An automatic blanking device for cylindrical lithium batteries

Abstract

The present invention discloses an automatic blanking device for cylindrical lithium batteries, belonging to the technical field of cylindrical lithium battery processing. The automatic blanking device includes a support platform, a roller conveyor arranged on the support platform and used for horizontally conveying cylindrical lithium batteries, and further includes a sleeve frame, a pushing mechanism and a baffle; the sleeve frame is located on one side of the roller conveyor and placed on the support platform, and the baffle is located on the other side of the sleeve frame relative to the roller conveyor and is used to prevent the sleeve frame from moving when a cylindrical lithium battery is inserted into the sleeve frame; the sleeve frame is formed by connecting a plurality of sleeve units side by side, and the sleeve units correspond one by one to the cylindrical lithium batteries for blanking on the roller conveyor; the pushing mechanism is located on the other side of the roller conveyor relative to the sleeve frame, and the pushing mechanism is used to push the cylindrical lithium batteries for blanking on the roller conveyor into the sleeve units. The present invention solves the problem of poor blanking stability caused by the mutual movement between multiple cylindrical lithium batteries.

Description

Technical Field

[0001] The present invention relates to the technical field of cylindrical lithium battery processing, and more specifically, to an automatic unloading device for cylindrical lithium batteries. Background Art

[0002] According to the filling material, cylindrical lithium batteries can be divided into lithium iron phosphate batteries, lithium cobalt oxide batteries, lithium manganese oxide batteries and cobalt manganese mixed batteries. According to the shell type, there are steel shell lithium batteries and polymer shell lithium batteries. Common cylindrical lithium-ion batteries are composed of shells, caps, positive electrodes, negative electrodes, diaphragms and electrolytes. Generally, the battery shell is the negative electrode of the battery, the cap is the positive electrode of the battery, and the battery shell is made of nickel-plated steel. Cylindrical lithium batteries are widely used in mobile phone power supplies, digital cameras, MP3s, laptops, car starters, power tools and other portable electronic products.

[0003] There are two common ways to unload cylindrical lithium batteries in an orderly manner during the processing of cylindrical lithium batteries. One is to use a manipulator to place the cylindrical lithium batteries in a tray for transfer and unloading, which has a low unloading efficiency. The other is to push one or more cylindrical lithium batteries into a designated basket for transfer and unloading. Since lithium batteries are cylindrical and easy to roll, and multiple cylindrical lithium batteries can move with each other, they are easy to collide and rub with each other when pushed in, and they are also easy to shake after entering the basket. The stability is extremely poor, and it is easy for cylindrical lithium batteries to tip over, fall, and wear.

[0004] In view of this, the present invention provides a novel automatic unloading device for cylindrical lithium batteries. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an automatic unloading device for cylindrical lithium batteries, which solves the problem that multiple cylindrical lithium batteries can move relative to each other, resulting in poor unloading stability.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic unloading device for cylindrical lithium batteries, comprising a support platform, a roller conveyor arranged on the support platform and used for horizontally conveying cylindrical lithium batteries, and also comprising a sleeve frame, a pushing mechanism and a baffle;

[0008] The sleeve rack is located on one side of the roller conveyor and is placed on the support platform, and the baffle is located on the other side of the sleeve rack relative to the roller conveyor and is used to prevent the sleeve rack from moving when the cylindrical lithium battery is inserted into the sleeve rack;

[0009] The sleeve frame is formed by connecting multiple sleeve units side by side, and the sleeve units correspond one by one to the cylindrical lithium batteries for discharging materials on the roller conveyor;

[0010] The pushing mechanism is located on the other side of the roller conveyor relative to the sleeve frame, and the pushing mechanism is used to push the cylindrical lithium batteries for discharging materials on the roller conveyor into the sleeve units.

[0011] Further preferably, it further includes a driving mechanism, an inclined conveyor and a storage frame;

[0012] The inclined conveyor is close to one side of the support platform and is used for obliquely downward conveying the storage frame. The driving mechanism is arranged on the support platform and is used to drive the baffle to rotate so that the baffle is obliquely lapped between the support platform and the storage frame, so that the cylindrical lithium batteries sleeved into the sleeve units can slide into the storage frame along the baffle.

