KR20030050184A - A strip cleaning apparatus provided with a grinding wheel for grinding surface of a brush roll - Google Patents

Abstract

PURPOSE: A strip cleaning apparatus is provided to expand the life span of a brush roll and to continuously carry out a cleaning work by constantly maintaining cleaning force with respect to a strip without applying excessive force to the brush roll. CONSTITUTION: A strip cleaning apparatus includes a brush roll polishing unit(10). The brush roll polishing unit(10) has a polishing wheel(11), a water feeding/exhausting section(21), a polishing wheel conveying section(31). and a polishing wheel driving section(51). The polishing wheel(11) polishes a surface(4) of a brush roll(3) by using a polishing blade(13). The water feeding/exhausting section(21) sprays cleaning water by using a nozzle(9) and retrieves cleaning water into a water reservoir(22) so as to remove impurities contained in cleaning water. The conveying section(31) conveys the polishing wheel(11) in left, right, upper and lower directions with respect to a conveying direction of a strip.

Description

A strip cleaning apparatus provided with a grinding wheel for grinding surface of a brush roll}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for steel sheet strips, and more particularly, to brush surface and back-up roll on the surface of steel sheet strips rolled by rolling rolls in cold rolling facilities of steel mills. A strip cleaner with a brush roll surface polishing wheel wiped with

In general, in a facility for manufacturing a rolled steel strip through a series of continuous lines, such as a cold rolling facility of a steel mill, a strip cleaner for cleaning the surface of the strip may use the brush roll 103 as shown in FIG. A device for cleaning the surface of the strip 105 by using a brush roll 103 and a backup roll 107 on the upper and lower surfaces of the strip 105 so as to rotate in the opposite direction of the traveling direction of the strip 105. As a result, a large amount of heat is generated due to the friction between the brush roll 103 and the surface of the strip 105, and thus, the brush roll 103 is removed as shown in FIG. 1. ) And a cooling water nozzle 109 is installed at the contact portion of the surface of the strip 105 to spray frictional water on the frictional portion to reduce frictional heat. The strip cleaner 101 also typically has a brush roll 103 connected to a hydraulic cylinder 111 and a drive motor (not shown) shown in FIGS. 2 and 3 so that the brush roll 103 is pressed down according to the wear of the brush roll 103. By increasing the amount, the contact force on the surface of the strip 105 is kept constant.

However, since the strip cleaner 101 has a width of the brush roll 103 wider than that of the strip 105 as shown in FIGS. 2 and 3, the edge of the brush roll 103 is not frequently used. Therefore, only the portion in contact with the strip 105 wears relatively more, causing a step on the surface of the brush roll 103. As a result, the edge large diameter portion of the brush roll 103, which hardly occurs, is brought into contact with the surface of the backup roll 107, resulting in a weakening of the cleaning force on the surface of the strip 101, and compensating for such weakening of the cleaning force. In order to increase the rolling force of the brush roll 103 by the hydraulic cylinder, the frictional resistance with respect to the brush roll 103 is increased so that the driving force of the brush roll 103 is further consumed, and in the severe case, the brush roll 103 is driven. There was a problem that caused the motor to malfunction.

Accordingly, when the brush roll 103 is worn out, the strip cleaning device 101 is dismantled and regrind to remove the step difference on the surface and reuse it or replace it with a new product. In addition to reducing the productivity of the, there is a problem that increases the production cost due to additional requirements of the parts.

Therefore, the present invention has been proposed to solve the problems of the conventional strip cleaning apparatus, and even if the step of the wear occurs on the brush roll surface, the foreign matter removal efficiency on the strip surface is not degraded, the brush roll does not decompose. By cutting the stepped part to have a uniform diameter in the mounted state, the strip cleaning power by the brush roll is kept constant without applying excessive force to the brush roll by the hydraulic cylinder to increase the service life of the brush roll, and Its purpose is to help prevent downtime.

1 is a longitudinal sectional view schematically showing a conventional strip cleaner.

FIG. 2 is a schematic front view of the brush roll and the backup roll shown in FIG. 1. FIG.

3 is a cross-sectional view of FIG. 2.

Figure 4 is a longitudinal side view of the strip cleaning device is installed brush roll surface polishing apparatus according to the present invention.

5 is a partially enlarged view of FIG. 4.

6 is a front view of FIG. 5;

7 is a plan view of FIG.

8 is a perspective view of the pressure cover shown in FIG.

* Explanation of Signs of Major Parts of Drawings *

1: strip cleaner 2: base

3: brush roll 5: strip

7: backup roll 9: spray nozzle

10: brush roll surface polishing mechanism 11: polishing wheel

12 pressure cover 13 grinding blade

15: bearing block 21: water supply and drainage

22: water storage tank 23: water collecting tank

24: drain piping 25: supply piping

26 filter 31 polishing wheel transfer unit

32: grinding wheel base 33: pressurized cylinder

34,35: Electric chain 36: Transfer block

37: screw rod 38: transverse base

39: feed rail 47, 55, 58, 59: sprocket wheel

51: grinding wheel drive unit 53: drive motor

In order to achieve the above object, the present invention arranges the brush roll and the backup roll so as to contact the upper and lower surfaces of the strip, and installs nozzles adjacent to the contact surfaces of the brush roll and the strip to spray the washing water onto the brush roll. A strip cleaner for cleaning the surface, wherein the strip cleaner is configured to clean the surface of the strip by brush rolls while spraying the washing water from the nozzle onto the surface of the strip running between the brush roll and the backup roll. A polishing wheel for rotating a surface of a brush roll with one or more polishing blades which rotates while being in close contact with a surface of a brush roll by a pressure cover and protrudes on an outer circumferential surface thereof, Spray the wash water and recover the sprayed water to the reservoir After supplying to the nozzle again and then supplied to the nozzle, the polishing wheel feeder for transporting the grinding wheel in front, rear, left and right with respect to the strip conveying direction so as to contact or spaced apart from the brush roll surface, and is installed to move with the polishing wheel on the polishing wheel feeder Provided is a strip cleaning device having a brush roll surface polishing wheel including a brush roll surface polishing mechanism composed of a polishing wheel driving portion for rotationally driving a polishing wheel by a drive motor.

Hereinafter, a strip cleaner having a brush roll surface polishing wheel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the strip cleaning apparatus of the present invention, as shown by reference numeral 1 in FIG. 4, like the conventional strip cleaning apparatus, a plurality of brush rolls 3 and a backup roll 7 pair are arranged in a line along the rolling strip 5. As illustrated in FIG. 4, a plurality of brush roll surface polishing mechanisms 10 are provided on one side of each brush roll 3 positioned below or above the strip 5.

The brush roll surface polishing mechanism 10 supplies washing water sprayed from the polishing wheel 11 and the spray nozzle 9, which greatly removes the step generated on the outer circumferential surface of the brush roll 3, as shown in more detail in FIG. And a water supply and drainage unit 21 for collecting and circulating the polishing wheel, a polishing wheel conveying unit 31 for moving the polishing wheel 11 back and forth, and a polishing wheel driving unit 51 for rotating the polishing wheel 11. Here, the polishing is rotated in a state of being in close contact with the surface 4 of the brush roll 3 through the pressure cover 12 to remove the step generated on the surface of the brush roll 3 by the polishing blade 13. The wheel 11 is again pressed into the cylindrical polishing wheel body 16, the polishing blade 13 mounted on the outer peripheral surface of the body 16, and the polishing wheel rotation shaft 14, as shown in Figures 5 and 7 It consists of a cover 12.

At this time, the polishing wheel body 16 is installed in parallel with the brush roll 3 in a state in which the rotating shaft 14 is rotatable by a pair of bearing blocks 15 mounted on one end of the polishing wheel base 32. An electric sprocket wheel 55 is attached to one end of the rotary shaft 14. As described above, a plurality of polishing blades 13 are detachably mounted at a circumferential surface on the outer circumferential surface of the polishing wheel body 16 rotatably mounted at one end of the polishing wheel base 32 as shown. Each of the grinding blades 13 is formed by the fixing plate 72 and the fixing bolt 73 in the plurality of mounting grooves 17 cut in an inclined state on the outer circumferential surface of the polishing wheel body 16. It is attached detachably. In addition, a pressure cover 12 is mounted on the rotating shaft 14 between the bearing block 15 and the polishing wheel body 16. The pressure cover 12 is a bending plate that is bent in a cross-section C shape as shown in FIG. An arcuate curved surface 18 is formed between the polishing wheel body 16 and the brush roll 3, and the exposure surface 18 is opened by the brush exposure window 19. Through 19 allows the brushes to be exposed towards the grinding edge 13.

Washing water supply and drainage to spray the washing water to the polishing portion of the brush roll (3) by the polishing wheel 11 through the spray nozzle 9 and to recover the sprayed washing water to the water storage tank 22 to remove foreign substances and reuse them. 5 is connected to the injection nozzle 9 for spraying the washing water, the collecting container 23 for recovering the sprayed washing water, and the injection nozzle 9 and the collecting container 23, as shown in FIG. It consists of a reservoir tank (22). Here, the injection nozzle 9 is mounted on the nozzle pipe 6 which extends along the axis of the brush roll 3, as shown in FIGS. 5 and 7, so that the polishing wheel 11 and the brush roll 3 are mounted. It is provided adjacent to the upper part of this contact part, and wash water is supplied from the water storage tank 22 through the nozzle pipe 6, and is sprayed to the part grind | polishing by the grinding blade 13.

Brush roll (3) by polishing wheel (11) The collecting container (23) installed below the polishing portion to face the spray nozzle (9) is sprayed from the spray nozzle (9), and then the brush roll (3) and the polishing wheel (11). In order to receive the washing water flowing down along the water, it is to be sent to the water storage tank 22 through the drain pipe 24 connected to the bottom, and the on / off valve 27 is installed on the water storage tank 22 side of the drain pipe 24. It is. As such, the reservoir tank 22 connected to the water collecting container 23 through the drain pipe 24 connected to the upper part has a foreign substance in the center to filter foreign substances such as a brush cutting chip included in the washing water collected in the container 23. The filter 26 is installed, and the filtered washing water is again supplied to the nozzle pipe 6 through the supply pipe 25 connected to the lower end, and an on / off valve is also provided at the inlet side of the supply pipe 25 adjacent to the water storage tank 22. (28) is provided.

The polishing wheel 11 is moved forward and backward in the strip 5 conveying direction so as to contact or be separated from the surface of the brush roll 3 or to move from side to side along the axis of the brush roll 3 to polish the polishing portion of the brush roll 3. The abrasive wheel transfer part 31, which is adapted to change, is generally a polishing wheel base 32, a pressurization cylinder 33, a transverse base 38, and a transfer block 36 as shown in FIGS. The polishing wheel base 32, which is made of a four-wheel rod 37, supports a polishing wheel 11 at one end and a driving motor 53 at the center, as shown in a carriage, and a wheel which is a moving means at the bottom. 40 is attached so that it can move back and forth on the lateral base 38 by the pressure cylinder 33, and the adjustment knob 48 for adjusting the pressing force by the polishing wheel 11 between the front and rear wheels 40. ) Is installed.

As described above, the pressure cylinder 33 for moving the polishing wheel base 32 on the transverse base 38 is a hydraulic or pneumatic cylinder mounted on the transverse base 32 as shown in FIGS. 5 and 7. 42 is coupled to the polishing wheel base 32 through the flange portion 45 connected to the end of the fixing pin 43 to the end of the polishing wheel base 32 on the left and right in the drawing, that is, back and forth in the strip (5) feed direction The polishing wheel 11 mounted at one end of the base 32 is brought into contact with or spaced from the surface of the brush roll 3.

Similar to the polishing wheel base 11, the transverse base 38, which serves to serve as a kind of carriage, has a driving force transmitted from the polishing wheel driving unit 51 with the polishing wheel base 32 and the pressure cylinder 33 installed on the upper surface thereof. It is arranged to move from side to side on the base (2) by means of, for this purpose, a pair of sliding beds (46) are attached to the bottom of the transverse base (38) in the transverse direction, ie at right angles to the strip (5) conveying direction. A pair of transfer rails 39 are respectively installed on the base 2 so as to be coupled to the sliding bed 46. In addition, the transverse base 38 is screwed onto a screw rod 37 extending in the transverse direction as shown in FIG. 6 through a transfer block 36 rotatably fixed to the left and right sides by the fixing plate 41. . At this time, one of the transverse base 38, for example, the transfer block 36 fixed to the left side as shown in Figure 6 is attached to the sprocket wheel 47 on one side, the transmission chain wound around the sprocket wheel 47 The horizontal base 38 is moved left and right by selectively reversely rotating on the screw rod 37 by the rotational driving force of the driving motor 53 transmitted through the 35.

Finally, the polishing wheel driving unit 51, which is configured to drive the polishing wheel 11 and the transfer block 36 in rotation, has a driving motor 53 for generating rotational force as shown in FIGS. Composed of sprocket wheels 58 and 59 and transmission chains 34 and 35, the drive motor 53 is mounted on the polishing wheel base 32 as shown in FIG. 5, and the rotation shaft of the drive motor 53 is rotated. (57) At one end, a pair of sprocket wheels (58, 59) are mounted in a row with an intermittent clutch (60) interposed therebetween, and each sprocket wheel (58, 59) is driven through a transmission chain (34, 35). It is connected to the sprocket wheel 55 of the polishing wheel 11 and the sprocket wheel 47 of the transfer block 36, respectively, to rotate and drive the polishing wheel 11 by the rotation driving force of the drive motor 53, The transverse base 38 is moved left and right through 36.

Now, the operation of the strip cleaning device with a brush roll surface polishing wheel according to an embodiment of the present invention configured as described above is as follows.

First, the rotational driving force generated by the start of the driving motor 53 is transmitted to the sprocket wheel 55 through the transmission chain 34 wound around the sprocket wheel 58 to drive the polishing wheel 11 to rotate. When the polishing blade 13 rotates together with the polishing wheel body 16 as the polishing wheel 11 rotates, the adjustment knob 48 is adjusted to set the polishing depth of the brush roll 3 to an appropriate value. The polishing of the brush roll 3 by the polishing blade 13 is started by operating the pressure cylinder 33 so that the polishing wheel 11 is in contact with the brush roll 3. At this time, the brush roll 3 rotates in the same direction as the polishing wheel 11, and the cut brush chips are collected in the water collecting container 23 together with the washing water sprayed from the nozzle 9 to store the water along the drain pipe 24. Delivered to tank 22. The washing water from which foreign matters such as cutting chips are removed by the filter 26 in the water storage tank 22 is supplied to the nozzle pipe 6 through the supply pipe 25 again, and the brush roll 3 through the injection nozzle 9. Sprayed on the abrasive part of

When the surface of the brush roll 3 of the portion where the polishing wheel 11 is located is polished to a desired depth, the polishing wheel 11 is moved laterally. After connecting the motor rotation shaft 57 to the chain sprocket wheel 59, and transmits a rotational force to the sprocket wheel 47 through the chain (35). Accordingly, when the transfer block 36 rotates on the screw rod 37, the transverse base 38 pressurized by the transfer block 36 moves in the transverse direction along the transfer rail 39 by the sliding bed 46. The surface of the brush roll 3 is evenly polished so that the brush roll 3 has the same outer diameter.

