JPS56131063A - Shot pressure controlling method of die-casting machine - Google Patents

Shot pressure controlling method of die-casting machine

Info

Publication number
JPS56131063A
JPS56131063A JP3406080A JP3406080A JPS56131063A JP S56131063 A JPS56131063 A JP S56131063A JP 3406080 A JP3406080 A JP 3406080A JP 3406080 A JP3406080 A JP 3406080A JP S56131063 A JPS56131063 A JP S56131063A
Authority
JP
Japan
Prior art keywords
shot
pressure
oil pressure
measured
judged whether
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
JP3406080A
Other languages
Japanese (ja)
Other versions
JPS5947626B2 (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 JP3406080A priority Critical patent/JPS5947626B2/en
Publication of JPS56131063A publication Critical patent/JPS56131063A/en
Publication of JPS5947626B2 publication Critical patent/JPS5947626B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To improve and stabilize the quality of die-casted materials, by measuring the oil pressure in the shot cylinder at every casting shot and by automatically controlling the shot pressure so that it may be in the set range, by comparing the measured oil pressure and the set oil pressure.
CONSTITUTION: The shot is started at step 101, and after a period of about 2sec has passed at step 102, it is judged whether an abnormal oil pressure occurred or not at step 103, and when no abnormal oil pressure has occurred an NO signal is outputted. Then, at step 104, it is judged whether the shot speed has been read or not and at step 105 it is judged whether the plunger speed has become O or not. When the judgement at step 105 is YES, the oil pressure in the shot ring is measured at a specified point at step 107, after waiting for a specified time at step 106, and the measured pressure and the set pressure are compared at step 108 and, when the measured pressure is out of the allowable range, an NG signal is outputted to step 109. When the NG signal is continuously outputted for a specified times, the measured pressures are averaged at step 110 and the averaged value is compared with the set value, and opening and closing of the set valve for increasing pressure is adjusted at step 112.
COPYRIGHT: (C)1981,JPO&Japio
JP3406080A 1980-03-19 1980-03-19 Shot pressure control method for die casting machine Expired JPS5947626B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3406080A JPS5947626B2 (en) 1980-03-19 1980-03-19 Shot pressure control method for die casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3406080A JPS5947626B2 (en) 1980-03-19 1980-03-19 Shot pressure control method for die casting machine

Publications (2)

Publication Number Publication Date
JPS56131063A true JPS56131063A (en) 1981-10-14
JPS5947626B2 JPS5947626B2 (en) 1984-11-20

Family

ID=12403724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3406080A Expired JPS5947626B2 (en) 1980-03-19 1980-03-19 Shot pressure control method for die casting machine

Country Status (1)

Country Link
JP (1) JPS5947626B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5871458U (en) * 1981-10-31 1983-05-14 株式会社アーレスティ die casting machine
JPH03458A (en) * 1989-05-29 1991-01-07 Toshiba Mach Co Ltd Method for detecting raising pressure time in die casting machine
JP2010048332A (en) * 2008-08-21 2010-03-04 Nobuyuki Sugimura Hydraulic pressure circuit

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181328U (en) * 1984-05-09 1985-12-02 株式会社　アデランス Stopper for wig
JPH047148Y2 (en) * 1986-05-13 1992-02-26
JPS6443801U (en) * 1987-09-11 1989-03-16
JP3024297U (en) * 1995-11-01 1996-05-17 株式会社アートアンドクラフト Hair tie

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5871458U (en) * 1981-10-31 1983-05-14 株式会社アーレスティ die casting machine
JPH03458A (en) * 1989-05-29 1991-01-07 Toshiba Mach Co Ltd Method for detecting raising pressure time in die casting machine
JP2010048332A (en) * 2008-08-21 2010-03-04 Nobuyuki Sugimura Hydraulic pressure circuit

Also Published As

Publication number Publication date
JPS5947626B2 (en) 1984-11-20

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