An injection mold with adjustable glue feed

Abstract

The invention discloses an injection mold with adjustable glue inlet quantity. The injection mold with adjustable glue inlet quantity comprises a mold body; a main flow channel arranged left and rightis formed in the surface of the mold body; the main flow channel is communicated with a first branched flow channel, a second branched flow channel, a third branched flow channel and a fourth branched flow channel separately; a front central groove is formed in the upper end face of a front adjusting block arranged rotatably; an inlet of the third branched flow channel is formed in the bottom surface of the front central groove; a plurality of circumferentially distributed front feeding ports are formed in the side wall of the front central groove in an inner and outer run-through mode; the arc length of the outer side ends of the plurality of front feeding ports is equal, and the arc length of the inner side end of the plurality of front feeding ports is reduced clockwise; a back centralgroove is formed in the upper end face of a back adjusting block arranged rotatably; an inlet of the fourth branched flow channel is formed in the bottom surface of the back central groove; a plurality of circumferentially distributed back feeding ports are formed in the side wall of the back central groove in an inner and outer run-through mode; and the arc length of the outer side ends of the plurality of back feeding ports is equal, and the arc length of the inner side end of the plurality of back feeding ports is reduced clockwise. The injection mold with adjustable glue inlet quantity can effectively adjust the quantity of the glue injected into a forming cavity of the mold and guarantees the forming quality of products.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold with adjustable glue feed. Background technique [0002] At present, for the injection molds of large plastic products, the gating system of the injection molds often adopts multi-point glue feeding, so as to achieve simultaneous glue feeding everywhere and improve the injection molding efficiency. The runners generally take the main channel to each inlet The shortest distance between the glue points can save materials, but due to the multi-point glue injection, this will make the speed of each glue point inconsistent, which will lead to inconsistent pressure and glue injection in the cavity, which often leads to problems in the injection molding process. The lack of material, burnt and other poor appearance of the product and the ejection problem caused by the excessive tightness of the product due to partial overfilling, so the injection speed (that is...

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Problems solved by technology

[0002] At present, for the injection molds of large plastic products, the gating system of the injection molds often adopts multi-point glue feeding, so as to achieve simultaneous glue feeding everywhere and improve the injection molding efficiency. The runners generally take the main channel to each inlet The shortest distance between the glue points can save materials, but due to the multi-point glue injection, this will make the speed of each glue point inconsistent, which will lead to inconsistent pressure and glue injection in the cavity, which often leads to problems in the injection molding process. The lack of material, burnt and other poor appearance of the product and the ejection problem caused by the excessive tightness of the product due to partial overfilling, so the injection speed (that is, the amount of glue) has a great influence on the quality of the product and the efficiency of processing. However, on the current injection mold, the single adjustment of the amount of glue

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