Online brush roller replacing device

Abstract

The invention provides an online brush roller replacing device which is used for rapidly replacing a brush roller on a washing section and comprises a mounting frame erected on the washing section, an arc-shaped sliding groove arched upwards is formed in the mounting frame, a replacing station is arranged in the middle of the arc-shaped sliding groove, and brushing stations are arranged at the head end and the tail end of the arc-shaped sliding groove; a transmission mechanism for driving a brushing roller of the brushing station to rotate is arranged below the arc-shaped sliding groove, a flushing mechanism penetrating through the two ends of the mounting frame is arranged above the transmission mechanism, the steel belt passing through the lower portion of the flushing mechanism is flushed, and the two ends of the flushing mechanism are each hinged to a first swing arm structure and a second swing arm structure; the first swing arm structure and the second swing arm structure alternately support the brush rollers to brush the steel belt in the arc-shaped sliding groove, and control structures are arranged in the first swing arm structure and the second swing arm structure to automatically control replacement of the new brush rollers and the old brush rollers. The brush roller replacement device is simple in structure, and the convenience of brush roller replacement is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of steel strip processing, and more specifically to an online brush roller replacement device. Background Technology

[0002] After electrolysis or pickling, steel strips retain residual electrolyte or acidic substances on their surface, requiring extensive rinsing with liquid (water). This is achieved by using multiple sets of rotating brush rollers to scrub the strip surface. These brush rollers are typically arranged in even numbers; the rollers at both ends are squeeze rollers, while the middle rollers use bristle rollers to clean the strip. The squeeze rollers and bristle rollers are easily worn parts and need to be replaced when they reach a certain wear level.

[0003] Traditionally, roll changing devices require stopping the machine or reducing the speed of the steel belt during roll changing, which is difficult and affects production efficiency. For example, the online roll changing device and method for the cleaning section disclosed in CN202311096479.9 uses a track-type roll changing trolley set up on the operating side of the cleaning section to change rolls. Although the set-up track and roll changing trolley avoid the need to stop the machine during roll changing, reducing the speed of the steel belt still affects production efficiency. In addition, the roll changing trolley occupies a lot of space resources, and the operation is still inconvenient during roll changing. Summary of the Invention

[0004] In view of the above, it is necessary for the present invention to provide a convenient and quick online brush roller replacement device that does not affect the production efficiency of steel strip.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An online brush roller replacement device for quickly replacing brush rollers on a rinsing section includes: a mounting frame mounted on the rinsing section; two transmission mechanisms fixedly mounted on the mounting frame for driving the brush roller to rotate; a rinsing mechanism mounted on the mounting frame and located above the transmission mechanism; two first swing arm structures hinged to both ends of the rinsing mechanism for supporting the brush roller to swing 90 degrees on one side of the rinsing mechanism; two second swing arm structures hinged to the two first swing arm structures for supporting the brush roller to swing 90 degrees on the other side of the rinsing mechanism; and a control structure disposed within each of the first and second swing arm structures for controlling the swing of the first and second swing arm structures.

[0007] Furthermore, the mounting frame is provided with several parallel connecting rods, and fixed plates are provided at both ends of the connecting rods. Both fixed plates are provided with upward-arched arc-shaped grooves. An upward-opening slot is provided in the middle of the arc-shaped groove, and the slot forms a replacement station. The beginning and end of the arc-shaped groove are set as brushing stations.

[0008] Furthermore, the flushing mechanism includes a fixed shaft and a rotating sleeve. The fixed shaft includes a hollow intermediate shaft with a through water passage formed inside. Water supply rings are connected to both ends of the intermediate shaft. The water supply rings have three water passage holes, each equipped with a one-way valve, and all three water passage holes are connected to the water passage channel. The rotating sleeve is rotatably mounted on the intermediate shaft.

[0009] Furthermore, the first swing arm structure includes a first swing arm and a first telescopic arm. The first swing arm has a hinged end with a first groove. A central bushing is located at the center of the first groove, and a first protrusion is located between the central bushing and the first groove. An arc-shaped slot is located in the first groove, close to the first protrusion, and two circular holes are located between the arc-shaped slot and the central bushing. A first elongated hole is located on the end face of the first swing arm away from the hinged end, and the first elongated hole contains compressed gas. A first long rod is connected between one end of the first telescopic arm and the first elongated hole, and the first long rod is slidably compressed by the compressed gas within the first elongated hole. The other end of the first telescopic arm has a U-shaped first latch for engaging and supporting the brush roller to slide within the arc-shaped groove.

[0010] Furthermore, the second swing arm structure includes a second swing arm and a second telescopic arm. One end of the second swing arm has a second groove, and a second protrusion is provided in the second groove. The other end of the second swing arm has a plurality of second elongated holes, which contain compressed gas. One end of the second telescopic arm is connected to a first elongated hole, and the second elongated rod is slidably compressed by the compressed gas in the second elongated hole. The other end of the second telescopic arm has a U-shaped second latch for engaging and supporting the brush roller to slide in the arc-shaped groove.

[0011] Furthermore, the control structure includes a control chamber and a control component, the control component being disposed within the control chamber; the control chamber is provided with a sliding cavity, the sliding cavity communicating with the first groove; the inner wall of the sliding cavity is provided with two opposing guide grooves, each of the two guide grooves having an inclined slot at the end furthest from the first groove; the control chamber is provided with a pressure chamber, the pressure chamber communicating with the sliding cavity through the inclined slot; the pressure chamber is connected to a pressure channel, the pressure channel being connected to a moving cavity, the moving cavity communicating with the sliding cavity.

[0012] Furthermore, the control assembly includes a sliding rod disposed within the sliding cavity, a reset member sleeved on the sliding rod, and a pressure rod abutting against one end of the sliding rod; one end of the sliding rod is provided with two sliding blocks, which are respectively disposed in two guide grooves; one end of the sliding rod is also sleeved with a compression spring, one end of which is fixed to the inner wall of the sliding cavity, and the other end abutting against the two sliding blocks; a sealing block is hinged to the other end of the sliding rod to seal the circular hole near the first protrusion; a reset member is sleeved in the middle of the sliding rod, which extends into the moving cavity, and a pressure rod is disposed within the pressure cavity.

[0013] Furthermore, the reset component includes a sleeve and a push rod arranged parallel to each other. The sleeve and the push rod are connected by a connecting plate. The sleeve is sleeved on the sliding rod, and the push rod is slidably disposed in the moving cavity, with one end inserted into the pressure channel.

[0014] Furthermore, the pressure rod includes an upper pressure rod and a lower pressure rod, which are connected by a sliding member. The upper pressure rod extends at least partially out of the pressure chamber to abut against a sliding block that slides into the inclined slot; the lower pressure rod extends at least partially out of the pressure chamber to slide and squeeze hydraulic oil into the pressure chamber when subjected to pressure.

[0015] Furthermore, the second swing arm is hinged to the first swing arm at one end and fastened together. The first protrusion extends into the second groove, and the second protrusion extends into the first groove. The first and second protrusions divide the space enclosed by the first and second grooves into two opposing fan-shaped areas. One fan-shaped area is a power chamber, which is connected to the water passage through an arc-shaped slot and a water passage hole. When the water pressure in the power chamber increases, it pushes the first or second protrusion away from each other. An arc-shaped spring is provided in the other fan-shaped area, with its two ends abutting against the first and second protrusions respectively.

[0016] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0017] 1. The first and second swing arm structures drive the brush rollers to alternate, allowing for online brush roller replacement in the rinsing section and improving production efficiency. Furthermore, the first and second elongated holes contain compressed gas, which respectively compresses the first and second telescopic arms, supporting the brush rollers, to swing along the arc-shaped groove towards the transmission mechanism. This allows the brush rollers to self-adjust as they wear, always remaining in contact with the steel strip surface. Combined with the control structure within the first and second swing arm structures, automatic replacement of the brush rollers occurs when they wear to a certain degree.

[0018] 2. The water passage of the flushing structure is connected to an external water source, so that the water in the water passage has a certain pressure, which makes it easy to spray the steel belt surface through the nozzle for flushing. The water in the water passage can enter the power chamber through the water supply ring. When the two round holes are completely closed, the first swing arm structure or the second swing arm structure is pushed to swing from the replacement station to the brushing station. Attached Figure Description

[0019] Figure 1 This is a perspective view of a preferred embodiment of an online brush roller replacement device of the present invention;

[0020] Figure 2 Front view of the brush roller changing device;

[0021] Figure 3 A perspective sectional view of the brush roller changing device;

[0022] Figure 4 This is a structural diagram of a fixed shaft;

[0023] Figure 5 This is a structural diagram of the first swing arm;

[0024] Figure 6 This is a structural diagram of the second swing arm;

[0025] Figure 7 This is the state diagram before the control structure is triggered;

[0026] Figure 8 This is the state diagram after the control structure is triggered;

[0027] Figure 9 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 10 This is a cross-sectional view of the control room structure.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Brush roller; 101. Follower wheel; 10. Mounting bracket; 11. Connecting rod; 12. Fixing plate; 121. Arc-shaped groove; 122. Horizontal groove; 123. Slide plate; 20. Transmission mechanism; 21. Drive motor; 22. Transmission component; 23. Driving wheel; 24. Driven wheel; 241. Elastic component; 30. Flushing structure; 31. Fixed shaft; 311. Intermediate shaft; 3111. Water outlet; 312. Water supply ring; 3121. Water passage hole; 313. Fixing pipe; 32. Rotating sleeve; 40. First swing arm structure; 41. First swing arm; 411. First groove; 412. First protrusion; 413. Arc-shaped groove; 414. Round hole; 42. First telescopic arm; 42 1. First long rod; 422. First bayonet; 423. First track groove; 50. Second swing arm structure; 51. Second swing arm; 511. Second groove; 512. Second protrusion; 52. Second telescopic arm; 521. Second long rod; 522. Second bayonet; 523. Second track groove; 60. Control structure; 61. Control chamber; 611. Sliding cavity; 6111. Guide groove; 612. Pressure cavity; 613. Moving cavity; 62. Control component; 621. Sliding rod; 6211. Sliding block; 6212. Sealing block; 622. Reset component; 6221. Sleeve; 6222. Push rod; 623. Pressure rod; 6231. Upper pressure rod; 6232. Lower pressure rod. Detailed Implementation

[0031] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0032] Reference Figure 1 , Figure 2 This invention provides an online brush roller replacement device for quickly replacing brush rollers 1 on a rinsing section. The device includes a mounting frame 10 erected on the rinsing section. The mounting frame 10 has several parallel connecting rods 11, and each connecting rod 11 has a fixing plate 12 at both ends. Two upward-arching arc-shaped grooves 121 are correspondingly formed on the fixing plates 12. An upward-opening slot is provided in the middle of the arc-shaped groove 121, allowing it to communicate with the outside of the fixing frame 10, forming a replacement station. Two brushing stations are formed at the beginning and end of the arc-shaped groove 121, located on the same horizontal line. A transmission mechanism 20 is installed on each fixing plate 12, located below the arc-shaped groove 121, and can drive the brush roller 1 near the brushing station to rotate, thus brushing the surface of the steel strip.

[0033] A rinsing mechanism 30 is also installed between the two fixed plates 12. The rinsing mechanism 30 is located above the transmission mechanism 20. The rinsing mechanism 30 is located between the two brushing stations and is on the same horizontal line as the two brushing stations. It rinses the steel strip passing below the rinsing mechanism 30. The replacement station is located directly above the rinsing mechanism 30.

[0034] Both ends of the rinsing mechanism 30 are hinged with a first swing arm structure 40 and a second swing arm structure 50 that abut against the fixed plate 12. Both the first swing arm structure 40 and the second swing arm structure 50 can swing 90 degrees, and the included angle between the first swing arm structure 40 and the second swing arm structure 50 is 90 to 180 degrees. They are used to alternately support the brush roller 1 to slide along the arc-shaped slide groove 121 and abut against the surface of the steel strip to brush the steel strip. For example, when the two first swing arm structures 40 support the brush roller 1 to brush the steel strip at two brushing stations, the two second swing arm structures 50 are vertically located at the replacement station. The new brush roller 1 can be placed on the two second swing arm structures 50 to wait for replacement, and vice versa.

[0035] A control structure 60 is provided inside the first swing arm structure 40 and the second swing arm structure 50. The control structure 60 controls the first swing arm structure 40 and the second swing arm structure 50 to alternately swing and brush the surface of the steel strip.

[0036] When the worn brush roller 1 needs to be replaced, since the first swing arm structure 40 supports the brush roller 1 to always be in contact with the steel strip surface, the worn brush roller 1 located in the arc-shaped groove 121 has its axis close to the steel strip surface, driving the brush roller 1 into the brushing station. At this time, the first swing arm structure 40 triggers its internal control structure 60, which controls the second swing arm structure 50 located in the replacement station to support the new brush roller 1 to slide in the arc-shaped groove 121 to one of the brushing stations, so that the brush roller 1 contacts the steel strip and the transmission mechanism 20. The transmission mechanism 20 drives the brush roller 1 to rotate and brush the steel strip surface. Then the first swing arm structure 40 supports the old brush roller 1 to swing upward along the arc-shaped groove 121 to the replacement station, making it convenient to remove the worn brush roller 1 and replace it with a new brush roller 1.

[0037] The transmission mechanism 20 includes a drive motor 21, a transmission component 22, a drive wheel 23, and a driven wheel 24. The drive motor 21 is mounted on a fixed plate 12, and the drive wheel 23 is sleeved on the shaft end of the drive motor 21. The driven wheel 24 is horizontally slidable on the fixed plate 12. The driven wheel 24 is mounted on a rotating shaft. The fixed plate 12 has a horizontal groove 122 corresponding to the position of the rotating shaft of the driven wheel 24. A sliding plate 123 is provided in the horizontal groove 122 and is connected to the rotating shaft. By sliding the sliding plate 123 in the horizontal groove 122, the rotating shaft is driven to slide, thereby driving the driven wheel 24 to slide. An elastic element 241 is provided in the horizontal groove 122. One end of the elastic element 241 abuts against the side wall of the horizontal groove 122, and the other end abuts against the sliding plate to prevent the rotating shaft from sliding and then returning to its original position. The transmission component 22 is mounted on the driving wheel 23 and the driven wheel 24; the driving motor 21 drives the driving wheel 23 at the end of the drive shaft to rotate, which drives the transmission component 22 to drive horizontally and drives the driven wheel 24 to rotate; the driving wheel 23, the driven wheel 24 and the transmission component 22 can adopt a sprocket and chain structure or a pulley and belt, etc.

[0038] Furthermore, both ends of the brush roller 1 are provided with follower wheels 101 that cooperate with the transmission component 22, so that when the brush roller 1 comes into contact with the transmission component 22, it can drive the brush roller 1 to rotate.

[0039] When the steel strip is being washed, the gradually worn brush roller 1 moves along the arc-shaped chute 121 towards the washing station under the support of the first swing arm structure 40. The follower wheel 101 at the end of the brush roller 1 moves synchronously, thereby pressing against the transmission component 22 and bending it. This causes the slidable driven wheel 24 to slide in the horizontal groove 122 and compress the elastic component 241. When the follower wheel 101 at the end of the brush roller 1 leaves the transmission component 22, the compressed elastic component 241 rebounds, pushing the driven wheel 24 back to its original position, thus keeping the transmission component 22 taut.

[0040] refer to Figure 3 , Figure 4 The rinsing mechanism 30 includes a hollow fixed shaft 31 and a rotating sleeve 32. The water passage contains water under a certain pressure. The two ends of the fixed shaft 31 extend out of two fixed plates 12 respectively. The fixed shaft 31 includes an intermediate shaft 311, two water supply rings 312 and two fixed pipes 313. A through water passage is formed inside the intermediate shaft 311. Two rows of water outlet holes 3111 are opened on the outer circumference of the intermediate shaft 311 and communicate with the water passage. The two rows of water outlet holes 3111 face two rinsing stations respectively. The water flow sprayed through the water outlet holes 3111 can rinse the steel belts at the two rinsing stations.

[0041] Two water supply rings 312 are respectively connected to both ends of the intermediate shaft 311, and both water supply rings 312 are connected to water channels. Each water supply ring 312 has three water passage holes 3121 arranged in a triangle, and each of the three water passage holes 3121 is equipped with a one-way valve. The one-way valve in the water passage hole 3121 located at the apex of the triangle allows water in the water supply ring 312 to be discharged outwards in one direction, while the one-way valves in the other two water passage holes 3121 allow water from outside the water supply ring 312 to enter the water supply ring 312 in one direction. One end of each of the two fixed pipes 313 is connected to one of the two water passage rings 312. External water is injected into the water channel with a certain pressure through the two fixed pipes 313 and the two water passage rings 312. The other end of each of the two fixed pipes 313 is fitted with a fixing rod, which fixes both ends of the fixed shaft 31 to the two fixing plates 12 of the mounting frame 10.

[0042] The rotating sleeve 32 is rotatably mounted on the intermediate shaft 311. Two rows of water spray nozzles are axially formed on the outer circumferential surface of the rotating sleeve 32. One row of water spray nozzles corresponds to one row of water outlet holes 3111 on the intermediate shaft 311, and the angle between the other row of water spray nozzles and the other row of water outlet holes is 90 degrees. Each water spray nozzle is equipped with a nozzle head, which can spray the water flowing out of the outlet onto the surface of the steel strip.

[0043] When the rotating sleeve 32 rotates to the point where one row of spray holes connects with the water outlet, the other row of spray holes is offset by 90 degrees from the other row of water outlet holes 3111 and moves closer to the replacement station, so that the spray holes in this row are blocked by the peripheral wall of the intermediate shaft 311, making it convenient to replace the nozzle.

[0044] Reference Figure 1 , Figure 5 Two sets of first swing arm structures 40, hinged to both ends of the rinsing mechanism 30, are sleeved on the fixed pipe 313 and abut against both ends of the rotating sleeve 32, so that when the first swing arm structure 40 swings, it can drive the rotating sleeve 32 to rotate synchronously, and switch the water spray nozzles to alternately rinse the steel belt.

[0045] The first swing arm structure 40 includes a first swing arm 41 and a first telescopic arm 42. The first swing arm 41 has a hinged end that is hinged to a fixed tube 313. The hinged end has an annular first groove 411. A central bushing is provided at the center of the first groove 411. A fan-shaped first protrusion 412 is connected between the outer edge of the central bushing and the inner edge of the first groove 411, and the first protrusion 412 protrudes out of the first groove 411. An arc-shaped slot 413 is provided in the first groove 411, and the arc-shaped slot 413 is located close to the first protrusion 412. Two circular holes 414 are provided between the arc-shaped slot 413 and the central bushing. One circular hole 414 is located close to the first protrusion 412, and the other circular hole 414 is located away from the first protrusion 412. The end face of the first swing arm 41 away from the hinged end has several first elongated holes, which contain compressed gas. One end of the first telescopic arm 42 is provided with several first long rods 421, which extend into the first long hole and slide under the pressure of compressed gas. The other end of the first telescopic arm 42 forms a U-shaped first bayonet 422 for engaging and supporting the brush roller 1 to slide within the arc-shaped groove 121. A first track groove 423 is provided at the position where the first telescopic arm 42 abuts against the surface of the fixed plate 12, and a positioning post is provided on the fixed plate 12 to cooperate with the first track groove 423, so that when the first swing arm structure 40 swings to the replacement station, it is locked by the positioning post, avoiding inaccurate swing position that would prevent the brush roller 1 from being taken out or put in from the replacement station.

[0046] Combination Figure 9 When the first swing arm structure 40 alternately moves between the washing station and the replacement station, the arc-shaped groove 413 in the first groove 411 is always connected to the water passage 3121 located at the apex of the triangle of the water supply ring 312. Water in the water supply ring 312 is continuously supplied to the first groove 411 of the first swing arm 41 through the water passage 3121 at the apex and the connected arc-shaped groove 413. When the first swing arm 41 swings to the replacement station or the washing station, the two round holes 414 alternately connect with the other two water passages 3121 on the water supply ring 312, draining the water in the first groove 411 into the water supply ring 312. By switching the water outlet of different round holes 414, the first swing arm structure 40 is driven to swing.

[0047] Reference Figure 1 , Figure 6The hinged end of the first swing arm structure 40 is connected to a second swing arm structure 50. The second swing arm structure 50 includes a second swing arm 51 and a second telescopic arm 52. One end of the second swing arm 51 has an annular second groove 511. A swing bushing is provided at the center of the second groove 511. A fan-shaped second protrusion 512 is connected between the outer edge of the swing bushing and the inner edge of the second groove 511, and the second protrusion 512 protrudes out of the second groove 511. Several second elongated holes are provided on the end face of the other end of the second swing arm 51, and the second elongated holes contain compressed gas. One end of the second telescopic arm 52 is provided with several second elongated rods 521. The second elongated rods 521 extend into the second elongated holes and can be squeezed and slid within the second elongated holes by the compressed gas. The other end of the second telescopic arm 52 forms a U-shaped second bayonet 522, which is used to engage and support the brush roller 1 to slide within the arc-shaped slide groove 121. The second telescopic arm 52 has a second track groove 523 at the position where it abuts against the surface of the fixed plate 12, so that when the second swing arm structure 50 swings to the replacement position, it is locked with the positioning post on the fixed plate 12, thus avoiding the inaccurate swing position that would prevent the brush roller 1 from being taken out or put in from the upward slot.

[0048] Combination Figure 9 The second swing arm 51 has a second groove 511 at one end that is engaged with the hinge end of the first swing arm 41, so that the first groove 411 and the second groove 511 are connected. The first protrusion 412 extends into the second groove 511 and the second protrusion 512 extends into the first groove 411, dividing the first groove 411 and the second groove 511 into two opposing fan-shaped areas. One fan-shaped area is set as a power chamber, which is connected to the arc-shaped slot 413 and the round hole 414. The other fan-shaped area is provided with an arc-shaped spring, the two ends of which abut against the first protrusion 412 and the second protrusion 512 respectively, supporting the first swing arm 41 and the second swing arm 51 in the minimum included angle state.

[0049] Please see Figure 7 , Figure 8 Both the first swing arm structure 40 and the second swing arm structure 50 are equipped with a control structure 60. The control structures 60 in the first swing arm structure 40 and the second swing arm structure 50 are configured in the same way. Here, the control structure 60 in the first swing arm structure 40 will be described.

[0050] The control structure 60 includes a control chamber 61 and a control component 62. (Combined) Figure 10The control chamber 61 includes a sliding cavity 611 disposed between several first elongated holes. The sliding cavity 611 extends to a hinged end, communicating with a first groove 411 and corresponding to a circular hole 414 near the first protrusion 412. Two opposing guide grooves 6111 are formed on the inner wall of the sliding cavity 611, and each guide groove 6111 has an inclined slot at its end away from the first groove 411. The control chamber 61 includes a pressure chamber 612, which contains hydraulic oil and is connected to the sliding cavity 611 via the inclined slot. The pressure chamber 612 is connected to a pressure channel 614, which is connected to a moving cavity 613, which is connected to the sliding cavity 611.

[0051] The control assembly 62 is disposed within the control chamber 61 and includes a sliding rod 621 slidably disposed within a sliding cavity 611, a reset member 622 sleeved on the sliding rod, and a pressure rod 623 abutting against one end of the sliding rod 611. One end of the sliding rod 621 is provided with two sliding blocks 6211, which are slidably disposed within two guide grooves 6111 respectively. A compression spring is also sleeved on the end of the sliding rod 621 with the sliding blocks 6211; one end of the compression spring is fixed to the inner wall of the sliding cavity 611, and the other end abuts against the two sliding blocks 6211. The other end of the sliding rod 621 is hinged to a sealing block 6212 that cooperates with the sliding cavity 611 to seal the circular hole 414 near the first protrusion 412.

[0052] A reset member 622 is sleeved in the middle of the sliding rod 621, and the reset member 622 extends into the moving cavity 613. The reset member 622 includes a sleeve 6221 and a push rod 6222 arranged parallel to each other, and the sleeve 6221 and the push rod 6222 are connected to each other by a connecting plate. The sleeve 6221 is sleeved on the sliding rod 621, and the push rod 6222 is slidably arranged in the moving cavity 613, with one end inserted into the pressure channel 614. A pressure rod 623 is arranged in the pressure cavity 612 communicating with the pressure channel 614, and the pressure rod 623 vertically abuts against one end of the sliding rod 611. The pressure rod 623 includes an upper pressure rod 6231 and a lower pressure rod 6232, and the upper pressure rod 6231 and the lower pressure rod 6231 are connected by a sliding member. The upper pressure rod 6231 is used to abut against the sliding block 6211 that slides into the inclined slot, and the lower pressure rod 6232 extends out of the pressure cavity 612. Specifically, each of the two fixed plates 12 is provided with two stops, which are located below the horizontal line of the two replacement stations. When the first swing arm structure 40 or the second swing arm structure 50 swings to the replacement station, it slides into the pressure chamber 612 by pushing against the lower pressure rod 6232 through the stops.

[0053] The implementation principle of the brush roller online replacement device in this application embodiment is as follows: The first swing arm structure 40 supports the brush roller 1 to slide in the arc-shaped slide groove 121, so that the brush roller 1 abuts against the surface of the steel strip for brushing. The compression of the compressed gas in the first elongated hole causes the first telescopic arm 42 to extend and push the brush roller 1 to slide along the arc-shaped slide groove 121 towards the brushing station. As the brush roller 1 wears, the first swing arm structure 40 enters the brushing station. The lower pressure rod 6232 of the pressure rod 623 is pushed by the stop block and slides close to the upper pressure rod 6231 in the pressure chamber 612. The hydraulic oil in the pressure chamber 612 is squeezed into the pressure channel, pushing the push rod 6222 to slide to the other end of the moving chamber 613. At the same time, it drives the sleeve 6221 to disengage from the sliding block 6211 that abuts the sliding rod 611. Then the hydraulic oil further pushes the upper pressure plate 6231 to slide upward, and the sliding block that is stuck in the inclined slot rotates into the guide groove 6111.

[0054] At this time, the compression spring of the sliding block extends, pushing the sliding rod 621 to slide along the guide groove, which drives the sealing block 6212 hinged at the other end to move, blocking the round hole 414 near the first protrusion 412, so that the water that continuously enters the power chamber through the arc groove 413 cannot be discharged through the round hole 414 for circulation. The water pressure in the power chamber increases, pushing the second protrusion 512 of the second swing arm 51 to rotate. The fan-shaped area occupied by the power chamber increases, squeezing the arc-shaped spring in another fan-shaped area to compress and store energy, thereby driving the second swing arm structure 50 to support the new brush roller 1 to swing, so that the brush roller 1 slides along the arc-shaped slide groove 121 to abut against the steel strip. The second swing arm structure 50 drives the second protrusion 512 to rotate in the first groove 411, opening the round hole 414 away from the first protrusion 412. The water in the power chamber flows into the water supply ring 312 through the round hole 414, relieving the pressure in the power chamber.

[0055] The first protrusion 412 of the first swing arm structure 40 is not affected by the pressure in the power chamber. The arc-shaped spring releases its elastic force to push the first protrusion 414 to rotate, causing the first swing arm structure 40 to swing upward to the replacement position. The lower pressure rod 6232 of the control structure 60 extends out of the pressure chamber 612, causing the reset member 622 to slide. The reset member 622 pushes the sliding block 6211 to slide along the guide groove 6111 to compress the spring and lock it in the oblique slot against the upper pressure rod 6231.

[0056] Specifically, several brush roller replacement devices can be installed on the rinsing section to brush the upper and lower surfaces of the steel strip. The brush roller replacement device for brushing the upper surface of the steel strip is located above the steel strip, and a hoisting device is installed above the corresponding replacement station. The hoisting device secures both ends of the brush roller 1, removes the old brush roller 1 from the groove of the arc-shaped slide 121, and retrieves a new brush roller 1 for replacement. The roller replacement device for brushing the lower surface of the steel strip is located below the steel strip, with the groove of its arc-shaped slide 121 facing the ground. A lifting assembly is installed below the corresponding replacement station, and a support frame that can be slidably pulled out to the operating side of the rinsing section is installed on the lifting assembly. The support frame cooperates with the groove of the arc-shaped slide 121. When the brush roller 1 is loaded, the lifting assembly lowers and pulls out the support frame, places the brush roller 1 on the support frame and pushes it back onto the lifting assembly. Then, the support frame drives the brush roller 1 to rise, so that the brush roller 1 enters the first slot of the first telescopic arm 42 and moves along the arc-shaped slide 11 to the brushing station.

[0057] In one embodiment, the brush roller replacement device at both ends of the rinsing section can also be used as a squeezing device. It only requires filling the water passage of the rinsing mechanism 30 with gas of a certain pressure and replacing the brush roller 1 with a squeezing roller.

[0058] The brush roller replacement device provided by the present invention uses a first swing arm structure 40 and a second swing arm structure 50 to alternately support the brush roller 1 to brush the steel strip. The control structure 60, which is respectively set in the first swing arm structure 40 and the second swing arm structure 50, can be automatically triggered when the brush roller is worn to a certain extent to replace the brush roller 1, which effectively improves the convenience of brush roller replacement.

[0059] The embodiments described above merely illustrate implementation methods of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An online brush roller replacement device for quickly replacing brush rollers (1) on a rinsing section, characterized in that, include: Mounting bracket (10) is installed on the flushing section; Two transmission mechanisms (20) are provided and fixedly mounted on the mounting frame (10) for driving the brush roller (1) to rotate; A rinsing mechanism (30) is disposed on the mounting bracket (10) and located above the transmission mechanism (20); The first swing arm structure (40) has two parts, which are respectively hinged to both ends of the rinsing mechanism (30) to support the brush roller (1) to swing ninety degrees on one side of the rinsing mechanism (30); There are two second swing arm structures (50), which are respectively hinged to two first swing arm structures (40) to support the brush roller (1) to swing ninety degrees on the other side of the rinsing mechanism (30); A control structure (60) is provided in each of the first swing arm structures (40) and each of the second swing arm structures (50) for controlling the swing of the first swing arm structure (40) and the second swing arm structure (50).

2. The brush roller online replacement device according to claim 1, characterized in that: The mounting frame (10) is provided with several parallel connecting rods (11), and fixed plates (12) are provided at both ends of the several connecting rods (11). Both fixed plates (12) are provided with upward-arched arc-shaped grooves (121). An upward-opening slot is provided in the middle of the arc-shaped groove (121), and the slot forms a replacement station. The first and last ends of the arc-shaped groove (121) are set as brushing stations.

3. The brush roller online replacement device according to claim 1, characterized in that: The flushing mechanism (30) includes a fixed shaft (31) and a rotating sleeve (32). The fixed shaft (31) includes a hollow intermediate shaft (311). A through water passage is formed inside the intermediate shaft (311). Water supply rings (312) are connected to both ends of the intermediate shaft (311). The water supply rings (312) have three water passage holes (3121). Each of the three water passage holes (3121) is equipped with a one-way valve, and each of the three water passage holes is connected to the water passage. The rotating sleeve (32) is rotatably sleeved on the intermediate shaft (311).

4. The brush roller online replacement device according to claim 3, characterized in that: The first swing arm structure (40) includes a first swing arm (41) and a first telescopic arm (42). The first swing arm (41) is provided with a hinge end, and a first groove (411) is provided on the hinge end. A central bushing is provided at the center of the first groove (411), and a first protrusion (412) is provided between the central bushing and the first groove (411). An arc-shaped slot (413) is provided in the first groove (411), and the arc-shaped slot (413) is located close to the first protrusion (412). Two round holes (414) are provided between the first swing arm (41) and the central bushing; a first long hole is provided on the end face away from the hinge end of the first swing arm (41), and the first long hole contains compressed gas; a first long rod (421) is connected between one end of the first telescopic arm (42) and the first long hole, and the first long rod (421) is squeezed and slid in the first long hole by the compressed gas; a U-shaped first bayonet (422) is provided at the other end of the first telescopic arm (42) for engaging and supporting the brush roller (1) to slide in the arc-shaped groove (121).

5. The brush roller online replacement device according to claim 4, characterized in that: The second swing arm structure (50) includes a second swing arm (51) and a second telescopic arm (52). One end of the second swing arm (51) is provided with a second groove (511) and a second protrusion (512) is provided in the second groove (511). The other end of the second swing arm (51) is provided with a plurality of second elongated holes, which contain compressed gas. One end of the second telescopic arm (52) is connected to a first elongated hole with a second elongated rod (521). The second elongated rod (521) is squeezed and slid in the second elongated hole by the compressed gas. The other end of the second telescopic arm (52) is provided with a U-shaped second bayonet (522) for engaging and supporting the brush roller (1) to slide in the arc-shaped groove (121).

6. The brush roller online replacement device according to claim 4, characterized in that: The control structure (60) includes a control chamber (61) and a control component (62), the control component (62) being disposed within the control chamber (61); the control chamber (61) is provided with a sliding cavity (611), the sliding cavity (611) communicating with a first groove (411); the inner wall of the sliding cavity (611) is provided with two opposing guide grooves (6111), and each of the two guide grooves (6111) having an inclined slot at one end away from the first groove (411); the control chamber (61) is provided with a pressure chamber (612), the pressure chamber (612) communicating with the sliding cavity (611) through the inclined slot; the pressure chamber (612) is connected to a pressure channel, the pressure channel being connected to a moving cavity (613), the moving cavity (613) communicating with the sliding cavity (611).

7. The brush roller online replacement device according to claim 6, characterized in that: The control component (62) includes a sliding rod (621) disposed in a sliding cavity (611), a reset member (622) sleeved on the sliding rod, and a pressure rod (623) abutting against one end of the sliding rod (611); one end of the sliding rod (621) is provided with two sliding blocks (6211), which are respectively disposed in two guide grooves (6111); one end of the sliding rod (621) is also sleeved with a compression spring, which compresses... One end of the spring is fixed to the inner wall of the sliding cavity (611), and the other end abuts against the two sliding blocks (6211); the other end of the sliding rod (621) is hinged to a sealing block (6212) to seal the round hole (414) near the first protrusion (412); a reset member (622) is sleeved in the middle of the sliding rod (621), the reset member (622) extends into the moving cavity (613), and a pressure rod (623) is provided in the pressure cavity (612).

8. The brush roller online replacement device according to claim 7, characterized in that: The reset component (622) includes a sleeve (6221) and a push rod (6222) arranged parallel to each other. The sleeve (6221) and the push rod (6222) are connected by a connecting plate. The sleeve (6221) is sleeved on the sliding rod (611). The push rod (6222) is slidably arranged in the moving cavity (613) and one end is inserted into the pressure channel.

9. The brush roller online replacement device according to claim 7, characterized in that: The pressure rod (623) includes an upper pressure rod (6231) and a lower pressure rod (6232), which are connected by a sliding member. The upper pressure rod (6231) extends at least partially out of the pressure chamber (612) to abut against the sliding block (6211) that slides into the inclined slot. The lower pressure rod (6232) extends at least partially out of the pressure chamber (62) to slide and squeeze hydraulic oil into the pressure chamber (612) when subjected to pressure.

10. The brush roller online replacement device according to claim 5, characterized in that: The second swing arm (51) is hinged to the first swing arm (41) at one end and fastened together. The first protrusion (412) extends into the second groove (511) and the second protrusion (512) extends into the first groove (411). The first protrusion (412) and the second protrusion (512) divide the space enclosed by the first groove (411) and the second groove (511) into two opposing fan-shaped areas. One of the fan-shaped areas is the power chamber. The power chamber is connected to the water passage through the arc-shaped slot (413) and the water passage hole (3121). When the water pressure in the power chamber increases, it pushes the first protrusion (412) or the second protrusion (512) away from each other. An arc-shaped spring is provided in the other fan-shaped area. The two ends of the arc-shaped spring abut against the first protrusion (412) and the second protrusion (512) respectively.

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