Vacuum annealing device for steel plate machining

Abstract

The invention discloses a vacuum annealing device for steel plate machining, and belongs to the technical field of steel plate machining, the vacuum annealing device comprises a working bottom plate, an annealing furnace is mounted above the working bottom plate, a vacuum pump is arranged on one side of the working bottom plate, a water storage tank is arranged on the other side of the working bottom plate, and a sliding rail is connected to the working bottom plate. According to the steel plate placing device, a worker can place steel plates outside the annealing furnace through the placing frame, the operation space is enlarged, the worker can place the steel plates conveniently, the working efficiency is improved, the placing frame is driven to move through a threaded lead screw, the manual carrying process is omitted, and the labor intensity of the worker is reduced. When the threaded lead screw is reversely rotated through the motor to move the placing frame out of the annealing furnace, the torsional springs on the two sides of the supporting frame can drive the supporting frame to rotate, so that the rolling wheels can make contact with the working bottom plate, the placing frame is assisted to move through rolling of the rolling wheels, the placing frame is supported through the supporting frame, the placing frame is prevented from toppling over, and therefore workers can conveniently place the steel plates.

Description

Technical Field

[0001] The invention belongs to the technical field of steel plate processing, in particular to a vacuum annealing device for steel plate processing. Background Art

[0002] Steel plate is a flat steel material that is poured with molten steel and pressed after cooling. The steel plate is flat and rectangular and can be directly rolled or cut from a wide steel strip. Steel plates can be divided into thin steel plates, thick steel plates and extra thick steel plates according to thickness, and can be divided into hot rolling and cold rolling according to the rolling method. At present, steel plates need to be heat treated during production and processing, such as annealing, hardening, quenching or tempering, in order to change the physical structure of the metal and make the metal have a certain toughness.

[0003] At present, vacuum annealing furnaces are usually used for annealing steel plates. The traditional annealing operation requires workers to use separate handling tools to move the steel plates to the annealing furnace for stacking before annealing can be carried out. However, due to the narrow space inside the annealing furnace, operation is difficult, and long-term manual handling and placement will also lead to increased worker fatigue, resulting in reduced annealing efficiency. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a vacuum annealing device for steel plate processing, which solves the problem that the internal space of the annealing furnace is narrow, the operation is difficult, and the long-term manual handling and placement will also cause the workers' fatigue level to increase, thereby reducing the annealing processing efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a vacuum annealing device for steel plate processing, comprising a working base plate, an annealing furnace is installed above the working base plate, a vacuum pump is arranged on one side of the working base plate, a water storage tank is arranged on the other side of the working base plate, a slide rail is connected to the working base plate, a motor is installed on the working base plate, a main synchronous wheel is installed on the output shaft of the motor, a synchronous belt is installed on the main synchronous wheel, the main synchronous wheel is connected to a secondary synchronous wheel through a synchronous belt, a threaded screw is connected to the main synchronous wheel and the secondary synchronous wheel, and a moving frame is installed on the threaded screw;

[0006] A threaded sleeve is installed on the movable frame, a sealed furnace cover is connected to the movable frame, a threaded rod is threadedly connected to the sealed furnace cover, one end of the threaded rod is connected to a rotating wheel, the other end of the threaded rod is connected to a disc, a plurality of slide grooves are opened on the disc, a slide rod is slidably connected in the slide groove, one end of the slide rod is connected to a plug rod, a placement rack is fixedly connected to one side of the sealed furnace cover, and an adjusting horizontal plate is connected to the placement rack;

[0007] A support frame is rotatably connected to the lower part of the display rack, a roller is rotatably mounted on the support frame, a ventilation hood is mounted on one side of the annealing furnace, a heating plate is mounted on the inner wall of the annealing furnace, a cooling pipe is arranged between the outer wall and the inner wall of the annealing furnace, a liquid inlet pipe is connected to one side of the cooling pipe, and a liquid outlet pipe is connected to the other side of the cooling pipe.

[0008] As a further solution of the present invention: a liquid pump is installed on one side of the water tank through a pipeline, two liquid exchange pipes are installed on the water tank, and the two liquid exchange pipes are distributed up and down, one end of the liquid inlet pipe is connected to the liquid pump, and the liquid outlet pipe is connected to the water tank.

