JPS5780010A - Metal mold for forming resin - Google Patents

Metal mold for forming resin

Info

Publication number
JPS5780010A
JPS5780010A JP15688180A JP15688180A JPS5780010A JP S5780010 A JPS5780010 A JP S5780010A JP 15688180 A JP15688180 A JP 15688180A JP 15688180 A JP15688180 A JP 15688180A JP S5780010 A JPS5780010 A JP S5780010A
Authority
JP
Japan
Prior art keywords
space
metal mold
groove
resin
mold
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
JP15688180A
Other languages
Japanese (ja)
Inventor
Katsue Kenmochi
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15688180A priority Critical patent/JPS5780010A/en
Publication of JPS5780010A publication Critical patent/JPS5780010A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To obtain a metal mold which achieves effectively economy of material and energy, even if at a low capacity and a low injection-pressure, by following method in which a part of wall shaping a mold cavity is composed of a material being able to be deformed elastically along a part where a sink mark is formed liably in a forming metal mold, thereby preventing shrinkage cavities in formed articles.
CONSTITUTION: For instance, a groove 11 is formed in a fixed side mold 10 at an intersection of a space 8 and 9 in a metal mold provided with a cavity space composed of a space 8 corresponding to a flat plate and a space 9 corresponding to a rib. Consequently, when the compression molding of a resin is carried out, the groove 11 is deformed larger than the other parts, and excessive resin is accumulated, thereby preventing the sink mark of the molded resin by means of gradually recovering the deformation of the groove 11 in cooling and solidification stage.
EFFECT: Decreasing the weight of molded resin and improvement of appearance are simultaneously achieved. Material economy and cost down are expected, and then the rank of an injection molding machine is able to be lowered. The space and cost of said device are saved.
COPYRIGHT: (C)1982,JPO&Japio
JP15688180A 1980-11-06 1980-11-06 Metal mold for forming resin Pending JPS5780010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15688180A JPS5780010A (en) 1980-11-06 1980-11-06 Metal mold for forming resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15688180A JPS5780010A (en) 1980-11-06 1980-11-06 Metal mold for forming resin

Publications (1)

Publication Number Publication Date
JPS5780010A true JPS5780010A (en) 1982-05-19

Family

ID=15637425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15688180A Pending JPS5780010A (en) 1980-11-06 1980-11-06 Metal mold for forming resin

Country Status (1)

Country Link
JP (1) JPS5780010A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0568622U (en) * 1992-02-25 1993-09-17 河西工業株式会社 Injection molded products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0568622U (en) * 1992-02-25 1993-09-17 河西工業株式会社 Injection molded products

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