KR100851191B1 - An apparatus for trimming the outer surface of a rotatable brush roll - Google Patents

Abstract

The present invention provides a brush roll that prevents the surface of the brush roll from being rapidly worn during the steel sheet production operation and its outer surface layer is worn in a step-shaped concavo-convex shape to form scratches on the strip surface layer. The present invention relates to an apparatus for surface treatment of a rotary brush roll which is improved to produce a high-quality hot-dip galvanized steel sheet by processing an outer surface thereof.

The present invention includes a cutter provided with a plurality of rotary blades in contact with the outer surface of the brush roll to rotate the blades during the rotation of the brush roll to cut the outer peripheral surface of the brush roll;

A moving unit which allows the cutter to move three-dimensionally up, down, front, and left and right with respect to the brush roll; A sensing unit having a sensor moved back and forth toward the brush roll to detect that the outer circumferential surface of the brush roll is worn and having a difference in diameter; and when the signal from the sensor of the sensing unit exceeds a preset value, the movement is performed. And a controller for driving the negative motors to cut the outer circumferential surface of the brush roll.

Hot-dip galvanized steel sheet, rotary brush roll, blade, sensor, roll surface processing equipment

Description

Surface treatment device of rotary brush roll {AN APPARATUS FOR TRIMMING THE OUTER SURFACE OF A ROTATABLE BRUSH ROLL}

1 is an operating state diagram of a rotary brush roll according to the prior art,

         a) working state of the brush roll

         b) the assembly and wear state of the brush roll;

2 is a configuration diagram equipped with a surface processing apparatus of the rotary brush roll according to the present invention;

3 is an external perspective view of the surface processing apparatus of the rotary brush roll according to the present invention;

4 is a cross-sectional view of a cutter provided in the surface processing apparatus of the rotary brush roll according to the present invention;

5 is an exploded perspective view of the surface processing apparatus of the rotary brush roll according to the present invention;

6 is a cross-sectional view showing a mounting structure of a cutter provided in the surface processing apparatus of the rotary brush roll according to the present invention;

7 is a flow chart showing the operation sequence of the surface processing apparatus of the rotary brush roll according to the present invention.

       <Description of the symbols for the main parts of the drawings>

10 ..... cutter 50 ..... moving part

52 ..... Traveling rail 56 ..... Screw shaft                 

60 ..... electric motor 70 ..... moving support

80 ..... vertical guide 92 ..... vertical motor

96 ..... this material inlet 110 .... absent me

114 .... blade 120a, 120b .... bracket

130 ..... Drive motor 136 ..... Suction pump

140 ..... Foreign Material Container 150 .... Detector

160 ..... Sensor 170 .... Spring

180 ..... Sensor element 190 .... Controller

200 .... brush roll 220 .... strip

The present invention relates to a device for processing the surface defects of the rotary brush roll caused by the change in the strip specification changes frequently during the production operation of the hot-dip galvanized steel sheet, more specifically, the surface of the brush roll during the steel sheet production operation rapidly The outer surface of the brush roll is machined to prevent high-quality hot-dip galvanized steel sheet from being worn on the surface of the brush roll to prevent the outer surface layer from being worn into the step-shaped concave-convex shape to form scratches on the strip surface layer. A surface processing apparatus for a rotary brush roll improved for production.

In general, the brush roll 200 used in the hot dip galvanizing process, as shown in Figure 1, the strip (strip) 220 is passed through a hydrochloric acid tank (not shown) is washed in a rinse tank (not shown) In the process, stripping the residual hydrochloric acid film on the surface of the strip 220 and completely remove the scale, the surface is always used to produce a plated product with a beautiful state.

Brush roll 200 to be used in the same principle as above is used in the pair of vertical frames 223 inside the front and rear two sets (Set) are respectively installed to be able to move up and down, respectively, the front side One set of brush strips is always in contact with the surface of the advancing strip 220 from above and below, and the sweeping operation of the strip 220 is performed between them. In the event of an abnormality of 200), work is to be taken immediately.

This set of brush rolls 200 is a surface of the brush roll 200 in use to improve the cleanliness of the surface of the strip 220 in the hot dip galvanizing process, as shown in b) of FIG. It has a structure assembled by combining the parent member 202 formed in a circular shape.

