A continuous annealing furnace and a continuous production method

Abstract

This invention relates to the field of annealing furnaces, specifically a continuous annealing furnace and a continuous production method. The furnace includes a base, with a lifting frame fixedly installed at the top. A bidirectional lead screw is rotatably mounted on the lifting frame via bearings. The bidirectional lead screw is threadedly connected to two sets of lifting blocks. One set of lifting blocks is fixedly connected to an annealing assembly, and the other set is fixedly connected to an auxiliary assembly. A fixing frame is fixedly installed at the top of the base, with a rotating rod, a fan shaft, and a stirring shaft rotatably connected to the fixing frame via bearings. When in use, driven by a motor, this invention not only ensures the heating effect of the metal material in the working box below the annealing chamber but also allows for the air-drying of the metal material in the working box above the cooling chamber after cooling. It also agitates the water in the cooling chamber, lowering its temperature and ensuring a cooling effect. Simultaneously, it causes the filter cloth to vibrate, accelerating the filtration speed.

Description

Technical Field

[0001] This invention relates to the field of annealing furnaces, specifically a continuous annealing furnace and a continuous production method thereon. Background Technology

[0002] An annealing furnace is a device used for heat treatment of metallic materials. Its main function is to heat and hold the metal at a high temperature for a certain period of time, followed by slow cooling, thereby eliminating internal stress, improving its microstructure, and ultimately enhancing its plasticity and toughness. Existing annealing furnaces are equipped with an adjustment mechanism. Starting a motor drives a threaded rod, which in turn moves an extension block, which in turn moves the annealing chamber downwards, bringing it into contact with a moving plate for heating and annealing the metal material on the moving plate. A moving mechanism allows starting a second motor, which drives a second threaded rod, which in turn moves the moving plate below the annealing chamber for loading and unloading the metal material. Rectangular slots and rectangular limit blocks restrict the movement of the metal material within the rectangular limit blocks, preventing it from moving within the moving plate. During the process, the aluminum tube roll rolls down, and the rectangular slots can improve the airtightness of the aluminum tube rolls during heating. After heating, the suction pump is started, which pressurizes the hot air in the annealing box into the heat preservation box, reducing the waste of heat in the annealing furnace. However, existing annealing furnaces usually use a cooling mechanism after the annealing work is completed. The water pump is started, and the water in the water tank is sprayed onto the heated metal material for cooling. The cooled water flows into the water collection tank from the water outlet for collection and recycling. However, after the cooling work is completed, the surface of the metal material will be wet, and an additional drying mechanism is needed to dry the cooled metal material. In addition, when the metal material is heated and annealed, the bottom of the metal material is attached to the moving plate, so the bottom of the metal material cannot be effectively heated and annealed like other parts. Therefore, we propose a continuous annealing furnace and a continuous production method. Summary of the Invention

[0003] The present invention aims to provide a continuous annealing furnace, comprising a base, a lifting frame fixedly mounted on the top of the base, a bidirectional lead screw rotatably mounted on the lifting frame via bearings, the bidirectional lead screw being threadedly connected to two sets of lifting blocks, one set of lifting blocks being fixedly connected to an annealing assembly, and the other set of lifting blocks being fixedly connected to an auxiliary assembly. A fixing frame is fixedly mounted on the top of the base, and a rotating rod, a fan shaft, and a stirring shaft are rotatably connected to the fixing frame via bearings. A set of bevel gears is fixedly connected to the rotating rod and the fan shaft respectively, and the two sets of bevel gears mesh with each other. The fan shaft is fixedly connected to the fan blades. A set of sprockets is fixedly installed on the outer wall of the rotating rod and the stirring shaft, respectively. Both sets of sprockets mesh with a chain. A motor is fixedly installed on the fixed frame. The drive end of the motor is fixedly connected to the stirring shaft. A rotating shaft and a rotating shaft are rotatably installed on the fixed frame through bearings. A set of sprockets is fixedly connected to the rotating shaft and the rotating shaft, respectively. Both sets of sprockets mesh with a chain. A set of bevel gears is fixedly connected to the outer wall of the rotating shaft and the stirring shaft, respectively. The two sets of bevel gears mesh with each other.

[0004] The auxiliary component includes an auxiliary plate, which is fixedly connected to a set of lifting blocks. Four sets of sliding rods slide through the inner side of the auxiliary plate. A movable plate is fixedly connected to the top of the four sets of sliding rods. Multiple sets of sealing rods are fixedly connected to the top of the movable plate. Four sets of springs are provided between the auxiliary plate and the movable plate. An auxiliary frame is fixedly connected to the auxiliary plate. The auxiliary frame is rotatably connected to a rotating rod and a rotating component via bearings. A set of bevel gears is fixedly connected to the rotating rod and the rotating component respectively. The two sets of bevel gears mesh with each other. An elliptical wheel is fixedly installed on the outer wall of the rotating rod. The outer side of the elliptical wheel slides against the top of the auxiliary plate and the bottom of the movable plate. The hexagonal rod at the lower end of the rotating component slides through a hexagonal groove opened on the inner side of the rotating shaft.

