Storage battery outer shell two-point glue injection hot runner structure, injection molding method and injection molding machine

Abstract

The invention provides a storage battery outer shell two-point type glue injection hot runner structure, and relates to the technical field of plastic injection molding, the technical problem of how to enable the storage battery outer shell to be subjected to balance injection molding is solved. The structure comprises two hot nozzles, a flow-dividing plate, a driving mechanism and an injection nozzle for injecting glue, the two hot nozzles are arranged in a front-and-back mode relative to the center position of the top surface of the storage battery shell, and the lower ends of the two hot nozzles are positioned on the diagonal lines of the top surface of the storage battery shell; the lower end of the flow-dividing plate is connected and communicates with the upper ends of the two hot nozzles; the driving mechanism is connected with the upper end of the flow-dividing plate, is positioned on the two sides of the injection nozzle, and synchronously drives the two hot nozzles to be opened or closed; the injection nozzle is positioned in the center of the upper end of the flow-dividing plate, is connected with the flow-dividing plate and communicates with the flow-dividing plate, andthe injection nozzle is in equal-distance communication with the two hot nozzles through the flow-dividing plate; and the injection nozzle is used for injecting the colloid into the flow-dividing plate and simultaneously flows out of the two hot nozzles at the same time to complete the balanced glue discharging.

Description

technical field [0001] The invention relates to the technical field of plastic injection molding, in particular to a two-point glue-injecting hot runner structure for a storage battery casing, an injection molding method and an injection molding machine. Background technique [0002] For the injection molding of the battery outer casing, the traditional three-plate mold cold runner injection molding structure or the seven-point hot runner injection molding structure are usually used. [0003] Among them, the disadvantages of the three-plate mold cold runner injection molding structure are serious waste of plastic raw materials, long molding cycle, obvious color difference in product appearance and unfavorable for automatic production. [0004] The disadvantage of the seven-point hot runner injection molding structure is that the mold opening cost is relatively high in the early stage, because the mold opening cost of the hot runner industry is usually billed by points. For ...

AI Technical Summary

Problems solved by technology

[0003] Among them, the disadvantages of the three-plate mold cold runner injection molding structure are serious waste of plastic raw materials, long molding cycle, obvious color difference in product appearance and unfavorable for automatic production

[0004] The defect of the seven-point hot runner injection molding structure is that the initial mold opening cost is relatively large, because the mold opening cost of the hot runner industry is usually billed by points

In the prior art, a time controller is generally used to control the glue feeding amount of each hot nozzle, but it is still easy to reproduce the difference in the glue feeding amount of each hot nozzle, and it will also bring about complex problems in the adjustment of the injection molding process

As a result, there will be deviations in the size of the ribs, which will lead to product assembly interference

Due to the unbalanced glue injection at seven points, it will also cause problems such as core eccentricity, mold expansion, lack of glue at ribs, and offset of ribs, which will lead to unqualified products

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