KR20040040881A - Anti Cross-Buckle Apparatus with initial strip passing support function in a mill - Google Patents

Abstract

PURPOSE: An anti-cross buckle apparatus of rolling facility having threading function is provided to prevent damage of an anti-cross buckle roll arranged at the output side of final stand of rolling mill when performing threading operation by supporting the top end of strip threaded. CONSTITUTION: In an anti-cross buckle apparatus of rolling mill comprising a base(110) positioned at the output side of rolling mill stand and rotated up and down, and an anti-cross buckle roll(130) rotationally mounted on the base, the anti-cross buckle apparatus comprises an arm(44) vertically rotationally mounted on the base; a driving motor(32) for rotating the arm; first guiding roll(10) which is rotationally mounted on the arm, and on a plurality of points of a length direction of which magnets(12) for generating magnetism are formed continuously and circumferentially; second guiding roll(20) which is rotationally mounted on the base in such a way that the second guiding roll is in rear of the anti-cross buckle roll for a path of strip, and on a plurality of points of a length direction of which magnets(22) for generating magnetism are formed continuously and circumferentially; and a driving motor(60) for rotating the first guiding roll and the second guiding roll.

Description

Anti Cross-Buckle Apparatus with initial strip passing support function in a mill}

The present invention relates to an anti-crossbuckle device of a rolling mill, and more particularly, to an anti-crossbuckle device of a rolling mill having a mailing function to support a steel sheet so that the anti-crossbuckle roll is not damaged.

In general, the tempered rolling equipment of the steel sheet has an anti-crossbuckle device installed at the exit side of the final stand, and the anti-crossbuckle device controls the cross-buckle of the wavy pattern formed on the steel sheet discharged from the final stand and supplies it to the correction line. Thereby plays a large role in improving the quality of the steel sheet.

The anti-crossbuckle device 100 according to the prior art is installed at the exit side of the final stand 200 having a pair of work rolls 210 and a pair of backup rolls 220 as schematically shown in FIG. The anti-crossbuckle device 100 includes a base 110 for elevating up and down, a cylinder 120 for elevating the base 110 up and down, and a base installed at an exit of the stand 200 to move up and down. It has the anti-crossbuckle roll 130 attached to 110, and the table-shaped board | substrate support plate 140 provided in the back of the said anti-crossbuckle roll 130 with respect to the advancing direction of the steel plate S.

That is, while the anti-crossbuckle roll 130 is moved up and down by the driving of the cylinder 120 to adjust the cross-buckle of the wavy pattern formed in the steel sheet (S) discharged from the stand 200.

However, the conventional anti-crossbuckle device 100 is positioned such that the anti-crossbuckle roll 130 is at the same height as the lower work roll 210 by driving the cylinder 120, the upper and lower ends of the final stand 200 When the work roll 210 is opened and is carried out during a mailing operation, in the case of an ultra-thin steel sheet having a thickness of 0.3 mm or less, the tip of the steel sheet S 'is bent downward to collide with the anti-crossbuckle roll 130. In the state as shown in Fig. 2 (a) to be folded, there is a problem that the plate is not performed properly, and in the case of a thick material having a thickness of 0.5mm or more, the tip of the steel sheet (S ") and the anti-crossbuckle roll ( When 130 is collided and causes scratches on the outer surface of the anti-crossbuckle roll 130 and at the same time controlling the crossbuckle of the steel sheet by using the anti-crossbuckle roll 130 having such scratches, the steel sheet is damaged by the scratch. Of On the surface it causes a problem in that defects caused irregularities.

In addition, when foreign matter is deposited on the surface of the anti-crossbuckle roll 130 located below the steel sheet S, it is difficult to clean the foreign matter. When the equipment is stopped and the foreign matter is cleaned, productivity is reduced. In the case of cleaning the foreign matter while operating the equipment normally, the worker was exposed to the risk of safety accident.

The present invention is to solve the above-mentioned conventional problems, it is possible to support the tip of the sheet steel sheet so that the anti-crossbuckle roll disposed on the exit side of the final stand of the rolling equipment is not damaged when the mailing operation is performed, An object of the present invention is to provide an anti-crossbuckle device for a rolling mill having a mailing function.

1 is a perspective view of the overall appearance of the anti-crossbuckle device of a rolling mill according to the prior art;

2 (a) and 2 (b) are diagrams showing problems of the prior art;

3 is an external perspective view of the anti-crossbuckle device according to the present invention as a whole;

4 is an exploded perspective view of FIG. 3;

5 is an exploded perspective view of the cleaning part of the present invention;

6 is an exploded perspective view of the main portion of FIG. 5;

7A and 7B are explanatory views of the operation when the anti-crossbuckle operation by the apparatus of the present invention is performed;

8A and 8B are explanatory views of the operation when a mail order operation by the apparatus of the present invention is performed.

