Lithium battery anode coating equipment

Abstract

The utility model belongs to the technical field of lithium battery production, and relates to lithium battery positive electrode coating equipment which comprises a supporting box body, a rotating shaft is rotationally connected in the supporting box body, six connecting rods are installed at the top of the rotating shaft, and clamping assemblies are installed at the ends, away from the rotating shaft, of the connecting rods. The clamping assembly comprises a fixing plate and a connecting shaft, the top of the connecting shaft is connected with the bottom of the fixing plate, and the bottom of the connecting shaft is rotationally connected to the connecting rod. According to the lithium battery coating device, stable clamping and fixing through the clamping assembly are beneficial to ensuring that a lithium battery does not move or incline in the coating process, so that the coating accuracy and uniformity are improved, the quality and performance of the lithium battery are finally improved, the lithium battery coating device can be adaptive to cylindrical lithium batteries with different diameters through the clamping assembly, and the coating efficiency is improved. Regardless of the diameter of the lithium battery, the clamping blocks can be adaptively adjusted through the elastic force of the spring telescopic rods, so that the lithium battery can be stably clamped.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery production technical field relates to a kind of lithium battery positive pole coating equipment. BACKGROUND

[0002] Lithium battery is a kind of with lithium metal or lithium alloy as negative electrode material, using non-aqueous electrolyte solution battery, lithium battery respectively with two compound that can reversibly insert, de-embed lithium ion as positive and negative pole constitutes secondary battery, i.e. lithium is always in the form of lithium ion in lithium battery, and will not appear in the form of metal lithium, cylindrical battery is one of them, when lithium battery production, need to give lithium battery positive and negative pole coating, lithium battery positive pole coating equipment is the equipment that gives lithium battery positive pole coating.

[0003] As patent CN213026196U discloses a kind of lithium battery positive pole coating equipment, the patent is by air blower and is blown to the surface of lithium battery on conveying belt, to blow off the dust on the surface of lithium battery, the dust that is blown up is mostly adsorbed on electrostatic adsorption plate, further sticks the dust on the surface of lithium battery by sticky roll, and the height of sticky roll is adjusted by rotating screw rod, the surface of lithium battery is cleaned before coating, so that the surface of lithium battery is more flat after coating. Coating roller can be self-adjusted according to the thickness of lithium battery, and the coating is more uniform on the surface of lithium battery by the spray of spray head and spring. Lithium battery can be dried after coating, so that the battery after coating is not easy to contaminate sundries.

[0004] When using the above technology, it is found that the prior art has the following technical problems: the lithium battery positive pole coating equipment lacks fixing structure when coating, such as coating the positive pole of cylindrical battery, which can cause the battery to fall over during coating, and the falling battery can cause the coating material to be unevenly distributed on the surface of the positive pole of the battery, resulting in uneven thickness, missing coating or overcoating, etc. This will directly affect the performance and life of the battery. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems: when coating, such as coating the positive pole of cylindrical battery, the conveying belt lacks fixing structure, which can cause the battery to fall over during coating, and the falling battery can cause the coating material to be unevenly distributed on the surface of the positive pole of the battery, resulting in uneven thickness, missing coating or overcoating, etc. This will directly affect the performance and life of the battery.

[0006] The utility model discloses a kind of positive pole coating equipment of lithium battery, including support box body, rotating shaft is rotatably connected in the support box body, six connecting rods are installed on the rotating shaft top, clamping assembly is installed on the end of connecting rod away from rotating shaft, the clamping assembly includes fixed plate and connecting shaft, the connecting shaft top is connected with the fixed plate bottom, the connecting shaft bottom is rotatably connected on connecting rod, four connecting blocks are installed in ring shape on the fixed plate, spring telescopic rod is installed on the connecting block, clamping block is installed on the end of spring telescopic rod away from connecting block, the clamping surface on the clamping block is set as arc.

[0007] First gear is installed on the rotating shaft bottom, second gear is engagedly connected on the side of first gear, first servo motor is connected on the second gear, and the first servo motor is installed in the support box body.

[0008] Fourth bevel gear is installed on the connecting shaft bottom, second servo motor is installed on the rotating shaft, drive shaft is installed on the output shaft of second servo motor, first bevel gear is installed on the drive shaft, and four second bevel gears are engagedly connected on the first bevel gear.

[0009] Mounting shaft is installed on the second bevel gear, four mounting shafts are rotatably connected on same rotating shaft, third bevel gear is installed on the end of mounting shaft away from rotating shaft, and the third bevel gear is engagedly connected with fourth bevel gear.

[0010] Connecting pipe is installed on the support box body, annular pipe is installed on the connecting pipe bottom, six spray heads are installed in ring shape on the annular pipe, air pump is installed on the connecting pipe, the air pump is installed on the support box body, and pipeline interface is installed on the connecting pipe.

