High-speed-driven injection molding machine mold closing structure

Abstract

The invention discloses a high-speed-driven injection molding machine mold closing structure, and belongs to the technical field of injection molding machine. The high-speed-driven injection molding machine mold closing structure comprises a base, a bottom plate, a fixed mold plate, a movable mold plate, an acceleration assembly and an auxiliary separation assembly, a groove is formed in the base, the position, close to the surface of the base, of the groove is hinged to the bottom plate, a vertical rod is fixed to the upper end of the bottom plate, a guide rod penetrates through the vertical rod, the movable mold plate is slidably connected to the outside of the guide rod, the fixed mold plate is fixed to the upper end of the base, and a driving mechanism is fixed to the end, away from the fixed mold plate, of the movable mold plate. According to the structure, auxiliary acceleration of the injection molding machine mold closing structure is carried out through the magnetic attraction effect and mechanical rotation, mold closing can be rapidly carried out, losses of pressure, temperature and the like are reduced in the whole process of injecting melt into a cavity, then the balance is improved when the whole cavity is filled with the melt, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of injection molding machines, in particular to a mold clamping structure of a high-speed drive injection molding machine. Background technique [0002] At present, the mainstream all-electric injection molding machine mold opening and closing structure on the market adopts a five-point mechanical hinge structure. The mold moves in a straight line. The advantage of this structure is that the linear movement speed is fast and the clamping force amplification ratio is high. The disadvantage is that the clamping structure is driven by a servo motor. Once the electrical components fail, the torque provided by the servo motor will be amplified by the toggle. Several times of the fixed value, that is, the clamping force of the injection molding machine is several times of the set value, it is very easy to damage the mold, and the safety performance is difficult to be guaranteed. [0003] Chinese patent CN 10263...

AI Technical Summary

Problems solved by technology

[0002] At present, the mainstream all-electric injection molding machine mold opening and closing structure on the market adopts a five-point mechanical hinge structure. The mold moves in a straight line. The advantage of this structure is that the linear movement speed is fast and the clamping force amplification ratio is high. The disadvantage is that the clamping structure is driven by a servo motor. Once the electrical components fail, the torque provided by the servo motor will be amplified by the toggle. Several times of the fixed value, that is, the clamping force of the injection molding machine is several times of the set value, it is very easy to damage the mold, and it is difficult to guarantee the safety performance

[0003] Chinese patent CN 102632596 A "Electro-hydraulic hybrid injection molding machine mold opening and closing structure and its rapid mold opening and closing control method" discloses a mold opening and closing device for direct pressure mold opening and closing injection molding machines. It is set on the rear template, including a pair of brake plates, mold moving rod, high-pressure cylinder and ball screw. The advantage of this structure is that the linear motion speed is fast, but the disadvantage is that there are many parts and complex structure, the mold opening and closing speed is slow, and the operation is not stable. Stable, uncontrollable mold moving force

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