※ Explanation of symbols about main part of drawing ※

10: first guide roll 12, 22: magnetic

20: second guide roll 30: rotation axis

32: drive motor 34: gauge instructions

36 gauge 40 connector

44: arm 50: cleaning section

52: sliding support 54: slider

54b, 58a: spring 56: idle roll

59: scraper 60: drive motor

110: base 130: anti-crossbuckle roll

210: workroll

As a technical configuration for achieving the above object, the present invention is an anti-crossbuckle of a rolling equipment having a base which is located on the exit side of the rolling stand and rotated up and down, and an anti-crossbuckle roll rotatably mounted on the base. An apparatus comprising: an arm mounted to the base so as to be rotatable up and down, a drive motor to rotate the arm, and a magnet mounted rotatably to the arm and continuously generating in a circumferential direction at a plurality of locations in the longitudinal direction to generate magnetic force. A second guide roll having a first guide roll and a magnetic body rotatably mounted to the base so as to be rearward of the anti-crossbuckle roll with respect to the path of the steel plate and continuously generating in a circumferential direction at a plurality of places in the longitudinal direction; And a driving motor for rotating the guide roll and the first guide roll and the second guide roll. By providing the anti-crossbuckle device of the rolling equipment having a mailing function.

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

3 is an external perspective view of the anti-crossbuckle device 100 according to the present invention, and the same reference numerals as those of FIG. 1 are used for components having a structure similar to that of the conventional anti-crossbuckle device 100 shown in FIG. The detailed description thereof will be omitted.

That is, both ends of the anti-crossbuckle roll 130 are mounted on the base 110, which is lifted up and down by the cylinder, so that the anti-crossbuckle roll 130 is rolled up and down by driving the cylinder. The approximate configuration of adjusting the cross buckle in the form of a wave pattern formed on the steel sheet discharged from the final stand of the installation is similar to that of the prior art.

The anti-crossbuckle device 1 of the present invention has a first guide roll 10 and a second guide roll 20 parallel to the anti-crossbuckle roll 130.

The first guide roll 10 and the second guide roll 20 has a axial shape of a predetermined radius having a length longer than the width of the steel sheet, and at a predetermined position, preferably at the central portion of the steel sheet and at both edge portions of the steel sheet. Bands of magnetic strips 12 and 22 continuous in the circumferential direction are formed at predetermined positions, respectively. Here, the magnetic 12, 22 is a permanent magnet that always generates a magnetic force, may be composed of an electromagnet that generates a magnetic force only when necessary by the supply of a current.

The first guide roll 10 and the second guide roll 20 are mounted on the base 110 to enable rotation in the axial direction.

First, the base 110 is provided with a rotating shaft 30 parallel to the anti-crossbuckle roll 130 and mounted below the anti-crossbuckle roll 130 so as to be able to rotate in an axial direction. 30 is rotationally driven by the drive motor 32.

In addition, a gauge guide 34 is provided at one side of the rotating shaft 30 to rotate together when the rotating shaft 30 is rotated, and the gauge 36 engraved with the predetermined intervals is integrally formed on the base 110. By forming it is configured to be able to check the rotational state of the rotary shaft 30 by the scale of the gauge 36 indicated by the gauge guide 34.

In addition, a gear 38 having a conventional shape having a thread formed on an outer surface thereof is fixedly installed at both ends of the rotation shaft 30, and the gear 38 has a female thread 42 formed on an inner surface of the connector 40. And are coupled to each other, and the connectors 40 are fixedly provided with arms 44 formed to be elongated in the radial direction.

Both ends of the first guide roll 10 are mounted to the end of the arm 44 so as to be rotatable in the axial direction, respectively, and the gauge guide 34 is integrally fixed to the connector 40.

In addition, the connector 40 is provided with a cleaning part 50 which is in close contact with the surface of the anti-crossbuckle roll 130 to scrape and remove foreign substances attached to the surface of the anti-crossbuckle roll 130. do.

The cleaning unit 50 is a hollow pipe-shaped sliding support 52 and the sliding support that is fixed to the connector 40 via the bracket 51, respectively, as shown in more detail in Figures 5 and 6, Slider 54 is fitted to the hollow portion of the earth 52 to be slidably, and provided with a stopper 54a at one end thereof to prevent exit from the sliding support 52, and the other side of the slider 54 On the end of the roller 56 is mounted so as to be idling through the clevis-type connector 57, the scraper receiver 58 is fixed to both ends of the connector 57, and the scraper receiver 58 And a scraper 59 accommodated to slide in a direction parallel to the sliding direction of the slider 54.

In the slider 54, a spring 54b is mounted to provide an elastic force in a direction in which the sliding support 52 and the connector 57 are separated from each other, and the scraper 59 accommodated in the scraper receiver 58 is It is elastically supported by the spring 58a to receive elastic force at the end, that is, the portion located in the same direction as the idle roll 56. At this time, the scraper 59 should be configured so as not to escape from the scraper receiver (58).

