Battery steel shell inner wall graphite spraying equipment

Abstract

The invention discloses battery steel shell inner wall graphite spraying equipment, and relates to the field of coating spraying, the battery steel shell inner wall graphite spraying equipment comprises a spraying workbench, a spraying part and a rotating part, the spraying workbench is provided with a first conveyor belt and a second conveyor belt, and a group of second limiting baffles are arranged between the first conveyor belt and the second conveyor belt; a first pushing air cylinder and a second pushing air cylinder are arranged at the positions, close to the first conveying belt and the second conveying belt, of the second limiting baffles correspondingly. The distance between an adjusting ring and a to-be-machined battery steel shell is adjusted at the same time, the adjusting ring and a connecting pipe are in a perpendicular state at the moment, a spraying pipe can conveniently stretch into and stretch out of the inner wall of the to-be-machined battery steel shell, and by adjusting the included angle between the adjusting ring and the connecting pipe, along with rotation of the connecting pipe, the spraying pipe reciprocates in the connecting pipe; and reciprocating spraying of the spraying pipe on the inner wall of the to-be-machined battery steel shell is achieved, the spraying uniformity of the inner wall of the battery steel shell is improved, and meanwhile the spraying device is suitable for spraying of the inner walls of the battery steel shells of different specifications.

Description

Technical Field

[0001] The invention relates to the field of coating spraying, and more specifically to a graphite spraying device for the inner wall of a battery steel shell. Background Art

[0002] As an important component of the battery, the inner wall of the battery steel shell usually needs to be treated with special coating to improve the performance and safety of the battery. Graphite coating is widely used on the inner wall of the battery to improve conductivity and corrosion resistance. However, in the prior art, when spraying cylindrical battery steel shells, vertical or horizontal spraying is usually adopted to the inner wall of the battery steel shell. However, both methods will cause most of the graphite slurry to adhere to the bottom inner wall of the battery steel shell under the action of gravity. The larger the battery steel shell, the greater the impact, making it difficult to achieve a uniform coating, resulting in unstable battery performance. For this reason, we designed a graphite spraying device for the inner wall of the battery steel shell. Summary of the invention

[0003] In view of the problem in the prior art that most of the graphite slurry adheres to the bottom inner wall of the battery steel shell under the action of gravity, making it difficult to achieve a uniform coating, resulting in unstable battery performance, the purpose of the present invention is to provide a graphite spraying device for the inner wall of a battery steel shell.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] A graphite spraying device for the inner wall of a battery steel shell comprises a spraying workbench, a spraying part and a rotating part, wherein a first conveyor belt and a second conveyor belt are arranged on the spraying workbench, a group of second limit baffles are arranged between the first conveyor belt and the second conveyor belt, a group of the second limit baffles are respectively provided with a first push cylinder and a second push cylinder near the first conveyor belt and the second conveyor belt, a placement slot is provided on the spraying workbench, a group of the second limit baffles are provided with placement holes at positions corresponding to the placement slot, a mounting frame is provided on the spraying workbench, and a plurality of battery steel shells to be processed are arranged on the first conveyor belt; The spraying unit is fixedly mounted on the mounting frame, and the spraying unit includes a spraying pipe for spraying the inner wall of the battery steel shell to be processed; The rotating part is fixedly mounted on the mounting frame and is used to cooperate with the spraying part to ensure the uniformity of the coating on the inner wall of the battery steel shell to be processed. Furthermore, the spraying unit further comprises: a spraying component, a driving component and an adjusting component; The spray assembly comprises: a graphite spray machine fixedly mounted on the mounting frame, the graphite spray machine is connected with a discharge pipe, one end of the discharge pipe away from the graphite spray machine is provided with a connecting pipe, a rotating joint is provided between the discharge pipe and the connecting pipe, the discharge pipe is rotatably connected to the connecting pipe through the rotating joint, the spray pipe is coaxially arranged in the connecting pipe, and the spray pipe is slidably connected to the connecting pipe; The driving assembly comprises: a second motor fixedly mounted on the graphite spray machine, the output end of the second motor is coaxially fixedly connected with a bevel gear 1, the connecting pipe is coaxially fixedly connected with a bevel gear 2, and the bevel gear 1 is meshed with the bevel gear 2; The adjustment assembly comprises: an electric telescopic rod and a first hydraulic rod installed on the graphite spray machine, the electric telescopic rod and the first hydraulic rod are both rotatably connected to the same adjustment ring at one end away from the graphite spray machine, a plurality of sliding guide holes are opened on the side wall of the connecting pipe, a mounting collar is coaxially sleeved on the outer side wall of the connecting pipe, a plurality of fixing rods are fixedly connected to the mounting collar, the plurality of fixing rods are respectively arranged in the plurality of sliding guide holes, and the ends of the plurality of fixing rods away from the mounting collar are fixedly connected to the spray pipe; A slide rod is fixedly connected to one end of the mounting collar close to the adjusting ring, an annular limiting groove is coaxially provided on the adjusting ring, and an end of the slide rod away from the mounting collar is arranged in the annular limiting groove; A plurality of sliding guide grooves are provided on the inner wall of the connecting tube, one end of the spray tube located in the connecting tube is coaxially fixedly connected with a mounting tube, a plurality of sliders are provided on the mounting tube, and the plurality of sliders are respectively arranged in the plurality of sliding guide grooves, a mounting ring is coaxially fixedly connected to the spray tube, a return spring is provided on the mounting ring, the return spring is coaxially sleeved on the outside of the spray tube, and the end of the return spring away from the mounting ring is fixedly connected to the inner wall of the connecting tube.

