KR100841770B1 - A back-up roll equipment with changable diameter - Google Patents

Abstract

A back-up roll equipment having a changeable diameter is provided to prevent surface defect by adjusting a diameter of the back-up roll equipment corresponding to a scale of a steel sheet such that a desired pressure is maintained in a continuous plating process. A back-up roll equipment having a changeable diameter comprises a cylinder(43), a sensor portion(41), a bearing block(46), sensors(37,38,39,40), a ring block(45), a segment shaft(28) and a back-up roll device. The back-up roll equipment is disposed at a lower part of a plating roll(8). The cylinder is bolted to an upper part of a moving frame(53) by a cylinder bracket. The sensor portion is fixed to an upper part of a coupling connected to a stroke(58) of the cylinder. The bearing block is fixed the moving frame by a bracket. The sensors are fixed to an upper bracket(42) of the bearing block. The ring block passes through the middle of the bearing block to be connected to a motor(50). The segment shaft has a first end connected to a limiter ring(57) of a ring housing(56) by passing through the ring block and a second end connected to a bearing block(19) fixed to the moving frame.

Description

Plating Back-up Roll Device with Outer Diameter Adjusted by Sheet Size {A Back-up Roll Equipment with Changable Diameter}

    1 is a cross-sectional view showing that the pressure (adhesiveness) between the plating roll (8) and the backup roll (9) during the horizontal cell continuous plating operation according to the prior art is inadequate for each thickness of the steel sheet, causing quality defects and various problems.

Figure 2 is a cross-sectional view of the plating back-up roll apparatus according to the present invention

Figure 3a is a cross-sectional view cut portion A of Figure 2 according to the present invention

3B is a cross-sectional view taken along the direction of the arrow B of FIG. 2 according to the present invention;

    Figure 4a is a cross-sectional view showing the state of the outer diameter adjustment backup roll device according to the operation of the cylinder a (43) when the sense stand 41 is located in the sensing sense a (37) in the present invention.

    Figure 4b is a cross-sectional view showing the state of the outer diameter adjustment backup roll device according to the operation of the cylinder a (43) when the sense stand 41 is located in the sense sense b 38 in the present invention.

    Figure 4c is a cross-sectional view showing the state of the outer diameter adjustment backup roll device according to the operation of the cylinder a (43) when the sense stand 41 is located in the sense sense c (39) in the present invention.

    Figure 4d is a cross-sectional view showing the state of the outer diameter adjustment backup roll device according to the operation of the cylinder a (43) when the sense stand 41 is located in the sense sensed 40 in the present invention.

    5 is a cross-sectional view showing an example in which the apparatus of the present invention is used in a horizontal cell plating line.

♠ Explanation of symbols on the main parts of the drawing ♠

One; Steel plate 2; Plating cell 3; Meandering Guide Roll a

4; Meandering guide roll b 5; Dryer 6; Bridal roll

7; Aftertreatment facilities 8; Plating roll 9; Backing Roll

10; Drip pan 11; Return piping 12; Busbar

13; Hydrostatic nozzles 14; Plating electrode (anode) 15; Pick Up Mark

16; Striped mark 17; Shape Defect Mark (Wave)

19; Bearing block b 20; Wiping a 21; Wiring b

22; Bearing shaft 23; Covering 24; Roll Side Covering a

25; Roll segment 26; Roll sleeve 27; Axis framing

28; Segment axis 29; Space a 30; Slide body

31; Slidehead 32; Slide hole a 33; Slide hole b

34; Thread 35; Roll Side Covering b

37; Detecting sensor a 38; Detecting sensor b 39; Sensor c

40; Detecting sensor d 41; Sense vs 42; Bracket a

43; Cylinder a 44; Ring bracket 45; Ring block

46; Bearing block c 47; Pulley a 48; Pulley b

49; Belt 50; Motor b 51; Roll axis

52; Bolt 53; Moving frame 54; Fixed frame

55; Cylinder b 56; Ring housing 57; Limiter

58; Stroke 59; Rail frame 60; Frame

90; Outer Diameter Backing Roll Device

In the present invention, in the horizontal plating (LCC-H) continuous plating apparatus, when the thickness of the steel sheet during the continuous plating operation, the outer diameter of the backup roll device 90 is adjusted by the dimensions of the steel sheet so that the appropriate pressure is maintained by the dimensions The present invention relates to a plating back-up roll apparatus capable of solving surface defects, shape defects, and equipment problems.

