KR100797299B1 - A coater roll for preventing edge mark on the strip - Google Patents

Abstract

The present invention relates to a coater roll capable of preventing edge marks.

The present invention comprises a rubber part 12 which is in contact with the outer circumferential surface of the plated steel sheet, and a roll part 10 which is rotated in one direction by the first motor 31, which is made of a steel bar 11 integrally mounted on the outer surface thereof. The first spindle 31a of the first motor 31 and the second spindle 32a of the second motor 32 are guided through the guide parts 20 disposed in the inner holes of the left and right ends of the steel bar 11. Assemble to flow left and right respectively, and equipped with a working roll 35 for receiving the rotational force of the iron shell 11 and the reference roll 36 in contact with the outer circumferential surface in the inner space of the iron shell 11 to the roll portion ( A moving unit 30 which causes 10 to flow left and right with respect to the first and second main shafts 31a and 32a; The eccentricity of the operation roll 35 is moved by moving the axis center of the operation roll 35 left and right by the power transmission unit 52 for converting the rotational force of the drive shaft 51 of the second motor 32 into a linear motion. Including the eccentric adjustment unit 50 for adjusting, by periodically moving the coater roll left and right by a certain amount during the coating operation to prevent the occurrence of the edge mark due to the intensive contact between the edge portion of the plated steel sheet and the rubber portion to use the coater roll It can extend the service life and produce coated steel sheet with excellent coating quality, and the width control of coated steel sheet is easy.

Coater rolls, edge marks, shells, eccentrics, rotating plates, working rolls

Description

ACOATER ROLL FOR PREVENTING EDGE MARK ON THE STRIP}

1 is a perspective view showing a coater roll facility for a general plated steel sheet,

Figure 2 is a horizontal cross-sectional view showing an edge mark prevention coater roll according to the present invention,

Figure 3 (a) (b) is a vertical cross-sectional view showing an edge mark prevention coater roll according to the present invention,

Figure 4 is a perspective view of the moving portion and the eccentric adjustment unit employed in the edge mark prevention coater roll according to the present invention.

 Explanation of symbols on the main parts of the drawings

11 .... shelter 12 .... rubber parts

31,32 ... 1,2 motors 31a, 32a ... 1, 2 main shafts

34 .... shifting block 34a, 34b ... upper and lower fixed shaft

35 .... Operation Roll 35a .... Square Guide

36 .... Reference rolls 37a, 37b ... 1st, guide bar

38a, 38b ... 1st and 2nd rotating plate 51 .... drive shaft

53 .... Drive gear 53a, 53b ... driven gear

55a .... sensing plate 55b .... sensor member

The present invention relates to a coater roll that can prevent the edge mark, and more particularly, intensive contact between the edge portion and the rubber portion of the plated steel sheet by periodically moving left and right by a predetermined amount during the operation of coating the organic solution on the plated steel sheet It can prolong the service life of the coater roll by preventing the occurrence of edge marks, and it is possible to produce coated steel sheet products with excellent coating quality due to the beautiful coating surface. It is about.

In general, organic coating is performed on the surface of the plated steel sheet in order to improve corrosion resistance in areas where chemical conversion treatment and electrodeposition coating are difficult in the plated steel sheets used for home appliances and automobiles. Such organic coating operations are illustrated in FIG. 1. Likewise, the drip pan 8 contains the resinous fingerprint and the organic coating solution, and the pick-up roll 7, the transfer roll 6 and the cotter roll 5 are continuously in surface contact with each other at a constant pressure, The resinous fingerprint and the organic coating solution transferred to the coater roll 5 through the pick-up roll 7 in which the body part is contained in the drip pan 8 and the transfer roll 6 in contact therewith are coated with the coater roll 5. ) And is coated on the surface of the plated steel sheet passing between the backing roll (4).

In this coating process, the plated steel sheets having different steel plate widths pass between the backing rolls 4 and the coater rolls 5, and the edge mark 9 of the rubber portion of the urethane rubber material constituting the outer shell of the coater rolls 5 ) Is severely generated, and when the plating operation is switched from narrow to wide, uncoated portions are generated on the wide surface of the plated steel sheet by the edge mark 9, thereby degrading the quality of the plated steel sheet and the coater roll (5). On the other hand, the service life of the steel sheet was shortened, and the material width of the plated steel sheet had to be managed separately.

