Rotary disc type structure steel bottle hanging curing furnace and curing process

Abstract

The application discloses a rotary table type structure steel bottle hoisting curing furnace, which comprises a furnace body, one side of the furnace body is provided with a furnace door, and the inner wall of the furnace body is provided with a heat preservation lining; the rotary table type structure steel bottle hoisting curing furnace further comprises a rotary table type hoisting assembly, which is arranged in the interior of the furnace body. The application relates to the technical field of high-pressure steel gas cylinder processing and heat treatment, and through cooperation between the furnace body, the furnace door, the heat preservation lining, the rotary table type hoisting assembly and the feeding and discharging assembly, a rotary table type hoisting structure is arranged in the interior of the furnace body, a plurality of steel bottles are hoisted and fixed, the side wall of the steel bottle is not in contact with other components, large-area coating damage of the side wall of the steel bottle is avoided, all the steel bottles are driven to rotate around the center during the curing process, uniform heating effect of each steel bottle is ensured, the consistency of the steel bottle coating curing is ensured, meanwhile, the feeding and discharging operation can be automatically completed, manual operation is not needed, the safety and the production efficiency of the operation are effectively improved, and the steel bottle coating curing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of heat treatment technology for high-pressure steel gas cylinders, specifically to a rotary structure steel cylinder curing furnace and curing process. Background Technology

[0002] Gas cylinders are steel pressure vessels specifically designed for storing high-pressure oxygen, coal gas, liquefied petroleum gas, and other media. They are widely used in various scenarios, including industrial production, laboratories, medical facilities, and gas supply. After the steel cylinders are formed and processed, an anti-corrosion and anti-rust coating is sprayed onto the inner and outer walls of the cylinder. This coating is then cured at high temperatures to ensure it adheres tightly to the surface of the steel cylinder. This process enhances the cylinder's corrosion resistance and weather resistance, extends its service life, and ensures the safety of the cylinder when it is filled with flammable, explosive, or high-pressure gases for extended periods.

[0003] In existing technologies, traditional steel cylinder curing processes often employ batch static baking in trolley-type curing ovens. Multiple steel cylinders are placed horizontally on trolleys inside the oven for heating and curing. When the cylinders are placed horizontally, the supports are in contact with the outer wall of the cylinders, which can easily lead to uneven coating thickness at the support points. After curing, local coating peeling and anti-corrosion failure are very likely to occur. Furthermore, when the cylinders are stacked for curing, some areas are heated unevenly, resulting in inconsistent coating curing levels and affecting the final curing effect. At the same time, the loading and unloading of steel cylinders into the oven is mostly done manually, which results in low production efficiency, high labor intensity, and significant safety hazards. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a rotary structure steel cylinder curing furnace and curing process. This solves the problems of existing technologies where multiple steel cylinders are horizontally placed on a furnace trolley for heating and curing, resulting in uneven coating thickness at the support points due to contact between the support and the outer wall of the cylinders. Uneven heating in some areas leads to localized coating peeling and corrosion failure after curing, affecting the final curing effect. Furthermore, the loading and unloading of steel cylinders into the furnace often requires manual operation, resulting in low production efficiency, high labor intensity, and significant safety hazards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary structure steel cylinder curing furnace, comprising a furnace body, a furnace door on one side of the furnace body, and an insulating lining on the inner wall of the furnace body. The rotary structure steel cylinder curing furnace also includes a rotary hoisting assembly, which is located inside the furnace body. A loading and unloading assembly is located outside the furnace body near the furnace door. The rotary hoisting assembly suspends multiple steel cylinders vertically and rotates them around the center of the furnace body, ensuring uniform heating of each cylinder. The loading and unloading assembly feeds the steel cylinders to be cured into the furnace for hoisting, and simultaneously removes the cured steel cylinders from the furnace.

[0006] Preferably, the rotary hoisting assembly includes a rotating shaft rotatably mounted at the center of the furnace cavity; a first servo motor fixedly connected to the top of the outer wall of the furnace body, with its output end connected to the top of the rotating shaft; a hoisting plate fixedly connected to the top of the outer wall of the rotating shaft; first hoisting slots equidistantly located on the top of the outer wall of the hoisting plate; a hoisting inlet located on the outer wall of the hoisting plate on the side away from the rotating shaft from the first hoisting slot; a support plate fixedly connected to the outer wall of the rotating shaft below the hoisting plate; and bottom support slots equidistantly located on the top of the support plate, corresponding one-to-one with the first hoisting slots. The bottom support slots are equipped with annular protrusions to support the gas cylinders. The hoisting rod at the top of the gas cylinder is inserted into the first hoisting slot, and the bottom of the gas cylinder extends into the bottom support slot, thus achieving the hoisting and placement of the gas cylinder. The first servo motor drives the rotating shaft to rotate, thereby causing the hoisting plate and support plate to adjust their angles or rotate, so as to place or remove the gas cylinder and ensure uniform heating.

[0007] Preferably, an angle control component is provided at the bottom of the rotating shaft. The angle control component includes a grating disk, which is fixedly connected to the outer wall of the rotating shaft and located below the support disk. Positioning holes are equidistantly opened on the outer wall of the grating disk, and each positioning hole corresponds to the first hoisting slot above in the circumferential direction. A first through-beam photoelectric sensor is provided on one side of the grating disk. The positioning hole on the grating disk corresponds to the cylinder hoisting position. When the first through-beam photoelectric sensor detects that the positioning hole has passed, it can send a positioning signal to stop the first servo motor from rotating. The rotating shaft then stops rotating and aligns the hoisting position corresponding to the positioning hole with the furnace door.

