Steel coil magnesium oxide automatic spraying equipment easy to overhaul and maintain

Abstract

The invention discloses automatic steel coil magnesium oxide spraying equipment easy to overhaul and maintain, which is characterized in that the whole spraying process is carried out in a closed spraying operation space, so that safety and cleanness are ensured; the constant-temperature stirring mechanism is used for performing constant-temperature stirring on the magnesium oxide solution to ensure that the solution is in an optimal temperature range and prevent the solution from precipitating and curing; the spraying mechanism is connected with the constant-temperature stirring mechanism through a pipeline and is used for transporting the stirred magnesium oxide solution and uniformly spraying the magnesium oxide solution onto the end surface of the steel coil; the executing mechanism is arranged in the fixed cover body, connected with the spraying mechanism and used for driving the spraying mechanism to move along the end face of the steel coil; the limiting mechanism is used for limiting the moving range of the movable cover body and providing accurate positioning support for the spraying mechanism and the limiting mechanism; after spraying is completed, the sewage discharging mechanism automatically discharges waste liquid; the equipment not only can independently spray the steel coil, but also can be combined with a production line, is convenient to overhaul and maintain, and improves the spraying quality and the stability of the production process.

Description

Technical Field

[0001] The present application relates to the field of spraying devices, and in particular to an automatic magnesium oxide spraying device for steel coils which is easy to inspect and maintain. Background Art

[0002] During the annealing process, due to the uneven temperature distribution in the ring annealing furnace, stress differences are easily generated in different areas of the steel coil, which may cause plastic deformation and edge cracking of the steel coil, affecting the final product quality. In order to alleviate the above phenomenon, a magnesium oxide solution of a specific concentration is usually evenly coated on the end surface of the steel coil before annealing.

[0003] At present, the automatic spraying device of magnesium oxide coating process for steel coils cannot match the production line, which easily causes the production line to be blocked and requires a large amount of disassembly during maintenance. Therefore, the current spraying mainly relies on manual operation, which not only harms the health of operators, has high labor intensity and low production efficiency, but also makes it difficult to ensure the consistency of the coating. The splashing magnesium oxide solution during spraying can also cause harm.

[0004] In addition, the fluidity of magnesium oxide solution in the pipeline is poor, and it is easy to solidify and precipitate, causing pipeline blockage and affecting the continuity of spraying. Moreover, incomplete cleaning of the pipeline after the spraying operation will also aggravate the blockage problem. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an automatic magnesium oxide spraying device for steel coils which is easy to inspect and maintain and can be matched with different production lines to be suitable for automatic generation of steel coils with different diameters.

[0006] At the same time, the present invention performs automatic spraying operations in a closed space, effectively solving the problems of high labor intensity, low production efficiency, unstable coating quality, and hazards of solution splashing in manual coating.

[0007] Secondly, after spraying, the equipment can be thoroughly cleaned to effectively prevent the magnesium oxide solution from clogging the pipeline and ensure the continuity and stability of the spraying operation.

[0008] The technical solution adopted by the present invention is: An automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain, characterized in that it is arranged on the production line before the steel coils are annealed, and comprises: The spray hood can be opened and closed, and is mounted outside the spray mechanism to form a dustproof and closed spray working space. The spray hood is configured to be movable along the production line direction to change the range of the internal working space. The constant temperature stirring mechanism is arranged behind the spray hood and is used to stir the magnesium oxide solution at a constant temperature to ensure that the solution is within the optimal temperature range and prevent the solution from precipitating and solidifying; A spraying mechanism, connected to the constant temperature stirring mechanism through a pipeline, for transporting the stirred magnesium oxide solution and spraying it evenly onto the end surface of the steel coil; The actuator is arranged inside the spraying cover, connected to the spraying mechanism, and used to drive the spraying mechanism to move along the end surface of the steel coil; The limiting mechanism is used to limit the range of motion of the movable cover and provide precise positioning support for the spraying mechanism and the limiting mechanism.

[0009] According to the above technical solution, the steel coil production line is a steel coil conveyor line before the annealing process.

[0010] According to the above technical solution, the openable and closable spray hood includes a fixed hood and a movable hood. The movable hood is tightly fitted and sleeved on the outside of the fixed hood. A combinable movable door is provided at the front end of the movable hood. When the movable door is closed, the fixed hood, the movable hood and the movable door together constitute a dust-proof closed spraying operation space. The movable hood can also move along the length direction of the fixed hood to change the range of the internal working space.