This is because the brush roll 200 in contact with the surface of the upper and lower surfaces of the strip 220 is in close contact with the strip 220 at a mutually constant pressure, so that the rotating operation is performed by driving the motor 230, respectively. During the operation, the surface of the brush roll 200 is easily damaged by the frictional force and the plate tilting of the surface of the strip 220.

In addition, when the cleaning operation is performed in accordance with the constant strip 220 width, the outer peripheral surface with frequent contact with the strip 220, irregular wear more easily than the other non-contact surface.

In this way, once the irregular wear is formed on the surface of the brush roll 200, the difference (K) of the diameter of the brush roll 200 is made, so if the width of the strip 220 to be worked on the strip previously worked In the case where the work is to be performed in a different width than the width of the 220, the part contacting the strip 220 is different according to the diameter difference K of the irregular brush roll 200, so that the strip 220 has a large width. A local poor contact occurs, which is the cause of defects in the form of line markers and other lines on the surface of the strip 220.

As described above, if various defects are formed on the surface of the strip 220 that proceeds, even though hot dip galvanizing is performed in a later process, the defects are directly drawn on the surface of the strip 220, such a product is produced. If it is, it will be difficult to sell to the demand as a normal product.

Therefore, if a defect occurs on the surface of the strip 220 due to the above causes, the worker immediately cleans the strip 220 by replacing the brush roll 200 set in use with the pending brush roll 200. During the operation, the brush roll 200 worn out should be immediately replaced with a new brush roll to always be optimally prepared.

However, during normal continuous line operation, there is a difficulty in replacing the rolls, and the brush roll 200 which is used once and irregularly worn on its surface is frequently inefficient, which frequently requires replacement. Substantial workload is incurred in the replacement work, resulting in inefficiency of the maintenance work.

In addition, since the wear roll 200 is often replaced with the wear is left unchanged, a fatal degradation of the strip 220 occurs, such a poor quality of the strip is not shipped as a finished product cost ( There is a problem of rising by unit.

The present invention has been made to solve the above-mentioned conventional problems, the object of which is to inspect the wear state of the brush roll surface from time to time to process the irregular roll surface according to the degree of wear, and occurs during the outer surface processing of the brush roll This material can be collected and discharged to a certain place so that the outer surface of the brush roll is always secured to a uniform and constant diameter to achieve excellent surface quality of the strip and to prevent premature replacement due to wear of the brush roll. It is to provide a surface processing apparatus of the rotary brush roll to prevent the cause of the rise of the strip production cost.

In order to achieve the above object, the present invention, in the apparatus for processing the surface defects of the rotary brush roll caused by abrasion caused by the strip that changes frequently during the production operation of the hot-dip galvanized steel sheet,

A cutter provided with a plurality of rotary blades contacting the outer surface of the brush roll to rotate the blades during the rotation of the brush roll to cut the outer circumferential surface of the brush roll;

A motor having a plurality of moving rails, each of which has a front end connected to a vertical frame on which the brush roll is mounted, a motor for elevating the cutter up and down on the moving rail, a motor for moving the cutter in the longitudinal direction of the brush roll, and the cutter; A moving unit having motors close to the brush roll to move the cutter up, down, front, and left and right with respect to the brush roll;

A sensing unit having a sensor that is moved back and forth toward the brush roll to detect that the outer circumferential surface of the brush roll is worn and the diameter is different; and

If the signal from the sensor of the sensing unit exceeds a preset value, the controller for driving the motor of the moving unit to cut the outer circumferential surface of the brush roll; and to ensure that the brush roll has a uniform diameter By providing a surface processing apparatus of the rotary brush roll characterized in that.

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

The surface processing apparatus 1 of the rotary brush roll according to the present invention is a cutter 10 for managing the roll surface in a uniform manner at all times during the operation of the brush roll 200, as shown in FIGS. 2 and 3 as a whole. And a moving unit 50 for moving it in a three-dimensional direction.

First, in the present invention, the front end is connected to each of the vertical frame 223, the brush roll 200 is mounted, the moving unit 50 is mounted on the movable rail 52 of the plurality of side-by-side cross-section.

The movable rails 52 constitute a plurality of sets, each set of which is connected to one side of the vertical frame 223 rotatably supporting the brush roll 200 while maintaining a predetermined interval up and down.