[0008] Preferably, the loading and unloading assembly includes a material conveying platform located on the outside of the furnace body near the furnace door; a loading and unloading robot is mounted on the platform of the material conveying platform near the furnace door; a hoisting and clamping assembly is located at the output end of the loading and unloading robot; a material conveying assembly is located on the top of the material conveying platform; and a position sensing assembly is located at one end of the material conveying assembly. The loading and unloading robot uses the hoisting and clamping assembly to hoist and clamp the cylinders and performs loading and unloading operations into the furnace. The material conveying assembly transports the cylinders to be cured and those that have been cured. The position sensing assembly detects the position of the cylinder after it has been transported to its designated location.

[0009] Preferably, the lifting and clamping assembly includes a lifting frame, which is fixedly connected to the output end of the loading and unloading robot; two clamping plates are provided, which are rotatably connected to the two sides of the bottom surface of the lifting frame; a double-rod hydraulic cylinder is installed on the outer wall of the lifting frame, and its output end is rotatably connected to the clamping plate; a second lifting slot is provided at the top of the lifting frame; and a pad is fixedly connected to the outer wall of the lifting frame; wherein, the loading and unloading robot controls the angle of the lifting frame, and clamps the cylinder by controlling the double-rod hydraulic cylinder, and inserts the lifting rod at the top of the cylinder laterally into the second lifting slot, which is used to adjust the cylinder from a horizontal posture to a vertical posture, thereby realizing the lifting and clamping of the cylinder.

[0010] Preferably, the material conveying assembly includes two conveyor lines, which are fixedly connected to the top of the material conveying platform; an arc-shaped roller is equidistantly rotatably connected to the inner side of the conveyor line; and a second servo motor is fixedly connected to one side of the outer wall of the conveyor line. The second servo motor drives the arc-shaped roller of the conveyor line to rotate through a sprocket and a chain, thereby conveying the steel cylinders to be cured and those that have been cured.

[0011] Preferably, the position sensing component includes a limiting baffle, which is fixedly connected to the end of the conveyor line; two sets of second through-beam photoelectric sensors are provided, distributed on both sides of the end of the conveyor line; wherein, after the cylinder is conveyed or placed in the designated position, when the second through-beam photoelectric sensor detects that the cylinder is in place, it sends a signal to the control system so that the loading and unloading robot can pick up the cylinder to be solidified, or convey the solidified cylinder to the subsequent process.

[0012] Preferably, a temperature and pressure control assembly is provided on one side of the furnace body. The temperature and pressure control assembly includes multiple circulating fans, which are installed on the top of the inner wall of the furnace body and are equidistantly distributed on the outside of the rotating shaft. Multiple air ducts are provided, vertically distributed inside the furnace body, and their top ends are connected to the output end of the circulating fans. A sheathed temperature sensor is fixedly connected to the outer wall of the furnace body, and its sensing end penetrates through the furnace body and the insulation lining. A sheathed pressure sensor is fixedly connected to the outer wall of the furnace body, and its sensing end penetrates through the furnace body and the insulation lining. A pressure relief valve is located on the top of the outer wall of the furnace body and is connected to the inside of the furnace body. The circulating fans deliver hot air vertically downward along the inner wall of the furnace body through the air ducts. The hot air circulates inside the furnace body to uniformly heat the gas cylinder. The sheathed temperature sensor and the sheathed pressure sensor detect the temperature and pressure data inside the furnace in real time. When the pressure inside the furnace exceeds the safety threshold, the pressure relief valve automatically opens to release pressure and ensure the safe operation of the furnace body.

[0013] This invention also provides a rotary structure for curing steel cylinders, comprising the following steps: S1. Start the circulating fan and heating system. The armored temperature sensor and armored pressure sensor collect the temperature and pressure data in the furnace in real time. Preheat the curing main cavity to 120-140°C and turn on the exhaust system to maintain a slight negative pressure in the curing furnace, waiting for the steel cylinder to be hoisted in. S2. The steel cylinder to be cured is placed on the top of the arc roller of the conveyor line for conveying. After being conveyed to the designated position, the second through-beam photoelectric sensor detects that the steel cylinder is in place and sends an arrival signal to the control system. The control system controls the second servo motor to stop the conveyor line and controls the loading and unloading robot to move the hoisting and clamping assembly above the steel cylinder. The double-rod hydraulic cylinder drives the two clamping plates to clamp the steel cylinder and inserts the hoisting rod at the top of the steel cylinder into the second hoisting slot. The horizontally placed steel cylinder is lifted upward and the angle is adjusted. Then the furnace door is opened and the steel cylinder is sent into the furnace. The hoisting rod at the top of the steel cylinder is aligned with the first hoisting slot of the corresponding hoisting position and placed in. After the steel cylinder is adjusted to a vertical position, the bottom of the steel cylinder is inserted into the corresponding bottom support slot to complete the loading of a single steel cylinder. S3. The control system automatically controls the first servo motor to drive the rotating shaft and the lifting plate to rotate. When the first through-beam photoelectric sensor detects that the positioning hole corresponding to the next empty lifting position has passed, it sends a position signal to stop the first servo motor from rotating and lifts the steel cylinder to be cured into the new lifting position. This step is repeated until all lifting positions are filled with steel cylinders to be cured. S4. Close the furnace door and slowly heat the curing chamber to the process set temperature of 160-200℃. Most of the organic solvent in the coating will slowly evaporate and be discharged, avoiding the rapid vaporization of the solvent due to instantaneous high temperature, which would cause the coating to blister, crack and fall off. At the same time, the flammable organic waste gas volatilized by the coating will be transported to the external incineration equipment for harmless treatment to prevent the accumulation of flammable and explosive gas. S5. The first servo motor drives the hoisted steel cylinder to rotate continuously, and the circulating fan drives the hot air to be continuously sent downward through the air duct, forming a uniform and stable circulating hot air field in the furnace, so that the temperature in all parts of the furnace is kept consistent, and the steel cylinders in all positions can obtain a uniform and stable heating effect. The heating is maintained and cured at a constant temperature of 160-200℃ for 60-120 minutes. After the curing time is reached, the heating system is stopped, and the temperature is slowly reduced to room temperature in the sealed environment of the furnace to avoid the high temperature steel cylinder directly contacting the cold air, which may cause the coating to crack due to thermal expansion and contraction. S6. After curing is complete, open the furnace door, and the loading and unloading robot will drive the hoisting and clamping components into the furnace to remove the cylinders from the hoisting position. After removing them from the furnace body, adjust the cylinders to a horizontal position and place them on the unloading conveyor line. The unloading conveyor line will then transport them to the next process. Subsequently, rotate the rotating shaft to remove the remaining cylinders from the furnace body one by one until all the cured cylinders are removed. Then, the curing operation of the next batch of cylinders can begin. Beneficial effects

