JPS56131060A - Control method for mold clamping force of die-casting machine - Google Patents

Control method for mold clamping force of die-casting machine

Info

Publication number
JPS56131060A
JPS56131060A JP3405880A JP3405880A JPS56131060A JP S56131060 A JPS56131060 A JP S56131060A JP 3405880 A JP3405880 A JP 3405880A JP 3405880 A JP3405880 A JP 3405880A JP S56131060 A JPS56131060 A JP S56131060A
Authority
JP
Japan
Prior art keywords
mold
tensile force
elongation
casting
mold clamping
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
JP3405880A
Other languages
Japanese (ja)
Other versions
JPS5855860B2 (en
Inventor
Yasushi Ouchi
Katsumasa Kanazawa
Hitoaki Kobayashi
Hiroshi Takahashi
Takeshi Kitagawa
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.)
Toyo Machinery and Metal Co Ltd
Hitachi Ltd
Original Assignee
Toyo Machinery and Metal Co Ltd
Hitachi 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 Toyo Machinery and Metal Co Ltd, Hitachi Ltd filed Critical Toyo Machinery and Metal Co Ltd
Priority to JP3405880A priority Critical patent/JPS5855860B2/en
Publication of JPS56131060A publication Critical patent/JPS56131060A/en
Publication of JPS5855860B2 publication Critical patent/JPS5855860B2/en
Expired 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
    • B29C45/7653—Measuring, controlling or regulating mould clamping forces

Abstract

PURPOSE:To hold surface pressure of metallic-mold split surface uniform and in a set range by detecting the elongation of the part where tensile force is generated at the time of the mold clamping of tie bars provided between a fixed platen and supporting part for mold-tightening- force-generator, and by suppressing the tensile force in the set range automatically by releasing the mold. CONSTITUTION:The elongation of the part where tensile force is generated in mold clamping is detected with regard to tie bars 18 provided between fixed platen 14 and supporting part 16 for mold-clamping force-generator; when the arithmetic mean of the elongation of respective tie bars 18 is less than a set lower limit, the mold is released without casting and the part of tie bar 18 generating the tensile force is shortened by its difference from a set center value. When the mean is between a set upper limit and an allowable limit, the casting is carried out and the part of tie bar 18 generating the tensile force is elongated by the difference from the set center value until the mold release of the next casting and when the mean exceeds the allowable limit, the part of tie bar 18 generating the tensile force is elongated by the difference from the set center value without casting, thereby suppressing automatically the arithmetic mean of the elongation of respective tie bars 18 in mold clamping within the set range through a die height adjusting mechanism.
JP3405880A 1980-03-19 1980-03-19 Method of controlling mold clamping force of die casting machine Expired JPS5855860B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3405880A JPS5855860B2 (en) 1980-03-19 1980-03-19 Method of controlling mold clamping force of die casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3405880A JPS5855860B2 (en) 1980-03-19 1980-03-19 Method of controlling mold clamping force of die casting machine

Publications (2)

Publication Number Publication Date
JPS56131060A true JPS56131060A (en) 1981-10-14
JPS5855860B2 JPS5855860B2 (en) 1983-12-12

Family

ID=12403671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3405880A Expired JPS5855860B2 (en) 1980-03-19 1980-03-19 Method of controlling mold clamping force of die casting machine

Country Status (1)

Country Link
JP (1) JPS5855860B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157054U (en) * 1984-03-26 1985-10-19 株式会社日本製鋼所 Toggle type mold clamping device
JPH05435A (en) * 1991-02-07 1993-01-08 Nissei Plastics Ind Co Injection-compression molding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157054U (en) * 1984-03-26 1985-10-19 株式会社日本製鋼所 Toggle type mold clamping device
JPH05435A (en) * 1991-02-07 1993-01-08 Nissei Plastics Ind Co Injection-compression molding machine

Also Published As

Publication number Publication date
JPS5855860B2 (en) 1983-12-12

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