KR100885952B1 - Looper-table for integrated management used in the finish mills - Google Patents

Abstract

The present invention is designed to apply the common parts of the tension detection looper table and the tension profile detection looper table used between rolling mills in common, and the finishing rolling process that can guarantee the ease of maintenance and precision of the detection apparatus. The present invention relates to a looper table for an integrated management, which includes a plurality of protruding grating plates 52 and recessed grating plates 53 having one side fixed to the rotating shaft 33 by being alternately positioned inward from both rotating shafts 33. And a crosspiece 54 for fixing through them, an inner fastening portion 55a, 55b, 55c formed on the protruding grating plate 52, and a table outer plate 50a fixed close to the both rotation shafts 33; A fixed looper table 50 including outer fastening portions 51a and 51b respectively formed at 50b); Tension with inner fastening portions 65a, 65b, 65c, 66a, 66b, 66c and outer fastening portions 61a, 61b, 62a, 62b of the same spacing and shape corresponding to the fastening portions of the fixed looper table 50 Provided is an integrated management looper table applied in a finishing rolling process, comprising a detection looper table 61 and a looper split roller table 62 for tension profile detection.

Looper table, tension detection, profile detection, grating, looper roller, split roller

Description

LOOPER-TABLE FOR INTEGRATED MANAGEMENT USED IN THE FINISH MILLS}

1 is a side cross-sectional view showing a looper table installed in a finishing press process;

2 is a plan view showing a looper table installed in a finishing press process;

Figure 3 (a) is a plan view showing a conventional tension detection looper table;
Figure 3 (b) is a cross-sectional view of the looper roller for tension control;

4 is a plan view showing a looper table for detecting a conventional tension profile;

5 is a plan view showing a looper table for integrated management according to the present invention;

6 is a plan view showing a state in which a tension detection looper table is mounted on the integrated management looper table according to the present invention;

7 is a plan view illustrating a state in which a tension profile detection looper table is mounted on the integrated management looper table according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

33: rotation axis 52: protrusion type grating 53: recessed type grating 54: side stand

55a, 55b, 55c: inner fastening part 50a, 50b: table outer plate 51a, 51b: outer fastening part

50: fixed looper table 61: tensioner looper table

62: looper splitting roller table for tension profile detection

The present invention relates to a looper table for integrated management applied in a finishing rolling process, and more particularly, a common part of a tension detection looper table used between shear rolling mills and a tension profile detection looper table used in a post rolling period. It is related to the looper table for integrated management applied in the finishing rolling process that can guarantee the ease of maintenance and the precision of the detection device by designing and applying them in common.

In an effort to improve dimensional and flatness quality over the entire length of the hot rolled sheet, tension / flatness is detected / controlled using a looper table, which is a tension / flatness detection device for finishing rolling.

In general, as shown in Figures 1 to 2, the looper table 24 of the hot rolling mill finishing mill is between the rolling mill stand (30, 31) before and after the work roll (26, 27) perpendicular to the conveying direction of the rolled material Is installed in the drive motor 32 and the shaft 33 is connected to, and installed in the middle of the shaft 33 of the drive motor 32, the stopper 19 extending in the vertical direction is installed and the stopper 19 A shock absorber 23 is provided at one end side, and the drive motor 32, the shaft 33, and the looper table 24 of the looper table 24 are configured to form one axis.

On the other hand, as shown in Figure 2, the looper table 24 is installed so as to rotate up and down at the rolling pass level 22 around the axis, a stripper 29 is provided on one end portion 37 side, the opposite end A side guide 28 is provided on the side, and a looper roller 21 is mounted on the opposite end side to press the rolled material 25.

3A and 3B, a tension detection looper roller 21a for detecting the tension of the strip, which is a rolled material, is integrally fastened to one end side of the looper roller 21 as shown in FIGS. The looper table 24 is operated to detect the tension of the strip, and the tension detection looper roller 21a is coupled to the looper table 24 so that one roller can be rotated. For this purpose, tension is detected / controlled using the load sensor 30 at both ends of the looper roller 21a shaft.

