A lithium-ion battery aluminum shell painting device

Abstract

The utility model discloses a lithium-ion battery aluminum shell painting device, which relates to the technical field of painting devices, including a conveying device, a spraying mechanism and a limiting tooling, a conveying belt of the conveying device is provided with a positioning groove, the spraying mechanism includes a spray gun and a fixed plate, the fixed plate is arranged on the side of the baffle of the conveying device, the spray gun is installed on the fixed plate and connected to the paint delivery box through a gear pump, a guide rod is provided on the conveying device, a top plate is provided on the top of the guide rod, a first cylinder is installed on the top plate, a lifting plate is provided at the lower end of the piston rod of the first cylinder and is slidably connected to the guide rod, and the limiting tooling is arranged on the lifting plate. The utility model uses the second cylinder on the limiting tooling to blow and expand the airbag in the elastic sponge, so that the battery aluminum shell is fixed on the elastic sponge, and then the battery aluminum shell is rotated by the rotating assembly, so that the battery aluminum shell is more comprehensively sprayed by the spraying mechanism, thereby avoiding the tooling fixture from blocking the surface of the battery aluminum shell during the clamping process.

Description

Technical Field

[0001] The utility model relates to the technical field of painting devices, in particular to a lithium ion battery aluminum shell painting device. Background Art

[0002] During the production process of lithium-ion aluminum shell batteries, a layer of blue film needs to be wrapped around the aluminum shell of the battery. It is a single-sided tape made of PSA (pressure-sensitive adhesive) on the back of a PET substrate. In addition to having certain isolation properties, this material also has the characteristics of waterproof, rust-proof, insulation, and high temperature resistance. Therefore, it has always been the best solution for the application of electrical insulation and physical protection of lithium-ion aluminum shell batteries. However, the thickness of this blue film is small, only between 0.015mm-0.20mm, and it is easy to have scratches, breakages, wrinkles and other defects during the production process. Some of these defects will affect the appearance of the product, and some may even damage the product function. In addition, the PSA back adhesive of the blue film has weak bonding performance, which can only reach 0.5-2Mpa, and it is easy to cause the blue film to fall off under external force impact. With the development of technology, the battery voltage is getting higher and higher, and the disadvantages of traditional blue films are gradually emerging. Therefore, new insulation materials are being sought at home and abroad. In recent years, major new energy manufacturers have fully turned to new ultraviolet photosensitive insulation coating materials (UV) in the insulation scheme of power batteries. The UV photosensitive coating process is a new battery cell insulation solution that produces no volatile organic compounds and contains no solvents. It has good insulation and adhesion, low flammability, and high durability after curing.

[0003] However, the limiting fixture on the existing painting device may block the surface of the battery aluminum shell when fixing the battery aluminum shell, resulting in inadequate painting on the surface of the battery aluminum shell, thereby affecting the final quality of the battery aluminum shell. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium-ion battery aluminum shell painting device to overcome the above-mentioned defects in the prior art.

[0005] A lithium-ion battery aluminum shell painting device includes a conveying device, a conveying belt of the conveying device is provided with a positioning groove for placing the battery aluminum shell, and also includes a spraying mechanism and a limiting tool. The spraying mechanism includes a spray gun and a fixed plate, the fixed plate is arranged on the side of the baffle of the conveying device, the spray gun is installed on the fixed plate and is connected to the paint box through a gear pump, four guide rods are arranged in a rectangular array on the baffles on both sides of the conveying device, the top of all the guide rods is provided with the same top plate, a first cylinder is installed on the top plate, the lower end of the piston rod of the first cylinder is provided with a lifting plate slidably connected to the guide rod, and the limiting tool is arranged on the lifting plate and is used to limit and rotate the battery aluminum shell.

[0006] Preferably, the positioning tooling comprises a cylinder body, a second air cylinder, an airbag and a rotating assembly. The cylinder body is rotatably connected to the lifting plate, and a push rod is slidably inserted therein. A piston is provided on the push rod in the cylinder body. An elastic sponge is provided on the cylinder body. The airbag is arranged in the elastic sponge and is connected to the air inlet and outlet of the cylinder body through a connecting pipe. The second air cylinder is installed on the connecting frame at the top of the lifting plate, and the lower end of its piston rod is connected to the push rod. The rotating assembly is arranged on the connecting frame and is used to drive the cylinder body to rotate.

