Barb demolding structure

Abstract

Provided is a barb demolding structure. The structure is used in a mold. The mold opening direction of a mold is employed as a vertical direction, the barb demolding structure comprises a male mold core and a protruding rib on a product is molded. The barb demolding structure comprises a first sliding block, an inclination hole in an inclination angle with the vertical direction is arranged on the first sliding block, an inclined guiding post is arranged in the inclination hole and prods the first sliding block to move and a spacing groove is arranged on the first sliding block. The barb demolding structure comprises a second sliding block which is arranged in the male core, a barb on the product is molded and a recessed groove is arranged on the second sliding block. The barb demolding structure comprises a rotating arm which is movably arranged in the male mold core, one end of the rotating arm extends into the recessed groove, a projection is fixed on the rotating arm and the projection is clamped in the spacing groove. The barb demolding structure drives the rotating arm to rotate through movement of the first sliding block, the rotating arm rotates to prod the second sliding block to exit from the barb on the product, the protruding rib on the product is molded by the male core, when the second sliding block exits from the barb, interference with the protruding rib cannot be generated, and therefore the product with the protruding rib in the exit direction of the barb is molded.

Description

【Technical field】 [0001] The invention relates to a mold structure, in particular to a barb stripping structure of the mold. 【Background technique】 [0002] The plastic parts of the product will be molded using plastic molds, such as plastic parts such as housings of electronic products. Due to the popularity of electronic products, the improvement of plastic molds has also become a subject of extensive research. [0003] When producing plastic products, please refer to figure 1 as shown, figure 1 The product 10 has both barbs 11 and ribs 12, and the withdrawing direction of the barbs 11 and the withdrawing direction of the ribs 12 are inconsistent. see figure 2 As shown, the barb demoulding structure of the prior art usually uses the oblique pin 20 to withdraw from the barb 11, and the oblique pin 20 moves sideways under the force of the ejector plate of the mold to withdraw from the barb 11. However, the convex rib 12 and The oblique pin 20 will interfere, so that th...

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Problems solved by technology

see figure 2 As shown, the barb demoulding structure of the prior art usually uses the oblique pin 20 to withdraw from the barb 11, and the oblique pin 20 moves sideways under the force of the ejector plate of the mold to withdraw from the barb 11. However, the convex rib 12 and The oblique pin 20 will interfere, so that the oblique pin 20 cannot be withdrawn, and the convex rib 12 must be modified. If the customer does not agree to modify the convex rib 12, the mold cannot be opened, and the barb 11 cannot be formed. There is a convex rib 12 in the direction of exit. Products of 10

[0004] In view of this, it is necessary to develop a barb release structure to solve the above-mentioned problem that products with convex ribs in the exit direction of the barb cannot be formed

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