Mold gap treatment device during mask injection molding

Abstract

The invention relates to the technical field of masks, and discloses a mold gap treatment device during mask injection molding. The mold gap treatment device comprises an upper mold and a lower mold,a magnetic block is fixedly connected to the interior of the upper mold, a limiting groove is formed in the upper mold, a dielectric plate is movably connected to the interior of the limiting groove,the bottom of the dielectric plate is movably connected with a connecting spring, and the bottom of the connecting spring is movably connected with a protrusion. According to the mold gap treatment device for mask injection molding, when the dielectric plate moves upwards, current is generated between a positive plate and a negative plate, an electromagnet is powered on to attract the magnetic block, the upper mold and the lower mold are attracted, and at the moment, an injection molding solution is poured from an injection molding opening and formed in the upper mold and the lower mold, and when the injection molding solution flows into a bottom cavity, current is generated at the two ends of a semiconductor chilling plate, a magneto-rheological body is changed into a solid state from a liquid state, the upper mold and the lower mold are completely buckled without gaps, the mask manufacturing percent of pass is increased, and the injection molding cost is reduced.

Description

technical field [0001] The invention relates to the technical field of masks, in particular to a mold gap processing device for injection molding of masks. Background technique [0002] Face shields are protective equipment for protecting the human face. Masks used in different applications may play different roles. Masks are generally mass-produced. During the manufacturing process of masks, the masks need to be injection molded, and the injection solution is injected into the upper mold and the lower mold. In the injection cavity between the molds, but due to the existence of gaps in the process of merging the upper mold and the lower mold, the injection solution may leak from the joint. [0003] It may lead to the incompleteness of the molding mold due to the loss of the injection molding solution during molding, resulting in unsaturation inside the injection cavity, resulting in waste of materials, lowering the pass rate of the mold, and dust may enter the interior of th...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a mold gap processing device for mask injection, which has the advantages of avoiding the leakage of injection molding solution, improving the pass rate of mask production, saving injection molding costs, and solving the problem of upper mold Due to the existence of gaps in the process of merging with the lower mold, the injection solution may leak from the clamping part, which may lead to the incompleteness of the molding mold due to the loss of the injection solution during molding, resulting in unsaturation inside the injection cavity , resulting in waste of materials and lower pass rate of molds

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