[0007] Preferably, the rotating assembly comprises a driving motor, a worm and a worm gear. The driving motor is installed on the outside of the connecting frame, and a worm is installed on its output shaft. The worm meshes with the worm gear on the cylinder body.

[0008] Preferably, the connecting frame is of a "U"-shaped structure with the opening facing downward.

[0009] Preferably, the fixing plate is of an "L"-shaped structure.

[0010] The utility model has the following advantages:

[0011] When the utility model is in use, the airbag in the elastic sponge is inflated by the second air cylinder on the positioning tooling, so that the battery aluminum shell is fixed on the elastic sponge. Then, the battery aluminum shell is rotated by the rotating assembly, so that the battery aluminum shell can be more comprehensively sprayed by the spraying mechanism, thus avoiding the shielding of the surface of the battery aluminum shell during the clamping process by the tooling fixture. Brief Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the whole utility model.

[0013] Figure 2 and Figure 3 is a schematic structural diagram of the utility model from different angles.

[0014] Figure 4 is a schematic structural diagram of the cylinder body and the airbag of the utility model.

[0015] Figure 5 is a schematic structural diagram of the push rod and the piston of the utility model.

[0016] Wherein: 1. Conveyor device, 2. Spraying mechanism, 21. Fixing plate, 22. Spraying gun, 3. Guide rod, 4. Top plate, 5. First air cylinder, 6. Lifting plate, 7. Positioning tooling, 71. Cylinder body, 72. Push rod, 73. Piston, 74. Elastic sponge, 75. Airbag, 76. Connecting pipe, 77. Second air cylinder, 78. Connecting frame, 79. Rotating assembly, 791. Driving motor, 792. Worm, 793. Worm gear, 8. Battery aluminum shell. Detailed Embodiment

[0017] The following will further describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings through the description of embodiments, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the concept and technical solution of the present utility model.

[0018] As Figure 1-5 shown, the present utility model provides a painting device for an aluminum shell 8 of a lithium-ion battery, which includes a conveying device 1, a spraying mechanism 2 and a limiting tooling 7. A positioning groove for placing the battery aluminum shell 8 is provided on the conveyor belt of the conveying device 1. The spraying mechanism 2 includes a spraying gun 22 and a fixing plate 21. The fixing plate 21 is in an "L" shape and is arranged on the side of the baffle of the conveying device 1. The spraying gun 22 is installed on the fixing plate 21 and is connected to a paint supply tank through a gear pump. Four guide rods 3 are arranged in a rectangular array on the baffles on both sides of the conveying device 1. The same top plate 4 is provided at the tops of all the guide rods 3. A first cylinder 5 is installed on the top plate 4. The lower end of the piston rod 73 of the first cylinder 5 is provided with a lifting plate 6 which is slidably connected to the guide rods 3. The limiting tooling 7 is arranged on the lifting plate 6 and is used for limiting and rotating the battery aluminum shell 8.

[0019] It should be noted that the limiting tooling 7 includes a cylinder body 71, a second cylinder 77, an airbag 75 and a rotating assembly 79. The cylinder body 71 is rotatably connected to the lifting plate 6 and a push rod 72 is slidably inserted therein. A piston 73 is provided in the cylinder body 71 for the push rod 72. An elastic sponge 74 is provided on the cylinder body 71. The airbag 75 is arranged in the elastic sponge 74 and is connected to the air inlet and outlet of the cylinder body 71 through a connecting pipe 76. The second cylinder 77 is installed on a connecting frame 78 at the top of the lifting plate 6 and the lower end of its piston rod 73 is connected to the push rod 72. The connecting frame 78 is in a "U" shape and is arranged with the opening facing downwards. The rotating assembly 79 is arranged on the connecting frame 78 and is used for driving the cylinder body 71 to rotate.

[0020] In addition, the rotating assembly 79 includes a driving motor 791, a worm 792 and a worm gear 793. The driving motor 791 is installed outside the connecting frame 78 and a worm 792 is installed on its output shaft. The worm 792 meshes with the worm gear 793 on the cylinder body 71.