[0006] Furthermore, a plurality of spray heads are provided on the side wall of the spray tube and on one end of the spray tube close to the battery steel shell to be processed.

[0007] Further, the rotating part comprises: a second hydraulic rod vertically fixedly mounted on the mounting frame, a fixing assembly and a rotating assembly; The output end of the second hydraulic rod is fixedly connected to a fixing ring, and a mounting cavity is provided in the fixing ring; The fixing assembly comprises: a rotating ring installed in the installation cavity, the inner wall of the rotating ring is provided with a mounting groove, a fourth motor is provided in the installation groove, the output end of the fourth motor is coaxially fixedly connected with a bidirectional screw rod, a group of fixing clips is provided in the installation groove, a group of the fixing clips are provided with nut blocks at the bottom, and a group of the nut blocks are provided with threaded holes corresponding to the threads of the bidirectional screw rod; The rotating assembly includes: a driving gear installed in the installation cavity, a third motor fixedly installed on the outer wall of the fixed ring, an output end of the third motor is coaxially fixedly connected to the driving gear, and meshing teeth matching the teeth of the driving gear are coaxially provided on the outer wall of the rotating ring.

[0008] Furthermore, a first motor is fixedly installed on the spraying workbench, and the output end of the first motor is coaxially fixedly connected to a driving shaft, the first conveyor belt and the second conveyor belt are simultaneously and parallelly wound around the driving shaft, and the first conveyor belt and the second conveyor belt share a same driven shaft at one end away from the driving shaft.

[0009] Furthermore, a group of first limiting baffles are provided on both sides of the first conveyor belt and the second conveyor belt.

[0010] Furthermore, a pneumatic device is fixedly installed on the spraying workbench, and the pneumatic device is respectively connected to the first adsorption block and the second adsorption block, and the output ends of the first pushing cylinder and the second pushing cylinder are respectively fixedly connected to the first adsorption block and the second adsorption block, and the first adsorption block is located in a group of second limit baffles, and the second adsorption block is located in a group of first limit baffles close to the second pushing cylinder.

[0011] Furthermore, a control panel is provided on the spraying workbench, and the control panel is respectively connected to the first motor, the first pushing cylinder, the second pushing cylinder, the graphite sprayer, the second motor, the electric telescopic rod, the second hydraulic rod, the third motor and the fourth motor by electrical signals.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present application simultaneously adjusts the distance between the adjusting ring and the battery steel shell to be processed. At this time, the adjusting ring and the connecting tube are in a vertical state, which facilitates the spray tube to extend into and out of the inner wall of the battery steel shell to be processed. By adjusting the angle between the adjusting ring and the connecting tube, as the connecting tube rotates, the spray tube moves back and forth in the connecting tube, so that the spray tube can reciprocate on the inner wall of the battery steel shell to be processed, thereby improving the uniformity of the spraying of the inner wall of the battery steel shell. At the same time, it is suitable for spraying the inner walls of battery steel shells of different specifications.