The moving part 50 is equipped with a vertical body 54 to enable the forward and backward on the moving rail 52, the lower end of the vertical body 54 to form a screw portion (54a) of the screw shaft 56 Screw the threads together. The screw shaft 56 extends along the longitudinal direction of the movable rail 52, respectively, and the opposite side of the vertical body 54 connects the rotating shaft 60a of the electric motor 60 for power transmission, respectively.

The electric motor 60 is fixed to the outside of the moving rail 52 by a bolt (not shown) or the like in the moving rail 52 by forward and reverse rotation operation of the electric motor 60. The vertical body 54 is moved forward and backward.

In addition, when the vertical body 54 is mounted on each rail 52 in the same manner as above, the vertical bodies 54 are connected to each other, that is, parallel to the longitudinal direction of the brush roll 200. A circular guide 64 and a screw shaft 66 are mounted between the vertical bodies 54, and the movable support 70 is coupled to each other.

The movable support 70 is formed with a hole 72 in the transverse direction in the middle thereof is inserted into the circular guide 64 to be slidable, the lower side of the hole 72 to form a screw portion 74 It is screwed to the screw shaft (66). In addition, one end of the screw shaft 66 is mounted to the rotary shaft 76a of the electric motor 76 in the horizontal direction. Therefore, the forward and reverse rotation operation of the lateral electric motor 76 causes the screw shaft 66 to be rotated forward and backward so that the vertical body 70 moves along the circular guide 64, which is a brush roll ( Along the longitudinal direction of 200).

On the other hand, the movable support 70 is equipped with a vertical guide 80, which is processed + cutting groove 82 of the + type on one side thereof, first, the fixing guide 84 in the lower rear of the vertical guide 80 ) Is mounted on one side of the movable support 70 toward the brush roll 200 side, and then the movable base 86 having a + -shaped cross-sectional structure is inserted into the vertical guide 80. .

The movable table 86 is to be moved up and down inside the + -shaped cutting groove 82 of the vertical guide 80, vertical between the vertical guide 80 and the movable support 70 The rear end is screwed to the screw shaft 88 arranged in this manner. In addition, the screw shaft 88 is supported so that the lower end is rotatable to the holder 84, the upper end is connected to the rotary shaft 92a of the vertical motor 92 through the fixing plate 90.

The fixed plate 90 is to position the vertical motor 92 in place, one side of which is integrally connected to the upper end of the movable support 70 by welding or the like, the vertical motor 92 through the through hole (90a) It is fixed. Accordingly, the forward and reverse rotation operation of the vertical motor 92 is such that the movable base 86 is moved up and down in the vertical guide 80 through the screw shaft 88.

On the other hand, the front end portion of the + -type movable base 86 mounted as described above is mounted so as to extend forwardly from the vertical guide 80, the material suction port 96 is mounted on the portion again Mounted vertical moving plate 98 is mounted.

As shown in cross-section in FIG. 6, the vertical movable plate 98 is equipped with a rotary bucket-type cutter 10, in which the cutter 10 has a plurality of holes 102 in the hollow space 104. It has a cylindrical body 106 formed in the radial direction toward), and a plurality of blade members 110 protruding radially to the outer surface of the body 106 is formed. Each of the blade members 110 forms a bent portion having a 단면 -shaped cross section at its tip to form a blade 114. When the cutter 10 is rotated, as shown in FIG. As the 110 rotates, the outer surface of the brush roll 200 is cut off.

On the other hand, the cutter 10 is mounted through the brackets 120a and 120b to be rotatable on the vertical moving plate 98. The foreign matter suction port 96 is provided in the bracket 120a on the one side to provide a bearing 122. Rotatingly coupled to the inner diameter of the body 106 of the cutter 10, the other side bracket (120b) is mounted to the drive motor 130 and its rotating shaft (130a) of the cutter body 106 It is connected to the other side.

Therefore, the cutter 10 rotates at a high speed about the foreign matter suction port 96 by the operation of the drive motor 130.

In addition, the plurality of holes 102 formed in the body 106 communicate with the foreign matter inlet 96, and the foreign matter inlet 96 is a suction pump 136 and the foreign matter container 140 through a hose 134 or the like. Is connected to. Accordingly, the operation of the suction pump 136 causes the negative pressure to reach the inner diameter of the body 106 of the cutter 10 such that the foreign matter cut by the blade 114 through the holes 102 of the body 106. To inhale them.

