US 12,447,657 B2
Electric mould opening and closing system of injection moulding machine
Minghua Chen, Suzhou (CN)
Assigned to SUZHOU GIENKEE PLASTIC TECHNOLOGY CO. , LTD., Suzhou (CN)
Filed by SUZHOU GIENKEE PLASTIC TECHNOLOGY CO. , LTD., Suzhou (CN)
Filed on Mar. 8, 2023, as Appl. No. 18/180,561.
Application 18/180,561 is a continuation of application No. PCT/CN2020/136094, filed on Dec. 14, 2020.
Claims priority of application No. 202010943740.4 (CN), filed on Sep. 9, 2020.
Prior Publication US 2023/0219271 A1, Jul. 13, 2023
Int. Cl. B29C 45/03 (2006.01); B29C 45/17 (2006.01); B29C 45/64 (2006.01); B29C 45/66 (2006.01)
CPC B29C 45/03 (2013.01) [B29C 45/64 (2013.01); B29C 45/66 (2013.01); B29C 2045/1792 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electric mould opening and closing system for an injection moulding machine, comprising a body, a fixed plate, a movable plate, and a mould opening and closing driving device, wherein the mould opening and closing driving device comprises
a mould transferring mechanism for driving the movable plate to move back and forth in a horizontal direction relative to the fixed plate, the mould transferring mechanism comprises a screw rod extending along a length direction of a mould clamping rod and a nut fitting the screw rod;
a braking module for driving the movable plate to lock relative to the fixed plate, the braking module rotates around a moving direction of the movable plate and is formed on the movable plate;
a mould clamping mechanism for locking the movable plate, to the fixed plate, the mould clamping mechanism comprises the mould clamping rod and a mould clamping cylinder, the mould clamping rod crosses the movable plate and the braking module, the mould clamping cylinder drives the mould clamping rod to drive the movable plate to move transversely; and
a brake auxiliary mechanism, the brake auxiliary comprises a clutch, the clutch has a first mode and a second mode, when in the first mode, the mould transferring mechanism is connected to the braking module; and when in the second mode, the mould transferring mechanism is disengaged from the braking module;
when the movable plate is opened or closed relative to the fixed plate, the braking module moves linearly relative to the mould clamping rod, driven by the mould transferring mechanism, the brake auxiliary mechanism and the mould transferring mechanism make the movable plate move forward or backward in the horizontal direction, and the mould transferring mechanism is separated from the mould clamping mechanism by the brake auxiliary mechanism;
when braking, a linkage is formed between the braking module and the mould transferring mechanism, the mould clamping mechanism locks the movable plate tightly;
after braking, the braking module is fixed relative to the mould clamping rod.