Coiled material pretreatment device for spraying rare earth antibacterial color-coated sheet

Abstract

The invention relates to the field of color-coated sheet processing, in particular to a pretreatment device for a coiled material for spraying a rare-earth antibacterial color-coated sheet, and aims to solve the problem that oil stains on the surface are not thoroughly cleaned during pretreatment of the coiled material for spraying the color-coated sheet in the prior art. A pressing roller used for pressing the coiled material into the cleaning pool is rotationally connected into the cleaning pool. The cleaning mechanism is arranged in the cleaning pool and used for cleaning oil stains on the front face and the back face of the coiled material immersed in the cleaning liquid. The cleaning mechanism comprises two side plates arranged on the inner walls of the two sides of the cleaning pool, a plurality of cleaning frames installed between the two side plates and driving pieces installed on the side plates and used for driving the cleaning frames to move in the width direction of the coiled materials in a reciprocating mode when the pressing rollers rotate. When the coiled material moves in the cleaning liquid, oil stains on the front and back surfaces of the coiled material are scrubbed through the cleaning mechanism, so that the oil stain cleaning effect is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of color-coated steel sheet processing, and more particularly to a pretreatment device for spraying rare earth antibacterial color-coated steel sheet rolls. Background Technology

[0002] In the production process of color-coated steel sheets, the cleanliness of the coil surface directly affects the adhesion of subsequent coatings and product quality. Current coil pretreatment equipment usually uses spraying to clean oil stains on the coil surface. Although spraying can remove some oil stains, it consumes a lot of water and has limited cleaning effect on certain oil stains (such as mineral oil, rust-preventive oil, etc.), which can easily cause secondary pollution or water stains.

[0003] Especially in the production of rare earth antibacterial color-coated steel sheets, the coating requires a higher level of cleanliness from the substrate. If the pretreatment is not thorough, residual oil will affect the uniformity and adhesion of the antibacterial coating, thereby reducing the antibacterial performance and durability of the product. Therefore, there is an urgent need for an efficient and stable pretreatment device that can thoroughly remove oil from the surface of the coil material to ensure the quality of subsequent spraying processes. To this end, this solution proposes a coil material pretreatment device for spraying rare earth antibacterial color-coated steel sheets. Summary of the Invention

[0004] The present invention proposes a pretreatment device for rare earth antibacterial color-coated steel sheet spraying coil, which solves the problem of incomplete surface oil removal during the pretreatment of color-coated steel sheet spraying coil in the prior art.

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

[0006] A pretreatment device for rare earth antibacterial color-coated steel sheet spraying coil material includes:

[0007] A cleaning tank for holding cleaning fluid for cleaning rolls of material, wherein a pressure roller for pressing the rolls of material into the cleaning tank is rotatably connected inside the cleaning tank.

[0008] A cleaning mechanism is installed in a cleaning tank and is used to clean oil stains on both sides of the roll material immersed in cleaning solution. The cleaning mechanism includes two side plates on the inner walls of both sides of the cleaning tank, multiple cleaning frames installed between the two side plates, and a driving component installed on the side plates to drive the cleaning frames to reciprocate along the width direction of the roll material when the pressure roller rotates. Multiple wiping plates are fixed on the inner walls of the two long sides of the cleaning frames and are arranged along their width direction. The roll material passes through the inner side of the cleaning frame and abuts against the wiping plates.

[0009] A rinsing mechanism, which is installed on top of the cleaning tank and is used to rinse the surface of the roll material after it has been cleaned inside the cleaning tank;

[0010] The drying unit is located on one side of the washing tank and is used to dry the moisture on the surface of the washed roll material.

[0011] It also includes a replacement mechanism installed on the cleaning tank and connected to the pressure roller drive. When the pressure roller rotates, it drives the replacement mechanism to input the upper layer of cleaning liquid in the cleaning tank to the bottom of the cleaning tank.

[0012] The above technical solution involves immersing the roll material in the cleaning solution and simultaneously cleaning the oil stains on both sides of the roll material by a cleaning mechanism while the roll material moves in the cleaning solution. This effectively improves the cleaning effect of oil stains. At the same time, the replacement mechanism helps to extend the service life of the cleaning solution and avoids frequent replacement of the cleaning solution.

[0013] As a further improvement to the above solution, both ends of the pressure roller are fixed with rotating shafts coaxially arranged therewith, and the rotating shafts are rotatably connected to the inner wall of the cleaning tank. A drive motor for driving the rotating shafts to rotate is installed on the inner wall of the cleaning tank.

[0014] As a further improvement to the above solution, each of the two side plates has a mounting groove for installing a drive component. The drive component includes a crankshaft rotatably connected in the mounting groove and a transmission shaft rotatably connected to the bottom of the side plate. The crankshaft is a multi-arm crankshaft, and a connecting sleeve is movably sleeved on multiple connecting rod journals of the crankshaft. A connecting rod that is hinged to the end of the cleaning frame is fixed on the outer periphery of the connecting sleeve. One end of the transmission shaft is fixedly connected to one end of the main journal of the crankshaft, and a driven bevel gear is fixed on the other end of the transmission shaft. A driving bevel gear that meshes with the driven bevel gear is sleeved on the outer periphery of the shaft.

[0015] As a further improvement to the above solution, a limiting component is installed between the top surface of the cleaning frame and the two side plates. The limiting component includes a limiting rod fixed to the side plate and a limiting sleeve movably sleeved around the limiting rod. The limiting sleeve is fixedly connected to the top surface of the cleaning frame.

[0016] As a further improvement to the above solution, the rinsing mechanism includes two fixed plates fixed on both sides of the top of the cleaning tank, two hollow mounting plates fixed between the two fixed plates, and a water pump installed on one of the fixed plates for conveying the cleaning liquid in the cleaning tank to the two mounting plates. The two mounting plates are located on the front and back sides of the roll material respectively, and multiple nozzles communicating with the inside of the mounting plates are installed on the side of the two mounting plates facing the roll material.

[0017] As a further improvement to the above solution, two squeegees are fixed between the two fixing plates. The two squeegees are located on the front and back sides of the roll material respectively. The squeegees are arranged along the width direction of the roll material, and one long side of the squeegee abuts against the surface of the roll material.

[0018] As a further improvement to the above solution, the drying mechanism includes a drying chamber located on one side of the washing tank and a guide roller rotatably connected between two fixed plates for horizontally guiding the roll material into the drying chamber.

[0019] As a further improvement to the above solution, the replacement mechanism is provided in two sets, and the two sets of replacement mechanisms are respectively installed on the long side walls of the two sides of the cleaning pool. The replacement mechanism includes a suction pipe installed on the upper part of the inner wall of the cleaning pool, a drain pipe installed on the lower part of the inner wall of the cleaning pool, and a pumping component installed on the outer wall of the cleaning pool for sucking the cleaning liquid in the cleaning pool from the suction pipe and discharging it from the drain pipe.

[0020] As a further improvement to the above solution, one end of the rotating shaft extends to the outside of the cleaning tank. The water pumping assembly includes an air cylinder and a filter box installed on the outer wall of the cleaning tank, and a rotating wheel coaxially fixed to the end of the rotating shaft located outside the cleaning tank. A piston plate is provided inside the air cylinder. A linkage rack is fixed to one end of the piston plate. The other end of the linkage rack extends to the outside of the air cylinder and is fixed to a fixing frame. An actuating column is fixed at a position on one side of the rotating wheel that is off-center from the center and is movably inserted into the inside of the fixing frame. A placement frame is fixed to the inner wall of the filter box. A filter screen is placed on the top surface of the placement frame. An operation port for replacing the filter screen is opened on one side of the filter box. A sealing plate for sealing itself is detachably installed on the outside of the operation port by screws. An inlet pipe and an outlet pipe connected to a drain pipe are installed on the air cylinder. The other end of the inlet pipe is connected to the bottom of the filter box. A flexible hose connected to a suction pipe is installed on the top of the filter box. One-way valves are installed on both the inlet pipe and the drain pipe.

