White material mold insert

Abstract

The invention discloses a white material mold insert, which comprises a mold insert body and a fluid flow passage; the fluid flow passage is arranged in the mold insert body and is of an L shape; an outlet of the fluid flow passage is communicated with a branch flow passage on a splitter plate when the mold insert is installed in the splitter plate; an inner corner of the fluid flow passage is configured as a right angle; an outer corner of the fluid flow passage adopts a bevel edge; and the maximum width of the corner of the fluid flow passage is equal to the width of the straight-line segment of the fluid flow passage. According to the invention, the maximum width of the corner of the fluid flow passage is equal to the width of the straight-line segment of the fluid flow passage, in this way no residual plastic solution exists in the fluid flow passage during the injection molding, so that flaws such as black points and the like produced in the secondary injection molding by the white material mold insert can be avoided; and the white material mold insert provided by the invention is simple in structure and is practical.

Description

technical field [0001] The invention relates to a white material insert, in particular to a white material insert used in an injection mold specially used for injection molding white or transparent products, and belongs to the technical field of injection mold components. Background technique [0002] Injection molds, often used in modern industrial production, are often used to inject liquid plastic solutions into the cavity of injection molds; common inserts, such as attached figure 1 As shown, it includes an insert body 2 and a fluid channel 4; the fluid channel 4 is arranged inside the insert body 2 in an L shape; when the insert is installed in the manifold 1, the outlet of the fluid channel 4 and the manifold The shunt channel 3 on 1 communicates; the inner corner 5 of the fluid channel 4 is arranged at right angles; the outer corner 6 of the fluid channel 4 is roughly rounded; the maximum width ratio of the fluid channel 4 at the corner of this structure is The width...

AI Technical Summary

Problems solved by technology

When the injection mold is used for the second time, the deposited plastic will form black spots and be brought out with the plastic solution, forming black spots and other defects on the product, resulting in defective products

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