A kind of oil removal device for hot galvanizing plate strip processing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 漯河市永鑫金具有限公司
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
Smart Images
Figure CN224525388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot-dip galvanized sheet and strip processing technology, specifically to an oil removal device for hot-dip galvanized sheet and strip processing. Background Technology
[0002] Hot-dip galvanized steel sheets and strips are widely used in many fields such as construction, automobile manufacturing, home appliance production, and transportation due to their excellent corrosion resistance, formability, and paintability. During the processing of hot-dip galvanized steel sheets and strips, rolling oil, rust-preventive oil, and other oil and dirt residues remain on the surface of the sheets and strips due to rolling and storage processes. If these oil and dirt residues are not thoroughly removed, they will directly affect the adhesion and surface quality of the subsequent galvanized layer, and may even lead to coating defects. Therefore, degreasing is a key pretreatment step in the processing of hot-dip galvanized steel sheets and strips, and its efficiency and effect have an important impact on the quality of the final product. The performance optimization of related degreasing devices has also become a focus of continuous attention in the industry. In existing technologies, hot-dip galvanized steel strip degreasing devices typically include a closed or semi-closed outer shell with material inlets on both sides for the steel strip to enter and exit. The interior is equipped with symmetrically arranged spray heads and brush rollers. The working process is roughly as follows: the steel strip enters the device through the material inlets, and the spray heads spray degreasing agent or water onto the upper and lower surfaces of the strip to initially dissolve surface oil. Simultaneously, the symmetrically arranged brush rollers rotate under the drive mechanism to wipe the surface of the strip, further removing residual oil and impurities. Wastewater generated from the spraying mixes with the oil and is collected and discharged through a collection structure at the bottom of the outer shell, completing the degreasing operation. However, existing degreasing devices still have certain limitations in practical applications. The brush roller, as the core wiping component, is prone to wear after long-term use and needs to be replaced regularly. However, in existing devices, the brush roller is mostly fixed by rigid connection methods such as bolts. When replacing it, multiple fasteners need to be disassembled with special tools, which is cumbersome and time-consuming. This seriously affects the maintenance efficiency of the equipment and the continuous operation of the production line. Therefore, we propose a degreasing device for hot-dip galvanized sheet and strip processing. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an oil removal device for hot-dip galvanized sheet processing. By cooperating with the arc-shaped insert plate and the self-locking block and axially locking the limiting plate, the brush roller can be quickly disassembled and assembled, which can effectively solve the problems in the background technology.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an oil removal device for hot-dip galvanized sheet and strip processing, comprising a housing, wherein the housing is provided with vertically symmetrical spray heads, the housing is provided with vertically symmetrical brush rollers, and the left and right side walls of the housing are provided with material inlets, and also includes a replacement component; Replacement components include arc-shaped inserts, limiting plates, slots, rotating cavities, clearance grooves, and self-locking blocks. The rear sidewall of the housing is rotatably connected to symmetrically distributed mounting shafts. Slots are evenly spaced on the front sides of the two mounting shafts. Each mounting shaft has a rotating cavity inside, which communicates with the adjacent slot on the front side. Self-locking blocks are located inside the slots. Arc-shaped inserts are evenly spaced on the rear sides of the two brush roller shafts, and each arc-shaped insert cooperates with the adjacent self-locking block on the rear side. The front side of each mounting shaft has clearance grooves corresponding to the adjacent arc-shaped inserts on the front side. Limiting plates are fixedly connected to the rear sides of the arc-shaped inserts and are located inside the adjacent rotating cavities on the rear side. Through the cooperation of the arc-shaped inserts and self-locking blocks, and the axial locking of the limiting plates, rapid disassembly and assembly of the brush rollers is achieved, improving maintenance efficiency. This solves the problem in the prior art where disassembly of the brush roller requires the removal of multiple fasteners, resulting in cumbersome and time-consuming operations.
[0005] Furthermore, a control switch assembly is provided on the front side of the housing, and the input end of the control switch assembly is electrically connected to an external power source for stable control.