[0014] This invention provides a rotary structure steel cylinder curing furnace and curing process. It offers the following advantages: Through the coordination of the furnace body, furnace door, insulation lining, rotary hoisting assembly, and loading / unloading assembly, the rotary hoisting structure inside the furnace body suspends and secures multiple steel cylinders, preventing the cylinder sidewalls from contacting other components and thus avoiding large-area coating damage. Furthermore, during the curing process, the rotation of all cylinders around the center ensures uniform heating for each cylinder, guaranteeing consistent coating curing. The automatic loading and unloading operation eliminates the need for manual intervention, effectively improving the safety, production efficiency, and coating curing quality of the curing process.

[0015] Through the coordination of the furnace body, circulating fan, air duct, armored temperature sensor, armored pressure sensor, and explosion relief valve, the circulating fan drives hot air to be continuously sent downward through the air duct, forming a uniform circulating hot air field in the furnace body, keeping the temperature consistent throughout the furnace. At the same time, the temperature and pressure inside the furnace can be monitored in real time, so that the control system can keep the temperature inside the furnace within the set range. When the pressure inside the furnace exceeds the safe range, the explosion relief valve can automatically open to release pressure, thus ensuring the overall safety and stability of the cylinder curing operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the furnace body, rotating shaft, and lifting plate in this invention; Figure 3 This is a schematic diagram of the appearance of the present invention; Figure 4 This is a schematic diagram showing the external appearance of the hoisting plate, support plate, and grating plate in this invention; Figure 5 This is a schematic diagram showing the external appearance of the loading / unloading robot, the hoisting frame, and the clamping plate in this invention; Figure 6 for Figure 2 A magnified view of a portion of region A in the middle; Figure 7 for Figure 3 A magnified view of a portion of region B in the middle; Figure 8 for Figure 4 A magnified view of a portion of region C.

[0017] Explanation of reference numerals in the attached drawings: 1. Furnace body; 2. Furnace door; 3. Insulation lining; 4. Turntable hoisting assembly; 5. Loading and unloading assembly; 6. Temperature and pressure control assembly; 41. Rotating shaft; 42. First servo motor; 43. Hoisting plate; 44. First hoisting slot; 45. Hoisting inlet; 46. Support plate; 47. Bottom support slot; 48. Angle control assembly; 481. Grating disk; 482. Positioning hole; 483. First through-beam photoelectric sensor; 51. Material conveying platform; 52. Loading and unloading robot 53. Lifting and clamping assembly; 54. Material conveying assembly; 55. Position sensing assembly; 531. Lifting frame; 532. Clamping plate; 533. Double-rod hydraulic cylinder; 534. Second lifting slot; 535. Pad block; 541. Conveyor line; 542. Arc roller; 543. Second servo motor; 551. Limiting baffle; 552. Second through-beam photoelectric sensor; 61. Circulating fan; 62. Air duct; 63. Armored temperature sensor; 64. Armored pressure sensor; 65. Explosion relief valve. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In existing technologies, when multiple steel cylinders are placed horizontally on a trolley inside the furnace for heating and curing, the support comes into contact with the outer wall of the steel cylinder. Uneven coating thickness is likely to occur at the support points, and some areas are heated unevenly. After curing, local coating peeling and anti-corrosion failure are very likely to occur, affecting the final curing effect. At the same time, the loading and unloading of steel cylinders into the furnace is mostly done manually, which results in low production efficiency, high labor intensity, and high safety hazards.

[0020] In view of this, the present invention provides a rotary structure cylinder curing oven. Through the cooperation of the furnace body, furnace door, insulation lining, rotary hoisting assembly, and loading / unloading assembly, multiple cylinders are hoisted and fixed by setting a rotary hoisting structure inside the furnace body, so that the sidewalls of the cylinders do not come into contact with other components, avoiding large-area coating damage to the sidewalls of the cylinders. During the curing process, all cylinders are rotated around the center to ensure that each cylinder receives a uniform heating effect, ensuring the consistency of the cylinder coating curing. At the same time, the loading and unloading operations can be completed automatically without manual operation, effectively improving the safety and production efficiency of the operation, as well as the curing quality of the cylinder coating.