[0011] The constant temperature stirring mechanism is arranged behind the fixed cover body.

[0012] According to the above technical solution, the movable cover is arranged on a track on a frame through a walking mechanism, and the walking mechanism includes an active walking mechanism and three auxiliary walking mechanisms, which are respectively fixedly connected to the four corners of the movable cover.

[0013] According to the above technical scheme, the active walking mechanism and the three auxiliary walking mechanisms all include wheel connecting plates fixed on opposite sides of the mobile cover, walking wheels installed between the wheel connecting plates and in contact with the upper surface of the wing plate on the track, and deep groove ball bearings installed on the wheel connecting plates through bearing shafts and in contact with the lower surface of the wing plate on the track; the active walking mechanism also includes a motor bracket fixed on the mobile cover, a motor fixed to the motor bracket through a motor mounting plate, a driving sprocket installed on the motor shaft, a driven sprocket arranged on the walking wheel, and a chain connecting the driving sprocket and the driven sprocket.

[0014] According to the above technical scheme, the constant temperature stirring mechanism includes a water tank and a telescopic cylinder installed on a water tank bracket, a stirring barrel located in the center of the water tank, a cylinder connecting plate fixed on the top of the telescopic cylinder, and a motor support plate connected to the gas rod in the telescopic cylinder. The proximal end of the motor support plate is fixedly connected to a limit guide rod that passes through the cylinder connecting plate, and the distal end is fixed with a motor. A stirring blade is connected to the bottom of the motor through a transmission shaft. The gas rod of the telescopic cylinder can drive the motor support plate to move along the limit guide rod, so that the stirring blade moves upward out of the stirring barrel. A water inlet and a water outlet are provided on the water tank, which is connected to the water cooler through a liquid pipeline to form a closed temperature regulation loop.

[0015] According to the above technical scheme, the spraying mechanism includes an air storage tank connected to the air inlet of the factory, a pressure regulating valve, a diaphragm pump, a spray gun and multiple solenoid valves. The air storage tank is connected to the pressure regulating valve and the stirring barrel, the pressure regulating valve and the stirring barrel are respectively connected to the air inlet and liquid inlet of the diaphragm pump, and the spray gun is connected to the liquid outlet of the diaphragm pump and the pressure regulating valve; solenoid valves are provided between the pressure regulating valve and the air inlet of the diaphragm pump, and between the spray gun and the pressure regulating valve, and a three-way solenoid valve is provided between the stirring barrel and the liquid inlet of the diaphragm pump, and the three-way solenoid valve is also connected to the water inlet of the factory.

[0016] According to the above technical scheme, the actuator includes a first slide module, a second slide module, a third slide module, a movable bracket, a rotating platform connecting plate, a hollow rotating platform and a rotating bracket; the first slide module is fixed on the frame, and a movable bracket is fixed on its first slider, and the second slide module is installed on the movable bracket, and a hollow rotating platform is fixed on its second slider through a rotating platform connecting plate, and a rotating bracket is installed on the hollow rotating platform, and the rotating bracket is installed on the third slide module, and the spray gun rod is fixed on its third slider.

[0017] According to the above technical scheme, the limiting mechanism includes an infrared sensor, an inductive sensor and a physical limiting part; the infrared sensor is arranged on the upper and lower sides of the rotating platform connecting plate in the actuator; the inductive sensor is respectively installed at the two ends of the track, the first slide module, the second slide module, the third slide module and the entire front of the rotating platform connecting plate; the physical limiting part is arranged at the end of the track.

[0018] According to the above technical solution, a sewage discharge mechanism is provided in the closed spraying operation space, and the sewage discharge mechanism includes a waste barrel, and the waste barrel is connected to a water pump through a sewage discharge pipe, so that waste liquid can be discharged in time after spraying is completed.

[0019] According to the above technical scheme, a manual teaching mechanism is provided on the spray hood, especially the fixed hood, including a visual window and a manual operating console, which is connected to the walking mechanism, stirring mechanism, actuator, spraying mechanism, limiting mechanism and sewage discharge mechanism, and can be semi-automatically operated under manual intervention.

[0020] According to the above technical solution, the frame is also provided with a saddle for fixing the steel coil, a guardrail, an electrical component platform and a control cabinet assembly.