[0013] Further preferably, the driving mechanism includes a motor, a rotating shaft, a first connecting rod, a fixed block, a second connecting rod and a fixed seat;

[0014] The motor, the fixed block and the fixed seat are all fixed on the support platform. One end of the rotating shaft is connected to the output shaft of the motor, and the other end passes through the fixed block and then is inserted into the fixed seat. One end of the first connecting rod is fixed on the rotating shaft, and the other end is rotatably connected to the second connecting rod. One end of the second connecting rod is rotatably connected to the first connecting rod, and the other end is rotatably connected to the side of the baffle away from the sleeve frame;

[0015] One side of the baffle is rotatably connected to the support platform.

[0016] Further preferably, side plates are fixed on both opposite sides of the baffle, and the two side plates are respectively located outside both ends of the sleeve frame.

[0017] Further preferably, it further includes a blanking frame;

[0018] The baffle is in contact with the outer side of the blanking frame. The blanking frame is open at both the top and the bottom. The blanking frame is located on one side of the roller conveyor and is fixed on the support platform. A plurality of the sleeve frames are stacked up and down in the blanking frame, and a gap for the sleeve frame to pass through is left between the bottom surface of the blanking frame and the support platform.

[0019] Further preferably, the sleeve unit includes a first collar, a second collar and a connecting plate;

[0020] The first sleeve ring and the second sleeve ring are both used to sleeved on the circumferential surface of the cylindrical lithium battery. The connecting plate is connected between the first sleeve ring and the second sleeve ring. A plurality of pressing protrusions are equidistantly arranged on the inner arc surfaces of the first sleeve ring and the second sleeve ring, so that the cylindrical lithium battery is pressed tightly within the first sleeve ring and the second sleeve ring;

[0021] The first sleeve ring and the second sleeve ring have the same inner and outer diameters.

[0022] Further preferably: Rollers are arranged on the outer surfaces of the first sleeve ring and the second sleeve ring, and the rollers are used to contact the support platform.

[0023] Further preferably: A groove for accommodating the sleeve frame is formed on the support platform. An arc-shaped groove adapted to the outer arc surfaces of the first sleeve ring and the second sleeve ring is arranged at the bottom of the groove. A plurality of arc-shaped grooves are equidistantly arranged along the length direction of the sleeve frame, and the arc-shaped grooves correspond to the sleeve units one by one in position;

[0024] Limit plates are arranged at both ends inside the groove. The limit plates are located at both ends of the sleeve frame and are used to prevent the sleeve frame from moving out from both ends of the groove.

[0025] Further preferably: A connecting column is fixed on the support platform, and a top plate is fixed on the top of the connecting column. The top plate is located above the roller conveyor, and the top plate is used to approach the cylindrical lithium battery on the roller conveyor.

[0026] Further preferably: The pushing mechanism includes a push plate, a cylinder and a base;

[0027] The cylinder is fixed on the support platform through the base. The cylinder is used to drive the push plate to horizontally reciprocate along the width direction of the roller conveyor. The push plate is located on the other side of the roller conveyor relative to the sleeve frame. The push plate is used to push the cylindrical lithium battery for blanking on the roller conveyor into the sleeve frame and is used to push the sleeve frame containing the cylindrical lithium battery onto the inclined baffle.

[0028] In summary, the present invention has the following beneficial effects:

[0029] The sleeve frame can fix multiple cylindrical lithium batteries row by row, locking the independent and scattered cylindrical lithium batteries in the sleeve units on the sleeve frame. The cylindrical lithium batteries fixed in the same sleeve frame are in a group. After the cylindrical lithium batteries are fixed in the sleeve frame, blanking and subsequent operations can be carried out according to each group of cylindrical lithium batteries, greatly improving the work efficiency, and can prevent the cylindrical lithium batteries from shaking, falling, tilting, etc., facilitating orderly production, reducing damage to the cylindrical lithium batteries and making blanking more convenient and orderly.