[0021] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0022] Depend on Figure 1-8 It is known that a rotary structure steel cylinder curing furnace includes a furnace body 1, a furnace door 2 on one side of the furnace body 1, and an insulation lining 3 on the inner wall of the furnace body 1. The rotary structure steel cylinder curing furnace also includes a rotary hoisting assembly 4 and a loading and unloading assembly 5. The rotary hoisting assembly 4 is located inside the furnace body 1; the loading and unloading assembly 5 is located outside the furnace body 1 on the side near the furnace door 2. The rotary hoisting assembly 4 suspends multiple steel cylinders vertically and rotates the steel cylinders around the center of the furnace body 1, so that each steel cylinder can be heated evenly. The loading and unloading assembly 5 sends the steel cylinders to be cured into the furnace for hoisting, and at the same time removes the cured steel cylinders from the furnace. In the specific implementation process, it is worth noting that the furnace body 1 is a vertical steel cylinder curing furnace with a rectangular overall structure and a cylindrical inner cavity to accommodate multiple vertically suspended steel cylinders. It uses an external gas-fired hot air burner for indirect heat exchange, and can also utilize stainless steel finned electric heating tubes arranged on the inner side of the furnace as heating elements. The furnace door 2 is a side-opening sealed door, driven by an electric push rod for opening and closing. The insulation lining 3 is made of aluminum silicate refractory insulation material, which effectively reduces heat loss from the furnace, lowers energy consumption, and maintains a stable furnace temperature. The rotary lifting assembly 4 uses a rotary lifting structure, vertically suspending the steel cylinders inside the furnace via lifting rods at the top. Small-area support is provided at the bottom of the cylinders to secure them, ensuring that the cylinder sidewalls do not contact other components, thus avoiding large-area coating damage. Simultaneously, by rotating all the cylinders around the center, the assembly ensures the stability of each cylinder. To achieve uniform heating, the loading and unloading assembly 5 utilizes a multi-axis industrial robotic arm to clamp and adjust the angle and posture of the cylinders, automatically completing the loading and unloading operations into the furnace body 1. This eliminates the need for manual entry into the furnace body 1, reducing operator workload, improving safety and efficiency, and preventing burns. Through the coordination of the furnace body 1, furnace door 2, insulation lining 3, turntable hoisting assembly 4, and loading and unloading assembly 5, multiple cylinders are hoisted and secured using a turntable hoisting structure inside the furnace body 1. This prevents the cylinder sidewalls from contacting other components, avoiding large-area coating damage. During the curing process, all cylinders rotate around the center, ensuring uniform heating for each cylinder and consistent coating curing. The automated loading and unloading operation, eliminating the need for manual intervention, effectively improves safety, production efficiency, and the quality of the cylinder coating curing.

[0023] Furthermore, the rotary hoisting assembly 4 includes a rotating shaft 41, a first servo motor 42, a hoisting plate 43, a first hoisting slot 44, a hoisting inlet 45, a support plate 46, and a bottom support slot 47. The rotating shaft 41 is rotatably mounted at the center of the inner cavity of the furnace body 1; the first servo motor 42 is fixedly connected to the top of the outer wall of the furnace body 1, and its output end is drivenly connected to the top of the rotating shaft 41; the hoisting plate 43 is fixedly connected to the top of the outer wall of the rotating shaft 41; the first hoisting slot 44 is equidistantly opened at the top of the outer wall of the hoisting plate 43; and the hoisting inlet 45 is opened on the outer wall of the hoisting plate 43 located in the first hoisting slot. 44 is located away from the rotating shaft 41; the support plate 46 is fixedly connected to the outer wall of the rotating shaft 41 and located below the lifting plate 43; the bottom support groove 47 is equidistantly arranged on the top of the support plate 46 and is arranged one-to-one with the first lifting groove 44; wherein, the lifting rod at the top of the cylinder is placed in the first lifting groove 44, and the bottom of the cylinder extends into the bottom support groove 47 to realize the lifting and placement of the cylinder; the first servo motor 42 drives the rotating shaft 41 to rotate, thereby driving the lifting plate 43 and the support plate 46 to adjust the angle or rotate, so as to put or take out the cylinder and heat it evenly; In the specific implementation process, it is worth noting that, through the cooperation between the rotating shaft 41, the first servo motor 42, the lifting plate 43, the first lifting slot 44, the lifting inlet 45, the support plate 46, and the bottom support slot 47, the multi-axis industrial robotic arm vertically places the gas cylinder into the furnace body 1. Then, the lifting rod at the top of the gas cylinder is inserted into the first lifting slot 44 through the lifting inlet 45, and the bottom of the gas cylinder is placed into the corresponding bottom support slot 47. The annular protrusion in the bottom support slot 47 supports the gas cylinder, thus achieving the lifting and fixing of the gas cylinder. By controlling the first servo motor 42 to drive the rotating shaft 41 to rotate, different lifting positions can be aligned with the furnace door 2 during the loading and unloading of steel cylinders, making it convenient to put or take out steel cylinders in each lifting position in sequence. During the curing and heating process, the first servo motor 42 runs continuously, driving all steel cylinders to rotate slowly. In conjunction with the circulating hot air field, it ensures that all steel cylinders are heated evenly and uniformly, avoiding continuous heating or insufficient heating of steel cylinders in the same position, and ensuring the consistency of the steel cylinder curing effect. The specific model of the first servo motor 42 is not limited, as long as it meets the usage requirements.

