Rolling method for expanding capacity of coiling machine and eliminating impressions of heads of coiled materials

Abstract

The invention provides a rolling method for expanding the capacity of a coiling machine and eliminating impressions of the heads of coiled materials. Plate strips are rolled by a plurality of machine frames through the rolling method. The rolling method is characterized by comprising the steps of 101, determining the thickness specification and the thickness adjusting amount of the plate strips needing to be rolled with the variable specification, 102, determining the rolling reduction of a first machine frame during rolling, 103, checking rolling force of the first machine frame, 104, calculating the length of the heads of the plate strips needing to the rolled with the variable thickness of each machine frame, 105, determining the roller gap adjusting amount of each machine frame, and adjusting a roller gap of each machine frame. According to the rolling method, a user can conveniently roll the plate strips of the four machine frames, and the plate strips sequentially pass through the first machine frame, the second machine frame, the third machine frame and the fourth machine frame and form the wedge-shaped heads, so that the maximum allowed coiling thickness of the coiling machine and an assisting coiling device is improved, and the capacity of the coiling machine is expanded; the impressions caused by the excessively-thickened strip heads in the middles of the coiled materials are eliminated, the yield of the coiled materials is improved, the material yield is improved, and losses are reduced.

Description

technical field [0001] The invention relates to the technical field of metal pressure processing, in particular to a rolling method for expanding the capacity of a coiler and eliminating the print on the head of a coil. Background technique [0002] In the prior art, when metal coils are rolled by a hot continuous rolling mill, it is usually necessary to configure a coiler at the exit of the finished product stand, and the coiler is generally equipped with a coiling belt or a coiling roll to ensure that the head of the coil is The part can be smoothly wound on the reel of the coiler. When the thickness of the finished roll exceeds a certain value, and the yield strength of the finished roll is relatively high, the winding-assisting belt or roll usually cannot smoothly bend the head of the coil and cling to the coil of the coiler , resulting in coil failure. And even if this kind of finished roll can be rolled successfully, but because the head of the coil is thick, the coi...

AI Technical Summary

Problems solved by technology

When the thickness of the finished roll exceeds a certain value, and the yield strength of the finished roll is relatively high, the winding-assisting belt or roll usually cannot smoothly bend the head of the coil and cling to the coil of the coiler , resulting in failure of coiling

And even if this kind of finished roll can be rolled successfully, but because the head of the coil is thick, the coil of the outer ring will usually leave the mark of the head of the coil during the coiling process, until after several coils , the imprint on the head of the coil will gradually lighten and disappear, which seriously affects the surface quality of the coil, reduces the yield, and at the same time poses a threat to the service life of the coil belt or roll

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