[0021] Specific implementation manners and principles:

[0022] In actual application, the battery aluminum shell 8 to be painted is placed in the positioning groove on the conveyor belt of the conveying device 1. When the proximity switch on the conveying device 1 detects that the battery aluminum shell 8 is conveyed to the right below the elastic sponge 74, the piston 73 of the first cylinder 5 is controlled to extend to drive the lifting plate 6 to move down along the guide rod 3, and the elastic sponge 74 is inserted into the battery aluminum shell 8. Then, the piston 73 of the second cylinder 77 is controlled to extend to drive the piston 73 on the push rod 72 to move in the cylinder body, and gas is pushed into the airbag 75. The elastic sponge 74 will be moved due to the gas. The capsule 75 expands and fills the battery aluminum shell 8. Then, the piston 73 of the first cylinder 5 is controlled to retract, driving the lifting plate 6 to move up a certain distance along the guide rod 3, so that the battery aluminum shell 8 is separated from the positioning groove on the conveyor belt. Then, the gear pump and the drive motor 791 are turned on, and the paint in the paint box is sprayed toward the battery aluminum shell 8 through the spray gun 22. At the same time, the output shaft of the drive motor 791 drives the worm wheel 793 and the cylinder 71 to rotate through the worm 792, and the battery aluminum shell 8 on the elastic sponge 74 rotates accordingly, so that the side of the elastic sponge 74 can be fully sprayed.

[0023] To sum up, the utility model uses the second cylinder 77 on the limiting tool 7 to blow and expand the airbag 75 in the elastic sponge 74, so that the battery aluminum shell 8 is fixed on the elastic sponge 74, and then the battery aluminum shell 8 is rotated by the rotating component 79, so that the battery aluminum shell 8 is more comprehensively sprayed by the spraying mechanism 2, thereby avoiding the tooling fixture from blocking the surface of the battery aluminum shell 8 during the clamping process.

[0024] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A lithium-ion battery aluminum shell painting device, comprising a conveying device (1), wherein a conveying belt of the conveying device (1) is provided with a positioning groove for placing the battery aluminum shell (8), characterized in that: It further includes a spraying mechanism (2) and a limiting tooling (7). The spraying mechanism (2) includes a spray gun (22) and a fixing plate (21). The fixing plate (21) is arranged on the side of the baffle of the conveying device (1). The spray gun (22) is installed on the fixing plate (21) and is connected to the paint supply tank through a gear pump. Four guide rods (3) are arranged in a rectangular array on the baffles on both sides of the conveying device (1). The same top plate (4) is provided at the tops of all the guide rods (3). A first cylinder (5) is installed on the top plate (4). The lower end of the piston (73) rod of the first cylinder (5) is provided with a lifting plate (6) that is slidably connected to the guide rods (3). The limiting tooling (7) is arranged on the lifting plate (6) and is used for limiting and rotating the battery aluminum shell (8).

2. A lithium-ion battery aluminum shell painting device according to claim 1, characterized in that: The limiting tooling (7) includes a cylinder body (71), a second cylinder (77), an airbag (75) and a rotating assembly (79). The cylinder body (71) is rotatably connected to the lifting plate (6) and a push rod (72) is slidably inserted therein. A piston (73) is arranged in the cylinder body (71) for the push rod (72). An elastic sponge (74) is provided on the cylinder body (71). The airbag (75) is arranged in the elastic sponge (74) and is connected to the air inlet and outlet of the cylinder body (71) through a connecting pipe (76). The second cylinder (77) is installed on a connecting frame (78) at the top of the lifting plate (6) and the lower end of its piston (73) rod is connected to the push rod (72). The rotating assembly (79) is arranged on the connecting frame (78) and is used for driving the cylinder body (71) to rotate.

3. A lithium-ion battery aluminum shell painting device according to claim 2, characterized in that: The rotating assembly (79) includes a driving motor (791), a worm (792) and a worm gear (793). The driving motor (791) is installed outside the connecting frame (78) and a worm (792) is installed on its output shaft. The worm (792) meshes with the worm gear (793) on the cylinder body (71).

4. A lithium-ion battery aluminum shell painting device according to claim 2, characterized in that: The connecting frame (78) is of a "U"-shaped structure with the opening facing downwards.

5. A lithium-ion battery aluminum shell painting device according to claim 1, characterized in that: The fixing plate (21) is of an "L"-shaped structure.

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