In FIG. 1, reference numeral 3 denotes a refraction roll, and 2 denotes a welding part connecting the plated steel sheets, and 5a, 6a, and 7a denote motor members for rotating and driving the backing roll, the transfer roll, and the pickup roll.

Therefore, the present invention has been proposed to solve the conventional problems as described above, the object of which is to move the left and right sides of the coated steel sheet periodically by a predetermined amount during the operation of coating the organic solution on the plated steel sheet and It can prolong the service life of coater roll by preventing the occurrence of edge mark due to intensive contact of the coating, and can produce coated steel sheet products with excellent coating quality due to the beautiful coating surface, and easy to manage the width of coated steel sheet. It is intended to provide a protective coater roll.

As a technical configuration for achieving the above object, the present invention,

In the coater roll coating the organic solution on the surface of the plated steel sheet,

A roll part made of a rubber part in contact with an outer circumferential surface of the plated steel sheet, and a steel bar integrally mounted on the outer surface thereof, and rotating in one direction by a first motor;

The first and second shafts of the first motor and the second motor assembly of the left and right both sides through the guide portion arranged in the inner hole of the steel bar as possible to assemble and move each other, the operation of the eccentric rotation to receive the rotational force of the steel shell A moving part which has a roll and a reference roll in contact with an outer circumferential surface thereof in the inner space of the iron shell and moves the roll part left and right with respect to the first and second main axes;

Edge shift prevention for adjusting the eccentricity of the operation roll by moving the axis center of the operation roll by the power transmission unit for converting the rotational force of the drive shaft of the second motor to linear movement By preparing a cotter roll.

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

Figure 2 is a horizontal cross-sectional view showing an edge mark prevention coater roll according to the present invention, Figure 3 (a) (b) is a vertical cross-sectional view showing an edge mark prevention coater roll according to the present invention, Figure 4 It is a perspective view showing the moving part and the eccentric adjustment unit employed in the anti-marker coater roll according to.

2 and 4, the coater roll 1 of the present invention is disposed between the backing roll 4 and the transfer roll 6 and coated with the steel sheet edge during the operation of coating the organic solution on the surface of the plated steel sheet. In order to prevent the edge mark due to intensive contact periodically left and right flow, such a coater roll 1 is composed of a roll portion 10, a moving portion 30 and the eccentric adjustment unit 50 and the like.

That is, the roll part 10 is composed of a rubber part 12 of a rubber material for performing an organic solution coating operation in contact with the surface of the plated steel sheet and a cylindrical steel shell 11 integrally mounted on the outer surface thereof, The inner hole of the shell 11 is formed with an inner diameter portion to form a step with different inner diameter sizes to accommodate the moving unit 30 and the eccentric adjustment unit 50.

In addition, the moving part 30 that enables the left and right flow of the roll part 10 includes a first main shaft 31a of the first motor 31 disposed in one inner hole 11a of the shell 11, The second spindle 32a of the second motor 32 disposed in the other inner hole 11b of the steel shell 11 is guided through the guide part 20 disposed in the inner balls 11a and 11b. To assemble each other so that they can flow left and right.

Here, the guide portion 20 is at least two guide grooves 21 are formed recessed in the longitudinal direction on the outer circumferential surface of the first and second main shafts (31a, 32a) and the inner hole (11a) (11b) A guide roll 23 rotatably assembled to a rotation shaft 24 of at least two roll brackets 22 fixedly installed as a bolt member 22a at the guide groove 21 in the guide groove 21. Place them in a cloud-movable manner. Accordingly, the iron shell 11 can flow left and right with respect to the first and second main shafts 31a and 32a.

The guide roll 23 is inserted into the guide groove 21 recessed in the outer circumferential surface of the first and second main shafts 31a and 32a at an interval of 90 ° with the center of the shaft as the center, thereby providing the first motor. The first and second main shafts 31a and 32a of the first and second main shafts 31a and 32a rotatably supported by the bearing blocks 33a and 33b are transmitted by transmitting the rotational driving force of the 31 to the steel shell 11 and rotating them in one direction. Type shaft member.

In addition, a plurality of operation rolls 35 and circumferential surfaces of which are eccentrically rotated by receiving the rotational force of the iron shell 11 in the inner space of the iron shell 11 which is rotated by receiving the rotational driving force of the first motor 31. A plurality of reference rolls 36 in contact with each other are provided and configured.