[0011] Electric push rod is installed on one side in the support box body, cleaning brush is installed on the electric push rod, and air-drying fan is installed on the support box body top.

[0012] Compared with prior art, the utility model has the advantages that: through clamping assembly, stable clamping and fixing help to ensure that lithium battery does not move or tilt during coating, thereby improving the accuracy and uniformity of coating, ultimately improving the quality and performance of lithium battery, through clamping assembly, different diameter cylindrical lithium battery can be self-adapted, no matter the diameter of lithium battery, clamping block can be adaptively adjusted through the elastic force of spring telescopic rod, to ensure that lithium battery is clamped stably, through first servo motor and second servo motor, electric push rod and other automatic components, the system can realize automatic rotation, surface cleaning, coating and air-drying of lithium battery, greatly reducing manual operation and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the overall structure schematic view of the utility model,

[0014] Figure 2 is the structure schematic view of the utility model first servo motor and rotating shaft connection,

[0015] Figure 3 is the schematic view of the rotating shaft of the utility model,

[0016] Figure 4 is the structure schematic view of the utility model Figure 3 enlarged,

[0017] Figure 5 is the structure schematic view of the rotating shaft section of the utility model.

[0018] In the figure: 1, support box body;2, rotating shaft;3, connecting rod;41, fixed plate;42, connecting block;43, spring telescopic rod;44, clamping block;45, connecting shaft;6, first gear;7, second gear;8, first servo motor;9, second servo motor;10, drive shaft;11, first bevel gear;12, second bevel gear;13, mounting shaft;14, pipeline interface;15, air pump;16, connecting pipe;17, annular pipe;18, spray head;19, air-drying fan;20, third bevel gear;21, fourth bevel gear;22, electric push rod;23, cleaning brush. Specific implementation

[0019] Example one

[0020] As Figures 1-5 shown, including support box body 1, the rotating shaft 2 is rotationally connected in the support box body 1, the rotating shaft 2 top installs six connecting rods 3, the connecting rod 3 away from the rotating shaft 2 one end of installation has clamping assembly, the clamping assembly includes fixed plate 41 and connecting shaft 45, the connecting shaft 45 top and fixed plate 41 bottom are connected, the connecting shaft 45 bottom rotationally connects in connecting rod 3, the fixed plate 41 on installation presents annular installation four connecting blocks 42, the connecting block 42 on installation has spring telescopic rod 43, the spring telescopic rod 43 away from the connecting block 42 one end installation has clamping block 44, the clamping surface on clamping block 44 sets as arc, the clamping surface on clamping block 44 sets as arc, with the shape of lithium battery is matched, reduce the pressure concentration on the surface of lithium battery in the clamping process, reduce the risk of lithium battery damage;

[0021] When working, the positive electrode of the lithium battery is placed upward on the fixed plate 41, the bottom of the lithium battery presses the four clamping blocks 44, the top of the clamping block is set as a slope, so that the clamping block 44 on the fixed plate 41 is expanded through the elastic feature of the spring telescopic rod 43, and then the bottom of the lithium battery is placed, so that the four clamping blocks 44 are clamped through the elastic force of the spring telescopic rod 43, and then the lithium battery is clamped and fixed; through the clamping assembly, stable clamping and fixing can help to ensure that the lithium battery does not move or tilt during coating, thereby improving the accuracy and uniformity of coating, and finally improving the quality and performance of the lithium battery. Through the clamping assembly, the cylindrical lithium battery with different diameters can be self-adapted. No matter the size of the diameter of the lithium battery, the clamping block 44 can be adaptively adjusted through the elastic force of the spring telescopic rod 43, so as to ensure that the lithium battery is clamped stably.

[0022] Example two

[0023] As Figure 1 and Figure 3 , the bottom of the rotating shaft 2 is provided with a first gear 6, one side of the first gear 6 is engaged and connected with a second gear 7, the second gear 7 is connected with a first servo motor 8, and the first servo motor 8 is installed in the support box 1; When working, the lithium battery is placed on the fixed plate 41 of the clamping assembly, and is fixed by the clamping block 44, and then the first servo motor 8 drives the first gear 6 to rotate, the first gear 6 drives the second gear 7 engaged and connected therewith to rotate, the second gear 7 drives the rotating shaft 2 connected therewith to rotate on the support box 1, and then drives the connecting rod 3 connected therewith to rotate, the connecting rod 3 drives the lithium battery on the fixed plate 41 to rotate to the coating mechanism below for coating, and then another lithium battery is placed on the next fixed plate 41. In this way, four fixed plates 41 can place another lithium battery on the next fixed plate 41 while one lithium battery is being coated, which realizes the continuity of the coating process, reduces the waiting time, and improves the overall production efficiency.

