Seisakusho:Kk | Demolding device of molded screw |
CN112590129A (en) * | 2021-03-05 | 2021-04-02 | 莱克电气股份有限公司 | Injection mold and forming method of rotating body |
-
1979
- 1979-06-22 JP JP7893979A patent/JPS564431A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60217960A (en) * | 1984-04-06 | 1985-10-31 | 株式会社サンポリ | Protective cap for male screw of pipe |
JP2007293616A (en) * | 2006-04-25 | 2007-11-08 | Fuji Electric Retail Systems Co Ltd | Screw feeder of powder raw material conveying apparatus and its manufacturing method |
JP2009072965A (en) * | 2007-09-19 | 2009-04-09 | Yamashiro Seiki Seisakusho:Kk | Demolding device of molded screw |
CN112590129A (en) * | 2021-03-05 | 2021-04-02 | 莱克电气股份有限公司 | Injection mold and forming method of rotating body |
Also Published As
Publication number | Publication date |
---|---|
JPS6125529B2 (en) | 1986-06-16 |
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