Mould with multiple glue injection ports

Abstract

The invention relates to a mold with multiple glue injection ports, which comprises a front mold and a rear mold, a plurality of cavities for molding a plurality of products are arranged between the front mold and the rear mold, the front mold is provided with a glue inlet nozzle, the front mold is provided with a shunting cavity communicated with the glue inlet nozzle, and the shunting cavity is provided with a shunting valve and a heat preservation device. The flow dividing valves are in one-to-one correspondence with the cavities and enable the flow dividing cavities to be communicated with the middles of the cavities, and the heat preservation device conducts heat preservation and heating on materials in the flow dividing cavities. By adopting the scheme, the invention provides the multi-glue-injection-port mold which reduces material waste, improves the forming efficiency and reduces the design difficulty.

Description

technical field [0001] The invention relates to the field of molds, in particular to a mold with multiple injection ports. Background technique [0002] Molds are various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting, forging, smelting, stamping and other methods to obtain the required products. Among them, the plastic mold is a mold in which the molten material is injected into the mold from the nozzle, and the material is cooled and formed in the cavity to obtain a finished product. [0003] When multiple small parts are injection molded through a traditional mold, taking sixteen parts as an example, the sixteen parts will be divided into four groups, each group corresponds to a cavity, and the molten material enters the mold from the injection nozzle and passes through the main channel It flows to the center of the four rectangularly arranged cavities, and then is divided into each cavity by the runner for cooli...

AI Technical Summary

Problems solved by technology

The injection molding method has certain disadvantages. ①The materials cooled and formed in the main channel and the sub-runner are all waste materials, which need to be removed after molding, resulting in waste of materials, which generally account for about 30% of the total materials; ②Materials need to flow through the main channel in turn. After the runner and the runner, it needs to reach the deepest part of the cavity, and the flow path is longer, resulting in a decrease in molding efficiency; ③ Due to the increase of the path, the factors affecting the molding effect increase, and the probability of inferior products increases accordingly, which leads to the difficulty of designing the mold Increase

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