In addition, as shown in FIG. 4, a looper roller 21b for detecting a profile for detecting a tension profile of a strip, which is a rolled material, is integrally fastened to one end side of the looper table 24 so that the looper table can be integrally fastened. (24) is activated to detect the tension profile of the strip, the tension profile detection looper roller (21b) is coupled to the looper table (24) so that a plurality of split rollers can be rotated and installed by loading a load sensor The tension profile of the period is detected to control the flatness of the hot rolled sheet.

More specifically, in the finishing rolling process, in order to control the tension and flatness of the rolling period, first, the shaft bearing housing (not shown) of the looper roller 21a is modified to detect the tension in the shear rolling period. ) Can be used to detect the rolling period tension.

In the post-rolling period, the looper roller 21b is divided into pieces, and a load sensor (not shown) is provided to detect six load signals in the plate width direction.

The load signals detected in this way can control the tension and flatness applied to the hot rolled sheet using a rolling parameter in the tension / flatness control system.

Conventionally, the tension detection looper table 24a and the tension profile detection looper table 24b are dualized and managed, resulting in a decrease in productivity and an increase in maintenance costs due to poor maintenance.

As a tension detection device for rolling periods having such a problem, there is a tension detection device disclosed in Korean Patent Application No. 1998-56712 and Utility Model No. 1998-25795, and as a post-rolling period flatness detection device, Korean Patent Application No. Flatness detection device (Hermann J. Kopineck, "Rolling of hot strips with controlled Tension and Flatness", Hot strip profile and flatness seminar, Nov. 2) 3, 1988, Pittsburg Penssylvania) and British Patent No. 21102, there is an apparatus for detecting the width load distribution between the finishing rolling mill and the winder.

That is, the tension detection looper table 24a and the tension profile detection looper table 24b presented in the above-mentioned known arts are shown in FIG. 1 and FIG. In the form of 1 and the post-stage rolling period, it is dualized and managed by the form of FIG.

That is, conventionally, in the apparatus for detecting the rolling period tension and the plate width direction tension profile in the hot finishing rolling process, the tension detection looper terrible and the tension profile looper table are installed and operated in the front and rear rolling periods, respectively. This method of operation has been difficult to maintain due to the trouble of operating two facilities and the inability to handle the facilities, which degrades the accuracy and reliability of the detection device.

In addition, since the tension detection looper table 24a and the tension profile detection looper table 24b are separately developed, used, and managed, the wearer of the looper roller or the one side table on which the looper roller is mounted due to this application problem. In case of breakage of the looper table, the entire looper table is removed from the rotating shaft, which leads to a decrease in productivity and an increase in maintenance costs due to a decrease in ease of maintenance.

In order to solve the above problems, the present invention is designed to use in common the common part of the tension detection looper table used in the shear rolling period and the tension profile detection looper table used in the post rolling period, respectively In order to provide an integrated control looper table applied in the finishing rolling process that can guarantee the ease of maintenance and precision of the detection device by developing and applying the tension detection looper roller and the tension profile detection looper roller during the post rolling period. There is this.

In order to achieve the above object, the present invention is a looper table installed between the rolling mill of the hot finishing rolling process to detect the tension and the profile of the strip, the one side portion is fixed to the rotating shaft by alternately located inward from both rotating shafts A fixed looper comprising a plurality of protruding grating plates and recessed grating boards, a crosspiece for penetrating through them, an inner fastening part formed on the protruding grating plate, and an outer fastening part formed on each of the table outer plates fixed to the both sides of the rotating shaft. Table; And a loop detection roller table for tension detection and a looper split roller table for tension profile detection in which inner and outer fastening portions having the same interval and shape are formed so as to correspond to the inner and outer fastening portions of the fixed looper table. Provides looper table for integrated management applied in finishing rolling process.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

5 is a plan view illustrating a looper table for integrated management according to the present invention, FIG. 6 is a plan view showing a state in which a looper table for tension detection is mounted on the looper table for integrated management according to the present invention, and FIG. A plan view showing a state in which a looper table for detecting a tension profile is mounted on an integrated management looper table according to the present invention.