[0024] Example three

[0025] As Figures 3-5The connecting shaft 45 is provided with a fourth bevel gear 21 at the bottom, the rotating shaft 2 is provided with a second servo motor 9, the output shaft of the second servo motor 9 is provided with a driving shaft 10, the driving shaft 10 is provided with a first bevel gear 11, the first bevel gear 11 is meshed with four second bevel gears 12, the second bevel gears 12 are provided with mounting shafts 13, the four mounting shafts 13 are rotatably connected to the same rotating shaft 2, the mounting shaft 13 is provided with a third bevel gear 20 at the end away from the rotating shaft 2, the third bevel gear 20 is meshed with the fourth bevel gear 21, the supporting box 1 is provided with a connecting pipe 16, the connecting pipe 16 is provided with an annular pipe 17 at the bottom, the annular pipe 17 is annularly provided with six spray heads 18, the connecting pipe 16 is provided with a gas pump 15, the gas pump 15 is mounted on the supporting box 1, and the connecting pipe 16 is provided with a pipe interface 14; before use, the pipe connected with the pipe interface 14 on the liquid storage tank is connected with the positive electrode of the external lithium battery, when the fixed plate 41 on the clamping assembly rotates to the position below the annular pipe 17 with the lithium battery, the connecting pipe 16 draws the positive electrode coating liquid of the external lithium battery into the annular pipe 17 through the pump body, and then the spray heads 18 on the annular pipe 17 spray out, at the same time of spraying, the second servo motor 9 drives the first bevel gear 11 on the driving shaft 10 to rotate, the first bevel gear 11 drives the second bevel gears 12 to rotate, the second bevel gears 12 drive the mounting shafts 13 connected thereto to rotate, the mounting shafts 13 drive the third bevel gears 20 at the other end of the rotating shaft 2 to rotate, the third bevel gears 20 drive the fourth bevel gears 21 to rotate, and then the fourth bevel gears 21 drive the connecting shafts 45 connected thereto to rotate, and then the connecting shafts 45 drive the fixed plate 41 to rotate on the connecting rod 3, the lithium battery clamped on the fixed plate 41 rotates synchronously, and the sprayed liquid sprayed by the spray heads 18 is more evenly coated on the surface of the lithium battery, the lithium battery is sprayed while rotating, so that the coating liquid is evenly distributed on the surface of the lithium battery and the coating quality is improved.

[0026] Example four

[0027] As Figure 1 and Figure 3The support box 1 is provided with an electric push rod 22 on one side, and a cleaning brush 23 is installed on the electric push rod 22, and a drying fan 19 is installed on the top of the support box 1; in operation, the first servo motor 8 drives the first gear 6 to rotate, the first gear 6 drives the second gear 7 connected therewith to rotate, the second gear 7 drives the rotating shaft 2 connected therewith to rotate on the support box 1, and then drives the connecting rod 3 connected therewith to rotate, the connecting rod 3 drives the lithium battery on the fixed plate 41 to rotate by 90 degrees, the second servo motor 9 drives the fixed plate 41 to rotate through the mounting shaft 13, so that the cleaning brush 23 on the electric push rod 22 brushes the surface of the lithium battery while the lithium battery rotates, the cleaning brush 23 brushes the surface of the lithium battery while the lithium battery rotates, which can effectively remove impurities and dirt on the surface of the lithium battery, after cleaning, the fixed plate 41 is rotated by 90 degrees for the spraying process, the rotating coating method can ensure that the coating material is uniformly distributed on the surface of the lithium battery, improve the coating quality, and then rotate by 90 degrees, the fixed plate 41 is rotated to below the drying fan 19, and then the second servo motor 9 drives the fixed plate 41 to rotate through the mounting shaft 13, so that the lithium battery rotates while being dried, the drying fan 19 dries while the lithium battery rotates, the rotating drying method can speed up the air flow speed and improve the drying efficiency of the surface of the lithium battery, thereby shortening the production cycle, the fixed plate 41 is rotated by 90 degrees to complete the coating of the positive electrode of the lithium battery, the coated lithium battery is removed, and the uncoated lithium battery is placed on the fixed plate 41 for coating, and so on; through the first servo motor 8, the second servo motor 9, the electric push rod 22 and other automatic components, the system can realize automatic rotation, surface cleaning, coating and drying of the lithium battery, greatly reducing manual operation and improving production efficiency.