[0005] Preferably, a second motor is fixedly installed on the top of the lifting frame, and a bidirectional lead screw is fixedly connected to the drive end of the second motor. Two sets of guide rods are fixedly installed on the lifting frame, and both sets of guide rods slide through the inner side of the two sets of lifting blocks. A set of limiting rings is fixedly installed on the outer wall of each set of guide rods.

[0006] Preferably, the annealing assembly includes an annealing chamber, a set of lifting blocks is fixedly connected to the annealing chamber, an insulation box is fixedly installed on the top of the annealing chamber, an air intake pump and an air outlet pump are fixedly installed on the outer wall of the annealing chamber, the air intake end of the air intake pump is connected to the annealing chamber, the air outlet end of the air intake pump is connected to one end of pipe one, the other end of pipe one is connected to the insulation box, the air outlet end of the air outlet pump is connected to the annealing chamber, the air intake end of the air outlet pump is connected to one end of pipe two, the other end of pipe two is connected to the insulation box, and a set of solenoid valves is fixedly installed on both pipe one and pipe two.

[0007] Preferably, a fixed frame is fixedly installed at the top of the base, a servo motor is fixedly installed inside the fixed frame, a gear one is fixedly connected to the drive end of the servo motor, the gear one meshes with a gear two, the gear two is fixedly installed on the outer wall of the rotating column, the rotating column is rotatably connected to the fixed frame through a bearing, a rotating frame is fixedly connected to the top of the fixed frame, and four sets of working boxes are fixedly connected to the rotating frame.

[0008] Preferably, each of the working boxes has multiple sets of through holes evenly spaced, and each set of through holes on the working box corresponds to and matches the sealing rod.

[0009] Preferably, the opening at the lower end of the annealing box matches the upper end of the work box.

[0010] Preferably, the bottom of the rotating frame is fixedly equipped with multiple sets of casters, and the bottom of the casters movably fits against the top of the fixed frame.

[0011] Preferably: multiple sets of support columns are fixedly installed at the top of the base, a cooling box is fixedly installed at the top of the support columns, a fixing plate is fixedly installed at the top of the cooling box, a water pump is fixedly installed on the outer wall of the fixing plate, a water pump is connected to the water inlet of the water pump and the cooling box by a water pump pipe, a water outlet is connected to the water outlet of the water pump, the water outlet penetrates the inner side of the fixing plate, two sets of nozzles are connected to the water outlet, a drain pipe is connected to the bottom of the cooling box, and a valve is installed on the drain pipe.

[0012] Preferably, the stirring shaft is rotatably connected to the cooling box via a sealed bearing. Multiple stirring components are fixedly installed on the outer wall of the stirring shaft. Each stirring component is fixedly equipped with four sets of elastic heads. The elastic heads movably contact the bottom of the filter cloth. The filter cloth is fixedly installed at the bottom of the collection frame. The collection frame is slidably installed inside the cooling box. Four sets of fixing bolts are threadedly connected between the collection frame and the cooling box.

[0013] This invention also proposes a continuous production method for a continuous annealing furnace, characterized by the following specific steps:

[0014] S1. When in use, place the metal material in the four work boxes in sequence, start the servo motor to drive the rotating frame to rotate, and the rotation of the rotating frame will drive the four work boxes to rotate. Each time the servo motor is started, it controls the rotating frame to rotate 90 degrees, so that the four work boxes move in sequence to the bottom of the annealing box and the top of the cooling box.

[0015] S2. When the work box is moved directly below the annealing chamber, the second motor drives the annealing assembly to move down and the auxiliary assembly to move up, so that the upper end of the work box is inserted into the annealing chamber, and multiple sets of sealing rods move up and insert into the corresponding through holes in the work box. Then, the metal material in the work box can be heated by heating through the annealing chamber. During this process, the multiple sets of sealing rods move up and down continuously, which continuously lifts the metal material in the work box, preventing the bottom of the metal material from contacting the work box for a long time, thereby avoiding poor heating effect at the bottom of the metal material.

[0016] S3. When the working box is moved directly above the cooling tank, the water pump is started to draw water out of the cooling tank and spray it out from two sets of nozzles. The water sprayed from the two sets of nozzles will spray onto the metal material in the working box, thereby cooling the heated metal material. The cooled water will drip down from the through hole and into the collection frame above the filter cloth. When the water drips down after cooling the metal material, it will inevitably bring impurities and some oxides attached to the surface of the metal material into the collection frame. The filter cloth can filter the cooled water. The filtered water returns to the cooling tank. When the water cools the metal material, the water temperature will inevitably rise. When the water returns to the cooling tank, it will inevitably raise the temperature of the water in the cooling tank. At this time, the stirring shaft rotates and drives the stirring component to rotate. The rotation of the stirring component will continuously stir the water in the cooling tank, thereby accelerating the drop in water temperature in the cooling tank and ensuring the cooling effect. At the same time, the fan blades rotate to dry the cooled and damp metal material.

[0017] S4. After the metal material in the working box directly below the annealing box has been heated, start the suction pump to press the hot air in the annealing box into the heat preservation box. When a new working box moves to the bottom of the annealing box, start the exhaust pump to press the hot air in the heat preservation box back into the annealing box.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In use, the invention is driven by motor one to move the sealing rod up and down. This up-and-down movement of the sealing rod continuously lifts the metal material inside the working box, preventing the bottom of the metal material from prolonged contact with the working box and thus ensuring proper heating of the bottom of the metal material. Similarly, motor one also drives the stirring element to rotate, continuously agitating the water in the cooling tank, thus accelerating the temperature drop and ensuring effective cooling. Furthermore, the rotation of the stirring element causes the elastic head to rotate. During rotation, the elastic head contacts the bottom of the filter cloth, and upon contact, it slightly lifts the filter cloth upwards, thus... The filter cloth vibrates, accelerating the filtration speed. Similarly, driven by motor one, the fan blades rotate, drying the cooled, damp metal material. In use, this invention, driven by motor one, not only ensures the heating effect of the metal material in the working box below the annealing chamber, but also dries the cooled metal material in the working box above the cooling chamber. It also agitates the water in the cooling chamber, lowering its temperature and ensuring cooling efficiency. Simultaneously, the vibrating filter cloth accelerates the filtration speed. Multiple effects are achieved through the drive of a single motor one, reducing operating costs while improving work efficiency.

[0020] 2. The through hole opened on the working box in this invention provides space for the sealing rod to move upward during heating, and the sealing rod will block the through hole to prevent heat from overflowing from the through hole. It also provides space for cooling water to drip back into the cooling box during cooling, so that the water in the working box can drip back into the cooling box through the through hole to realize the recycling of water. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure from the perspective of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure from the second perspective of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure from the perspective of the present invention;

[0024] Figure 4 This is a schematic diagram of the auxiliary components;

[0025] Figure 5 Exploded view of the cooling box and collection box;

[0026] Figure 6 This is a partial structural diagram of the present invention;

[0027] Figure 7 for Figure 6 A diagram from another angle.

[0028] In the diagram: 1. Base; 2. Lifting frame; 3. Two-way lead screw; 4. Lifting block; 5. Annealing assembly; 501. Annealing box; 502. Insulation box; 503. Suction pump; 504. Exhaust pump; 505. Pipe 1; 506. Pipe 2; 6. Auxiliary components; 601. Auxiliary plate; 602. Slide rod; 603. Moving plate; 604. Sealing rod; 605. Spring; 606. Auxiliary frame; 607. Rotating rod 2; 608. Rotating component; 609. Bevel gear 3; 610. Elliptical wheel; 7. Fixed frame; 8. Rotating rod 1; 9. Fan shaft; 10. Bevel gear 1; 11. Fan blade; 12. Stirring shaft; 13. Sprocket 1; 14. Chain 1; 15. Motor 1; 16. Shaft 1; 17. Shaft 2; 18. Sprocket 2; 19. Chain 2; 20. Bevel Gear 2; 21. Motor 2; 22. Guide Rod; 23. Limiting Ring; 24. Fixing Frame; 25. Servo Motor; 26. Gear 1; 27. Gear 2; 28. Rotating Column; 29. ​​Rotating Frame; 30. Working Box; 31. Through Hole; 32. Caster Wheel; 33. Support Column; 34. Cooling Box; 35. Fixing Plate; 36. Water Pump; 37. Pump Pipe; 38. Discharge Pipe; 39. Nozzle; 40. Drain Pipe; 41. Mixing Component; 42. Elastic Head; 43. Filter Cloth; 44. Collection Frame. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 7This invention discloses a continuous annealing furnace, comprising a base 1, a lifting frame 2 fixedly mounted on the top of the base 1, a bidirectional lead screw 3 rotatably mounted on the lifting frame 2 via bearings, and two sets of lifting blocks 4 threadedly connected to the bidirectional lead screw 3. One set of lifting blocks 4 is fixedly connected to an annealing assembly 5, and the other set of lifting blocks 4 is fixedly connected to an auxiliary assembly 6. A fixing frame 7 is fixedly mounted on the top of the base 1, and a rotating rod 8, a fan shaft 9, and a stirring shaft 12 are rotatably connected to the fixing frame 7 via bearings. The rotating rod 8 and the fan shaft 9 are respectively fixedly connected to a set of bevel gears 10, and the two sets of bevel gears 10 mesh with each other. The fan shaft 9 is fixedly connected to... A fan blade 11, a set of sprockets 13 are fixedly installed on the outer wall of the rotating rod 8 and the stirring shaft 12 respectively, and both sets of sprockets 13 mesh with chains 14. A motor 15 is fixedly installed on the fixed frame 7, and the drive end of the motor 15 is fixedly connected to the stirring shaft 12. A rotating shaft 16 and a rotating shaft 17 are rotatably installed on the fixed frame 7 through bearings. A set of sprockets 18 are fixedly connected to the rotating shaft 16 and the rotating shaft 12 respectively, and both sets of sprockets 18 mesh with chains 19. A set of bevel gears 20 are fixedly connected to the outer wall of the rotating shaft 16 and the stirring shaft 12 respectively, and the two sets of bevel gears 20 mesh with each other.

[0031] The auxiliary component 6 includes an auxiliary plate 601, which is fixedly connected to a set of lifting blocks 4. Four sets of sliding rods 602 slide through the inner side of the auxiliary plate 601. The top ends of the four sets of sliding rods 602 are fixedly connected to a moving plate 603. The top ends of the moving plate 603 are fixedly connected to multiple sets of sealing rods 604. Four sets of springs 605 are provided between the auxiliary plate 601 and the moving plate 603. The auxiliary plate 601 is fixedly connected to an auxiliary frame 606. The auxiliary frame 606 is rotatably connected to a rotating rod 607 and a rotating component 608 via bearings. The rotating rod 607 and the rotating component 608 are respectively fixedly connected to a set of bevel gears 609. The two sets of bevel gears 609 mesh with each other. An elliptical wheel 610 is fixedly installed on the outer wall of the rotating rod 607. The outer side of the elliptical wheel 610 slides against the top of the auxiliary plate 601 and the bottom of the moving plate 603. The hexagonal rod at the lower end of the rotating component 608 is slidably connected to a hexagonal groove opened on the inner side of the rotating shaft 17.

[0032] A second motor 21 is fixedly installed on the top of the lifting frame 2. The drive end of the second motor 21 is fixedly connected to a bidirectional lead screw 3. Two sets of guide rods 22 are fixedly installed on the lifting frame 2. Both sets of guide rods 22 slide through the inner side of the two sets of lifting blocks 4. A set of limiting rings 23 are fixedly installed on the outer wall of each set of guide rods 22. When in use, the second motor 21 is started to drive the bidirectional lead screw 3 to rotate. The rotation of the bidirectional lead screw 3 will cause the two sets of lifting blocks 4 to move closer or further apart along the two sets of guide rods 22.

[0033] The annealing assembly 5 includes an annealing chamber 501, which is fixedly connected to a set of lifting blocks 4. A heat preservation box 502 is fixedly installed on the top of the annealing chamber 501. An air intake pump 503 and an air outlet pump 504 are fixedly installed on the outer wall of the annealing chamber 501. The air intake end of the air intake pump 503 is connected to the annealing chamber 501, and the air outlet end of the air intake pump 503 is connected to one end of pipe one 505. The other end of pipe one 505 is connected to the heat preservation box 502. The air outlet end of the air outlet pump 504 is connected to the annealing chamber 501, and the air intake end of the air outlet pump 504 is connected to one end of pipe two 506. The other end of pipe two 506 is connected to the heat preservation box 502. A set of solenoid valves is fixedly installed on both pipe one 505 and pipe two 506. When the working box 30 moves to the annealing chamber... When the metal material is directly below the annealing box 501, the starting motor 21 drives the annealing assembly 5 to move downward and the auxiliary assembly 6 to move upward, so that the upper end of the working box 30 is inserted into the annealing box 501, and multiple sets of sealing rods 604 move upward and insert into the corresponding through holes 31 in the working box 30. Then, the metal material inside the working box 30 can be heated by heating through the annealing box 501. After the metal material inside the working box 30 directly below the annealing box 501 has been heated, the suction pump 503 is started to press the hot air in the annealing box 501 into the heat preservation box 502. When a new working box 30 moves below the annealing box 501, the exhaust pump 504 is started to press the hot air in the heat preservation box 502 back into the annealing box 501. It should be noted that the annealing box 501 is equipped with heating elements for heating.

[0034] A fixed frame 24 is fixedly installed at the top of the base 1. A servo motor 25 is fixedly installed inside the fixed frame 24. The drive end of the servo motor 25 is fixedly connected to a gear 26. The gear 26 meshes with a gear 27. The gear 27 is fixedly installed on the outer wall of the rotating column 28. The rotating column 28 is rotatably connected to the fixed frame 24 through a bearing. A rotating frame 29 is fixedly connected to the top of the fixed frame 24. The rotating frame 29 is fixedly connected to four sets of working boxes 30. In use, starting the servo motor 25 drives the gear 26 to rotate. The rotation of the gear 26 drives the gear 27 to rotate. The rotation of the gear 27 drives the rotating column 28 to rotate. The rotation of the rotating column 28 drives the rotating frame 29 to rotate. That is, starting the servo motor 25 drives the rotating frame 29 to rotate. The rotation of the rotating frame 29 drives the four sets of working boxes 30 to rotate. Each time the servo motor 25 is started, it controls the rotating frame 29 to rotate 90 degrees, thereby causing the four sets of working boxes 30 to move sequentially to the area directly below the annealing box 501 and directly above the cooling box 34.

[0035] The working box 30 is evenly provided with multiple sets of through holes 31, and each set of through holes 31 on the working box 30 corresponds to and matches the sealing rod 604; to ensure that when the metal material inside the working box 30 is heated, the sealing rod 604 moves up and blocks the through hole 31, preventing heat from escaping from the through hole 31.

