Title:
射出成形機
Document Type and Number:
Japanese Patent JP6721672
Kind Code:
B2
Abstract:
An injection molding machine comprises: a mold attachment board to which one of a fixed mold and a movable mold is attached; a coupling board coupled to the mold attachment board with an interval placed therebetween in a mold opening/closing direction; a mold thickness adjustment mechanism that adjusts the interval to adjust mold thickness; and a control unit that controls the mold thickness adjustment mechanism. The mold thickness adjustment mechanism has a screw shaft formed in a rod that couples the mold attachment board and the coupling board to each other, a screw nut held by one of the mold attachment board and the coupling board, and a mold thickness adjustment motor that rotates one of the screw shaft and the screw nut threadedly engaged with each other. The control unit stores a reference position of a position of the screw nut relative to the screw shaft. When the position deviates from the reference position, the control unit resets the position to the reference position.
Inventors:
Katsuyuki Hano
Ogawa
Suwon bullet
Hiroki Tsunefuka
Ogawa
Suwon bullet
Hiroki Tsunefuka
Application Number:
JP2018507467A
Publication Date:
July 15, 2020
Filing Date:
March 27, 2017
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
B29C45/66; B22D17/26; B22D17/32; B22D18/02; B29C45/76
Domestic Patent References:
| JP201524578A | ||||
| JP2014226805A | ||||
| JP2014213507A | ||||
| JP11170321A | ||||
| JP671413A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito