Method for realizing uniform heating and cooling of plastic injection mould

Abstract

The present invention provides one kind of method of heating and cooling plastic injecting mold. The method includes splitting each of the movable mold and the fixed mold into two parts, one inner part and one outer part, assembled together; making the split movable mold and the fixed mold possess the required profile, and machining water / air channels in the split movable mold and the fixed mold for both heating and cooling. The present invention has water / air channels for both heating and cooling in the same distance to the profile of the mold cavity, so that it has homogeneous heating and cooling and capacity of obtaining high quality plastic injecting formation product.

Description

technical field

[0001] The invention relates to a heating and cooling method for a plastic injection mold, and belongs to the technical field of plastic molding molds. Background technique

[0002] Plastic injection molds generally consist of a moving mold, a fixed mold, and a heating and cooling system. The design of heating and cooling systems plays a vital role in the production efficiency and quality of plastic products. The current heating and cooling systems of plastic injection molds generally use drilling holes on the movable and fixed molds, and use the drilled holes as water / air passages for heating or cooling. Due to the large distance from the surface of the water / air passages to the surface of the mold cavity , the distances vary greatly, and the heating and cooling waterways are often opened in the available space of the mold, resulting in very uneven heating and cooling of the plastic injection mold. Such a heating and cooling design makes the production eff...

Examples

Embodiment

[0011] The method principle of the present invention is shown in Figure 1. At the position where the cavity of the fixed mold is offset by a certain distance, the fixed mold is divided into an outer part 1 of the fixed mold and an inner part 2 of the fixed mold according to the shape of the mold surface, so that the fixed mold is assembled from these two parts. The heating and cooling profile 9 of the inner part of the fixed mold and the heating and cooling profile 10 of the outer part of the fixed mold are consistent with the profile shape of the mold cavity profile 8 of the inner part of the fixed mold. Similarly, the movable mold is divided into the outer part 4 of the movable mold and the inner part 3 of the movable mold according to the shape of the mold surface, so that the movable mold is assembled from these two parts. The heating and cooling profile 6 of the inner part of the movable mold and the heating and cooling profile 5 of the outer part of the movable mold are ...

technical field

[0001] The invention relates to a heating and cooling method for a plastic injection mold, and belongs to the technical field of plastic molding molds. Background technique

[0002] Plastic injection molds generally consist of a moving mold, a fixed mold, and a heating and cooling system. The design of heating and cooling systems plays a vital role in the production efficiency and quality of plastic products. The current heating and cooling systems of plastic injection molds generally use drilling holes on the movable and fixed molds, and use the drilled holes as water / air passages for heating or cooling. Due to the large distance from the surface of the water / air passages to the surface of the mold cavity , the distances vary greatly, and the heating and cooling waterways are often opened in the available space of the mold, resulting in very uneven heating and cooling of the plastic injection mold. Such a heating and cooling design makes the production eff...

Examples

Embodiment

[0011] The method principle of the present invention is shown in Figure 1. At the position where the cavity of the fixed mold is offset by a certain distance, the fixed mold is divided into an outer part 1 of the fixed mold and an inner part 2 of the fixed mold according to the shape of the mold surface, so that the fixed mold is assembled from these two parts. The heating and cooling profile 9 of the inner part of the fixed mold and the heating and cooling profile 10 of the outer part of the fixed mold are consistent with the profile shape of the mold cavity profile 8 of the inner part of the fixed mold. Similarly, the movable mold is divided into the outer part 4 of the movable mold and the inner part 3 of the movable mold according to the shape of the mold surface, so that the movable mold is assembled from these two parts. The heating and cooling profile 6 of the inner part of the movable mold and the heating and cooling profile 5 of the outer part of the movable mold are ...

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