Heat treatment equipment for annealing production line of full-automatic punching and drawing steel cylinder blank

Abstract

The invention relates to the technical field of metal heat treatment, in particular to heat treatment equipment for a full-automatic punching and drawing steel cylinder blank annealing production line. The invention relates to heat treatment equipment for a full-automatic punching and drawing steel cylinder blank annealing production line, which comprises an annealing furnace, the stepping mechanism is used for sequentially placing the steel cylinders at intervals in the length direction of the annealing furnace and driving the steel cylinders to move from the feeding end of the annealing furnace to the discharging end of the annealing furnace one by one in the length direction of the annealing furnace. The steel cylinder annealing system has the following effects that the problem of tensile deformation and damage of a chain or a mesh belt at high temperature in a traditional chain or mesh belt type driving mode is solved, the maintenance cost of the steel cylinder annealing system is reduced, energy waste is reduced, meanwhile, steel cylinders can move in an annealing furnace in order, and it is guaranteed that the annealing process is carried out smoothly.

Description

Technical Field

[0001] This application relates to the technical field of metal heat treatment, and in particular to a heat treatment equipment for a fully automated annealing production line for punched steel cylinder blanks. Background Technology

[0002] In the field of heat treatment technology for metal materials, steel cylinders are common metal products, and the annealing treatment of their stamped steel cylinder blanks is crucial to ensuring cylinder quality. With the expansion of industrial production scale and the improvement of product quality requirements, the annealing technology in the steel cylinder manufacturing process is constantly exploring more efficient and economical methods to meet the needs of large-scale production and high-quality products. This not only relates to the production efficiency and cost of steel cylinder manufacturing enterprises, but also plays an important role in promoting the development of the entire heat treatment industry for metal materials.

[0003] Currently, to address the issue of annealing cylinders, major domestic cylinder manufacturers generally employ chain or mesh belt-driven punching and annealing processes. The chain or mesh belt in the chain or mesh belt conveyor mechanism supports and drives the movement of the cylinders within the furnace. The cyclical movement of the chain or mesh belt moves the cylinders within the furnace, achieving the annealing process. This method can complete the annealing of cylinders to a certain extent and is a relatively common processing method.

[0004] However, when chains or mesh belts operate and are pulled under high temperatures for extended periods, the chain links or mesh belts suffer severe stretching deformation and damage, requiring frequent replacement of chains or mesh belts. This significantly increases the maintenance costs of the gas cylinder annealing production line. Furthermore, the chains sometimes operate inside the high-temperature furnace and sometimes outside the furnace, resulting in invisible energy waste and failing to meet the requirements of energy-efficient production. Summary of the Invention

[0005] To reduce maintenance costs and energy waste in the gas cylinder annealing production line, this application provides a heat treatment equipment for a fully automated gas cylinder billet annealing production line.

[0006] This application provides a heat treatment equipment for a fully automatic punching and drawing steel cylinder blank annealing production line, which adopts the following technical solution: it includes an annealing furnace, and a stepping mechanism is provided inside the annealing furnace. The stepping mechanism is used to place multiple steel cylinders sequentially at intervals along the length direction of the annealing furnace and to drive multiple steel cylinders to move one by one from the feeding end of the annealing furnace to the discharging end of the annealing furnace along the length direction of the annealing furnace.

[0007] By adopting the above technical solutions, the problem of tensile deformation and damage of chains or mesh belts under high temperatures in traditional chain or mesh belt drive methods has been improved, reducing the maintenance cost of the cylinder annealing system, reducing energy waste, and enabling the cylinders to move orderly in the annealing furnace, thus ensuring the smooth progress of the annealing process.

[0008] Preferably, the stepping mechanism includes a stationary beam and a moving beam. The stationary beam supports multiple steel cylinders placed at intervals along the length of the annealing furnace. The moving beam moves vertically and along the length of the annealing furnace to drive the multiple steel cylinders to move one by one from the feed end of the annealing furnace to the discharge end of the annealing furnace along the length of the annealing furnace.

