Antistatic packing box and mold and manufacturing method thereof

Abstract

The invention discloses a smooth and uniform packing box with high strength and good rigidity used for carrying and transporting liquid crystal glass and a mold for manufacturing the packing box and a manufacturing method thereof. The packing box comprises box walls in a truss structure and a box bottom; the truss structure is composed of three main flitch plates vertical to the box bottom surface and arranged at intervals mutually; auxiliary flitch plates are further arranged between adjacent main flitch plates, wherein angles of 30-90 degrees are formed between the auxiliary flitch plates and the main flitch plates, the auxiliary flitch plates are vertical to the box bottom surface, and one of the auxiliary flitch plates is connected with the main flitch plates; and unique externally projected circular ring with glue injection port print is reserved in the center of the outer surface of the box bottom. Just one glue injection port is arranged on a moving die in the mold, and the thimbles of the mold are respectively round and flat; and in the method, plastic mixed material with high antistatic effect is adopted and injected in the die cavity of the mold through the glue injection port with a diameter of 19.5mm. The antistatic packing box is pressure-proof, vibration-proof and high in shock resistance capability; and the box is smooth in shape, uniform in thickness and low in rejection ratio; and the antistatic effect is high.

Description

Technical field [0001] The invention relates to a packaging box for shipping liquid crystal glass and a mold and manufacturing method thereof, in particular to a packaging box for shipping liquid crystal glass with strong antistatic and vibration resistance, and a mold and manufacturing method thereof. Background technique [0002] At present, with the vigorous development of various liquid crystal displays, the market demand for liquid crystal glass has greatly increased, so the transportation volume of liquid crystal glass has increased accordingly, because liquid crystal glass is a kind of more delicate and expensive that is afraid of scratches, vibrations and high prices. Therefore, the packaging box used for transportation has higher requirements. For example, the packaging box must have higher mechanical strength, greater rigidity and better flatness, so that it can be avoided in It is subject to impact, vibration and mutual friction during transportation and circulation. ...

AI Technical Summary

Problems solved by technology

[0004] 1) The side wall of the packaging box is a single-layer plastic wall, and the wall thickness is thin and the mechanical strength is poor;

[0005] 2) The mold used in the injection molding packaging box adopts the method of small nozzle dispersed plastic inlet to inject the plastic raw material into the cavity. Since the molten plastic raw material is injected into each plastic inlet, the pressure is difficult to achieve balance, even if the largest injection is used. Molding pressure cannot make the molten plastic material fill the cavity, so it is easy to cause uneven thickness of the packaging box product or become a waste product due to local lack of glue

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