As described above, according to the strip cleaning device having the brush roll surface polishing wheel according to the present invention, the brush roll may be easily removed as it is installed in the strip cleaning device so that the step generated on the outer circumferential surface of the brush roll may be removed. In addition to reducing the strip cleaning power, the maintenance time of the strip cleaner can be shortened, and the service life of the brush roll can be further increased, thereby increasing the efficiency of strip cleaning and device maintenance. It becomes possible.

Claims (4)

The brush roll 3 and the backup roll 7 are disposed to contact the upper and lower surfaces of the strip 5, respectively, and the nozzles 9 are installed to be adjacent to the contact surfaces of the brush roll 3 and the strip 5. In the strip cleaning device (1), which is configured to clean the surface of the strip (5) while spraying the washing water onto the brush roll (3), The surface 4 of the brush roll 3 is polished by one or more polishing blades 13 which rotate while being in close contact with the surface 4 of the brush roll 3 by the pressure cover 12. The cleaning water is sprayed by the polishing wheel 11, the nozzle 9 installed adjacent to the contact portion of the polishing wheel 11 and the brush roll 3, and the sprayed water is recovered to the water storage tank 22 to collect foreign substances. After removal, the feed / drainage part 21 to be supplied to the nozzle 9 again and the polishing wheel 11 are moved back, front, left and right with respect to the strip 5 conveying direction so as to move relative to the brush roll 3. Polishing wheel drive unit 51 for rotationally driving the polishing wheel 11 by the polishing wheel transfer unit 31 and the drive motor 53 installed to move together with the polishing wheel 11 on the polishing wheel transfer unit 31. Brush roll surface grinding, characterized in that it comprises a brush roll surface polishing mechanism (10) consisting of Strip cleaning device with a wheel. According to claim 1, The polishing wheel 11 is a polishing wheel body 16 is rotatably supported in a state parallel to the brush roll 3 by a bearing block 15 mounted at one end of the polishing wheel base 32, the The polishing blade 13 is detachably mounted to a plurality of mounting grooves 17 machined on the outer circumferential surface of the polishing wheel body 16, and is formed in a cross-sectional shape so as to be interposed between the bearing block 15 and the body 16. Brush roll, characterized in that consisting of the pressing cover 12 is bent and the brush exposure window 19 is opened on the pressing surface 18 located between the brush roll 3 and the body 16. Strip cleaner with surface grinding wheel. According to claim 1, The water supply and drainage part 21 of the injection nozzle 9, the brush roll 3 and the polishing wheel 11 for spraying the washing water to the contact portion of the brush roll 3 and the polishing wheel 11 It is connected to the sump container 23 and the injection nozzle 9 through the sump container 23 for collecting the washing water flowing down from the contact portion, and the drain pipe 24 and the supply pipe 25, respectively. 26. A strip cleaning device having a brush roll surface polishing wheel, characterized in that the water storage tank 22 is configured to remove foreign matter from the washing water introduced through the drain pipe 24 by means of 26). According to claim 1, The polishing wheel transfer unit 31 has the polishing wheel base 32 mounted at one end thereof, and the polishing wheel base 32 and the polishing wheel base 32 having the driving motor 53 installed on an upper surface thereof. Pressing cylinder 33 connected to the other end of the polishing wheel base 32, the polishing wheel base 32 and the pressing cylinder 33 is installed on the upper surface so as to move forward and backward in the moving direction of the transfer rail 39 The transverse base 38 and the transverse base 38 moving in a direction perpendicular to the transport direction along the strip 5 are rotatably constrained by the fixing plate 41 on one side of the transverse base 38 through the electric chain 35. Brush comprising a screw rod 37 extending laterally under the transverse base 38 so that the transfer block 36 connected to the drive motor 53 and the transfer block 36 are screwed together. Strip cleaner with roll surface grinding wheel.