JPS55270A - Plastic molding method - Google Patents

Plastic molding method

Info

Publication number
JPS55270A
JPS55270A JP1942279A JP1942279A JPS55270A JP S55270 A JPS55270 A JP S55270A JP 1942279 A JP1942279 A JP 1942279A JP 1942279 A JP1942279 A JP 1942279A JP S55270 A JPS55270 A JP S55270A
Authority
JP
Japan
Prior art keywords
strip
mandrel
slide
strips
movement
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
Application number
JP1942279A
Other languages
Japanese (ja)
Other versions
JPS5622692B2 (en
Inventor
Yasuhiro Otani
Shigeru Okusaka
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP1942279A priority Critical patent/JPS55270A/en
Publication of JPS55270A publication Critical patent/JPS55270A/en
Publication of JPS5622692B2 publication Critical patent/JPS5622692B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To enable an easy demolding of a core mold even if a molded object is undercut deeply, by using a ring-shaped core mold where pairs of two different slide strips are arranged alternately.
CONSTITUTION: A tubular plastic resin molded object 6 is molded in a space provided between an outer mold and a core mold consisting of mandrel strips 21, 22, slide strips 31, 32, projection prongs 41, 42 of No.1 hollows, and a No.2 hollow 2. Afterward the slide 31 is moved toward an axis center P of a mandrel 2 through the movement of the mandrel strips 21 in a direction of an arrow mark A. The slide strip 31 is detached from a rectangular groove part 61 and a curving part 62. The slide strip 31 is moved to the outside of the slide strip 31 through the further movement of the mandrel strip 21 in the direction of the arrow mark A. Simultaneously the slide strip 32 is moved toward the axis center of the mandrel 2 through the movement of the mandrel strip 22 in the A mark direction, and the slide strip 32 is removed from the rectangular groove part 61 and the curved part 62 of the molded object 6. Then the slide strip 32 is carried to the outside of the outer mold 1 through the further movement of the mandrel strip 22 in the A mark direction.
COPYRIGHT: (C)1980,JPO&Japio
JP1942279A 1979-02-20 1979-02-20 Plastic molding method Granted JPS55270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1942279A JPS55270A (en) 1979-02-20 1979-02-20 Plastic molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1942279A JPS55270A (en) 1979-02-20 1979-02-20 Plastic molding method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6150973A Division JPS5513891B2 (en) 1973-05-31 1973-05-31

Publications (2)

Publication Number Publication Date
JPS55270A true JPS55270A (en) 1980-01-05
JPS5622692B2 JPS5622692B2 (en) 1981-05-27

Family

ID=11998818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1942279A Granted JPS55270A (en) 1979-02-20 1979-02-20 Plastic molding method

Country Status (1)

Country Link
JP (1) JPS55270A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118833A (en) * 1980-02-26 1981-09-18 Toshiba Mach Co Ltd Mold for forming
CN103057054A (en) * 2013-01-21 2013-04-24 西诺控股集团有限公司 Inner tap of injection mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118833A (en) * 1980-02-26 1981-09-18 Toshiba Mach Co Ltd Mold for forming
CN103057054A (en) * 2013-01-21 2013-04-24 西诺控股集团有限公司 Inner tap of injection mold

Also Published As

Publication number Publication date
JPS5622692B2 (en) 1981-05-27

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