[0006] Furthermore, the replacement assembly also includes a replacement plate, a spring, and a sliding column. The replacement plate is threaded to the rear end of the slot. The sliding column is fixedly connected to the rear side of the self-locking block. A limiting piece is provided on the front side of the outer arc surface of each sliding column. A clearance hole corresponding to the adjacent sliding column is opened in the middle of the replacement plate. A spring is provided between the front side of the replacement plate and the rear side of the limiting piece. The spring is sleeved on the outer arc surface of the adjacent sliding column. The replacement plate, spring, and sliding column structure of the replacement assembly realizes the automatic reset of the self-locking block through the elastic force of the spring. The threaded replacement plate facilitates the individual replacement of vulnerable parts such as springs, reducing maintenance costs.
[0007] Furthermore, the outer arc surface of the mounting shaft is provided with evenly distributed insertion holes, and the front end of each self-locking block is provided with insertion holes. Pins are inserted between the insertion holes and the radially adjacent insertion holes. The insertion holes of the mounting shaft, the insertion holes of the self-locking blocks and the pins cooperate to form a rigid locking structure, which further enhances the stability of the brush roller after installation and prevents it from falling off due to high-speed rotation or vibration.
[0008] Furthermore, a rotating shaft is fixedly connected to the rear side of each mounting shaft, and a gear is fixedly connected to the rear end of each rotating shaft. The two gears mesh together. A motor is installed at the rear end of the housing. The output shaft of the motor is fixedly connected to the center of the rear end face of the rotating shaft on the lower side. The input end of the motor is electrically connected to the output end of the control switch group. The transmission structure of the rotating shaft, gears and motor realizes the reverse synchronous rotation of the upper and lower brush rollers, ensuring the wiping of the upper and lower surfaces of the strip. At the same time, the motor provides stable power to meet the continuous working requirements.
[0009] Furthermore, the two spray heads are connected in series via a pipe. An input pipe is provided inside the branch port at the rear end of the pipe. The rear end of the input pipe passes through the side wall of the outer casing. A water pump is connected in series at the rear end of the input pipe. The input end of the water pump is electrically connected to the output end of the control switch group. The connection structure of the pipe, the input pipe and the water pump realizes the centralized supply of degreasing agent or clean water and the series control of the spray heads, ensuring stable spray pressure and improving the utilization rate of degreasing agent.
[0010] Furthermore, the lower interior of the outer casing is provided with a collection tank, and a discharge tank is provided at the outlet at the lower end of the collection tank. An inclined plate is provided between the front and rear inner walls of the collection tank. The arrangement of the collection tank, the discharge tank and the inclined plate enables the centralized collection and diversion of waste liquid, avoids oil residue from polluting the equipment or workshop environment, and facilitates subsequent waste liquid treatment.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This degreasing device for hot-dip galvanized sheet and strip processing has the following advantages: This degreasing device for hot-dip galvanized sheet and strip processing achieves rapid installation and removal of the brush roller through the cooperation of the arc-shaped insert plate and the self-locking block, as well as the axial locking of the limiting plate. It eliminates the need for complex tools and cumbersome steps required by traditional bolt fixing, significantly shortening the brush roller replacement time and greatly improving equipment maintenance efficiency. On the other hand, the multiple fixing structures (radial limiting of the self-locking block, rigid connection of the pin, and axial constraint of the limiting plate) ensure the stability of the brush roller during high-speed rotation, effectively avoiding the problem of falling off due to vibration. This simplifies the operation process and ensures the reliability of equipment operation. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram showing a cross-sectional view of the front side of the outer shell of this utility model; Figure 3 This is a schematic diagram of the structure on the right side of the outer shell of this utility model; Figure 4 This is a schematic diagram of the structure of the rear side of the outer shell of this utility model; Figure 5 This is a partial structural diagram of the brush roller and mounting shaft of this utility model; Figure 6 This is a partial cross-sectional view of the mounting shaft of this utility model. Figure 7 This is an enlarged structural schematic diagram of point A of this utility model; Figure 8 This is a schematic diagram showing a partial explosion of the brush roller and mounting shaft of this utility model; Figure 9 This is a schematic diagram showing the planar comparison of the slot, self-locking block, and limiting plate of this utility model.
[0013] In the diagram: 1. Outer shell; 2. Replacement component; 21. Arc-shaped insert plate; 22. Limiting plate; 23. Slot; 24. Rotating cavity; 25. Clearance groove; 26. Self-locking block; 261. Insertion hole; 27. Replacement plate; 28. Spring; 29. Sliding column; 3. Brush roller; 4. Spray head; 5. Pipe; 6. Water pump; 7. Limiting plate; 8. Mounting shaft; 9. Control switch group; 10. Insertion hole; 11. Pin; 12. Rotating shaft; 13. Gear; 14. Motor; 15. Collection tank; 16. Inclined plate; 17. Discharge tank; 18. Material outlet; 19. Input pipe. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-9This embodiment provides a technical solution: an oil removal device for hot-dip galvanized sheet processing, including a housing 1 (the front side wall of the housing 1 is connected to a door via a hinge, and a locking device is provided between the right end of the door and the housing 1, the locking device being a commonly used locking device structure in the prior art), a control switch group 9 is provided on the front side of the housing 1, the input end of the control switch group 9 is electrically connected to an external power source, and the interior of the housing 1 is provided with symmetrically arranged spray heads 4, the two spray heads 4 are connected in series via a pipe 5, and an input pipe 19 is provided inside the branch port at the rear end of the pipe 5, the rear end of the input pipe 19 passing through the side wall of the housing 1 (the worker will then insert the outer...). The outlet of the degreasing agent tank is connected to the rear end of the inlet pipe 19. A water pump 6 is connected in series at the rear end of the inlet pipe 19. The input end of the water pump 6 is electrically connected to the output end of the control switch group 9. The interior of the outer casing 1 is provided with symmetrical brush rollers 3. The left and right side walls of the outer casing 1 are provided with material inlets 18 (a track can be installed between the left and right inner walls of the outer casing 1. The track is located between the two material inlets 18. The worker pushes the conveyor belt into the outer casing 1 from the material inlet 18 on the right side. The track provides load-bearing capacity for the conveyor belt and reduces the force required for the worker to push the conveyor belt. There is a notch in the middle of the track corresponding to the spray head 4 and the brush roller 3). The interior of the outer casing 1 A collection trough 15 is provided at the lower end of the device, and a discharge trough 17 is provided at the outlet at the lower end of the collection trough 15. An inclined plate 16 is provided between the front and rear inner walls of the collection trough 15. The hot-dip galvanized steel strip enters the device through the material port 18 on the right side wall of the outer casing 1. Under the external pushing equipment or manual pushing, it moves to the left under the support of the track. The hot-dip galvanized steel strip is degreased by the combined action of the spray head 4 for cleaning and the brush roller 3 for wiping. The control switch group 9 starts the water pump 6, and the degreasing agent or clean water is transported through the input pipe 19 and the pipeline 5 to the upper and lower symmetrical spray heads 4, which spray the upper and lower surfaces of the steel strip under high pressure to initially dissolve the surface grease. The switch group 9 starts the motor 14, and the motor output shaft drives the lower rotating shaft 12 to rotate. Through two meshing gears 13, the upper rotating shaft 12 is driven to rotate in the opposite direction, which in turn drives the mounting shaft 8 connected to the rotating shaft 12 to rotate. This causes the brush rollers 3 on the mounting shaft 8 to rotate synchronously (the upper and lower brush rollers rotate in opposite directions), which deeply wipes the oil and impurities remaining on the surface of the strip. The sprayed wastewater mixes with the wiped oil and falls into the collection tank 15 at the bottom of the housing 1. It is then guided by the inclined plate 16 to the discharge tank 17 for centralized recycling. The cleaning of the hot-dip galvanized strip completes the degreasing work, and also includes the replacement of component 2. Replacement component 2: It includes an arc-shaped insert plate 21, a limiting plate 22, a slot 23, a rotating cavity 24, a clearance groove 25, and a self-locking block 26. The rear side wall of the outer casing 1 is rotatably connected to symmetrically distributed mounting shafts 8. The slots 23 are evenly opened on the front side of the two mounting shafts 8. The interior of each mounting shaft 8 is provided with a rotating cavity 24, and the rotating cavity 24 is connected to the adjacent slot 23 on the front side. The self-locking blocks 26 are all set inside the slots 23 (the inner wall of the slot 23 away from the center of the mounting shaft 8 is provided with a strip-shaped opening, and the outer arc surface of the self-locking block 26 away from the center of the mounting shaft 8 is provided with a lever, and the lever is located in the radially adjacent strip-shaped opening). The arc-shaped insert plate 21 is evenly arranged on the rear side of the shaft of the two brush rollers 3. The arc-shaped insert plate 21 is connected to the self-locking block 26 on the rear side. 6. For coordinated use, the front side of the mounting shaft 8 is provided with a relief groove 25 corresponding to the adjacent arc-shaped insert 21 (the central axis of the relief groove 25 and the arc-shaped insert 21 coincides with the central axis of the adjacent mounting shaft 8). The limiting plates 22 are all fixedly connected to the rear side of the arc-shaped insert 21, and the limiting plates 22 are all located inside the adjacent rear rotating cavity 24 (viewed from the front side, the planes of the limiting plates 22, slots 23, and self-locking blocks 26 are all identical in structure). (The distance between the rear side of the limiting plate 22 and the rear side of the brush roller 3 shaft is equal to the distance between the inner rear wall of the rotating cavity 24 and the front side of the mounting shaft 8). The replacement assembly 2 also includes a replacement plate 27, a spring 28, and a sliding column 29. The replacement plate 27 is threadedly connected to the slot 23. The rear end of the internal slot 23 (the rear end of the internal slot 23 is a round hole) and the rear side of the self-locking block 26 are all fixedly connected to the sliding column 29. The front side of the outer arc of the sliding column 29 is provided with a limiting piece 7. The middle of the replacement plate 27 is provided with a clearance hole corresponding to the adjacent sliding column 29 on the front side. A spring 28 is provided between the front side of the replacement plate 27 and the rear side of the limiting piece 7. The spring 28 is sleeved on the outer arc surface of the adjacent sliding column 29 (the threaded replacement plate 27 facilitates the individual replacement of the spring 28. After unscrewing the replacement plate 27, remove the old spring 28, put the new spring 28 back on the outer arc surface of the sliding column 29, and screw the replacement plate 27 in again). The outer arc surface of the mounting shaft 8 is provided with evenly distributed insertion holes 10. The front end of the self-locking block 26 is provided with insertion holes 261 and insertion holes 262. Pins 11 are inserted into the radially adjacent insertion holes 10 of the mounting shaft 8 (the pins 11 are all interference-fitted with the insertion holes 261 and 10). Rotating shafts 12 are fixedly connected to the rear side of the mounting shaft 8, and gears 13 are fixedly connected to the rear end of each rotating shaft 12. The two gears 13 mesh with each other. A motor 14 is mounted at the rear end of the housing 1. The output shaft of the motor 14 is fixedly connected to the center of the rear end face of the rotating shaft 12 on the lower side. The input end of the motor 14 is electrically connected to the output end of the control switch group 9. The brush roller 3 is replaceable via the replacement component 2. Holding the brush roller 3, align the arc-shaped insert plate 21 on the rear side of the shaft with the self-locking block 26 in the mounting shaft 8 slot 23. At this time, the rear side of the limiting plate 22 contacts the front side of the self-locking block 26, pushing the brush roller 3 backward.The self-locking block 26 moves backward under the thrust of the limiting plate 22, which in turn drives the limiting plate 7 to compress the spring 28 (the spring 28 is sleeved on the outer arc surface of the sliding column, and its rear end abuts against the replacement plate 27) through the sliding column 29. During this process, the brush roller 3 shaft gradually approaches the mounting shaft 8 until the rear side of the shaft is in complete contact with the front side of the mounting shaft 8, completing the axial positioning. When the brush roller 3 is rotated, the arc-shaped insert 21 rotates with the shaft and enters the clearance groove 25 on the front side of the mounting shaft 8 (the clearance groove 25 is coaxial with the arc-shaped insert 21 to ensure smooth rotation). At the same time, the limiting plate 22 rotates into the rotating cavity 24 inside the mounting shaft 8. The distance between the front and rear inner walls matches the thickness of the limiting plate 22. The limiting plate 22 is confined within the rotating cavity and cannot move back and forth, thus locking the axial position of the brush roller 3. When the arc-shaped insert plate 21 is fully rotated into the clearance groove 25, the self-locking block 26 is no longer squeezed by the limiting plate 22. The spring 28 releases its preload, pushing the slide column 29 and the self-locking block 26 forward to reset. After resetting, the self-locking block 26 blocks the outside of the arc-shaped insert plate 21, restricting the radial displacement of the arc-shaped insert plate 21 and preventing the brush roller 3 from disengaging from the mounting shaft 8 during rotation. When the insertion hole 261 of the self-locking block 26 is aligned with the insertion hole 10 on the outer arc surface of the mounting shaft 8, the insertion... Insert pin 11 (pin 11 is interference-fitted with insertion holes 261 and 10) to rigidly fix the self-locking block 26 to the mounting shaft 8, completely preventing the brush roller from falling off due to vibration during operation. When disassembling the brush roller 3, pull out pin 11 (the interference fit between pin 11 and insertion holes 261 and 10 requires axial tension), releasing the rigid connection between the self-locking block 26 and the mounting shaft 8, allowing the self-locking block 26 to return to a movable state. Move the self-locking block 26 backward using the paddle inside the slot of the mounting shaft 8 (the paddle outside the self-locking block 26), causing the sliding column 29 and the limiting plate 7 to compress the spring 28 (the spring 28 moves along the sliding column 29). The outer arc surface of column 29 moves backward (storing preload) until the front side of locking block 26 is completely moved to the rear side of rotating cavity 24, releasing the radial limit on arc-shaped insert plate 21. The brush roller 3 rotates, causing arc-shaped insert plate 21 to rotate out of clearance groove 25, simultaneously driving limit plate 22 to rotate out of rotating cavity 24, until arc-shaped insert plate 21 and limit plate 22 re-enter slot 23. At this point, the brush roller 3 is pulled out to remove arc-shaped insert plate 21 and limit plate 22, enabling rapid replacement of brush roller 3 (solving the problem of cumbersome disassembly using traditional bolt fixing), while ensuring reliability during operation and significantly improving equipment maintenance efficiency.
