US 9,808,976 B2
Injection member attachment structure for injection molding machine
Hiroyasu Asaoka, Yamanashi (JP); and Satoshi Yano, Yamanashi (JP)
Assigned to FANUC CORPORATION, Yamanashi (JP)
Filed by FANUC Corporation, Yamanashi (JP)
Filed on Oct. 30, 2015, as Appl. No. 14/927,468.
Claims priority of application No. 2014-226327 (JP), filed on Nov. 6, 2014.
Prior Publication US 2016/0129617 A1, May 12, 2016
Int. Cl. B29C 45/50 (2006.01); B29C 45/17 (2006.01)
CPC B29C 45/50 (2013.01) [B29C 45/1775 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An injection member attachment structure for attaching an injection member, which is movable forward and backward so as to inject a molten material into a mold, to an injection molding machine, said injection member attachment structure comprising:
a power transmission member configured to transmit forward/backward moving power to the injection member;
a buffer spacer provided, in an injection axis direction of the injection member, between a rear end surface of the injection member and an end surface of the power transmission member facing toward the injection member; and
a regulation member configured to regulate a movement of the buffer spacer in the injection axis direction of the injection member,
wherein
the buffer spacer has a surface directly contacting the injection member and having hardness greater than other portions of the buffer spacer.