[0030] The cylindrical lithium batteries entering the storage frame will be placed in the storage frame row by row along the direction of the inclined downward conveyance of the storage frame, achieving orderly blanking. After being fixed by the sleeve frame, the cylindrical lithium batteries are more stable during blanking, not easily scattered, and are also more convenient and fast during the secondary transfer after entering the storage frame.

[0031] The baffle can not only be used to block the sleeve frame to prevent the sleeve frame from moving when the cylindrical lithium battery is inserted into the sleeve frame, but also serve as a bridging structure between the support platform and the inclined conveyor, enabling the cylindrical lithium battery to smoothly enter the storage frame from the roller conveyor. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of the embodiment, mainly used to show the overall structure of the automatic blanking device;

[0033] Figure 2 is a schematic structural diagram of the embodiment, mainly used to show the installation structure of the pushing mechanism and the blanking frame;

[0034] Figure 3 is a schematic structural diagram of the embodiment, mainly used to show the installation structure of the driving mechanism;

[0035] Figure 4 is a schematic structural diagram of the embodiment, mainly used to show the cooperation structure among the driving mechanism, the baffle, and the blanking frame;

[0036] Figure 5 is a schematic structural diagram of the embodiment, mainly used to show the cooperation structure between the sleeve frame and the support platform;

[0037] Figure 6 is Figure 5 an enlarged view of the structure A in, mainly used to show the cooperation structure between the sleeve frame and the support platform;

[0038] Figure 7 is a schematic structural diagram in the embodiment, mainly used to show the structure of the sleeve unit.

[0039] In the figure, 1, support platform; 2, support leg; 3, roller conveyor; 4, cylindrical lithium battery; 5, pushing mechanism; 51, push plate; 52, cylinder; 53, base; 6, blanking frame; 7, baffle; 8, driving mechanism; 81, motor; 82, rotating shaft; 83, first connecting rod; 84, fixed block; 85, second connecting rod; 86, fixed seat; 9, sleeve frame; 91, sleeve unit; 911, first collar; 912, second collar; 913, connecting plate; 914, abutting protrusion; 915, roller; 92, fixing plate; 10, inclined conveyor; 11, storage frame; 12, top plate; 13, connecting column; 14, side plate; 15, limiting plate; 16, groove; 17, arc groove. Detailed Implementation Manner

[0040] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0041] Embodiment: An automatic blanking device for cylindrical lithium batteries, as Figures 1-7 shown, comprising a support platform 1, a roller conveyor 3, a sleeve rack 9, a pushing mechanism 5, a baffle 7, a driving mechanism 8, an inclined conveyor 10, a storage frame 11 and a blanking frame 6. The roller conveyor 3 is arranged on the support platform 1 and is used for horizontally conveying the cylindrical lithium batteries 4. The roller conveyor 3 is a prior art, and its specific structure and working principle will not be described herein again. Legs 2 are provided at the bottom of the support platform 1, and the support platform 1 is supported on the basic plane through the legs 2. The sleeve rack 9 is located on one side of the roller conveyor 3 and is placed on the support platform 1. The sleeve rack 9 is formed by connecting a plurality of sleeve units 91 in parallel. The sleeve units 91 correspond one by one to the cylindrical lithium batteries 4 for blanking on the roller conveyor 3.

[0042] Preferably, the sleeve rack 9 includes a sleeve unit 91 and a fixing plate 92. The sleeve unit 91 is used for fixing the cylindrical lithium battery 4. A plurality of sleeve units 91 are arranged at equal intervals along the conveying direction of the roller conveyor 3. The fixing plate 92 is fixed between adjacent sleeve units 91. The sleeve unit 91 includes a first collar 911, a second collar 912 and a connecting plate 913. The fixing plate 92 is fixed on the first collar 911 and the second collar 912 between adjacent sleeve units 91. Both the first collar 911 and the second collar 912 are used for sleeving on the circumferential surface of the cylindrical lithium battery 4. A plurality of connecting plates 913 are provided and are respectively connected between the first collar 911 and the second collar 912. The inner and outer diameters of the first collar 911 and the second collar 912 are the same. The inner diameters of the first collar 911 and the second collar 912 are slightly larger than the diameter of the cylindrical lithium battery 4. The distance between the first collar 911 and the second collar 912 is less than the height of the cylindrical lithium battery 4. A plurality of abutting protrusions 914 are arranged at equal intervals on the inner arc surfaces of the first collar 911 and the second collar 912. The abutting protrusions 914 are used for abutting between the cylindrical lithium battery 4 and the first collar 911 or between the cylindrical lithium battery 4 and the second collar 912, so that the cylindrical lithium battery 4 can be abutted in the first collar 911 and the second collar 912 after being inserted into the sleeve unit 91. The abutting protrusions 914 can be hemispherical rubber protrusions, so as to prevent the surface of the cylindrical lithium battery 4 from being scratched, or can be elastic sheets or other forms.

