Air knife for hot-dip galvanized steel sheet production

Abstract

The utility model relates to the field of equipment for hot dip galvanizing sheet production in metallurgical industry, concretely is a kind of hot dip galvanizing sheet production air knife, bearing support is symmetrically set in the both sides of galvanization operation conveying belt;Rotary component, rotary component includes rotating motor, rotating part, first rotating seat, second rotating seat and rotating shaft;Positioning assembly, positioning assembly is set on the side wall of second rotating seat;Air knife component, air knife component is set on rotating shaft;Gas delivery component;Deslagging component, deslagging component includes horizontal shift drive part, guide part, deslagging support and cleaning part, guide part and horizontal shift drive part are respectively set on both sides bearing support;Controller component, controller component is electrically connected with positioning assembly, rotating motor and horizontal shift drive part respectively.By rotating new air knife is rotated to working position and continue to carry out the work of blowing, simultaneously, the air knife blocked is turned to deslagging place and carries out deslagging treatment.

Description

Technical Field

[0001] This utility model relates to the field of equipment for hot-dip galvanized sheet production in the metallurgical industry, and in particular to an air knife for hot-dip galvanized sheet production. Background Technology

[0002] On hot-dip galvanized sheet production lines, air knives are typically used to purge the molten zinc from the sheet to adjust the thickness of the galvanized layer on the strip. Compressed air is supplied to the air knife, and the air is ejected through the long, slit-shaped nozzles of the air knife body, forming a flat airflow that facilitates purging. After the steel sheet coated with molten zinc is removed from the zinc pot, before the molten zinc solidifies, the flat airflow purges the molten zinc, blowing away any excess molten zinc back into the zinc pot. The thickness of the galvanized layer is controlled by the intensity of the airflow purging.

[0003] In the existing technology, the air knife device is located directly above the zinc pot. During the use of the air knife, zinc dross may splash onto the air knife nozzle at any time, clogging the nozzle and preventing the air knife from achieving its original effect, thus affecting the thickness and surface quality of the zinc plate.

[0004] Therefore, in order to ensure uniform zinc thickness and a smooth zinc surface, zinc slag at the nozzle must be removed at any time. Currently, the slag removal method is generally manual. Workers hold a slag removal plate and insert the top of the plate into the slit nozzle to remove the slag. Manual operation is prone to causing nozzle collisions and damage, affecting the service life of the air knife. Moreover, the machine often needs to be stopped for slag removal, which affects the overall production efficiency. Utility Model Content

[0005] This utility model provides an air knife for hot-dip galvanized sheet production. When the air knife nozzle is clogged, a new air knife can be rotated to the working position to continue the blowing operation. At the same time, the clogged air knife can be rotated to the slag removal area for slag removal, thereby improving production efficiency and reducing manual intervention.

[0006] To achieve the above objectives, this utility model provides an air knife for hot-dip galvanized sheet production, characterized in that it comprises: The support brackets are symmetrically arranged on both sides of the galvanized operation conveyor belt; A rotating assembly includes a rotating motor, a rotating component, a first rotating seat, a second rotating seat, and a rotating shaft. The rotating motor and the first rotating seat are mounted on the same side of the support bracket, and the second rotating seat is mounted on the support bracket on the other side. The two ends of the rotating shaft are respectively rotatably mounted on the first rotating seat and the second rotating seat. The rotating motor controls the rotation of one end of the rotating shaft through the rotating component. A positioning component is disposed on the side wall of the second rotating seat near the other end of the rotating shaft; An air knife assembly is disposed on the rotating shaft and located between the first rotating seat and the second rotating seat; An air delivery assembly is provided with an air cavity at one end of the rotating shaft and an air inlet at the other end of the rotating shaft. The air delivery assembly is disposed on the rotating shaft near the first rotating seat, and the two ends of the air delivery assembly are respectively connected to the air knife assembly and the air cavity of the rotating shaft. A slag-cleaning assembly includes a transverse drive unit, a guide unit, a slag-cleaning bracket, and a cleaning unit. The guide unit and the transverse drive unit are respectively disposed on the two sides of the bearing bracket, and the guide unit is located on one side of the first rotating seat and the second rotating seat. The slag-cleaning bracket is slidably disposed on the guide unit. Transverse supports are provided at both ends of the slag-cleaning bracket. The two sides of the transverse drive unit drive the transverse supports at both ends of the slag-cleaning bracket. A slag-cleaning groove is formed on the slag-cleaning bracket. The cleaning unit includes a cleaning component and a slag-cleaning pushing device. The slag-cleaning pushing device is disposed on the transverse support near the first rotating seat. The output end of the slag-cleaning pushing device cooperates with the cleaning component. The cleaning component is slidably disposed on the slag-cleaning groove. A controller assembly is electrically connected to the positioning assembly, the rotary motor, and the lateral drive unit, respectively.

