Method for molding simulated thread high-pressure injection die

An injection mold and molding method technology, applied in the field of molding molds for automotive interior parts, can solve the problems of excessively long process flow, poor dimensional stability, and high single-piece cost, and achieve the reduction of supporting personnel, stable external dimensions, and shortened process. Effect

Inactive Publication Date: 2014-06-04
QUANXING TOOLING EQUIP NANJING
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Problems solved by technology

[0004] The above method has the following deficiencies: the technical process is too long, the operation is complicated, the unit cost is high, the defect rate is high, the dimensional stability is poor, the use of adhesive, the deficiencies that the labor and equipment costs are higher

Method used

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  • Method for molding simulated thread high-pressure injection die

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing:

[0019] The main inventive point of the present invention is the making of the cavity in the mould, which can be made using the following manufacturing techniques:

[0020] Method 1: The process is that the product designer uses 3D design software to model the required 3D model. The digital model should include the pattern of the sewing thread groove, the pattern of the sewing thread and the detailed features of the sewing thread, and then the mold designer based on The digital model separates the male and female molds and designs the structure of the mold. After the completion, the CNC machining center is used to carve out the required sewing lines and various lines, and the cavity is processed with bite lines. After the cavity is made, it is loaded into the master mold and locked together with bolts.

[0021] Method 2: 1. Use a CNC milling machine to process the product s...

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Abstract

The invention discloses a method for molding a simulated thread high-pressure injection die. The method comprises the following steps: modeling a required 3D (three-dimensional) model by utilizing 3D design software, wherein the digital model comprises thread slot models, thread models and detailed characteristics of threads; dividing male and female dies by die designers according to the digital model, and designing the structure of the die; engraving various required thread textures by using a numerical control processing center; manufacturing a cavity, and performing texture engagement treatment on the cavity; assembling the cavity to the female die, and locking the cavity and the female die together by bolts; directly carrying out injecting molding on a plastic product with simulated threads by a die with the cavity. The method is easy to operate, has the advantages that adverse results caused by man-made reasons can be reduced and products are completely the same to realize seamless lap joint with opponent pieces, is strong in dimension stability, adhesive omission, more environmental-friendliness and low in manual and equipment cost.

Description

technical field [0001] The invention relates to the technical field of injection molding technology, in particular to a method for forming molds for automotive interior parts with the effect of sewing threads. Background technique [0002] In order to increase the interior division effect and enhance the visual effect of automotive interior parts, most of them will stick a layer of sewn PVC imitation leather or genuine leather on the surface of some plastic parts. The current process is as follows: [0003] Cutting + sewing + lamination: After purchasing the skin and returning to the factory, arrange personnel to cut it to the desired size and shape, and then sew it. Some of them will add a sewing line to the plastic part to increase the aesthetics of the plastic part. , After the completion, hand it over to the next engineering station, and use glue to bond the plastic parts and the sewn skin together. [0004] The above method has the following deficiencies: the technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29L31/58
Inventor 赖定群
Owner QUANXING TOOLING EQUIP NANJING
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