[0043] In the above technical solution, the sleeve rack 9 can fix multiple cylindrical lithium batteries 4 row by row, locking the independent and scattered cylindrical lithium batteries 4 in the sleeve units 91 on the sleeve rack 9. The cylindrical lithium batteries 4 fixed in the same sleeve rack 9 are grouped together. After the cylindrical lithium batteries 4 are fixed on the sleeve rack 9, the blanking and subsequent operations can be carried out for each group of cylindrical lithium batteries 4, greatly improving the work efficiency, and preventing the cylindrical lithium batteries 4 from shaking, falling, tilting, etc., facilitating orderly production, reducing damage to the cylindrical lithium batteries 4 and making the blanking more convenient and orderly.

[0044] Preferably, a groove 16 for accommodating the sleeve rack 9 is provided on the support platform 1. An arc-shaped groove 17 adapted to the outer arc surfaces of the first collar 911 and the second collar 912 is provided at the bottom of the groove 16. The arc-shaped groove 17 is used for positioning so that the cylindrical lithium batteries 4 correspond to the sleeve units 91 one by one, facilitating the insertion of the cylindrical lithium batteries 4. A plurality of arc-shaped grooves 17 are arranged at equal intervals along the length direction of the sleeve rack 9, and the arc-shaped grooves 17 correspond to the positions of the sleeve units 91 one by one, so that each sleeve unit 91 falls within the arc-shaped groove 17. Limit plates 15 are provided at both ends inside the groove 16. The limit plates 15 are located at both ends of the sleeve rack 9 and are used to prevent the sleeve rack 9 from moving out of the two ends of the groove 16. One side of the groove 16 away from the roller conveyor 3 penetrates through the outside of the support platform 1 to facilitate the sleeve rack 9 being pushed out of the groove 16.

[0045] Refer to Figures 1-7 , the baffle 7 is located on the other side of the sleeve rack 9 relative to the roller conveyor 3 and is used to prevent the sleeve rack 9 from moving when the cylindrical lithium batteries 4 are inserted into the sleeve rack 9. The pushing mechanism 5 is located on the other side of the roller conveyor 3 relative to the sleeve rack 9. The pushing mechanism 5 is used to push the cylindrical lithium batteries 4 for blanking on the roller conveyor 3 into the sleeve units 91. The inclined conveyor 10 is close to one side of the support platform 1 and is used to convey the storage frame 11 obliquely downward. The storage frame 11 is a square or rectangular basket with an open top. When the storage frame 11 is conveyed by the inclined conveyor 10, the opening of the storage frame 11 faces the support platform 1. The inclined conveyor 10 can be a ramp belt conveyor, a chain conveyor or others, and the specific type is not limited. The driving mechanism 8 is arranged on the support platform 1 and is used to drive the baffle 7 to rotate so that the baffle 7 is obliquely lapped between the support platform 1 and the storage frame 11, facilitating the cylindrical lithium batteries 4 sleeved into the sleeve units 91 to slide into the storage frame 11 along the baffle 7. The cylindrical lithium batteries 4 entering the storage frame 11 will be placed row by row in the storage frame 11 along the direction of the oblique downward conveyance of the storage frame 11 in groups, realizing orderly blanking. After the cylindrical lithium batteries 4 are fixed by the sleeve rack 9, the blanking is more stable and not easy to loosen, and it is also more convenient and fast during the secondary transfer after entering the storage frame 11.

