Reversible deformation correction method for injection mold

An injection mold, anti-deformation technology, applied in the field of injection mold anti-deformation correction, can solve problems such as deformation and reduce mold cost

Active Publication Date: 2022-06-24
QINGDAO HISENSE MOLD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention provides a method for correcting anti-deformation of injection molds, which can accurately predict the deviation v...

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  • Reversible deformation correction method for injection mold
  • Reversible deformation correction method for injection mold
  • Reversible deformation correction method for injection mold

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified an...

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Abstract

The invention provides a reversible deformation correction method for an injection mold, which can accurately predict the deviation value of an actual product, effectively solve the problem of deformation of a plastic product after injection molding and reduce the mold cost. Comprising the following steps: 1) determining a datum point and a plurality of measuring points of a product according to a product tolerance diagram; 2) adjusting the basic size value of each measuring point in the 3D digital model of the product; 3) carrying out first mold flow deformation analysis; (4) designing and manufacturing a mold; 5) testing the mold for the first time; (6) measuring the size of a measuring point of the test mold sample piece; 7) obtaining a deformation correction coefficient Ki; according to the correction method, the corresponding relation between the deformation correction value and the actual measurement value of a test mold sample piece can be established, and the predicted measurement value of the product can be predicted during secondary mold flow deformation analysis, so that the mold cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of injection moulds, and particularly relates to a method for correcting the inverse deformation of injection moulds. Background technique [0002] Under the development trend of automobile lightweight, the replacement of metal by plastic is an important part of it. The injection molding products are widely used because of their high production efficiency and the ability to manufacture products with complex structures. [0003] Some high-performance plastic products can be a good substitute for metal parts. For example, plastic parts reinforced with glass fiber can work in an environment of 120 ℃ in the engine compartment for a long time. However, injection molding products of this type of material have a major technical difficulty, that is, due to the orientation of glass fibers, the shrinkage of the material is anisotropic. Uncertainty. And some automotive plastic parts have tighter tolerances, which re...

Claims

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Application Information

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IPC IPC(8): B29C33/38B29C45/26
CPCB29C33/3835B29C45/26Y02P90/30
Inventor 黄二力邴兆昱程建平潘伟刘琴赵国群
Owner QINGDAO HISENSE MOLD
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