A double-layer split injection mold

Abstract

The invention discloses a double-layer shunt injection mold, which includes a front mold, a back mold, a drainage ring, an air plug, and a first shunt, a second shunt and a mounting frame that are buckled in sequence; the first shunt is buckled On the back mold; the first shunt and the second shunt are provided with drainage tubes, and the drainage tubes pass through the back mold; the drainage ring passes through the mounting bracket and the back mold in turn. The second flow divider is placed in the first flow divider, and the drainage ring is respectively communicated with the first flow divider and the second flow divider; the air plug passes through the mounting frame and the second flow divider in turn. the second flow divider, and extend into the first flow divider; the air plug can slide along the through direction to isolate the drainage ring from the first flow divider or the second flow divider, The air plug is moved in sequence to realize the double-layer shunting of the first flow divider and the second flow divider, and the injection molding of the plastic shell and the bone position is completed successively, and the injection molding process does not need to open a mold.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a double-layer split flow injection mold. Background technique [0002] The plastic shell of the TV is injection-molded using an injection mold, and if figure 1 As shown, the injection molding bone 200 is required on the plastic shell 100 of the TV set. In the prior art, the injection mold only has a single manifold hot runner system. Injection molding with bone position 200; two injection moldings lead to: different entry speeds at the outlet, resulting in flow marks; injection molding with spray-free materials will reverse the effect pigments, resulting in uneven reflection; two sets of front mold hot runner systems are required , The mold opening cost is high and the efficiency is low. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The technical problem to be solved by the present invention is to prov...

AI Technical Summary

Problems solved by technology

[0002] The plastic shell of the TV is injection-molded using an injection mold, and if figure 1 As shown, the injection molded bone 200 is required on the plastic case 100 of the TV set. In the prior art, the injection mold only has a single manifold hot runner system. Injection molding with bone position 200; two injection moldings lead to: the inlet speed of the outlet is different, resulting in flow marks; injection molding with spray-free materials will reverse the effect pigments, resulting in uneven reflection; two sets of front mold hot runner systems are required , high mold cost and low efficiency

Images