Injection made showerhead

Abstract

The invention discloses an injection nozzle which includes a nozzle body, an empty cavity arranged in the middle part of the nozzle body and communicated with the outside of the nozzle body, a thread arranged on the lower surface of the nozzle body and at least two nozzles uniformly arranged at the upper end of the nozzle body; discharge channels are respectively arranged between the nozzles and the empty cavity. The invention is characterized in that the discharge channels are respectively arranged at one side of the axle wire of the nozzle body and form a certain incline degree with the axle wire; the direction of the incline degree of the discharge channels is the same as the rotation direction of the thread. The injection nozzle has the advantages that when the injection nozzle is in a working state, the counterforce of material leads the injection nozzle to screw according to the rotation direction of the thread; thereby achieving the function of self-locking and avoiding a die from being damaged caused by the loosening of the injection nozzle.

Description

technical field [0001] The invention relates to an injection nozzle, in particular to an injection nozzle with a self-locking function. Background technique [0002] There are strict specifications in the production of medical products, and the requirements for mold materials and precision are very strict. At present, the lower surface of the spray head used in injection molding machines is provided with threads, so that it can be screwed with the threads on the upper mold, and the nozzle is matched with the lower mold. In the injection molding process, the material has a certain speed when it is ejected from the outlet of the nozzle, and at the same time, the product is produced frequently, which makes the nozzle receive an intermittent reaction force from the material, which makes the nozzle easy to loosen or even fall off. However, the upper and lower molds and nozzles are matched according to certain requirements. A loose nozzle will destroy this cooperation, and in sev...

AI Technical Summary

Problems solved by technology

In the injection molding process, the material has a certain speed when it is ejected from the outlet of the nozzle, and the products are produced frequently at the same time, which makes the nozzle receive an intermittent reaction force from the material, which makes the nozzle easy to loosen or even fall off. However, the upper and lower molds and the nozzles are matched according to certain requirements. A loose nozzle will destroy this cooperation, and even damage the mold if it is serious, resulting in the scrapping of the whole set of molds.

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