Molding die for porous starchy container

Abstract

The invention discloses a molding die for a porous starchy container. The molding die comprises a porous female die with air permeability and a porous male die with the air permeability, wherein a mold cavity is formed in the porous female die, the porous male die comprises an outward protruding forming part which convexly extends out of the bottom surface of the porous male die, and the porous male die is provided with at least one demolding air guide hole which penetrates through the porous male die and the outward protruding forming part; when the porous female die and the porous male die are combined, the outwards protruding forming part can be located in the die cavity, and the outer edge of the porous male die and the outer edge of the porous female die wrap a set of steel dies; eachsteel die comprises an upper steel die which is tightly wound on the outer edge of the porous male die; a plurality of transverse through holes are formed in the side edge of each upper steel die, and an air guide hole is further formed in the top of each upper steel die; each steel die further comprises a lower steel die which is tightly wound on the outer edge of the porous female die; and a plurality of transverse through holes are formed in the side edge of each lower steel die.

Description

technical field [0001] The invention relates to a molding die, in particular to a molding die for a porous starchy container. Background technique [0002] see Figure 1~Figure 4 As shown, a mold 100' is used to solidify and shape starch, including a male mold 20' and a female mold 10'. A finished container 30' will be formed between the male mold 20' and the female mold 10'. The female mold 10' has a mold cavity 11' approximately located at the center of the female mold 10', and the mold cavity 11' is usually connected with a plurality of demoulding air guide holes 12'. The male mold 20' usually has a convex forming portion 21' whose structural profile corresponds to the size of the mold cavity 11'. During manufacture, the starch dough is placed in the mold cavity 11', and then the starch dough is extruded by the convex forming part 21' of the male mold 20', and its shape is equal to the mold cavity 11' and the convex forming part 21', then use the heating device to heat...

AI Technical Summary

Problems solved by technology

[0004] In the production process of starchy foaming materials, because the starchy foaming materials will generate gas during the foaming stage, and the volume expansion during foaming may block the vent holes of the mold, so that the gas in the mold will Can't get out through the vent

The mold itself is a non-porous material, so it cannot discharge any gas. Therefore, the foaming effect of the starchy foaming material is not good, and uneven bubbles will be generated. At the same time, the pressure in the mold will be too high to cause a shock. danger

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