Energy-saving high-strength battery foil blank annealing furnace

Abstract

The utility model relates to the technical field of battery foil blank processing, in particular to an energy-saving high-strength battery foil blank annealing furnace which comprises a battery foil annealing furnace body, a dredging frame is fixedly connected to the left side of the battery foil annealing furnace body, and a spring telescopic rod is fixedly installed in the dredging frame. And one end of each spring telescopic rod is fixedly connected with an abutting roller, a distance sensor is fixedly installed on the surface of the inner wall of the dredging frame, and inlets and outlets are formed in the left side and the right side of the battery foil annealing furnace body correspondingly. And an upper restraining roller and a lower restraining roller which can be adjusted and controlled are additionally arranged to conduct anti-contact type range restraining and follow-up transmission abutting connection to prevent falling, and the restraining protection type multiple annealing effect on the energy-saving type high-strength battery foil blank is enhanced.

Description

Technical Field

[0001] The utility model relates to an energy-saving high-strength battery foil blank annealing furnace, belonging to the technical field of battery foil blank processing. Background Art

[0002] Battery aluminum foil is used as the current collector of lithium-ion batteries. Usually, the lithium-ion battery industry uses hot-rolled aluminum foil as the positive electrode of the negative electrode collector. Annealing is a link in the production process of battery foil blanks. During the production process, the sintered battery foil blanks need to be cooled down, and the cooling process needs to be completed in the annealing furnace;

[0003] For example, a battery cell annealing furnace with patent publication number CN201921438437.8 can control the temperature at various locations in the annealing furnace to make the temperature environment in the furnace more balanced. A battery cell annealing furnace includes a furnace body, an air inlet, an air outlet and a transportation device, wherein the air inlet is arranged at the top of the furnace body, the air outlet is arranged at the bottom of the furnace body, the transportation device is located below the air inlet, and the air outlet is multiple and distributed along the length direction of the furnace body at the bottom of the furnace body, and an exhaust device is connected below each of the air outlets;

[0004] Since the above-mentioned battery cell annealing furnace is a single furnace chamber for annealing the battery cells, the internal ventilation circulation environment is relatively fixed, resulting in limited annealing adjustment effect inside. In addition, the battery aluminum foil is thinner and softer than the battery cells, and may be sticky and worn when falling, which brings certain adverse effects on actual use, and therefore needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving high-strength battery foil blank annealing furnace. The utility model completes the annealing treatment in a step-by-step manner by setting up three-zone sequential annealing exhaust circulation in the annealing furnace, and adds two upper and lower restraining rollers that can be adjusted and controlled to perform anti-contact range restraint and subsequent transmission abutment to prevent falling, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An energy-saving high-strength battery foil blank annealing furnace comprises a battery foil annealing furnace body, a guide frame is fixedly connected to the left side of the battery foil annealing furnace body, a spring telescopic rod is fixedly installed inside the guide frame, one end of the spring telescopic rod is fixedly connected to an abutting roller, a distance sensor is fixedly installed on the surface of the inner wall of the guide frame, an inlet and outlet are opened on the left and right sides of the battery foil annealing furnace body, an air outlet device is fixedly installed on the top and bottom of the inner wall of the battery foil annealing furnace body, an exhaust device is fixedly connected to the front and rear sides of the battery foil annealing furnace body, a partition plate is fixedly connected to the surface of the inner wall of the battery foil annealing furnace body, a driving motor is fixedly installed on the top of the partition plate through a fixing frame, a threaded rod is fixedly connected to the output end of the driving motor, a threaded sleeve plate is threadedly connected to the surface of the threaded rod, a limiting component is connected to the side of the threaded sleeve plate, an upper constraint roller is fixedly installed on the bottom of the threaded sleeve plate, and a lower constraint roller is fixedly installed on the bottom of the inner wall of the partition plate.

[0008] Furthermore, a guide roller is rotatably connected to the left side of the guide frame near the inner wall thereof through a driving end, and the surface of the guide roller is provided as a smooth surface.

[0009] Furthermore, the number of the abutment rollers and the distance sensors are both four, and the four abutment rollers and the distance sensors are all connected to the guide frame in up, down, left and right positions, and the abutment roller is located on the right side of the distance sensor.

[0010] Furthermore, the limiting assembly includes a limiting plate and a limiting groove, the limiting plate is fixedly connected to the side of the threaded sleeve plate, the limiting groove is opened on the side of the inner wall of the partition plate, and the inner wall of the limiting groove is slidably connected to the surface of the limiting plate.

[0011] Furthermore, the battery foil annealing furnace body is divided into three-zone annealing furnaces, and each single-zone annealing furnace is composed of two upper and lower air outlet devices, and there are four exhaust devices evenly distributed in the front and back middle parts of the battery foil annealing furnace body.

[0012] Furthermore, an extension frame is fixedly connected to the right side of the battery foil annealing furnace body, and a temperature sensor is fixedly installed on the top of the inner wall of the extension frame.

[0013] The beneficial effects of the utility model are:

[0014] 1. In the utility model, the energy-saving high-strength battery foil blank is conveyed and introduced through the provided dredging frame, and the guide roller inside the dredging frame can move the energy-saving high-strength battery foil blank in the direction of discharge, and the operation of the spring telescopic rod can control the abutment roller to abut the upper and lower parts of the energy-saving high-strength battery foil blank to maintain the horizontal position movement of the energy-saving high-strength battery foil blank, and the inclination degree of the energy-saving high-strength battery foil blank in the moving state can be determined by combining the left and right distance sensors, and the energy-saving high-strength battery foil blank is moved out of the battery foil annealing furnace body through the extension frame, and the temperature sensor can sense and monitor the actual temperature of the energy-saving high-strength battery foil blank after annealing in real time to ensure the smooth transmission of the energy-saving high-strength battery foil blank;

[0015] 2. In the utility model, annealing treatment is carried out in a step-by-step manner in three different areas of the battery foil annealing furnace body, and air outlet devices and exhaust devices in different areas carry out circulating air distribution to different degrees. The drive motor is started to drive the threaded rod to rotate, and under the limit setting of the limit assembly, the rotation of the threaded rod can drive the threaded sleeve to move, and then the upper constraint roller is controlled to approach the lower constraint roller to perform anti-contact range constraint, so as to avoid the energy-saving high-strength battery foil blank directly abutting against the inside of the battery foil annealing furnace body and causing damage. After the three-stage annealing treatment, the energy-saving high-strength battery foil blank will be moved out of the inside of the battery foil annealing furnace body through the extension frame, thereby enhancing the constraint and protection type multiple annealing effect on the energy-saving high-strength battery foil blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of an energy-saving high-strength battery foil blank annealing furnace of the utility model;

[0018] Figure 2 It is a front cross-sectional view of an energy-saving high-strength battery foil blank annealing furnace of the utility model;

[0019] Figure 3 It is a front cross-sectional view of a guide frame in an energy-saving high-strength battery foil blank annealing furnace of the utility model;

[0020] Figure 4 This is an enlarged view of point A of an energy-saving high-strength battery foil blank annealing furnace of the utility model;

[0021] Numbers in the figure: 1. Battery foil annealing furnace body; 2. Guide frame; 3. Spring telescopic rod; 4. Abutment roller; 5. Distance sensor; 6. Air outlet device; 7. Exhaust device; 8. Partition plate; 9. Drive motor; 10. Threaded rod; 11. Threaded sleeve plate; 12. Upper constraint roller; 13. Lower constraint roller; 14. Guide roller; 15. Limit plate; 16. Limit groove; 17. Extension frame; 18. Temperature sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] An energy-saving high-strength battery foil blank annealing furnace, comprising a battery foil annealing furnace body 1, a guide frame 2 is fixedly connected to the left side of the battery foil annealing furnace body 1, a spring telescopic rod 3 is fixedly installed inside the guide frame 2, one end of the spring telescopic rod 3 is fixedly connected to an abutment roller 4, a distance sensor 5 is fixedly installed on the surface of the inner wall of the guide frame 2, an inlet and outlet are opened on the left and right sides of the battery foil annealing furnace body 1, an air outlet device 6 is fixedly installed on the top and bottom of the inner wall of the battery foil annealing furnace body 1, and the battery foil annealing furnace body 1 is fixedly installed with a spring telescopic rod 3. The front and rear sides of the furnace body 1 are fixedly connected with exhaust devices 7, the surface of the inner wall of the battery foil annealing furnace body 1 is fixedly connected with a partition plate 8, the top of the partition plate 8 is fixedly installed with a drive motor 9 through a fixed frame, the output end of the drive motor 9 is fixedly connected with a threaded rod 10, the surface of the threaded rod 10 is threadedly connected with a threaded sleeve 11, the side of the threaded sleeve 11 is connected with a limiting component, the bottom of the threaded sleeve 11 is fixedly installed with an upper constraint roller 12, and the bottom of the inner wall of the partition plate 8 is fixedly installed with a lower constraint roller 13.

[0025] Specifically, Figure 1-Figure 4As shown, the number of the abutment rollers 4 and the distance sensors 5 are both four, and the four abutment rollers 4 and the distance sensors 5 are all connected to the guide frame 2 in the upper, lower, left and right positions. The abutment rollers 4 are located on the right side of the distance sensor 5. The two left and right distance sensors 5 can be combined to determine the degree of inclination of the energy-saving high-strength battery foil blank in the moving state, and the horizontal position movement of the energy-saving high-strength battery foil blank is maintained. The battery foil annealing furnace body 1 is divided into three-zone annealing furnaces, and each single-zone annealing furnace is composed of two upper and lower air outlet devices 6, and there are four exhaust devices 7 evenly distributed in the front and back middle parts of the battery foil annealing furnace body 1. The annealing treatment is carried out in a step-by-step manner in three different areas of the battery foil annealing furnace body 1, and the air outlet devices 6 and exhaust devices 7 in different areas carry out different degrees of circulating air.

[0026] Specifically, Figure 1-Figure 4 As shown, the limiting assembly includes a limiting plate 15 and a limiting groove 16, wherein the limiting plate 15 is fixedly connected to the side of the threaded sleeve 11, and the limiting groove 16 is provided on the side of the inner wall of the partition plate 8, and the inner wall of the limiting groove 16 and the surface of the limiting plate 15 are slidably connected. By setting the limiting plate 15 and the limiting groove 16, the movement trajectory of the threaded sleeve 11 is limited, so that the rotation of the threaded rod 10 can drive the threaded sleeve 11 to move.

[0027] Example 2 Please refer to Figure 1-Figure 4 The difference between this embodiment and embodiment 1 is that the left side of the guide frame 2 near its inner wall is rotatably connected to a guide roller 14 through a driving end, and the surface of the guide roller 14 is provided as a smooth surface. The guide roller 14 can move the energy-saving high-strength battery foil blank in the guide frame 2. The right side of the battery foil annealing furnace body 1 is fixedly connected to an extension frame 17, and a temperature sensor 18 is fixedly installed on the top of the inner wall of the extension frame 17. After the three-stage annealing treatment, the energy-saving high-strength battery foil blank will pass through the extension frame 17 and move out of the battery foil annealing furnace body 1, and the temperature sensor 18 can sense and monitor the actual temperature of the energy-saving high-strength battery foil blank after the annealing treatment in real time.

[0028] Working principle of the utility model: when in use, the staff can use the guide frame 2 to convey and introduce the energy-saving high-strength battery foil blanks, and the guide rollers 14 inside the guide frame 2 can move the energy-saving high-strength battery foil blanks in the discharge direction, and the operation of the spring telescopic rod 3 can control the abutment roller 4 to abut against the upper and lower parts of the energy-saving high-strength battery foil blanks to maintain the horizontal position movement of the energy-saving high-strength battery foil blanks, and the left and right distance sensors 5 can be combined to determine the inclination degree of the energy-saving high-strength battery foil blanks in the moving state, and annealing treatment is carried out in three different areas of the battery foil annealing furnace body 1 in a step-by-step manner, and the air outlet devices 6 and exhaust devices 7 in different areas perform different degrees of circulating air, and the drive motor 9 is started to drive the screw The threaded rod 10 rotates, and the movement trajectory of the threaded sleeve 11 is limited by the setting of the limit plate 15 and the limit groove 16, so that the rotation of the threaded rod 10 can drive the threaded sleeve 11 to move, and then control the upper constraint roller 12 to approach the lower constraint roller 13, and perform anti-contact range constraint to avoid the energy-saving high-strength battery foil blank directly abutting against the inside of the battery foil annealing furnace body 1 and causing damage. The energy-saving high-strength battery foil blank after the three-stage annealing treatment will be moved out of the battery foil annealing furnace body 1 through the extension frame 17, and the temperature sensor 18 can sense and monitor the actual temperature of the energy-saving high-strength battery foil blank after the annealing treatment in real time, thereby enhancing the constraint and protection multiple annealing effect on the energy-saving high-strength battery foil blank.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving high-strength battery foil blank annealing furnace, comprising a battery foil annealing furnace body (1), characterized in that: The left side of the battery foil annealing furnace body (1) is fixedly connected to a guide frame (2), the interior of the guide frame (2) is fixedly installed with a spring telescopic rod (3), one end of the spring telescopic rod (3) is fixedly connected to an abutting roller (4), a distance sensor (5) is fixedly installed on the surface of the inner wall of the guide frame (2), the left and right sides of the battery foil annealing furnace body (1) are provided with an inlet and outlet, the top and bottom of the inner wall of the battery foil annealing furnace body (1) are fixedly installed with an air outlet device (6), the front and rear sides of the battery foil annealing furnace body (1) are fixedly connected with a discharge device (7), and the battery foil annealing furnace body (1) is fixedly connected with a discharge device (8). A wind device (7) is provided, wherein a partition plate (8) is fixedly connected to the surface of the inner wall of the battery foil annealing furnace body (1), a driving motor (9) is fixedly installed on the top of the partition plate (8) through a fixing frame, a threaded rod (10) is fixedly connected to the output end of the driving motor (9), a threaded sleeve (11) is threadedly connected to the surface of the threaded rod (10), a side of the threaded sleeve (11) is connected to a limiting component, an upper constraint roller (12) is fixedly installed on the bottom of the threaded sleeve (11), and a lower constraint roller (13) is fixedly installed on the bottom of the inner wall of the partition plate (8).

2. The energy-saving high-strength battery foil blank annealing furnace according to claim 1, characterized in that: The left side of the guide frame (2) close to the inner wall thereof is rotatably connected to a guide roller (14) via a driving end, and the surface of the guide roller (14) is provided as a smooth surface.

3. The energy-saving high-strength battery foil blank annealing furnace according to claim 1, characterized in that: The number of the abutment rollers (4) and the distance sensors (5) are both four, and the four abutment rollers (4) and the distance sensors (5) are all connected to the guide frame (2) in upper, lower, left, and right positions, and the abutment rollers (4) are located on the right side of the distance sensors (5).

4. The energy-saving high-strength battery foil blank annealing furnace according to claim 1, characterized in that: The limiting assembly comprises a limiting plate (15) and a limiting groove (16), wherein the limiting plate (15) is fixedly connected to the side surface of the threaded sleeve (11), and the limiting groove (16) is opened on the side surface of the inner wall of the partition plate (8), and the inner wall of the limiting groove (16) is slidably connected to the surface of the limiting plate (15).

5. The energy-saving high-strength battery foil blank annealing furnace according to claim 1, characterized in that: The battery foil annealing furnace body (1) is internally divided into three-zone annealing furnaces, and each single-zone annealing furnace is composed of two upper and lower air outlet devices (6), and four exhaust devices (7) are evenly distributed at the front and back middle parts of the battery foil annealing furnace body (1).

6. The energy-saving high-strength battery foil blank annealing furnace according to claim 1, characterized in that: An extension frame (17) is fixedly connected to the right side of the battery foil annealing furnace body (1), and a temperature sensor (18) is fixedly installed on the top of the inner wall of the extension frame (17).

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