Two-color mold with inner rotating core

Abstract

The invention discloses a two-color mold with an inner rotating core. The two-color mold comprises a fixed mold (01), a movable mold (02), a hard glue cavity (1), a soft glue cavity (2), the rotating core (3), a rotating mechanism (4) and an ejection mechanism (5). With the adoption of the technical scheme, the hard glue cavity and the soft glue cavity are formed in the fixed mold, the rotating core, the rotating mechanism and the ejection mechanism are arranged at the movable mold, and a core A and a core B of which the structures and shapes are the same as each other are arranged at two ends of the rotating core, respectively. An operating method of the two-color mold comprises the following steps: performing injection molding on the core A to form a hard glue semi-finished product in the hard glue cavity, wherein the core B is not subjected to injection molding in the soft glue cavity in a temporary mode; ejecting the rotating core out from the tail top, rotating 180 degrees by virtue of the rotating mechanism, and clamping the mold again; allowing the core A to carry the hard glue semi-finished product to transfer into the soft glue cavity, performing soft glue compound injection molding to form a hard and soft glue compound product, transferring the core B into the hard glue cavity to form a hard glue semi-finished product by virtue of injection molding, opening the mold again, and ejecting the hard and soft glue compound product out of the core A by virtue of the ejection mechanism; and ejecting and rotating the rotating core, and exchanging the cavities of the core A and the core B. Therefore, two-color products can be produced by utilizing a double-cylinder machine, and the aims of reducing the cost and improving the efficiency are achieved.

Description

technical field [0001] The invention relates to a double-material injection mold, in particular to a double-color mold with an inner rotating core used for double-material composite injection molding of double-material injection products. Background technique [0002] Double-material injection mold is an injection mold that molds hard plastic and soft plastic into double-material composite injection products through double-material injection molding machine. Usually, double-material injection mold is also called two-color mold, and double-material composite injection molding is called two-color molding. Double-material composite injection molding products are called two-color products; double-material injection molding machines are referred to as two-color machines for short, and are injection molding machines equipped with two injection plastic cylinders of hard plastic and soft plastic, and are equipped with a rotating movable workbench; the existing two-color mold adopts ...

AI Technical Summary

Problems solved by technology

[0002] Double-material injection mold is an injection mold that molds hard plastic and soft plastic into double-material composite injection products through double-material injection molding machine. Usually, double-material injection mold is also called two-color mold, and double-material composite injection molding is called two-color molding. Double-material composite injection molding products are called two-color products; double-material injection molding machines are referred to as two-color machines for short, and are injection molding machines equipped with two injection plastic cylinders of hard plastic and soft plastic, and are equipped with a rotating movable workbench; the existing two-color mold adopts Two-color machine injection molding two-color products, when applied, the fixed mold of the two-color mold is installed on the fixed workbench of the two-color machine, and the movable mold of the two-color mold is fixed on the rotating movable workbench of the two-color machine. When working, the rotating movable workbench carries The entire movable mold rotates 180° for double-material conversion injection molding; because the two-component machine is expensive and the operating cost is high, and the rotating movable table carries the entire movable mold, the rotation speed is slow and the efficiency is low. Therefore, the existing technology has problems of high cost and low efficiency. Problems and deficiencies

Images