Mold Waterway Structure for Injection Molding of Carrier Reel

Abstract

The invention discloses a mold water way structure used for injection molding of a tape carrying plate. According to the technical scheme, the mold water way structure is characterized by comprising cooling water ways, the cooling water ways include the first water way (11), the second water way (12) and the third water way (13). The first water way (11) is arranged in a cavity (01). The second water way (12) is arranged in a mold core (02). The third water way (13) is arranged in side core-pulling mechanisms (03) which are located between the cavity (01) and the mold core (02) in sets and can relatively slip. The cooling water ways include the first water way, the second water way and the third water way, the three types of cooing water ways are arranged in the cold core, the cavity and the side core-pulling mechanisms respectively, the upper surface, the lower surface and the inner side of the tape carrying plate are cooled respectively, and in other words, the whole surface of the injection-molded piece, namely, the tape carrying plate, is cooled; therefore, when injection molding is conducted on the tape carrying plate, a good cooling effect is achieved for the whole injection-molded piece through the cooling water ways, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of moulds, more specifically, it relates to a mold waterway structure used for injection molding of tape carrier reels. Background technique [0002] The reel is a commonly used part, which is usually used to wind the belt, thus playing the role of fixing the belt, and there are guard plates on both sides, which can generally be called a part of the reel, such as the winding reel of the seat belt, Carrier reels for electronic parts, etc. [0003] In the prior art, some reels are made of high-hardness cardboard. In order to reduce the processing cost of the reels, due to the low cost of plastic materials, many reels are made of plastic injection molding, but for the tape carrier, Its quality is reflected in its lightness, thinness and high structural strength. Simply put, every time its size is reduced by one millimeter, in order to ensure its quality and performance, its processing difficulty rises linearly. Among th...

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Problems solved by technology

[0003] In the prior art, some reels are made of high-hardness cardboard. In order to reduce the processing cost of the reels, due to the low cost of plastic materials, many reels are made of plastic injection molding, but for the tape carrier, Its quality is reflected in its lightness, thinness and high structural strength. Simply put, every time its size is reduced by one millimeter, in order to ensure its quality and performance, its processing difficulty rises linearly. Among these processing difficulties, the waterway is to ensure its lightness, It is an important part of thinness and structural strength. The quality of the waterway determines the cooling speed of the parts during molding. The better the cooling effect of the waterway, the faster the parts are formed, and the production speed will be greatly increased. The same production time can be The production of more injection molded parts will greatly improve the productivity; the more reasonable the setting of the waterway, the cooling of each position of the injection molded parts will prevent the uneven cooling and heating of the injection molded parts after the mold is opened. Watermark, watermark is a kind of defect that will reduce the structural strength of injection molded parts

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