[0021] The beneficial effects achieved by the present invention are: 1. The functions of this spraying equipment are very comprehensive, covering every link from raw material mixing, transportation, spraying to waste collection, pipeline cleaning, etc. By integrating automation and semi-automation operations, the efficiency and uniformity of magnesium oxide solution spraying on the end surface of steel coils are improved, the production process is optimized, and the consistency and reliability of product quality are ensured. The fixed cover, movable cover and movable door form a closed working space to prevent the magnesium oxide solution from splashing during the spraying process, reduce the impact on surrounding parts, and improve the safety and cleanliness of the spraying operation. A constant temperature water tank is designed outside the mixing barrel to keep the magnesium oxide solution within the optimal temperature range, ensure the fluidity and uniformity of the magnesium oxide solution during the spraying process, prevent pipeline blockage caused by solution solidification, and ensure the continuity and stability of the spraying operation.

[0022] 2. During the spraying process, the actuator and limit mechanism can accurately locate the position of the spray gun to ensure that the spray gun covers the entire end surface of the steel coil and ensure the consistency of the coating; after the spraying is completed, the diaphragm pump will squeeze out clean water to clean the pipes and spray guns, remove the residual magnesium oxide solution, use a waste barrel to collect the waste liquid, and then use a water pump to discharge the waste liquid in time to prevent the accumulation and solidification of sediment in the pipes and spray guns, thereby reducing the maintenance workload.

[0023] 3. This spraying equipment can spray steel coils independently or be combined with a steel coil production line. Therefore, even during the maintenance of the spraying equipment, the production line can maintain normal operation, which is convenient for inspection and maintenance, and effectively avoids shutdowns caused by equipment maintenance.

[0024] 4. The teaching mechanism can monitor the operation of the equipment, which helps to observe and optimize the performance of the equipment in real time. Ample space is reserved for future functional expansion and upgrading, which can adapt to future production needs and development. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall layout diagram of an automatic magnesium oxide spraying device for steel coils which is easy to inspect and maintain provided by the present invention; Figure 2 A schematic diagram of a manual teaching mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Figure 3 A schematic diagram of a stirring mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Figure 4 A schematic diagram of a constant temperature mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Figure 5 A schematic diagram of a traveling mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Figure 6A schematic diagram of an active travel mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Figure 7 A schematic diagram of an auxiliary walking mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Figure 8 A schematic diagram of an actuator of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Fig. 9 A schematic diagram of a limiting mechanism of an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Fig.10 A flow chart of an anti-clogging mechanism for an automatic magnesium oxide spraying device for steel coils that is easy to inspect and maintain provided by the present invention; Fig.11 A process flow chart of an automatic magnesium oxide spraying device for steel coils which is easy to inspect and maintain provided by the present invention; In the figure: 1, I-beam rail; 2, gas tank; 3, constant temperature stirring mechanism; 3-1, water tank bracket; 3-2, water tank water inlet; 3-3, water tank; 3-4, latch; 3-5, stirring barrel; 3-6, motor; 3-7, motor support plate; 3-8, transmission shaft; 3-9, cylinder connecting plate; 3-10, limit guide rod; 3-11, telescopic cylinder; 3-12, water tank water outlet; 3-13, stirring blade; 4, actuator; 4-1, first slide module; 4-2 , first slider; 4-3, mobile bracket; 4-4, third slide module; 4-5, third slider; 4-6, spray gun rod; 4-7, rotating platform connecting plate; 4-8, second slider; 4-9, second slide module; 4-10, hollow rotating platform; 4-11, rotating bracket; 5, spraying mechanism; 5-1, spray gun; 6, waste barrel; 7, saddle; 8, walking mechanism; 8-1, walking wheel; 8-2, driven sprocket; 8-3, wheel connecting plate; 8-4, chain; 8 -5, motor bracket; 8-6, motor mounting plate; 8-7, motor; 8-8, driving sprocket; 8-9, bearing shaft; 8-10, deep groove ball bearing; 8-11, active walking mechanism; 8-12, auxiliary walking mechanism; 9, limit mechanism; 9-1, first inductive sensor; 9-2, second inductive sensor; 9-3, third inductive sensor; 9-4, fourth inductive sensor; 9-5, fifth inductive sensor; 9-6, sixth inductive sensor; 9- 7. Seventh inductive sensor; 9-8. Eighth inductive sensor; 9-9. Ninth inductive sensor; 9-10. Infrared sensor; 9-11. Inductive sensor bracket; 9-12. Physical limiter; 10. Guardrail; 11. Electric rolling door; 12. Steel coil; 13. Movable cover; 14. Fixed cover; 15. Visual window; 16. Manual operating console; 17. Electrical component platform; 18. Control cabinet assembly; 19. Water cooler; 20. Rack; 21. Pipeline. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] The features and performance of the spraying equipment of the present application are further described in detail below in conjunction with the embodiments.

[0028] The embodiment of the present application provides an automatic magnesium oxide spraying equipment for steel coils 12 that is easy to inspect and maintain, including a fixed cover body 14 and a movable cover body 13. The movable cover body 13 is tightly fitted and sleeved on the outer side of the fixed cover body 14. A combinable movable door is provided at the front end of the movable cover body 13. When the movable door is closed, the fixed cover body 14, the movable cover body 13 and the movable door together constitute a dust-proof closed spraying operation space. The movable cover body 13 can also move along the length direction of the fixed cover body 14 to change the range of the internal working space. The constant temperature stirring mechanism 3 is arranged behind the fixed cover 14, and is used to stir the magnesium oxide solution at a constant temperature to ensure that the solution is within the optimal temperature range and prevent the solution from precipitating and solidifying; the spraying mechanism 5 is connected to the constant temperature stirring mechanism 3 through a pipeline 21, and is used to transport the stirred magnesium oxide solution and spray it evenly onto the end face of the steel coil 12; the actuator 4 is arranged inside the fixed cover 14, and is connected to the spraying mechanism 5, and is used to drive the spraying mechanism 5 to move along the end face of the steel coil 12; the limiting mechanism 9 is used to limit the range of movement of the movable cover 13 and provide precise positioning support for the spraying mechanism 5 and the limiting mechanism 9. After the spraying is completed, the sewage discharge mechanism automatically discharges the waste liquid; this equipment can spray the steel coil 12 independently, and can also be combined with the production line, which is convenient for inspection and maintenance, and improves the quality of spraying and the stability of the production process.

[0029] In this embodiment, Figure 1 As shown, the entire spraying equipment is integrated on the frame 20, and the fixed cover body 14 is a square box structure, which is fixedly installed on the frame 20; the movable cover body 13 is similar in shape to the fixed cover body 14, and is tightly fitted and sleeved on the outer side of the fixed cover body 14. A combinable movable door is provided at the front end of the movable cover body 13, and the movable door is specifically an electric rolling door 11; when the electric rolling door 11 is lowered, the fixed cover body 14, the movable cover body 13 and the electric rolling door 11 together constitute a dust-proof closed spraying operation space; the movable cover body 13 also has a movable function, and can move along the length direction of the fixed cover body 14 to change the range of the internal spraying operation space; during the spraying process, the closed spraying operation space can not only isolate the dust in the air to prevent the dust from affecting the spraying quality, but also avoid the impact of the splash of magnesium oxide solution on other components, thereby reducing the maintenance requirements.

[0030] In this embodiment, Figure 5 As shown, two parallel tracks are provided on the frame 20, and the track is specifically an I-beam track 1, which is fixed to the frame 20 through a pressure plate; the movable cover body 13 is arranged on the I-beam track 1, and the movement of the movable cover body 13 is realized by a walking mechanism 8; the walking mechanism 8 includes an active walking mechanism 8-11 and three auxiliary walking mechanisms 8-12, which are respectively fixed at the four corners of the movable cover body 13.

[0031] In this embodiment, Figure 6 , Figure 7 As shown, the active walking mechanism 8-11 and the three auxiliary walking mechanisms 8-12 all include a wheel connecting plate 8-3, a walking wheel 8-1, a bearing shaft 8-9 and a deep groove ball bearing 8-10. The wheel connecting plates 8-3 are relatively arranged and fixed on both sides of the movable cover 13 by hexagonal bolts. The walking wheel 8-1 is installed between the wheel connecting plates 8-3 and contacts the upper surface of the upper wing plate of the I-beam track 1. The deep groove ball bearing 8-10 is installed on the wheel connecting plate 8-3 through the bearing shaft 8-9 and contacts the lower surface of the upper wing plate of the I-beam track 1; the walking wheel 8-1 and the deep groove ball bearing 8-10 clamp the upper wing plate of the I-beam track 1 from the top and bottom respectively, reduce friction and maintain the stable operation of the walking wheel 8-1, and can prevent the walking mechanism 8 from overturning. The active walking mechanism 8-11 also includes a motor bracket 8-5, a motor mounting plate 8-6, a motor 8-7, a driving sprocket 8-8, a driven sprocket 8-2 and a chain 8-4; the motor bracket 8-5 is fixed to the movable cover 13 by hexagonal bolts, the motor mounting plate 8-6 is fixed to the motor bracket 8-5 by hexagonal bolts, and the motor 8-7 is installed on the motor mounting plate 8-6; the driving sprocket 8-8 is installed on the shaft of the motor 8-7, and the driven wheel sprocket is installed on the walking wheel 8-1, and the driving sprocket 8-8 and the driven sprocket 8-2 are meshed with a chain 8-4, which can transmit power and drive the movable cover 13 to slide on the I-beam track 1.