The present invention corresponds to a horizontal cell (LCC-H; abbreviation of Lquid Cushion Cell-Horozontal) electroplating line process of steel mill cold rolling process, the horizontal cell electroplating process uses a sulfuric acid bath plating solution and the plating electrode 14 is insoluble It is 1500 ~ 2000mm in length and works with current density of about 200A / dm and current of 50KA per plating cell. It can operate with high current density and easy to produce alloy plating. The electroplating line is a facility for plating the steel plate 1 up and down by supplying a plating solution through the positive pressure nozzle 13 between the steel plate 1 and the plated electrode 14 at intervals of 9 mm. In order to supply the plating current (-) to the steel sheet, a plating roll 8 having a high hardness and a backup roll 9 installed to support the plating roll 8 and the steel sheet 1 are plated by the steel sheet 1. Kising (rolling force: 4 ~ 5kg / cm2) to the roll (8) by working so that the plating surface is beautiful and can produce a good color plated product. However, this plating operation is carried out in succession by several dimensions, so when the continuous plating operation from the thick (厚 物) to the thin material (薄 物) when the lower the work pressure compared to the thick work to pick up the plating roll (8) (15: Pick up occurs, and if it is severe, a tree may be generated, resulting in pickup mark defects and poor surface condition of the plating roll 8, resulting in poor plating surface and color. On the contrary, in the case of continuous plating work from the thin material to the thick material, the pressure of the thickening work is higher than that of the thin material work, so that the pressing damage of the edge of the steel sheet (1) frequently occurs on the backup roll (9). 17) occurs, and the replacement of the backup roll 9 causes the replacement cycle to be fast, which has been a major problem in cost and production. In addition, under the prior art, the operation of checking and adjusting the backing roll (9) kissing pressure by hand has been performed. However, the adjustment work is slightly different for each person, and thus the problem does not stop as described above. In the process of dealing with the problem, such a problem occurred in a considerable amount. In addition, the conventional technology has a number of problems, such as a problem that requires a large number of workers, the difficulty of facility management.

The present invention has been devised to solve the above problems, the present invention in the existing back-up roll (9) located in the plated roll 8 and the steel plate (1) installed in the horizontal cell (LCC-H) When the outer diameter adjustment backup roll device 90 is installed and the thickness changes during continuous plating, the outer diameter of the backup roll device 90 is adjusted for each dimension so that the appropriate pressure is adjusted and maintained for each surface defect, shape defect, and equipment. It is to be able to solve problems.

If this is described in detail, in the case of the plating work in succession by several dimensions, during the post- [1] work (steel plate thickness 1.6mm ~ 2.0mm work) by opening the cylinder b (55) (Back) roll (9) In this case, the kissing reduction force is generally adjusted to be about 4 kg / cm < 2 > and the cylinder a 43 is adjusted so that the sense stand 41 of the device of the present invention is detected by the sense sense a 37. The roll segment 25 is changed by the action, and the outer diameter of the outer diameter adjusting backup roll device 90 is changed to press the steel sheet 1 according to the size (thickness 1.6 mm to 2.0 mm).

The dimensions are changed by humul [2] operation (sheet thickness 1.2mm ~ 1.59mm operation) when there sense table 41 is detected, the sense b (38) action of the cylinder by adjusting a cylinder (43) to be detected in The roll segment 25 is changed to change the outer diameter of the outer diameter adjusting backup roll device 90 so as to press the steel sheet 1 according to dimensions (thickness 1.2 mm to 1.59 mm).

In the case of heavy work (steel plate thickness 0.8mm ~ 1.19) due to the change of dimensions, by adjusting the cylinder a 43 so that the sense stand 41 is sensed by the sensing sense c 39, the roll segment 25 is formed by the action of such a cylinder. Is changed so that the outer diameter adjustment backup roll device 90, the outer diameter is changed to press the steel sheet 1 according to the dimensions (thickness 1.2mm ~ 1.59mm).

In the case of the thin- film operation (steel plate thickness 0.4mm-0.79 mm) due to the change in dimensions, the cylinder a (43) is adjusted so that the sense stand 41 is sensed by the sensing sense d (40). ), The outer diameter adjusting backup roll device 90 is changed so that the steel sheet 1 is pressed to fit the dimensions (thickness 0.4mm-0.79mm) to work.

