JPS6046807A - Tension generating device - Google Patents

Abstract

PURPOSE:To make the distribution of thickness in the width direction of a strip effectively adjustable and to control properly a passing position in the width direction to a rolling mill, by passing a continuously running strip to be rolled through a tension generating device consisting of an upper roll and two lower rolls located at the inlet side of the mill. CONSTITUTION:In feeding a strip S such as a steel strip, the distribution of its tension in its width direction is adjusted by passing it through a tension generating device located at the inlet side of a rolling mill to control the passing position of strip S in its width direction. The tension control device is constituted of an upper roll 3 and two lower rolls 1, 2, and the rolls 1, 2 are fixed to a lower frame 4 and the roll 3 is fixed to an upper frame 5 through bearings. The distance between the roll 3 and the rolls 1, 2 is changed by the vertical movement of another upper frame 6 to which the roll 3 is fixed through a pin 8, and the movement is produced by a pinion 11 and a rack 10 which are driven by actuating a cylinder 9; the uniform distribution of tension in the width direction is given to the running strip S to pass it at the right position with respect to the rolling mill.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a tension generating device suitable for use in a continuously running strip material, and particularly for effectively adjusting the tension distribution in the width direction of the strip material. The present invention relates to a tension generating device that can be used to generate tension.

[Prior art]

Conventional tension generators have a mechanism that generates tension by pressing a plurality of rollers against a running strip with arbitrary loads, creating a bending moment inside the strip, and creating tension in the width direction within the strip. Only a predetermined constant tension was generated as the tension.

However, depending on the shape of the strip itself in the width direction or running direction, the tension distribution in the width direction inside the strip may vary continuously. For example, when entering a rolling mill, the strip must be fed into the position required by the rolling mill under tension, but the payoff for feeding the strip is -1y-
There was a problem in that the distance between the rolling mill and the rolling mill was long, and due to machine installation errors, it was impossible to feed the strip to the required position of the rolling mill.

[Purpose of the invention]

The present invention has been made in view of these problems, and its purpose is to effectively adjust the tension distribution in the width direction of the running strip material, thereby reducing the width of the strip material as it passes through the width direction. The object of the present invention is to provide a tension generating device whose position can be appropriately changed.

[Summary of the invention]

That is, the gist of the present invention is to move the bearings at both ends of one roller separately or simultaneously, and to press the roller against the strip by varying the force in the axial direction of the roller. This tension generator is capable of controlling the passing position in the width direction while applying an arbitrary tension to the strip material.

[Embodiments of the invention]

Next, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a tension generating device that generates tension in the strip material S by arranging three rollers, a lower roller 1.2 and an upper roller 3, on the inlet side of a rolling mill (not shown). is fixed to a lower frame 4 via a bearing, and this lower frame 4 is fixed to the earth.

The upper roller 3 is fixed to an upper frame 5 via a bearing, and this upper frame 5 is connected to an upper frame 6 via a connecting pin 7, so that it can be rotated carefully around this pin 7. The upper frame 6 is connected to a cylinder 9 via a connecting pin 8.

Therefore, the force from the cylinder 9 is applied to the upper frame 6 via the connecting bin 8, and from the upper frame 6 to the upper frame 5 via the connecting bin 7, so that the upper roller 3 is pressed against the strip material S. It has become.

Note that the upper frame 6 moves up and down along a rack 10 fixed to the earth via a pinion 11 fixed to the upper frame 6, so it does not wobble from side to side. It can be moved up and down in a horizontal position.

FIG. 2 is a view of FIG. 1 viewed from the running direction of the strip material S. Rods 12 are arranged on the left and right sides of the upper frame 5, and a block 13 is fixed to the upper end of the rod 12 with a nut 14. has been done. This nut 14 is a double nut and is prevented from rotating.

A stopper 15 is provided below the block 13. This stopper 15 moves up and down as the worm 16 and wheel 17 rotate, and can be set at any desired position.

When the pick and the upper frame 5.6 are pushed downward by the cylinder 9, these upper frames 5.6 are pushed down until the lower surface of the block 13 hits the upper surface of the stopper 15, and the left and right positions of the upper roller 3 are determined. be done. Furthermore, code 1
8 indicates a bracket.

Also, since the upper frame 5 is pushed on its left and right sides by the spring 19 between it and the upper frame 6, the stopper 15
Like the upper frame 6, it can be moved up and down until it hits the block 13.

