Adjustment method for pinch roll of double-sided shears

An adjustment method and technology of pinch rollers, applied in metal processing equipment, feeding devices, manufacturing tools, etc., can solve the problem that the installation and adjustment accuracy of pinch rollers is difficult to achieve the desired effect, influence, installation and adjustment accuracy, pinch roller deviation, etc. problems, to achieve the effect of reducing poor shearing quality, avoiding deviation, and improving installation accuracy

Inactive Publication Date: 2012-06-13
HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After several adjustments and inspections on site, most of the problems can be effectively controlled, only the installation and adjustment accuracy of the pinch roller is difficult to achieve the desired effect, and the installation and adjustment accuracy of the pinch roller has a very important impact on the deviation of the pinch roller

Method used

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  • Adjustment method for pinch roll of double-sided shears
  • Adjustment method for pinch roll of double-sided shears
  • Adjustment method for pinch roll of double-sided shears

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Experimental program
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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and embodiment this method is described further:

[0015] See attached figure 1 , in the schematic diagram of pinch roller distribution, there are 8 pinch rollers 1 (16 for some double-sided shears), of which there are two on the fixed side of the entrance (one on the upper and one on the lower), and two on the moving side of the entrance (one on the upper and lower) 1 for each), two on the fixed side of the exit (1 each on the upper and lower sides), two on the moving side of the exit (1 each on the upper and lower sides); the double-sided shear racks are divided into fixed side racks 2 and mobile side racks 3 .By moving the side frame 3, the width of the two frames can be adjusted between 1400mm-3700. The steel plate transportation direction is from the entrance to the exit.

[0016] See attached figure 2 , in the schematic diagram of parallelism adjustment, pull a steel wire 4 parallel to the trimming scissors betwee...

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PUM

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Abstract

An adjustment method for a pinch roll of double-sided shears is disclosed, and is characterized by comprising the following process steps of: (1) adjusting the elevation of the roll surface of a lower pinch roll: measuring the relative elevations of the upper surfaces of side-trimming shear blades by a level at first, and then re-measuring by the level; (2) adjusting the parallelism of the pinch roll: pulling steel wires in front of and behind the double-sided shears and adjusting the steel wires to be parallel with the blades of the double-sided shears at first, and then adjusting bolts and nuts by adjusting the parallelism, so as to shift the roll ring of the pinch roll forwards and backwards along a horizontal direction; and (3) adjusting the deflection of the pinch roll: measuring on the end part of the roll ring of the pinch roll by a feeler gauge and a frame-type level. A pinch roll of double-sided shears is measured and adjusted by the adjustment method for a pinch roll of double-sided shears disclosed by the invention, so that the installation accuracy of the pinch roll is greatly increased; the deviation of the pinch roll can be efficiently prevented, and the deviation phenomenon of steel plate during the feeding and transportation processes of the pinch roll is avoided, so that the phenomena such as bad shearing quality are reduced.

Description

technical field [0001] The invention belongs to the design of steel rolling, in particular to a method for adjusting double-side shear pinch rolls of a finishing line. Background technique [0002] The production and finishing lines of wide and thick plates in rolling mills are basically equipped with rolling-cut double-sided shearing equipment. The double side shear is one of the most important equipment on the finishing line. Its function is to cut the remaining material on both sides of the steel plate to make the two sides of the steel plate flat. However, during the cutting process of double-sided shears, steel plates often deviate, and the wrong knife is cut. There are many reasons for cutting the wrong knife of the steel plate deviation machine: the level of the roller table at the front and rear of the machine, the speed of the roller table, the gap between the shear blades, the size of the pinch roller, the speed of the pinch roller, and the installation and adjust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D43/09
Inventor 赵解来刘明华
Owner HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
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