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Manufacturing method of injection molded part and injection molded part

A manufacturing method and technology for injection molded parts, which can be used in coating and other directions to solve the problems of overflowing glue, flushing of embedded nuts, and low tensile strength and torsional strength of embedded nuts.

Inactive Publication Date: 2018-05-08
HONG FU TAI PRECISION ELECTRONICS (YANTAI) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, the embedded nut is generally embedded in the injection molded part by hot melting, but the tensile strength and torsional strength of the embedded nut in the injection molded part obtained by this method are relatively low
In the prior art, the embedded nut is embedded into the injection molded part by injection molding, but there is usually a phenomenon of glue overflow, and there is also the problem that the embedded nut is washed up during the injection molding process.

Method used

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  • Manufacturing method of injection molded part and injection molded part
  • Manufacturing method of injection molded part and injection molded part
  • Manufacturing method of injection molded part and injection molded part

Examples

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Embodiment Construction

[0053] Please refer to Figure 1~4 , a preferred embodiment of the present invention provides a method for manufacturing an injection molded part 100, which includes the following steps:

[0054] Step S1, see Figure 1~2 , providing an injection mold 200 .

[0055] The injection mold 200 includes an upper mold 201 and a lower mold 202 . The upper mold 201 is provided with a plurality of gates 2011 and a first cavity 2012 . The lower mold 202 is provided with at least one positioning column 2021 and at least one second cavity 2022 . Each second mold cavity 2022 is disposed around a positioning column 2021 . The second mold cavity 2022 is substantially an annular groove.

[0056] The second mold cavity 2022 has a bottom surface 2023 and a side surface 2024 vertically connected to the bottom surface 2023 and opposite to the positioning post 2021 .

[0057] Step S2, see further image 3 , at least one inner nut 10 is provided.

[0058] The embedded nut 10 includes a body 1...

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Abstract

A manufacturing method of an injection molded part comprises the following steps that an injection mold is provided and comprises an upper mold and a lower mold, the upper mold is provided with a first mold hole, the lower mold is provided with at least one locating column and at least one second mold hole, each second mold hole is arranged around the corresponding locating column, and each secondmold hole is provided with a bottom face; at least one embedded nut is provided, and each embedded nut comprises a body, a locating cap arranged at one end of the body and a through hole penetratingthe body and the locating cap; each embedded nut is arranged in the corresponding second mold hole, the locating columns of the lower mold are arranged in the through holes of the embedded nuts in a penetrating manner, and the locating caps of the embedded nuts abut against the bottom faces; and plastic is injected into the injection mold so as to form plastic parts combined to the embedded nuts.In addition, the invention provides the injection molded part.

Description

technical field [0001] The invention relates to a method for manufacturing an injection molded part and the injection molded part. Background technique [0002] Injection molded parts are widely used in various devices because of their excellent characteristics such as light weight, insulation, low cost, and easy molding. In order to facilitate the fixing of injection molded parts and other components, the injection molded parts are generally fixed by embedding embedded nuts in the injection molded parts through the cooperation of bolts and nuts. [0003] In the prior art, the embedded nut is generally embedded into the injection molded part by hot melting, but the tensile strength and torsional strength of the embedded nut in the injection molded part obtained by this method are relatively low. In the prior art, the embedded nut is embedded into the injection molded part by injection molding. However, there is usually a phenomenon of glue overflow, and there is also the pr...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29C45/26B29C45/37
CPCB29C45/14065B29C45/2602B29C45/37B29C2045/14122
Inventor 穆永进陈志强付保林其生郭明昌
Owner HONG FU TAI PRECISION ELECTRONICS (YANTAI) CO LTD
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