[0009] By adopting the above technical solution, the static beam and the moving beam work together. The static beam provides stable support for the gas cylinder, while the moving beam is responsible for lifting the gas cylinder and moving it forward. When the moving beam rises, the gas cylinder is separated from the static beam and lifted. Then the moving beam moves forward one position and then descends to make the gas cylinder fall back onto the static beam. This cycle is repeated to realize the forward movement of the gas cylinder in the annealing furnace.

[0010] Preferably, multiple static beams are provided, the length direction of the static beams is perpendicular to the axial direction of the cylinder, and the multiple static beams are parallel to each other and equidistant from each other along the axial direction of the cylinder. Multiple moving beams are provided, the length direction of the moving beams is perpendicular to the axial direction of the cylinder, and the multiple moving beams are parallel to each other and equidistant from each other along the axial direction of the cylinder. The multiple moving beams and the multiple static beams are sequentially spaced along the axial direction of the cylinder.

[0011] By adopting the above technical solutions, multiple static beams can more stably support the gas cylinders, ensuring that the gas cylinders are accurately positioned in the annealing furnace and preventing the gas cylinders from shaking or shifting, which would affect the annealing effect. Multiple moving beams can improve the stability of the gas cylinders during transportation, reduce the probability of collisions and hard friction during movement, and improve the annealing process effect.

[0012] Preferably, the top of the stationary beam is provided with a plurality of first arc-shaped grooves for placing gas cylinders. The plurality of first arc-shaped grooves are sequentially opened along the length direction of the stationary beam, and each first arc-shaped groove corresponds to one gas cylinder. Similarly, the top of the moving beam is provided with a plurality of second arc-shaped grooves for placing gas cylinders. The plurality of second arc-shaped grooves are sequentially opened along the length direction of the moving beam, and each second arc-shaped groove corresponds to one gas cylinder.

[0013] By adopting the above technical solution, the first arc-shaped groove and the second arc-shaped groove can effectively support the steel cylinder and prevent it from rolling or shaking. When the moving beam rises, the steel cylinder enters the second arc-shaped groove from the first arc-shaped groove. When the moving beam descends, the steel cylinder returns from the second arc-shaped groove to the first arc-shaped groove. This arc-shaped groove design makes the steel cylinder more stable during movement and further improves the uniformity of heating of the steel cylinder.

[0014] Preferably, the bottom of the annealing furnace is provided with a drive beam and a drive assembly. The drive beam is connected to the moving beam through a push rod. Multiple push rods are provided, and each push rod corresponds to one of the multiple moving beams. The drive assembly is used to drive the drive beam to adjust its position.

[0015] By adopting the above technical solution, the drive beam and the push rod work together. The drive beam is adjusted in position under the drive component, and the motion is transmitted to the moving beam through the push rod, thereby realizing the lifting, translation and lowering of the moving beam. This structural design ensures that the moving beam can move accurately according to the control of the drive component, realizing the orderly movement of the gas cylinder in the annealing furnace.

[0016] Preferably, the driving assembly includes a first driving component and a second driving component, both of which are disposed at the bottom of the annealing furnace. The first driving component is used to drive the driving beam to slide back and forth along the length of the annealing furnace, and the second driving component drives the driving beam to adjust its height through a transmission assembly.

[0017] By adopting the above technical solution, the No. 1 drive component and the No. 2 drive component cooperate with each other. The No. 1 drive component controls the horizontal movement of the cylinder, and the No. 2 drive component controls the vertical movement of the cylinder. Together, they complete the stepping movement of the cylinder in the annealing furnace. This collaborative working method realizes the precise position adjustment of the moving beam, ensures the orderly movement of the cylinder in the annealing furnace, and improves the stability and reliability of the process.

[0018] Preferably, the transmission assembly includes an inclined block and a top ball. The inclined block is disposed at the bottom of the annealing furnace and located on the side of the annealing furnace near the discharge end. The top of the inclined block is inclined, and the height of the inclined block near the feed end of the annealing furnace is higher than the height of the inclined block near the discharge end of the annealing furnace. The top ball is connected to the second driving component through a first connecting block. The first connecting block and the second driving component are rotatably connected. The second driving component drives the top ball to slide back and forth along the inclined surface of the inclined block, and the top ball abuts against the bottom of the driving beam.

