Plastic part having insulating part, mould and mould repairing method

Abstract

The invention provides a plastic part having insulating parts, which comprises a plastic part main body having a sharp part; the insulating parts are arranged in the positions close to the sharp end part, the insulating parts surround the sharp part, and the plastic part main body and the insulating parts are connected by water gap materials. The invention further provides a mould for producing the above plastic part and a mould repairing method for obtaining the above mould. Since the insulating parts surround the sharp part, in an electroplating process, the insulating parts form protective rings on the sharp part, after passing by the insulating parts at first, the current has become uniform when reaching an electroplated part, therefore, the uniform thickness of an electroplated layer is ensured, a percent of pass of the electroplated part is improved, and electroplating efficiency is improved. The mould repairing method provided by the invention is simple in simple, newly increased parts are less, and the mould repairing is easy.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to a plastic part with an electric blocking part, a mold for producing the plastic part and a method for modifying the mold. Background technique [0002] After the existing plastic parts are injection molded, they need to be electroplated to form electroplated products. Due to the shape requirements of the electroplated products, some sharp-edged structures are usually designed. The tip has a tip effect during the electroplating process, that is, it will gather Too dense power lines will cause the plating layer to be deposited too quickly at this part, forming accumulation, resulting in inconsistent thickness and size of the plating layer, which often seriously affects the plating defect rate and plating efficiency. [0003] see figure 1 and figure 2 , the existing mold includes a front mold core, a rear mold core 102 and a side core 103, the front mold core, the rear mol...

AI Technical Summary

Problems solved by technology

[0002] After the existing plastic parts are injection molded, they need to be electroplated to form electroplated products. Due to the shape requirements of the electroplated products, some sharp-edged structures are usually designed. The tip has a tip effect during the electroplating process, that is, it will gather Excessively dense power lines lead to the rapid deposition of coatings on this part, forming accumulations, resulting in inconsistent thickness and size of the electroplating layer, which often seriously affects the electroplating defect rate and electroplating efficiency

[0003] see figure 1 and figure 2 , the existing mold includes a front mold core, a rear mold core 102 and a side core 103, the front mold core, the rear mold core 102 and the side core 103 jointly form a product cavity 106, and the front mold core and the rear mold core 102 A main flow channel 104 and a first branch flow channel 105 are provided, the main flow channel 104 communicates with the product cavity 106 through the first flow channel 105, the product cavity 106 has a tip flow channel 107, and the tip flow channel 107 is used to form the tip of the plastic part 108 Part 109, the existing molded plastic part 108 does not have a power-blocking part, and the plastic part 108 will produce a tip effect during electroplating, which will affect the quality of the electroplated part

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