[0013] (2) The present application uses a graphite sprayer to spray graphite slurry through a discharge pipe. Since the discharge pipe and the connecting pipe are rotatably connected via a rotary joint, the output end of the second motor drives bevel gear 1 to engage with bevel gear 2 coaxially fixedly connected to the connecting pipe. The spray pipe is slidably connected to the connecting pipe, and the spray pipe is communicated with the discharge pipe, thereby realizing a rotational spraying operation of the spray pipe on the inner wall of the battery steel shell to be processed.

[0014] (3) The present application uses a spraying unit to rotate and reciprocate the inner wall of the battery steel shell to be processed. At the same time, the rotating unit causes the battery steel shell to be processed to rotate in the opposite direction to the rotating spraying of the spraying unit, thereby preventing the graphite slurry from excessively adhering to the bottom inner wall of the battery steel shell to be processed under the action of gravity, thereby improving the uniformity of the spraying of the inner wall of the battery steel shell, ensuring the stable performance of the battery, and increasing the service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a graphite spraying device for the inner wall of a battery steel shell provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a spraying workbench of a battery steel shell inner wall graphite spraying equipment provided in an embodiment of the present application; Figure 3 A schematic diagram of the spraying working state of a graphite spraying device for the inner wall of a battery steel shell provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a spraying part of a battery steel shell inner wall graphite spraying device provided in an embodiment of the present application; Figure 5 for Figure 4 A magnified schematic diagram of the middle part; Figure 6 A schematic diagram of the internal structure of a spraying unit of a battery steel shell inner wall graphite spraying device provided in an embodiment of the present application; Figure 7 for Figure 6 The enlarged schematic diagram of the middle B part; Figure 8 A schematic diagram of the rotating part of a graphite spraying device for the inner wall of a battery steel shell provided in an embodiment of the present application; Fig. 9 A schematic diagram of the internal structure of the rotating part of a battery steel shell inner wall graphite spraying device provided in an embodiment of the present application.

[0016] Description of the numbers in the figure: 1. Spraying workbench; 11. First conveyor belt; 111. First motor; 12. Second conveyor belt; 13. First limit baffle; 14. Mounting frame; 15. First push cylinder; 151. First adsorption block; 16. Second limit baffle; 17. Second push cylinder; 171. Second adsorption block; 18. Placement slot; 2. Battery steel shell to be processed; 3. Spraying unit; 31. Graphite sprayer; 311. Discharging pipe; 32. Rotary joint; 33. Connecting pipe; 331. Sliding guide hole; 332. Sliding guide groove; 34. Spraying pipe; 341. Spraying head; 342. Mounting ring; 343. Reset spring; 344. Mounting pipe; 3441. Sliding block; 35. Second motor; 351. Bevel gear 1; 36. Electric telescopic rod; 361. First hydraulic rod; 37. Adjusting ring; 371. Annular limit groove; 38. Mounting collar; 381. Sliding rod; 39. Bevel gear 2; 4. Rotating part; 41. Second hydraulic rod; 42. Fixed ring; 421. Mounting cavity; 43. Rotating ring; 431. Mounting groove; 432. Bidirectional screw rod; 44. Fixed clamp; 45. Third motor; 451. Driving gear. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0018] Example 1, please refer to Figures 1 to 9 , which is the first embodiment of the present invention, and provides a battery steel shell inner wall graphite spraying device, which includes a spraying workbench 1, a spraying part 3 and a rotating part 4, a first conveyor belt 11 and a second conveyor belt 12 are provided on the spraying workbench 1, a group of second limit baffles 16 are provided between the first conveyor belt 11 and the second conveyor belt 12, a group of second limit baffles 16 are respectively provided with a first push cylinder 15 and a second push cylinder 17 near the first conveyor belt 11 and the second conveyor belt 12, a placement groove 18 is provided on the spraying workbench 1, a group of second limit baffles 16 are provided with placement holes at positions corresponding to the placement grooves 18, a mounting frame 14 is provided on the spraying workbench 1, and a plurality of battery steel shells 2 to be processed are provided on the first conveyor belt 11; A first motor 111 is fixedly installed on the spraying workbench 1, and the output end of the first motor 111 is coaxially fixedly connected to a driving shaft, and the first conveyor belt 11 and the second conveyor belt 12 are simultaneously and parallelly wound around the driving shaft, and the first conveyor belt 11 and the second conveyor belt 12 share a same driven shaft at one end away from the driving shaft; a group of first limit baffles 13 are provided on both sides of the first conveyor belt 11 and the second conveyor belt 12; During use: first, a batch of battery steel shells 2 to be processed are placed on the first conveyor belt 11, and the batch of battery steel shells 2 to be processed are transported to the second limit baffle 16 under the cooperation of the first conveyor belt 11 and the first limit baffle 13, and a negative pressure cavity is formed at the first adsorption block 151 by an external pneumatic device to adsorb the battery steel shells 2 to be processed, and then the output end of the first push cylinder 15 pushes the first adsorption block 151 to transport the adsorbed battery steel shells 2 to be processed to a fixed point above the placement slot 18; Then, the rotating part 4 here fixes and clamps the battery steel shell 2 to be processed, and moves it to a height that cooperates with the spraying part 3. The spraying part 3 rotates and reciprocates the inner wall of the battery steel shell 2 to be processed. At the same time, the rotating part 4 makes the battery steel shell 2 to be processed rotate in the opposite direction to the rotation and spraying of the spraying part 3, so as to avoid excessive adhesion of graphite slurry to the bottom inner wall of the battery steel shell 2 to be processed under the action of gravity, improve the uniformity of the spraying of the inner wall of the battery steel shell, ensure the stable performance of the battery, and increase the service life of the battery; When the battery steel shell 2 to be processed is completed spraying, the rotating part 4 resets it, and then the first pushing cylinder 15 pushes the sprayed battery steel shell to the second pushing cylinder 17 at a fixed point, and then the second pushing cylinder 17 and the second adsorption block 171 transport the sprayed battery steel shell to the second conveyor belt 12 at a fixed point. Here, the transmission of the first conveyor belt 11 and the second conveyor belt 12 is intermittently driven by the output end of the same first motor 111, which is convenient for the integration of the equipment, with reasonable and effective design and simple and convenient operation.