[0024] Furthermore, an angle control component 48 is provided at the bottom end of the rotating shaft 41. The angle control component 48 includes a grating disk 481, positioning holes 482, and a first through-beam photoelectric sensor 483. The grating disk 481 is fixedly connected to the outer wall of the rotating shaft 41 and is located below the support disk 46. The positioning holes 482 are equidistantly opened on the outer wall of the grating disk 481, and each positioning hole 482 corresponds to the first hoisting groove 44 above in the circumferential direction. The first through-beam photoelectric sensor 483 is set on one side of the grating disk 481. The positioning hole 482 located on the grating disk 481 corresponds to the cylinder hoisting position. When the first through-beam photoelectric sensor 483 detects that the positioning hole 482 has passed, it can send a positioning signal, causing the first servo motor 42 to stop rotating, the rotating shaft 41 to stop rotating, and the hoisting position corresponding to the positioning hole 482 to be aligned with the furnace door 2. In the specific implementation process, it is worth noting that through the cooperation between the rotating shaft 41, the grating disk 481, the positioning hole 482, and the first through-beam photoelectric sensor 483, the grating disk 481 rotates synchronously with the rotating shaft 41. During the loading and unloading of the steel cylinder, the first through-beam photoelectric sensor 483 can detect the positioning hole 482. When the positioning hole 482 of the corresponding hoisting position rotates to the detection position, the first through-beam photoelectric sensor 483 detects the position in time and sends a signal to stop the first servo motor 42 from rotating, ensuring that the hoisting position can be aligned with the furnace door 2 so as to put or take out the steel cylinder and avoid the steel cylinder being bumped and damaged due to position deviation. The specific model of the first through-beam photoelectric sensor 483 is not limited, as long as it meets the usage requirements.

[0025] Furthermore, the loading and unloading assembly 5 includes a material conveying platform 51, a loading and unloading robot 52, a hoisting and clamping assembly 53, a material conveying assembly 54, and a position sensing assembly 55. The material conveying platform 51 is located on the outside of the furnace body 1, near the furnace door 2. The loading and unloading robot 5 is installed on the platform of the material conveying platform 51 near the furnace door 2. The hoisting and clamping assembly 53 is located at the output end of the loading and unloading robot 52. The material conveying assembly 54 is located on the top of the material conveying platform 51. The position sensing assembly 55 is located at one end of the material conveying assembly 54. The loading and unloading robot 52 hoists and clamps the cylinders through the hoisting and clamping assembly 53 and performs loading and unloading operations into the furnace. The material conveying assembly 54 conveys the cylinders to be cured and the cylinders that have been cured. The position sensing assembly 55 detects the position of the cylinder after it has been conveyed to the correct position. In the specific implementation process, it is worth noting that through the cooperation between the material conveying platform 51, the loading and unloading robot 52, and the hoisting and clamping component 53, the hoisting and clamping component 53 located at the end of the loading and unloading robot 52 can clamp and hoist the cylinders, enabling the loading and unloading robot 52 to stably adjust the cylinder posture. The material conveying component 54 is used to convey the cylinders to be cured and the cylinders that have been cured. After the position sensing component 55 detects that the cylinder has arrived at the designated position, it sends an arrival signal, so that the loading and unloading robot 52 can automatically grab the cylinder. The entire process does not require manual handling and adjustment, which effectively reduces labor intensity and improves the safety and efficiency of loading and unloading operations. The specific model of the loading and unloading robot 52 is not limited, as long as it meets the usage requirements.

[0026] Furthermore, the lifting and clamping assembly 53 includes a lifting frame 531, a clamping plate 532, a double-rod hydraulic cylinder 533, a second lifting slot 534, and a pad 535. The lifting frame 531 is fixedly connected to the output end of the loading / unloading robot 52. Two clamping plates 532 are provided and rotatably connected to the two sides of the bottom surface of the lifting frame 531. The double-rod hydraulic cylinder 533 is installed on the outer wall of the lifting frame 531, and its output end is rotatably connected to the clamping plate 532. The second lifting slot 534 is provided at the top of the lifting frame 531. The pad 535 is fixedly connected to the outer wall of the lifting frame 531. The loading / unloading robot 52 controls the angle of the lifting frame 531, clamps the cylinder by controlling the double-rod hydraulic cylinder 533, and inserts the lifting rod at the top of the cylinder laterally into the second lifting slot 534 to adjust the cylinder from a horizontal to a vertical position, thereby realizing the lifting and clamping of the cylinder. In the specific implementation process, it is worth noting that through the cooperation between the loading and unloading robot 52, the hoisting frame 531, the clamping plate 532, the double-rod hydraulic cylinder 533, the second hoisting slot 534, and the pad block 535, when it is necessary to clamp and hoist the steel cylinder to be cured, the loading and unloading robot 52 adjusts the hoisting frame 531 to a horizontal position and moves it to the top of the steel cylinder. The control system automatically controls the double-rod hydraulic cylinder 533 to drive the two clamping plates 532 to clamp the steel cylinder. The ends of the two clamping plates 532 adopt an intersecting arc-shaped tooth structure, which can better fit the outer wall of the steel cylinder and make the steel cylinder fit tightly against the pad block 535, thus achieving the clamping of the steel cylinder. At the same time, the hoisting rod located at the top of the steel cylinder enters the second hoisting slot 534. After adjusting the steel cylinder to a vertical position, the steel cylinder is hoisted and fixed. The specific model of the double-rod hydraulic cylinder 533 is not limited, as long as it meets the usage requirements.