[0007] Furthermore, the rotating component includes a driving gear and a driven gear, the driving gear being disposed at the output end of the rotating motor, and the driven gear being disposed at one end of the rotating shaft.

[0008] Furthermore, the air knife assembly includes an air knife mounting bracket and a zinc blowing air knife. The air knife mounting brackets are symmetrically arranged on the rotating shaft, and two air knife mounting brackets are located between the first rotating seat and the second rotating seat. Multiple fixing support plates are arranged circumferentially between the two air knife mounting brackets. Multiple zinc blowing air knives are bolted to the fixing support plates. Multiple auxiliary positioning plates are arranged circumferentially on the air knife mounting brackets.

[0009] Furthermore, the positioning component includes a positioning photosensitive sensor and a positioning stop. A positioning ring groove is formed on one side of the second rotating seat. The positioning stop is disposed on the other end of the rotating shaft. The positioning photosensitive sensor is disposed in the positioning ring groove. A plurality of first limiting plates are arranged circumferentially on the positioning stop. The first limiting plates cooperate with the positioning photosensitive sensor, and the circumferential angle of the first limiting plates on the rotating shaft is the same as the circumferential angle of the auxiliary positioning plate on the rotating shaft.

[0010] Furthermore, the gas delivery assembly includes a first gas delivery head and a gas delivery pipeline. The first gas delivery head is disposed at the air inlet, and the gas delivery pipeline is L-shaped. One end of the gas delivery pipeline passes through the air knife fixing frame and is connected to the zinc blowing air knife, and the other end of the gas delivery pipeline extends into the air cavity of the rotating shaft.

[0011] Furthermore, the lateral movement drive unit includes a lateral movement motor, a lateral movement base, and a lateral movement screw. The output end of the lateral movement motor drives one end of the lateral movement screw, and the other end of the lateral movement screw is rotatably mounted on the lateral movement base. The lateral movement base is threadedly engaged with the lateral movement screw.

[0012] Furthermore, the guide portion includes a guide seat and a second limiting plate. The second limiting plate is disposed at one end of the guide seat and is close to the transverse motor. A transverse channel is formed on the guide seat, and the transverse support is slidably disposed in the transverse channel.

[0013] Furthermore, the cleaning component includes a cleaning blade, a cleaning bracket, a limiting block, and an auxiliary pushing block. One end of the cleaning bracket is provided with a blade fixing groove, and the cleaning blade is disposed in the blade fixing groove. The other end of the cleaning bracket is fixed to the limiting block by bolts. The auxiliary pushing block is disposed on the limiting block, and the output end of the slag removal pushing device cooperates with the auxiliary pushing block.

[0014] Furthermore, the control component includes a PLC and a control panel, wherein the control panel is electrically connected to the PLC.

[0015] Compared with the prior art, the air knife for hot-dip galvanized sheet production according to an embodiment of the present invention is provided with a rotating component and an air knife component on the rotating component. The air knife component is provided with multiple zinc blowing air knives, and the zinc blowing air knives on the air knife component are located in different positions. When the zinc blowing air knife in the working state is blocked by zinc dross, the rotating component rotates, rotating the zinc blowing air knife with zinc dross blocking the nozzle to the dross cleaning position, and rotating the zinc blowing air knives in the remaining positions to the spraying position to continue spraying. By setting an air supply component, air is continuously supplied to the air knife component without affecting the rotation of the rotating component. A dross cleaning component is set at the dross cleaning position. The dross cleaning component is then turned on to clean the nozzle of the zinc blowing air knife with zinc dross blocking the dross at the dross cleaning position, thereby achieving the dross cleaning effect. In addition, a positioning component is set to ensure that the remaining zinc blowing air knives accurately reach the spraying position after rotation. At the same time, a controller component is set to control each component. Attached Figure Description

[0016] Figure 1 This is a first-view schematic diagram of the overall structure of an air knife for hot-dip galvanized sheet production according to the present invention. Figure 2 This is a second-view schematic diagram of the overall structure of an air knife for hot-dip galvanized sheet production according to the present invention. Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a third-view schematic diagram of the overall structure of an air knife for hot-dip galvanized sheet production according to this utility model. Figure 5 for Figure 4 A magnified view of a portion of region B in the middle; and Figure 6 This is a schematic diagram of the transverse cross-sectional structure of the rotating shaft in an air knife used for hot-dip galvanized sheet production according to the present invention.

[0017] Figure label: 1000. Support bracket; 2000. Rotating assembly; 2100. Rotating motor; 2210. Drive gear; 2220. Driven gear; 2300. First rotating seat; 2400. Second rotating seat; 2410. Positioning ring groove; 2500. Rotating shaft; 2510. Mid-air cavity; 2520. Air inlet; 3000. Positioning component; 3100. Positioning photosensitive sensor; 3200. Positioning stop; 3300. First limiting plate; 4000. Air knife assembly; 4100. Air knife holder; 4200. Zinc blowing air knife; 4300. Fixing plate; 4400. Auxiliary positioning plate; 5000. Gas transmission assembly; 5100. First gas transmission head; 5200. Gas transmission pipeline; 6000. Slag removal assembly; 6100. Lateral movement drive unit; 6110. Lateral movement motor; 6120. Lateral movement seat; 6130. Lateral movement lead screw; 6200. Guide unit; 6210. Guide seat; 6211. Lateral movement channel; 6220. Second limit plate; 6300. Slag removal bracket; 6310. Lateral movement support; 6320. Slag removal chute; 6400. Sweeping unit; 6410. Sweeping component; 6411. Sweeping blade; 6412. Sweeping bracket; 64121. Blade fixing slot; 6413. Limit block; 6414. Auxiliary push block; 6420. Slag removal push device. Detailed Implementation

[0018] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0019] like Figures 1-6 As shown, an air knife for hot-dip galvanized sheet production according to an embodiment of the present invention includes: The components include: a support bracket 1000, a rotating assembly 2000, a positioning assembly 3000, an air knife assembly 4000, an air delivery assembly 5000, a slag removal assembly 6000, and a controller assembly. The 1000 bearing supports are symmetrically arranged on both sides of the galvanized operating conveyor belt; The rotating assembly 2000 includes a rotating motor 2100, a rotating component, a first rotating seat 2300, a second rotating seat 2400, and a rotating shaft 2500. The rotating motor 2100 and the first rotating seat 2300 are mounted on the same side of the support bracket 1000, and the second rotating seat 2400 is mounted on the other side of the support bracket 1000. The two ends of the rotating shaft 2500 are rotatably mounted on the first rotating seat 2300 and the second rotating seat 2400, respectively. The rotating motor 2100 controls the rotation of one end of the rotating shaft 2500 through the rotating component. The positioning component 3000 is disposed on the side wall of the second rotating seat 2400 near the other end of the rotating shaft 2500; The air knife assembly 4000 is mounted on the rotating shaft 2500 and is located between the first rotating seat 2300 and the second rotating seat 2400. The rotating shaft 2500 is provided with an air cavity 2510, and the other end of the rotating shaft 2500 is provided with an air inlet 2520. The air delivery assembly 5000 is provided on the rotating shaft 2500 near the first rotating seat 2300. The two ends of the air delivery assembly 5000 are respectively connected to the air knife assembly 4000 and the air cavity 2510 of the rotating shaft 2500. The slag removal assembly 6000 includes a transverse drive unit 6100, a guide unit 6200, a slag removal bracket 6300, and a cleaning unit 6400. The guide unit 6200 and the transverse drive unit 6100 are respectively mounted on the two side bearing brackets 1000, and the guide unit 6200 is located on one side of the first rotating seat 2300 and the second rotating seat 2400. The slag removal bracket 6300 is slidably mounted on the guide unit 6200, and transverse supports 6310 are provided at both ends of the slag removal bracket 6300. The drive unit 6100 drives the transverse supports 6310 at both ends of the slag cleaning bracket 6300 respectively. The slag cleaning bracket 6300 has a slag cleaning groove 6320. The cleaning unit 6400 includes a cleaning component 6410 and a slag cleaning pushing device 6420. The slag cleaning pushing device 6420 is set on the transverse support 6310 near the first rotating seat 2300. The output end of the slag cleaning pushing device 6420 cooperates with the cleaning component 6410. The cleaning component 6410 is slidably set on the slag cleaning groove 6320. The controller assembly is electrically connected to the positioning assembly 3000, the rotary motor 2100, and the transverse drive unit 6100, respectively. In this invention, when a user uses an air knife for hot-dip galvanized sheet production to blow zinc-coated steel sheets that have been removed from a zinc pot, if the user discovers that the nozzle of a single zinc-blowing air knife 4200 in the air knife assembly 4000 is clogged with zinc dross, the user controls the control component to drive the rotating motor 2100. The rotating motor 2100 drives the rotating component to rotate, thereby causing the rotating shaft 2500 to rotate as a whole. At this time, the air knife assembly 4000 located on the rotating shaft 2500 rotates synchronously, turning the zinc-blowing air knife 4200 with the clogged nozzle away from the blowing position and away from the positioning component 3000. When the positioning component 3000 senses the signal again, another zinc-blowing air knife 4200 on the air knife assembly 4000 has already rotated to the blowing position and continues to blow the zinc-coated steel sheet. At this time, the zinc blowing air knife 4200, whose nozzle is clogged with zinc dross, has rotated to the dross-cleaning position. The user control controller assembly then activates the lateral drive unit 6100, causing the lateral drive unit 6100 to move the lateral support 6310 within the guide unit 6200 toward the rotation shaft 2500. This causes the cleaning component 6410 of the cleaning unit 6400 to insert into the nozzle of the zinc blowing air knife 4200, thereby bringing the cleaning component 6410 into contact with the inner wall of the nozzle. At this point, the user control controller assembly activates the dross-cleaning push device 64. 20. The output end of the slag removal pushing device 6420 gradually pushes the cleaning component, causing the cleaning component to slide in the slag removal groove 6320 of the slag removal bracket 6300. At the same time, the cleaning component 6410 scrapes out the zinc slag on the inner wall of the nozzle of the zinc blowing air knife 4200 during the sliding process. After the slag removal is completed, the user controls the slag removal pushing device 6420 to return to the initial position and controls the transverse drive unit 6100 to return to the initial position, waiting for the next rotation. During the above slag removal operation, the zinc blowing air knife 4200 located at the blowing position is still in a continuous working state.

[0020] Furthermore, such as Figure 2 As shown, the rotating component includes a drive gear 2210 and a driven gear 2220. The drive gear 2210 is located at the output end of the rotating motor 2100, and the driven gear 2220 is located at one end of the rotating shaft 2500. The rotating motor 2100 is a servo motor, which can precisely control the position. At the same time, the gear meshing makes the rotation of the rotating shaft 2500 more stable. When the positioning component 3000 generates a sensing signal, the rotating motor 2100 can stop in time.

[0021] Furthermore, such as Figure 2As shown, the air knife assembly 4000 includes an air knife holder 4100 and a zinc blowing air knife 4200. The air knife holders 4100 are symmetrically arranged on the rotating shaft 2500, and the two air knife holders 4100 are located between the first rotating seat 2300 and the second rotating seat 2400. Multiple fixing plates 4300 are arranged circumferentially between the two air knife holders 4100. Multiple zinc blowing air knives 4200 are bolted to the fixing plates 4300. Multiple auxiliary positioning plates 4400 are arranged circumferentially on the air knife holders 4100. Figure 2 As shown, multiple fixed support plates 4300 between the air knife fastener frame form three workstations, namely the blowing position, the slag cleaning position and the waiting position. At the same time, the auxiliary positioning plate 4400 corresponds to the fixed support plate 4300 on the circumference. Therefore, the auxiliary positioning plate 4400 represents the above three workstations respectively.

[0022] Furthermore, such as Figure 4 and Figure 5 As shown, the positioning assembly 3000 includes a positioning photosensitive sensor 3100 and a positioning stop 3200. A positioning ring groove 2410 is formed on one side of the second rotating seat 2400. The positioning stop 3200 is mounted on the other end of the rotating shaft 2500. The positioning photosensitive sensor 3100 is disposed within the positioning ring groove 2410. Multiple first limiting plates 3300 are circumferentially arranged on the positioning stop 3200. The first limiting plates 3300 cooperate with the positioning photosensitive sensor 3100, and the circumferential angle of the first limiting plates 3300 on the rotating shaft 2500 is the same as the circumferential angle of the auxiliary positioning plate 4400 on the rotating shaft 2500. Figure 3 As shown, after determining the working angle and position of the zinc blowing air knife 4200, the positioning photo sensor 3100 is fixed in the positioning ring groove 2410 by tightening the bolts, so that the position of the positioning photo sensor 3100 corresponds to the second limiting plate 6220 opposite to the blowing position. When the nozzle of the zinc blowing air knife 4200 in the blowing position is blocked, the zinc blowing air knife 4200 in the blowing position is controlled to rotate away, and the zinc blowing air knife 4200 in the waiting position rotates to the original blowing position. When the second limiting plate 6220 of the waiting position cooperates with the positioning photo sensor 3100, the positioning photo sensor 3100 generates a corresponding signal and transmits it to the controller assembly. After processing the signal, the controller assembly controls the rotating motor 2100 to stop. At this time, the original slag removal position reaches the waiting position, and the blowing position reaches the original slag removal position.

[0023] Furthermore, such as Figure 1 , Figure 4 and Figure 6As shown, the gas delivery assembly 5000 includes a first gas delivery head 5100 and a gas delivery pipeline 5200. The first gas delivery head 5100 is located at the air inlet 2520. The gas delivery pipeline 5200 is L-shaped, with one end passing through the air knife fixing frame 4100 and connecting to the zinc blowing air knife 4200. The other end of the gas delivery pipeline 5200 extends into the intermediate air cavity 2510 of the rotating shaft 2500. The first gas delivery head 5100 adopts a pneumatic rotary joint, which allows compressed air to still enter the intermediate air cavity 2510 of the rotating shaft 2500 when the rotating shaft 2500 rotates. After entering the intermediate air cavity 2510 of the rotating shaft 2500, the compressed air is then delivered into the zinc blowing air knife 4200 through the gas delivery pipeline 5200.

[0024] Furthermore, such as Figure 4 As shown, the lateral drive unit 6100 includes a lateral motor 6110, a lateral support 6120, and a lateral lead screw 6130. The output end of the lateral motor 6110 drives one end of the lateral lead screw 6130, and the other end of the lateral lead screw 6130 is rotatably mounted on the lateral support 6120. The lateral support 6310 is threadedly engaged with the lateral lead screw 6130. The lateral motor 6110 drives the lateral lead screw 6130 to rotate, causing the lateral support 6310 to move laterally on the lateral lead screw 6130, thereby driving the cleaning bracket 6412 to move laterally.

