JPS6453754A - Die-casting injection pressure intensifying device - Google Patents

Die-casting injection pressure intensifying device

Info

Publication number
JPS6453754A
JPS6453754A JP20706587A JP20706587A JPS6453754A JP S6453754 A JPS6453754 A JP S6453754A JP 20706587 A JP20706587 A JP 20706587A JP 20706587 A JP20706587 A JP 20706587A JP S6453754 A JPS6453754 A JP S6453754A
Authority
JP
Japan
Prior art keywords
pressure
die
casting
injection
cylinder
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
JP20706587A
Other languages
Japanese (ja)
Inventor
Yoshitaka Takanezawa
Sakae Hosoya
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.)
Hitachi Ltd
Original Assignee
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP20706587A priority Critical patent/JPS6453754A/en
Publication of JPS6453754A publication Critical patent/JPS6453754A/en
Pending legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To improve the reliability of a die-casting casting and the quality of high precision by executing the feedback of a signal to a control part at the time when detecting the pressure inside a pressure intensifying cylinder directly and it does not reach the specified pressure, and correcting the pressure. CONSTITUTION:After pouring the molten metal in the specified amt. into a sleeve 3 an injection cylinder 5 is actuated and the molten metal is charged into a die 1 under pressure by pushing an injection chip 4 therein. After the injection chip 4 reaching the terminal position a pressure intensifying cylinder 6 is actuated to execute the injection pressure intensifying and the specified set pressure is applied on a die-casting casting. At this time, the pressure inside the cylinder 6 is detected and at the time when it does not reach to the set pressure a signal is fed back to a control part 7 and the pressure is corrected so as to apply the set pressure. Consequently the generation of a defective product based on the pressure shortage can be reduced.
JP20706587A 1987-08-20 1987-08-20 Die-casting injection pressure intensifying device Pending JPS6453754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20706587A JPS6453754A (en) 1987-08-20 1987-08-20 Die-casting injection pressure intensifying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20706587A JPS6453754A (en) 1987-08-20 1987-08-20 Die-casting injection pressure intensifying device

Publications (1)

Publication Number Publication Date
JPS6453754A true JPS6453754A (en) 1989-03-01

Family

ID=16533622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20706587A Pending JPS6453754A (en) 1987-08-20 1987-08-20 Die-casting injection pressure intensifying device

Country Status (1)

Country Link
JP (1) JPS6453754A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212850A (en) * 1982-06-03 1983-12-10 Toshiba Mach Co Ltd Method for regulating injection condition automatically
JPS6237711U (en) * 1985-08-23 1987-03-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212850A (en) * 1982-06-03 1983-12-10 Toshiba Mach Co Ltd Method for regulating injection condition automatically
JPS6237711U (en) * 1985-08-23 1987-03-06

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