A kind of technology of adding fiber inside the injection part to strengthen the strength of the plastic part

Abstract

The invention discloses a technology for reinforcing the strength of a mold part by adding fiber into the injection mold part. The strength of the injection mold part is reinforced by adding fiber into the injection mold part. The technology for reinforcing the strength of the mold part by adding the fiber into the injection mold part sequentially comprises the steps of manufacturing a fiber skeleton of the injection mold part, winding the fiber around the fiber skeleton, and conducting injection molding again on the fiber skeleton around which the fiber is wound to obtain a finished product. According to the technology, the fiber is added into the injection mold part through the secondary mold injection technology in the manner of continuous procedures of a swing mechanism, the working procedure efficiency is high, distribution of the fiber inside the injection mold part can be controlled, the whole continuous fiber is added into the injection mold part through the technology, the strengthening effect of the injection mold part is good.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a technology for adding fiber inside an injection molded part to reinforce the strength of the plastic part. Background technique [0002] At present, the compressive strength of injection molded parts is not enough, and the shell is prone to bursting. In order to increase the compressive strength and explosion-proof ability of plastic parts without changing the shape of plastic parts, a certain amount of fiber can be added to the injection molding process. The fiber traction structure is formed, so that even if the plastic part is cracked, it is not easy to eject debris, but the traditional fiber addition process cannot control the distribution of fibers in the injection molded part. When additional fiber reinforcement is required for the designated part of the injection molded part, or When designing and manufacturing injection molded parts with different distributions of strengthening a...

AI Technical Summary

Problems solved by technology

[0002] At present, the compressive strength of injection molded parts is not enough, and the shell is prone to bursting. In order to increase the compressive strength and explosion-proof ability of plastic parts without changing the shape of plastic parts, a certain amount of fiber can be added to the injection molding process. The traction structure of fibers is formed, so that even if the plastic part is cracked, it is not easy to eject debris, but the traditional fiber addition process cannot control the distribution of fibers in the injection molded part. When additional fiber reinforcement is required for the designated part of the injection molded part, or When designing and manufacturing injection molded parts with different distribution of strengthening areas, the traditional process cannot meet the needs

[0003] The patent of Publication No. 101712789A discloses a fiber-reinforced injection molding product and its injection molding method, which can add fibers in the injection molding process, but this method mixes the fibers into the injection molding raw materials, and cannot control the amount of fibers in the finished product when manufacturing the finished product. distribution, and the fibers are dispersed in the finished product in a fine form, which reduces the strengthening effect of the fiber on the finished injection molded part

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