[0027] Furthermore, the material conveying assembly 54 includes a conveyor line 541, an arc-shaped roller 542, and a second servo motor 543. Two conveyor lines 541 are provided and fixedly connected to the top of the material conveying platform 51. The arc-shaped rollers 542 are equidistantly rotatably connected to the inner side of the conveyor line 541. The second servo motor 543 is fixedly connected to one side of the outer wall of the conveyor line 541. The second servo motor 543 drives the arc-shaped rollers 542 of the conveyor line 541 to rotate through a sprocket and a chain, thereby conveying the steel cylinders to be cured and those that have been cured. In the specific implementation process, it is worth noting that the arc-shaped structure of the outer wall of the arc roller 542 can better fit the outer wall of the cylindrical steel cylinder, preventing the steel cylinder from rolling and shifting during transportation, and ensuring the stability of the steel cylinder transportation process. Through the cooperation between the conveyor line 541, the arc roller 542 and the second servo motor 543, two conveyor lines 541 are set on the top of the material conveying platform 51. One is used to transport the steel cylinder to be cured, and the other is used to transport the steel cylinder that has been cured. By controlling the second servo motor 543, the arc roller 542 is driven to rotate by the sprocket and chain, thereby realizing the stable transportation of the steel cylinder in a horizontal posture. The specific model of the second servo motor 543 is not limited, as long as it meets the usage requirements.

[0028] Furthermore, the position sensing component 55 includes a limiting baffle 551 and a second through-beam photoelectric sensor 552. The limiting baffle 551 is fixedly connected to the end of the conveyor line 541. Two sets of the second through-beam photoelectric sensors 552 are provided and distributed on both sides of the end of the conveyor line 541. After the cylinder is conveyed or placed in the designated position, when the second through-beam photoelectric sensor 552 detects that the cylinder is in place, it sends a signal to the control system so that the loading and unloading robot 52 can pick up the cylinder to be solidified or convey the solidified cylinder to the subsequent process. In the specific implementation process, it is worth noting that the limiting baffle 551 limits the cylinder at the end of the conveyor line 541 to prevent the cylinder from rushing out of the conveyor line 541 due to inertia during the conveying process. The second through-beam photoelectric sensor 552 is used to detect the position of the cylinder and transmit the sensing signal to the control system in real time so that the loading and unloading robot 52 can pick up the cylinder to be solidified or transport the solidified cylinder to the subsequent process. The specific model of the second through-beam photoelectric sensor 552 is not limited, as long as it meets the usage requirements.

[0029] Furthermore, a temperature and pressure control assembly 6 is provided on one side of the furnace body 1. The temperature and pressure control assembly 6 includes a circulating fan 61, an air duct 62, an armored temperature sensor 63, an armored pressure sensor 64, and a relief valve 65. Multiple circulating fans 61 are installed on the top of the inner wall of the furnace body 1 and are equidistantly distributed on the outside of the rotating shaft 41. Multiple air ducts 62 are provided, vertically distributed inside the furnace body 1, and their top ends are connected to the output end of the circulating fan 61. The armored temperature sensor 63 is fixedly connected to the outer wall of the furnace body 1, and its sensing end penetrates through the furnace body 1 and the insulation lining 3. The armored pressure sensor 64... Force sensor 64 is fixedly connected to the outer wall of furnace body 1, and the sensing end penetrates through furnace body 1 and insulation lining 3; explosion relief valve 65 is set at the top of the outer wall of furnace body 1 and connected to the interior of furnace body 1; wherein, circulating fan 61 sends hot air vertically downward along the inner wall of furnace body 1 through air duct 62, and the hot air circulates in furnace body 1 to uniformly heat the gas cylinder; armored temperature sensor 63 and armored pressure sensor 64 respectively detect the temperature and pressure data in the furnace in real time; when the pressure in the furnace exceeds the safety threshold, explosion relief valve 65 automatically opens to release pressure and ensure the safe operation of furnace body 1; In the specific implementation process, it is worth noting that four circulating fans 61 are installed, evenly distributed in a ring along the rotation axis 41 on the inner top of the furnace body 1. Their output ends are connected to the air duct 62, which vertically delivers the heated air downwards along the air duct 62 into the furnace body 1. After passing over the surfaces of all the gas cylinders, the hot air flows back to the top of the furnace body 1 for recirculation, forming a stable circulating hot air field inside the furnace body 1. Combined with the slow rotation of the gas cylinders, this improves the uniformity of heating. The armored temperature sensor 63 is used to collect the temperature data inside the furnace in real time and transmit it to the control system to maintain the furnace temperature stably within the process range required for the curing of the gas cylinder coating. The armored pressure sensor... Sensor 64 monitors the pressure inside the furnace in real time. When organic solvent vapor is released during the curing process of the cylinder coating, causing the pressure inside the furnace to exceed the preset safety threshold, the explosion relief valve 65 will automatically open to quickly release the pressure and discharge the excess pressure inside the furnace. After the pressure drops back to the safe range, it will automatically close to prevent the furnace body 1 from being dangerous due to overpressure and improve the safety of equipment operation. This is achieved through the cooperation between the furnace body 1, the circulating fan 61, the air duct 62, the armored temperature sensor 63, the armored pressure sensor 64, and the explosion relief valve 65. The specific models of the circulating fan 61, the armored temperature sensor 63, the armored pressure sensor 64, and the explosion relief valve 65 are not limited, as long as they meet the usage requirements.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary-type steel cylinder curing oven, comprising an oven body (1), characterized in that: A furnace door (2) is provided on one side of the furnace body (1), and an insulation lining (3) is provided on the inner wall of the furnace body (1). The rotary structure hanging steel cylinder curing furnace also includes: A rotary hoisting assembly (4) is installed inside the furnace body (1); The loading and unloading assembly (5) is located on the outside of the furnace body (1) on the side near the furnace door (2); The rotary hoisting assembly (4) suspends multiple steel cylinders vertically and rotates them around the center of the furnace body (1) so that each steel cylinder can be heated evenly. The loading and unloading assembly (5) sends the steel cylinders to be cured into the furnace for hoisting, and at the same time removes the cured steel cylinders from the furnace.