[0019] like Figures 1 to 3 As shown, a pneumatic device is fixedly installed on the spraying workbench 1, and the pneumatic device is respectively connected to the first adsorption block 151 and the second adsorption block 171, and the output ends of the first push cylinder 15 and the second push cylinder 17 are respectively fixedly connected to the first adsorption block 151 and the second adsorption block 171, and the first adsorption block 151 is located in a group of second limit baffles 16, and the second adsorption block 171 is located in a group of first limit baffles 13 close to the second push cylinder 17; A control panel is provided on the spraying workbench 1, and the control panel is respectively connected with the first motor 111, the first push cylinder 15, the second push cylinder 17, the graphite sprayer 31, the second motor 35, the electric telescopic rod 36, the second hydraulic rod 41, the third motor 45 and the fourth motor by electrical signals; The effect of this arrangement is that, by adopting an electric and automatic integrated design, automatic spraying operations are ensured for batches of battery steel shells 2 to be processed, thereby improving the spraying efficiency of the battery steel shells. The control panel adopts an integrated PLC controller to ensure precise control of the spraying time, speed and coating thickness.

[0020] Embodiment 2, as Figures 3 to 7As shown, it is a second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a spraying part 3 of a graphite spraying device for the inner wall of a battery steel shell. The spraying part 3 is fixedly mounted on a mounting frame 14. The spraying part 3 includes a spraying pipe 34 for spraying the inner wall of a battery steel shell 2 to be processed; the spraying part 3 also includes: a spraying assembly, a driving assembly and an adjusting assembly; The spraying assembly includes: a graphite spray machine 31 fixedly mounted on the mounting frame 14, a discharge pipe 311 connected to the graphite spray machine 31, a connecting pipe 33 is provided at one end of the discharge pipe 311 away from the graphite spray machine 31, a rotary joint 32 is provided between the discharge pipe 311 and the connecting pipe 33, the discharge pipe 311 is rotatably connected to the connecting pipe 33 through the rotary joint 32, a spraying pipe 34 is coaxially arranged in the connecting pipe 33, and the spraying pipe 34 is slidably connected to the connecting pipe 33; The driving assembly includes: a second motor 35 fixedly mounted on the graphite spray machine 31, the output end of the second motor 35 is coaxially fixedly connected with a bevel gear 1 351, the connecting pipe 33 is coaxially fixedly connected with a bevel gear 2 39, and the bevel gear 1 351 is meshed with the bevel gear 2 39; The adjustment assembly includes: an electric telescopic rod 36 and a first hydraulic rod 361 installed on the graphite spray machine 31, the electric telescopic rod 36 and the first hydraulic rod 361 are rotatably connected to the same adjustment ring 37 at one end away from the graphite spray machine 31, a plurality of sliding guide holes 331 are opened on the side wall of the connecting tube 33, a mounting collar 38 is coaxially sleeved on the outer wall of the connecting tube 33, a plurality of fixed rods are fixedly connected to the mounting collar 38, the plurality of fixed rods are respectively arranged in the plurality of sliding guide holes 331, and the ends of the plurality of fixed rods away from the mounting collar 38 are fixedly connected to the spray pipe 34, and a plurality of spray heads 341 are arranged on the side wall of the spray pipe 34 and the end of the spray pipe 34 close to the battery steel shell 2 to be processed; A slide bar 381 is fixedly connected to one end of the mounting collar 38 close to the adjusting ring 37. An annular limiting groove 371 is coaxially formed on the adjusting ring 37. An end of the slide bar 381 away from the mounting collar 38 is arranged in the annular limiting groove 371. A plurality of sliding guide grooves 332 are provided on the inner wall of the connecting tube 33, one end of the spraying tube 34 located in the connecting tube 33 is coaxially fixedly connected with a mounting tube 344, a plurality of sliders 3441 are provided on the mounting tube 344, and the plurality of sliders 3441 are respectively arranged in the plurality of sliding guide grooves 332, a mounting ring 342 is coaxially fixedly connected to the spraying tube 34, a return spring 343 is provided on the mounting ring 342, the return spring 343 is coaxially sleeved on the outer side of the spraying tube 34, and one end of the return spring 343 away from the mounting ring 342 is fixedly connected to the inner wall of the connecting tube 33; During use: the graphite slurry is sprayed out through the discharge pipe 311 by the graphite sprayer 31. Since the discharge pipe 311 is rotatably connected to the connecting pipe 33 through the rotary joint 32, the output end of the second motor 35 drives the bevel gear 1 351 to mesh with the bevel gear 2 39 coaxially fixedly connected to the connecting pipe 33, and the spray pipe 34 is slidably connected to the connecting pipe 33, and the spray pipe 34 is connected to the discharge pipe 311, so that the spray pipe 34 can perform a rotational spraying operation on the inner wall of the battery steel shell 2 to be processed; The distance between the adjusting ring 37 and the battery steel shell 2 to be processed is adjusted by the electric telescopic rod 36 and the output end of the first hydraulic rod 361 at the same time. At this time, the adjusting ring 37 and the connecting pipe 33 are in a vertical state, which facilitates the spraying pipe 34 to extend into and out of the inner wall of the battery steel shell 2 to be processed. By adjusting the angle between the adjusting ring 37 and the connecting pipe 33, the sliding rod 381 on the mounting ring 38 is limited and rolled with the annular limiting groove 371 on the adjusting ring 37, and the mounting ring 38 is connected to the spraying pipe 34 through the fixing rod. The tube 34 is coaxially fixedly connected, and the mounting ring 38 is slidably connected to the connecting tube 33 through the fixing rod and the sliding guide hole 331. Therefore, when the angle between the adjusting ring 37 and the connecting tube 33 is no longer vertical, as the connecting tube 33 rotates, the spraying tube 34 reciprocates in the connecting tube 33, so that the spraying tube 34 reciprocates on the inner wall of the battery steel shell 2 to be processed, thereby improving the uniformity of the spraying of the inner wall of the battery steel shell, and is suitable for spraying the inner walls of battery steel shells of different specifications.

