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Rolling machine for hot-rolled sheets with excellent rolling assisting property

A coiler and performance technology, applied in the field of sheet rolling, can solve the problems of unsatisfactory sheet and strip introduction performance and uniform winding performance, affecting the normal operation of the coiler and coiling quality, and failing to find a solution. Improve lead-in performance and uniform winding performance, facilitate smooth lead-in and standardize winding, and avoid stacking accidents

Active Publication Date: 2008-09-17
HEBEI IRON AND STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing coiling facilities, the coiling-assisting roller adopts a three-roller surrounding arrangement, the pressure points are distributed in a space of 120 degrees, the pressure points are few, the coiling-assisting pressing force is large, the leading-in performance of the strip during the coiling operation and the uniform winding performance None of them are ideal. When the rolling quality of the plate is not good (such as warped head, the head is biased to the driving side or working side, etc.) or the rolling speed is high, it is easy to loose coils, and it is easy to cause unwinding due to excessive pressure of the coiling roll. Large enough to leave indentations on the surface of the strip; or the head of the strip hits the roll-helping roller when unwinding occurs, resulting in stacked steel
The above phenomenon has obviously affected the normal operation and coiling quality of the coiler, but no effective solution has been found for a long time

Method used

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  • Rolling machine for hot-rolled sheets with excellent rolling assisting property

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Embodiment Construction

[0015] The contribution of the present invention to the prior art lies in changing the traditional three-point arrangement of the winding-helping rollers into an arrangement of more than three points. In the illustrated embodiment, a four-point arrangement is adopted, and the number of roll-helping rolls is four, respectively No. 1, 2, 3, and 4. The four roll-helping rolls 20, 21, 22, and 23 are distributed around the mandrel 19, and each A rolling roll is rotatably supported on a swing arm. One end of each swing arm is a hinged shaft end, and the other end is hingedly connected with the piston rod of the hydraulic cylinder. When reciprocating, the swing arm is driven to swing with the hinge shaft as the axis.

[0016] still see figure 1 . When the number of roll-assist rollers is four, the four roll-assist rolls should be reasonably distributed in a 360-degree circle. The specific position of each roll-assist roll should be combined with the arrangement of each swing arm an...

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Abstract

A hot-rolled sheet coiling machine with better coil-helping performance has a reel, coil-helping rollers, swinging arms for supporting said coil-helping rollers, and hydraulic cylinders for driving said swinging arms. It features that 1-3 coil-helping roller are additionally used for increasing the points to where the pressure is applied, so improving its coil-helping performance.

Description

technical field [0001] The invention relates to an improved coiler used in a thin plate rolling production line, which belongs to the technical field of plate rolling. Background technique [0002] The steel billets are processed into thin strips after initial rolling, finishing rolling, and cutting to length, and then sent to the coiling facility through the conveying roller table, where they are coiled into standard coils with a certain thickness, and then bundled and packaged. After the process, it becomes the final product. The coiler used in the hot-rolled sheet production line is generally composed of a mandrel, a mandrel rotation drive, a coiling roll arranged around the mandrel, a swing arm where the roll is located, and a hydraulic cylinder that drives the swing arm. When the front end of the formed sheet strip enters the positions of the rolling rollers in turn, the hydraulic cylinders of the rolling rollers drive the rolling rollers to move closer to the mandrel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C47/06
Inventor 万海龙李晓刚严爱梅张静娟刘左东张呈瑞秦久莲
Owner HEBEI IRON AND STEEL
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