JPS574747A - Injection speed controlling valve for injection molding machine - Google Patents

Injection speed controlling valve for injection molding machine

Info

Publication number
JPS574747A
JPS574747A JP7925380A JP7925380A JPS574747A JP S574747 A JPS574747 A JP S574747A JP 7925380 A JP7925380 A JP 7925380A JP 7925380 A JP7925380 A JP 7925380A JP S574747 A JPS574747 A JP S574747A
Authority
JP
Japan
Prior art keywords
piston
valve
valve body
diameter section
speed position
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
JP7925380A
Other languages
Japanese (ja)
Inventor
Mamoru Ozeki
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP7925380A priority Critical patent/JPS574747A/en
Publication of JPS574747A publication Critical patent/JPS574747A/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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/82—Hydraulic or pneumatic circuits

Landscapes

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

Abstract

PURPOSE:To provide a control valve which enables continuous switching of injection speed from a low to high range and vice versa by engaging a piston and a valve with a valve body having a pressure oil inlet/outlet in such a manner as to be regulated in the movement range with a mechanical stopper. CONSTITUTION:A piston 23 is slidably inserted into a valve body 22. A low speed position adjusting screw 24 is engaged with the piston 23 while screwed with the valve body 22 to adjust the low speed position of the piston 23. A valve 25 is inserted slidably into the valve body 22 facing the piston 23 in such a manner that one side thereof projects on the piston 23 having a small diameter section 26a while the other side thereof has a large diameter section 26b whose pressure receiving area is smaller than that of the piston 23 so that the small diameter section 26a and the large diameter section 26b are connected together providing a linear variation section 26. A high speed position adjusting screw 27 is screwed with the valve body 22 to adjust the high speed position of the valve 25.
JP7925380A 1980-06-12 1980-06-12 Injection speed controlling valve for injection molding machine Pending JPS574747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7925380A JPS574747A (en) 1980-06-12 1980-06-12 Injection speed controlling valve for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7925380A JPS574747A (en) 1980-06-12 1980-06-12 Injection speed controlling valve for injection molding machine

Publications (1)

Publication Number Publication Date
JPS574747A true JPS574747A (en) 1982-01-11

Family

ID=13684683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7925380A Pending JPS574747A (en) 1980-06-12 1980-06-12 Injection speed controlling valve for injection molding machine

Country Status (1)

Country Link
JP (1) JPS574747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH057431U (en) * 1991-07-11 1993-02-02 株式会社名機製作所 Hydraulic system for injection molding machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50121828A (en) * 1974-03-02 1975-09-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50121828A (en) * 1974-03-02 1975-09-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH057431U (en) * 1991-07-11 1993-02-02 株式会社名機製作所 Hydraulic system for injection molding machine

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