[0046] Preferably, the driving mechanism 8 includes a motor 81, a rotating shaft 82, a first connecting rod 83, a fixing block 84, a second connecting rod 85 and a fixing seat 86. The motor 81, the fixing block 84 and the fixing seat 86 are all fixed on the support platform 1. One end of the rotating shaft 82 is connected to the output shaft of the motor 81, and the other end passes through the fixing block 84 and is inserted into the fixing seat 86. The axial direction of the rotating shaft 82 is consistent with the conveying direction of the roller conveyor 3. One end of the first connecting rod 83 is fixed on the rotating shaft 82, and the other end is rotatably connected to the second connecting rod 85. One end of the second connecting rod 85 is rotatably connected to the first connecting rod 83, and the other end is rotatably connected to the side of the baffle 7 away from the sleeve rack 9. Specifically, a mounting plate is fixed on the side of the baffle 7 away from the sleeve rack 9. The mounting plates are located on the opposite sides of the baffle 7, and the second connecting rod 85 is rotatably connected to the mounting plate. The baffle 7 contacts the outer side of the blanking frame 6, and the lower side of the baffle 7 is rotatably connected to the support platform 1. The height position of the rotating shaft 82 is lower than the height position of the rotation connection between the baffle 7 and the support platform 1, so that when the rotating shaft 82 drives the baffle 7 to rotate, the baffle 7 can tilt downward toward the storage frame 11, facilitating the smooth fall of the sleeve rack 9 along the baffle 7 into the storage frame 11.

[0047] Preferably, side plates 14 are fixed on both opposite sides of the baffle 7. The two side plates 14 are respectively located outside the two ends of the sleeve rack 9 and are respectively in contact with the outer surfaces of the opposite sides of the blanking frame 6. The arrangement of the side plates 14 can, on the one hand, prevent the sleeve rack 9 from moving toward both ends when it is in the groove 16, and on the other hand, when the baffle 7 is tilted, it can also prevent the sleeve rack 9 from slipping off both sides of the baffle 7.

[0048] In order to enable the sleeve rack 9 inserted with the cylindrical lithium battery 4 to smoothly fall into the storage frame 11 along the inclined direction of the baffle 7 and to ensure that the sleeve units 91 can correspond to the arc-shaped grooves 17 one by one, preferably, a roller 915 is provided on the outer surfaces of both the first collar 911 and the second collar 912. The roller 915 is used to contact the bottom of the arc-shaped groove 17 on the support platform 1.

[0049] Refer to Figures 1-7 , a connecting column 13 is fixed on the support platform 1, and a top plate 12 is fixed on the top of the connecting column 13. The top plate 12 is located above the roller conveyor 3, and the bottom surface of the top plate 12 is close to the top surface of the cylindrical lithium battery 4 on the roller conveyor 3, so that the cylindrical lithium battery 4 on the roller conveyor 3 is pushed away by the pushing mechanism 5 along the width direction of the roller conveyor 3. The blanking frame 6 is open at both the top and the bottom. The blanking frame 6 is located on one side of the roller conveyor 3 and is fixed on the support platform 1. Specifically, a connecting column 13 is fixed on the top plate 12, and the blanking frame 6 is fixed to the top plate 12 through the connecting column 13, so that the blanking frame 6 is suspended above the groove 16. A plurality of sleeve racks 9 are stacked vertically in the blanking frame 6, and a gap for the sleeve rack 9 to pass through is left between the bottom surface of the blanking frame 6 and the support platform 1. The width of the gap is slightly larger than the outer diameters of the first collar 911 and the second collar 912.

[0050] Preferably, the pushing mechanism 5 includes a push plate 51, a cylinder 52, and a base 53. The cylinder 52 is fixed on the support platform 1 through the base 53. The cylinder 52 is used to drive the push plate 51 to reciprocate horizontally along the width direction of the roller conveyor 3. The push plate 51 is located on the other side of the roller conveyor 3 relative to the sleeve frame 9. The push plate 51 is used to push the cylindrical lithium battery 4 for blanking on the roller conveyor 3 into the sleeve frame 9 and to push the sleeve frame 9 containing the cylindrical lithium battery 4 onto the inclined baffle 7.

