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JPS6418620A - Mold temperature adjusting apparatus for injection molding machine - Google Patents

Mold temperature adjusting apparatus for injection molding machine

Info

Publication number
JPS6418620A
JPS6418620A JP17490187A JP17490187A JPS6418620A JP S6418620 A JPS6418620 A JP S6418620A JP 17490187 A JP17490187 A JP 17490187A JP 17490187 A JP17490187 A JP 17490187A JP S6418620 A JPS6418620 A JP S6418620A
Authority
JP
Japan
Prior art keywords
mold
temp
cooling medium
electromagnetic valve
injection molding
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
JP17490187A
Other languages
Japanese (ja)
Inventor
Takayasu Inui
Teruo Manzeki
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP17490187A priority Critical patent/JPS6418620A/en
Publication of JPS6418620A publication Critical patent/JPS6418620A/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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7306—Control circuits therefor
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/007—Tempering units for temperature control of moulds or cores, e.g. comprising heat exchangers, controlled valves, temperature-controlled circuits for fluids

Landscapes

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

Abstract

PURPOSE:To improve cooling effect of a mold and to attempt to shorten a cycle of injection molding, by controlling at least either flow rate or temp. of a cooling medium flowing in a mold so as to coincide with the resin filling cycle. CONSTITUTION:While a cooling medium heated by means of a heater 8 is being cycled in a mold 3 by means of a pump 4, temp. of the mold 3 is gradually elevated and at the time when it reaches nearly a set temp. T1, electric current to the heater 8 is turned off. Thereafter, when the mold temp. is stabilized at the set temp. T1, a warming-up period is finished and an injection signal is output to an injection molding machine 2. An electromagnetic valve 9 becomes off and an electromagnetic valve 10 becomes on. Filling of a resin in the mold 3 is started, and cooling the cooling medium by means of a cooler 7 is started. When the mold temp. t2 begins to be lowered, the electromagnetic valve 9 is set on and the electromagnetic valve 10 is set off, and heating of the cooling medium is started. As cooling and heating of the cooling medium is pulsatingly carried out in one filling cycle, the mold temp. elevated by filling the resin can be quickly lowered to a proper temp.
JP17490187A 1987-07-15 1987-07-15 Mold temperature adjusting apparatus for injection molding machine Pending JPS6418620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17490187A JPS6418620A (en) 1987-07-15 1987-07-15 Mold temperature adjusting apparatus for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17490187A JPS6418620A (en) 1987-07-15 1987-07-15 Mold temperature adjusting apparatus for injection molding machine

Publications (1)

Publication Number Publication Date
JPS6418620A true JPS6418620A (en) 1989-01-23

Family

ID=15986671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17490187A Pending JPS6418620A (en) 1987-07-15 1987-07-15 Mold temperature adjusting apparatus for injection molding machine

Country Status (1)

Country Link
JP (1) JPS6418620A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994022656A1 (en) * 1993-03-26 1994-10-13 Kunststofftechnik F.U.H. Riesselmann Gmbh Process and installation for tempering moulding tools for plastics
EP0704293A2 (en) * 1994-09-27 1996-04-03 Kunststofftechnik F.u.H. Riesselmann GmbH Temperature regulating process for injection units and injection moulds for plastics
EP0904911A1 (en) * 1997-09-30 1999-03-31 Regloplas AG Process and apparatus for regulating temperature of a load with a tempering medium
WO2004012921A1 (en) * 2002-07-31 2004-02-12 Am Service S.R.L. Mould thermoregulation system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994022656A1 (en) * 1993-03-26 1994-10-13 Kunststofftechnik F.U.H. Riesselmann Gmbh Process and installation for tempering moulding tools for plastics
US5683633A (en) * 1993-03-26 1997-11-04 Kunststofftechnik F. U. H. Riesselmann Gmbh Process and device for tempering molding tools for processing plastics
EP0704293A2 (en) * 1994-09-27 1996-04-03 Kunststofftechnik F.u.H. Riesselmann GmbH Temperature regulating process for injection units and injection moulds for plastics
EP0704293A3 (en) * 1994-09-27 1997-05-02 Riesselmann F & H Kunststoff Temperature regulating process for injection units and injection moulds for plastics
US5720912A (en) * 1994-09-27 1998-02-24 Kunststofftechnik F. U. H. Riesselmann Gmbh Method for controlling the temperature of an injection-molding machine and mold tool units
EP0904911A1 (en) * 1997-09-30 1999-03-31 Regloplas AG Process and apparatus for regulating temperature of a load with a tempering medium
WO2004012921A1 (en) * 2002-07-31 2004-02-12 Am Service S.R.L. Mould thermoregulation system

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