Rotary trimming shears of which lateral clearances and overlapping quantities of cutterheads can be subjected to closed-loop regulation and control

Abstract

The invention discloses rotary trimming shears of which lateral clearances and overlapping quantities of cutterheads can be subjected to closed-loop regulation and control. The rotary trimming shears comprise a trimming shears device and a regulation and control system, wherein the trimming shears device comprises a tool rest, a lower cutter shaft, an upper cutter shaft, an upper cutterhead, a lower cutterhead, a lateral clearance adjustment motor and an overlapping quantity adjustment motor; and the regulation and control system comprises a controller, an upper cutter shaft position detection sensor, a lower cutter shaft position detection sensor, an upper cutterhead position detection sensor and a lower cutterhead position detection sensor, and the controller controls the lateral clearance adjustment motor and the overlapping quantity adjustment motor according to detection signals of the sensors. The upper and lower positions of the upper cutter shaft and the lower cutter shaft are detected by the two sensors respectively so as to obtain accurate overlapping quantities; meanwhile, the axial positions of the upper cutterhead and the lower cutterhead are detected by the other two sensors respectively so as to obtain accurate lateral clearances; and the accurate overlapping quantities and the accurate lateral clearances are taken as evidences of motor adjustment, so that the closed-loop regulation and control of the lateral clearances and the overlapping quantities are realized, and the adjusting accuracy of the lateral clearances and the overlapping quantities is effectively improved.

Description

technical field [0001] The invention relates to strip and plate processing equipment in steel rolling production, in particular to a strip trimming equipment. Background technique [0002] In the production process of metal strips and plates, trimming is a very common production step. At present, all production lines use disc-type trimming devices to trim metal strips and plates. For disc-type trimming As far as the edge device is concerned, the quality of edge trimming has a very close relationship with the side clearance and overlap of each side of the cutter head. It can be known from production practice that when cutting metal strips or plates with different thicknesses, the size of the side clearance and overlap of the cutter head is also different. Make adjustments. [0003] In the existing technology, the adjustment system of cutterhead side clearance and overlap amount adopts open-loop adjustment without feedback, such as patent 200720083199.4, 200720083198.X and s...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a disc edge trimming shear with closed-loop adjustment and control of the side clearance and overlap of the cutterhead. The edge trimmer detects the precise position of the cutter shaft and the cutterhead through sensors, and feeds back the detection information To the controller to control the action of the motor to solve the technical problem of low adjustment accuracy and unreliability of the existing side trimming shears that adjust the side gap and overlap according to the number of motor rotations

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