Method for semi-automatically adjusting plate shape based on plate shape defects
An adjustment method, a semi-automatic technology, applied in the direction of contour control, etc., can solve the problems of unguaranteed, deterioration of plate shape defects, long time, etc.
Active Publication Date: 2014-04-23
上海宝立自动化工程有限公司 +4
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Problems solved by technology
In the absence of a shape meter, when a shape defect occurs, the operator needs to intervene in the shape adjustment mechanism. For example, when there is a unilateral wave, the operator needs to adjust the tilting; The operator needs to increase the bending force of the work roll and the middle roll. When there is a middle wave, the operator needs to reduce the bending force of the work roll and the middle roll. It is necessary to increase the bending force of the work roll and decrease the bending force of the intermediate roll. High requirements are placed on the operators. Even skilled operators cannot guarantee to perform proper operation in the correct adjustment direction in the first time when the shape defect occurs. From the appearance of the shape defect to the elimination of the shape defect, it is necessary A longer period of time may even lead to aggravation of shape defects
Method used
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Embodiment Construction
[0020] The present invention is implemented on a certain 1050mm cold-rolling reversible rolling mill. The product thickness of this rolling mill is below 0.3mm. Since there is no flatness meter, this rolling mill has no automatic flatness adjustment function. The roll knocking method senses the shape defect of the plate, and adjusts the increase or decrease of the bending roll or the tilting.
[0021] In order to reduce the labor intensity and operating skill requirements of operators, the invention is modified. In order to make full use of the existing operating knobs, the method of using the knobs in time is adopted to realize the sharing of one knob in the old and new plate shape adjustment modes. Pressing the alarm light and the bending force of the intermediate roll on the transmission side at the same time means selecting the new shape adjustment mode, pressing the alarm light and the bending force of the intermediate roll on the transmission side simultaneously to selec...
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Abstract
The invention relates to a method for semi-automatically adjusting a plate shape based on plate shape defects. The method comprises the following steps of: (a) algebraizing the adjustment amount of a bowed roller; (b) performing undisturbed switching from an old plate shape adjustment system to a new plate shape adjustment system; (c) adjusting the plate shape defects of the new plate shape adjustment system; (d) switching from the new plate shape adjustment system to the old plate shape adjustment system; and (e) protecting the adjusted amplitude limiting of the bowed roller. The invention aims to provide the method for semi-automatically adjusting the plate shape based on the plate shape defects without plate shape gauges, which is applied to plate shape adjustment of cold rolling reversible mills. By the adjustment method, on-site operation personnel can quickly overcome the plate shape defects according to the conditions of the plate shape defects, and the effect is obvious.
Description
technical field [0001] The invention belongs to the field of flatness adjustment of cold-rolling reversible rolling mills, and relates to a semi-automatic adjustment method for flatness based on strip shape defects under the condition of no flatness meter. Background technique [0002] There are many types of flatness adjustment actuators in cold rolling reversing mills. The common flatness adjustment actuators include tilting control, work roll bending control, intermediate roll bending control and intermediate roll movement control. Common board shape defects include unilateral wave, double-sided wave, middle wave, side-medium wave and quarter wave. Among them, the unilateral wave defect is eliminated by tilting adjustment, and the double-sided wave defect and middle wave defect are adjusted by working roll bending and the middle wave. The roll bending adjustment is eliminated, and the side wave and quarter wave are completed by the work roll bending adjustment and the mid...
Claims
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IPC IPC(8): B21B37/28
Inventor 胡洪国
Owner 上海宝立自动化工程有限公司