A vertical injection molding mechanism with high-efficiency mold clamping and its working method

Abstract

The invention discloses a high-efficiency mold-clamping vertical injection molding mechanism and its working method. It comprises a main box body, a lower support plate is fixedly installed at the bottom of the inner cavity of the main box, and three vertically arranged guide rods are fixed on the upper surface of the lower support plate. The three guide rods all run through the injection molding table, the lower surface of the injection molding table is rotatably provided with a gear plate, and the inner ring of the gear plate is fixedly embedded with a rotating plate. In the present invention, two second cylinders and two sliding rods arranged symmetrically drive the hydraulic cylinder and the injection pipe to move downward more balancedly. The descending process is buffered, which solves the technical problem of the large vibration amplitude of the injection molding machine in the prior art that causes deviations in the injection molding process, and solves the high residual rate of injection molding raw materials in the prior art, which cannot be fully utilized, and may cause blockage of the injection molding cavity at the same time technical problems.

Description

Technical field[0001]The invention relates to the technical field of injection molding, in particular to a vertical injection molding mechanism with efficient mold clamping and a working method thereof.Background technique[0002]Injection molding is a method of producing shapes for industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression method and die casting method. According to the arrangement of the injection molding device and the clamping device, it can be divided into vertical, horizontal and vertical-horizontal composite.[0003]The patent document (201721846392.9) discloses a multi-color injection molding vertical injection molding machine. The vertical injection molding machine sets a number of injection components on a support frame, and each injection component is equipped with an upper mold steel component corresponding to the lower mold cylinder. The component...

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Problems solved by technology

[0004] The object of the present invention is to provide a vertical injection molding mechanism with high efficiency mold clamping and its working method, so as to solve the following technical problems: (1) drive the hydraulic cylinder and the injection tube through two symmetrically arranged second air cylinders and two sliding rods The downward movement process is more balanced, and the spring rod at the bottom of the sleeve shrinks when it touches the upper surface of the upper support plate, which buffers the lowering process of the injection tube, and solves the problems caused by the large vibration amplitude of the injection molding machine in the prior art during the injection molding process. The technical problem of deviation; (2) By setting the movable plate in the upper mold cavity, the hydraulic rod pushes the movable plate through the ring clip, the sliding blocks on both sides of the movable plate slide down along the chute, and the movable plate passes the injection molding material through the upper mold Extrusion, after the injection molding is completed, the hydraulic cylinder retracts the hydraulic rod, and the spring pushes the movable plate upward to return to the initial position, which solves the technical problem of high residual rate of injection molding raw materials in the prior art, which cannot be fully utilized, and may cause blockage of the injection molding cavity

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