The actuating roll 35 has a movable block 35b which is assembled to be slidably moved to the guide jaw of the square guide 35a, and the movable block 35b is the first and second main shafts 31a and 32a. The shifting block 34 fixedly installed as the key member 34d on the outer circumferential surface of the hollow first and second guide bars 37a and 37b respectively inserted into the inner holes of the bearings 31b and 32b, respectively. The first and second rotary plates 38a and 38b are rotatably assembled at the ends of the upper and lower shafts 34a and 34b, and are rotatably driven together with the steel bar 11 on the outer surface of the operation roll 35. ) A plurality of circular grooves (38c) mounted at regular intervals in the circumferential direction to form a plurality of recessed circular grooves (35c) at regular intervals in the circumferential direction so as to engage with each other, while operating rolls (35) facing each other The roll case 39 in which a plurality of horizontal bars 39a are assembled in a rectangular shape is disposed on the roll case 39 and is rotatably mounted on the vertical bars 39b of the roll case 39. The outer surface of the lip reference roll 36 is configured to interview the outer peripheral surface of the operation roll (35).

Here, the second rotating plate 38b is fixed to the fixed plate 38 which is fixedly installed as a bolt 38e in the inner hole of the shell 11, and formed on the first and second rotating plates 38a and 38b. Since the interval between the circular sphere 38c and the circular groove 35c formed on the outer surface of the operation roll 35 are identically configured, the first and second circular grooves 38c are rotated in the same direction together with the rotation of the steel bar 11. The operation roll 35 is also rotated by the amount of rotation of the first and second rotation plates 38a and 38b, and the upper and lower fixed shafts 34a and 34b are disposed on the square guides 35a of the operation roll 35. The operating roll 35 is eccentrically rotated by the amount of eccentricity centered on the roll center.

On the other hand, the eccentric adjustment unit 50 for adjusting the amount of eccentricity of the operation roll 35 converts the rotational force of the drive shaft 51 of the second motor 32 disposed on the left side on one side of the steel bar 11 into linear motion. The upper and lower fixed shafts 34a and 34b, which are assembled to the operation roll 35 by the power transmission unit 52, are eccentrically moved from the roll center to the left or right side, so that the upper and lower fixed shafts 34a ( It is to adjust the amount of eccentricity of the operation roll 35 rotated about 34b).

The power transmission unit 52 includes a drive gear 53 assembled to the drive shaft 51 of the second motor 32 and upper and lower driven gears 53a and 53b that are meshed with the upper and lower parts. Rotational direction and rotational drive amount of the second motor 32 by screwing male threads formed at both ends of the gear shafts 54a and 54b of the driven gears 53a and 53b to the female threaded holes of the shifting block 34. The upper and lower fixed shafts 34a and 34b of the shifting block 34 may be eccentrically moved left or right at the same time.

In addition, the shifting block 34 is equipped with a detection plate 55a in a circular groove 35c corresponding to the long side center of the rectangular guider 35a formed on the operation roll 35, and the detection plate 55a is mounted. The sensor member 55b to be detected is mounted on the upper end of the detection bar 56 fixed to the shifting block 34, and the rotary drive of the first motor 31 is detected by the detection signal of the sensor member 55b. The motor is stopped and the rotation is stopped, and the second motor 32 is electrically connected to the controller 57 via the power cable 57a so as to adjust the amount of eccentricity by rotating and driving the motor in the forward and reverse directions. Accordingly, the operation of adjusting the amount of eccentricity of the operation roll 35 may be performed when the square guide 35a of the operation roll 35 is arranged in parallel with the drive shaft 51.

Here, the power cable 57a connected to the sensor member 55b is externally drawn out through the inner diameter of the second guide bar 37b through a hole formed in the second guide bar 37b to the controller 57. And is electrically connected to the second motor 32.

The drive shaft 51 is rotatably supported by the drive shaft support bearing block 58a of the fixed bar 58 connected to the one side bearing block 33b supporting the second spindle 32a. The drive shaft 41 penetrated and inserted into the two guide bars 37a and 37b is rotatably supported by the bearing blocks 59a and 59b disposed in the hollow first and second guide bars 37a and 37b.