2. The rotary structure steel cylinder curing oven according to claim 1, characterized in that: The rotary hoisting assembly (4) includes: The rotating shaft (41) is rotatably mounted in the center of the inner cavity of the furnace body (1); The first servo motor (42) is fixedly connected to the top of the outer wall of the furnace body (1), and its output end is connected to the top of the rotating shaft (41). The hoisting plate (43) is fixedly connected to the top of the outer wall of the rotating shaft (41); The first hoisting slot (44) is equidistantly opened on the top of the outer wall of the hoisting plate (43); The hoisting inlet (45) is located on the outer wall of the hoisting plate (43) on the side away from the rotation axis (41) of the first hoisting slot (44); The support plate (46) is fixedly connected to the outer wall of the rotating shaft (41) and is located below the lifting plate (43); Bottom support grooves (47) are equidistantly arranged on the top of the support plate (46) and are arranged one-to-one with the first hoisting grooves (44). The bottom support grooves (47) are provided with annular protrusions to support the steel cylinder. The lifting rod at the top of the cylinder is placed into the first lifting slot (44), and the bottom of the cylinder extends into the bottom support slot (47) to realize the lifting and placement of the cylinder. The first servo motor (42) drives the rotating shaft (41) to rotate, thereby driving the lifting plate (43) and the support plate (46) to adjust the angle or rotate so as to put the cylinder in or take it out, and to heat it evenly.

3. The rotary structure steel cylinder curing oven according to claim 2, characterized in that: An angle control component (48) is provided at the bottom end of the rotating shaft (41), and the angle control component (48) includes: The grating disk (481) is fixedly connected to the outer wall of the rotating shaft (41) and located below the support disk (46); Positioning holes (482) are equidistantly opened on the outer wall of the grating disk (481), and each positioning hole (482) corresponds to the first hoisting groove (44) above in the circumferential direction; A first through-beam photoelectric sensor (483) is disposed on one side of the grating disk (481); The positioning hole (482) on the grating disk (481) corresponds to the cylinder hoisting position. When the first through-beam photoelectric sensor (483) detects that the positioning hole (482) has passed, it can send a positioning signal to stop the first servo motor (42) from rotating. The rotating shaft (41) then stops rotating and aligns the hoisting position corresponding to the positioning hole (482) with the furnace door (2).

4. The rotary structure steel cylinder curing oven according to claim 3, characterized in that: The loading and unloading assembly (5) includes: The material conveying platform (51) is located on the outside of the furnace body (1) on the side near the furnace door (2); The loading and unloading robot (52) is installed on the platform of the material conveying platform (51) on the side near the furnace door (2); A hoisting and clamping assembly (53) is disposed at the output end of the loading and unloading robot (52); A material conveying assembly (54) is disposed on top of the material conveying platform (51); A position sensing component (55) is disposed at one end of the material conveying component (54); The loading and unloading robot (52) lifts and clamps the cylinders using the hoisting and clamping assembly (53) and loads and unloads them into the furnace. The material conveying assembly (54) conveys the cylinders to be cured and the cylinders that have been cured. The position sensing assembly (55) detects the position of the cylinders after they are conveyed to the designated position.

5. A rotary structure steel cylinder curing oven according to claim 4, characterized in that: The hoisting clamping assembly (53) includes: The hoisting frame (531) is fixedly connected to the output end of the loading and unloading robot (52); Two clamping plates (532) are provided and are rotatably connected to both sides of the bottom surface of the hoisting frame (531); A double-rod hydraulic cylinder (533) is installed on the outer wall of the lifting frame (531), and its output end is rotatably connected to the clamping plate (532). The second hoisting slot (534) is located at the top of the hoisting frame (531); The pad (535) is fixedly connected to the outer wall of the hoisting frame (531); The loading and unloading robot (52) controls the angle of the hoisting frame (531), and clamps the steel cylinder by controlling the double-rod hydraulic cylinder (533), and inserts the hoisting rod at the top of the steel cylinder into the second hoisting slot (534) to adjust the steel cylinder from a horizontal posture to a vertical posture, thereby realizing the hoisting and clamping of the steel cylinder.

6. A rotary structure steel cylinder curing oven according to claim 5, characterized in that: The material conveying assembly (54) includes: There are two conveyor lines (541), which are fixedly connected to the top of the material conveying platform (51); An arc-shaped roller (542) is equidistantly rotatably connected to the inside of the conveyor line (541); The second servo motor (543) is fixedly connected to one side of the outer wall of the conveyor line (541); The second servo motor (543) drives the arc-shaped roller (542) of the conveyor line (541) to rotate via a sprocket and chain, thereby conveying the steel cylinders to be cured and those that have been cured.

