Thermoforming mold cooling process and thermoforming mold thereof

Abstract

The invention provides a thermoforming mold cooling process and a thermoforming mold thereof. The thermoforming mold cooling process is a water direct cooling process, and comprises the following steps that (1) a water channel is arranged in a mold block, and cooling water is introduced; (2) small holes which communicate with the water channel are uniformly distributed in the surface of the mold block, and the cooling water is sprayed out of the small holes in a water flow or water mist mode; and (3) a water passing groove is distributed on the surface of the mold block, and the cooling water flows out of the mold through the water passing groove. By applying the cooling process to the thermoforming mold, the parts can be directly cooled, the processing difficulty of the mold is reduced, and the cooling efficiency is improved.

Description

technical field [0001] The invention relates to a thermoforming die cooling process and the thermoforming die, which belong to the field of sheet metal hot stamping forming processing. Background technique [0002] At present, the high-strength steel thermoforming mold generally adopts the production process of passing water inside the forming block and cooling inside the mold. The characteristic of this process is to use water as the cooling medium, but water does not directly participate in the quenching and cooling process of the parts. The surface of the forming block is closely attached to the surface of the part through the stamping process, and the heat of the part is transferred to the forming block during the process, and then through cooling The flow of water carries away the transferred heat. [0003] Since the existing thermoforming mold technology relies on the flow of cooling water in the water channel to take away the transferred heat, the layout requirements...

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Problems solved by technology

[0007] The existing thermoforming mold process is indirect cooling, and the molding block material and performance requirements of the mold are relatively high. Materials with good thermal conductivity, good thermal fatigue resistance, good thermal shock toughness, high hardness and wear resistance are required. As a result, the price of general high-strength steel thermoforming molds is relatively high, and the cost of steel blocks has always occupied a relatively high proportion of the cost of thermoforming molds

[0008] Since the existing thermoforming mold cannot have water leakage during the production process

Therefore, during the design and manufacture of the mold, a lot of sealing elements and thread glue, special processing and assembly methods are used to realize the sealing of the waterway, which greatly increases the manufacturing cost and maintenance cost of the mold

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