Water needle device for water-assisted injection molding production

A water-jet and water-assisted technology, applied in the field of production equipment for water-assisted molding production, can solve problems such as easy formation of fingers and affect the mechanical properties of products, and achieve the effect of avoiding finger effects

Inactive Publication Date: 2013-01-02
NINGBO SUNNY MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a water injection device used in water-assisted molding production to solve the problem that fingers are easily formed in the previous processing process and affect the mechanical properties of the product

Method used

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  • Water needle device for water-assisted injection molding production
  • Water needle device for water-assisted injection molding production
  • Water needle device for water-assisted injection molding production

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods, as Figure 1 to Figure 4 As shown, a water needle device applied to water-assisted molding production includes a water needle body 3, a bullet 5 is arranged at the front end of the water needle body 3, a water channel 6 is arranged inside the water needle body 3, and the water inlet of the water channel 6 is A water tank 2 is provided, an air channel 10 is provided in the middle of the water needle body 3 , and a valve 1 is provided at the air inlet of the air channel 10 . The water needle body 3 is provided with a positioning step 9, which can fix the water needle body 3 in the casing, and is embedded in the body by the slider a7 and the slider b8, which is not easy for the water needle body 3. Displacement occurs within the enclosure.

[0020] Such as Figure 4 As shown, as a preference, there are mu...

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PUM

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Abstract

The invention discloses a water needle device for water-assisted injection molding production. The water needle device comprises a water needle body, wherein an elastic head device is arranged at the front end of the water needle body, and a water channel is arranged in the water needle body; a water groove is arranged at a water inlet of the water channel; an air channel is arranged in the middle of the water needle body; and a valve is arranged at an air inlet of the air channel. The water needle device provided by the invention has the beneficial effects that the water channel and the air channel are arranged in the water needle body, so that a water-assisted injection molding technology has the advantage of water-assistant injection molding, besides the advantage of an air-assisted formation technology, thus, a finger-type effect caused via a plastic component which is large in volume and thinner in wall and is manufactured via the water-assisted injection molding technology can be effectively avoided.

Description

technical field [0001] The invention relates to a production equipment used in water-assisted molding production, in particular to a water injection device used in water-assisted molding production. Background technique [0002] The water-assisted injection molding process is a new type of plastic injection molding technology newly developed on the basis of gas-assisted injection molding. pressure. Because this new technology enables better flexibility and freedom in product design and manufacturing, such as light weight, relatively low cost, and short molding cycle, this technology has attracted widespread attention. [0003] Water-assisted injection molding is composed of five basic steps: from injecting melt into the mold cavity, then injecting water and replacing the material core; maintaining the water pressure in the pressure-holding section; releasing the pressure and draining the water, and finally realizing demoulding. The key technology of water-assisted injectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/17B29C45/76
Inventor 罗谷平
Owner NINGBO SUNNY MOLD
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