[0051] In the present invention, during blanking, the sleeve frames 9 are placed one by one into the blanking frame 6 in the manner that the rollers 915 face downward, so that the blanking frame 6 is stacked with sleeve frames 9 up and down. At this time, the lowermost sleeve frame 9 will fall into the gap between the blanking frame 6 and the support platform 1. Under the combined action of the groove 16, the arc-shaped groove 17, the rollers 915, and the limiting plate 15, the lowermost sleeve frame 9 is accurately positioned, so that the central axes of the first collar 911 and the second collar 912 coincide with the central axis of the cylindrical lithium battery 4 to be inserted. When the rollers of the roller conveyor 3 are fully loaded with the cylindrical lithium batteries 4 and reach the designated position, the roller conveyor 3 stops and the cylinder 52 starts. At this time, the push plate 51 will push the cylindrical lithium battery 4 to be blanked on the rollers into the first collar 911 and the second collar 912. After the cylindrical lithium battery 4 is inserted into the first collar 911 and the second collar 912, the cylinder 52 stops and the motor 81 starts. Under the cooperation of the first connecting rod 83 and the second connecting rod 85, the baffle 7 will gradually rotate from the vertical state towards the direction close to the storage frame 11 until the baffle 7 is inclined downward and the lower end is close to or located at the opening of the storage frame 11. After the baffle 7 is lapped between the support platform 1 and the storage frame 11, the motor 81 stops and the cylinder 52 starts, so that the push plate 51 continues to push forward, thereby pushing the sleeve frame 9 inserted with the cylindrical lithium battery 4 onto the baffle 7. At this time, the sleeve frame 9 inserted with the cylindrical lithium battery 4 will automatically fall into the storage frame 11 along the baffle 7. Then the push plate 51 gradually withdraws, and the baffle 7 will also gradually return to its original position. The storage frame 11 will also be conveyed obliquely downward by a certain distance so that the sleeve frame 9 inserted with the cylindrical lithium battery 4 can continue to fall. After the push plate 51 withdraws from below the blanking frame 6, the lowermost sleeve frame 9 inside the blanking frame 6 will automatically fall into the groove 16 to facilitate the continuous blanking of other cylindrical lithium batteries 4.

[0052] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic blanking device for cylindrical lithium batteries, comprising a support platform (1) and a roller conveyor (3) arranged on the support platform (1) and used for horizontally conveying cylindrical lithium batteries (4), characterized in that: It further includes a sleeve frame (9), a pushing mechanism (5) and a baffle (7); The sleeve frame (9) is located on one side of the roller conveyor (3) and placed on the support platform (1). The baffle (7) is located on the other side of the sleeve frame (9) relative to the roller conveyor (3) and is used to prevent the sleeve frame (9) from moving when the cylindrical lithium battery (4) is inserted into the sleeve frame (9); The sleeve frame (9) is formed by connecting a plurality of sleeve units (91) side by side. The sleeve units (91) correspond one by one to the cylindrical lithium batteries (4) for blanking on the roller conveyor (3); The pushing mechanism (5) is located on the other side of the roller conveyor (3) relative to the sleeve frame (9). The pushing mechanism (5) is used to push the cylindrical lithium battery (4) for blanking on the roller conveyor (3) into the sleeve unit (91); It further includes a driving mechanism (8), an inclined conveyor (10) and a storage frame (11); The inclined conveyor (10) is close to one side of the support platform (1) and is used to convey the storage frame (11) obliquely downward. The driving mechanism (8) is arranged on the support platform (1) and is used to drive the baffle (7) to rotate, so that the baffle (7) is obliquely lapped between the support platform (1) and the storage frame (11), facilitating the cylindrical lithium battery (4) sleeved into the sleeve unit (91) to slide into the storage frame (11) along the baffle (7).

