Lithium-battery mold and low-pressure injection molding method

Abstract

The invention discloses a lithium-battery mold and a low-pressure injection molding method. The lithium-battery mold mainly comprises a front mold, a rear mold, an ejection system, a feed gate and a runner, wherein two mold cavities are respectively arranged in the front mold and the rear mold; the ejection mechanism is arranged in the mold cavity of the rear mold; the front end of the die cavity in the rear mold is respectively provided with a slide cavity and a slider; the front part of the die cavity in the front mold is provided with a buckle table which can be buckled on the outer wall of the slider; and the middle part of the front mold and the rear mold is provided with the feed gate and the runner. The low-pressure injection molding method comprises the following steps: sheathing an ABS engineering plastic molded part on the lithium battery and the protective plate connecting component, and putting into the mold cavity of the rear mold; closing the mold, injecting plastics, and injecting a resin material into the gaps among the components in the mold cavity; and opening the mold. The invention has the advantages of simple structure and convenient use, and can enhance the hardness and the smoothness of the battery surface as well as the battery capacity.

Description

technical field [0001] The invention relates to an injection mold for a lithium battery of a mobile phone, in particular to a low-voltage injection mold for a lithium battery and a low-pressure injection molding method. Background technique [0002] At present, the production method of mobile phone lithium battery is to put the battery and circuit protection board into the mold and directly use low-injection molding materials to form it directly. Under the action of injection molding pressure, the volume of the battery itself becomes smaller, resulting in a decrease in battery capacity. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings in the above-mentioned prior art and provide a new type of lithium battery low-voltage injection mold with simple structure, convenient use, high surface hardness, good flatness, and improved battery capacity. And low-pressure injection molding method. [0004] The present invention is ...

AI Technical Summary

Problems solved by technology

[0002] At present, the production method of mobile phone lithium battery is to put the battery and circuit protection board into the mold and directly use low-injection molding materials to form it directly. Under the action of injection molding pressure, the volume of the battery itself becomes smaller, resulting in a decrease in battery capacity

Images