Electric mould opening and closing system of injection moulding machine

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, a brake mechanism for driving a nut on the movable plate to lock, and a mould clamping mechanism for locking the movable plate, wherein

• the mould opening and closing driving device further comprises a brake auxiliary mechanism having a first state and a second state,
• when opening or closing the mould, driven by the mould transferring mechanism, the brake auxiliary mechanism and the mould transferring mechanism make the movable plate move forward or backward in a horizontal direction, and the mould transferring mechanism is separated from the mould clamping mechanism by the brake auxiliary mechanism, and the brake auxiliary mechanism is in the first state;
• when braking, a linkage is formed between the brake mechanism and the mould transferring mechanism, the braking process and the closing mould process end simultaneously, the mould clamping mechanism locks the movable plate tightly, and the brake auxiliary mechanism is in the second state.