The operation of the present invention having the configuration as described above will be described.

In order to coat the organic solution on the surface of the plated steel sheet which proceeds in one direction, the coater roll 1 of the present invention is brought into close contact with the backing roll 4 side where the plated steel sheet is wound, and the first motor 31 is driven. When the first spindle 31a is driven to rotate, the roll part 10 made of the rubber part 12 and the shell 11 is rotated in one direction by the guide roll 23 in the guide groove 21 of the spindle 31a. Then, the organic solution transferred through the pickup roll 7 and the transfer roll 6 is started to be coated on the surface of the plated steel sheet.

At the same time, the first and second rotary plates 38a and 38b mounted in the inner hole of the iron shell 11 are also rotated in the same direction by the rotation of the iron shells 11 and the first and second rotary plates 38a ( The circular sphere 38c mounted to 38b is engaged with the circular groove 35c of the operation roll 35 rotatably assembled to the upper and lower fixed shafts 34a and 34b of the shifting block 34. The roll 35 is rotated simultaneously in one direction.

In this case, the operation roll 35 is connected to the upper and lower fixed shafts 34a and 34b to the movable block 35b assembled to be slidably movable on the square guide 35a, and the upper and lower fixed shafts. Since the 34a and 34b are eccentric from the roll center of the actuating roll 35, the actuating rolls 35 are upper and lower fixed shafts 34a and 34b which are separated from the roll center by a certain distance. Eccentric rotation of the eccentric amount by the eccentric distance between.                     

Since the operation roll 35 which is continuously eccentrically rotated is in contact with the reference roll 36 of the roll case 39, the left and right reciprocating motions of the steel bar 11 are performed once per rotation of the operation roll 35. Repeatedly, the left and right reciprocating motion of the iron shell 11 is a guide roll 23 is disposed in the guide groove 21 of the first and second main shaft 31a, 32a can be made smoothly. Accordingly, the edge portion of the plated steel sheet which is in contact with the rubber portion 12 of the coater roll 1 may be prevented from intensively contacting to prevent the occurrence of the edge mark.

On the other hand, the left and right shifting amount of the coater roll (1) can be adjusted by the distance between the upper and lower fixed shaft (34a, 34b) from the center of the roll eccentric amount of the operation roll 35, the eccentricity adjustment operation It should be made in a state where the rotation of the coater roll 1 is stopped. To this end, when the sensing plate 55a installed on one side of the plurality of circular grooves 35c of the operation roll 35 is detected by the sensor member 55b when the work is switched for eccentricity adjustment, the sensing plate 55a is a square guide. Since the rectangular guide 35a maintains a straight line in parallel with the drive shaft 51, the first motor is detected by the sensing signal of the sensor member 55b. At the same time as driving of 31 is stopped, the second motor 32, which is a stepping motor, starts to drive a certain amount by the control signal transmitted from the controller 57.

In this case, while the drive shaft 51 of the second motor 32 is rotated in one direction, the drive gear 53 mounted thereon is rotated, and the drive gear 53 is connected to the upper and lower driven gears 53a and 53b. Since the gears are meshed with each other, the upper and lower gear shafts 54a and 54b on which the upper and lower driven gears 53a and 53b are mounted are also rotated so that the upper and lower gear shafts 54a and 54b are rotated. It is possible to simultaneously horizontally shift the shifting block 34 screwed to the left and right both ends of the male thread.

That is, the movable block 35b to which the upper and lower fixed shafts 34a and 34b of the shifting block 34 are assembled is slidably assembled in the longitudinal direction in the square guide 35a of the operation roll 35. The shaft centers of the upper and lower fixed shafts 34a and 34b are separated from the roll center of the operation roll 35 by the forward or reverse rotational amounts of the upper and lower gear shafts 54a and 54b. By adjusting the eccentric rotation of the operation roll 35 rotated by the rotation of the iron bar 11 to be adjusted to be able to appropriately vary the amount of left and right movement of the coater roll (1).

Therefore, according to the present invention having the above-described configuration, the surface of the plated steel sheet is provided with an operation roll which is eccentrically rotated in accordance with the roll rotation and adjusts the amount of eccentric rotation in the coater roll formed of the rubber part and the cylindrical steel shell. By periodically moving the coater roll left and right by a certain amount during the coating of the organic solution on the surface, it is possible to prevent the edge mark generated by intensive contact of the edge portion of the plated steel sheet with the rubber part. It can prevent, significantly improve the quality of fingerprint and organic coated steel sheet products, eliminate the need to control the width of coated steel sheet, and greatly improve the replacement cycle of coater roll, which improves work productivity and reduces manufacturing cost. .                     