[0016] The working principle of the degreasing device for hot-dip galvanized sheet and strip processing provided by this utility model is as follows: The hot-dip galvanized sheet and strip enter the device through the material inlet 18 on the right side wall of the outer casing 1. Under the external pushing equipment or manual pushing, it moves to the left under the support of the track. The degreasing of the hot-dip galvanized sheet and strip is completed by the synergistic action of the spray head 4 for cleaning and the brush roller 3 for wiping. The control switch group 9 starts the water pump 6, and the degreasing agent or clean water is delivered to the upper and lower symmetrical spray head 4 through the input pipe 19 and the pipeline 5. The upper and lower surfaces of the sheet and strip are sprayed with high pressure to initially dissolve the surface grease. The control switch group 9 starts the motor 14. The output shaft of the motor drives the lower rotating shaft 12 to rotate. Through two meshing gears 13, the upper rotating shaft 12 is synchronously driven to rotate in the opposite direction, thereby driving the upper rotating shaft 12 connected to the rotating shaft 12 to rotate in the opposite direction. Rotating the mounting shaft 8 causes the brush rollers 3 on the mounting shaft 8 to rotate synchronously (the upper and lower brush rollers rotate in opposite directions), deeply wiping away residual oil and impurities on the surface of the belt. The sprayed wastewater mixes with the wiped-off oil and falls into the collection tank 15 at the bottom of the outer casing 1, and is guided by the inclined plate 16 to the discharge tank 17 for centralized recycling. The brush rollers 3 are replaceable through the replacement component 2. Holding the brush roller 3, the arc-shaped insert 21 on the rear side of the shaft body is aligned with the self-locking block 26 in the slot 23 of the mounting shaft 8. At this time, the rear side of the limiting plate 22 contacts the front side of the self-locking block 26, pushing the brush roller 3 backward. The self-locking block 26 moves backward due to the thrust of the limiting plate 22, which drives the limiting plate 7 to compress the spring 28 (the spring 28 is sleeved on the outside of the sliding column) through the sliding column 29. The brush roller 3's shaft gradually approaches the mounting shaft 8 until the rear side of the shaft is in complete contact with the front side of the mounting shaft 8, completing axial positioning. The brush roller 3 rotates, and the arc-shaped insert 21 rotates with the shaft and enters the clearance groove 25 on the front side of the mounting shaft 8 (the clearance groove 25 and the arc-shaped insert 21 are coaxial to ensure smooth rotation). Simultaneously, the limiting plate 22 rotates into the rotating cavity 24 inside the mounting shaft 8. Because the distance between the front and rear inner walls of the rotating cavity 24 matches the thickness of the limiting plate 22, the limiting plate 22 is confined within the rotating cavity and cannot move back and forth, thus locking the axial position of the brush roller 3. When the arc-shaped insert 21 is fully inserted into the clearance groove 25, the self-locking block 26 is no longer squeezed by the limiting plate 22, and the spring 28 releases. Release the preload, pushing the slide 29 and self-locking block 26 forward to reset. After resetting, the self-locking block 26 blocks the outer side of the arc-shaped insert 21, limiting the radial displacement of the arc-shaped insert 21 and preventing the brush roller 3 from detaching from the mounting shaft 8 during rotation. When the insertion hole 261 of the self-locking block 26 aligns with the insertion hole 10 on the outer arc surface of the mounting shaft 8, insert the pin 11 (the pin 11 is interference-fitted with the insertion hole 261 and the insertion hole 10) to rigidly fix the self-locking block 26 to the mounting shaft 8, completely preventing the brush roller from falling off due to vibration during operation. When disassembling the brush roller 3, pull out the pin 11 (the interference fit between the pin 11 and the insertion hole 261 and the insertion hole 10 requires axial tension) to release the rigid connection between the self-locking block 26 and the mounting shaft 8, allowing the self-locking block 26 to return to a movable state.By using the paddle inside the slot of the mounting shaft 8 (the paddle outside the self-locking block 26), the self-locking block 26 is moved backward, causing the sliding column 29 and the limiting plate 7 to compress the spring 28 (the spring 28 moves backward along the outer arc surface of the sliding column 29, storing preload), until the front side of the self-locking block 26 has completely moved backward to the rear side of the rotating cavity 24, releasing the radial restriction on the arc-shaped insert 21. The brush roller 3 is then rotated, causing the arc-shaped insert 21 to rotate out of the clearance groove 25, simultaneously causing the limiting plate 22 to rotate out of the rotating cavity 24, until the arc-shaped insert 21 and the limiting plate 22 re-enter the slot 23. At this point, the brush roller 3 is pulled to remove the arc-shaped insert 21 and the limiting plate 22, completing the disassembly.
[0017] It is worth noting that the water pump 6 disclosed in the above embodiments is recommended to be a CRN3-18 stainless steel centrifugal pump, the motor 14 can be a servo motor, and the control switch group 9 is provided with buttons that correspond one-to-one with the water pump 6 and the motor 14 and are used to control their switching.