[0025] Furthermore, such as Figure 4 As shown, the guide portion 6200 includes a guide seat 6210 and a second limiting plate 6220. The second limiting plate 6220 is disposed at one end of the guide seat 6210 and is located near the transverse motor 6110. A transverse channel 6211 is formed on the guide seat 6210, and a transverse support 6310 is slidably disposed within the transverse channel 6211. Figure 4 As shown, the transverse channel 6211 assists the transverse support 6310 in moving laterally, while the second limiting plate 6220 is used to prevent the transverse support 6310 from approaching the transverse motor 6110. At the same time, the second limiting plate 6220 can help determine the engagement between the cleaning component 6410 and the nozzle of the zinc blowing air knife 4200.

[0026] Furthermore, such as Figure 2 , Figure 3 and Figure 4As shown, the cleaning component 6410 includes a cleaning blade 6411, a cleaning bracket 6412, a limiting block 6413, and an auxiliary pushing block 6414. One end of the cleaning bracket 6412 is provided with a blade fixing groove 64121, and the cleaning blade 6411 is disposed in the blade fixing groove 64121. The other end of the cleaning bracket 6412 is fixed to the limiting block 6413 by bolts. The auxiliary pushing block 6414 is provided on the limiting block 6413. The output end of the slag removal pushing device 6420 cooperates with the auxiliary pushing block 6414. During installation, first insert the other end of the cleaning bracket 6412 into the slag removal groove 6320. Then, overlap the limiting block 6413 with the other end of the cleaning bracket 6412 and screw in the bolts for fixation. Next, connect the auxiliary pushing block 6414 to the output end of the slag removal pushing device 6420 to facilitate the slag removal pushing device 6420 in controlling the cleaning component 6410. When the transverse support 6310 contacts the second limiting plate 6220, the cleaning blade 6411 extends into the inner wall of the nozzle of the zinc blowing air knife 4200. At this time, after the slag removal pushing device 6420 is started, the output end of the slag removal pushing device 6420 will drive the cleaning blade 6411 to slide in the nozzle of the transverse zinc blowing air knife 4200, thereby scraping off the zinc slag on the inner wall of the nozzle of the zinc blowing air knife 4200.

[0027] Furthermore, the control components include a PLC and a control panel, with the control panel electrically connected to the PLC. The PLC uses existing technology, such as Siemens products. The PLC can pre-store corresponding programs, and the control panel can control the rotation motor 2100, the transverse motor 6110, and the slag removal push device 6420 to start and stop via the PLC. The rotation motor 2100 and the positioning photosensitive sensor 3100 are controlled by the PLC to start and stop the rotation motor 2100.

[0028] Preferably, the slag removal driving device 6420 can adopt a multi-stage telescopic cylinder in the prior art. In the figure, the slag removal driving device 6420 adopts a multi-stage telescopic cylinder. The multi-stage telescopic cylinder in the figure is only a schematic diagram. Its selection specifications are determined according to the actual site conditions.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. An air knife for hot-dip galvanized sheet production, characterized in that, include: The support brackets are symmetrically arranged on both sides of the galvanized operation conveyor belt; A rotating assembly includes a rotating motor, a rotating component, a first rotating seat, a second rotating seat, and a rotating shaft. The rotating motor and the first rotating seat are mounted on the same side of the support bracket, and the second rotating seat is mounted on the support bracket on the other side. The two ends of the rotating shaft are respectively rotatably mounted on the first rotating seat and the second rotating seat. The rotating motor controls the rotation of one end of the rotating shaft through the rotating component. A positioning component is disposed on the side wall of the second rotating seat near the other end of the rotating shaft; An air knife assembly is disposed on the rotating shaft and located between the first rotating seat and the second rotating seat; An air delivery assembly is provided with an air cavity at one end of the rotating shaft and an air inlet at the other end of the rotating shaft. The air delivery assembly is disposed on the rotating shaft near the first rotating seat, and the two ends of the air delivery assembly are respectively connected to the air knife assembly and the air cavity of the rotating shaft. A slag-cleaning assembly includes a transverse drive unit, a guide unit, a slag-cleaning bracket, and a cleaning unit. The guide unit and the transverse drive unit are respectively disposed on the two sides of the bearing bracket, and the guide unit is located on one side of the first rotating seat and the second rotating seat. The slag-cleaning bracket is slidably disposed on the guide unit. Transverse supports are provided at both ends of the slag-cleaning bracket. The two sides of the transverse drive unit drive the transverse supports at both ends of the slag-cleaning bracket. A slag-cleaning groove is formed on the slag-cleaning bracket. The cleaning unit includes a cleaning component and a slag-cleaning pushing device. The slag-cleaning pushing device is disposed on the transverse support near the first rotating seat. The output end of the slag-cleaning pushing device cooperates with the cleaning component. The cleaning component is slidably disposed on the slag-cleaning groove. A controller assembly is electrically connected to the positioning assembly, the rotary motor, and the lateral drive unit, respectively.

