Injection molding screw structure for stall braking by utilizing electrorheological fluid principle

Abstract

The invention relates to the technical field of injection molding and discloses an injection molding screw structure for stall braking by using an electrorheological fluid principle. The injection molding screw structure comprises a mounting base; a movable groove I and a movable groove II are separately formed in the mounting base; a brake mechanism I is arranged in the movable groove I; and a brake mechanism II is arranged in the movable groove II. According to the injection molding screw structure for stall braking by utilizing the electrorheological fluid principle, through cooperative useof the brake mechanism I, the brake mechanism II, a coil and a conductor, when the rotating speed of a rotating shaft exceeds a rated rotating speed, automatic braking can be realized, and the rotating speed of the rotating shaft is reduced to a rated value, so that the rotating speed of a screw connected with the rotating shaft is reduced, and the problem that the rotating speed of the screw isdifficult to control or stall due to plastic materials, different injection molds and setting of wrong machining parameters is solved, the quality and the percent of pass of formed products are greatly improved, the service life of parts is prolonged, and the income of enterprises is increased.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to an injection molding screw structure utilizing the principle of electrovariation for stall braking. Background technique [0002] Injection molding is a method of producing industrial products. Injection molding, also known as injection molding, is a molding method of injection and molding. The advantages of injection molding method are fast production speed, high efficiency, and automatic operation. At a certain temperature, the completely molten plastic material is stirred by the screw, injected into the mold cavity with high pressure, cooled and solidified, and the molded product is obtained. The injection pressure is one of the important factors affecting the quality of the molded product. The injection pressure comes from the screw. The pressure exerted by the top on the molten plastic. [0003] Proper injection pressure requires very precise control of the screw ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an injection molding screw structure using the principle of electrovariation for stall braking, which has the advantage of stall braking and solves the problem that it is difficult for injection molding machines on the market to control the screw speed and cause the screw to stall. question

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