JPH0523727A - Ringer roll equipment - Google Patents

Abstract

(57) [Summary] [Structure] At least one of the pair of ringer rolls 5 for squeezing out moisture adhering to the surface of the metal strip 1 is outside the maximum width of the metal strip 1 to be threaded. The outer peripheral surfaces of both end portions 5a of the roll were subjected to uneven processing, and one of the pair of ringer rolls was rotationally driven. [Effect] With this, a minute slip between the ringer rolls can be prevented, and the roll life is improved. In addition, roll replacement work becomes easier, productivity is improved, and equipment costs are reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ringer roll device for liquid drawing the surface of a metal strip such as a steel strip in a process line.

[0002]

2. Description of the Related Art Generally, a rubber-lined ringer roll is used in a liquid squeezing device for a surface of a metal strip such as a steel strip in a process line in order to improve liquid squeezability. FIG. 4 is a front view showing a part of a conventional general ringer roll device, 1 is a metal strip such as a steel strip, 2 is a pair of ringer rolls, 3 is a roll bearing,
Reference numeral 4 is a reduction cylinder.

The ringer roll 2 has a smooth surface, has a small coefficient of sliding friction with the metal strip 1, and is easily scratched by slip. Therefore, in order to solve this problem, a method has been proposed in which both the pair of ringer rolls are driven to prevent slippage.

[0004]

However, in the method of driving both the pair of ringer rolls, the installation space for the driving device is required, and the equipment cost is high. When the ringer roll is replaced, it is necessary to attach / detach it to / from the drive unit, which increases the work amount. When a slight difference in peripheral speed occurs between the pair of ringer rolls, a minute slip occurs between the metal strip and the ringer roll, which shortens the roll life. There was a problem.

An object of the present invention is to provide a ringer roll device which solves the above problems.

[0006]

The present invention is directed to at least one ringer roll of a pair of ringer rolls for squeezing out moisture adhering to the surface of a metal strip.
A ringer roll device characterized in that the peripheral surface of both ends of the roll outside the maximum width of the threaded metal strip is subjected to unevenness processing, and one of the pair of ringer rolls is rotationally driven. In addition, in the ringer roll device in which the average outer diameter of both ends of the roll that has been subjected to uneven processing is set to be larger than the outer diameter of the roll central part in consideration of the plate thickness of the metal strip to be passed. is there.

[0007]

According to the present invention, since at least one of the pair of ringer rolls is provided with unevenness on the peripheral surface of both ends of the roll outside the maximum width of the threaded metal strip, the gap between the ringer rolls is reduced. Can increase the coefficient of friction,
A minute slip between the ringer rolls can be prevented and the roll life is improved.

Further, since only one of the pair of ringer rolls is rotationally driven, roll replacement work is facilitated, productivity is improved, and equipment costs are reduced. Furthermore, by considering the plate thickness of the metal strip to be passed through, the average outer diameter of both ends of the roll that has been subjected to uneven processing is made larger than the outer diameter of the center of the roll, and by providing a step, both ends of the roll Can be stably rotated in contact.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a front view of a main part. In FIGS. 1 and 2, 1 is a metal strip, 2 is a lower ringer roll, 5 is an ordinary ringer roll, and 5 is an upper ringer roll, which is the ringer roll according to the present invention.

In the ringer roll 5, the peripheral surface of both end portions 5a of the roll, which is outside the maximum width of the metal strip 1 to be threaded, is processed to have unevenness, whereby friction between the upper and lower ringer rolls 5 and 2 is provided. The coefficient is increased. Here, it is preferable that the average outer diameter of both end portions 5a of the roll is made larger than the roll diameter of the central portion by the average plate thickness to provide the step t. As a result, the both end portions 5a of the roll having the unevenness can be stably rotated in contact with each other.

Reference numeral 6 is a spindle, and 7 is a motor, and the lower ringer roll 2 is rotationally driven. In addition, in the above embodiment, the case where only one end of one ringer roll is textured is described, but the present invention is not limited to this, and even if both ends of a pair of ringer rolls are textured. Good. At this time, it is preferable that the average outer diameter of the uneven portion is larger than that of the central portion by about 1/2 of the average plate thickness to form the step.

FIG. 3 shows an example of processing the uneven portion. Figure 3
3A is a drawing (crepe) process, FIG. 3B is a gear mark process, and FIG. 3C is a concavo-convex process using rubber hardness. Next, specific examples of the present invention will be described. Outer diameter of the upper and lower ringer rolls in the device of Figs.
300mmφ, roll body length 1800mm, unevenness width w = 100mm / one side only on the upper ringer roll end, unevenness processing with average outer diameter 301mmφ (maximum roughness 500μm), only lower ringer roll driven by motor A steel strip with a thickness of 1500 mm and an average thickness of 1.0 mm was processed.

As a result, no slip occurred between the steel strip and the ringer roll, stable rotation of both the upper and lower ringer rolls was obtained, and good liquid drawability could be achieved.

[0014]

According to the present invention, the roll replacement work is facilitated and the replacement time can be shortened by making the end portion of the ringer roll uneven and driving only one roll. Further, since there is only one roll driving source, the minute slip between the ringer rolls is eliminated and the roll life is extended. further,
The roll drive motor has been halved, and electricity costs have been halved. When installing a new device, there is also an advantage that the cost of the device and the construction cost are reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a front view showing a main part of an embodiment of the present invention.

FIG. 3 is a perspective view showing an example of uneven processing of both ends of the ringer roll in the present invention.

FIG. 4 is an explanatory view of a conventional ringer roll device.

[Explanation of symbols]

1 metal strip 2 Ringer roll 3 roll bearing 4 Reduction cylinder 5 Ringer roll 6 spindles 7 motor

Claims (2)

[Claims] 1. A peripheral surface of both ends of a roll outside the maximum width of the metal strip to be threaded with respect to at least one of the pair of ringer rolls for squeezing out moisture adhering to the surface of the metal strip. A ringer roll device, characterized in that a concavo-convex process is applied to one of the ringer rolls, and one of the pair of ringer rolls is rotationally driven. 2. A step is provided by making the average outer diameter of both end portions of the roll having the unevenness processing larger than the outer diameter of the center portion of the roll in consideration of the thickness of the metal strip to be passed. The ringer roll device according to claim 1, which is characterized in that.