Title:
ELECTRIC DIE-CASTING MACHINE
Document Type and Number:
WIPO Patent Application WO/2016/072293
Kind Code:
A1
Abstract:
An electric injection device 1 of a die-casting machine is provided with: a rotatably held screw shaft 5; a nut 7 that is screwed onto the screw shaft 5; an injection plunger 9 that is driven forward and backward in conjunction with the forward and backward movement of the nut 7; an injection electric servomotor 11 and a pressure-increasing electric servomotor 12 that rotationally drive the screw shaft 5; a one-way clutch 13 that is provided between the screw shaft 5 and the pressure-increasing electric servomotor 12; and a shock buffering device 10 that absorbs surge pressure that is applied to the injection plunger 9. The shock buffering device 10 includes: an elastic member 36 that receives surge pressure that is applied to the injection plunger 9 and elastically deforms; and a hydraulic damper device 37 that absorbs the vibration of the elastic member 36.
Inventors:
NAKATSUKA YOSHIHISA (JP)
Application Number:
PCT/JP2015/079948
Publication Date:
May 12, 2016
Filing Date:
October 23, 2015
Export Citation:
Assignee:
TOYO MACHINERY & METAL (JP)
International Classes:
B22D17/32; F16F7/00
Foreign References:
| JP2014079763A | 2014-05-08 | |||
| JP2010260070A | 2010-11-18 | |||
| JP2011156579A | 2011-08-18 | |||
| JP2009002488A | 2009-01-08 |
Attorney, Agent or Firm:
The Patent Body Corporate TAKEWA INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Takekazu international patent firm (JP)
Patent business corporation Takekazu international patent firm (JP)
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