In addition, the surface processing apparatus 1 of the rotary brush roll according to the present invention is equipped with a sensing unit 150 to inspect the wear state of the surface of the rotating brush roll 200 during the cleaning operation of the brush roll 200. The sensing unit 150 is mounted to the body of the moving cylinder 154 and the guide tube 156 through the bracket 152 on one side of the vertical moving plate 98, the rod of the moving cylinder 154 The outer cylindrical cover 162 of the sensor 160 is mounted at 154a.

In addition, the guide rod 164 is mounted to one side of the cylindrical cover 162 so that the sensor 160 is moved by the operation of the moving cylinder 154 by being fitted to slide in the guide tube 156. The rod 164 is to be guided linearly by the guide tube 156.

The sensor 160 has a spring 170 having excellent elasticity inside the cylindrical cover 162 and a diaphragm 172 on both sides thereof, and the diaphragm in front of the diaphragm has a semicircular shape through a connecting rod 174. Excitation touch bar 176 is mounted, the sensor element 180 is located on the rear diaphragm. In addition, the sensor element 180 is configured to be electrically connected to the controller 190.

The sensor 160 acts as a touch detection sensor. When an external object comes into contact with the touch bar 176, the rear sensor element 180 is electrically connected to the rear panel through the diaphragm 172 and the spring 170. The signal is sent to the controller 190.

The operation and effects of the present invention configured as described above will be described in more detail.

Surface processing apparatus 1 of the rotary brush roll of the present invention is to cut the outer surface of the brush roll 200 to maintain a uniform diameter. The brush roll 200 rotates to completely remove various foreign matters and surface scales attached to the surface of the strip 220 moving forward in the hot dip galvanizing process to ensure the cleanliness of the surface. The brush roll 200 is rotated as shown in FIG. 1 in a direction opposite to the progression of the strip 220 which always proceeds, in order to increase the friction effect between the strip 220 and the outer surface of the brush roll 200.

On the other hand, the present invention, when the brush roll 200 as described above is used to clean the strip 220 of the other set of brush rolls 200, already used brush rolls are the surface processing of the rotary brush roll of the present invention The moving rails 52 provided in the apparatus 1 are positioned to be positioned on the vertical frame 223, adjacent to the cutter 10 while being spaced therebetween, and are idling by the rotary motor 230.

When the brush rolls 200 that are already used as described above are moved and rotated toward the cutter 10, the present invention operates the sensing unit 150 in the controller 190 to check the wear state of the brush roll surface at any time. .

That is, the sensing unit 150 operates the moving cylinder 154 according to the signal of the controller 190 so that the rod 154a is momentarily advanced and the outer surface of the brush roll 200 in which the touch bar 176 is rotated. Lightly contact with the surface. At this time, the sensor 160, the guide rod 164 is slid in the guide tube 154 is moved linearly good.

When a contact is made on the surface of the brush roll 200 in which the touch bar 176 rotates in the above manner, the contact signal is transmitted from the sensor element 180 to the controller 190, and the controller 190 As the electric motor 76 and the screw shaft 66 are automatically operated by a series of predetermined programs, the movable support 70 is moved in the longitudinal direction of the brush roll 200 so that the touch bar of the sensing unit 150 ( 176 moves in the longitudinal direction of the brush roll 200 to inspect the roll surface for damage.                     

In this process, as shown in FIG. 5, when the brush roll 200 is worn out from a reference value set to a uniform diameter with respect to the brush roll 200, and is out of the diameter size range of ± 5 mm or more from the diameter, the controller 190 determines that the brush roll 200 surface is worn and the diameter difference is large.

Therefore, in order to manage the diameter difference (damage part) of a brush roll uniformly, the brush roll 200 process operation is implemented.

To this end, in the present invention, the electric motor 130 operates first, while the bucket-type cutter 10 rotates at a high speed, while the electric motor 92 operates finely, the + type moving table mounted on the vertical screw shaft 88 ( 86) is moved to the position to be processed while appropriately moving up and down, while the electric motor 60 and the screw shaft 56 are operated again, the bucket-type cutter 10 gradually contacts the outer surface of the brush roll 200 As shown in FIG. 4, the blade 114 cuts the tip of the brush roll 200.