[0019] By adopting the above technical solution, when the second driving component pushes the top ball to rise along the inclined surface of the inclined block, the top ball lifts the driving beam, thereby raising the moving beam; when the second driving component pulls the top ball to descend along the inclined surface of the inclined block, the driving beam descends, and the moving beam also descends. This transmission method cleverly transforms the linear motion of the second driving component into the lifting motion of the driving beam, realizing the adjustment of the moving beam height. Moreover, the structure is simple and reliable, reducing the complexity of the equipment and maintenance costs.

[0020] Preferably, the stepping mechanism is provided in multiple sets, and the multiple sets of stepping mechanisms are arranged sequentially in the annealing furnace along the length direction of the annealing furnace. The push rod is provided in multiple sets, and the multiple push rods act on the ends and tails of the multiple stepping mechanisms respectively.

[0021] By adopting the above technical solution, multiple stepping mechanisms work together to achieve more efficient movement of the gas cylinder in the annealing furnace. The reasonable arrangement of the push rods ensures that each stepping mechanism can accurately receive the motion transmitted by the drive beam, making the movement of the gas cylinder more stable and reliable, and further improving the efficiency and quality of the process.

[0022] Preferably, it further includes a feeding and holding chamber, and two feeding and holding chambers are provided, which are located on both sides of the annealing furnace. The feeding end of the annealing furnace is provided with a furnace front loading trolley and a conveying roller conveyor. The length direction of the conveying roller conveyor is perpendicular to the length direction of the annealing furnace and spans the two feeding and holding chambers and the annealing furnace. The furnace front loading trolley is located on the side of the conveying roller conveyor away from the annealing furnace and is used to deliver the gas cylinders on the conveying roller conveyor to the feeding end of the annealing furnace.

[0023] By adopting the above technical solution, there are two feeding and holding chambers, which are set on both sides of the annealing furnace. This can reduce the heat loss of the stamped steel cylinder after it is transported from the hot stamping forming process, prepare it for the subsequent annealing process, and improve the energy utilization efficiency. The cooperation between the furnace front feeding trolley and the conveying roller conveyor realizes the smooth transportation of the steel cylinder from the feeding and holding chamber to the feeding end of the annealing furnace.

[0024] Preferably, it also includes a transition insulation box, a slow cooling furnace, and a cooling mechanism. The steel cylinders coming out of the annealing furnace pass sequentially through the transition insulation box, the slow cooling furnace, and the cooling mechanism. The slow cooling furnace is equipped with the stepping mechanism, the driving component, and the transmission component, and the stepping mechanism, the driving component, and the transmission component in the slow cooling furnace adopt the same structural layout as the annealing furnace.

[0025] By adopting the above technical solution, the gas cylinder passes through the annealing furnace, the transition insulation box, the slow cooling furnace and the cooling mechanism in sequence. Through the reasonable insulation structure and the movement mode of the gas cylinder, the temperature is reduced step by step, which reduces heat loss and makes the gas cylinder more evenly heated, reduces energy waste, improves the heating uniformity of the gas cylinder, and makes the annealing process more effective.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The system has a compact structure and does not use chain drive, which improves the problem of tensile deformation and damage of chains or mesh belts at high temperatures in traditional chain or mesh belt drive methods. It reduces the maintenance cost of the cylinder annealing system, reduces energy waste, and at the same time enables the cylinders to move orderly in the annealing furnace, ensuring the smooth progress of the annealing process. 2. The stationary beam and the moving beam work together. The stationary beam provides stable support for the gas cylinder, while the moving beam is responsible for lifting the gas cylinder and moving it forward. When the moving beam rises, the gas cylinder is separated from the stationary beam and lifted. Then the moving beam moves forward one position and then descends to make the gas cylinder fall back onto the stationary beam. This cycle is repeated to realize the forward movement of the gas cylinder in the annealing furnace. 3. The cylinder rotates while being punched, which optimizes the heating and cooling of the cylinder and improves the processing effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a partial structural diagram of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 yes Figure 2 A magnified view of part B in the diagram.

