Double-color injection molding knob cover, injection molding die and injection molding technology thereof

A technology of two-color injection molding and knobs, which is applied to household appliances, other household appliances, gears, etc., can solve the problems of cumbersome manufacturing process, high cost, fading, etc., and achieve the effect of simple manufacturing process, low cost and good production effect

Inactive Publication Date: 2013-09-25
扬州吉山津田光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the knob cover is set on the knob and needs to be used frequently, in this way, problems such as numbers or scales falling off or fading may occur during long-term use
Moreover, this manufacturing process is more cumbersome and costly.

Method used

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  • Double-color injection molding knob cover, injection molding die and injection molding technology thereof
  • Double-color injection molding knob cover, injection molding die and injection molding technology thereof
  • Double-color injection molding knob cover, injection molding die and injection molding technology thereof

Examples

Experimental program
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Embodiment 2

[0026] Embodiment 2: An injection mold for preparing the two-color injection knob cover of the above embodiment 1. The injection mold includes an inner mold of the knob cover and an outer mold of the knob cover. The inner mold of the knob cover is provided with a digital punch And a knob cover mold, the knob cover inner layer mold is provided with an inner layer mold injection runner, the knob cover inner layer mold is used for injection molding the inner layer 1 of the knob cover; the knob cover outer layer mold is The upper half of the inner mold of the knob cover is suitable, and the corresponding position of the digital punch on the outer mold of the knob cover is provided with corresponding hollow parts; the outer mold of the knob cover is provided with an outer mold The glue runner, the outer layer mold of the knob cover is used for injection molding the outer layer 2 on the inner layer 1 of the knob cover.

[0027] The operation steps of the injection molding process in th...

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PUM

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Abstract

The invention discloses a double-color injection molding knob cover, an injection molding die and an injection molding technology thereof. The double-color injection molding knob cover comprises an inner layer and an outer layer, wherein the inner layer is in a knob cover type; a circle of protruded characters are uniformly arranged on the outer side wall of the inner layer; the outer layer wraps the upper half part of the inner layer and exposes the characters; the outer layer and the inner layer are subjected to injection molding to form an integrated structure. By the mode, the knob cover and numbers or scales on the surface of the knob cover can be formed at one time through injection molding; a phenomenon of falling off or color fading of the numbers or the scales which are used for a long time is avoided; the manufacturing technology is simple; the cost is low.

Description

Technical field [0001] The invention relates to the technical field of injection molding, in particular to a two-color injection knob cover, an injection mold and an injection process thereof. Background technique [0002] Injection molding is a process in which thermoplastics or thermosetting materials are made into various shapes of plastic products using plastic molding molds. The products we use every day are injection molded. However, some plastic products need to be marked with scales or numbers on the knob cover due to functional requirements, such as the knob cover. In the prior art, the knob cover is generally injection-molded and then engraved on the part that needs to be marked. Add numbers or scales, or spray numbers or scales on the surface of the knob cover. However, because the knob cover is put on the knob, it needs to be used frequently. In this way, the number or scale will fall off or fade during long-term use. Moreover, this manufacturing process is cumbers...

Claims

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Application Information

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IPC IPC(8): B29D15/00B29C45/14B29C45/26
Inventor 李同裕
Owner 扬州吉山津田光电科技有限公司
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