At this time, the rotation of the bucket-type cutter 10 that is rotating, must be rotated in the opposite direction of the rotation direction of the brush roll 200 is currently driven, a lot of contact with the surface of the brush roll 200 from the beginning If the cutting is made in a non-uniform cutting form, and also causes a rise in the early wear rate, the cutting operation of the brush roll 200 is always performed so that the cutting amount is little by little.

Then, the bucket-type cutter 10 is moved to the left and right by the electric motor 76, the touch bar 176 of the sensing unit 150 is always in contact with the surface of the brush roll 200 during the cutting operation, the wear state thereof When the polishing surface wavelength of FIG. 7 nearly reaches the zero point, the machining operation is completed, and the above operation is repeated from time to time so as to reach the reference range of the trimming degree.

According to the processing apparatus of the brush roll surface according to the present invention as described above, the wear state of the surface of the brush roll 200 is always measured by the sensing unit 150 during the operation of the brush roll 200, By cutting to maintain the surface state in a uniform manner at all times by using the bucket-type cutter 10, the cause of irregular defects on the surface of the strip 220 caused by the damage of the surface of the brush roll 200 effectively Will be removed.

Therefore, by minimizing the diameter deviation of the brush roll as described above, it is possible to produce a high-quality hot-dip galvanized steel sheet, and to prevent the premature replacement of the brush roll 200 by producing an optimal product production condition ( The effect of preventing an increase in the unit) is obtained.

Claims (4)

In the apparatus for processing the surface defects of the rotary brush roll caused by the wear of the strip 220, which changes frequently during the production operation of the hot-dip galvanized steel sheet, The cutter is provided with a plurality of rotary blades 114 in contact with the outer surface of the brush roll 200 to rotate the blades 114 during the rotation of the brush roll 200 to cut the outer peripheral surface of the brush roll 200 10; A motor 92 having a plurality of moving rails 52 each having a front end connected to the vertical frame 223 on which the brush roll 200 is mounted, and lifting and lowering the cutter 10 up and down on the moving rail 52. And a motor (76) for moving the cutter (10) in the longitudinal direction of the brush roll (200) and motors (60) for moving the cutter (10) to a brush roll. Moving unit 50 to move up and down, front and rear and left and right with respect to 200; A sensing unit 150 having a sensor 160 which is moved back and forth toward the brush roll 200 to detect that the outer circumferential surface of the brush roll 200 is worn and the diameter thereof is different; and When the signal from the sensor 160 of the sensing unit 150 exceeds a preset value, the blades 114 may be driven by driving the motors 60, 76, 92 of the moving unit 50. And a controller 190 for shaving the outer circumferential surface of the brush roll 200 to make the brush roll have a uniform diameter. 2. The cutter (10) according to claim 1, wherein the cutter (10) has a cylindrical body (106) formed in a radial direction toward the hollow space (104) inside, and radially to the outer surface of the body (106). A plurality of protruding blade members 110 are formed, and each of the blade members 110 forms a blade 114 at its tip to rotate the plurality of blade members 110 to rotate the outer surface of the brush roll 200. Surface treatment apparatus for a rotary brush roll, characterized in that the chipping. According to claim 2, The cutter 10 has a plurality of holes 102 formed in the body 106 is in communication with the foreign matter inlet 96, the foreign matter inlet 96 is a suction pump through a hose 134, etc. 136 and the foreign matter container 140 is connected to the operation of the suction pump 136 through the holes 102 of the body 106 by the negative pressure to reach the inner diameter of the body 106 of the cutter 10 Surface treatment apparatus of the rotary brush roll, characterized in that for suction treatment of foreign matters cut by the blade (114). According to claim 1, The sensor 160 has a spring 170 having excellent elasticity and a diaphragm 172 on both sides thereof, the inner side of the cylindrical cover 162, the connecting rod 174 to the diaphragm in front of the sensor 160, respectively Touch bar 176 having a semi-circular shape is mounted through, the rear surface of the diaphragm sensor device 180 is located is electrically connected to the controller 190, characterized in that the surface processing apparatus of the rotary brush roll .

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