JPS5581058A - Injection method and device of die-casting machine - Google Patents

Injection method and device of die-casting machine

Info

Publication number
JPS5581058A
JPS5581058A JP15318078A JP15318078A JPS5581058A JP S5581058 A JPS5581058 A JP S5581058A JP 15318078 A JP15318078 A JP 15318078A JP 15318078 A JP15318078 A JP 15318078A JP S5581058 A JPS5581058 A JP S5581058A
Authority
JP
Japan
Prior art keywords
pressure
low
strokes
limit switch
injection
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
JP15318078A
Other languages
Japanese (ja)
Inventor
Masayoshi Fujimori
Tadayoshi Tanaka
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.)
FURUKAWA CHIYUUZOU KK
Furukawa Chuzo Kk
Ube Corp
Original Assignee
FURUKAWA CHIYUUZOU KK
Furukawa Chuzo Kk
Ube Industries 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 FURUKAWA CHIYUUZOU KK, Furukawa Chuzo Kk, Ube Industries Ltd filed Critical FURUKAWA CHIYUUZOU KK
Priority to JP15318078A priority Critical patent/JPS5581058A/en
Publication of JPS5581058A publication Critical patent/JPS5581058A/en
Pending legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To prolong the life of metal mold and enable good-quality products to be readily obtained by injecting all strokes under low pressure and injecting the greater portions of the strokes and the final small stroke portions respectively under the specified casting pressure by the operation of limit switch.
CONSTITUTION: The device consists of an injection cylinder 1, electromagnetic changeover valves 3, 10, high-pressure accumulator 4, high-pressure line 8, low- pressure line 9, limit switch 12, etc. All the strokes of injection are regulated to low speeds of about 0.3W0.4m/sec. by way of a regulating valve 5 and the greater portions of the injection strokes are injected under casting pressures of 300W800kg/cm2 by regulating the set pressures of the accumulator 4 and regulating valve 11. The smallest stroke portions (1W2mm) are injected under pressures of 80W200kg/cm2. The above-mentioned changing-over is accomplished by the solenoid valve 10 for changing over of the high-low-pressure lines 8, 9 interlocking to a limit switch 12 by the operation of a piston rod 2. It is also equally well to separately provide high- and low-pressure accumulators and connect these to the cylinder head side 1a by way of an electromagnetic changeover valve. The life of metal mold is prolonged because casting pressure is low.
COPYRIGHT: (C)1980,JPO&Japio
JP15318078A 1978-12-13 1978-12-13 Injection method and device of die-casting machine Pending JPS5581058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15318078A JPS5581058A (en) 1978-12-13 1978-12-13 Injection method and device of die-casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15318078A JPS5581058A (en) 1978-12-13 1978-12-13 Injection method and device of die-casting machine

Publications (1)

Publication Number Publication Date
JPS5581058A true JPS5581058A (en) 1980-06-18

Family

ID=15556788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15318078A Pending JPS5581058A (en) 1978-12-13 1978-12-13 Injection method and device of die-casting machine

Country Status (1)

Country Link
JP (1) JPS5581058A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829561A (en) * 1981-08-13 1983-02-21 Toshiba Mach Co Ltd Injection device for die casting machine
JPH049261A (en) * 1990-04-26 1992-01-14 Ryobi Ltd Manufacture of aluminum die casting product
CN105751465A (en) * 2016-03-05 2016-07-13 苏州立创精密模具科技有限公司 Injection molding method for medical motor seat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139615A (en) * 1974-08-02 1976-04-02 Du Pont ASETAARUARUDEHIDOOKASUIBUNKAI OYOBI SUISOKASURUTAMENONIDANKAIHOHO
JPS5171219A (en) * 1974-12-18 1976-06-19 Ube Industries DAIKASUTOMASHINNOSHASHUTSUKAIRO
JPS5391017A (en) * 1977-01-22 1978-08-10 Fuji Heavy Ind Ltd Preparation of die casting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139615A (en) * 1974-08-02 1976-04-02 Du Pont ASETAARUARUDEHIDOOKASUIBUNKAI OYOBI SUISOKASURUTAMENONIDANKAIHOHO
JPS5171219A (en) * 1974-12-18 1976-06-19 Ube Industries DAIKASUTOMASHINNOSHASHUTSUKAIRO
JPS5391017A (en) * 1977-01-22 1978-08-10 Fuji Heavy Ind Ltd Preparation of die casting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829561A (en) * 1981-08-13 1983-02-21 Toshiba Mach Co Ltd Injection device for die casting machine
JPH049261A (en) * 1990-04-26 1992-01-14 Ryobi Ltd Manufacture of aluminum die casting product
CN105751465A (en) * 2016-03-05 2016-07-13 苏州立创精密模具科技有限公司 Injection molding method for medical motor seat

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