The difference between the left and right height positions of the tab and stopper 15 appears as a difference in the force of the spring 19 after the upper frame 5 has descended.

A liner 20 is attached to the upper frame 6, and a liner 21 is attached to the upper frame 5, so that the upper frame 5.6 can move up and down smoothly.

FIG. 3 is a top view of FIG. 1, and shows that the rotation of the motor 22 is transmitted through the shaft 23 to the gear box 24, and further to the shirt 25, 34.

The rotation of the shafts 25, 34 is transmitted to the gear boxes 27, 3 via the gear camp ring 26 and the clutch 35, respectively.
6, and further to shafts 28°31, 37.40. The rotation of the shaft:y) 28.37 is transmitted to the worm jack 30.39 via the gear coupling 29.38, so that the left and right stoppers 15 can be moved up and down. The rotation of the shaft 31.40 is controlled by the Celsin 33 via the rubber coupling 32.41.
．． 42, and the movements of the left and right stoppers 15 can be expressed electrically.

Next, the effect will be explained.

First, to properly adjust the relative height positions of the left and right stoppers 15, select whether to transmit the rotation of the shaft 34 transmitted from the motor 22 to the worm jack 39 or the sershin 42 using the clutch 35. If the strip material S is passed between the three rollers 1, 2.3 in this state, the pressing force from the left and right ends of the upper opening 23 will change depending on the relative height position of the stopper 15, The material S can be controlled to any passing position.

In addition, in FIG.
This can be adjusted by changing the relative distance between the upper roller 3 and the upper roller 3.

For example, if the distance between the lower roller 1 and the first roller 3 is increased, the lateral movement of the strip S can be increased.

Further, it is also possible to form any or all of the three rollers 1, 2, 3 as shown in FIG. 4 to prevent the strip material S from meandering.

That is, the set roller 43 is employed for any or all of the rows 21, 2.3. The right side of the grooved roller 43 has a left-hand thread, and the left side has a right-hand thread. When the grooved roller 43 is rotated in the direction of the arrow in FIG. Due to the central action of the groove, the center of the material S always passes through the position where the left-hand thread and the right-hand thread meet.

In particular, this grooved roller 43 is connected to the lower roller 2 and upper roller 3.
By adopting this method, it is effective to prevent the belt material S from meandering.

〔Effect of the invention〕

As described above, according to the present invention, since the pressing force applied to the strip material in the width direction is changed, the passing position of the traveling strip material in the width direction can be appropriately controlled.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of one embodiment of the present invention, and FIG.
The figure is a front view seen from the running direction of the strip, FIG. 3 is a plan view of FIG. 1 seen from above, and FIG. 4 is an explanatory diagram of the grooved roller. 1.2...lower roller, 3...upper roller, 5,6...
・Upper frame, 9...Cylinder, 13...Block, 15...Stopper, 22...Motor, 35...
・Clutch, Figure 1 Figure 2 '$31211

Claims (1)

[Scope of Claims] 1. In a tension generating device that generates tension in a strip material by pressing a plurality of rollers from above and below with an arbitrary load on a strip material traveling at an arbitrary speed, Two rollers are placed on one of the two surfaces facing each other in the width direction of the strip, which is a direction perpendicular to the running direction of the strip, and one roller is placed between the two rollers from the other surface. The rollers are disposed opposite to the other surface, and the positions of the bearings at both ends of this single roller are movable separately or simultaneously in the width direction of the surface of the strip material and in the direction perpendicular to the running direction. A tension generating device that generates tension distribution in the width direction and is able to adjust the movement of the strip in the width direction. 2 A groove formed continuously or intermittently in the longitudinal direction of the roller as the roller rotates is provided on the front surface of any plurality of rollers among the plurality of rollers, so that the center of the strip material is always 2. The tension generating device according to claim 1, wherein the tension generating device is configured to pass near any position where the roller is set. 3. Among the three rollers facing each other across the two sides of the strip material, only one roller is located on one surface of the strip material, and the roller on the other surface of the strip material. Claims characterized in that the relative distance between the two rollers and the roller located at the front in the running direction can be increased or decreased, and the amount of movement in the width direction with respect to the tension distribution of the band material can be adjusted. The tension generating device according to item 1 or 2.