2. The automatic blanking device for cylindrical lithium batteries according to claim 1, wherein: The driving mechanism (8) includes a motor (81), a rotating shaft (82), a first connecting rod (83), a fixing block (84), a second connecting rod (85) and a fixing seat (86); The motor (81), the fixing block (84) and the fixing seat (86) are all fixed on the support platform (1). One end of the rotating shaft (82) is connected to the output shaft of the motor (81), and the other end passes through the fixing block (84) and is inserted into the fixing seat (86). One end of the first connecting rod (83) is fixed on the rotating shaft (82), and the other end is rotatably connected to the second connecting rod (85). One end of the second connecting rod (85) is rotatably connected to the first connecting rod (83), and the other end is rotatably connected to the side of the baffle (7) away from the sleeve frame (9); One side of the baffle (7) is rotatably connected to the support platform (1).

3. The automatic blanking device for cylindrical lithium batteries according to claim 2, wherein: Both sides of the baffle (7) are fixed with side plates (14). The two side plates (14) are respectively located outside the two ends of the sleeve frame (9).

4. The automatic blanking device for cylindrical lithium batteries according to claim 1, wherein: It further includes a blanking frame (6); The baffle (7) is in contact with the outside of the blanking frame (6). The blanking frame (6) is open at both the top and the bottom. The blanking frame (6) is located on one side of the roller conveyor (3) and is fixed on the support platform (1). A plurality of the sleeve frames (9) are stacked up and down in the blanking frame (6). A gap for the sleeve frame (9) to pass through is left between the bottom surface of the blanking frame (6) and the support platform (1).

5. An automatic blanking device for cylindrical lithium batteries according to claim 1, characterized in that: The sleeve unit (91) includes a first collar (911), a second collar (912) and a connecting plate (913); The first set of rings (911) and the second set of rings (912) are both used to be sleeved on the circumferential surface of the cylindrical lithium battery (4). The connecting plate (913) is connected between the first set of rings (911) and the second set of rings (912). A plurality of pressing protrusions (914) are equidistantly arranged on the inner arc surfaces of the first set of rings (911) and the second set of rings (912), so that the cylindrical lithium battery (4) is pressed tightly within the first set of rings (911) and the second set of rings (912). The inner and outer diameters of the first set of rings (911) and the second set of rings (912) are the same.

6. The automatic blanking device for cylindrical lithium batteries according to claim 5, characterized in that: Rollers (915) are arranged on the outer surfaces of the first set of rings (911) and the second set of rings (912), and the rollers (915) are used to contact the support platform (1).

7. An automatic blanking device for cylindrical lithium batteries according to claim 6, characterized in that: A groove (16) for accommodating the sleeve frame (9) is formed on the support platform (1). An arc-shaped groove (17) adapted to the outer arc surfaces of the first set of rings (911) and the second set of rings (912) is arranged at the inner bottom of the groove (16). A plurality of arc-shaped grooves (17) are equidistantly arranged along the length direction of the sleeve frame (9), and the arc-shaped grooves (17) correspond to the sleeve units (91) one by one in position. Limit plates (15) are arranged at both ends inside the groove (16). The limit plates (15) are located at both ends of the sleeve frame (9) and are used to prevent the sleeve frame (9) from moving out of the groove (16) from both ends.

8. The automatic blanking device for cylindrical lithium batteries according to claim 1, wherein: A connecting column (13) is fixed on the support platform (1), and a top plate (12) is fixed at the top of the connecting column (13). The top plate (12) is located above the roller conveyor (3), and the top plate (12) is used to approach the cylindrical lithium battery (4) on the roller conveyor (3).

9. The automatic blanking device for cylindrical lithium batteries according to claim 2, wherein: The pushing mechanism (5) includes a push plate (51), a cylinder (52) and a base (53). The cylinder (52) is fixed on the support platform (1) through the base (53). The cylinder (52) is used to drive the push plate (51) to horizontally reciprocate along the width direction of the roller conveyor (3). The push plate (51) is located on the other side of the roller conveyor (3) relative to the sleeve frame (9). The push plate (51) is used to push the cylindrical lithium battery (4) for blanking on the roller conveyor (3) into the sleeve frame (9) and to push the sleeve frame (9) containing the cylindrical lithium battery (4) onto the inclined baffle (7).

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