[0036] The opening at the lower end of the annealing box 501 matches the upper end of the work box 30; when the work box 30 moves directly below the annealing box 501, the downward movement of the annealing box 501 will cause the upper end of the work box 30 to be inserted into the annealing box 501.

[0037] Multiple sets of casters 32 are fixedly installed at the bottom of the rotating frame 29, and the bottom of the casters 32 movably fits against the top of the fixed frame 24; the casters 32 are provided so that the rotating frame 29 can rotate smoothly.

[0038] Multiple sets of support columns 33 are fixedly installed at the top of the base 1. A cooling box 34 is fixedly installed at the top of the support columns 33. A fixing plate 35 is fixedly installed at the top of the cooling box 34. A water pump 36 is fixedly installed on the outer wall of the fixing plate 35. A water inlet pipe 37 is connected between the water inlet of the water pump 36 and the cooling box 34. A water outlet pipe 38 is connected to the water outlet of the water pump 36. The water outlet pipe 38 passes through the inner side of the fixing plate 35. Two sets of nozzles 39 are connected to the water outlet pipe 38. A drain pipe 40 is connected to the bottom of the cooling box 34. A valve is installed on the drain pipe 40. When the working box 30 is moved directly above the cooling box 34, the water pump 36 is started to draw water out of the cooling box 34 and spray it out from the two sets of nozzles 39. The water sprayed from the two sets of nozzles 39 will spray onto the metal material inside the working box 30, thereby cooling the heated metal material.

[0039] The stirring shaft 12 is rotatably connected to the cooling box 34 via a sealed bearing. Multiple sets of stirring components 41 are fixedly installed on the outer wall of the stirring shaft 12. Each stirring component 41 has four sets of elastic heads 42 fixedly installed on it. The elastic heads 42 movably contact the bottom of the filter cloth 43. The filter cloth 43 is fixedly installed at the bottom of the collection frame 44. The collection frame 44 is slidably installed inside the cooling box 34. Four sets of fixing bolts are threadedly connected between the collection frame 44 and the cooling box 34. Cooled water drips down from the through hole 31 and into the collection frame 44, remaining above the filter cloth 43. The water then reacts with the metal material. When the water drips downwards after cooling, it inevitably carries impurities and oxides adhering to the surface of the metal material into the collection frame 44. The cooled water can be filtered through the filter cloth 43. The filtered water returns to the cooling tank 34. When the water cools the metal material, the water temperature inevitably rises. When the water returns to the cooling tank 34, it will inevitably raise the temperature of the water in the cooling tank 34. At this time, the stirring shaft 12 rotates, which drives the stirring element 41 to rotate. The rotation of the stirring element 41 will continuously stir the water in the cooling tank 34, thereby accelerating the drop in the water temperature in the cooling tank 34 and ensuring the cooling effect.

[0040] This invention also proposes a continuous production method for a continuous annealing furnace, characterized by the following specific steps:

[0041] S1. When in use, place the metal material in the four sets of working boxes 30 in sequence, start the servo motor 25 to drive the rotating frame 29 to rotate. The rotation of the rotating frame 29 will drive the four sets of working boxes 30 to rotate. Each time the servo motor 25 is started, it controls the rotating frame 29 to rotate 90 degrees, thereby causing the four sets of working boxes 30 to move in sequence to the bottom of the annealing box 501 and the top of the cooling box 34.

[0042] S2. When the working box 30 moves directly below the annealing chamber 501, the starting motor 21 drives the annealing assembly 5 to move down and the auxiliary assembly 6 to move up, so that the upper end of the working box 30 is inserted into the annealing chamber 501, and multiple sets of sealing rods 604 move up and insert into the corresponding through holes 31 opened in the working box 30. Then, the metal material inside the working box 30 can be heated by heating through the annealing chamber 501. During this process, the multiple sets of sealing rods 604 move up and down continuously. The continuous up and down movement of the multiple sets of sealing rods 604 will continuously lift the metal material inside the working box 30, avoiding the bottom of the metal material from contacting the working box 30 for a long time, thereby avoiding poor heating effect of the bottom of the metal material.

[0043] S3. When the working box 30 is moved directly above the cooling box 34, the water pump 36 is activated to extract water from the cooling box 34 and spray it out from the two sets of nozzles 39. The water sprayed from the two sets of nozzles 39 will spray onto the metal material inside the working box 30, thereby cooling the heated metal material. The cooled water will drip down from the through hole 31 and into the collection frame 44, above the filter cloth 43. When the water cools the metal material and drips down, it inevitably carries impurities and some oxides attached to the surface of the metal material into the collection frame 44, which are then filtered through the filter cloth. 43 can filter the cooled water and return it to the cooling tank 34. When the water cools the metal material, the water temperature will inevitably rise. When the water returns to the cooling tank 34, it will inevitably raise the temperature of the water in the cooling tank 34. At this time, the stirring shaft 12 rotates and drives the stirring component 41 to rotate. The rotation of the stirring component 41 will continuously stir the water in the cooling tank 34, thereby accelerating the drop in the water temperature in the cooling tank 34 and ensuring the cooling effect. At the same time, the fan blade 11 rotates to dry the damp metal material after cooling.

