JPS5591619A - Structure of slide core for thermoplastic resin mold - Google Patents
Structure of slide core for thermoplastic resin moldInfo
- Publication number
- JPS5591619A JPS5591619A JP16595778A JP16595778A JPS5591619A JP S5591619 A JPS5591619 A JP S5591619A JP 16595778 A JP16595778 A JP 16595778A JP 16595778 A JP16595778 A JP 16595778A JP S5591619 A JPS5591619 A JP S5591619A
- Authority
- JP
- Japan
- Prior art keywords
- cores
- concave
- slide
- fin
- core
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To reduce the production of fin to the minimum by placing a backplate on a slide core and to enable the fin to be removed by dint of a concave portion in the slide core and a groove in a bottom surface as the slide cores function, even if the fin is produced.
CONSTITUTION: A concave cut portion 3 is formed by cutting in a concave shape a portion whereat two slide cores 1 and 2 abut on to each other, a backplate 5 being fitted in a concave portion 4 which is formed with the concave portions 3, 3, machined in the cores 1 and 2, coincided together when the cores 1 and 2 are abutted on to each other. The depth of a point on a concave-staged portion 6 formed in a side surface of the cores 1 and 2 increases gradually the further outward in the opening direction C of the core this point is situated, and the depth of a point on a groove in a bottom surface of the cores 1 and 2 increases gradually the further outward in the opening direction C of the core this point is situated. In the slide cores formed in the manner described above, the production of a fin can be minimized by the backplate 5, and besides, the fin can be removed by dint of the concave-staged portion in the side surface of the slide core and the groove in the bottom surface thereof as the slide cores function.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16595778A JPS5591619A (en) | 1978-12-29 | 1978-12-29 | Structure of slide core for thermoplastic resin mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16595778A JPS5591619A (en) | 1978-12-29 | 1978-12-29 | Structure of slide core for thermoplastic resin mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5591619A true JPS5591619A (en) | 1980-07-11 |
Family
ID=15822223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16595778A Pending JPS5591619A (en) | 1978-12-29 | 1978-12-29 | Structure of slide core for thermoplastic resin mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5591619A (en) |
-
1978
- 1978-12-29 JP JP16595778A patent/JPS5591619A/en active Pending
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