JPS58221608A - Continuous rolling looper device - Google Patents

Abstract

PURPOSE:To obtain a successive looper device which causes neither excessive tension nor looseness of a strip by providing load meters on which only a vertical load operates on the bearings of a looper rolls and a means of moving up and down a mechanism part for supporting the bearing. CONSTITUTION:Both ends of the looper roll 3 for conveying the strip 2 running between rolling mills is fixed pivotally by bearings 5 equipped with load meters 4. Only the vertical load operates on those load meters 4. Each bearing 5 is supported by one end of a looper roll frame 6, which is provided with a rack 7 to link to a reversible motor 9 through a pinion 8. This motor 9 is fitted with a position detector 10. Signals from the load meters 4 and position detector 10 are processed and the result is sent to a controller to control the speeds of the rolling mills. Further, the motor is driven by the output of the controller to move up and down the looper roll frame 6 through the rack 7 and pinion 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous rolling louver device for preventing strips rolled by continuous finishing rolling mills from being excessively stretched or loosened between rolling mills during running. It is.

As shown in Fig. 1, in the conventional type of equipment, the looper roller Q, which is conveying the strip +21> running between rolling mills, is fixed by a bearing (to), and the bearing (c) is loaded with a load. Total (
property) is installed. The end (c) has a bearing (
C) is attached, and the rotation shaft (A) is attached to the other end. A drive machine (c) that can freely rotate in both forward and reverse directions is connected to the rotation shaft (a).

As shown in Fig. 1, the inclination angle of the arm (C) with the horizontal line is θ when the looper roller Q side is in the human position, and B
When it is in the state, it is O.

To attach the load cell (24) to the bearing (c), use the arm (2).
When the inclination angle θ with respect to the horizontal line of 51 is O, that is, when the louver roller (2) is in the state B, all of the vertical load F such as the strip Qυ acts on the load cell Q41.

The adjustment method for preventing excessive tension or loosening of the strips in conventional equipment is to detect excessive tension or loosening in the strip 121) from signals acting on the load cell (24). is detected, and the drive machine Qη operates based on the detection result, and the arm (251 rotates,
By adjusting the position of the louver lug, the tension of the strip Qυ is kept constant.

However, when one arm rotates, a flywheel effect force is generated depending on the size of the looper roller (GD, such as 12), and it is not always easy to adjust the position of the looper roller.

Furthermore, when the angle of inclination of the arm α with the horizontal line is θ, the force acting on the load cell (14) is the component force Fta of the vertical load F of the strip circle, etc., as shown in Fig. 1.
, sθ, which varies depending on the value of the inclination angle θ of Fcosθ, so it was difficult to adjust the signal acting on the load cell I to the position of the relouper P (Ia).

The present invention eliminates the drawbacks of the conventional methods as described above, and provides a constant tension to the strip running between rolling mills to prevent excessive tension and loosening of the strip. The purpose of this invention is to provide a continuous looper device that can perform the following steps.

Embodiments of the present invention will be described below with reference to the drawings. Figure 2.3.4.5.6 shows an embodiment of the present invention, in which a strip (1) running between rolling mills (1) is shown. Both ends of the looper roller (3) that conveys the load cell (2) are fixed by bearings (5) equipped with a load meter (4). Only the vertical load Fo of the strip (2) and the looper roller (3) is acting on the load cell (4). The bearing (5) is supported at one end of a vertical looper roller 7 frame (6). Looper four-ra 7 frame, (6) is provided with a rack (7), and a binion (8) is arranged to mesh with the rack (force).The binion (8) has a forward and reverse direction. A bidirectionally rotatable motor (9) is connected to the motor (9), and a position detector a value is attached to the motor (9).Av is a guide roller for guiding the looper reeler 7 frame (6).

Next, an adjustment method for preventing excessive tension and loosening of the strips will be explained.

The signal from the load cell (4) and the signal from the position detector OC are calculated by the tension calculation device a, and the output signal from the tension calculation device α is received by the looper control device α. The output signal from a is transmitted to the motor 0, and is also transmitted to the speed control device (I9).
The signal from the compressor (1) is transmitted to the motor ae to control the speed of the compressor (1).

In addition, as mentioned above, the output signal from the looper control device (line 1) is transmitted to motor I, so the drive of motor I moves the looper roller 7 frame (6) up and down via the rack (7) and pinion (8). It will move.

As the looper roller 7 frame (6) moves up and down, the looper roller (3) also moves up and down.

That is, when the slips (2) are pulled together too much, the looper roller (3) moves downward. On the other hand, if the strip (2) is loose, use the louver ruler (
3) It moves upward until t.

Note that the looper roller 7 is not limited to the above embodiments.
A hydraulic cylinder or other link mechanism may be used to move the frame (6) up and down.

Since the present invention has the friend structure as described above, it has the following effects.

First, since only vertical loads act on the load cell, the load can be measured accurately, and the position of the looper roller can be easily adjusted to maintain a constant tension on the strip. This can prevent tension and loosening of the parts.

Second, since the looper roller moves up and down, it is also easy to adjust the position of the looper roller, and it is possible to maintain a constant tension on the strip, preventing excessive tension or loosening of the strip. can do.

[Brief explanation of drawings]

FIG. 1 is a schematic description of a conventional device, and Section 2.6.4.5.
Fig. 6 shows an embodiment of the present invention, Fig. 2 is a general explanation and manual of the continuous rolling louver device, Fig. 6 is a side view of the continuous rolling louver device, and Fig. 4 is a front view of the continuous rolling louver device. Figure, 5th
The figure is a sectional view taken along line I--I in FIG. 4, and FIG. 6 is a control circuit diagram of the continuous rolling louver device. DESCRIPTION OF SYMBOLS 1... Rolling mill, 2... Strip, 6... Looper roller, 4... Load cell, 5... Bearing, 6... Looper roller rough, 7... Clutch, 8... - Binion, 9...Motor, 10...Position detector. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] In order to prevent the strip rolled by the rolling mill from being excessively stretched or sagging between the rolling mills while running, a device is installed between the rolling mills to maintain a constant tension on the strip. A continuous rolling looper device comprising: a louver roller that conveys the strip, a load meter on which only a vertical load acts, which is provided on a bearing that pivots the louver roller, a vertically movable mechanism that supports the bearing, and the mechanism. 1. A continuous rolling looper device comprising: a drive machine that moves the louver roller up and down by moving the louver roller up and down.