[0044] S4. After the metal material in the working box 30 directly below the annealing box 501 has been heated, the suction pump 503 is started to press the hot air in the annealing box 501 into the heat preservation box 502. When a new working box 30 moves below the annealing box 501, the exhaust pump 504 is started to press the hot air in the heat preservation box 502 back into the annealing box 501.

[0045] The working principle of this invention is as follows: In use, metal materials are placed sequentially into four sets of work boxes 30. The servo motor 25 is activated to drive the rotating frame 29 to rotate. The rotation of the rotating frame 29 drives the four sets of work boxes 30 to rotate. Each time the servo motor 25 is activated, it controls the rotating frame 29 to rotate 90 degrees, thereby moving the four sets of work boxes 30 sequentially to directly below the annealing chamber 501 and directly above the cooling chamber 34, thus enabling continuous production. It should be noted that the servo motor 25 employs a closed-loop control system, a high-precision encoder, digital signal processing, high response speed, and a robust mechanical structure, ensuring that the servo motor 25 can precisely drive the rotating frame 29 to rotate 90 degrees each time it is activated.

[0046] When the work box 30 moves directly below the annealing chamber 501, the start motor 21 drives the bidirectional lead screw 3 to rotate. The rotation of the bidirectional lead screw 3 causes the two sets of lifting blocks 4 to move closer to each other along the two sets of guide rods 22, thereby causing the annealing assembly 5 to move downward and the auxiliary assembly 6 to move upward, until the set of lifting blocks 4 fixedly connected to the annealing assembly 5 contacts the two sets of limit rings 23.

[0047] The upper end of the work box 30 is inserted into the annealing chamber 501, and multiple sets of sealing rods 604 move upward and are inserted into the corresponding through holes 31 opened in the work box 30. Then, the metal material inside the work box 30 can be heated by heating through the annealing chamber 501. When the auxiliary component 6 moves upward, the hexagonal rod at the lower end of the rotating part 608 will slide along the hexagonal groove opened on the inner side of the rotating shaft 2 17, and the hexagonal rod at the lower end of the rotating part 608 will not disengage from the hexagonal groove opened on the inner side of the rotating shaft 2 17.

[0048] During this process, the starting motor 15 drives the stirring shaft 12 to rotate. The rotation of the stirring shaft 12, driven by two sets of meshing bevel gears 20, drives the rotating shaft 16 to rotate. The rotation of the rotating shaft 16, driven by two sets of sprockets 18 and chains 19, drives the rotating shaft 17 to rotate. The rotation of the rotating shaft 17 drives the rotating component 608 to rotate. The rotation of the rotating component 608, driven by two sets of meshing bevel gears 609, drives the rotating rod 607 to rotate. The rotation of the rotating rod 607 drives the elliptical wheel 6... 10. Due to the special shape of the elliptical wheel 610, and the fact that the outer side of the elliptical wheel 610 slides against the top of the auxiliary plate 601 and the bottom of the moving plate 603, and under the elastic action of the spring 605, the rotation of the elliptical wheel 610 will cause the moving plate 603 to move up and down continuously. The up and down movement of the moving plate 603 will drive the sealing rod 604 to move up and down. The up and down movement of the sealing rod will continuously push up the metal material in the working box 2, preventing the bottom of the metal material from contacting the working box 30 for a long time, thereby avoiding poor heating effect of the bottom of the metal material.

[0049] After the heating process is completed, start motor 21 to move the annealing assembly 5 upward and the auxiliary assembly 6 downward, so that the heating work box 30 can rotate and move.

[0050] When the heated working box 30 is moved directly above the cooling box 34, the water pump 36 is activated to draw water from the cooling box 34 and spray it out from the two sets of nozzles 39. The water sprayed from the two sets of nozzles 39 will spray onto the metal material inside the working box 30, thereby cooling the heated metal material. After a certain amount of water has been sprayed out, the water pump 36 stops working, and the cooled water will drip down from the through hole 31 and into the collection frame 44, above the filter cloth 43. When the water cools the metal material and drips down, it inevitably carries impurities and some oxides attached to the surface of the metal material into the collection frame 44. The cooled water can be filtered through the filter cloth 43. The filtered water returns to the cooling box 34. When the water cools the metal material, the water temperature inevitably rises. When the water returns to the cooling box 34, it inevitably raises the temperature of the water inside the cooling box 34. At this time, the stirring shaft... The rotation of the stirring shaft 12 drives the stirring component 41 to rotate, which continuously agitates the water in the cooling tank 34, thereby accelerating the temperature drop of the water in the cooling tank 34 and ensuring the cooling effect. The rotation of the stirring component 41 also drives the elastic head 42 to rotate. During the rotation, the elastic head 42 contacts the bottom of the filter cloth 43 and slightly lifts the filter cloth 43 (the filter cloth 43 is made of nylon and has a certain degree of elasticity) upward, causing the filter cloth 43 to shake and speed up the filtration. At the same time, the rotation of the stirring shaft 12, driven by the two sets of sprockets 13 and chains 14, drives the rotating rod 8 to rotate. The rotation of the rotating rod 8, driven by the two sets of meshing bevel gears 10, drives the fan shaft 9 to rotate. The rotation of the fan shaft 9 drives the fan blades 11 to rotate, which can dry the damp metal material after cooling.