The first guide roll 10 is slightly compared to the anti-crossbuckle roll 130 between the anti-crossbuckle roll 130 and the lower work roll of the final stand when the rotation shaft 30 is rotated a predetermined angle in one direction. The scraper 59 is positioned higher than the anti-crossbuckle roll 130 when the rotary shaft 30 is rotated by a predetermined angle in the opposite direction. At the same time, the end of the scraper 59 is installed to be in close contact with the lower surface of the anti-crossbuckle roll 130.

In addition, the second guide roll 20 is located slightly rearward than the anti-crossbuckle roll 130 with respect to the advancing direction of the steel sheet, and in detail, the anti-crossbuckle roll 130 is rotated by rotating the base 110. When controlling the crossbuckle of the steel sheet by raising, the position of the second guide roll 20 is set at a slightly lower position than the anti-crossbuckle roll 130, and the anti-crossbuckle roll 130 is slightly lowered to carry out a mailing operation. When this is performed, the position of the second guide roll 20 is set to be slightly higher than the anti-crossbuckle roll 130.

In addition, the first guide roll 10 and the second guide roll 20 are driven to rotate by a drive motor 60, one end of the second guide roll 10 and the second guide roll 20 The sprockets 11 and 21 are fixedly installed at one end thereof, and the sprockets 11 and 21 are respectively chains 63 to sprockets 61 and 62 having different diameters installed on the rotation shafts of the drive motor 60. 64 is connected to provide rotational power. In this case, when the driving motor 60 is driven to rotate, the linear velocity with respect to the surface of the second guide roll 20 is set slightly larger than the linear velocity with respect to the surface of the first guide roll 10.

The operation of the present invention will be described below.

The apparatus of the present invention can be distinguished when the anti-crossbuckle operation is performed and when the mail order operation is performed, and the operation can be described.

First, when the anti-crossbuckle operation is performed, the first guide roll 10 is far from the traveling path of the steel sheet by the rotational drive of the drive motor 32, as shown in Figure 7 (a) and (b). It is lowered to be positioned apart, in this case, in contrast to the first guide roll 10, the scraper 59 is maintained in close contact with the lower surface of the anti-crossbuckle roll 130 of the anti-crossbuckle roll 130 Scrape off any foreign matter adhering to the surface. Of course, such a scraper 59 is in close contact with the anti-crossbuckle roll 130 by an appropriate pressure by the springs 54b and 58a.

Next, when the mailing operation is performed, as shown in FIGS. 8A and 8B, the first guide roll 10 is rotated of the anti-crossbuckle roll 130 by rotational driving of the drive motor 32. The scraper 59 is moved in a direction falling from the bottom surface of the anti-crossbuckle roll 130 as opposed to the first guide roll 10, in a raised state so as to protrude upward more than the upper end.

Therefore, the steel sheet S discharged from the work roll 210 may be plated without being in contact with the anti-crossbuckle roll 130 by the first guide roll 10 and the second guide roll 20, and in particular, The first guide roll 10 receives the steel sheet (S) at a position close to the work roll 210 and pushes it toward the second guide roll 20, so that the mailing operation in all cases of the thin plate and the thick plate can be smoothly performed. will be.

According to the anti-crossbuckle device of the rolling mill having a mailing function according to the present invention as described above, when the mailing operation of the steel sheet passing through the final stand of the rolling mill is performed, the anti-crossbuckle in front and rear of the anti-crossbuckle roll The steel plate is plated without contacting the anti-crossbuckle roll by the first guide roll and the second guide roll, which are located in the upper side than the buckle roll and are rotated and driven, and the scraper is anti-cross when the anti-crossbuckle operation is performed. By removing the foreign matter in close contact with the surface of the buckle roll has an excellent effect on improving the quality of the steel sheet.

Claims (3)

In the anti-crossbuckle device of the rolling equipment having a base 110 which is located on the exit side of the rolling stand and rotated up and down, and an anti-crossbuckle roll 130 rotatably mounted to the base 110, An arm 44 mounted on the base 110 so as to be rotatable up and down; A drive motor 32 for rotating the arm 44, A first guide roll (10) rotatably mounted on the arm (44) and having a magnetic (12) that is continuous in the circumferential direction and generates a magnetic force in a plurality of places in the longitudinal direction; A magnetic member (22) rotatably mounted to the base (110) so as to be behind the anti-crossbuckle roll (130) with respect to the path of the steel plate, and having a magnetic portion (22) for generating a magnetic force in a circumferential direction at a plurality of places in the longitudinal direction; 2 guide rolls 20, Anti-crossbuckle device of the rolling equipment having a plate function, characterized in that it comprises a drive motor (60) for rotating the first guide roll (10) and the second guide roll (20). According to claim 1, Scraper 58 is rotatably mounted to the arm 44 and in close contact with the surface of the anti-crossbuckle roll 130 in conjunction with the first guide roll 10 is further included. An anti-crossbuckle device for a rolling mill having a mailing function. The anti-crossbuckle device of claim 1, wherein the rotational speed of the second guide roll (20) is set faster than the rotational speed of the first guide roll (10).