[0028] Explanation of reference numerals in the attached drawings: 1. Charging trolley in front of furnace; 2. Inlet / outlet furnace door; 3. Annealing furnace; 4. Conveying roller conveyor; 5. Transition insulation box; 6. Centering machine mechanism; 7. Feeding trolley; 8. Slow cooling furnace; 9. Cooling mechanism; 10. Stepping mechanism; 101. Static beam; 102. Moving beam; 103. First arc groove; 104. Second arc groove; 105. Drive beam; 11. Drive assembly; 111. First drive component; 112. Second drive component; 12. Top rod; 13. Water seal; 14. Water tank; 15. Feeding insulation chamber; 16. Transmission assembly; 161. Inclined block; 162. Top ball; 17. Gas cylinder. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses a heat treatment equipment for a fully automated stamping and drawing steel cylinder blank annealing production line, which reduces the maintenance cost of the steel cylinder annealing production line and reduces energy waste.

[0031] refer to Figure 1 and Figure 2A fully automatic heat treatment equipment for annealing production line of stamped steel cylinder 17 blanks includes an annealing furnace 3, a feeding and holding chamber 15, a transition holding box 5, a slow cooling furnace 8, and a cooling mechanism 9. Two feeding and holding chambers 15 are provided for heat preservation of the stamped steel cylinder 17. The two feeding and holding chambers 15 are respectively located on both sides of the annealing furnace 3, which can reduce heat loss of the stamped steel cylinder 17 after being transported from the hot stamping forming process, preparing it for the subsequent annealing process and improving energy utilization efficiency. The feeding end of the annealing furnace 3 is equipped with a furnace door 2, a furnace front loading trolley 1, and a conveying roller conveyor 4. The length direction of the conveying roller conveyor 4 is perpendicular to the length direction of the annealing furnace 3 and spans the two feeding and holding chambers 15 and the annealing furnace 3. The conveying roller conveyor 4 can be composed of multiple rollers; the rotation of the rollers moves the steel cylinder 17. The furnace front loading trolley 1 is located on the conveying roller conveyor 4 away from the annealing furnace 3. On the side, the stamped steel cylinder 17, still retaining a certain temperature after being transported from the hot stamping forming process, runs through the conveyor roller 4 to the feeding and insulation chamber 15 for heat preservation. When the annealing process is to be carried out, the inlet and outlet furnace door 2 is opened, and the furnace front loading trolley 1 first lifts the steel cylinder 17 and then sends it into the annealing furnace 3, realizing the smooth transportation of the steel cylinder 17 from the feeding and insulation chamber 15 to the feeding end of the annealing furnace 3. The steel cylinder 17 coming out of the annealing furnace 3 passes through the transition insulation box 5, the slow cooling furnace 8 and the cooling mechanism 9 in sequence. The transition insulation box 5 is used to maintain the temperature of the steel cylinder 17 during the process of the steel cylinder 17 from the annealing furnace 3 to the slow cooling furnace 8, so as to avoid the sudden drop in temperature affecting the annealing quality of the steel cylinder 17. The annealing furnace 3 and the slow cooling furnace 8 are used to slowly cool the steel cylinder 17 in the slow cooling furnace 8, further improving the performance of the steel cylinder 17. The cooling mechanism 9 is used to perform the final cooling of the steel cylinder 17 to bring it to a suitable temperature.

[0032] Further, refer to Figure 1 , Figure 2 and Figure 3 The annealing furnace 3 is equipped with a stepping mechanism 10. The stepping mechanism 10 is used to place multiple steel cylinders 17 sequentially at intervals along the length of the annealing furnace 3 and to drive the multiple steel cylinders 17 to move one by one from the feed end to the discharge end of the annealing furnace 3 along the length of the annealing furnace 3. This improves the problem of tensile deformation and damage of chains or mesh belts at high temperatures in traditional chain or mesh belt drive methods, reduces the maintenance cost of the steel cylinder 17 annealing system, reduces energy waste, and at the same time enables the steel cylinders 17 to move in an orderly manner in the annealing furnace 3, ensuring the smooth progress of the annealing process.