[0051] It should be noted that after the metal material in the working box 30 directly below the annealing chamber 501 has been heated, the suction pump 503 is started to press the hot air in the annealing chamber 501 into the heat preservation box 502. When a new working box 30 moves under the annealing chamber 501, the exhaust pump 504 is started to press the hot air in the heat preservation box 502 back into the annealing chamber 501, thereby reducing the waste of heat.

[0052] During the use of this invention, while the annealing component 5 heats the metal material in a set of work boxes 30, the heated work boxes 30 are placed directly above the cooling box 34 for cooling and air drying.

[0053] It should be noted that this invention requires an external power supply to provide power for the operation of servo motor 25, motor 21, water pump 36, motor 15, suction pump 503, and exhaust pump 504. This invention also requires an external controller to control the operation of servo motor 25, motor 21, water pump 36, motor 15, suction pump 503, and exhaust pump 504.

[0054] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A continuous annealing furnace, comprising a base (1), characterized in that: A lifting frame (2) is fixedly installed on the top of the base (1). A double-acting screw (3) is rotatably installed on the lifting frame (2) via bearings. The double-acting screw (3) is threadedly connected to two sets of lifting blocks (4). One set of lifting blocks (4) is fixedly connected to an annealing assembly (5), and the other set of lifting blocks (4) is fixedly connected to an auxiliary assembly (6). A fixing frame (7) is fixedly installed on the top of the base (1). A rotating rod (8), a fan shaft (9), and a stirring shaft (12) are rotatably connected on the fixing frame (7) via bearings. A set of bevel gears (10) is fixedly connected to the rotating rod (8) and the fan shaft (9). The two sets of bevel gears (10) mesh with each other. The fan shaft (9) is fixedly connected to a fan blade (11). A set of sprockets (13) is fixedly installed on the outer wall of the rotating rod (8) and the stirring shaft (12). Both sets of sprockets (13) mesh with chain (14). A motor (15) is fixedly installed on the fixed frame (7). The driving end of the motor (15) is fixedly connected to the stirring shaft (12). A rotating shaft (16) and a rotating shaft (17) are rotatably installed on the fixed frame (7) through bearings. A set of sprockets (18) is fixedly connected to the rotating shaft (16) and the rotating shaft (17). Both sets of sprockets (18) mesh with chain (19). A set of bevel gears (20) is fixedly connected to the outer wall of the rotating shaft (16) and the stirring shaft (12). The two sets of bevel gears (20) mesh with each other. The auxiliary component (6) includes an auxiliary plate (601), which is fixedly connected to a set of lifting blocks (4). Four sets of sliding rods (602) slide through the inner side of the auxiliary plate (601). A movable plate (603) is fixedly connected to the top of the four sets of sliding rods (602). Multiple sets of sealing rods (604) are fixedly connected to the top of the movable plate (603). Four sets of springs (605) are provided between the auxiliary plate (601) and the movable plate (603). An auxiliary frame (606) is fixedly connected to the auxiliary plate (601). (606) A rotating rod (607) and a rotating component (608) are rotatably connected by a bearing. The rotating rod (607) and the rotating component (608) are respectively fixedly connected to a set of bevel gears (609). The two sets of bevel gears (609) mesh with each other. An elliptical wheel (610) is fixedly installed on the outer wall of the rotating rod (607). The outer side of the elliptical wheel (610) slides against the top of the auxiliary plate (601) and the bottom of the moving plate (603). The hexagonal rod at the lower end of the rotating component (608) is slidably connected to the hexagonal groove opened on the inner side of the rotating shaft (17). A fixed frame (24) is fixedly installed at the top of the base (1). A servo motor (25) is fixedly installed inside the fixed frame (24). The drive end of the servo motor (25) is fixedly connected to a gear one (26). The gear one (26) meshes with a gear two (27). The gear two (27) is fixedly installed on the outer wall of the rotating column (28). The rotating column (28) is rotatably connected to the fixed frame (24) through a bearing. A rotating frame (29) is fixedly connected at the top of the fixed frame (24). The rotating frame (29) is fixedly connected to four sets of work boxes (30). The working box (30) is evenly provided with multiple sets of through holes (31), and each set of through holes (31) on the working box (30) corresponds to and matches the sealing rod (604).

2. The continuous annealing furnace according to claim 1, characterized in that: The top of the lifting frame (2) is fixedly installed with a motor (21), and the drive end of the motor (21) is fixedly connected to a two-way lead screw (3). Two sets of guide rods (22) are fixedly installed on the lifting frame (2). Both sets of guide rods (22) slide through the inner side of the two sets of lifting blocks (4). A set of limiting rings (23) are fixedly installed on the outer wall of the two sets of guide rods (22).