This prevents pick-up (Pick Up) and the tree (Zinc tree) generation on the plating roll (8), and also prevents the occurrence of crushing damage of the edge portion of the steel sheet (1) on the backup roll (9). It is possible to prevent surface defects such as streaked marks 16, to prevent the plating surface from becoming beautiful and to deteriorate the color, and to prevent costly replacement of the backup roll 9, thereby providing cost reduction and improvement in productivity. The purpose.

In order to achieve the above object, the present invention, in the steel plate plating back-up roll device of the horizontal cell electroplating line, is provided in the lower portion of the plating roll 8 and the steel sheet (1), according to the thickness change of the steel sheet (1) An outer diameter adjustment backup roll device 90 whose outer diameter is adjusted; The outer diameter adjustment backup roll device 90 is supported by the lower portion, characterized in that it comprises a connecting device for adjusting the vertical position.

In addition, the outer diameter adjustment backup roll device 90, the cylinder a (43) is bolted fixed to the upper moving frame 53 by a cylinder bracket; A sense table 41 fixedly connected to an upper portion of the coupling connected to the stroke 58 of the cylinder a 43; A bearing block c (46) fixedly connected to the lower movable frame (53) by a bracket; Detection sensors a, b, c, d (37, 38, 39, 40) fixedly connected to the upper bracket a (42) of the bearing block c (46); A ring block 45 connected to the center of the bearing block c 46 so as to be rotatable by the motor b 50; Segment shaft connected to the limiter ring 57 of the ring housing 56 through the central portion of the ring block 45, the other side is connected to the bearing block b (19) fixed on the moving frame (53) to be rotatable (28); It is fixed to the segment shaft 28, characterized in that it comprises a back-up roll device which is rotated in contact with the upper plated roll 8 and the steel sheet 1 therebetween, and the back-up roll device, A shaft frame ring 27 which surrounds the outside of the segment shaft 28 with the space a 29 interposed therebetween and has a slide hole b 33; A roll segment 25 surrounding the outside of the shaft frame ring 27 and having a guiding hole and a sliding hole a 32; A slide body (30) fixedly connected to the segment shaft (28); A slide head (31) fixedly connected to an end of the slide body (30); It is characterized in that it comprises a roll sleeve 26 surrounding the outside of the roll segment 25 and in contact with the steel sheet (1).

In addition, the connection device unit of the present invention, the device frame 60 is fixedly connected to the floor;

A fixed frame 54 fixedly connected to the device frame 60; A rail frame 59 vertically fixed to both ends of the fixing frame 54 and having a guide rail; A moving frame 53 moving between the rail frames 59 by a guide rail; It is connected to the moving frame 53 and is supported on the floor, characterized in that it comprises a cylinder b (55) for moving the moving frame 53 and the outer diameter adjustment backup roll device 90 up and down together.

