Precision plastic mold

A precision plastic and mold technology, applied in the field of mold manufacturing, can solve problems such as increasing maintenance costs, affecting production progress, and being prone to breakage, reducing injection molding costs, reducing scrap rates, and saving materials and costs.

Inactive Publication Date: 2017-03-08
HUANGSHI SANMU PLASTIC MOLD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Plastic molds for scientific and educational building blocks are prone to damage under recycling
Modern industrial production requires molds with high precision, long life, large output and fast production speed, which poses new challenges to the stability and durability of molds.
For molds made by traditional techniques, the mold base and core parts are completely integrated. Once damaged, production will be stopped for repair, delaying the construction period
In particular, the ejection system is

Method used

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, the mold insert of the present invention is provided with a casting cavity 1, and the casting cavity 1 is embedded with a casting core 2, and the casting core 2 is in interference fit with the casting cavity 1. Since the use environment of the casting cavity 1 is a high-temperature injection molding process, the tolerance of the interference fit of the casting core 2 needs to consider the expansion coefficient in a high-heat environment. In the solution of the present invention, the tolerance of the interference fit is set at 0.01 mm is the best.

[0016] The pouring core 2 also includes a pouring channel 21 and a pouring port 22 .

[0017] figure 2 It is a structural schematic diagram of the mold guide system of the present i...

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Abstract

The present invention discloses a precision plastic mold, which comprises a mold insert, wherein the mold insert is provided with a casting cavity, a casting core member is embedded in the casting cavity, the casting core member and the casting cavity form interference fit, the tolerance of the interference fit is 0.01 mm, and the casting core member comprises a casting channel and a casting port. According to the present invention, the precision plastic mold has the independent mold casting core member, the casting core member and the whole mold can be easily separated, and when the casting core member wears during the work process so as to affect the plastic molding, the casting core member can be easily replaced, such that the time and the labor are saved during the practical application, the material and the cost are saved, and the environmental protection advantage is provided; the cost of the mold using the guide system is slightly improved while the mold structure is easy to use, the molding production is achieved, and the product injection molding cost is reduced; and the stability and the safety of the mold after the use of the system are substantially improved, the molding precision of the produced plastic member is improved, the appearance is clean, the assembly coordination of the product is improved, and the rejection rate is substantially reduced.

Description

technical field [0001] The invention relates to the field of mold manufacturing, in particular to a precision plastic mold and a demoulding mechanism thereof. Background technique [0002] As an important process equipment in modern manufacturing industry, mold plays an important role in industrial production. Due to its fast forming speed and high precision, it is suitable for the production of complex parts and is widely used in various fields such as machinery, automobiles, light industry, and electronics. The technical level of injection mold is an important part of the level of manufacturing industry. Injection mold includes: cavity system, pouring system, temperature adjustment system, ejection system, guiding and positioning system, core pulling and oblique pin structure, etc. [0003] Plastic molds for scientific and educational building blocks are prone to damage under recycling. Modern industrial production requires molds with high precision, long life, large out...

Claims

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Application Information

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IPC IPC(8): B29C45/26
CPCB29C45/26B29C45/2606B29C45/2675
Inventor 罗威
Owner HUANGSHI SANMU PLASTIC MOLD
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