Title:
INJECTION MOLDING MACHINE
Document Type and Number:
Japanese Patent JP2016135570
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an injection molding machine coping with a fluctuation in nozzle touch pressure.SOLUTION: An injection molding machine comprises an injection device that injects a molding material into a mold device, a transfer device that makes the injection device advance into and retreat from the mold device, and a controller that controls the transfer device. The transfer device comprises a hydraulic pump, a driving source that actuates the hydraulic pump, a hydraulic actuator that includes a pressure chamber generating a nozzle touch pressure by the hydraulic pressure of a hydraulic fluid supplied from the hydraulic pump, and a control valve that controls a flow of the hydraulic fluid between the pressure chamber and the hydraulic pump. A pressure detector is provided which detects the nozzle touch pressure. The controller monitors the nozzle touch pressure by means of the pressure detector in a state restricting the flow of the hydraulic fluid from the pressure chamber to the hydraulic pump by the control valve.SELECTED DRAWING: Figure 3
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Inventors:
YAMAGUCHI HIROSHI
Application Number:
JP2015011700A
Publication Date:
July 28, 2016
Filing Date:
January 23, 2015
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES
International Classes:
B29C45/20; B22D17/20; B22D17/32; B29C45/76
Domestic Patent References:
| JP2013180515A | 2013-09-12 | |||
| JPH11320611A | 1999-11-24 | |||
| JP2000238110A | 2000-09-05 |
Foreign References:
| WO2006054522A1 | 2006-05-26 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito
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