Double-color injection-molding die with active spacing block and preparation method thereof

Abstract

The invention relates to a double-color injection moulding mould with a movable separator and a method for preparing the same. Compared with two forms of convex mould translation and convex mould rotation of the prior double-color injection moulding mould, the double-color injection moulding mould is a single-cavity double-injection mould and comprises a convex mould and a concave mould. The moulding surface of the concave mould and the moulding surface of the convex mould form an injection moulding cavity; the convex mould comprises a first convex mould and a second convex mould between which a gap exists; and the gap is provided with a movable separating slice inside, and the movable separating slice extends into the injection moulding cavity and divides the injection moulding cavity into a first injection moulding cavity and a second injection moulding cavity which are not communicated. The mould has the advantages of simple structure, small volume, small ground occupying range, small investment, low energy consumption and high injection moulding efficiency.

Description

1. Technical field [0001] The invention relates to a two-color injection mold, in particular to a two-color injection mold with a movable spacer. 2. Background technology [0002] The traditional two-color injection mold, also known as multi-color mold, multi-material injection mold has two forms of "punch translation" and "punch rotation". [0003] "Punch translation" mold, which has a first concave mold, a second concave mold two concave molds and a punch. The first concave mold, the second concave mold, the first material barrel and the second material barrel are arranged on the fixed plate of the injection molding machine. The punch is set on the injection motorized plate. The cavity formed by the profile of the first concave die and the profile of the punch is only a part of the finished product. Its injection molding process: when the first barrel that communicates with the cavity is injected, the punch and the first concave die are closed to complete the injection ...

AI Technical Summary

Problems solved by technology

[0006] The common disadvantages of the above two two-color molds are that there are a large number of punches and dies, a large amount of investment, and the development of the mold is relatively complicated. At the same time, the injection molding machine is required to have a large working space, and the working process is cumbersome. Among them, "convex The mold in the mold rotation mode needs to rotate during operation, which reduces the injection molding efficiency

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