US 11,858,185 B2
Opening/closing apparatus and molding apparatus comprising the same
Hideaki Kitta, Numazu (JP); Noriyuki Sasaki, Numazu (JP); and Masato Kinoshita, Numazu (JP)
Assigned to Shibaura Machine Co., Ltd., Tokyo (JP)
Filed by Shibaura Machine Co., Ltd., Tokyo (JP)
Filed on Jun. 30, 2021, as Appl. No. 17/364,320.
Application 17/364,320 is a division of application No. 15/551,787, granted, now 11,077,594, previously published as PCT/JP2016/054650, filed on Feb. 18, 2016.
Claims priority of application No. 2015-029733 (JP), filed on Feb. 18, 2015.
Prior Publication US 2021/0394412 A1, Dec. 23, 2021
Int. Cl. B29C 45/17 (2006.01); B29C 33/20 (2006.01); B22D 17/26 (2006.01); B22D 17/22 (2006.01); B29C 45/66 (2006.01)
CPC B29C 45/1761 (2013.01) [B22D 17/22 (2013.01); B22D 17/26 (2013.01); B22D 17/263 (2013.01); B29C 33/20 (2013.01); B29C 45/1744 (2013.01); B29C 45/661 (2013.01); B29C 2045/662 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An opening/closing apparatus comprising:
a movable platen configured to mount a first mold of a pair of molds, the movable platen comprising:
a mold clamping platen having a projecting portion in a mold closing direction-side surface;
a mold mounting platen mounted to the projecting portion of the mold clamping platen and configured to project from side surfaces of the mold clamping platen, the mold mounting platen comprising a mold mounting surface; and
a guide mechanism fixed to the mold clamping platen and supporting the mold mounting platen, the guide mechanism comprising:
a pair of platen surface support portions,
a pair of leg portions constructed integrally with the pair of platen surface support portions respectively,
a pair of linear motion guides held on the pair of leg portions to prevent floating of the mold clamping platen, and
an adjustment mechanism configured to adjust a height of the mold mounting platen, the adjustment mechanism provided between the pair of platen surface support portions of the guide mechanism and the first mold on both sides of the mold mounting surface of the mold mounting platen,
wherein only the mold clamping platen is fixed to the guide mechanism by using fixing members, while the mold mounting platen is not fixed but placed on the pair of the platen surface support portions of the guide mechanism;
a fixed platen configured to mount a second mold of the pair of molds in a position opposite the first mold;
a pressure-receiving platen connected to the fixed platen by tie bars; and
an opening/closing mechanism connecting the pressure-receiving platen and the movable platen, the opening/closing mechanism being configured to open and close the pair of molds by moving the movable platen back and forth.
 
4. An opening/closing apparatus comprising:
a movable platen configured to mount a first mold of a pair of molds, the movable platen comprising:
a mold clamping platen having a projecting portion in a mold closing direction-side surface;
a mold mounting platen mounted to the projecting portion of the mold clamping platen and configured to project from side surfaces of the mold clamping platen, the mold mounting platen comprising a mold mounting surface; and
a guide mechanism constructed integrally with the mold clamping platen and supporting the mold mounting platen, the guide mechanism comprising:
a pair of platen surface support portions,
a pair of leg portions constructed integrally with the pair of platen surface support portions respectively,
a pair of linear motion guides held on the pair of leg portions to prevent floating of the mold clamping platen, and
an adjustment mechanism configured to adjust a height of the mold mounting platen, the adjustment mechanism provided between the pair of platen surface support portions of the guide mechanism and the first mold on both sides of the mold mounting surface of the mold mounting platen,
wherein only the mold clamping platen is fixed to the guide mechanism by using fixing members, while the mold mounting platen is not fixed but placed on the pair of the platen surface support portions of the guide mechanism;
a fixed platen configured to mount a second mold of the pair of molds in a position opposite the first mold;
a pressure-receiving platen connected to the fixed platen by tie bars; and
an opening/closing mechanism connecting the pressure-receiving platen and the movable platen, the opening/closing mechanism being configured to open and close the pair of molds by moving the movable platen back and forth.