As shown in FIG. 5, the fixed looper table 50 constituting the integrated management looper table according to the present invention includes a plurality of protruding grating plates 52 and a plurality of rotating shafts 33 fixedly rotatable between rolling mills. Two recessed grating plates 53 are fixed.

In the case of the conventional looper table, as shown in FIGS. 3 to 4, the plurality of protruding gratings 42 and 42a and the plurality of recessed gratings 43 and 43a have upper and lower sides about the rotation axis 33. Were formed symmetrically with each other.

However, in the present invention, the plurality of protruding grating plates 52 and the plurality of recessed grating plates 53 are each symmetrically symmetrical with each other on the rotating shaft 33 rotatably mounted between the rolling mills. The central portion of the is not fixed, it is formed in a form extending in any one direction about the rotation axis (33).

That is, the tension detection looper roller table 61 and the tension profile detection looper split roller table 62, which will be described later, are formed to extend in one direction about the rotation shaft 33 in order to secure a space to be mounted on the entire looper table. Will be.

As described above, the plurality of protruding grating plates 52 and the plurality of recessed grating plates 53 fixed to the rotation shaft 33 are fixed by cross bars 54 respectively penetrating them, and the cross bars 54 are respective grating plates. The lattice plates 52 and 53 are fixed by penetrating through the 52 and 53 and fixed to the table outer plates 50a and 50b formed on both outermost sides of the looper table.

As described above, a tension detection looper roller table 61, which will be described later, is attached to a predetermined number of protruding grating plates 52 located inside the center among a plurality of grating plates 52 and 53 that are firmly inserted and fixed to the rotation shaft 33. And inner fastening portions 55a, 55b, and 55c to which the looper split roller table 62 for tension profile detection can be fixed,

In the present invention, the inner fastening portion (55a, 55b, 55c) is a nut hole process that can be fastened to the bolt, but the inner fastening portion (55a, 55b, 55c) is any means that can be firmly fixed to the fixed object It is possible.

In addition, according to the present invention, the outer fastening portions 51a and 51b respectively formed on the table outer plates 50a and 50b fixed to the both side rotation shafts 33 are formed, and thus the tension detection looper table 61 to be described later. And the outer fastening portions 61a, 61b, 62a, and 62b of the looper split roller table 62 for tension profile detection are fixed in contact with each other.

Fixed looper table 50 according to the present invention configured as described above is fixed so as to be rotatable between the rolling mill, the rotating shaft 33 is axially coupled with the drive motor 32, as shown in FIG. You will get

As described above, the looper table 50 for tension detection and the looper split roller table 62 for tension profile detection are fastened to the looper table 50 according to the present invention fixed between the rolling mills so as to be rotatable.

That is, the tension detection looper roller table 61 may be coupled to one side of the tension detection looper roller 21a such that one roller is rotatable.

The other side of the tension detection looper roller table 61 is connected to the inner fastening portions 55a, 55b, 55c and the table outer plate 50a, 50b formed on the protruding grating plate 52 of the looper table 50 according to the present invention. Inner fastening portions 65a, 65b and 65c and outer fastening portions 61a and 61b having the same spacing and shape are formed so as to correspond to the outer fastening portions 51a and 51b respectively formed.

In addition, the looper table 50 for tension profile detection may be fastened to the looper table 50 according to the present invention.

That is, the tension profile detection looper split roller table 62 may be coupled to one side such that the profile detection split roller 21b is rotatable.