[0009] As a further solution of the present invention: a ventilation pipe is connected to the ventilation hood, one end of the ventilation pipe is connected to the vacuum pump, the threaded screw is rotatably connected to the slide rail, the threaded sleeve is threadedly matched with the threaded screw, and the movable frame slides in the slide rail.

[0010] As a further solution of the present invention: the sealed furnace cover is hollow in design and one side is in contact with the inner wall of the annealing furnace, the disc slides in the sealed furnace cover, and the slide groove is arc-shaped in design.

[0011] As a further solution of the present invention: torsion springs are connected on both sides of the support frame, one end of the torsion spring is connected to the placement frame, a platform frame is arranged inside the annealing furnace, the side of the placement frame away from the sealing furnace cover is in contact with the platform frame in the annealing furnace, and the roller is in rolling contact with the top of the working bottom plate.

[0012] As a further solution of the present invention: a first through hole is opened on the adjusting horizontal plate, a placement plate is slidably connected between the two adjusting horizontal plates, second through holes are opened on both sides of the placement plate, the first through hole and the second through hole are of the same size and are plugged with pins.

[0013] As a further solution of the present invention: a plurality of guide grooves are provided on the sealed furnace cover, and there are three guide grooves and three insertion rods in total and they are all symmetrical about the center of the disk, and the insertion rods slide in the guide grooves.

[0014] As a further solution of the present invention: a plug hole is provided on the annealing furnace, a plurality of fixing holes are provided on both sides of the working bottom plate, and the plug rod is plugged into the plug hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by arranging a motor, a main synchronous wheel, a secondary synchronous wheel, a synchronous belt, a threaded screw, a movable frame, a threaded sleeve, a placing frame, a support frame, a roller and a torsion spring, after the staff places the steel plate on the placing frame, the main synchronous wheel is rotated by starting the motor, and the main synchronous wheel can drive the secondary synchronous wheel to rotate by using the synchronous belt, so that the two threaded screws can rotate synchronously, and the rotation of the threaded screw enables the movable frame to drive the sealed furnace cover to move through the threaded cooperation of the threaded sleeve and the threaded screw, so that the roller rolls on the working bottom plate, so that the placing frame enters the annealing furnace, and when entering, the support frame will be pushed by the platform frame inside the annealing furnace, so that the rotation and the placing frame occur. The bottom of the support frame is contacted with the support frame, and the torsion springs on both sides are twisted at the same time. The staff can place the steel plates outside the annealing furnace through the placement rack, which expands the operating space, facilitates the staff to place the steel plates, and improves the work efficiency. The placement rack is driven to move by the threaded screw, which saves the process of manual handling and is more labor-saving. When the threaded screw is rotated in the opposite direction by the motor to move the placement rack out of the annealing furnace, the torsion springs on both sides of the support frame will rotate, thereby driving the support frame to rotate, so that the rollers can contact the top of the working bottom plate, thereby assisting the placement rack to move through the rolling of the rollers, and using the support frame to support the placement rack to prevent the placement rack from tipping over, thereby facilitating the staff to place the steel plates.

[0017] 2. In the present invention, by arranging a rotating wheel, a threaded rod, a disc, a slide groove, a sliding rod, an insertion rod, a guide groove, a jack, a vacuum pump, a ventilation pipe, a liquid pump, a cooling pipe and a heating plate, when the placing rack is inserted into the annealing furnace through the threaded screw, the sealed furnace cover will also be inserted into the annealing furnace together. After that, the staff rotates the threaded rod by twisting the rotating wheel, so that the threaded rod can push the disc, causing the disc to move inside the sealed furnace cover, and when the threaded rod rotates, it will also drive the disc to rotate. As the disc rotates, the arc-shaped slide groove will push the sliding rod, causing the sliding rod to slide in the slide groove and drive the insertion rod, so that the insertion rod can move along the The guide groove is moved and inserted into the socket to fix the sealing furnace cover, so that the sealing furnace cover can be firmly fixed on the annealing furnace to seal the annealing furnace. When working, the vacuum pump will extract the air in the annealing furnace through the ventilation pipe, and the heating plate will gradually heat the steel plate in the annealing furnace. Later, when cooling, the liquid pump will extract the cooling water in the water tank through the pipeline, and transport it to the cooling pipe by the liquid inlet pipe. The cooling water flowing in the cooling pipe will absorb the heat inside the annealing furnace, and the cooling water after absorbing the heat will be discharged into the water tank by the liquid outlet pipe, thereby accelerating the heat dissipation efficiency in the annealing furnace and improving the annealing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the working bottom plate and the annealing furnace of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the sealed furnace cover of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the display rack of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the support frame of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the cooling pipe of the present invention;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of adjusting the horizontal plate and the placement plate of the present invention;