[0028] The use process of the lithium battery positive electrode coating equipment is as follows: in working, the lithium battery positive electrode is placed upward on the fixed plate 41, the lithium battery bottom is pressed by the four clamping blocks 44, the clamping top is provided as a slope, and then the clamping block 44 on the fixed plate 41 is expanded through the elastic feature of the spring telescopic rod 43, the lithium battery bottom is placed again, the four clamping blocks 44 are clamped through the elastic force of the spring telescopic rod 43, and then the lithium battery is clamped and fixed; through the clamping assembly, stable clamping and fixing help to ensure that the lithium battery does not move or tilt in the coating process, thereby improving the accuracy and uniformity of coating, finally improving the quality and performance of the lithium battery; through the clamping assembly, the cylindrical lithium battery with different diameters can be self-adapted, no matter the diameter of the lithium battery, the clamping block 44 can be adaptively adjusted through the elastic force of the spring telescopic rod 43, and the lithium battery is stably clamped; the lithium battery is placed on the fixed plate 41 of the clamping assembly, is fixed through the clamping block 44, and then the first gear 6 is rotated by the first servo motor 8, the second gear 7 connected with the first gear 6 is rotated, the rotating shaft 2 connected with the second gear 7 is rotated on the support box body 1, then the connecting rod 3 connected with the rotating shaft 2 is rotated, the lithium battery on the fixed plate 41 is rotated to the coating mechanism below for coating, another lithium battery is placed on the next fixed plate 41, and the above process is repeated; when the fixed plate 41 on the clamping assembly rotates to the lower side of the annular pipe 17 with the lithium battery, the connecting pipe 16 draws the lithium battery positive electrode coating liquid outside into the annular pipe 17 through the pump body, and then the spray head 18 on the annular pipe 17 sprays, simultaneously, the first bevel gear 11 on the driving shaft 10 is rotated by the second servo motor 9, the second bevel gear 12 is rotated by the first bevel gear 11, the mounting shaft 13 connected with the second bevel gear 12 is rotated, the other end third bevel gear 20 is rotated by the rotating shaft 2, the fourth bevel gear 21 is rotated by the third bevel gear 20, then the connecting shaft 45 connected with the fourth bevel gear 21 is rotated, then the fixed plate 41 is rotated on the connecting rod 3, the lithium battery clamped on the fixed plate 41 is synchronously rotated, and the sprayed liquid sprayed by the spray head 18 is coated more uniformly on the surface of the lithium battery.

[0029] In the utility model, the description of the structure direction and relative position relation, such as the description of before, after, left, right, up and down, does not constitute the limitation to the utility model, and is only convenient for description.

Claims

1. A lithium battery cathode coating apparatus, characterized by: The utility model provides a kind of six-axis automatic wafer clamping device, including support box (1), rotating shaft (2) is rotatably connected in the support box (1), six connecting rods (3) are installed on the top of rotating shaft (2), clamping assembly is installed on the end of connecting rod (3) away from rotating shaft (2), the clamping assembly includes fixed plate (41) and connecting shaft (45), the bottom of connecting shaft (45) is connected with the bottom of fixed plate (41), the bottom of connecting shaft (45) is rotatably connected on connecting rod (3), four connecting blocks (42) are installed on the fixed plate (41) and are installed in annular, spring telescopic rod (43) is installed on the connecting block (42), clamping block (44) is installed on the end of spring telescopic rod (43) away from connecting block (42), the clamping surface on clamping block (44) is set as arc.

2. The lithium battery cathode coating apparatus of claim 1, wherein: The bottom of rotating shaft (2) is installed with first gear (6), second gear (7) is engagedly connected on one side of first gear (6), first servo motor (8) is connected on second gear (7), and first servo motor (8) is installed in support box (1).

3. The lithium battery cathode coating apparatus of claim 1, wherein: The bottom of connecting shaft (45) is installed with fourth bevel gear (21), second servo motor (9) is installed on rotating shaft (2), drive shaft (10) is installed on the output shaft of second servo motor (9), first bevel gear (11) is installed on drive shaft (10), and four second bevel gears (12) are engagedly connected on first bevel gear (11).

4. The lithium battery cathode coating apparatus of claim 3, wherein: Mounting shaft (13) is installed on second bevel gear (12), four mounting shafts (13) are rotatably connected on same rotating shaft (2), third bevel gear (20) is installed on the end of mounting shaft (13) away from rotating shaft (2), and third bevel gear (20) and fourth bevel gear (21) are engagedly connected.

5. The lithium battery cathode coating apparatus of claim 1, wherein: Connecting pipe (16) is installed on the support box (1), annular pipe (17) is installed on the bottom of connecting pipe (16), six spray heads (18) are installed in annular on annular pipe (17), air pump (15) is installed on connecting pipe (16), air pump (15) is installed on support box (1), and pipeline interface (14) is installed on connecting pipe (16).

6. The lithium battery cathode coating apparatus of claim 1, wherein: Electric push rod (22) is installed on one side in the support box (1), cleaning brush (23) is installed on electric push rod (22), and air-drying fan (19) is installed on the top of support box (1).

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