A method for replacing work rolls
A replacement method and technology of work rolls, applied in the direction of manufacturing tools, metal processing equipment, metal rolling, etc., can solve problems affecting production efficiency, equipment accidents, long time, etc., achieve accuracy and stability, and improve operation rate and productivity enhancement
Active Publication Date: 2022-03-18
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology
If the automatic positioning position of the work roll is not accurate or the position is lost during the roll change process, the automatic roll change control program will be terminated, and the operator will switch to the manual mode for roll change, which will not only take a long time, affect production efficiency, but also easily cause equipment accidents
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Embodiment Construction
[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045] An embodiment of the present invention provides a work roll replacement method, figure 1 It is a schematic flow chart of the work roll replacement method according to the embodiment of the present invention, combined with figure 1 , the replacement method includes:
[0046] S1: Locate the old work roll;
[0047] S2: Remove the old work rolls from the rolling mill;
[0048] S3: Assemble new work rolls to the rolling mill.
[0049] S1 in the embodimen...
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The invention belongs to the technical field of steel rolling, in particular to a method for replacing work rolls. The replacement method includes: positioning the old work roll, and the positioning of the old work roll includes: using a motor to drive the old work roll to start from a stationary state to a fixed speed; start a positioning switch fixed at a predetermined position, and the old work roll An induction element is arranged on the work roll, and the positioning switch after activation can detect the induction element; when the positioning switch detects the induction element, the induction element is in the predetermined position; the positioning switch detects After the induction element, the rotation speed of the motor is controlled, and after the motor drives the old work roll to rotate 360°, the induction element stops at the predetermined position to position the old work roll. The invention can realize the accuracy and stability of the automatic positioning of the work rolls, and achieve the purpose of improving the operating rate and productivity of the rolling mill.
Description
technical field [0001] The invention belongs to the technical field of steel rolling, in particular to a method for replacing work rolls. Background technique [0002] Hot rolling is a necessary process in the strip steel production chain of a modern steel mill. In the hot rolling production process, it is usually necessary to change the work rolls of the finishing mill for each batch of slabs rolled. Therefore, the replacement of work rolls is a hot The key link in the production process of continuous rolling line. [0003] With the release of hot rolling production capacity and the improvement of rolling rhythm, the average time for changing work rolls for each finishing rolling (that is, the time from throwing steel in F1 rolling mill to biting steel in F1 rolling mill) has dropped to less than 10 minutes. The automatic positioning of the work rolls puts forward higher requirements. If the automatic positioning position of the work roll is not accurate or the position i...
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IPC IPC(8): B21B31/08
CPCB21B31/08
Inventor 张维中张泽朋秦小龙孟庆龙冯树成查樟根
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD