JPS57160562A - Die opening and closing device for molding machine - Google Patents

Die opening and closing device for molding machine

Info

Publication number
JPS57160562A
JPS57160562A JP4894681A JP4894681A JPS57160562A JP S57160562 A JPS57160562 A JP S57160562A JP 4894681 A JP4894681 A JP 4894681A JP 4894681 A JP4894681 A JP 4894681A JP S57160562 A JPS57160562 A JP S57160562A
Authority
JP
Japan
Prior art keywords
piston
die
line
lines
smoothly
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
JP4894681A
Other languages
Japanese (ja)
Other versions
JPS5914301B2 (en
Inventor
Tsuneo Ishihara
Yoshio Ando
Shigeo Kaiho
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP4894681A priority Critical patent/JPS5914301B2/en
Publication of JPS57160562A publication Critical patent/JPS57160562A/en
Publication of JPS5914301B2 publication Critical patent/JPS5914301B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • 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
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To reduce die closing time and to open and close dies smoothly by providig check valves in the bypassing passages on the discharge side of pistons, and controlling the die closing operation of cylinders by shutting off the passages thereby controlling die opening and closing speeds effectively. CONSTITUTION:A flow rate control valve 11 is moved to the left from a neutral position A, and lines 12, 13 and lines 16, 17 are connected in a position B. The pressure oil from a pump 15 is supplied through the valuve 11 to the line 12 to move a piston 8b downward. The die closing is accomplished smoothly by comparing the speed set with a setter 20 and the speed detected with a detector 19 which measures the moving position of the piston 8b and operating the valve 11 by the results of said comparison. As the piston 8b moves downward, the oil on the lower side flows through the line 13 and is blocked by a check valve 25 so that is goes through a bypass line 27 and a check valve 28 and joins to the line 16. Further, its backflow to the pump side is blocked by a check valve 24, and the oil is supplied onto the piston 8b through the lines 16, 12. Thereby, the die closing is accomplished quickly. Since the speed is decelerated at the time of die registering, the dies are closed smoothly without any damage.
JP4894681A 1981-03-31 1981-03-31 Molding machine mold opening/closing device Expired JPS5914301B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4894681A JPS5914301B2 (en) 1981-03-31 1981-03-31 Molding machine mold opening/closing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4894681A JPS5914301B2 (en) 1981-03-31 1981-03-31 Molding machine mold opening/closing device

Publications (2)

Publication Number Publication Date
JPS57160562A true JPS57160562A (en) 1982-10-02
JPS5914301B2 JPS5914301B2 (en) 1984-04-04

Family

ID=12817435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4894681A Expired JPS5914301B2 (en) 1981-03-31 1981-03-31 Molding machine mold opening/closing device

Country Status (1)

Country Link
JP (1) JPS5914301B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145351A (en) * 1982-02-24 1983-08-30 Toshiba Mach Co Ltd Die opening and closing device
JPS60112417A (en) * 1983-11-24 1985-06-18 Fanuc Ltd Mold locking device
TWI386295B (en) * 2006-12-15 2013-02-21 Hon Hai Prec Ind Co Ltd Apparatus, system and method for control of opening and closing a die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145351A (en) * 1982-02-24 1983-08-30 Toshiba Mach Co Ltd Die opening and closing device
JPH0335019B2 (en) * 1982-02-24 1991-05-24 Toshiba Machine Co Ltd
JPS60112417A (en) * 1983-11-24 1985-06-18 Fanuc Ltd Mold locking device
JPH0122135B2 (en) * 1983-11-24 1989-04-25 Fanuc Ltd
TWI386295B (en) * 2006-12-15 2013-02-21 Hon Hai Prec Ind Co Ltd Apparatus, system and method for control of opening and closing a die

Also Published As

Publication number Publication date
JPS5914301B2 (en) 1984-04-04

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