JPS5591619A - Structure of slide core for thermoplastic resin mold - Google Patents

Structure of slide core for thermoplastic resin mold

Info

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
Application number
JP16595778A
Other languages
Japanese (ja)
Inventor
Yoshihiro Miyawaki
Tsuneo Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP16595778A priority Critical patent/JPS5591619A/en
Publication of JPS5591619A publication Critical patent/JPS5591619A/en
Pending legal-status Critical Current

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
JP16595778A 1978-12-29 1978-12-29 Structure of slide core for thermoplastic resin mold Pending JPS5591619A (en)

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)

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