3. A continuous annealing furnace according to claim 2, characterized in that: The annealing assembly (5) includes an annealing chamber (501), which is fixedly connected to a set of lifting blocks (4). A heat preservation box (502) is fixedly installed on the top of the annealing chamber (501). An air intake pump (503) and an air outlet pump (504) are fixedly installed on the outer wall of the annealing chamber (501). The air intake end of the air intake pump (503) is connected to the annealing chamber (501), and the air outlet end of the air intake pump (503) is connected to... One end of pipe one (505) is connected to the insulation box (502), the other end of pipe one (505) is connected to the annealing box (501), the air outlet of the air pump (504) is connected to the annealing box (501), the air inlet of the air pump (504) is connected to one end of pipe two (506), the other end of pipe two (506) is connected to the insulation box (502), and a set of solenoid valves are fixedly installed on both pipe one (505) and pipe two (506).

4. A continuous annealing furnace according to claim 3, characterized in that: The opening at the lower end of the annealing box (501) matches the upper end of the work box (30).

5. A continuous annealing furnace according to claim 4, characterized in that: The bottom of the rotating frame (29) is fixedly installed with multiple sets of casters (32), and the bottom of the casters (32) is movably attached to the top of the fixed frame (24).

6. A continuous annealing furnace according to claim 5, characterized in that: The base (1) has multiple sets of support columns (33) fixedly installed at the top. A cooling box (34) is fixedly installed at the top of the support columns (33). A fixing plate (35) is fixedly installed at the top of the cooling box (34). A water pump (36) is fixedly installed on the outer wall of the fixing plate (35). A water pump (37) is connected between the water inlet of the water pump (36) and the cooling box (34). A water outlet pipe (38) is connected to the water outlet of the water pump (36). The water outlet pipe (38) passes through the inner side of the fixing plate (35). Two sets of nozzles (39) are connected to the water outlet pipe (38). A drain pipe (40) is connected to the bottom of the cooling box (34). A valve is installed on the drain pipe (40).

7. A continuous annealing furnace according to claim 6, characterized in that: The stirring shaft (12) is rotatably connected to the cooling box (34) through a sealed bearing. Multiple stirring components (41) are fixedly installed on the outer wall of the stirring shaft (12). Four sets of elastic heads (42) are fixedly installed on each stirring component (41). The elastic heads (42) are in contact with the bottom of the filter cloth (43). The filter cloth (43) is fixedly installed at the bottom of the collection frame (44). The collection frame (44) is slidably installed in the cooling box (34). Four sets of fixing bolts are threadedly connected between the collection frame (44) and the cooling box (34).

8. The continuous production method of a continuous annealing furnace according to claim 7, characterized in that, The specific steps include the following: S1. When in use, place the metal material in the four work boxes (30) in sequence, start the servo motor (25) to drive the rotating frame (29) to rotate. The rotation of the rotating frame (29) will drive the four work boxes (30) to rotate. Each time the servo motor (25) is started, it controls the rotating frame (29) to rotate 90 degrees, so that the four work boxes (30) move in sequence to the bottom of the annealing box (501) and the top of the cooling box (34). S2. When the work box (30) moves directly below the annealing box (501), the second motor (21) is started to drive the annealing assembly (5) to move down and the auxiliary assembly (6) to move up, so that the upper end of the work box (30) is inserted into the annealing box (501), and multiple sets of sealing rods (604) move up and insert into the corresponding through holes (31) opened in the work box (30). Then, the metal material in the work box (30) can be heated by heating through the annealing box (501). During this process, multiple sets of sealing rods (604) move up and down continuously. The continuous up and down movement of multiple sets of sealing rods (604) will continuously push up the metal material in the work box (30), avoiding the bottom of the metal material from contacting the work box (30) for a long time, thereby avoiding poor heating effect of the bottom of the metal material. S3. When the working box (30) is moved directly above the cooling box (34), the water pump (36) is started to draw water out of the cooling box (34) and spray it out from the two sets of nozzles (39). The water sprayed from the two sets of nozzles (39) will spray onto the metal material in the working box (30), thereby cooling the heated metal material. The cooled water will drip down from the through hole (31) and into the collection frame (44) above the filter cloth (43). When the water cools the metal material and drips down, it will inevitably bring impurities and some oxides attached to the surface of the metal material into the collection frame (44). The cloth (43) can filter the cooled water, and the filtered water returns to the cooling tank (34). When the water cools the metal material, the water temperature will inevitably rise. When the water returns to the cooling tank (34), it will inevitably provide the temperature of the water in the cooling tank (34). At this time, the stirring shaft (12) rotates and drives the stirring component (41) to rotate. The rotation of the stirring component (41) will continuously stir the water in the cooling tank (34), thereby accelerating the drop in the water temperature in the cooling tank (34) and ensuring the cooling effect. At the same time, the fan blades (11) rotate, which can air dry the damp metal material after cooling. S4. After the metal material in the work box (30) directly below the annealing box (501) has been heated, start the suction pump (503) to press the hot air in the annealing box (501) into the heat preservation box (502). When a new work box (30) moves below the annealing box (501), start the exhaust pump (504) to press the hot air in the heat preservation box (502) back into the annealing box (501).

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