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

First, the outer diameter adjustment backup roll device 90 will be described. As shown in FIGS. 2 and 3, the cylinder a 43 in the outer diameter adjustment backup roll device 90 is moved upward by the cylinder bracket. It is fixed to the bolt, the upper end of the coupling coupled to the stroke 58 of the cylinder a (43) is a sense (41) is fixedly connected. A limiter ring 57 connected to the segment shaft 28 is located in the ring housing 56 in which the limiting hole is manufactured, and is fixedly bolted to the coupling connected to the ring housing 56 and the stroke 39. The shaft frame ring 27 with space a 29 is bolted into the inner hole in front of the ring block 45, which is located in the bearing block c 46 and the bracket a (above the bearing block c 46). 42 is fixedly connected, and the sensing senses a, b, c, d (37, 38, 39, 40) are installed. These are respectively installed in a position that can be in contact with the sense base 41, the bearing block c (46) is fixedly connected to the moving frame 53 at the bottom by a bracket, the pulley a behind the ring block (45) (47) is installed and the belt 49 connected thereto is connected to the pulley b (48), the pulley b (48) is connected to the shaft of the motor b (50) and the motor b (50) is a moving frame (53) It is configured to be installed above. The ring block 45 is provided with a bearing and a ring bracket 44, and the segment shaft 28 is located inwardly, which is fixed to the limiter 57 in the ring housing 56 as described above. The segment shaft 28 is located inside the shaft frame ring 27 and the space a 29 provided therein, and one side of the shaft frame frame 27 is provided with a wipe ring b 21. The shaft frame ring 27 has a sliding section of three parts, respectively, and slide holes b 33 are provided in four parts of each part. Through this, each slide body 30 is fixedly connected to the segment shaft 28, the slide head 31 is fixed to the end of each of the slide body (30). Each slide hole b 33 is configured to guide the slide body 30 to move. Further, the slide head 31 is configured to be guided to have the same inclination angle as the slide hole a 32. Each of the four roll segments 25 is provided with respective slide body 30 guiding holes and slide holes a 32 which can be guided to move the slide body 30 and the slide head 31 described above. In addition, both sides of the shaft frame 27 are manufactured with threads 34, and the roll side coverings a, b (24, 35) are respectively bolted and fixed thereto. Each of the roll segments 25 described above is positioned inside the roll side covering a.b (24, 35), and a circular roll sleeve 26 is positioned above the roll segment 25. Both side edges thereof are configured to be connected to the roll sleeve 26 and the respective roll side coverings ab 24 and 35 by bolts 52, and the roll side covering a 24 and the covering 23 are bolted and fixed. Connected. The bearing shaft 22 is connected here, and the wiping ring b 21 is provided here. The bearing shaft 22 is installed in the bearing block b 19 and the bearing block b 19 is fixedly connected to the moving frame 53 by a bracket.

  Next, as shown in FIG. 2 and FIG. 3, the drip pan 10 is located below the outer diameter adjusting backup roll device 90, and the lower part of the drip pan 10 has a hole therein. Return piping 11 is connected. Return piping 11 is configured to be connected to the plating solution supply tank (not shown) through the moving frame 53 and the fixed frame 54, the device frame 60 is fixed to the equipment floor 60 is a rail frame (59) And fixed connection. The rail frame 59 has a moving frame 53 configured to guiding the side of the rail, and a cylinder b 55 is connected to the lower portion of the moving frame 53. Steel plate 1 is located on the upper part of the outer diameter adjusting backup roll device 90, and the roll shaft 51, the plating roll 8, the wiping ring a 20, the collector ring (not shown), and the carbon brush (not shown) are located thereon. ), And a brush holder (not shown) is mounted and the roll shaft 51 is installed in the bearing block.

The operation of the present invention will be described.

When the apparatus of the present invention is started on a push button during continuous plating operation, the cylinder b 55 is opened to close the outer diameter adjustment backup roll device 90, and the keying pressing force is generally The cylinder a 43 is operated to be positioned at the position where the sense stand 41 of the device of the present invention is sensed by the sensing sense d 40.

In the case where the working dimension of the steel sheet passed through the welding part through the plating cell is the thick [1] work (steel plate thickness 1.6mm ~ 2.0mm work), the cylinder (a) can be sensed by the sensor (a) 37. 43) is automatic adjustment work. The action of the cylinder a 43 causes the movement of the segment shaft 28, the slide body (+30), and the slide head 31 connected thereto so that the respective roll segments 25 are repositioned so that FIG. 4A As shown, the outer diameter of the outer diameter adjustment backup roll device 90 is changed to press the steel sheet 1 according to the dimensions (thickness 1.6 mm to 2.0 mm).

If the working dimension of the steel sheet passed through the welded part through the plating cell due to the change in dimensions, the thick [2] work (1.2 mm to 1.59 mm thickness of steel sheet), the sense stand 41 is detected by the sensor b (38). The cylinder a 43 is automatically adjusted. The action of the cylinder a 43 causes movement of the segment shaft 28, the slide body 30, and the slide head 31 connected thereto so that the respective roll segments 25 are repositioned so that the roll segments 25 are repositioned. Likewise, the outer diameter of the outer diameter adjusting backup roll device 90 is changed, and the steel sheet 1 is pressed to fit the dimensions (thickness of 1.2 mm to 1.59 mm).