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to clarify that knowledge is easy to know.

Claims (6)

In the coater roll coating the organic solution on the surface of the plated steel sheet, A rubber part 12 in contact with a surface of the plated steel sheet and an outer circumferential surface thereof, and a roll part 10 which is driven in one direction by the first motor 31, which is integrally mounted on the outer surface thereof; The first spindle 31a of the first motor 31 and the second spindle 32a of the second motor 32 are guided through the guide parts 20 disposed in the inner holes of the left and right ends of the steel bar 11. Assemble to flow left and right respectively, and equipped with a working roll 35 for receiving the rotational force of the iron shell 11 and the reference roll 36 in contact with the outer circumferential surface in the inner space of the iron shell 11 to the roll portion ( A moving unit 30 which causes 10 to flow left and right with respect to the first and second main shafts 31a and 32a; The eccentricity of the operation roll 35 is moved by moving the axis center of the operation roll 35 left and right by the power transmission unit 52 for converting the rotational force of the drive shaft 51 of the second motor 32 into a linear motion. Edge mark prevention coater roll, characterized in that it comprises an eccentric adjustment unit (50) to adjust. The method of claim 1, The guide portion 20 includes at least two guide grooves 21 recessed in the longitudinal direction on the outer circumferential surfaces of the first and second main shafts 31a and 32a and bolts to the inner holes 11a and 11b. A guide roll 23 is rotatably assembled to a rotation shaft 24 of at least two roll brackets 22 fixedly installed as a member 22a, thereby rolling the guide roll 23 in the guide groove 21. Edge mark prevention coater roll, characterized in that arranged to be movable. The method of claim 1, The actuating roll 35 has a movable block 35b which is assembled to be slidably moved to the guide jaw of the square guide 35a, and the movable block 35b is the first and second main shafts 31a and 32a. The shifting block 34 fixedly installed as the key member 34d on the outer circumferential surface of the hollow first and second guide bars 37a and 37b respectively inserted into the inner holes of the bearings 31b and 32b, respectively. The first and second rotary plates 38a and 38b are rotatably assembled at ends of the upper and lower fixed shafts 34a and 34b, and are rotatably driven together with the steel bar 11 on the outer surface of the operation roll 35. While forming a plurality of circular grooves 35c recessed at regular intervals in the circumferential direction so as to engage with a plurality of circular spheres 38c mounted at regular intervals in the circumferential direction, and between the operation rolls 35 facing each other. A roll case 39 having a plurality of horizontal bars 39 a assembled in a rectangular shape is disposed, and is rotatable to the vertical bars 39 b of the roll case 39. Edge marked anti-roll coater to the outer surface of the granulated reference roll (36), characterized in that arranged to an interview with the outer peripheral surface of the work roll (35). The method of claim 3, wherein The second rotating plate 38b is fixed to the fixed plate 38 which is fixedly installed as a bolt 38e in the inner hole of the shell 11, and is formed in the first and second rotating plates 38a and 38b. An interval mark prevention coater roll, characterized in that the interval of the sphere 38c and the interval of the circular groove (35c) formed on the outer surface of the operation roll 35 is configured the same. The method of claim 1, The power transmission unit 52 includes a drive gear 53 assembled to the drive shaft 51 of the second motor 32 and upper and lower driven gears 53a and 53b that are meshed with each other. An anti-marker coater roll, characterized in that the male screw portion formed on both ends of the gear shafts (54a) (54b) of the synchronous words (53a) (53b) is screwed into the female thread hole of the shifting block (34). The method of claim 1, The detection plate 55a is mounted on the circular groove 35c corresponding to the long side center of the rectangular guider 35a formed on the operation roll 35, and the detection member 55b detects the detection plate 55a. The controller stops the rotation of the first motor 31 by the signal and stops the rotation, and the controller operates the power cable 57a to adjust the eccentricity by rotating the second motor 32 in the forward and reverse directions. An anti-mark mark coater roll, characterized in that electrically connected to (57).

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