[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A degreasing device for hot-dip galvanized sheet and strip processing, comprising a housing (1), wherein the housing (1) is provided with vertically symmetrical spray heads (4), and the housing (1) is provided with vertically symmetrical brush rollers (3), and the left and right side walls of the housing (1) are provided with material inlets (18), characterized in that: This also includes replacing components (2); Replacement component (2): It includes an arc-shaped insert plate (21), a limiting plate (22), a slot (23), a rotating cavity (24), a clearance groove (25), and a self-locking block (26). The rear side wall of the outer shell (1) is rotatably connected to symmetrically distributed mounting shafts (8). The slots (23) are evenly opened on the front side of the two mounting shafts (8). The interior of each mounting shaft (8) is provided with a rotating cavity (24). The rotating cavities (24) are all connected to the adjacent slots (23) on the front side. The self-locking blocks (26) are all The arc-shaped inserts (21) are evenly arranged on the rear side of the shaft of the two brush rollers (3) and are all used in conjunction with the self-locking blocks (26) adjacent to the rear side. The front side of the mounting shaft (8) is provided with clearance grooves (25) corresponding to the arc-shaped inserts (21) adjacent to the front side. The limiting plates (22) are all fixedly connected to the rear side of the arc-shaped inserts (21) and are all located inside the rotating cavity (24) adjacent to the rear side.
2. The degreasing device for hot-dip galvanized sheet and strip processing according to claim 1, characterized in that: The front side of the housing (1) is provided with a control switch group (9), and the input end of the control switch group (9) is electrically connected to an external power source.
3. The degreasing device for hot-dip galvanized sheet and strip processing according to claim 1, characterized in that: The replacement assembly (2) also includes a replacement plate (27), a spring (28) and a slide (29). The replacement plate (27) is threaded to the inner rear end of the slot (23). The slide (29) is fixedly connected to the rear side of the self-locking block (26). The front side of the outer arc of the slide (29) is provided with a limiting piece (7). The middle part of the replacement plate (27) is provided with a clearance hole corresponding to the slide (29) adjacent to the front side. The front side of the replacement plate (27) and the rear side of the limiting piece (7) are provided with a spring (28). The spring (28) is sleeved on the outer arc surface of the adjacent slide (29).
4. The degreasing device for hot-dip galvanized sheet and strip processing according to claim 1, characterized in that: The outer arc surface of the mounting shaft (8) is provided with evenly distributed insertion holes (10), and the front end of the self-locking block (26) is provided with insertion holes (261). Insert pins (11) are inserted between the insertion holes (261) and the radially adjacent insertion holes (10).
5. The degreasing device for hot-dip galvanized sheet and strip processing according to claim 2, characterized in that: The rear side of the mounting shaft (8) is fixedly connected to a rotating shaft (12), and the rear end of the rotating shaft (12) is fixedly connected to a gear (13). The two gears (13) mesh together. The rear end of the housing (1) is equipped with a motor (14). The output shaft of the motor (14) is fixedly connected to the center of the rear end face of the rotating shaft (12) on the lower side. The input end of the motor (14) is electrically connected to the output end of the control switch group (9).
6. The degreasing device for hot-dip galvanized sheet and strip processing according to claim 2, characterized in that: Two spray heads (4) are connected in series by a pipe (5). The branch port at the rear end of the pipe (5) is provided with an input pipe (19). The rear end of the input pipe (19) passes through the side wall of the outer shell (1). A water pump (6) is connected in series at the rear end of the input pipe (19). The input end of the water pump (6) is electrically connected to the output end of the control switch group (9).
7. The degreasing device for hot-dip galvanized sheet and strip processing according to claim 1, characterized in that: The lower end of the inner shell (1) is provided with a collection groove (15), and a discharge groove (17) is provided at the discharge outlet at the lower end of the collection groove (15). An inclined plate (16) is provided between the front and rear inner walls of the collection groove (15).