Material ejecting mechanism of screw press

Abstract

A material ejecting mechanism of a screw press comprises a machine body, a working table, a base and a guide rail, wherein sliding blocks are arranged on the guide rail; a lead screw penetrates through the side surfaces of the machine body and further penetrates through a lead screw nut in the middle of each of the two sliding blocks; threads which are opposite in the spiral directions are formed in the middle of the lead screw; the lead screw is mounted on the machine body through a bearing; a guide sleeve is fixedly arranged in the central hole of the working table of the machine body; an ejecting rod is arranged in the guide sleeve; the lower end of the ejecting rod is movably hinged to one end of each of two toggle rods; the other end of each of the toggle rods is movably hinged to the corresponding sliding block; a motor support frame is fixedly mounted on one side of the machine body, and an electric motor is fixedly mounted on the motor support frame; the electric motor drives the lead screw to perform positive and negative rotation through a corresponding transmission mechanism, so as to achieve the purpose of material ejecting. The material ejecting mechanism of the screw press has the advantages that the structure is simple, the process of material ejecting is independent of the return stroke motion and power of the sliding blocks of the screw press, corresponding control is performed according to specific process and working conditions, and errors are less likely to occur.

Description

technical field [0001] The invention relates to a screw press, in particular to a screw press jacking mechanism, and belongs to the technical field of screw presses. Background technique [0002] At present, the ejecting mechanism of the existing screw press generally uses the return force of the slide block of the screw press to eject the workpiece or waste from the mold. Although this ejecting mechanism has certain advantages, due to The ejecting mechanism needs to maintain a strict rhythm with the return stroke of the slider. Some unexpected situations may easily cause the failure of the ejector to set up and cause damage to the mold or press. In addition, the screw press generally has weak strength in the return state. Some large and special-shaped workpieces or waste materials cannot be ejected in time sometimes. This situation not only affects the production efficiency, but also is prone to safety accidents. In order to solve the above problems, in the existing technol...

AI Technical Summary

Problems solved by technology

[0002] At present, the ejecting mechanism of the existing screw press generally uses the return force of the slide block of the screw press to eject the workpiece or waste from the mold. Although this ejecting mechanism has certain advantages, due to The ejector mechanism needs to maintain a strict rhythm with the return stroke of the slider. Some unexpected situations may easily cause the failure of the ejector setting and damage the mold or press. In addition, the screw press generally has weak strength in the return state. Some large and special-shaped workpieces or waste materials cannot be ejected in time sometimes. This situation not only affects the production efficiency, but also is prone to safety accidents. In order to solve the above problems, in the existing technology, there are also workbench The solution is to set up an independent jacking mechanism. However, this kind of jacking mechanism is generally composed of a hydraulic cylinder. Since the hydraulic cylinder needs a corresponding hydraulic system, the space occupied by the equipment and the investment in the equipment are relatively large. At the same time, The place where the screw press works generally has a high ambient temperature and a relatively harsh environment, and the hydraulic system is also easily damaged.

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