[0025] In the figure: 1. working base plate; 2. annealing furnace; 3. vacuum pump; 4. water storage tank; 5. slide rail; 6. motor; 7. main synchronous wheel; 8. synchronous belt; 9. auxiliary synchronous wheel; 10. threaded screw; 11. moving frame; 12. threaded sleeve; 13. sealing furnace cover; 14. threaded rod; 15. rotating wheel; 16. disc; 17. slide groove; 18. slide rod; 19. plug rod; 20. placing rack; 21. adjusting horizontal plate; 22. supporting frame; 23. roller; 24. ventilation hood; 25. heating plate; 26. cooling pipe; 27. liquid inlet pipe; 28. liquid outlet pipe; 29. ​​liquid pump; 30. liquid exchange pipe; 31. ventilation pipe; 32. torsion spring; 33. first through hole; 34. placing plate; 35. second through hole; 36. latch; 37. guide groove; 38. plug hole; 39. fixing hole. DETAILED DESCRIPTION

[0026] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0027] like Figure 1-7As shown, the present invention provides a technical solution: a vacuum annealing device for steel plate processing, comprising a working base plate 1, an annealing furnace 2 is installed above the working base plate 1, a vacuum pump 3 is arranged on one side of the working base plate 1, a motor 6 is installed on the working base plate 1, a main synchronous wheel 7 is installed on the output shaft of the motor 6, a synchronous belt 8 is installed on the main synchronous wheel 7, the main synchronous wheel 7 is connected to a secondary synchronous wheel 9 through the synchronous belt 8, a threaded screw 10 is connected to the main synchronous wheel 7 and the secondary synchronous wheel 9, a moving frame 11 is installed on the threaded screw 10, a slide rail 5 is connected to the working base plate 1, the threaded screw 10 is rotatably connected to the slide rail 5, a threaded sleeve 12 is installed on the moving frame 11, the threaded sleeve 12 is threadedly matched with the threaded screw 10, and the moving frame 11 slides in the slide rail 5. When working, the vacuum pump 3 can extract the air inside the annealing furnace 2, so as to maintain the vacuum state inside the annealing furnace 2, and the two threaded screws 10 can rotate synchronously by utilizing the cooperation of the motor 6, the main synchronous wheel 7, the synchronous belt 8 and the auxiliary synchronous wheel 9. Through the synchronous rotation of the two threaded screws 10, the moving frame 11 can move smoothly along the threaded screws 10.

[0028] The movable frame 11 is connected to a sealed furnace cover 13, a threaded rod 14 is threadedly connected to the sealed furnace cover 13, a rotating wheel 15 is connected to one end of the threaded rod 14, and a disc 16 is connected to the other end of the threaded rod 14. A plurality of slide grooves 17 are provided on the disc 16; the sealed furnace cover 13 is hollow in design and one side is in contact with the inner wall of the annealing furnace 2, the disc 16 slides in the sealed furnace cover 13, the slide groove 17 is arc-shaped, a slide rod 18 is slidably connected in the slide groove 17, and a plug rod 19 is connected to one end of the slide rod 18, a socket 38 is provided on the annealing furnace 2, and a plurality of fixed slots 17 are provided on both sides of the working bottom plate 1 Hole 39, the plug rod 19 is plugged into the socket 38; a plurality of guide grooves 37 are provided on the sealed furnace cover 13, and there are three guide grooves 37 and the plug rod 19, and they are all symmetrical with the center of the disk 16. The plug rod 19 slides in the guide groove 37. When the plug rod 19 moves along the guide groove 37, the guide groove 37 can guide and limit the movement of the plug rod 19 to prevent the plug rod 19 from accidentally tilting during movement, so that the plug rod 19 can be smoothly inserted into the socket 38, and the joint insertion of multiple plug rods 19 can improve the fixing effect and improve the stability of the sealing furnace cover 13.

