Multi-melt multi-injection molding mold

Abstract

The invention discloses a multi-melt multi-injection molding mold which is suitable for effectively completing sequential injection of polymer melts without a double colored plastic injection machine. A primary injection runner, a secondary injection runner, a secondary injection system positioning plate and a mold cavity assembly which are located on the sides of a fixed mold and a movable mold are combined to form the multi-melt multi-injection molding mold. The multi-melt multi-injection molding mold accurately completes the sequential injection process of the polymer melts without the double colored plastic injection machine. Meanwhile, the mold structure is simplified, the equipment cost of the double colored plastic injection machine is omitted, and therefore the purposes of simplifying the process and reducing cost are achieved.

Description

technical field [0001] The invention relates to an injection molding mold, in particular to a multi-melt multi-injection molding mold, which belongs to the technical field of injection molding molds. Background technique [0002] The existing sequential injection process of polymer melt needs to be completed with the help of a special two-color injection molding machine equipped with a complex mold structure. Usually, the purchase cost of a two-color injection molding machine is relatively high, and its mold structure is also relatively complicated, such as patent number CN200820120156. 3 and CN201210126036 published "clearing the mold rotating device of two-color injection molding machine" and "a structure and process correction of a two-color injection molding machine". For some injection molds with small batches, such as laboratory research, if you do it in this way, you not only need to buy a two-color injection molding machine, but also the design, manufacture, and proc...

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Problems solved by technology

[0002] The existing sequential injection process of polymer melt needs to be completed with the help of a special two-color injection molding machine equipped with a complex mold structure. Usually, the purchase cost of a two-color injection molding machine is relatively high, and its mold structure is also relatively complicated, such as patent number CN200820120156. 3 and CN201210126036 published "clearing the mold rotation device of two-color injection molding machine" and "a structure and process correction of two-color injection molding machine"

For some injection molds with small batches, such as laboratory research, if you do it in this way, you not only need to buy a two-color injection molding machine, but also the design, manufacture, and processing of the mold structure are difficult, and the maintenance requirements are high, resulting in higher costs and resulting in big waste

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