JPS6475214A - Control device of depressurization and suction of molten resin in injection molding machine - Google Patents

Control device of depressurization and suction of molten resin in injection molding machine

Info

Publication number
JPS6475214A
JPS6475214A JP23240387A JP23240387A JPS6475214A JP S6475214 A JPS6475214 A JP S6475214A JP 23240387 A JP23240387 A JP 23240387A JP 23240387 A JP23240387 A JP 23240387A JP S6475214 A JPS6475214 A JP S6475214A
Authority
JP
Japan
Prior art keywords
suction
molten resin
depressurization
sprue
piston rod
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
JP23240387A
Other languages
Japanese (ja)
Inventor
Shigeru Tsutsumi
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.)
Sanri KK
Original Assignee
Sanri KK
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 Sanri KK filed Critical Sanri KK
Priority to JP23240387A priority Critical patent/JPS6475214A/en
Publication of JPS6475214A publication Critical patent/JPS6475214A/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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2758—Means for preventing drooling by decompression of the moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To enable depressurization and suction of molten resin in proper quantities and corresponding to molding conditions, by a method wherein a depressurization and suction mechanism of the molten resin capable of controlling a quantity of the suction is provided at a desired position where the same is communicated with a sprue. CONSTITUTION:When desired molten resin is injected through a nozzle attachment 9 an injection mechanism A, the molten resin is cast within a cavity 3 from a gate 4 by passing through a sprue 8. Although mold breaking operation is performed by moving a movable mold 1 after cooling and solidification, a depressurization and suction mechanism 10 of the molten resin is worked by interlocking with the breaking operation. In other words, when a piston 20 is shifted to a suction side by letting out or in desired gas or a desired liquid through hydraulic pressure gate ways 22, 23, the molten resin within the sprue 8 is sucked effectively through a driven movement of a suction piston rod 12 and sucked up within a guide pipe body 14 by a quantity of suction corresponding to a quantity of stroke of the piston rod 12. The quantity of stroke of the suction piston rod 12 can be set up freely by a controlling annular body 25.
JP23240387A 1987-09-18 1987-09-18 Control device of depressurization and suction of molten resin in injection molding machine Pending JPS6475214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23240387A JPS6475214A (en) 1987-09-18 1987-09-18 Control device of depressurization and suction of molten resin in injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23240387A JPS6475214A (en) 1987-09-18 1987-09-18 Control device of depressurization and suction of molten resin in injection molding machine

Publications (1)

Publication Number Publication Date
JPS6475214A true JPS6475214A (en) 1989-03-20

Family

ID=16938697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23240387A Pending JPS6475214A (en) 1987-09-18 1987-09-18 Control device of depressurization and suction of molten resin in injection molding machine

Country Status (1)

Country Link
JP (1) JPS6475214A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110900980A (en) * 2019-11-22 2020-03-24 南通市通州区三槐机械制造有限公司 Automatic hose shoulder injection machine and plastic spitting mechanism thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5384052A (en) * 1976-12-30 1978-07-25 Teraoka Shoichi Melted material injection apparatus
JPS61213112A (en) * 1985-03-19 1986-09-22 Nippon Plast Co Ltd Reaction injection molding method
JPS63192548A (en) * 1987-02-04 1988-08-09 Ube Ind Ltd Injection molding apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5384052A (en) * 1976-12-30 1978-07-25 Teraoka Shoichi Melted material injection apparatus
JPS61213112A (en) * 1985-03-19 1986-09-22 Nippon Plast Co Ltd Reaction injection molding method
JPS63192548A (en) * 1987-02-04 1988-08-09 Ube Ind Ltd Injection molding apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110900980A (en) * 2019-11-22 2020-03-24 南通市通州区三槐机械制造有限公司 Automatic hose shoulder injection machine and plastic spitting mechanism thereof
CN110900980B (en) * 2019-11-22 2021-08-27 南通市通州区三槐机械制造有限公司 Automatic hose shoulder injection machine and plastic spitting mechanism thereof

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