[0033] Specifically, the stepping mechanism 10 includes a stationary beam 101 and a moving beam 102. The stationary beam 101 supports multiple steel cylinders 17 placed at intervals along the length of the annealing furnace 3. The stationary beam 101 is made of heat-resistant steel, is long and narrow, and has a special surface treatment to improve its wear resistance and corrosion resistance. The moving beam 102 drives the multiple steel cylinders 17 to move one by one from the feed end to the discharge end of the annealing furnace 3 along the length of the annealing furnace 3. Multiple stationary beams 101 are provided, with their length direction perpendicular to the axial direction of the steel cylinders 17. The multiple stationary beams 101 are parallel to each other and are equidistant from each other along the axial direction of the steel cylinders 17. Multiple stationary beams 101 can more stably support the cylinder 17, ensuring the accurate placement of the cylinder 17 in the annealing furnace 3 and preventing the cylinder 17 from shaking or shifting, thus affecting the annealing effect. Multiple moving beams 102 are also provided. The length direction of the moving beams 102 is perpendicular to the axial direction of the cylinder 17. Multiple moving beams 102 are parallel to each other and are equally spaced along the axial direction of the cylinder 17. Multiple moving beams 102 can improve the stability of the cylinder 17 during transportation, reduce the probability of collision and hard friction during the movement of the cylinder 17, and improve the annealing process effect. Multiple moving beams 102 and multiple stationary beams 101 are arranged sequentially and spaced along the axial direction of the cylinder 17.

[0034] The stationary beam 101 and the moving beam 102 work together. The stationary beam 101 provides stable support for the cylinder 17, while the moving beam 102 is responsible for lifting the cylinder 17 and moving it forward. When the moving beam 102 rises, the cylinder 17 is separated from the stationary beam 101 and lifted. Then the moving beam 102 moves forward one position and then falls back onto the stationary beam 101. This cycle is repeated to allow the cylinder 17 to move forward in the annealing furnace 3. This working method ensures that the cylinder 17 does not collide or rub hard during the movement. In addition, the cylinder 17 rotates while moving forward, which ensures that the cylinder 17 is heated evenly and improves the process effect.

[0035] The top of the stationary beam 101 has multiple first arc-shaped grooves 103 for placing the steel cylinder 17. These grooves are sequentially formed along the length of the stationary beam 101, with each groove corresponding to a steel cylinder 17. The curvature of the first arc-shaped groove 103 matches the outer diameter of the steel cylinder 17, effectively supporting it and preventing it from rolling or shaking. The surface of the first arc-shaped groove 103 is polished to reduce friction with the steel cylinder 17. Friction; Similarly, the top of the moving beam 102 is provided with multiple second arc-shaped grooves 104 for placing the steel cylinder 17. Multiple second arc-shaped grooves 104 are opened sequentially along the length of the moving beam 102, and each second arc-shaped groove 104 corresponds to one steel cylinder 17. The structural features of the second arc-shaped groove 104 are similar to those of the first arc-shaped groove 103, but during the process of the moving beam 102 lifting and moving the steel cylinder 17, it is necessary to ensure that the steel cylinder 17 can smoothly enter and leave the second arc-shaped groove 104.

[0036] When the moving beam 102 rises, the cylinder 17 enters the second arc-shaped groove 104 from the first arc-shaped groove 103. When the moving beam 102 descends, the cylinder 17 returns from the second arc-shaped groove 104 to the first arc-shaped groove 103. This arc-shaped groove design makes the cylinder 17 more stable during movement and further improves the uniformity of heating of the cylinder 17.

[0037] refer to Figure 2 , Figure 3 and Figure 4 To achieve the position adjustment of the moving beam 102, a drive beam 105 and a drive assembly 11 are provided at the bottom of the annealing furnace 3. The drive beam 105 is connected to the moving beam 102 through a push rod 12. Multiple push rods 12 are provided, and multiple push rods 12 correspond one-to-one with multiple moving beams 102. The drive assembly 11 is used to drive the drive beam 105 to adjust its position. The push rod 12 is usually made of high-strength steel. One end of it is firmly connected to the moving beam 102, and the other end is connected to the drive beam 105. The drive beam 105 and the push rod 12 work together. The drive beam 105 adjusts its position under the drive of the drive assembly 11. The motion is transmitted to the moving beam 102 through the push rod 12, thereby realizing the lifting, translation, and lowering of the moving beam 102. This structural design ensures that the moving beam 102 can move accurately according to the control of the drive assembly 11, so as to realize the orderly movement of the gas cylinder 17 in the annealing furnace 3.

