Double-layer flow-distribution injection mold
An injection mold and shunt technology, applied in the field of double-layer shunt injection molds, can solve the problems of different entry speeds, low efficiency, flow marks, etc., to avoid uneven reflection, improve efficiency, and save processes and costs. Effect
Active Publication Date: 2019-06-07
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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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
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[0032] In order to make the object, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] Please also see Figure 1-Figure 15 . The present invention provides a double-layer shunt injection mold, which is used to inject a plastic shell 100 with a bone position 200 (such as figure 1 shown) as an example to illustrate, such as figure 2 , image 3 and Figure 4 As shown, the double-layer shunting injection mold includes: a front mold 1 and a rear mold 2 fastened on the front mold 1, and the front mold 1 and the rear mold 2 are buckled to form a product cavity and bone position cavity; the double-layer shunt injection mold also includes a drainage ring 5, an air plug 6, ...
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The invention discloses a double-layer flow-distribution injection mold which comprises a front mold, a rear mold, a flow guiding ring, air plugs as well as a first flow distributor, a second distributor and a mounting frame, wherein the first flow distributor and the second distributor are buckled in sequence; the first flow distributor is buckled on the rear mold; flow guiding pipes are arrangedon both the first flow distributor and the second distributor, and penetrate through the rear mold; the flow guiding ring penetrates through the mounting frame and the second flow distributor in sequence, is arranged in the first flow distributor, and communicates with the first flow distributor and the second distributor; the air plugs penetrate through the mounting frame and the second flow distributor in sequence, extend into a first separator, and are capable of sliding in the penetrating direction, so that the flow guiding ring can be isolated from the first flow distributor or the second flow distributor; the double-layer flow distribution process of the first flow distributor and the second distributor can be achieved by moving the air plugs according to the time sequence; the injection molding of a rubber shell and reinforcing ribs can be completed in sequence; and no mold opening operation is needed during the injection molding process.
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...
Claims
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IPC IPC(8): B29C45/27
Inventor 王学敏曾军
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD