An apparatus and method for cleaning the surface of an aluminum coil

Abstract

The present application relates to the technical field of aluminum material cleaning, and particularly relates to an aluminum roll surface cleaning device and method. The device comprises an unwinding machine, a cleaning mechanism, two vertical plates, a collection box, two partitions, a first guide roller, a second guide roller, a third guide roller, two sliding blocks, two scrapers, a driving mechanism, two wiping mechanisms, a blow-drying mechanism and a winding machine. The unwinding machine unwinds the aluminum roll into an aluminum strip, and the aluminum strip enters the cleaning mechanism for surface cleaning. The aluminum strip vertically downwardly passes around the first guide roller. The driving mechanism drives the two sliding blocks to slide, and drives the two scrapers to approach each other and be attached to the upper and lower surfaces of the aluminum strip. The aluminum strip passes between the two scrapers, scrapes off the residual liquid and falls into the collection box. Then the aluminum strip passes out from the strip-shaped hole between the two partitions. The aluminum strip after passing out is wiped by the two wiping mechanisms, and then passes around the second guide roller and the third guide roller in turn. The aluminum strip after turning is blown dry by the blow-drying mechanism, and finally is wound by the winding machine. The aluminum roll is completely dried after cleaning.

Description

Technical Field

[0001] This invention relates to the field of aluminum cleaning technology, and in particular to an apparatus and method for cleaning the surface of aluminum coils. Background Technology

[0002] During the production and transportation of aluminum coils, various factors such as lubricating grease during processing, handling, or storage, unclean gloves of operators, and oil leaks from equipment can cause oil stains to adhere to the coils, affecting subsequent transportation and processing. Therefore, cleaning is necessary.

[0003] Currently, aluminum coil cleaning typically employs a continuous multi-stage process: after the aluminum coil is unwound into an aluminum strip by an unwinding machine, it enters the cleaning mechanism (such as an alkaline washing tank, an acid washing tank, and a rinsing tank) in sequence for chemical immersion or spray cleaning to remove surface oil and oxide layers; the cleaned aluminum strip is then conveyed to the rinsing section by guide rollers, where residual chemical solutions are removed by water spraying or immersion.

[0004] However, after rinsing, the aluminum coil, which is unrolled into an aluminum strip, still has a lot of residual liquid adhering to its surface. Directly winding it up can easily cause impurities in the liquid to re-adhere to the surface of the aluminum strip, resulting in water stains, oxidation spots, and even interlayer corrosion, which seriously affects product quality. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminum coil surface cleaning device and method, which aims to solve the technical problem in the existing aluminum coil cleaning process that there is a lot of residual liquid on the surface of the aluminum strip after rinsing. When the strip is directly wound up, impurities in the liquid can easily adhere to the surface of the aluminum strip again, causing water stains, oxide spots, or even interlayer corrosion, which seriously affects the product quality.

[0006] To achieve the above objectives, the present invention provides an aluminum coil surface cleaning device, comprising an unwinding machine, a cleaning mechanism, two vertical plates, a collection box, two partitions, a first guide roller, a second guide roller, a third guide roller, two sliders, two scrapers, a driving mechanism, two wiping mechanisms, a drying mechanism, and a winding machine; The cleaning mechanism is located on one side of the unwinding machine; the two upright plates are located on the side of the cleaning mechanism away from the unwinding machine; the collection box is fixedly installed on the top of the two upright plates; the bottom of the collection box has a strip-shaped hole; the two partitions are respectively fixedly installed on the bottom of the inner wall of the collection box; the first guide roller is rotatably installed on the top of the collection box; the second guide roller is rotatably installed between the two upright plates and located below the first guide roller; the third guide roller is rotatably installed between the two upright plates and located on one side of the second guide roller; the two sliders are respectively slidably installed inside the collection box; the two scrapers are respectively fixedly installed on the top of the two sliders; the driving mechanism is installed on the collection box for driving the two sliders to slide; the two wiping mechanisms are installed on the two upright plates and located above the second guide roller; the drying mechanism is located on the side of the collection box away from the cleaning mechanism; the winding machine is located on the side of the drying mechanism away from the collection box.

[0007] The scraper has a rounded end to avoid scratching the aluminum strip.

[0008] The drive mechanism includes two support plates, two drive blocks, two connecting rods, and a bidirectional lead screw. Two mounting holes are provided on one side of the collection box; two support plates are fixedly mounted on one side of the collection box; two drive blocks are slidably mounted on one side of the collection box; one end of each of the two connecting rods is fixedly connected to the two sliders, and the other end of each of the two connecting rods is fixedly connected to the two drive blocks, and the two connecting rods pass through the two mounting holes; the bidirectional lead screw is rotatably mounted on the two support plates and is threadedly connected to the two drive blocks respectively.

[0009] The wiping mechanism includes a rotating shaft, a motor, a square tube, four elastic support members, four mounting frames, four sponge wipes, two mounting plates, two electric push rods, and two push plates. The rotating shaft is rotatably mounted between the two upright plates; the motor is fixedly mounted on the front upright plate, and the output end of the motor is fixedly connected to the rotating shaft; the square tube is fixedly mounted on the rotating shaft; four elastic support members are equidistantly mounted on the square tube along the circumference; each elastic support member has a mounting frame at its end; a sponge is detachably mounted in each mounting frame; two mounting plates are respectively fixedly mounted on the two upright plates; two electric push rods are respectively fixedly mounted on the two mounting plates; and a push plate is fixedly mounted at the output end of each electric push rod.

[0010] The elastic support includes a mounting cylinder, a slide bar, a stop block, and a spring. The mounting cylinder is fixedly disposed on one side of the square tube; the sliding rod is slidably disposed inside the mounting cylinder, and one end of the sliding rod is fixedly connected to the mounting frame; the stop block is slidably disposed inside the mounting cylinder and is fixedly connected to one end of the sliding rod; the spring sleeve is disposed on the sliding rod and is located inside the mounting cylinder.

[0011] The elastic support also includes two guide cylinders and two first guide rods; The two guide cylinders are respectively fixedly disposed on one side of the square tube; the two first guide rods are respectively slidably disposed inside the two guide cylinders, and one end of each of the two first guide rods is fixedly connected to the mounting frame.

[0012] The drying mechanism includes two supports and two air knives; The two supports are located between the collection box and the winding machine; the two air knives are respectively fixedly installed between the two supports.

[0013] The aluminum coil surface cleaning device also includes two lateral sealing mechanisms; The two lateral sealing mechanisms are respectively disposed on the front and rear sides of the collection box. The lateral sealing mechanisms are used to prevent the liquid scraped off the aluminum strip by the two scrapers from splashing between the two partitions from both sides.

[0014] The lateral sealing mechanism includes two second guide rods, a sealing plate, and an adjusting screw. Two second guide rods are slidably mounted on the collection box and pass through the collection box respectively; the sealing plate is fixedly mounted on one end of the two second guide rods and located inside the collection box, and contacts the ends of the two scrapers respectively; the adjusting screw is rotatably connected to the sealing plate and threadedly connected to the collection box, and passes through the collection box.

[0015] Secondly, the present invention also provides a method for cleaning the surface of an aluminum coil, comprising the following steps: S1: The unwinding machine unwinds the aluminum coil into an aluminum strip, which then enters the cleaning mechanism for surface cleaning. S2: The aluminum strip goes vertically downward around the first guide roller. The drive mechanism drives the two sliders to slide, causing the two scrapers to come closer together and stick to the upper and lower surfaces of the aluminum strip. The aluminum strip passes between the two scrapers, scraping off the residual liquid and falling into the collection box. Then the aluminum strip passes through the strip hole between the two partitions. S3: After passing through, the aluminum strip is wiped on the upper and lower surfaces by two wiping mechanisms, and then passes around the second guide roller and the third guide roller in sequence; S4: The aluminum strip after turning is dried by the drying mechanism and finally wound up by the winding machine.

[0016] This invention discloses an aluminum coil surface cleaning device and method. The unwinding machine sequentially unwinds the aluminum coil into aluminum strip. The cleaning mechanism uses alkaline washing tanks, acid washing tanks, and rinsing tanks to clean the aluminum strip. A first guide roller changes the direction of the aluminum strip, making it vertically downward. A driving mechanism drives two sliders to slide in opposite directions, thereby causing two scrapers to move closer or further apart. The two scrapers respectively adhere to the upper and lower surfaces of the aluminum strip, scraping off residual liquid, which falls into a collection box. Two partitions guide the aluminum strip through them. A strip-shaped hole allows the aluminum strip to exit the collection box. Two wiping mechanisms wipe the upper and lower surfaces of the aluminum strip to further dry residual liquid. A drying mechanism blows air onto the upper and lower surfaces of the aluminum strip to achieve final drying. The rewinding machine rewinds the cleaned and dried aluminum strip into an aluminum coil.

[0017] Specifically, the aluminum strip is released from the unwinding machine, cleaned by the cleaning mechanism, and then travels vertically downwards after passing over the first guide roller. The strip passes between two scrapers, and the driving mechanism drives two sliders to slide, causing the scrapers to move closer together, so that the ends of the scrapers respectively contact the upper and lower surfaces of the aluminum strip, scraping off residual liquid. The scraped liquid falls into the collection box. The strip continues downwards, passing between two partitions and exiting the collection box through the strip-shaped hole. After exiting, the strip passes between two wiping mechanisms, where its upper and lower surfaces are wiped dry. The dried strip then passes around the second and third guide rollers, changing its direction of travel from vertical to inclined upwards. The inclined strip passes through the drying mechanism, where its upper and lower surfaces are dried. Finally, the dried strip is wound into an aluminum coil by the winding machine. The forward movement of the aluminum strip mainly relies on the traction of the winding machine. This solves the technical problem in the existing aluminum coil cleaning process where there is a lot of residual liquid on the surface of the aluminum strip after rinsing. When the strip is directly wound up, impurities in the liquid can easily re-adhere to the surface of the aluminum strip, causing water stains, oxide spots, or even interlayer corrosion, which seriously affects product quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0020] Figure 2 This is a left view of the first embodiment of the present invention.

[0021] Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0022] Figure 4 This is a schematic diagram of the structure of the first embodiment of the present invention, excluding the unwinding machine, the cleaning mechanism, the drying mechanism, and the winding machine.

[0023] Figure 5 yes Figure 4 A magnified view of detail A.

[0024] Figure 6 This is a schematic diagram of the structure of the rotating shaft, square tube, elastic support, mounting frame, and sponge of the present invention.

[0025] Figure 7 This is a side view of the rotating shaft, square tube, elastic support, mounting frame, and sponge of the present invention.

[0026] Figure 8 yes Figure 7 A cross-sectional view along the BB direction.

[0027] Figure 9 This is a structural schematic diagram from another angle of the first embodiment of the present invention, excluding the unwinding machine, the cleaning mechanism, the drying mechanism, and the winding machine.

[0028] Figure 10 yes Figure 9 A magnified view of detail B.

[0029] Figure 11 This is a flowchart illustrating the second embodiment of the present invention.

[0030] 1-Unwinder, 2-Washing mechanism, 3-Upright plate, 4-Collection box, 5-Baffle, 6-First guide roller, 7-Second guide roller, 8-Third guide roller, 9-Slider, 10-Scraper, 11-Drive mechanism, 12-Wiping mechanism, 13-Drying mechanism, 14-Rewinder, 15-Side sealing mechanism, 401-Strip hole, 402-Mounting hole, 1101-Support plate, 1102-Drive block, 1103-Connecting rod, 1104-Double-actuated screw, 1201-Shaft, 1202-Motor, 1 203-Square tube, 1204-Elastic support, 1205-Mounting frame, 1206-Sponge wiper, 1207-Mounting plate, 1208-Electric push rod, 1209-Push plate, 120401-Mounting cylinder, 120402-Slide rod, 120403-Stop block, 120404-Spring, 120405-Guide cylinder, 120406-First guide rod, 1301-Bracket, 1302-Air knife, 1501-Second guide rod, 1502-Sealing plate, 1503-Adjusting screw. Detailed Implementation

[0031] The first embodiment of this application is as follows: Please see Figures 1-10 ,in, Figure 1This is a schematic diagram of the structure of the first embodiment of the present invention. Figure 2 This is a left view of the first embodiment of the present invention. Figure 3 yes Figure 2 A cross-sectional view along the AA direction. Figure 4 This is a schematic diagram of the structure of the first embodiment of the present invention, excluding the unwinding machine, the cleaning mechanism, the drying mechanism, and the winding machine. Figure 5 yes Figure 4 A magnified view of detail A. Figure 6 This is a schematic diagram of the structure of the rotating shaft, square tube, elastic support, mounting frame, and sponge of the present invention. Figure 7 This is a side view of the rotating shaft, square tube, elastic support, mounting frame, and sponge of the present invention. Figure 8 yes Figure 7 A cross-sectional view along the BB direction. Figure 9 This is a structural schematic diagram from another angle of the first embodiment of the present invention, excluding the unwinding machine, the cleaning mechanism, the drying mechanism, and the winding machine. Figure 10 yes Figure 9 A magnified view of detail B.

[0032] This invention provides an aluminum coil surface cleaning device, comprising an unwinding machine 1, a cleaning mechanism 2, two upright plates 3, a collection box 4, two partitions 5, a first guide roller 6, a second guide roller 7, a third guide roller 8, two sliders 9, two scrapers 10, a driving mechanism 11, two wiping mechanisms 12, a drying mechanism 13, and a winding machine 14; the collection box 4 has a strip-shaped hole 401 at its bottom; the driving mechanism 11 includes two support plates 1101, two driving blocks 1102, two connecting rods 1103, and a bidirectional lead screw 1104; the collection box 4 has two mounting holes 402 on one side; the wiping mechanism 12 includes a rotating shaft 1201, a motor 1202, a square tube 1203, four elastic support members 1204, four mounting frames 1205, four sponge wipes 1206, two mounting plates 1207, two electric push rods 1208, and... Two push plates 1209; the elastic support 1204 includes a mounting cylinder 120401, a slide rod 120402, a stop block 120403, and a spring 120404; the elastic support 1204 also includes two guide cylinders 120405 and two first guide rods 120406; the drying mechanism 13 includes two brackets 1301 and two air knives 1302; the aluminum coil surface cleaning device also includes two lateral sealing mechanisms 15; the lateral sealing mechanism 15 includes two second guide rods 1501, a sealing plate 1502, and an adjusting screw 1503; the aforementioned solution solves the technical problem in the existing aluminum coil cleaning process where there is a lot of residual liquid on the surface of the aluminum strip after rinsing, and when directly winding, impurities in the liquid are easily re-adhered to the surface of the aluminum strip, producing water stains, oxide spots, or even interlayer corrosion, which seriously affects product quality.

[0033] Furthermore, the cleaning mechanism 2 is located on one side of the unwinding machine 1; the two upright plates 3 are located on the side of the cleaning mechanism 2 away from the unwinding machine 1; the collection box 4 is fixedly installed on the top of the two upright plates 3; the bottom of the collection box 4 is provided with a strip-shaped hole 401; the two partition plates 5 are respectively fixedly installed on the bottom of the inner wall of the collection box 4; the first guide roller 6 is rotatably installed on the top of the collection box 4; the second guide roller 7 is rotatably installed between the two upright plates 3 and located below the first guide roller 6; the third guide roller 8 is rotatably installed between the two upright plates 3 and located on one side of the second guide roller 7; the two sliders 9 are respectively slidably installed inside the collection box 4; the two scrapers 10 are respectively fixedly installed on the top of the two sliders 9; the driving mechanism 11 is installed on the collection box 4 for driving the two sliders 9 to slide; the two wiping mechanisms 12 are installed on the two upright plates 3 and located above the second guide roller 7; the drying mechanism 13 is located on the side of the collection box 4 away from the cleaning mechanism 2; the winding machine 14 is located on the side of the drying mechanism 13 away from the collection box 4.

[0034] In this embodiment, the unwinding machine 1 is used to unwind the aluminum coil into aluminum strip sequentially; the cleaning mechanism 2 uses alkaline washing tank, acid washing tank, rinsing tank, etc. to clean the aluminum strip; the first guide roller 6 is used to change the direction of the aluminum strip so that the aluminum strip is vertically downward; the driving mechanism 11 is used to drive the two sliders 9 to slide in opposite directions, thereby causing the two scrapers 10 to move closer or further apart; the two scrapers 10 are used to contact the upper and lower surfaces of the aluminum strip respectively to scrape off the residual liquid, and the scraped liquid falls into the collection box 4; the two partitions 5 are used to guide the aluminum strip through the partitions; the strip hole 401 is used to allow the aluminum strip to pass out of the collection box 4; the two wiping mechanisms 12 are used to wipe the upper and lower surfaces of the aluminum strip to further dry the residual liquid; the drying mechanism 13 is used to blow air on the upper and lower surfaces of the aluminum strip to achieve final drying; the winding machine 14 is used to rewind the cleaned and dried aluminum strip into an aluminum coil.

[0035] Specifically, the aluminum strip is released from the unwinder 1, cleaned by the cleaning mechanism 2, and then travels vertically downwards after passing over the first guide roller 6. The aluminum strip passes between the two scrapers 10, and the driving mechanism 11 drives the two sliders 9 to slide, causing the two scrapers 10 to move closer together, so that the ends of the two scrapers 10 respectively adhere to the upper and lower surfaces of the aluminum strip, scraping off residual liquid. The scraped liquid falls into the collection tank 4. The aluminum strip, after being scraped, continues downwards, passing between the two partitions 5. The aluminum strip passes through the collection box 4 via the strip-shaped hole 401; after passing through, the aluminum strip passes between the two wiping mechanisms 12, where its upper and lower surfaces are wiped dry; the dried aluminum strip then passes sequentially around the second guide roller 7 and the third guide roller 8, its direction of travel changing from vertical to inclined upward; the inclined upward aluminum strip passes through the drying mechanism 13, where its upper and lower surfaces are dried; finally, the dried aluminum strip is wound into an aluminum coil by the winding machine 14; the forward movement of the aluminum strip mainly relies on the traction of the winding machine 14. This solves the technical problem in the existing aluminum coil cleaning process where there is a lot of residual liquid on the surface of the aluminum strip after rinsing, and when directly wound, impurities in the liquid easily adhere to the surface of the aluminum strip again, producing water stains, oxide spots, or even interlayer corrosion, which seriously affects product quality.

[0036] Furthermore, the end of the scraper 10 is rounded to avoid scratching the aluminum strip.

[0037] In this embodiment, the end of the scraper 10 is provided as an arc surface, which can avoid scratching the aluminum strip when it comes into contact with it.

[0038] Furthermore, the collection box 4 has two mounting holes 402 on one side; the two support plates 1101 are fixedly mounted on one side of the collection box 4; the two drive blocks 1102 are slidably mounted on one side of the collection box 4; one end of the two connecting rods 1103 is fixedly connected to the two sliders 9, and the other end of the two connecting rods 1103 is fixedly connected to the two drive blocks 1102, and the two connecting rods 1103 pass through the two mounting holes 402; the bidirectional lead screw 1104 is rotatably mounted on the two support plates 1101 and threadedly connected to the two drive blocks 1102 respectively.

[0039] In this embodiment, rotating the bidirectional lead screw 1104 drives the two drive blocks 1102 to slide in opposite directions. The two drive blocks 1102 drive the two sliders 9 to slide in opposite directions through the two connecting rods 1103, ultimately causing the two scrapers 10 to move closer or further apart to accommodate aluminum strips of different thicknesses.

[0040] Furthermore, the rotating shaft 1201 is rotatably disposed between the two upright plates 3; the motor 1202 is fixedly disposed on the front upright plate 3, and the output end of the motor 1202 is fixedly connected to the rotating shaft 1201; the square tube 1203 is fixedly disposed on the rotating shaft 1201; four elastic support members 1204 are equidistantly disposed on the square tube 1203 along the circumference; each elastic support member 1204 has a mounting frame 1205 at its end; a sponge 1206 is detachably disposed in each mounting frame 1205; two mounting plates 1207 are respectively fixedly disposed on the two upright plates 3; two electric push rods 1208 are respectively fixedly disposed on the two mounting plates 1207; and a push plate 1209 is fixedly disposed at the output end of each electric push rod 1208.

[0041] In this embodiment, the motor 1202 drives the rotating shaft 1201 to rotate, and the rotating shaft 1201 drives the square tube 1203 to rotate, thereby causing the four elastic support members 1204 and the four sponge wipers 1206 at the ends to rotate around the rotating shaft 1201.

[0042] In use, one of the elastic supports 1204 supports a mounting frame 1205 and the sponge 1206 within it, positioned on the side of the vertically moving aluminum strip. Two electric push rods 1208 extend and push the mounting frame 1205 via two push plates 1209, causing the mounting frame 1205 to overcome the elastic force of the elastic support 1204 and pull the sponge 1206 tightly against the aluminum strip. When the sponge 1206 absorbs a significant amount of moisture and its wiping effect decreases, the two electric push rods 1208 retract the two push plates 1209. Under the elastic force of the elastic support 1204, the mounting frame 1205 pulls the sponge 1206 away from the aluminum strip. At this time, the motor 1202 drives the rotating shaft 1201 to rotate the next dried sponge 1206 to the side of the aluminum strip. The two electric push rods 1208 extend again, pushing the mounting frame 1205 to bring the sponge 1206 tightly against the surface of the aluminum strip. The saturated sponge 1206 that has been transferred can be replaced. The two sponges 1206 of the left and right wiping mechanisms 12 simultaneously adhere to the upper and lower surfaces of the vertical aluminum strip to achieve a wiping effect. A humidity sensor can be installed to prompt staff or to actively control the replacement of the sponge 1206.

[0043] Furthermore, the mounting cylinder 120401 is fixedly disposed on one side of the square tube 1203; the slide rod 120402 is slidably disposed within the mounting cylinder 120401, and one end of the slide rod 120402 is fixedly connected to the mounting frame 1205; the stop block 120403 is slidably disposed within the mounting cylinder 120401 and is fixedly connected to one end of the slide rod 120402; the spring 120404 is sleeved on the slide rod 120402 and located within the mounting cylinder 120401.

[0044] In this embodiment, the spring 120404 is in a pre-compressed state, applying elastic force to the stop block 120403, causing the slide rod 120402 to drive the mounting frame 1205 to always tend towards the mounting cylinder 120401. The sponge 1206 maintains a distance from the aluminum strip, so that it is not blocked by the aluminum strip when the rotating shaft 1201 drives the sponge 1206 to rotate. When the push plate 1209 pushes the mounting frame 1205, the slide rod 120402 drives the stop block 120403 to compress the spring 120404, overcoming the elastic force of the spring 120404.

[0045] Furthermore, the two guide cylinders 120405 are respectively fixedly disposed on one side of the square tube 1203; the two first guide rods 120406 are respectively slidably disposed inside the two guide cylinders 120405, and one end of each of the two first guide rods 120406 is fixedly connected to the mounting frame 1205.

[0046] In this embodiment, since the mounting frame 1205 is relatively long, it is not stable enough to be supported by the elastic support member 1204 alone. Therefore, the guide cylinder 120405 and the first guide rod 120406 are set to form a telescopic rod structure to further support the mounting frame 1205 without affecting the displacement of the mounting frame 1205.

[0047] Furthermore, the two supports 1301 are located between the collection box 4 and the winding machine 14; the two air knives 1302 are respectively fixedly arranged between the two supports 1301.

[0048] In this embodiment, the two brackets 1301 support the two air knives 1302 from the front and rear sides. The two air knives 1302 are arranged vertically opposite each other and are respectively connected to an external air source for blowing air onto the upper and lower surfaces of the inclined aluminum strip to further dry it.

[0049] Furthermore, the two lateral sealing mechanisms 15 are respectively disposed on the front and rear sides of the collection box 4. The lateral sealing mechanisms 15 are used to prevent the liquid scraped off the aluminum strip by the two scrapers 10 from splashing between the two partitions 5 from both sides.

[0050] In this embodiment, when the two scrapers 10 contact the upper and lower surfaces of the aluminum strip to scrape off the residual liquid, splashing may occur. To prevent liquid from falling through the gap between the two scrapers 10 on the side of the aluminum strip and flowing out through the strip-shaped hole 401 between the two partitions 5, two lateral sealing mechanisms 15 are provided on the front and rear sides of the collection box 4 for sealing. Here, the front side refers to the side closer to the motor 1202, and the corresponding rear side is the side farther away from the motor 1202.

[0051] Furthermore, the two second guide rods 1501 are slidably disposed on the collection box 4 and pass through the collection box 4 respectively; the sealing plate 1502 is fixedly disposed at one end of the two second guide rods 1501 and located inside the collection box 4, and respectively in contact with the ends of the two scrapers 10; the adjusting screw 1503 is rotatably connected to the sealing plate 1502 and threadedly connected to the collection box 4, and passes through the collection box 4.

[0052] In this embodiment, after the two scrapers 10 are in contact with the upper and lower surfaces of the aluminum strip, the adjusting screw 1503 is turned to move the sealing plate 1502 laterally until it makes slight contact with the side of the aluminum strip, and the sealing plate 1502 simultaneously contacts the ends of the two scrapers 10. This structure can accommodate aluminum strips of different widths and blocks splashed liquid from the side, preventing liquid from leaking out from the gap between the two scrapers 10 on the side of the aluminum strip.

[0053] This embodiment describes an aluminum coil surface cleaning device. The unwinding machine 1 is used to unwind the aluminum coil into aluminum strip sequentially. The cleaning mechanism 2 uses alkaline washing tank, acid washing tank, rinsing tank, etc., to clean the aluminum strip. The first guide roller 6 is used to change the direction of the aluminum strip so that the aluminum strip is vertically downward. The driving mechanism 11 is used to drive the two sliders 9 to slide in opposite directions, thereby causing the two scrapers 10 to move closer or further apart. The two scrapers 10 are used to contact the upper and lower surfaces of the aluminum strip respectively to scrape off residual liquid, and the scraped liquid falls into the collection box 4. The two partitions 5 are used to guide the aluminum strip through the partitions. The strip hole 401 is used to allow the aluminum strip to pass out of the collection box 4. The two wiping mechanisms 12 are used to wipe the upper and lower surfaces of the aluminum strip to further dry the residual liquid. The drying mechanism 13 is used to blow air on the upper and lower surfaces of the aluminum strip to achieve final drying. The winding machine 14 is used to rewind the cleaned and dried aluminum strip into an aluminum coil.

[0054] Specifically, the aluminum strip is released from the unwinder 1, cleaned by the cleaning mechanism 2, and then travels vertically downwards after passing over the first guide roller 6. The aluminum strip passes between the two scrapers 10, and the driving mechanism 11 drives the two sliders 9 to slide, causing the two scrapers 10 to move closer together, so that the ends of the two scrapers 10 respectively adhere to the upper and lower surfaces of the aluminum strip, scraping off residual liquid. The scraped liquid falls into the collection tank 4. The aluminum strip, after being scraped, continues downwards, passing between the two partitions 5. The aluminum strip passes through the collection box 4 via the strip-shaped hole 401; after passing through, the aluminum strip passes between the two wiping mechanisms 12, where its upper and lower surfaces are wiped dry; the dried aluminum strip then passes sequentially around the second guide roller 7 and the third guide roller 8, its direction of travel changing from vertical to inclined upward; the inclined upward aluminum strip passes through the drying mechanism 13, where its upper and lower surfaces are dried; finally, the dried aluminum strip is wound into an aluminum coil by the winding machine 14; the forward movement of the aluminum strip mainly relies on the traction of the winding machine 14. This solves the technical problem in the existing aluminum coil cleaning process where there is a lot of residual liquid on the surface of the aluminum strip after rinsing, and when directly wound, impurities in the liquid easily adhere to the surface of the aluminum strip again, producing water stains, oxide spots, or even interlayer corrosion, which seriously affects product quality.

[0055] The second embodiment of this application is as follows: Based on the first embodiment, please refer to Figure 11 ,in, Figure 11 This is a flowchart illustrating the second embodiment of the present invention.

[0056] The present invention provides a method for cleaning the surface of aluminum coils, comprising the following steps: S1: Unwinder 1 unwinds the aluminum coil into aluminum strip, and the aluminum strip enters cleaning mechanism 2 for surface cleaning; S2: The aluminum strip goes vertically downward around the first guide roller 6. The drive mechanism 11 drives the two sliders 9 to slide, causing the two scrapers 10 to come closer to each other and stick to the upper and lower surfaces of the aluminum strip. The aluminum strip passes between the two scrapers 10, scraping off the residual liquid and falling into the collection box 4. Then the aluminum strip passes through the strip hole 401 between the two partitions 5. S3: After passing through, the aluminum strip is wiped on the upper and lower surfaces by two wiping mechanisms 12, and then passes around the second guide roller 7 and the third guide roller 8 in sequence; S4: The aluminum strip after turning is dried by the drying mechanism 13 and finally wound up by the winding machine 14.

[0057] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A surface cleaning device for aluminum coils, characterized in that, It includes an unwinding machine, a cleaning mechanism, two vertical plates, a collection box, two partitions, a first guide roller, a second guide roller, a third guide roller, two sliders, two scrapers, a drive mechanism, two wiping mechanisms, a drying mechanism, and a winding machine; The cleaning mechanism is located on one side of the unwinding machine; the two upright plates are located on the side of the cleaning mechanism away from the unwinding machine; the collection box is fixedly installed on the top of the two upright plates; the bottom of the collection box has a strip-shaped hole; the two partitions are respectively fixedly installed on the bottom of the inner wall of the collection box; the first guide roller is rotatably installed on the top of the collection box; the second guide roller is rotatably installed between the two upright plates and located below the first guide roller; the third guide roller is rotatably installed between the two upright plates and located on one side of the second guide roller; the two sliders are respectively slidably installed inside the collection box; the two scrapers are respectively fixedly installed on the top of the two sliders; the driving mechanism is installed on the collection box for driving the two sliders to slide; the two wiping mechanisms are installed on the two upright plates and located above the second guide roller; the drying mechanism is located on the side of the collection box away from the cleaning mechanism; the winding machine is located on the side of the drying mechanism away from the collection box.

2. The aluminum coil surface cleaning device as described in claim 1, characterized in that, The scraper has a rounded end to avoid scratching the aluminum strip.

3. The aluminum coil surface cleaning device as described in claim 2, characterized in that, The drive mechanism includes two support plates, two drive blocks, two connecting rods, and a two-way lead screw; Two mounting holes are provided on one side of the collection box; two support plates are fixedly mounted on one side of the collection box; two drive blocks are slidably mounted on one side of the collection box; one end of each of the two connecting rods is fixedly connected to the two sliders, and the other end of each of the two connecting rods is fixedly connected to the two drive blocks, and the two connecting rods pass through the two mounting holes; the bidirectional lead screw is rotatably mounted on the two support plates and is threadedly connected to the two drive blocks respectively.

4. The aluminum coil surface cleaning device as described in claim 3, characterized in that, The wiping mechanism includes a rotating shaft, a motor, a square tube, four elastic support members, four mounting frames, four sponge wipes, two mounting plates, two electric push rods, and two push plates; The rotating shaft is rotatably mounted between the two upright plates; the motor is fixedly mounted on the front upright plate, and the output end of the motor is fixedly connected to the rotating shaft; the square tube is fixedly mounted on the rotating shaft; four elastic support members are equidistantly mounted on the square tube along the circumference; each elastic support member has a mounting frame at its end; a sponge is detachably mounted in each mounting frame; two mounting plates are respectively fixedly mounted on the two upright plates; two electric push rods are respectively fixedly mounted on the two mounting plates; and a push plate is fixedly mounted at the output end of each electric push rod.

5. The aluminum coil surface cleaning device as described in claim 4, characterized in that, The elastic support includes a mounting cylinder, a slide bar, a stop block, and a spring; The mounting cylinder is fixedly disposed on one side of the square tube; the sliding rod is slidably disposed inside the mounting cylinder, and one end of the sliding rod is fixedly connected to the mounting frame; the stop block is slidably disposed inside the mounting cylinder and is fixedly connected to one end of the sliding rod; the spring sleeve is disposed on the sliding rod and is located inside the mounting cylinder.

6. The aluminum coil surface cleaning device as described in claim 5, characterized in that, The elastic support also includes two guide cylinders and two first guide rods; The two guide cylinders are respectively fixedly disposed on one side of the square tube; the two first guide rods are respectively slidably disposed inside the two guide cylinders, and one end of each of the two first guide rods is fixedly connected to the mounting frame.

7. The aluminum coil surface cleaning device as described in claim 6, characterized in that, The drying mechanism includes two supports and two air knives; The two supports are located between the collection box and the winding machine; the two air knives are respectively fixedly installed between the two supports.

8. The aluminum coil surface cleaning device as described in claim 7, characterized in that, The aluminum coil surface cleaning device also includes two lateral sealing mechanisms; The two lateral sealing mechanisms are respectively disposed on the front and rear sides of the collection box. The lateral sealing mechanisms are used to prevent the liquid scraped off the aluminum strip by the two scrapers from splashing between the two partitions from both sides.

9. The aluminum coil surface cleaning device as described in claim 8, characterized in that, The lateral sealing mechanism includes two second guide rods, a sealing plate, and an adjusting screw; Two second guide rods are slidably mounted on the collection box and pass through the collection box respectively; the sealing plate is fixedly mounted on one end of the two second guide rods and located inside the collection box, and contacts the ends of the two scrapers respectively; the adjusting screw is rotatably connected to the sealing plate and threadedly connected to the collection box, and passes through the collection box.

10. An aluminum coil surface cleaning method using the aluminum coil surface cleaning apparatus according to any one of claims 1 to 9, characterized by, Includes the following steps: S1: The unwinding machine unwinds the aluminum coil into an aluminum strip, which then enters the cleaning mechanism for surface cleaning. S2: The aluminum strip goes vertically downward around the first guide roller. The drive mechanism drives the two sliders to slide, causing the two scrapers to come closer together and stick to the upper and lower surfaces of the aluminum strip. The aluminum strip passes between the two scrapers, scraping off the residual liquid and falling into the collection box. Then the aluminum strip passes through the strip hole between the two partitions. S3: After passing through, the aluminum strip is wiped on the upper and lower surfaces by two wiping mechanisms, and then passes around the second guide roller and the third guide roller in sequence; S4: The aluminum strip after turning is dried by the drying mechanism and finally wound up by the winding machine.

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