[0038] The drive assembly 11 includes a first drive component 111 and a second drive component 112. Both the first drive component 111 and the second drive component 112 are located at the bottom of the annealing furnace 3. The first drive component 111 is used to drive the drive beam 105 to slide back and forth along the length of the annealing furnace 3. The second drive component 112 drives the drive beam 105 to adjust its height through the transmission assembly 16. In this embodiment, the first drive component 111 is a cylinder, and the piston rod of the cylinder is connected to the drive beam 105. Through the extension and retraction of the cylinder, the drive beam 105 moves along the length of the annealing furnace 3. The reciprocating sliding along the length direction, the second drive component 112 is also a cylinder, and the height of the drive beam 105 is changed through the transmission component 16. The first drive component 111 and the second drive component 112 cooperate with each other. The first drive component 111 controls the horizontal movement of the steel cylinder 17, and the second drive component 112 controls the vertical movement of the steel cylinder 17. Together they complete the stepping movement of the steel cylinder 17 in the annealing furnace 3, realize the precise position adjustment of the moving beam 102, ensure the orderly movement of the steel cylinder 17 in the annealing furnace 3, and improve the stability and reliability of the process.

[0039] The transmission assembly 16 includes an inclined block 161 and a top ball 162. The inclined block 161 is located at the bottom of the annealing furnace 3 and on the side of the annealing furnace 3 near the discharge end. The top of the inclined block 161 is inclined. The height of the side of the inclined block 161 near the feed end of the annealing furnace 3 is higher than the height of the side of the inclined block 161 near the discharge end of the annealing furnace 3. The top ball 162 is connected to the second driving component 112 through the first connecting block. The first connecting block and the second driving component 112 are rotatably connected. The second driving component 112 drives the top ball 162 to slide back and forth along the inclined surface of the inclined block 161. The top ball 162 abuts against the bottom of the driving beam 105. Its inclination angle is designed according to actual needs to ensure that the top ball 162 can slide smoothly on the inclined surface. The top ball 162 has a spherical structure and a smooth surface to reduce the friction between the inclined block 161 and the driving beam 105.

[0040] When the second drive component 112 pushes the top ball 162 to rise along the inclined surface of the inclined block 161, the top ball 162 lifts the drive beam 105, thereby raising the moving beam 102. When the second drive component 112 pulls the top ball 162 down along the inclined surface of the inclined block 161, the drive beam 105 descends, and the moving beam 102 also descends. This transmission method cleverly transforms the linear motion of the second drive component 112 into the lifting motion of the drive beam 105, realizing the adjustment of the height of the moving beam 102. Moreover, the structure is simple and reliable, reducing the complexity of the equipment and maintenance costs.

[0041] Multiple sets of stepping mechanisms 10 are arranged sequentially along the length of the annealing furnace 3. Multiple push rods 12 are also provided, each acting on the end and tail of one stepping mechanism 10. The coordinated operation of these multiple stepping mechanisms 10 enables more efficient movement of the gas cylinder 17 within the annealing furnace 3. The optimized arrangement of the push rods 12 ensures that each stepping mechanism 10 accurately receives the motion transmitted by the drive beam 105, making the movement of the gas cylinder 17 more stable and reliable, further improving the efficiency and quality of the process.

[0042] In addition, the slow cooling furnace 8 is also equipped with a stepping mechanism 10, a drive assembly 11, and a transmission assembly 16. The stepping mechanism 10, drive assembly 11, and transmission assembly 16 in the slow cooling furnace 8 adopt the same structural layout as the annealing furnace 3. This achieves the beneficial effects of reducing the maintenance cost of the annealing system of the cylinder 17, reducing energy waste, and improving the heating uniformity and process treatment effect of the cylinder 17. It avoids the problem of tensile deformation and damage of the chain or mesh belt at high temperature. At the same time, through a reasonable heat preservation structure and the movement mode of the cylinder 17, heat loss is reduced and the cylinder 17 is heated more evenly.