The other side of the loop profile split roller table 62 for detecting the tension profile is an inner fastening portion 55a, 55b, 55c and a table outer plate 50a, which are formed on the protruding grating plate 52 of the looper table 50 according to the present invention. Inner fastening portions 66a, 66b, 66c and outer fastening portions 62a and 62b having the same spacing and shape are formed so as to correspond to the outer fastening portions 51a and 51b respectively formed in 50b.

Referring to the proposed principle and operation of the integrated management looper table applied in the finishing rolling process according to the present invention configured as described above are as follows.

That is, in the integrated management looper table applied in the finishing rolling process according to the present invention, as shown in FIG. 5, the looper table for detection in which the tension detection roller is mounted on the interface of the looper table 50 is installed. (61) and the tension profile detecting looper splitting roller table 62 equipped with the split roller for tension profile detection are designed through structural design and stress distribution analysis for the stresses that can be received during the up or down motion, respectively. Centralized looper table management.

In addition, as shown in Figures 6 to 7, the conventional tension detection and tension profile detection looper table was designed and operated to be coupled to the fixed looper table 50 for integrated management according to the present invention.

Thus, if the fixed looper table 50 for integrated management according to the present invention shown in FIG. 5 is used, the centralization and control of the looper table facility management 61 and 62 may be easily managed.

In addition, since the detection tables 61 and 62 are easy to handle as shown in Figs. 6 and 7, the detection tables 61 and 62 can be removed and repaired within a short time, and can be easily tightened even after the repair is completed. Can be.

In addition, the fixed looper table 50 for integrated management according to the present invention is basically designed in consideration of the force acting on the looper, as shown in Figure 5, the detection table (61, 62) in order to extend the life by wear ) And the detection tables 61 and 62 are interchangeable with the gratings 52a, 53a, 52b, and 53b.

In addition, it is easy to calibrate the load sensor (not shown) that detects the tension and tension profile, so it is easy to manage the accuracy of the sensor, and this effect can improve the basic sensor detection accuracy, and the time required for loop table maintenance Can be minimized.

As described above, by using the integrated management looper table applied in the finishing rolling process according to the present invention, it was possible to alleviate the poor serviceability that appeared in the existing known technology, the periodic maintenance of the tension / tension profile detection device By detecting and using a stable and correct tension / tension profile for the control, it contributed not only to the performance improvement of the control system but also to the quality improvement of the dimensions and flatness of the hot rolled sheet.

In addition, by dividing the existing looper roll around the looper roll drive shaft, it is possible to simultaneously install / extract the device capable of the existing looper roll function (tension detection function) and the device capable of the split roll function (tension profile detection function). By installing the integrated looper table, the existing looper table can be dualized into the existing looper roll and the split roll table to be integrated and managed, while replacing the device that functions as the tension detection function and the tension profile function. Since the time to be significantly reduced, there is an effect that can increase productivity due to the increase in ease of maintenance and reducing the maintenance time.

Claims (1)

In the looper table installed between the rolling mill of the hot finishing rolling process to detect the tension and profile of the strip, A plurality of protruding grating boards 52 and recessed grating boards 53 which are alternately positioned from both rotation shafts 33 to the inside and fixed to one side of the rotation shaft 33, and a crosspiece 54 fixed through them; Inner fastening portions 55a, 55b and 55c formed on the protruding grating plate 52 and outer fastening portions 51a and 51b respectively formed on the table outer plates 50a and 50b which are fixed to the both side rotation shafts 33. A fixed looper table (50) consisting of; Inner fastening portions 65a, 65b, 65c, 66a, 66b, 66c of the same spacing and shape to correspond to the inner fastening portions 55a, 55b, 55c and outer fastening portions 51a, 51b of the fixed looper table 50. And a looper roller table 61 for tension detection and a looper split roller table 62 for tension profile detection formed with outer fastening portions 61a, 61b, 62a, and 62b. Integrated looper table.

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