Injection mold for thermoplastic plastics

Abstract

The invention relates to an injection mold for thermoplastic plastics. The injection mold comprises an upper mold base, a lower mold base and a base which are used for forming an injection mold main body; the front end face of the upper mold base and the front end face of the lower mold base are provided with a mold ejecting mechanism used for ejecting out a molded part; a pushing mechanism used for pushing the molded part away is arranged on the right side of the upper end face of the base; the mold ejecting mechanism comprise an ejecting block for ejecting the molded part, a C-shaped frame, a sliding rod, a barb strip block, a square frame, barb teeth and a sliding blocks; the pushing mechanism comprises a pushing block for pushing the injection molded part, a first rack, a second rack, a rotating shaft and a gear ring; the rotating shaft is sleeved with the gear ring, and the gear ring is engaged with the first rack; and the right end face of the upper mold base is fixedly connected with the second rack through a transverse rod. The mold has the beneficial effects that an injection molded part can be automatically ejected out of the lower mold base after injection molding is completed, the situation of mold clamping is prevented, the demolding efficiency is improved, the injection molded part can be automatically pushed away, time and labor are saved, and the injection molding efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of injection molding equipment, in particular to an injection mold for thermoplastics. Background technique [0002] Thermoplastics refer to plastics that are plastic at a certain temperature and solidify after cooling. Thermoplastics have the characteristics of softening when heated and hardening when cooled. Most of the plastics we use in our daily lives fall into this category. It becomes soft and fluid when heated, and hardens when cooled. This process is reversible and can be repeated; injection molding is an important part in the processing of thermoplastic plastic products. The loose granular or powdery raw materials are sent from the injection molding machine to high temperature. It is heated in the barrel, melted and plasticized to make it into a viscous liquid melt, which is filled into the mold at a certain pressure and speed, and the mold is opened after pressure maintaining and cooling to obtai...

AI Technical Summary

Problems solved by technology

[0003] But at present, the traditional injection mold needs to use the cylinder to eject the injection molded part after the injection molding is completed. However, sometimes the injection molded part and the mold are too close, which is prone to jamming and reduces the demoulding efficiency; and the traditional injection mold needs Manually remove the injection molded parts from the mold, resulting in low production efficiency

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