If the work size of the steel plate passed through the welding part through the plating cell due to the change of the size is heavy work (steel plate thickness 0.8mm ~ 1.19mm work), the cylinder (a) can be detected by the sensor c (39). 43 is automatically adjusted. The action of the cylinder a 43 causes the movement of the segment shaft 28, the slide body 30, and the slide head 31 connected thereto so that the respective roll segments 25 are repositioned so that the roll segments 25 are repositioned. Likewise, the outer diameter of the outer diameter adjusting backup roll device 90 is changed, and the steel sheet 1 is pressed to fit the size (thickness of 0.8 mm to 1.19 mm).

In the case where the working dimension of the steel sheet passed through the welding part through the plating cell due to the change in dimensions is thin ( working of 0.4 mm to 0.8 mm thick), the sensing stand 41 is detected by the sensor d 40 so that the cylinder a ( 43) is automatic adjustment work. The action of the cylinder a 43 causes the movement of the segment shaft 28, the slide body 30, and the slide head 31 connected thereto so that the respective roll segments 25 are repositioned so that the roll segments 25 are repositioned. As described above, the outer diameter of the outer diameter adjusting backup roll device 90 is changed to press the steel sheet 1 according to the size (thickness 0.4 mm to 0.97 mm). When the device of the present invention is stopped, the cylinder b 55 is closed, and the outer diameter adjustment backup roll device 90 is opened to place the devices in the home position.

If the thickness of the plating roll 8 and the steel sheet 1 installed in the horizontal cell (LCC-H), the outer diameter adjusting backup roll device 90 of the present invention is installed in the horizontal cell (LCC-H) and the thickness changes during the continuous plating operation. 90) The outer diameter of the steel sheet is adjusted for each dimension so that a uniform pressure different from each other can be adjusted and maintained to prevent pick-up and pick-up of the plating roll 8 and the tree. By preventing the occurrence of crushing damage of the edge of the steel sheet (1) to prevent the occurrence of surface defects, such as pick-up mark (15), strip line marks (16), the plated surface is beautiful and prevents the color is poor, frequent backup roller (9) By preventing exchanges, cost savings and productivity gains are achieved.

Claims (4)

delete In the apparatus of the horizontal cell electroplating line comprising a plating roll (8), a backup roll (9) device and a connecting device portion for supporting the backup roll (9) device from the bottom, The backup roll apparatus provided in the lower part of the plating roll 8, A cylinder a 43 bolted to the upper portion of the moving frame 53 by a cylinder bracket; A sense table 41 fixedly connected to an upper portion of the coupling connected to the stroke 58 of the cylinder a 43; A bearing block c (46) fixedly connected to the lower movable frame (53) by a bracket; Detection sensors a, b, c, d (37, 38, 39, 40) fixedly connected to the upper bracket a (42) of the bearing block c (46); A ring block 45 connected to the center of the bearing block c 46 so as to be rotatable by the motor b 50; Segment shaft connected to the limiter ring 57 of the ring housing 56 through the central portion of the ring block 45, the other side is connected to the bearing block b (19) fixed on the moving frame (53) to be rotatable (28); Steel sheet, characterized in that the outer diameter adjustment backup roll device 90 is fixed to the segment shaft 28, and configured to include a back-up roll machine that rotates in contact with the upper plating roll 8 and the steel sheet 1 therebetween. Plating backup roll device whose outer diameter is adjusted by dimensions The method of claim 2, wherein the backup roll device, A shaft frame ring 27 which surrounds the outside of the segment shaft 28 with the space a 29 interposed therebetween and has a slide hole b 33; A roll segment 25 surrounding the outside of the shaft frame ring 27 and having a guiding hole and a sliding hole a 32; A slide body (30) fixedly connected to the segment shaft (28); A slide head (31) fixedly connected to an end of the slide body (30); Plating back-up roll apparatus for adjusting the outer diameter for each steel sheet dimension, characterized in that it comprises a roll sleeve 26 surrounding the outside of the roll segment 25 and in contact with the steel sheet (1) The method according to claim 2, The connecting device unit, A device frame 60 fixedly connected to the floor; A fixed frame 54 fixedly connected to the device frame 60; A rail frame 59 vertically fixed to both ends of the fixing frame 54 and having a guide rail; A moving frame 53 moving between the rail frames 59 by a guide rail; Steel plate dimensions, characterized in that it comprises a cylinder b (55) connected to the moving frame (53) and supported on the bottom to move the moving frame (53) and the outer diameter adjustment backup roll device (90) up and down together. Plated back up roll device with adjustable outer diameter

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