Temperature control device for cold-rolled medium carbon steel annealed wire

Abstract

The invention discloses a temperature control device for a cold-rolled medium carbon steel annealing line, which belongs to the technical field of medium carbon steel annealing, and comprises a reaction box body, a box door is hinged to the front end of the reaction box body, a controller is mounted on the lower side of one end of the reaction box body, and a ventilator is mounted on the upper side of the other end of the reaction box body. An air inlet is formed in the position, corresponding to the ventilating fan, of the upper side of one end of the reaction box body, a dustproof net is installed in the air inlet, a base is fixedly arranged at the lower end of the interior of the reaction box body, and a supporting plate is arranged on the upper side of the base. The lifting adjustment of the temperature sensor in the reaction box body is realized, the bump drives the pointer to correspond to the dial gauge during adjustment, and a worker can intuitively know the height of the sensor, so that a vertical temperature gradient monitoring blind area is eliminated, the traceability of the monitoring height is ensured, and the accuracy of temperature distribution monitoring and data acquisition in the box body is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of medium carbon steel annealing technology, specifically relating to a temperature control device for a cold-rolled medium carbon steel annealing line. Background Technology

[0002] In the production of cold-rolled medium carbon steel, annealing is required to improve its mechanical and processing properties, thereby enhancing product quality. Temperature control is one of the most crucial steps in the annealing process.

[0003] Existing technologies have the following problems: 1. The temperature sensor of the existing temperature control device for the cold-rolled medium carbon steel annealing line is installed in a fixed position, which can only monitor the temperature at a single height and cannot cover the entire vertical range inside the reaction chamber. It is difficult to eliminate the monitoring blind spot caused by the vertical temperature gradient, resulting in insufficient accuracy in monitoring the temperature distribution inside the chamber and affecting the subsequent temperature control accuracy. 2. In the existing temperature control device for annealing medium carbon steel in cold rolling, a large amount of heat energy generated in the reaction box during the annealing process is not effectively recovered. Most of it is discharged with the exhaust gas or lost through heat dissipation in the furnace body, which not only wastes energy but also increases production energy consumption costs. There is a lack of heat energy recovery and utilization mechanism adapted to the annealing process. 3. In the existing temperature control device of the cold-rolled medium carbon steel annealing line, the support plate that carries the workpiece is not equipped with a special buffer and shock absorption structure. The impact force generated during the placement or processing of the workpiece directly acts on the support plate, which can easily cause damage and deformation of the support plate and may also affect the stability of the workpiece placement, thereby indirectly affecting the annealing effect. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a temperature control device for a cold-rolled medium carbon steel annealing line, which features high accuracy in monitoring the temperature inside the chamber and the ability to recover and utilize heat energy during the annealing process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a temperature control device for a cold-rolled medium carbon steel annealing line, comprising a reaction chamber, a door hinged to the front end of the reaction chamber, a controller installed on the lower side of one end of the reaction chamber, a ventilation fan installed on the upper side of the other end of the reaction chamber, an air inlet installed on the upper side of one end of the reaction chamber corresponding to the ventilation fan, and a dustproof net installed in the air inlet, a base fixedly installed at the lower end inside the reaction chamber, a support plate installed on the upper side of the base, a motor installed at the upper end of the reaction chamber corresponding to the support plate, a rotating frame driven by the output end of the motor, several heating wires installed on both sides of the rotating frame, a temperature sensor installed on the rear side inside the reaction chamber, a shock-absorbing component connecting the support plate and the base, a heat exchange component installed at one end of the reaction chamber corresponding to the ventilation fan for heat recovery and utilization, and an adjustment component connecting the temperature sensor and the reaction chamber to achieve temperature sensor height adjustment.

[0006] Furthermore, the adjustment assembly includes an adjustment seat, the temperature sensor is installed at the front end of the adjustment seat, a fixed frame is fixed at the upper end of the reaction chamber corresponding to the position of the adjustment seat, a second motor is installed at the upper end of the fixed frame, a screw is driven to the output end of the second motor, a movable plate is threaded to the surface of the screw, and the adjustment seat and the movable plate are connected by a connecting rod.

[0007] Furthermore, the adjustment component also includes a protrusion, the front end of the movable plate is fixedly provided with a protrusion, the front end of the fixed frame is provided with a groove corresponding to the protrusion, the front end of the protrusion is fixedly provided with a pointer, and the front end of the fixed frame is provided with a scale at the position corresponding to the pointer.

[0008] Furthermore, the upper end of the reaction chamber is provided with a sliding hole corresponding to the connecting rod, and the side of the rotating frame is offset from the adjusting seat and the connecting rod.

[0009] Furthermore, the heat exchange assembly includes a fixed bucket. The fixed bucket is fixedly installed on the upper side of one end of the reaction chamber, corresponding to the ventilation fan. A water tank is provided on one side of the fixed bucket. A spiral heat exchange tube is fixedly installed inside the water tank. One end of the spiral heat exchange tube is sealed to the fixed bucket, and the other end of the spiral heat exchange tube extends out of the water tank. A thermometer is installed on the lower side of one end of the water tank. A water inlet pipe is fixedly installed on one side of the upper end of the water tank, and a drain pipe is fixedly installed on one side of the lower end of the water tank. A liquid level window is provided at the front end of the water tank.

[0010] Furthermore, the upper end of the water inlet pipe is fitted with a pipe cover using a threaded connection, the drain pipe is equipped with a valve to control the flow of water, and the inner wall of the water tank is coated with a heat-insulating coating.

[0011] Furthermore, the shock absorption assembly includes a cavity, the base has a cavity inside, a slide plate is slidably connected in the cavity, and slide seats are slidably connected on both sides of the lower end inside the cavity. A second slide groove corresponding to the slide seat is opened in the cavity. Damping rods are installed on both sides between one end of the slide seat and the base. A spring is sleeved on the outside of the damping rod between the slide seat and the base. The slide seat and the slide plate are connected by a rotating rod.

[0012] Furthermore, the rotating rod and the slide block, as well as the rotating rod and the slide plate, are rotatably connected, and sliding holes corresponding to the connecting plate are provided on both sides of the upper end of the base.

[0013] Furthermore, the front end of the base is fixed with an inspection door by bolts, and the inner wall of the cavity is coated with a heat-insulating coating.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The adjustment component of the present invention is driven by a motor to rotate a screw, which drives the moving plate, connecting rod and adjustment seat to move up and down the temperature sensor in the reaction chamber. During adjustment, the protrusion drives the pointer to correspond to the scale, so that the staff can intuitively know the height of the sensor. This not only eliminates the blind spot of vertical temperature gradient monitoring, but also ensures the traceability of monitoring height, and greatly improves the accuracy of temperature distribution monitoring and data acquisition in the chamber.

[0015] 2. The heat exchange component of the present invention injects cold water into the water tank through the water inlet pipe. When cooling down, the ventilation fan guides the hot air in the tank through the fixed bucket into the spiral heat exchange tube, where it exchanges heat with the cold water to achieve heating. The thermometer monitors the water temperature in real time, and hot water can be obtained by opening the drain valve. This component efficiently recovers and utilizes the heat energy in the tank, combining energy saving and practicality.

[0016] 3. When vibration occurs during workpiece placement or processing, the vibration damping component of the present invention pushes the sliding plate through the connecting plate, and drives the sliding block to squeeze the damping rod and spring through the rotating rod. With the help of the elastic buffering effect of the two, the impact of vibration on the support plate is effectively reduced, thus protecting the support plate, significantly extending its service life, and ensuring stable operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a rear-view perspective view of the present invention; Figure 3 This is a sectional perspective view of the reaction chamber of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the water tank of the present invention; Figure 5 This is a cross-sectional perspective view of the base of the present invention; In the diagram: 1. Reaction chamber; 6. Base; 7. Support plate; 8. Chamber door; 9. Ventilation fan; 10. Motor 1; 11. Rotating frame; 12. Heating wire; 13. Temperature sensor; 2. Adjustment assembly; 21. Fixed frame; 22. Motor II; 23. Screw; 24. Moving plate; 25. Connecting rod; 26. Adjustment seat; 27. Protrusion; 28. Slide groove I; 29. ​​Scale; 210. Pointer; 3. Controller; 4. Heat exchange assembly; 41. Water tank; 42. Fixed hopper; 43. Thermometer; 44. Drain pipe; 45. Inlet pipe; 46. Spiral heat exchange tube; 47. Liquid level window; 5. Shock absorption assembly; 51. Cavity; 52. Slide plate; 53. Connecting plate; 54. Slide seat; 55. Second slide groove; 56. Rotating rod; 57. Damping rod; 58. Spring. Detailed Implementation

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

[0019] Please see Figure 1-5 The present invention provides the following technical solution: a temperature control device for a cold-rolled medium carbon steel annealing line, comprising a reaction chamber 1, a door 8 hinged to the front end of the reaction chamber 1, a controller 3 installed on the lower side of one end of the reaction chamber 1, a ventilation fan 9 installed on the upper side of the other end of the reaction chamber 1, an air inlet installed on the upper side of one end of the reaction chamber 1 corresponding to the ventilation fan 9, and a dustproof net installed in the air inlet, a base 6 fixedly installed at the lower end inside the reaction chamber 1, a support plate 7 provided on the upper side of the base 6, a motor 10 installed at the upper end of the reaction chamber 1 corresponding to the support plate 7, a rotating frame 11 driven to the output end of the motor 10, a plurality of heating wires 12 installed on both sides of the rotating frame 11, a temperature sensor 13 installed on the rear side inside the reaction chamber 1, a shock-absorbing component 5 connecting the support plate 7 and the base 6, a heat exchange component 4 installed at the position corresponding to the ventilation fan 9 at one end of the reaction chamber 1 for heat energy recovery and utilization, and an adjustment component 2 connecting the temperature sensor 13 to the reaction chamber 1 to realize the lifting and lowering adjustment of the temperature sensor 13.

[0020] Furthermore, in this invention, the adjustment component 2 includes an adjustment seat 26, a temperature sensor 13 is installed at the front end of the adjustment seat 26, a fixed frame 21 is fixed at the upper end of the reaction chamber 1 at a position corresponding to the adjustment seat 26, a second motor 22 is installed at the upper end of the fixed frame 21, a screw 23 is driven to the output end of the second motor 22, a moving plate 24 is threaded to the surface of the screw 23, and the adjustment seat 26 and the moving plate 24 are connected by a connecting rod 25.

[0021] By adopting the above technical solution, the starting motor 22 drives the screw 23 to rotate, and the screw 23 drives the moving plate 24 to move horizontally within the fixed frame 21. The moving plate 24 pulls the adjusting seat 26 and the temperature sensor 13 to rise and fall within the reaction chamber 1 through the connecting rod 25. The setting of the adjusting component 2 can flexibly adjust the height position of the temperature sensor 13, effectively eliminating the monitoring blind zone caused by the vertical temperature gradient and significantly improving the accuracy of temperature distribution monitoring inside the chamber.

[0022] Furthermore, in this invention, the adjustment component 2 also includes a protrusion 27, the front end of the movable plate 24 is fixedly provided with the protrusion 27, the front end of the fixed frame 21 is provided with a slide groove 28 corresponding to the protrusion 27, the front end of the protrusion 27 is fixedly provided with a pointer 210, and the front end of the fixed frame 21 is provided with a scale 29 at the position corresponding to the pointer 210.

[0023] By adopting the above technical solution, when the temperature sensor 13 is height adjusted, the moving plate 24 will move and drive the protrusion 27 to slide along the slide groove 28. By using the pointer 210 at the front end of the protrusion 27 to correspond to the indicated position of the scale 29, the staff can intuitively know the specific height of the temperature sensor 13 in the box, ensuring that the temperature monitoring height is traceable and further improving the accuracy of temperature data acquisition.

[0024] Furthermore, in this invention, the upper end of the reaction chamber 1 is provided with a sliding hole corresponding to the connecting rod 25, and the side of the rotating frame 11 is offset from the adjusting seat 26 and the connecting rod 25.

[0025] By adopting the above technical solution, the connecting rod 25 can slide on the upper end of the reaction chamber 1, and the rotating frame 11 will not scrape or hit the adjusting seat 26 and the connecting rod 25 when it rotates.

[0026] In this embodiment, after placing the workpiece on the support plate 7 and closing the chamber door 8, the controller 3 starts the heating wire 12 for heating. At the same time, the drive motor 10 drives the rotating frame 11 and the heating wire 12 to rotate synchronously, so that the temperature inside the reaction chamber 1 rises evenly. The temperature sensor 13 senses the temperature inside the chamber in real time and feeds it back to the controller 3. When the temperature reaches the predetermined value, the controller 3 controls the heating wire 12 to reduce the power to maintain the heat preservation state. If the temperature is lower than the predetermined value, the controller controls the heating wire 12 to increase the power to compensate for the temperature. After the annealing and heat preservation are completed, the heating wire 12 is turned off and the ventilation fan 9 is turned on to quickly remove the heat inside the chamber to achieve cooling.

[0027] The starter motor 22 drives the screw 23 to rotate. The screw 23 drives the moving plate 24 to move horizontally within the fixed frame 21. The moving plate 24 pulls the adjusting seat 26 and the temperature sensor 13 to rise and fall within the reaction chamber 1 via the connecting rod 25. The setting of the adjusting component 2 can flexibly adjust the height position of the temperature sensor 13, effectively eliminating the monitoring blind spot caused by the vertical temperature gradient and significantly improving the accuracy of temperature distribution monitoring inside the chamber.

[0028] When the temperature sensor 13 is adjusted in height, the moving plate 24 moves and drives the protrusion 27 to slide along the slide groove 28. By using the pointer 210 at the front end of the protrusion 27 to correspond to the indicated position of the scale 29, the staff can intuitively know the specific height of the temperature sensor 13 in the box, ensuring that the temperature monitoring height is traceable and further improving the accuracy of temperature data acquisition. Example

[0029] The difference between this embodiment and embodiment 1 is that: the heat exchange assembly 4 includes a fixed bucket 42. The fixed bucket 42 is fixedly installed on the upper side of one end of the reaction chamber 1 at a position corresponding to the ventilation fan 9. A water tank 41 is provided on one side of the fixed bucket 42. A spiral heat exchange tube 46 is fixedly installed inside the water tank 41. One end of the spiral heat exchange tube 46 is sealed to the fixed bucket 42, and the other end of the spiral heat exchange tube 46 extends out of the water tank 41. A thermometer 43 is installed on the lower side of one end of the water tank 41. A water inlet pipe 45 is fixedly installed on one side of the upper end of the water tank 41, and a drain pipe 44 is fixedly installed on one side of the lower end of the water tank 41. A liquid level window 47 is provided at the front end of the water tank 41.

[0030] By adopting the above technical solution, cold water is injected into the water tank 41 through the water inlet pipe 45. During the cooling process, the ventilation fan 9 guides the hot air in the tank through the fixed bucket 42 into the spiral heat exchange tube 46. The hot air exchanges heat with the cold water in the water tank 41 to achieve cold water heating. The thermometer 43 monitors the water temperature in the water tank 41 in real time. Hot water can be released for subsequent use by opening the valve on the drain pipe 44. The setting of the heat exchange component 4 realizes the efficient recovery and utilization of heat energy in the tank.

[0031] Furthermore, in this invention, the upper end of the water inlet pipe 45 is fitted with a pipe cover by a threaded connection, the drain pipe 44 is equipped with a valve to realize the control of drainage on and off, and the inner wall of the water tank 41 is coated with a heat insulation coating.

[0032] By adopting the above technical solutions, the pipe cover can seal the water inlet pipe 45 to prevent impurities from entering through the threaded connection, the valve can precisely control the flow of water, and the insulation coating can reduce water temperature loss in the water tank 41. The three work together to ensure clean water quality, controllable water use, and efficient heat recovery.

[0033] In this embodiment, cold water is injected into the water tank 41 through the water inlet pipe 45. During the cooling process, the ventilation fan 9 guides the hot air in the tank into the spiral heat exchange tube 46 through the fixed bucket 42. The hot air exchanges heat with the cold water in the water tank 41 to achieve cold water heating. The thermometer 43 monitors the water temperature in the water tank 41 in real time. Hot water can be released for subsequent use by opening the valve on the drain pipe 44. The setting of the heat exchange component 4 realizes the efficient recovery and utilization of heat energy in the tank. Example

[0034] The difference between this embodiment and embodiments 1 and 2 is that: the shock absorption component 5 includes a cavity 51, the base 6 has a cavity 51 inside, a slide plate 52 is slidably connected in the cavity 51, a slide seat 54 is slidably connected on both sides of the lower end inside the cavity 51, a second slide groove 55 corresponding to the slide seat 54 is opened in the cavity 51, a damping rod 57 is installed on both sides between one end of the slide seat 54 and the base 6, a spring 58 is sleeved on the outside of the damping rod 57 between the slide seat 54 and the base 6, and the slide seat 54 and the slide plate 52 are connected by a rotating rod 56.

[0035] By adopting the above technical solution, when the workpiece is placed on the support plate 7 or vibrates during processing, the connecting plates 53 on both sides of the lower end of the support plate 7 will push the slide plate 52 to slide in the cavity 51. The slide plate 52 drives the slide block 54 to slide along the slide groove 55 through the rotating rod 56. During the sliding process, the slide block 54 compresses the damping rod 57 and the spring 58. With the help of the elastic buffering effect of the damping rod 57 and the spring 58, the shock absorption component 5 can effectively reduce the impact of vibration on the support plate 7, thereby protecting the support plate 7 and extending its service life.

[0036] Furthermore, in this invention, the rotating rod 56 is rotatably connected to the slide block 54 and to the sliding plate 52, and the upper end of the base 6 is provided with sliding holes corresponding to the connecting plate 53 on both sides.

[0037] By adopting the above technical solution, the rotating rod 56 can rotate between the slide block 54 and the slide plate 52, and the connecting plate 53 can slide in the upper part of the base 6.

[0038] Furthermore, in this invention, the front end of the base 6 is fixed with an inspection door by bolts, and the inner wall of the cavity 51 is coated with a heat insulation coating.

[0039] By adopting the above technical solutions, the bolt-connected inspection door facilitates the inspection and maintenance of internal components in cavity 51, and the heat insulation coating blocks the transfer of internal and external temperatures, ensuring stable operation of components and improving the convenience and reliability of equipment operation and maintenance.

[0040] In this embodiment, when the workpiece is placed on the support plate 7 or when vibration occurs during processing, the connecting plates 53 on both sides of the lower end of the support plate 7 will push the slide plate 52 to slide in the cavity 51. The slide plate 52 drives the slide seat 54 to slide along the slide groove 55 through the rotating rod 56. During the sliding process, the slide seat 54 compresses the damping rod 57 and the spring 58. With the help of the elastic buffering effect of the damping rod 57 and the spring 58, the shock absorption component 5 can effectively reduce the impact of vibration on the support plate 7, thereby protecting the support plate 7 and extending its service life.

[0041] The working principle and usage process of this invention: When using the temperature control device of the cold-rolled medium carbon steel annealing line, install the device in a suitable position, place the workpiece on the support plate 7 and close the chamber door 8. The controller 3 starts the heating wire 12 for heating, and at the same time, the drive motor 10 drives the rotating frame 11 and the heating wire 12 to rotate synchronously, so that the temperature inside the reaction chamber 1 rises uniformly. The temperature sensor 13 senses the temperature inside the chamber in real time and feeds it back to the controller 3. When the temperature reaches the predetermined value, the controller 3 controls the heating wire 12 to reduce the power to maintain the heat preservation state. If the temperature is lower than the predetermined value, the controller controls the heating wire 12 to increase the power to compensate for the temperature. After the annealing heat preservation is completed, the heating wire 12 is turned off and the ventilation fan 9 is turned on to quickly remove the heat inside the chamber to achieve cooling.

[0042] The starter motor 22 drives the screw 23 to rotate. The screw 23 drives the moving plate 24 to move horizontally within the fixed frame 21. The moving plate 24 pulls the adjusting seat 26 and the temperature sensor 13 to rise and fall within the reaction chamber 1 via the connecting rod 25. The setting of the adjusting component 2 can flexibly adjust the height position of the temperature sensor 13, effectively eliminating the monitoring blind spot caused by the vertical temperature gradient and significantly improving the accuracy of temperature distribution monitoring inside the chamber.

[0043] When the temperature sensor 13 is adjusted in height, the moving plate 24 moves and drives the protrusion 27 to slide along the slide groove 28. By using the pointer 210 at the front end of the protrusion 27 to correspond to the indicated position of the scale 29, the staff can intuitively know the specific height of the temperature sensor 13 in the box, ensuring that the temperature monitoring height is traceable and further improving the accuracy of temperature data acquisition.

[0044] Cold water is injected into the water tank 41 through the inlet pipe 45. During the cooling process, the ventilation fan 9 guides the hot air in the tank through the fixed bucket 42 into the spiral heat exchange tube 46. The hot air exchanges heat with the cold water in the water tank 41 to achieve cold water heating. The thermometer 43 monitors the water temperature in the water tank 41 in real time. Hot water can be released for subsequent use by opening the valve on the drain pipe 44. The setting of the heat exchange component 4 realizes the efficient recovery and utilization of heat energy in the tank.

[0045] When the workpiece is placed on the support plate 7 or when vibration occurs during processing, the connecting plates 53 on both sides of the lower end of the support plate 7 will push the slide plate 52 to slide in the cavity 51. The slide plate 52 drives the slide block 54 to slide along the slide groove 55 through the rotating rod 56. During the sliding process, the slide block 54 compresses the damping rod 57 and the spring 58. With the help of the elastic buffering effect of the damping rod 57 and the spring 58, the shock absorption component 5 can effectively reduce the impact of vibration on the support plate 7, thereby protecting the support plate 7 and extending its service life.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature control device for a cold-rolled medium carbon steel annealing line, comprising a reaction chamber (1), characterized in that: The reaction chamber (1) is hinged to a door (8) at the front end. A controller (3) is installed on the lower side of one end of the reaction chamber (1). A ventilation fan (9) is installed on the upper side of the other end of the reaction chamber (1). An air inlet is installed on the upper side of one end of the reaction chamber (1) at a position corresponding to the ventilation fan (9), and a dustproof net is installed in the air inlet. A base (6) is fixedly installed at the lower end of the interior of the reaction chamber (1). A support plate (7) is provided on the upper side of the base (6). A motor (10) is installed on the upper end of the reaction chamber (1) at a position corresponding to the support plate (7). 10) The output end is connected to a rotating frame (11). Several heating wires (12) are installed on both sides of the rotating frame (11). A temperature sensor (13) is installed on the rear side inside the reaction chamber (1). The support plate (7) and the base (6) are connected by a shock-absorbing component (5). A heat exchange component (4) is installed at one end of the reaction chamber (1) corresponding to the ventilation fan (9) for heat recovery and utilization. The temperature sensor (13) is connected to the reaction chamber (1) by an adjustment component (2) to realize the lifting and lowering adjustment of the temperature sensor (13).

2. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 1, characterized in that: The adjustment component (2) includes an adjustment seat (26), the temperature sensor (13) is installed at the front end of the adjustment seat (26), a fixed frame (21) is fixed at the upper end of the reaction chamber (1) at the position corresponding to the adjustment seat (26), a motor (22) is installed at the upper end of the fixed frame (21), a screw (23) is connected to the output end of the motor (22), a moving plate (24) is threaded on the surface of the screw (23), and the adjustment seat (26) and the moving plate (24) are connected by a connecting rod (25).

3. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 2, characterized in that: The adjustment component (2) also includes a protrusion (27). The front end of the moving plate (24) is fixed with a protrusion (27). The front end of the fixed frame (21) is provided with a slide groove (28) corresponding to the protrusion (27). The front end of the protrusion (27) is fixed with a pointer (210). The front end of the fixed frame (21) is provided with a scale (29) at the position corresponding to the pointer (210).

4. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 3, characterized in that: The upper end of the reaction chamber (1) is provided with a sliding hole corresponding to the connecting rod (25), and the side of the rotating frame (11) is staggered from the adjustment seat (26) and the connecting rod (25).

5. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 1, characterized in that: The heat exchange assembly (4) includes a fixed bucket (42). The fixed bucket (42) is fixedly installed on the upper side of one end of the reaction chamber (1) at a position corresponding to the ventilation fan (9). A water tank (41) is provided on one side of the fixed bucket (42). A spiral heat exchange tube (46) is fixedly installed inside the water tank (41). One end of the spiral heat exchange tube (46) is sealed to the fixed bucket (42), and the other end of the spiral heat exchange tube (46) extends out of the water tank (41). A thermometer (43) is installed on the lower side of one end of the water tank (41). A water inlet pipe (45) is fixedly installed on one side of the upper end of the water tank (41), and a drain pipe (44) is fixedly installed on one side of the lower end of the water tank (41). A liquid level window (47) is provided at the front end of the water tank (41).

6. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 5, characterized in that: The upper end of the water inlet pipe (45) is fitted with a pipe cover by a threaded connection, and the drain pipe (44) is equipped with a valve to realize the control of drainage on and off, and the inner wall of the water tank (41) is coated with a heat insulation coating.

7. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 1, characterized in that: The shock absorption assembly (5) includes a cavity (51). The cavity (51) is opened inside the base (6). A slide plate (52) is slidably connected in the cavity (51). A slide seat (54) is slidably connected on both sides of the lower end inside the cavity (51). A second slide groove (55) corresponding to the slide seat (54) is opened in the cavity (51). A damping rod (57) is installed on both sides between one end of the slide seat (54) and the base (6). A spring (58) is sleeved on the outside of the damping rod (57) between the slide seat (54) and the base (6). The slide seat (54) and the slide plate (52) are connected by a rotating rod (56).

8. The temperature control device for a cold-rolled medium carbon steel annealing line according to claim 7, characterized in that: The rotating rod (56) and the slide (54) are connected by rotation, and the rotating rod (56) and the slide plate (52) are connected by rotation. The upper end of the base (6) has sliding holes on both sides corresponding to the connecting plate (53).

9. A temperature control device for a cold-rolled medium carbon steel annealing line according to claim 8, characterized in that: The front end of the base (6) is fixed with an inspection door by bolts, and the inner wall of the cavity (51) is coated with a heat insulation coating.

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