[0021] As a further improvement to the above solution, the suction pipe is movably installed on the inner wall of the cleaning tank, and a linkage mechanism for driving the suction pipe to move up and down is installed on the outer wall of the cleaning tank. The linkage mechanism includes a screw rotatably connected to the outer wall of the cleaning tank, a lifting plate threaded around the outer periphery of the screw, and multiple connecting rods fixed to the top surface of the lifting plate. The other end of the connecting rod extends to the inner side of the cleaning tank and is fixedly connected to the suction pipe. A linkage gear that meshes with the linkage rack is fixed at the bottom of the screw.

[0022] The above technical solution facilitates the discharge of wastewater from the cleaning tank 1 through the drain pipe.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By setting up a cleaning mechanism and pressure rollers, when dealing with oil stains on the surface of the roll material, the pressure rollers can be used to press the roll material into the cleaning solution inside the cleaning tank. At the same time, the rotation of the pressure rollers drives the roll material to move, thereby wiping the oil stains on the surface of the roll material immersed in the cleaning solution, effectively improving the cleaning effect of the roll material.

[0025] 2. By setting up a rinsing mechanism, the surface of the roll material cleaned by the cleaning mechanism can be further rinsed to remove residual oil stains and further improve the cleaning effect.

[0026] 3. By setting up a replacement mechanism, the replacement mechanism is driven to run simultaneously with the rotation of the pressure roller, thereby replacing the cleaning fluid containing more impurities and oil in the upper part of the cleaning tank to the lower part of the cleaning tank, thus ensuring the uniformity of the cleaning fluid inside the cleaning tank, and further extending the service life of the cleaning fluid and the cleaning effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the pumping components and linkage mechanism;

[0029] Figure 3 A schematic diagram of the cleaning mechanism, rinsing mechanism, and wiper blade;

[0030] Figure 4 This is a structural diagram of the cleaning mechanism;

[0031] Figure 5 This is a structural schematic diagram of the crankshaft and the limiting component;

[0032] Figure 6 This is a schematic diagram of the crankshaft and connecting rod structure;

[0033] Figure 7 This is a schematic diagram of the rinsing mechanism;

[0034] Figure 8 This is a schematic diagram of the water intake pipe and the water drain pipe.

[0035] Figure 9 This is a cross-sectional view of the filter box.

[0036] Explanation of key symbols:

[0037] 1. Cleaning tank; 2. Cleaning mechanism; 3. Suction pipe; 4. Pressure roller; 5. Drive motor; 6. Air pump; 7. Linkage rack; 8. Rotary wheel; 9. Fixing frame; 10. Inlet pipe; 11. Outlet pipe; 12. Fixing plate; 13. Water pump; 14. Mounting plate; 15. Scraper; 16. Drying chamber; 17. Rotating shaft; 18. Guide roller; 19. Nozzle; 20. Drain pipe; 21. Roll material; 22. Linkage gear; 23. Screw; 24. Lifting plate; 25. Connecting rod; 26. Hose; 27. Filter box; 28. Filter screen; 29. ​​Placement frame; 30. Sealing plate; 32. Cleaning port.

[0038] 201. Side plate; 202. Cleaning frame; 203. Drive shaft; 204. Wiping plate; 205. Crankshaft; 206. Limiting sleeve; 207. Limiting rod; 208. Connecting cylinder; 209. Connecting rod. Detailed Implementation

[0039] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] Example 1:

[0041] Please combine Figure 1 - Figure 7 This embodiment of a rare earth antibacterial color-coated steel sheet pretreatment device for spraying rolls includes:

[0042] The cleaning tank 1 is used to hold the cleaning liquid for cleaning the roll material 21. A pressure roller 4 for pressing the roll material 21 into the cleaning tank 1 is rotatably connected inside the cleaning tank 1. Both ends of the pressure roller 4 are fixed with a rotating shaft 17 coaxially arranged with it. The rotating shaft 17 is rotatably connected to the inner wall of the cleaning tank 1. A drive motor 5 for driving the rotating shaft 17 to rotate is installed on the inner wall of the cleaning tank 1. A drive pulley is sleeved on the output shaft of the drive motor 5. A driven pulley is sleeved on the outside of the rotating shaft 17. A belt is installed between the drive pulley and the driven pulley. During cleaning, the roll material 21 is passed through the bottom of the pressure roller 4, so that the roll material can be immersed in the cleaning liquid in the cleaning tank 1. After the drive motor 5 is started, it drives the pressure roller 4 to rotate, thereby driving the roll material 21 to move inside the cleaning tank 1.

[0043] Cleaning mechanism 2, located in cleaning tank 1, is used to clean oil stains on both sides of the roll material 21 immersed in cleaning solution. Cleaning mechanism 2 includes two side plates 201 on the inner walls of both sides of cleaning tank 1, multiple cleaning frames 202 installed between the two side plates 201, and a driving component installed on the side plates 201 to drive the cleaning frames 202 to reciprocate along the width direction of the roll material 21 when the pressure roller 4 rotates. Multiple wiping plates 204 are fixed on the inner walls of the long sides of the cleaning frames 202, arranged along their width direction. The roll material 21 passes through the inner side of the cleaning frames 202 and abuts against the wiping plates 204. Each of the two side plates 201 has a mounting groove on its opposite side for mounting the driving component. The driving component includes a crankshaft 205 rotatably connected in the mounting groove and a transmission shaft 203 rotatably connected to the bottom of the side plate 201. The crankshaft 205 is a multi-arm crankshaft, and the crankshaft 205 has multiple connecting rod shafts. Each neck is movably fitted with a connecting cylinder 208. The outer periphery of the connecting cylinder 208 is fixed with a connecting rod 209 hinged to the end of the cleaning frame 202. One end of the drive shaft 203 is fixedly connected to one end of the main journal of the crankshaft 205. The other end of the drive shaft 203 is fixed with a driven bevel gear. The outer periphery of the rotating shaft 17 is fitted with a driving bevel gear that meshes with the driven bevel gear. When the roll material enters the cleaning tank 1, it first passes through multiple cleaning frames 202, then passes under the pressure roller 4, and then rises and drills out of the cleaning tank 1. While the pressure roller 4 is rotating, it will drive the drive shaft 203 to rotate. After the drive shaft 203 rotates, it will drive the crankshaft 205 to rotate at the same time. After the crankshaft 205 rotates, it will drive the cleaning frame 202 to move back and forth along the width direction of the roll material 21 through the connecting rod 209, so that the wiping plate 204 wipes back and forth on both sides of the roll material 21, achieving the purpose of cleaning the oil stains on the surface of the roll material 21.

[0044] A rinsing mechanism is installed on top of the cleaning tank 1 and is used to rinse the surface of the roll material after it has been cleaned inside the cleaning tank 1. The rinsing mechanism includes two fixed plates 12 fixed on both sides of the top of the cleaning tank 1, two hollow mounting plates 14 fixed between the two fixed plates 12, and a water pump 13 installed on one of the fixed plates 12 to transport the cleaning fluid in the cleaning tank 1 to the two mounting plates 14. The two mounting plates 14 are located on the front and back sides of the roll material 21, and multiple nozzles 19 connected to the inside of the mounting plates 14 are installed on the side of the two mounting plates 14 facing the roll material 21. After the roll material is drilled out of the cleaning tank 1, it passes between the two fixed plates 12. The water pump 13 draws the cleaning fluid from the cleaning tank 1 into the two fixed plates 12 and then sprays it out from the nozzles 19 to rinse the front and back sides of the roll material 21, thereby further cleaning the oil stains remaining on the surface of the roll material 21.

[0045] The drying mechanism is located on one side of the cleaning tank 1 and is used to dry the moisture on the surface of the washed roll material. The drying mechanism includes a drying chamber 16 located on one side of the cleaning tank 1 and a guide roller 18 rotatably connected between two fixed plates 12 for horizontally guiding the roll material into the drying chamber 16. A hot air fan is provided inside the drying chamber 16. After the washed roll material is guided by the guide roller 18, it enters the drying chamber 16 horizontally, and the residual moisture on its surface is dried by the hot air inside the drying chamber 16.

[0046] In this embodiment, limiting components are installed between the top surface of the cleaning frame 202 and the two side plates 201. The limiting components include a limiting rod 207 fixed on the side plate 201 and a limiting sleeve 206 movably sleeved on the outer periphery of the limiting rod 207. The limiting sleeve 206 is fixedly connected to the top surface of the cleaning frame 202. The setting of the limiting components ensures that the cleaning frame 202 can only move along the width direction of the roll material 21 when it reciprocates, thereby ensuring the stability of the reciprocating movement of the cleaning frame 202.

[0047] In this embodiment, two scraper blades 15 are fixed between the two fixing plates 12. The two scraper blades 15 are located on the front and back sides of the roll material 21, respectively. The scraper blades 15 are arranged along the width direction of the roll material 21, and one long side of the scraper blade 15 abuts against the surface of the roll material 21. The scraper blades 15 are located on the side of the guide roller 18 near the rinsing mechanism. After the roll material 21 is rinsed, the water remaining on its surface is scraped off by the scraper blades 15, thereby reducing the amount of residual moisture on the surface of the roll material 21, so that the roll material 21 can be dried by the drying mechanism more quickly.

[0048] In this embodiment, a drain pipe is installed at the bottom of one side of the cleaning tank 1, and the inner wall of the bottom of the cleaning tank 1 is inclined downward toward the side where the drain pipe is installed. The drain pipe facilitates the discharge of wastewater from the cleaning tank 1.

[0049] Example 2:

[0050] Combination Figure 1 , Figure 2 , Figure 3 and Figures 8-9This embodiment, based on embodiment 1, further improves upon the following: it also includes a displacement mechanism installed on the cleaning tank 1 and connected to the pressure roller 4 for transmission. When the pressure roller 4 rotates, it drives the displacement mechanism to operate, so as to input the upper layer of cleaning liquid in the cleaning tank 1 into the bottom of the cleaning tank 1. Two sets of displacement mechanisms are provided, and the two sets of displacement mechanisms are respectively installed on the two long side walls of the cleaning tank 1. The displacement mechanism includes a suction pipe 3 installed on the upper part of the inner wall of the cleaning tank 1, a drain pipe 20 installed on the lower part of the inner wall of the cleaning tank 1, and a drain pipe 20 installed on the outer wall of the cleaning tank 1 for discharging the cleaning liquid. The cleaning solution in the washing tank 1 is drawn in through the suction pipe 3 and discharged through the drain pipe 20. The suction pipe 3 has an inlet along its length. When the pumping unit is running, it draws in the cleaning solution from the upper layer inside the washing tank 1 through the suction pipe 3 and then discharges it to the bottom of the washing tank 1 through the drain pipe 20. This helps to transport the cleaning solution with a lower concentration in the upper part of the washing tank 1 to the lower layer, which helps to ensure the uniformity of the cleaning solution concentration in the washing tank 1 and avoids the upper layer of cleaning solution having a low concentration due to excessive oil stains, thus affecting the cleaning effect.

[0051] One end of the rotating shaft extends to the outside of the cleaning tank 1. The pumping assembly includes an air cylinder 6 and a filter box 27 installed on the outer wall of the cleaning tank 1, and a rotating wheel 8 coaxially fixed to the end of the rotating shaft 17 located outside the cleaning tank 1. A piston plate is provided inside the air cylinder 6. A linkage rack 7 is fixed to one end of the piston plate. The other end of the linkage rack 7 extends to the outside of the air cylinder 6 and is fixed to a fixing frame 9. An actuating column is fixed at a position off-center on one side of the rotating wheel 8, which is movably inserted into the inside of the fixing frame 9. A placement frame 29 is fixed to the inner wall of the filter box 27. A filter screen 28 is placed on the top surface of the placement frame 29. An operation port 31 for replacing the filter screen 28 is opened on one side of the filter box 27. A sealing plate 30 for sealing itself is detachably installed on the outside of the operation port 31 by screws. An inlet pipe 10 and an outlet pipe connected to a drain pipe 2011 are installed on the air cylinder. The inlet pipe 10 The other end is connected to the bottom of the filter box 27. The top of the filter box 27 is equipped with a flexible hose 26 connected to the suction pipe 3. Both the inlet pipe and the outlet pipe are equipped with one-way valves. The pumping assembly can drive the rotating wheel 8 to rotate while the rotating shaft 17 rotates. After the rotating wheel 8 rotates, it drives the fixed frame 9 and the linkage rack 7 to move back and forth along the axial direction of the air cylinder 6, thereby driving the piston plate to move back and forth inside the air cylinder 6. This allows the cleaning liquid in the cleaning tank 1 to be pumped into the filter box 27. After being filtered by the filter screen 28, the cleaning liquid enters the air cylinder 6 from the inlet pipe 10 and is then discharged into the outlet pipe 20 through the outlet pipe 11. This achieves the purpose of driving the replacement mechanism to operate by rotating the pressure roller 4. In addition, while replacing the cleaning liquid inside the cleaning tank 1, it can also filter out solid impurities in the cleaning liquid.

[0052] In this embodiment, when replacing the filter, simply open the sealing plate 30, remove the old filter, place the new filter into the top of the placement frame inside the filter box 27 through the operation port 31, and finally close the sealing plate 30.

[0053] Example 3: Combination Figure 1 , Figure 2 and Figure 8 This embodiment, based on Embodiment 1, further improves upon the following: the suction pipe 3 is movably installed on the inner wall of the cleaning tank 1, and a linkage mechanism for driving the suction pipe 3 to move up and down is installed on the outer wall of the cleaning tank 1. The linkage mechanism includes a screw 23 rotatably connected to the outer wall of the cleaning tank 1, a lifting plate 24 threaded onto the outer periphery of the screw 23, and multiple connecting rods 25 fixed to the top surface of the lifting plate 24. The other end of the connecting rod 25 extends to the inner side of the cleaning tank 1 and is fixedly connected to the suction pipe 3. The bottom of the screw 23 is fixed with a linkage mechanism. The rack 7 meshes with the linkage gear 22. During the reciprocating movement of the rack 7, the linkage gear 22 will drive the linkage gear 22 to rotate reciprocally. After the linkage gear 22 rotates reciprocally, it can drive the screw 23 to rotate synchronously. During the reciprocating rotation of the screw 23, the lifting plate 24 will move up and down reciprocally. Finally, the purpose of driving the suction pipe 3 to move up and down in the cleaning tank 1 at the same time as the pressure roller 4 rotates can be achieved. This makes it easier to replace the cleaning liquid at different depths in the cleaning tank 1 to the bottom of the cleaning tank 1, thereby further enhancing the effect of mixing the concentration of the cleaning liquid.

[0054] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A rare earth antibacterial color-coated panel spray coiled material pretreatment device, characterized in that, The utility model provides a cleaning device for roll material, which comprises a cleaning tank for containing cleaning liquid for cleaning the roll material, a pressing roller rotatably connected in the cleaning tank for pressing the roll material into the cleaning tank, a cleaning mechanism arranged in the cleaning tank for cleaning oil stains on both sides of the roll material immersed in the cleaning liquid, the cleaning mechanism comprising two side plates arranged on the inner walls of both sides of the cleaning tank, a plurality of cleaning frames installed between the two side plates, and a driving member installed on the side plates for driving the cleaning frames to reciprocate along the width direction of the roll material when the pressing roller rotates, the cleaning frames being provided with a plurality of wiping plates fixed on the inner walls of both long sides of the cleaning frames along the width direction of the cleaning frames, the roll material passing through the inside of the cleaning frames and abutting against the wiping plates, a flushing mechanism installed on the top of the cleaning tank for flushing the surface of the roll material after being cleaned inside the cleaning tank, a drying mechanism arranged on one side of the cleaning tank for drying the moisture on the surface of the roll material after being flushed, and a displacement mechanism installed on the cleaning tank and in driving connection with the pressing roller, the displacement mechanism being driven to operate by the pressing roller when rotating to input the upper cleaning liquid in the cleaning tank to the bottom of the cleaning tank. Both ends of the pressing roller are fixed with shafts coaxially arranged thereon, the shafts are rotatably connected with the inner walls of the cleaning tank, and the inner walls of the cleaning tank are provided with driving motors for driving the shafts to rotate. The opposite sides of the two side plates are provided with installation grooves for installing the driving members, the driving members comprising a crankshaft rotatably connected in the installation grooves and a transmission shaft rotatably connected with the bottom of the side plate, the crankshaft being a multi-arm crankshaft, a connecting cylinder being movably sleeved on the shaft neck of each connecting rod of the crankshaft, the outer periphery of the connecting cylinder being fixed with a connecting rod hingedly connected with the end of the cleaning frame, one end of the transmission shaft being fixedly connected with one end of the main shaft neck of the crankshaft, the other end of the transmission shaft being fixed with a driven bevel gear, and the outer periphery of the shaft being sleeved with a driving bevel gear meshing with the driven bevel gear. Limiting members are installed between the top surface of the cleaning frame and the two side plates, the limiting members comprising limiting rods fixed on the side plates and limiting sleeves movably sleeved on the outer periphery of the limiting rods, and the limiting sleeves being fixedly connected with the top surface of the cleaning frame. The flushing mechanism comprises two fixed plates fixed on both sides of the top of the cleaning tank, two hollow installation plates installed between the two fixed plates, and a water pump installed on one of the fixed plates for conveying the cleaning liquid in the cleaning tank to the two installation plates, the two installation plates being located on the front and back surfaces of the roll material respectively, and each of the two installation plates being provided on the side facing the roll material with a plurality of nozzles in communication with the inside of the installation plate. Two water scraping plates are fixed between the two fixed plates, the two water scraping plates being located on the front and back surfaces of the roll material respectively, the water scraping plates being arranged along the width direction of the roll material, and one long side of each of the water scraping plates abutting against the surface of the roll material.

2. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 1, characterized in that, The drying mechanism comprises a drying bin arranged on one side of the cleaning tank and a guide roller rotatably connected between the two fixed plates for horizontally guiding the roll material into the drying bin.

3. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 2, characterized in that, The displacement mechanism is provided with two groups, and the two groups of displacement mechanisms are installed on the two long side tank walls of the cleaning tank respectively, the displacement mechanism comprising a water suction pipe installed on the upper part of the inner wall of the cleaning tank, a water discharge pipe installed on the lower part of the inner wall of the cleaning tank, and a water pumping assembly installed on the outer wall of the cleaning tank for sucking the cleaning liquid in the cleaning tank from the water suction pipe and discharging the cleaning liquid from the water discharge pipe.

4. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 1, characterized in that, ​ 5. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 1, characterized in that, ​ 6. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 5, characterized in that, ​ 7. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 5, characterized in that, ​ 8. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 2, characterized in that, ​ 9. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 8, characterized in that, One end of the rotating shaft extends to outside of the cleaning pool, the water pumping assembly comprises an air cylinder and a filter box installed on the outer wall of the cleaning pool, and a rotating wheel coaxially fixed on one end of the rotating shaft outside of the cleaning pool, the air cylinder is internally provided with a piston plate, one end of the piston plate is fixed with a linkage rack, the other end of the linkage rack extends to outside of the air cylinder and is fixed with a fixed frame, the rotating wheel is fixed with a push column movably inserted into the inside of the fixed frame at a position deviated from the center of the one side of the rotating wheel, the filter box is internally fixed with a placing frame, the placing frame is provided with a filter screen on the top surface, one side of the filter box is provided with an operation port for replacing the filter screen, the operation port is externally detachably installed with a sealing plate for sealing the operation port by screws, the air cylinder is installed with a water inlet pipe and a water outlet pipe connected with a drain pipe, the other end of the water inlet pipe is connected with the bottom of the filter box, the top of the filter box is installed with a hose connected with a water suction pipe, and the water inlet pipe and the drain pipe are both installed with a check valve.

10. The rare earth antibacterial color-coated panel spraying coiled material pretreatment device according to claim 9, characterized in that, The water suction pipe is movably installed on the inner wall of the cleaning pool, a linkage mechanism for driving the water suction pipe to move up and down is installed on the outer wall of the cleaning pool, the linkage mechanism comprises a screw rod rotatably connected on the outer wall of the cleaning pool, a lifting plate threadedly sleeved on the outer periphery of the screw rod, and a plurality of connecting rods fixed on the top surface of the lifting plate, the other end of the connecting rod extends to the inside of the cleaning pool and is fixed with the water suction pipe, and the bottom of the screw rod is fixed with a linkage gear engaged with the linkage rack.

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