2. The air knife for hot-dip galvanized sheet production according to claim 1, characterized in that, The rotating component includes a driving gear and a driven gear. The driving gear is located at the output end of the rotating motor, and the driven gear is located at one end of the rotating shaft.

3. The air knife for hot-dip galvanized sheet production according to claim 1, characterized in that, The air knife assembly includes an air knife mounting bracket and a zinc blowing air knife. The air knife mounting brackets are symmetrically arranged on the rotating shaft, and two air knife mounting brackets are located between the first rotating seat and the second rotating seat. Multiple fixing support plates are arranged circumferentially between the two air knife mounting brackets. Multiple zinc blowing air knives are bolted to the fixing support plates. Multiple auxiliary positioning plates are arranged circumferentially on the air knife mounting brackets.

4. The air knife for hot-dip galvanized sheet production according to claim 3, characterized in that, The positioning assembly includes a positioning photosensitive sensor and a positioning stop. A positioning ring groove is formed on one side of the second rotating seat. The positioning stop is disposed on the other end of the rotating shaft. The positioning photosensitive sensor is disposed in the positioning ring groove. A plurality of first limiting plates are arranged circumferentially on the positioning stop. The first limiting plates cooperate with the positioning photosensitive sensor, and the circumferential angle of the first limiting plates on the rotating shaft is the same as the circumferential angle of the auxiliary positioning plate on the rotating shaft.

5. The air knife for hot-dip galvanized sheet production according to claim 4, characterized in that, The gas delivery assembly includes a first gas delivery head and a gas delivery pipeline. The first gas delivery head is disposed at the air inlet. The gas delivery pipeline is L-shaped. One end of the gas delivery pipeline passes through the air knife fixing frame and is connected to the zinc blowing air knife. The other end of the gas delivery pipeline extends into the air cavity of the rotating shaft.

6. The air knife for hot-dip galvanized sheet production according to claim 1, characterized in that, The lateral drive unit includes a lateral motor, a lateral support, and a lateral lead screw. The output end of the lateral motor drives one end of the lateral lead screw, and the other end of the lateral lead screw is rotatably mounted on the lateral support. The lateral support is threadedly engaged with the lateral lead screw.

7. The air knife for hot-dip galvanized sheet production according to claim 6, characterized in that, The guide portion includes a guide seat and a second limiting plate. The second limiting plate is disposed at one end of the guide seat and is close to the transverse motor. A transverse channel is formed on the guide seat, and the transverse support is slidably disposed in the transverse channel.

8. The air knife for hot-dip galvanized sheet production according to claim 1, characterized in that, The cleaning component includes a cleaning blade, a cleaning bracket, a limiting block, and an auxiliary pushing block. One end of the cleaning bracket is provided with a blade fixing groove, and the cleaning blade is disposed in the blade fixing groove. The other end of the cleaning bracket is fixed to the limiting block by bolts. The auxiliary pushing block is disposed on the limiting block, and the output end of the slag removal pushing device cooperates with the auxiliary pushing block.

9. The air knife for hot-dip galvanized sheet production according to claim 6, characterized in that, The control component includes a PLC and a control panel, wherein the control panel is electrically connected to the PLC.

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