7. A rotary-type steel cylinder curing oven according to claim 6, characterized in that: The position sensing component (55) includes: A limiting baffle (551) is fixedly connected to the end of the conveyor line (541); The second through-beam photoelectric sensor (552) is provided in two sets, distributed on both sides of the end of the conveyor line (541); When the cylinder is transported or placed in a designated position, the second photoelectric sensor (552) detects that the cylinder is in place and sends a signal to the control system so that the loading and unloading robot (52) can pick up the cylinder to be cured or transport the cured cylinder to the subsequent process.

8. A rotary structure steel cylinder curing oven according to claim 7, characterized in that: A temperature and pressure control assembly (6) is provided on one side of the furnace body (1), and the temperature and pressure control assembly (6) includes: Multiple circulating fans (61) are installed on the top of the inner wall of the furnace body (1) and are evenly distributed on the outside of the rotating shaft (41); Multiple air ducts (62) are provided, vertically distributed inside the furnace body (1), and their top ends are connected to the output end of the circulating fan (61); The armored temperature sensor (63) is fixedly connected to the outer wall of the furnace body (1), and the sensing end penetrates through the furnace body (1) and the insulation lining (3). The armored pressure sensor (64) is fixedly connected to the outer wall of the furnace body (1), and the sensing end penetrates through the furnace body (1) and the insulation lining (3). An explosion relief valve (65) is installed on the top of the outer wall of the furnace body (1) and is connected to the interior of the furnace body (1); The circulating fan (61) sends hot air vertically downward along the inner wall of the furnace body (1) through the air duct (62). The hot air circulates in the furnace body (1) to heat the steel cylinder evenly. The armored temperature sensor (63) and armored pressure sensor (64) detect the temperature and pressure data in the furnace in real time. When the pressure in the furnace exceeds the safety threshold, the explosion relief valve (65) automatically opens to release pressure and ensure the safe operation of the furnace body (1).

9. A rotary structure for curing steel cylinders, applied in a rotary structure for curing steel cylinders as described in claim 8, characterized in that: Includes the following steps: S1. Start the circulating fan (61) and heating system. The armored temperature sensor (63) and armored pressure sensor (64) collect the temperature and pressure data in the furnace in real time, preheat the curing main cavity to 120-140°C, and turn on the exhaust system to maintain a slight negative pressure in the curing furnace, waiting for the steel cylinder to be hoisted and put in. S2. Place the steel cylinder to be cured on the top of the arc roller (542) of the conveyor line (541) for conveying. After being conveyed to the designated position, the second through-beam photoelectric sensor (552) detects that the steel cylinder is in place and sends an in place signal to the control system. The control system controls the second servo motor (543) to stop the operation of the conveyor line (541). At the same time, it controls the loading and unloading robot (52) to drive the hoisting and clamping assembly (53) to move above the steel cylinder. It controls the double-rod hydraulic cylinder (533) to drive the two clamping plates (532) to clamp the steel cylinder and insert the hoisting rod at the top of the steel cylinder into the second hoisting slot (534) to lift the horizontally placed steel cylinder upward and adjust the angle. Then, open the furnace door (2) and send the steel cylinder into the furnace body (1). Align the hoisting rod at the top of the steel cylinder with the first hoisting slot (44) of the corresponding hoisting position and put it in. After adjusting the steel cylinder to a vertical position, insert the bottom of the steel cylinder into the corresponding bottom support slot (47) to complete the loading of a single steel cylinder. S3. The control system automatically controls the first servo motor (42) to drive the rotating shaft (41) and the lifting plate (43) to rotate. When the first through-beam photoelectric sensor (483) detects that the positioning hole (482) corresponding to the next empty lifting position has passed, it sends a position signal to stop the first servo motor (42) from rotating and lifts the steel cylinder to be cured into the new lifting position. This step is repeated until all lifting positions are filled with steel cylinders to be cured. S4. Close the furnace door (2), slowly heat the curing chamber to the process set temperature of 160-200℃, and most of the organic solvent in the coating slowly evaporates and is discharged, avoiding the instantaneous high temperature that causes the solvent to vaporize rapidly, causing the coating to bubble, crack and fall off. At the same time, the flammable organic waste gas volatilized by the coating is transported to the external incineration equipment for harmless treatment, preventing the accumulation of flammable and explosive gas. S5. The first servo motor (42) drives the hoisted steel cylinder to rotate continuously, and the circulating fan (61) drives the hot air to be continuously sent down through the air duct (62) to form a uniform and stable circulating hot air field in the furnace, so that the temperature in all parts of the furnace is kept consistent, and the steel cylinders in each position can obtain a uniform and stable heating effect. The heating is maintained and cured for 60 to 120 minutes in a constant temperature environment of 160 to 200°C. After the curing time is reached, the heating system is stopped and the temperature is slowly reduced to room temperature in a closed environment in the furnace to avoid the high temperature steel cylinders from directly contacting the cold air and causing the coating to expand and contract and crack. S6. After curing is completed, open the furnace door (2), and the loading and unloading robot (52) drives the hoisting and clamping assembly (53) into the furnace to take out the steel cylinder from the hoisting position. After moving it out of the furnace body (1), adjust the steel cylinder to a horizontal position and place it on the unloading conveyor line (541). The unloading conveyor line (541) will transport it to the next process. Then, rotate the rotating shaft (41) to move the remaining steel cylinder out of the furnace body (1) in sequence until all the cured steel cylinders are taken out. Then the curing operation of the next batch of steel cylinders can be carried out.

Images