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On-line roll change in the case of a simple structure of the rolling mill stand

A rolling mill stand and layout structure technology, applied in the direction of metal rolling stand, metal rolling stand, metal rolling, etc., can solve the problems of increasing the spacing of rolling mill stands, complicated structural measures, etc., and achieve a large adjustment stroke Effect

Active Publication Date: 2020-01-07
PRIMETALS TECH AUSTRIA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that a large number of movements are required and thus complex structural measures are required on the rolling stand
In addition, the distance between the rolling stands must be significantly increased, which is disadvantageous for technical reasons

Method used

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  • On-line roll change in the case of a simple structure of the rolling mill stand
  • On-line roll change in the case of a simple structure of the rolling mill stand
  • On-line roll change in the case of a simple structure of the rolling mill stand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] according to figure 1 , the rolling mill has a plurality of rolling mill stands. The number of mill stands can vary. exist figure 1 A rolling mill with four rolling stands is shown in , which are identified below with reference numerals 1 to 4 . Alternatively, however, a different number of rolling stands may also be present, in particular 2, 3, 5, 6, 7 or 8 rolling stands. The metal strip 5 is rolled by the rolling stands 1 to 4 of the rolling mill. The metal strip 5 can be, for example, a steel strip or an aluminum strip. Rolling in a rolling mill is usually hot rolling. In addition, according to figure 1 The schematic diagram in , usually a continuous casting machine in front of the rolling mill. However, this has secondary significance within the scope of the present invention.

[0076] The rolling mill is controlled by the control mechanism 6 . Usually, the control unit 6 is designed as a software-programmable control unit. In this case, the control mecha...

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PUM

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Abstract

Inline roll change with a simple roll stand design. In order to remove working rolls from a roll stand, which furthermore comprises an additional roll in each case above and below the working rolls, the upper working roll chocks (21, 22) and the upper additional roll chocks (23, 24) are first connected to one another such that each vertical movement of the upper additional roll chocks (23, 24) is transmitted to the upper working roll chocks (21, 22). The upper additional roll is then moved upwards to a first defined additional roll position (pZI). Next, the upper and the lower working roll are moved out of the roll stand frame.

Description

technical field [0001] The invention relates to a method for removing work rolls from a rolling mill stand, [0002] - where the mill stand has upper and lower work rolls between which the metal strip is passed; [0003] - wherein the rolling stand additionally has upper auxiliary rolls arranged above the upper work rolls and lower auxiliary rolls arranged below the lower work rolls; [0004] - where the upper work roll is supported in the roll stand support of the roll stand by means of the control-side and drive-side upper work roll mounts; [0005] - where the upper auxiliary roll is supported in the mill stand support by means of the upper auxiliary roll mounts on the control side and on the drive side; [0006] - where the upper work rolls and the upper auxiliary rolls are vertically displaceable in the mill stand supports; [0007] - where the lower work roll is supported in the mill stand support by means of the control-side and drive-side lower work-roll mounts; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/10
CPCB21B31/106B21B2013/003B21B2013/025B21B2013/028
Inventor A.菲施特内H.赫菲B.林泽尔M.扎赫迪
Owner PRIMETALS TECH AUSTRIA GMBH