[0032] In this embodiment, Figure 3As shown, the constant temperature stirring mechanism 3 includes a water tank bracket 3-1, a water tank 3-3, a telescopic cylinder 3-11, a stirring barrel 3-5, a cylinder connecting plate 3-9 and a motor supporting plate 3-7. The water tank 3-3 and the telescopic cylinder 3-11 are fixed on the water tank bracket 3-1. The stirring barrel 3-5 is placed in the center of the water tank 3-3 and is firmly connected to the water tank 3-3 through two latches 3-4. The top of the cylinder body of the telescopic cylinder 3-11 is fixed with a cylinder connecting plate 3-9 by a hexagon socket bolt. The gas rod of the telescopic cylinder 3-11 passes through the cylinder connecting plate 3-9 and can move along the cylinder body. The top of the gas rod is connected to the cylinder connecting plate 3-9. It is fixedly connected to the motor support plate 3-7 through hexagonal bolts, and the proximal end of the motor support plate 3-7 is fixed with a limiting guide rod 3-10 through a hexagonal bolt. The proximal end of the motor support plate 3-7 is fixed with a limiting guide rod 3-10 passing through the cylinder connecting plate 3-9 through a hexagonal bolt. The limiting guide rod 3-10 passes through the cylinder connecting plate 3-9. The distal end of the motor support plate 3-7 is located above the mixing barrel 3-5, and a motor 3-6 is fixed thereon through a hexagonal bolt. A transmission shaft 3-8 that penetrates into the mixing barrel 3-5 is connected below the motor 3-6, and a mixing blade 3-13 is installed at the bottom of the transmission shaft 3-8. The motor 3-6 can drive the transmission shaft 3-8 to rotate the stirring blade 3-13, and stir the magnesium oxide solution in the stirring barrel 3-5 evenly. When the spraying is completed, the gas rod of the telescopic cylinder 3-11 drives the motor support plate 3-7 to move along the limiting guide rod 3-10, so that the stirring blade 3-13 moves upward out of the stirring barrel 3-5, so as to facilitate the thorough cleaning of the stirring barrel 3-5.

[0033] In this embodiment, Figure 4 As shown, the water tank 3-3 is provided with a water tank inlet 3-2 and a water tank outlet 3-12, and the water tank inlet 3-2 and the water tank outlet 3-12 are connected to the water cooler 19 through a liquid pipeline 21 to form a closed temperature regulation loop, which can ensure that the magnesium oxide solution in the mixing barrel 3-5 is within the optimal temperature range, prevent the magnesium oxide solution from precipitating and solidifying before spraying, thereby ensuring the uniformity and continuity of the spraying process.

[0034] In this embodiment, Fig.10As shown, the spraying mechanism 5 includes an air tank 2 connected to the air inlet of the factory, a pressure regulating valve, a diaphragm pump, a spray gun 5-1 and multiple solenoid valves, the air tank 2 is connected to the pressure regulating valve and the stirring barrel 3-5, the pressure regulating valve and the stirring barrel 3-5 are respectively connected to the air inlet and liquid inlet of the diaphragm pump, the spray gun 5-1 is connected to the liquid outlet of the diaphragm pump and the pressure regulating valve; solenoid valves are provided between the pressure regulating valve and the air inlet of the diaphragm pump, and between the spray gun 5-1 and the pressure regulating valve, a three-way solenoid valve is provided between the stirring barrel 3-5 and the liquid inlet of the diaphragm pump, the three-way solenoid valve is also connected to the water inlet of the factory, and the air tank 2 is connected to the air inlet of the factory. During spraying, the gas storage tank 2 provides stable compressed air to the diaphragm pump through the pressure regulating valve to ensure that the diaphragm pump works at the optimal pressure. The liquid inlet of the diaphragm pump sucks the magnesium oxide solution and transports it to the spray gun 5-1 with the help of the power of compressed air, so that the magnesium oxide solution can be sprayed out stably and evenly; after the spraying is completed, the three-way solenoid valve controlling the mixing barrel 3-5 to transport the magnesium oxide solution is closed, the water inlet of the plant area is opened, and the diaphragm pump is used to press out clean water to clean the pipeline 21 and the spray gun 5-1, so as to remove the residual magnesium oxide solution in the pipeline 21 and prevent the pipeline 21 and the spray gun 5-1 from being blocked, thereby reducing the maintenance workload and ensuring the long-term stable operation of the spraying equipment.

[0035] In this embodiment, Figure 8 As shown, the actuator 4 includes a first slide module 4-1, a second slide module 4-9, a third slide module 4-4, a movable bracket 4-3, a rotating platform connecting plate 4-7, a hollow rotating platform 4-10 and a rotating bracket 4-11; the first slide module 4-1 is fixed on the frame 20, and the movable bracket 4-3 is installed on the first slider 4-2 thereon by means of hexagon socket bolts; the second slide module 4-9 is installed on the movable bracket 4-3 by means of hexagon socket bolts, and the rotating platform connecting plate 4-7 is installed on the second slider 4-8 thereon by means of hexagon socket bolts, the hollow rotating platform 4-10 is installed on the rotating platform connecting plate 4-7 by means of hexagon socket bolts, and the rotating bracket 4-11 is installed on the output end of the hollow rotating platform 4-10; the third slide module 4-4 is installed on the rotating bracket 4-11, and the spray gun rod 4-6 is installed on the third slider 4-5 thereon by means of hexagon socket bolts, and the spray gun 5-1 is fixed on the spray gun rod 4-6. The first slide module 4-1, the second slide module 4-9 and the third slide module 4-4 work together to accurately control the position of the spray gun 5-1 in three-dimensional space through the sliding of the first slider 4-2, the second slider 4-8 and the third slider 4-5. At the same time, the rotational movement of the spray gun 5-1 is controlled by the hollow rotating platform 4-10, so that the spraying range of the spray gun 5-1 can cover the entire end face of the steel coil 12; the actuator 4 simplifies the solution of the motion trajectory of the spray gun 5-1, making the motion control simpler and more direct, and easy to achieve high-precision positioning, which not only improves the flexibility and accuracy of the spraying operation, but also enhances the adaptability and reliability of the equipment, and facilitates maintenance and adjustment.

[0036] In this embodiment, Figure 6 , 7 , 9, the limiting mechanism 9 includes an infrared sensor 9-10, an inductive sensor and a physical limiting member 9-12; the upper and lower ends of the rotating platform connecting plate 4-7 in the actuator 4 are respectively installed with infrared sensors 9-10, which can measure the diameter of the steel coil 12 and adapt to steel coils 12 of different sizes; a ninth inductive sensor 9-9 is installed in front of the rotating platform connecting plate 4-7, which cooperates with the inductive metal sheet on the rotating bracket 4-11 to accurately control the number of spraying circles of the spray gun 5-1 to ensure the uniformity of spraying; the first inductive sensor 9-1 and the second inductive sensor 9-2 are respectively connected to the inductive sensor bracket 9-11. Installed at the ends of two I-beam rails 1, it can monitor the position of the walking mechanism 8. At the same time, physical limiters 9-12 are set at the ends of the two I-beam rails 1 to limit the extreme movement range of the walking mechanism 8; the third to eighth inductive sensors (9-3, 9-4, 9-5, 9-6, 9-7, 9-8) are installed at both ends of the first slide module 4-1, the second slide module 4-9 and the third slide module 4-4, respectively. The first slide 4-2, the second slide 4-8 and the third slide 4-5 are respectively installed with metal induction sheets, which can provide a comprehensive positioning system, automatically adjust the position of the actuator 4, and improve the accuracy of the spraying operation; In this embodiment, the sewage discharge mechanism includes a waste barrel 6 and a water pump. The waste barrel 6 is located in front of the actuator 4 to facilitate the collection of waste. The water pump is connected to the waste barrel 6 through a sewage pipe 21. After the spraying operation is completed, the spraying mechanism 5 is controlled to spray clean water to clean the pipe 21 and the spray gun 5-1. The waste liquid is directly sprayed into the waste barrel 6 and is automatically discharged from the sewage pipe 21 through the water pump, ensuring a clean spraying environment, simple equipment maintenance, and long-term stable operation of the equipment.