[0029] When the threaded rod 14 rotates, the disc 16 can move in the sealed furnace cover 13, and the design of one side of the sealed furnace cover 13 fitting against the inner wall of the annealing furnace 2 enables the sealed furnace cover 13 to seal the annealing furnace 2, thereby maintaining the vacuum environment inside the annealing furnace 2, and one end of the arc-shaped slide groove 17 gradually approaches the center of the disc 16, and the multiple slide grooves 17 are radial as a whole, so that when the threaded rod 14 drives the disc 16 to rotate, the arc-shaped slide groove 17 can push the slide rod 18, prompting the slide rod 18 to drive the insertion rod 19 to move along the guide groove 37, thereby completing the fixing work of the sealed furnace cover 13.

[0030] The staff can screw bolts into the fixing holes 39 on both sides of the working bottom plate 1 to fix the working bottom plate 1 on the ground, thereby preventing the working bottom plate 1 from sliding when the annealing device is working, thereby improving the stability of the operation. By plugging the plug rod 19 into the plug hole 38, the sealing furnace cover 13 can be fixed on the annealing furnace 2 to prevent the movement of the sealing furnace cover 13 from affecting the sealing effect.

[0031] A placing rack 20 is fixedly connected to one side of the sealed furnace cover 13, and an adjusting horizontal plate 21 is connected to the placing rack 20. A first through hole 33 is provided on the adjusting horizontal plate 21. A placing plate 34 is slidably connected between the two adjusting horizontal plates 21. Second through holes 35 are provided on both sides of the placing plates 34. The first through hole 33 and the second through hole 35 are of the same size and are plugged with latches 36. By pulling out the latches 36, the two sides of the placing plates 34 can slide in the adjusting horizontal plate 21, so that the first through hole 33 and the second through hole 35 are aligned with each other, and then the latches 36 are inserted into the first through hole 33 and the second through hole 35, so as to fix the position of the placing plates 34 on the adjusting horizontal plate 21, so that steels of different sizes can be placed on multiple placing plates 34, thereby improving applicability, simplifying operation, and improving adjustment efficiency. The multiple adjustment horizontal plates 21 on the placement rack 20 are distributed in layers, so that the staff can place the steel plates in multiple layers, which increases the number of placed steel plates while reducing the contact between the steel plates, thereby improving the efficiency of the steel plate annealing process.

[0032] A support frame 22 is rotatably connected to the lower part of the placing frame 20, and a roller 23 is rotatably installed on the supporting frame 22. Torsion springs 32 are connected to both sides of the supporting frame 22, and one end of the torsion spring 32 is connected to the placing frame 20. A platform frame is arranged inside the annealing furnace 2, and the side of the placing frame 20 away from the sealing furnace cover 13 contacts the platform frame inside the annealing furnace 2. The roller 23 is in rolling contact with the top of the working bottom plate 1. The roller 23 is made of metal. Therefore, when the sealing furnace cover 13 is driven by the threaded screw 10 to move the placing rack 20, the roller 23 will roll on the working bottom plate 1, so that the roller 23 is used to assist the movement of the placing rack 20, so that the placing rack 20 can move smoothly. When the placing rack 20 enters the annealing furnace 2, the support frame 22 will be pushed by the surface wall or the internal platform frame of the annealing furnace 2, causing the support frame 22 to rotate and twist the torsion spring 32. Therefore, when the placing rack 20 is pulled out, the torsion spring 32 rotates to drive the supporting frame 22 to rotate, so that the roller 23 contacts the working bottom plate 1 again, and one side of the placing rack 20 is always in contact with the platform frame in the annealing furnace 2, so that the platform frame in the annealing furnace 2 can cooperate with the support frame 22 to support the placing rack 20, so as to prevent the placing rack 20 from tipping over.

