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A kind of injection mold for cushioning l-shaped piece

An injection mold, L-shaped technology, applied in the field of injection molds for buffering L-shaped pieces, can solve problems such as product surface depression, and achieve the effect of ensuring product dimensional accuracy

Active Publication Date: 2021-02-26
友信精密实业(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an injection mold for cushioning L-shaped pieces, so as to solve the problem that the existing injection molds easily cause depressions on the product surface

Method used

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  • A kind of injection mold for cushioning l-shaped piece
  • A kind of injection mold for cushioning l-shaped piece
  • A kind of injection mold for cushioning l-shaped piece

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Embodiment Construction

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0031] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0032] Unless otherwise def...

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Abstract

The invention belongs to the technical field of injection molding processing. The invention provides an injection mold for cushioning L-shaped pieces, which includes a front mold structure and a rear mold structure. The front mold structure includes an upper mold plate, a feeding assembly, a thimble bottom plate, a thimble panel, an upper mold core, an upper mold core, and an insert And the inclined top assembly, the inclined top assembly includes the inclined top head, the inclined top rod, the inclined top foot, the inclined top base, the pin and the fixing assembly, the upper end of the inclined top base is connected with the thimble panel, and the insert and the inclined top form an L-shaped cavity , the L-shaped cavity communicates with the product cavity. During processing, the glue is fed by the feeding component, and it impacts the L-shaped cavity first, so that the glue flow does not rush against the product cavity, which plays a buffer role. When the rubber flows into the product cavity, the cross-sectional area of ​​the L-shaped cavity is larger than that of the input The glue inlet of the material component slows down the flow rate to ensure that there are no air marks, trapped air, jet lines and shrinkage depressions on the front appearance of the product; the L-shaped cavity is set in the middle of the product cavity, from the glue inlet to the periphery of the product The distance is relatively short to ensure the dimensional accuracy of the product.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to an injection mold for cushioning L-shaped pieces. Background technique [0002] In the shell products of injection molding, there is a type of shell whose surface is a smooth plane, and there are many connecting ribs and positioning plates inside. Therefore, when injection molding, the product is required to have a good front appearance and no basic defects. . The difficulty is the choice of the location and style of the glue inlet. When a gate close to the side of the product is used, the distance from filling to the opposite side will be longer, and the injection pressure will be high, resulting in differences in the side length of the product. When several gates are used to fill simultaneously from positions close to the side, the rubber material will outflank the product from the side to the middle of the product, and defects such as weld lines and trapped air wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/26B29C45/40
CPCB29C45/26B29C45/2602B29C45/4005
Inventor 章庆华
Owner 友信精密实业(深圳)有限公司
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