Pressure cast metal hand mold and preparation method thereof

Abstract

The invention discloses a pressure cast metal hand mold and a preparation method thereof. The pressure cast metal hand mold comprises a hand mold body and a fixing base. The hand mold body comprises a palm part and a finger part. The palm part and the finger part are designed by simulating the human hand structure. The hand mold is divided into two halves in the longitudinal direction of the hand mold, one half is a palm face part, the other half is a hand back face part, and the palm face part and the hand back face part form the complete hand mold after being buckled oppositely and fixed. The pressure cast metal hand mold has the following benefits that a two-half structure is adopted, the wall thickness of the whole mold is uniform, the thinnest wall can reach 0.3 mm, the surface smoothness and the dimensional precision are high, the heat exchange speed is high, the hand mold can be produced on a large scale, and the production efficiency is high.

Description

technical field [0001] The invention relates to a mold for glove production, in particular to a pressure casting metal hand mold. The invention also relates to a method for preparing a pressure casting metal hand mold. Background technique [0002] In the production process of gloves such as latex, nitrile, PU or PVC, it is necessary to use hand molds for dipping and other processes. The quality of hand molds is directly related to the quality of gloves. Most of the existing hand models are integral metal hand models of gravity casting, and there are some defects in the gravity casting process, such as: [0003] 1) It is difficult to uniformly control the wall thickness of the hand mold, resulting in different surface temperatures of the hand mold, which affects the stability and reliability of the glove dipping. [0004] 2) Molding processes such as resin sand and coated sand are prone to surface and internal quality defects. The surface roughness of the hand mold is high...

AI Technical Summary

Problems solved by technology

[0003] 1) It is difficult to control the uniform wall thickness of the hand mold, resulting in different surface temperatures of the hand mold, which affects the stability and reliability of glove dipping

[0004] 2) Molding processes such as resin sand and coated sand are prone to surface and internal quality defects. The surface roughness of the hand mold is high, the crystal structure is loose and easy to produce pores, sand inclusions, cracks, etc., resulting in many defects in the hand mold

[0005] 3) After the hand mold is formed, it is difficult to completely remove the internal impurities, and the weight of the hand mold increases, which seriously affects the heat exchange and impregnation production process

[0006] 4) Poor surface quality, many internal defects, low pass rate, high grinding rate, and high labor intensity

[0008] 6) Poor interchangeability, unable to accurately guarantee the levelness, verticality and actual requirements of impregnation of the hand mold after replacement

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