[0043] To further reduce heat loss, the annealing furnace 3 is also equipped with a sealing mechanism. The sealing mechanism includes a connecting cover plate on the upper part of the top rod 12, a water seal 13 connected to the lower end of the top rod 12, and a sealing water tank 14. The water tank 14 is filled with water to prevent the heat inside the furnace from directly escaping outside the furnace, thus isolating the hot air flow inside the furnace from the outside air and further preventing the heat loss inside the furnace. The water seal 13 and the water tank 14 isolate the heat from leakage, preventing the heat loss inside the furnace. In this embodiment, a feeding trolley 7 and a centering mechanism 6 are also provided between the transition insulation box 5 and the slow cooling furnace 8. The steel cylinder 17 coming out of the transition insulation box 5 is flipped onto the feeding trolley 7 and centered by the centering mechanism to ensure that the steel cylinder 17 remains centered.

[0044] The implementation principle of the heat treatment equipment of the fully automatic stamped steel cylinder 17 billet annealing production line in this application embodiment is as follows: The stamped steel cylinder 17, after being transported from the hot stamping forming process, still retains a certain temperature. It runs through the conveyor roller 4 to the feeding and insulation chamber 15 for heat preservation. When the annealing process is to be carried out, the inlet and outlet furnace door 2 is opened. The furnace front loading trolley 1 first lifts the steel cylinder 17 and then moves forward to send the stamped steel cylinder 17 to the stationary beam 101. The moving beam 102 is driven by the push rod 12 to lift upward, then moves forward one station and then descends. After descending, it moves backward to the initial position. After the moving beam 102 descends, the steel cylinder 17 falls on the stationary beam 101 and rolls along the arc of the stationary beam 101. The above actions are repeated in each cycle. Finally, it rolls from the annealing furnace 3 into the transition insulation box 5, and then flips onto the feeding trolley 7 for centering by the centering mechanism 6 to ensure that the steel cylinder 17 is kept in a state of equilibrium. The cylinder 17 is fed into the slow cooling furnace 8 for slow cooling, and then exits into the cooling mechanism 9 for final cooling. The movement mode and principle of the cylinder 17 in the slow cooling furnace 8 are the same as those in the annealing furnace 3. The heat treatment equipment of this fully automatic punched cylinder 17 billet annealing production line uses a stepping mechanism 10 to replace the traditional chain or mesh belt drive, avoiding the problem of tensile deformation and damage of the chain or mesh belt at high temperatures, and reducing the maintenance cost of the cylinder 17 annealing system. At the same time, by reasonably setting up the feeding insulation chamber 15, the transition insulation box 5 and other insulation structures, heat loss is reduced and energy is saved. The cooperation between the static beam 101 and the moving beam 102 in the stepping mechanism 10 and the design of the arc groove ensure that there is no collision or hard friction during the movement of the cylinder 17. Moreover, the cylinder 17 rotates while moving forward, ensuring uniform heating of the cylinder 17 and improving the process treatment effect.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line, comprising an annealing furnace (3), characterized in that: The annealing furnace (3) is provided with a stepping mechanism (10), which is used to place multiple steel cylinders (17) sequentially at intervals along the length direction of the annealing furnace (3) and to drive multiple steel cylinders (17) to move one by one from the feed end of the annealing furnace (3) toward the discharge end of the annealing furnace (3) along the length direction of the annealing furnace (3).

2. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 1, characterized in that: The stepping mechanism (10) includes a stationary beam (101) and a moving beam (102). The stationary beam (101) is used to support multiple steel cylinders (17) placed at intervals along the length of the annealing furnace (3) inside the annealing furnace (3). The moving beam (102) moves in the vertical direction and along the length of the annealing furnace (3) to drive the multiple steel cylinders (17) to move one by one from the feed end of the annealing furnace (3) towards the discharge end of the annealing furnace (3) along the length of the annealing furnace (3).

3. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 2, characterized in that: Multiple static beams (101) are provided, with the length direction of the static beams (101) perpendicular to the axial direction of the cylinder (17). The multiple static beams (101) are parallel to each other and are equidistant from each other along the axial direction of the cylinder (17). Multiple moving beams (102) are provided, with the length direction of the moving beams (102) perpendicular to the axial direction of the cylinder (17). The multiple moving beams (102) are parallel to each other and are equidistant from each other along the axial direction of the cylinder (17). The multiple moving beams (102) and the multiple static beams (101) are sequentially spaced along the axial direction of the cylinder (17).

4. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 3, characterized in that: The top of the static beam (101) is provided with a plurality of first arc-shaped grooves (103), which are used for placing steel cylinders (17). The plurality of first arc-shaped grooves (103) are opened sequentially along the length direction of the static beam (101), and each first arc-shaped groove (103) corresponds to one steel cylinder (17). Similarly, the top of the moving beam (102) is provided with a plurality of second arc-shaped grooves (104), which are used for placing steel cylinders (17). The plurality of second arc-shaped grooves (104) are opened sequentially along the length direction of the moving beam (102), and each second arc-shaped groove (104) corresponds to one steel cylinder (17).

5. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 4, characterized in that: The bottom of the annealing furnace (3) is provided with a drive beam (105) and a drive assembly (11). The drive beam (105) is connected to the moving beam (102) through a top rod (12). There are multiple top rods (12), and the multiple top rods (12) correspond one-to-one with the multiple moving beams (102). The drive assembly (11) is used to drive the drive beam (105) to adjust its position.

6. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 5, characterized in that: The drive assembly (11) includes a first drive component (111) and a second drive component (112). Both the first drive component (111) and the second drive component (112) are located at the bottom of the annealing furnace (3). The first drive component (111) is used to drive the drive beam (105) to slide back and forth along the length of the annealing furnace (3). The second drive component (112) drives the drive beam (105) to adjust its height through the transmission assembly (16).

7. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 6, characterized in that: The transmission assembly (16) includes an inclined block (161) and a top ball (162). The inclined block (161) is located at the bottom of the annealing furnace (3) and on the side of the annealing furnace (3) near the discharge end. The top of the inclined block (161) is inclined. The height of the side of the inclined block (161) near the feed end of the annealing furnace (3) is higher than the height of the side of the inclined block (161) near the discharge end of the annealing furnace (3). The top ball (162) is connected to the second drive member (112) through a first connecting block. The first connecting block and the second drive member (112) are rotatably connected. The second drive member (112) drives the top ball (162) to slide back and forth along the inclined surface of the inclined block (161). The top ball (162) abuts against the bottom of the drive beam (105).

8. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 7, characterized in that: The stepping mechanism (10) is provided in multiple sets. The multiple sets of stepping mechanisms (10) are arranged sequentially in the annealing furnace (3) along the length direction of the annealing furnace (3). The push rod (12) is provided in multiple sets. The multiple push rods (12) act on the ends and tails of the multiple stepping mechanisms (10) respectively.

9. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 1, characterized in that: It also includes a feeding and holding chamber (15), two of which are provided. The two feeding and holding chambers (15) are located on both sides of the annealing furnace (3). The feeding end of the annealing furnace (3) is provided with a furnace front loading trolley (1) and a conveying roller (4). The length direction of the conveying roller (4) is perpendicular to the length direction of the annealing furnace (3) and spans the two feeding and holding chambers (15) and the annealing furnace (3). The furnace front loading trolley (1) is located on the side of the conveying roller (4) away from the annealing furnace (3) and is used to send the steel cylinder (17) on the conveying roller (4) to the feeding end of the annealing furnace (3).

10. The heat treatment equipment for a fully automatic stamping and drawing steel cylinder (17) billet annealing production line according to claim 8, characterized in that: It also includes a transition insulation box (5), a slow cooling furnace (8) and a cooling mechanism (9). The steel cylinder (17) coming out of the annealing furnace (3) passes through the transition insulation box (5), the slow cooling furnace (8) and the cooling mechanism (9) in sequence. The slow cooling furnace (8) is equipped with the stepping mechanism (10), the driving component (11) and the transmission component (16), and the stepping mechanism (10), the driving component (11) and the transmission component (16) in the slow cooling furnace (8) adopt the same structural layout as the annealing furnace (3).

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