[0033] A ventilation hood 24 is installed on one side of the annealing furnace 2, and a ventilation pipe 31 is connected to the ventilation hood 24, one end of the ventilation pipe 31 is connected to the vacuum pump 3, a heating plate 25 is installed on the inner wall of the annealing furnace 2, a cooling pipe 26 is arranged between the outer wall and the inner wall of the annealing furnace 2, one side of the cooling pipe 26 is connected to a liquid inlet pipe 27, and the other side of the cooling pipe 26 is connected to a liquid outlet pipe 28, a water storage tank 4 is arranged on one side of the working bottom plate 1, a liquid pump 29 is installed on one side of the water storage tank 4 through a pipeline, and two liquid exchange pipes 30 are installed on the water storage tank 4, and the two liquid exchange pipes 30 are distributed up and down. One end of the liquid inlet pipe 27 is connected to the liquid pump 29, and the liquid outlet pipe 28 is connected to the water tank 4. The worker connects the water pipe assembly to the two liquid exchange pipes 30 on one side of the water tank 4, so that the upper liquid exchange pipe 30 can fill the water tank 4 with water, and the lower liquid exchange pipe 30 can discharge the cooling water in the water tank 4, thereby completing the replacement of the cooling water inside the water tank 4, avoiding the increase in cooling water temperature due to long-term use and affecting the cooling effect, and through the cooling pipe 26, the cooling water can evenly absorb the heat on the annealing furnace 2 when flowing in the cooling pipe 26, thereby improving the cooling efficiency.

[0034] The working principle of the present invention is:

[0035] Before placing the steel plates, the staff can pull out the pins 36 in the first through hole 33 and the second through hole 35 to make the two sides of the placement plate 34 slide in the adjustment cross plate 21, and then re-insert the pins 36 into the first through hole 33 and the second through hole 35 to fix the placement plate 34, thereby adjusting the distance between the multiple placement plates 34, so that steel plates of different sizes can be placed on the placement rack 20, and then start the motor 6 to rotate the main synchronous wheel 7, so that the main synchronous wheel 7 drives the auxiliary synchronous wheel 9 to rotate through the synchronous belt 8, thereby prompting the two threaded screws 10 to rotate synchronously, and the rotation of the threaded screw 10 enables the movable rack 11 to drive the sealed furnace cover 13 to move through the threaded cooperation between the threaded sleeve 12 and the threaded screw 10;

[0036] At this time, the roller 23 will roll on the working bottom plate 1, thereby assisting the placement rack 20 to move, so that the placement rack 20 can be smoothly moved into the annealing furnace 2, and when the placement rack 20 enters the annealing furnace 2, the support frame 22 will be against the platform frame inside the annealing furnace 2, so that it is pushed by the platform frame inside the annealing furnace 2, causing the support frame 22 to rotate and contact the bottom of the placement rack 20, and at the same time, the torsion springs 32 on both sides of the support frame 22 will be twisted, and the placement rack 20 allows the staff to place the steel plates outside the annealing furnace 2, thereby expanding the operating space to facilitate the staff to work, and when the placement rack 20 enters the annealing furnace 2 through the threaded screw 10, the sealing furnace cover 13 will also be inserted into the annealing furnace 2 together;

[0037] Then the staff rotates the threaded rod 14 through the rotating wheel 15, so that the threaded rod 14 can push the disc 16, causing the disc 16 to move inside the sealed furnace cover 13, and at the same time the threaded rod 14 will also drive the disc 16 to rotate, and as the disc 16 rotates, the arc-shaped slide groove 17 will push the slide rod 18, causing the slide rod 18 to slide in the slide groove 17 and drive the insertion rod 19, so that the insertion rod 19 moves along the guide groove 37 until it is inserted into the insertion hole 38, thereby fixing the sealed furnace cover 13 on the annealing furnace 2 to seal the annealing furnace 2, and then during operation, the vacuum pump 3 will extract the air in the annealing furnace 2 through the ventilation pipe 31, causing the inside of the annealing furnace 2 to be in a vacuum environment, and then the heating plate 25 will heat the placed steel;

[0038] During cooling, the liquid pump 29 will extract the cooling water in the water tank 4 and transport it to the cooling pipe 26 through the liquid inlet pipe 27. The cooling water flowing in the cooling pipe 26 will absorb the heat inside the annealing furnace 2, thereby accelerating the heat dissipation efficiency in the annealing furnace 2 and improving the annealing efficiency. Finally, the cooling water after absorbing the heat is discharged into the water tank 4 through the liquid outlet pipe 28, and the staff completes the water injection and drainage work respectively through the two liquid exchange pipes 30, so as to replace the cooling water in the water tank 4 in time.