[0037] In this embodiment, Figure 2 As shown, the manual teaching mechanism is arranged on the rear wall of the fixed cover body 14, including a visual window 15 and a manual operating console 16, and is connected to the walking mechanism 8, the constant temperature stirring mechanism 3, the actuator 4, the spraying mechanism 5, the limiting mechanism 9 and the sewage discharge mechanism; the manual teaching mechanism provides an intuitive interface for the operator, so that the operator can set parameters and control the equipment in the manual mode, and can record and reproduce the operation path, thereby improving the working efficiency; the manual teaching mechanism not only improves the flexibility of operation, but also enhances the emergency handling capability of the equipment in the automation process.

[0038] In this embodiment, the frame 20 is also provided with a saddle 7, a guardrail 10, an electrical component platform 17, a control cabinet assembly 18 and other components that cooperate with other mechanisms to complete the spraying work. The saddle 7 is fixed on the frame 20 to place and fix the steel coil 12 to prevent it from moving during spraying. The guardrail 10 is used to protect the operating area and improve the safety of equipment operation.

[0039] In this embodiment, Fig.11 As shown, the basic process of spraying of this device is as follows: at the beginning, the spraying device is in standby mode, the manual pneumatic button is turned on and the steel coil 12 is automatically checked to see if it is in place, the electric shutter door 11 is closed after 3-5 minutes, the constant temperature stirring mechanism 3 stirs the magnesium oxide solution evenly, the actuator 4 controls the spray gun 5-1 to start to the starting position, the pneumatic three-way solenoid valve and the diaphragm pump are turned on, the limit mechanism 9 controls the spray gun 5-1 to spray the magnesium oxide solution evenly onto the entire end surface of the steel coil 12, after the spraying is completed, the spray gun 5-1 is moved to the waste barrel 6, the diaphragm pump presses out clean water to clean the pipeline 21 and the spray gun 5-1, the sewage discharge mechanism automatically discharges the waste liquid, the electric shutter door 11 is opened to complete the spraying, and the device returns to the standby mode to wait for the next spraying.

[0040] The spraying equipment is integrated on the frame 20, and can not only independently spray a single steel coil 12, but also can be flexibly moved to the end of the steel coil 12 production line and integrated with the production line; when integrated with the production line, the spraying equipment can automatically adjust the spraying rhythm to ensure that the spraying process is carried out synchronously with the production line, thereby improving production efficiency; in addition, when the spraying equipment needs maintenance or fails, the steel coil 12 production line can still continue to maintain normal operation, avoiding the risk of shutdown caused by traditional fixed spraying equipment during maintenance; the movable design of the spraying equipment also enables maintenance personnel to inspect and maintain the equipment more conveniently, shortening the time for troubleshooting and ensuring efficient and stable operation of the production line.

[0041] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. An automatic magnesium oxide spraying equipment for steel coils that is easy to inspect and maintain, characterized in that Installed on the production line before the steel coil annealing, including: The spray hood can be opened and closed, and is mounted outside the spray mechanism to form a dustproof and closed spray working space. The spray hood is configured to be movable along the assembly line direction to change the range of the internal working space. The constant temperature stirring mechanism is arranged behind the spray hood and is used to stir the magnesium oxide solution at a constant temperature to ensure that the solution is within the optimal temperature range and prevent the solution from precipitating and solidifying; A spraying mechanism, connected to the constant temperature stirring mechanism through a pipeline, for transporting the stirred magnesium oxide solution and spraying it evenly onto the end surface of the steel coil; The actuator is arranged inside the spraying cover, connected to the spraying mechanism, and used to drive the spraying mechanism to move along the end surface of the steel coil; The limiting mechanism is used to limit the range of motion of the movable cover and provide precise positioning support for the spraying mechanism and the limiting mechanism.

2. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 is characterized in that: The openable and closable spray hood includes a fixed hood and a movable hood. The movable hood fits tightly and is sleeved on the outside of the fixed hood. A combinable movable door is provided at the front end of the movable hood. When the movable door is closed, the fixed hood, the movable hood and the movable door together constitute a dust-proof closed spray working space. The movable hood can also move along the length direction of the fixed hood to change the range of the internal working space.

3. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 is characterized in that: The mobile cover is arranged on a track on the frame through a walking mechanism, wherein the walking mechanism includes an active walking mechanism and three auxiliary walking mechanisms, which are respectively fixedly connected to the four corners of the mobile cover; The active walking mechanism and the three auxiliary walking mechanisms each include wheel connecting plates fixed on opposite sides of the moving cover, walking wheels installed between the wheel connecting plates and in contact with the upper surface of the wing plate on the track, and deep groove ball bearings installed on the wheel connecting plates through bearing shafts and in contact with the lower surface of the wing plate on the track; the active walking mechanism also includes a motor bracket fixed on the moving cover, a motor fixed to the motor bracket through a motor mounting plate, a driving sprocket installed on the motor shaft, a driven sprocket arranged on the walking wheel, and a chain connecting the driving sprocket and the driven sprocket.

4. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 is characterized in that: The constant temperature stirring mechanism includes a water tank and a telescopic cylinder installed on a water tank bracket, a stirring barrel located in the center of the water tank, a cylinder connecting plate fixed on the top of the telescopic cylinder, and a motor support plate connected to the gas rod in the telescopic cylinder. The proximal end of the motor support plate is fixedly connected to a limit guide rod that penetrates the cylinder connecting plate, and the distal end is fixed to a motor. A stirring blade is connected to the lower part of the motor through a transmission shaft. The gas rod of the telescopic cylinder can drive the motor support plate to move along the limit guide rod, so that the stirring blade moves upward out of the stirring barrel. A water inlet and a water outlet are provided on the water tank, which is connected to a water cooler through a liquid pipeline to form a closed temperature regulation loop.

5. The magnesium oxide automatic spraying equipment for steel coils that is easy to inspect and maintain according to claim 1 or 4, characterized in that: The spraying mechanism includes an air tank connected to the air inlet of the factory, a pressure regulating valve, a diaphragm pump, a spray gun and multiple solenoid valves. The air tank is connected to the pressure regulating valve and a stirring barrel. The pressure regulating valve and the stirring barrel are respectively connected to the air inlet and liquid inlet of the diaphragm pump. The spray gun is connected to the liquid outlet of the diaphragm pump and the pressure regulating valve. Solenoid valves are provided between the pressure regulating valve and the air inlet of the diaphragm pump, and between the spray gun and the pressure regulating valve. A three-way solenoid valve is provided between the stirring barrel and the liquid inlet of the diaphragm pump. The three-way solenoid valve is also connected to the water inlet of the factory.

6. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 is characterized in that: The actuator includes a first slide module, a second slide module, a third slide module, a movable bracket, a rotating platform connecting plate, a hollow rotating platform and a rotating bracket; the first slide module is fixed on the frame, and the movable bracket is fixed on the first slide block, the second slide module is installed on the movable bracket, the hollow rotating platform is fixed on the second slide block through the rotating platform connecting plate, the rotating bracket is installed on the hollow rotating platform, the rotating bracket is installed on the third slide module, and the spray gun rod is fixed on the third slide block.

7. The magnesium oxide automatic spraying equipment for steel coils that is easy to inspect and maintain according to claim 1, 2 or 6, characterized in that: The limiting mechanism includes an infrared sensor, an inductive sensor and a physical limiting part; the infrared sensor is arranged on the upper and lower sides of the rotating platform connecting plate in the actuator; the inductive sensor is respectively installed at the two ends of the track, the first slide module, the second slide module, the third slide module and the entire front of the rotating platform connecting plate; the physical limiting part is arranged at the end of the track.

8. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 is characterized by: A sewage discharge mechanism is provided in the spraying operation space, and the sewage discharge mechanism includes a waste barrel, and the waste barrel is connected to a water pump through a sewage discharge pipe, so that waste liquid can be discharged in time after spraying is completed.

9. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 is characterized in that: The spray hood is provided with a manual teaching mechanism, including a visual window and a manual operating console, which is connected with a walking mechanism, a stirring mechanism, an actuator, a spraying mechanism, a limiting mechanism and a sewage discharge mechanism, and can be semi-automatically operated under manual intervention.

10. The easy-to-repair and maintain steel coil magnesium oxide automatic spraying equipment according to claim 1 or 2, characterized in that: The frame is also provided with a saddle for fixing the steel coil, a guardrail, an electrical component platform and a control cabinet assembly.

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