Method for dredging nickel shell micropores of IMG female die vacuum compound die

Abstract

The invention relates to the technical field of automobile part manufacturing, and discloses a method for dredging nickel shell micropores of an IMG female die vacuum compound die. The method comprises the following steps that: after a plurality of products are continuously produced by using the IMG female die vacuum compound die, the IMG female die vacuum compound die is discharged from a machine, the die is opened, and an upper die is fixedly and stably placed in a vertical state; dry ice cleaning is performed on the surface of a nickel shell by using a dry ice machine; white gasoline is quickly and uniformly sprayed and applied to the surface of all dermatoglyph of a nickel cavity in a vaporific manner; compressed air is introduced into the cavity of the upper die through an air exhaust hole of the upper die; and a layer of soap water mist is sprayed on the leather grain surface of the nickel shell, then compressed air is introduced to start to blow soap bubbles, so as to visually verify whether the vacuum micropores are dredged or not, otherwise, the process returns to the step B) until all the vacuum micropores of the whole nickel cavity blow out the soap bubbles, namely all-pass dredging is realized. According to the method for dredging the nickel shell micropores of the IMG female die vacuum compound die, the nickel shell micropores of the IMG female die vacuum compound die can be dredged quickly, simply, visually and reliably.

Description

technical field [0001] The invention relates to the technical field of auto parts manufacturing, in particular to a method for dredging micropores of a nickel shell of an IMG female mold vacuum composite mold. Background technique [0002] In the production of car door panels, a special mold is usually applied: IMG female mold vacuum forming composite mold, wherein the cavity surface of the upper mold of the mold (commonly known as "nickel shell" in the industry) is made of -nickel material with a thickness of 4.0 to 5.0 mm, there are imitation leather textures with decorative patterns on the surface, because the cavity filling - a large number of resin balls - 3.8mm in diameter, rely on the pressure plate and the support head to seal and bond in the cavity and cannot be dismantled, there must be a gap between the balls Ventilation micro-gap, because the overall thickness of the upper mold exceeds 350mm, unless it is disassembled destructively, the nickel shell, the cavity o...

AI Technical Summary

Problems solved by technology

[0006] This method is time-consuming, labor-intensive and low-efficiency. The stubborn micropores cannot be unblocked at one time, and when a large amount of industrial alcohol is poured into the upper mold cavity for aging soaking and cleaning, the resin balls in the cavity will also be dissolved and glued. Impurities are more likely to flow to the nickel shell after dissolution, making micropores more prone to clogging

[0007] In addition, the above method needs to discharge and dry the alcohol liquid left in the cavity under inversion and purging, and then reinstall the mold. It is not until the product is tested on the machine that the micropores of the nickel shell are dredged. In addition, there are always many stubbornly blocked micropores that have not been dredged this time, resulting in poor adsorption of the product and repeated repairs after being off the machine many times. It is labor-intensive and time-consuming and the effect cannot be directly known. , cannot be fully dredged after a one-time repair

[0008] With the accumulation of production and use, the cavity of the female mold will become larger and more vacuum micropores of the female mold will be blocked. The existing dredging methods are difficult to effectively unblock, which has often caused the skin texture of the product after the compound production of the IMG female mold to become shallow- The skin texture is shallow and unclear, and waste and defective products are easy to appear in production

When the micropores of the nickel shell cannot be dredged, in order to ensure the production delivery and appearance quality, the craftsmen have to adjust the parameters or raise the lower model surface with non-woven fabrics to maintain continuous production, which leads to temporary shutdown of the machine time; and the vacuum micropores are blocked, and the adjustable and controllable range of process parameters has to be narrowed, the unstable factors of production have increased, and crises in delivery and quality have also occurred frequently