Self-locking injection nozzle device and locking control method thereof

Abstract

The invention discloses a self-locking injection nozzle device and a locking control method thereof. The self-locking injection nozzle device comprises a nozzle jacket, a glue penetrating valve, a jet nozzle, an ejector pin and an ejector pin drive lever, through a structure design and coordination of the ejector pin drive lever, the jet nozzle, a molten material runner and the ejector pin, the drive device automatically pushes the ejector pin to lock an injection orifice through the ejector pin drive lever during melting of glue; when a glue storage cavity of the jet nozzle full of molten mass reaches certain pressure, the ejector pin automatically retreats to open the injection orifice to inject the glue under the pressure action of the molten mass, so that the injection nozzle device has the advantages of being simple in structure, easy to produce and fabricate, low in production cost and the like; particularly, the sealing by automatically blocking the injection orifice is effectively achieved; the molten mass is prevented from casting in the glue melting process; and the molten mass pushes the ejector pin to retreat by the pressure of the molten mass to open the injection orifice, so that the control method is simple and accurate; the process is controlled without the drive device; and energy sources are saved.

Description

technical field [0001] The invention relates to the technology in the field of injection molding nozzles, in particular to a self-locking injection molding nozzle device and a locking control method thereof. Background technique [0002] The current open nozzle is prone to the problem of flashing, that is, the molten material flows out from the nozzle opening during pre-molding, and the flashing not only causes a large amount of waste of raw materials, but also has a negative impact on the injection molding process of the product; in the prior art, also Some control the opening and closing of the nozzle opening by designing a switch, but they generally have the disadvantages of high energy consumption, complex structure, troublesome processing, high manufacturing cost, and complicated control methods. [0003] Therefore, it is necessary to work out a new technical solution to solve the above problems. Contents of the invention [0004] In view of this, the present inventi...

AI Technical Summary

Problems solved by technology

[0002] The current open nozzle is prone to the problem of flashing, that is, the molten material flows out from the nozzle opening during pre-molding, and the flashing not only causes a large amount of waste of raw materials, but also has a negative impact on the injection molding process of the product; in the prior art, also Some control the opening and closing of the nozzle opening by designing a switch, but they generally have the disadvantages of high energy consumption, complex structure, troublesome processing, high manufacturing cost and complicated control methods.

Images