Hydraulic translation scissors control method

Abstract

The invention relates to a control technique of aluminium processing equipment, relating to a control method used for a hydraulic translation shear in aluminium strip casting rolling equipment. The method of the invention comprises the steps as follows: the action process of the hydraulic translation shear is controlled by a PLC internal time relay; the hydraulic translation shear receives a shearing instruction under an initial state and starts to move ahead and the timing is started; after a certain time delay t1, the hydraulic shear is controlled to shear downwards; after a certain time delay t2 subsequently, the hydraulic shear is controlled to open upwards; simutaneously, the hydraulic shears moves forwards; after the time delay t3, the hydraulic translation shear is controlled to start to return till achieving the original position and recovering the initial state, thus completing an action circulation. Compared with the traditional method, the control technique of the invention cancels the circumferential position limit, greatly reduces the electric fault rate, improves the action reliability and ensures the normal running of the production.

Description

technical field [0001] The invention relates to the control technology of aluminum processing equipment, and relates to a control method of hydraulic translational shears used in aluminum strip casting and rolling equipment. Background technique [0002] The hydraulic translational shear is one of the important components of the casting and rolling production line. It is installed between the casting and rolling machine and the coiling equipment. Large materials, and when a roll of strip material needs to be cut when the next roll starts to be wound. When cutting, in order not to hinder the normal exit and winding of the strip, the hydraulic translational shear must move quickly with the strip and cut synchronously during the movement, and return to the original position after the cutting is completed. In order to ensure the synchronous shearing of the hydraulic translational shears, the existing equipment is controlled by a limit switch placed on its stroke, but the limit ...

AI Technical Summary

Problems solved by technology

In order to ensure the synchronous shearing of the hydraulic translational shears, the existing equipment is controlled by a limit switch placed on its stroke, but the limit switch and the peripheral circuit are easily damaged and malfunctioned, which may cause shearing out of control, resulting in abnormal Broken board

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