[0039] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A vacuum annealing device for steel plate processing, comprising a working base plate (1), characterized in that: An annealing furnace (2) is installed above the working base plate (1), a vacuum pump (3) is provided on one side of the working base plate (1), a water storage tank (4) is provided on the other side of the working base plate (1), a slide rail (5) is connected to the working base plate (1), a motor (6) is installed on the working base plate (1), a main synchronous wheel (7) is installed on the output shaft of the motor (6), a synchronous belt (8) is installed on the main synchronous wheel (7), the main synchronous wheel (7) is connected to a secondary synchronous wheel (9) via the synchronous belt (8), a threaded screw (10) is connected to the main synchronous wheel (7) and the secondary synchronous wheel (9), and a moving frame (11) is installed on the threaded screw (10); A threaded sleeve (12) is installed on the movable frame (11), a sealed furnace cover (13) is connected to the movable frame (11), a threaded rod (14) is threadedly connected to the sealed furnace cover (13), one end of the threaded rod (14) is connected to a rotating wheel (15), the other end of the threaded rod (14) is connected to a disc (16), a plurality of slide grooves (17) are provided on the disc (16), a slide rod (18) is slidably connected in the slide groove (17), one end of the slide rod (18) is connected to a plug rod (19), a placement rack (20) is fixedly connected to one side of the sealed furnace cover (13), and an adjusting horizontal plate (21) is connected to the placement rack (20); A support frame (22) is rotatably connected below the placement rack (20), a roller (23) is rotatably mounted on the support frame (22), a ventilation hood (24) is mounted on one side of the annealing furnace (2), a heating plate (25) is mounted on the inner wall of the annealing furnace (2), a cooling pipe (26) is arranged between the outer wall and the inner wall of the annealing furnace (2), one side of the cooling pipe (26) is connected to a liquid inlet pipe (27), and the other side of the cooling pipe (26) is connected to a liquid outlet pipe (28).

2. A vacuum annealing device for steel plate processing according to claim 1, characterized in that: A liquid pump (29) is installed on one side of the water storage tank (4) through a pipeline. Two liquid exchange pipes (30) are installed on the water storage tank (4). The two liquid exchange pipes (30) are distributed up and down. One end of the liquid inlet pipe (27) is connected to the liquid pump (29), and the liquid outlet pipe (28) is connected to the water storage tank (4).

3. A vacuum annealing device for steel plate processing according to claim 1, characterized in that: The ventilation hood (24) is connected to a ventilation pipe (31), one end of the ventilation pipe (31) is connected to a vacuum pump (3), the threaded screw (10) is rotatably connected to the slide rail (5), the threaded sleeve (12) is threadedly matched with the threaded screw (10), and the movable frame (11) slides in the slide rail (5).

4. A vacuum annealing device for steel plate processing according to claim 1, characterized in that: The sealed furnace cover (13) is hollow in design and one side is in contact with the inner wall of the annealing furnace (2). The disc (16) slides in the sealed furnace cover (13), and the slide groove (17) is arc-shaped in design.

5. The vacuum annealing device for steel plate processing according to claim 1, characterized in that: Torsion springs (32) are connected to both sides of the support frame (22), one end of the torsion spring (32) is connected to the placement frame (20), a platform frame is arranged inside the annealing furnace (2), the side of the placement frame (20) away from the sealing furnace cover (13) is in contact with the platform frame inside the annealing furnace (2), and the roller (23) is in rolling contact with the top of the working bottom plate (1).

6. A vacuum annealing device for steel plate processing according to claim 1, characterized in that: The adjusting transverse plate (21) is provided with a first through hole (33), a placement plate (34) is slidably connected between the two adjusting transverse plates (21), and second through holes (35) are provided on both sides of the placement plate (34), and the first through hole (33) and the second through hole (35) are of the same size and are plugged with a latch (36).

7. A vacuum annealing device for steel plate processing according to claim 1, characterized in that: The sealed furnace cover (13) is provided with a plurality of guide grooves (37). There are three guide grooves (37) and three insertion rods (19) in total and they are all symmetrical about the center of the disk (16). The insertion rod (19) slides in the guide grooves (37).

8. The vacuum annealing device for steel plate processing according to claim 1, characterized in that: The annealing furnace (2) is provided with an insertion hole (38), and the working base plate (1) is provided with a plurality of fixing holes (39) on both sides, and the insertion rod (19) is plugged into the insertion hole (38).

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