JPS645808A - Molding tool device - Google Patents

Molding tool device

Info

Publication number
JPS645808A
JPS645808A JP16262387A JP16262387A JPS645808A JP S645808 A JPS645808 A JP S645808A JP 16262387 A JP16262387 A JP 16262387A JP 16262387 A JP16262387 A JP 16262387A JP S645808 A JPS645808 A JP S645808A
Authority
JP
Japan
Prior art keywords
block
retaining recess
cavity
discharging rod
resin
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
JP16262387A
Other languages
Japanese (ja)
Inventor
Toshikazu Shibata
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP16262387A priority Critical patent/JPS645808A/en
Publication of JPS645808A publication Critical patent/JPS645808A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles

Abstract

PURPOSE:To permit the removal of a cavity block while retaining a molded form at the side of a core upon opening molds, by a method wherein at least one piece of discharging rod among the same rods is provided with a retaining recess, formed at the side end of the cavity block, while a turning means, turning the discharging rod provided with the retaining recess, is provided in the title molding tool device. CONSTITUTION:When molten resin is poured into a cavity 21, a part of the molten resin flows into a retaining recess 31A through the gap of a small diametral part at the tip end of a discharging rod 31 provided with the retaining recess whereby a small resin block is formed there. This resin block is continued to resin in the cavity 21 and is retained by the discharging rod 31 provided with the retaining recess at the side of a core block 1. When the cavity block 2 is removed after molding, a molded from a hooked by the core block 1 and is retained, therefore, the molded form will never be adhered to the cavity block 2. A motor 4 is rotated after removing the cavity block 2 to turn the discharging rod 31 provided with the retaining recess once to separate the resin block from the molded form, then, a discharging plate 3 is pushed to eject the molded form out of the core block 1 by the cooperation of all discharging rods including the discharging rod 31 provided with the retaining recess.
JP16262387A 1987-06-30 1987-06-30 Molding tool device Pending JPS645808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16262387A JPS645808A (en) 1987-06-30 1987-06-30 Molding tool device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16262387A JPS645808A (en) 1987-06-30 1987-06-30 Molding tool device

Publications (1)

Publication Number Publication Date
JPS645808A true JPS645808A (en) 1989-01-10

Family

ID=15758126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16262387A Pending JPS645808A (en) 1987-06-30 1987-06-30 Molding tool device

Country Status (1)

Country Link
JP (1) JPS645808A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02277608A (en) * 1989-04-19 1990-11-14 Nissei Plastics Ind Co Mold and molding method with the same mold utilized therefor
WO2010073658A1 (en) 2008-12-26 2010-07-01 サンダイヤポリマー株式会社 Absorbing resin particles, process for producing same, and absorbent and absorbing article both including same
WO2011052140A1 (en) 2009-10-30 2011-05-05 三洋化成工業株式会社 Absorbent resin particles for water-stopping tape, and water-stopping tape containing same
WO2018180547A1 (en) 2017-03-30 2018-10-04 Ｓｄｐグローバル株式会社 Molecular-weight controlling agent for radical polymerization, method for producing polymer using same, and polymer
WO2020213298A1 (en) 2019-04-16 2020-10-22 三洋化成工業株式会社 Method for producing water-absorbing resin particles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02277608A (en) * 1989-04-19 1990-11-14 Nissei Plastics Ind Co Mold and molding method with the same mold utilized therefor
WO2010073658A1 (en) 2008-12-26 2010-07-01 サンダイヤポリマー株式会社 Absorbing resin particles, process for producing same, and absorbent and absorbing article both including same
WO2011052140A1 (en) 2009-10-30 2011-05-05 三洋化成工業株式会社 Absorbent resin particles for water-stopping tape, and water-stopping tape containing same
WO2018180547A1 (en) 2017-03-30 2018-10-04 Ｓｄｐグローバル株式会社 Molecular-weight controlling agent for radical polymerization, method for producing polymer using same, and polymer
WO2020213298A1 (en) 2019-04-16 2020-10-22 三洋化成工業株式会社 Method for producing water-absorbing resin particles

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