Needle valve type cold channel silica gel single-KEY mould structure

Abstract

The invention relates to a needle valve type cold channel silica gel single-KEY mould structure for forming a single-key product, comprising a mould blank, a front mould and a rear mould, wherein the front mould is arranged on the mould blank; the rear mould is opposite to the front mould and arranged on the mould blank; a cavity of a formed product is arranged between the front mould and the rear mould; the needle valve type cold channel silica gel single-KEY mould structure also comprises a guide pillar used for positioning and a side lock so as to further solve the problem of positioning of the traditional mould and further effectively prevent the action deviation of a mould in the processing and forming process; and a needle valve type material injection head for liquid injection and forming is arranged above the middle of the cavity. The invention has the advantages of raw material saving, great easiness of cleaning, short forming time and high efficiency.

Description

technical field [0001] The invention relates to a liquid needle valve type cold channel silicone single KEY mold structure. Background technique [0002] Molds for existing shaped products such as image 3 As shown, it is generally the way of glue feeding through the large nozzle. The glue feeding mold with large water inlet has the following disadvantages: (1). The four glue feeding positions of a single KEY are not balanced due to the glue feeding, which causes the size of the single KEY to be unstable. (2).Because of the large nozzle way of glue feeding, the runner diverter plate is diverted from the middle. Affected by the flow speed and time of the raw material, there is no 2 pieces on the most edge, 4 pieces, and 3 pieces of single KEY running material balance , which also affects the dimensional stability of a single KEY. The dimensional instability of a single KEY directly causes uneven load peak force and a low life span of a single KEY. (3). The flash is too larg...

AI Technical Summary

Problems solved by technology

The glue feeding mold with large water inlet has the following disadvantages: (1). The four glue feeding positions of a single KEY are not balanced due to the glue feeding, which causes the single KEY size to be unstable.

(2).Because of the large nozzle way of glue feeding, the runner diverter plate is diverted from the middle. Affected by the flow speed and time of the raw material, there is no 2 pieces on the most edge, 4 pieces, and 3 pieces of single KEY running material balance , which also affects the dimensional stability of a single KEY. The dimensional instability of a single KEY directly causes uneven peak force and low life span of a single KEY.

(3). The flash is too large, the waste of raw materials is large, and the cost of manual cleaning of the flash is high

In addition, the existing mold generally adopts a flat mold structure, the thickness of the mold is too thin, and the mold is easily deformed during the heating and forming process, resulting in single KEY eccentricity, that is, with the single KEY as the center point, the size of the left and right sides is unbalanced, resulting in unbalanced load , low life expectancy

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