[0021] Embodiment 3, as Figures 3 to 9 As shown, it is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a rotating part 4 of a graphite spraying device for the inner wall of a battery steel shell. The rotating part 4 is fixedly mounted on a mounting frame 14. The rotating part 4 is used to cooperate with the spraying part 3 to ensure the uniformity of the coating on the inner wall of the battery steel shell 2 to be processed; the rotating part 4 includes: a second hydraulic rod 41 vertically fixedly mounted on the mounting frame 14, a fixed component and a rotating component; Here, the output end of the second hydraulic rod 41 is fixedly connected to a fixing ring 42, and a mounting cavity 421 is provided in the fixing ring 42; The fixing assembly includes: a rotating ring 43 installed in the installation cavity 421, a mounting groove 431 is provided on the inner wall of the rotating ring 43, a fourth motor is provided in the installation groove 431, a bidirectional screw rod 432 is coaxially fixedly connected to the output end of the fourth motor, a group of fixing clips 44 are provided in the installation groove 431, a group of fixing clips 44 are provided with nut blocks at the bottom, and a group of nut blocks are provided with threaded holes corresponding to the threads of the bidirectional screw rod 432; The rotating assembly includes: a driving gear 451 installed in the installation cavity 421, a third motor 45 is fixedly installed on the outer wall of the fixed ring 42, the output end of the third motor 45 is coaxially fixedly connected with the driving gear 451, and the outer wall of the rotating ring 43 is coaxially provided with meshing teeth adapted to the teeth of the driving gear 451; When conveying the battery steel shell 2 to be processed, a placement groove 18 is provided on the spraying workbench 1, and a placement hole is provided at the position of the second limit baffle 16 corresponding to the placement groove 18, so as to facilitate the placement of the fixing ring 42, and when the bottom side wall of the fixing ring 42 fits the placement groove 18, the difference between the outer diameter and the inner diameter of the fixing ring 42 is less than the depth of the placement groove 18, so as to facilitate the placement of the battery steel shell 2 to be processed into the fixing ring 42; When the battery steel shell 2 to be processed is placed in the fixing ring 42, the output end of the fourth motor in the mounting groove 431 is controlled by the control panel to drive the bidirectional screw 432 to rotate, so that a set of fixing clamps 44 move relatively to fix and clamp the battery steel shell 2 to be processed, and then the output end of the second hydraulic rod 41 moves the battery steel shell 2 to be processed to a height that cooperates with the spraying part 3; When the spraying unit 3 is spraying the inner wall of the battery steel shell 2 to be processed, the output end of the third motor 45 drives the driving gear 451 to mesh with the teeth on the outer wall of the rotating ring 43, so that the battery steel shell 2 to be processed rotates in the opposite direction to the rotation spraying of the spraying unit 3, avoiding excessive adhesion of graphite slurry to the bottom inner wall of the battery steel shell 2 to be processed under the action of gravity, improving the uniformity of the spraying of the inner wall of the battery steel shell, ensuring the stable performance of the battery, and increasing the service life of the battery.

[0022] From the above, we can see that the working principle of this application is as follows: By opening a placement groove 18 on the spraying workbench 1, and opening a placement hole at the position of the second limit baffle 16 corresponding to the placement groove 18, it is convenient to place the fixing ring 42, and when the bottom side wall of the fixing ring 42 fits the placement groove 18, the difference between the outer diameter and the inner diameter of the fixing ring 42 is less than the depth of the placement groove 18, so that the battery steel shell 2 to be processed is conveniently placed in the fixing ring 42. When the battery steel shell 2 to be processed is placed in the fixing ring 42, the output end of the fourth motor in the installation groove 431 is controlled by the control board to drive the bidirectional screw rod 432 to rotate, so that a group of fixing clamps 44 move relatively, and the battery steel shell 2 to be processed is fixedly clamped. , and then the output end of the second hydraulic rod 41 is used to move the battery steel shell 2 to be processed to a height that cooperates with the spraying part 3; when the spraying part 3 is spraying the inner wall of the battery steel shell 2 to be processed, the output end of the third motor 45 drives the driving gear 451 to mesh with the teeth on the outer wall of the rotating ring 43, so that the battery steel shell 2 to be processed rotates in the opposite direction to the rotation spraying of the spraying part 3, so as to avoid excessive adhesion of the graphite slurry to the bottom inner wall of the battery steel shell 2 to be processed under the action of gravity, improve the uniformity of the spraying of the inner wall of the battery steel shell, ensure the stable performance of the battery, and increase the service life of the battery; When it is necessary to spray the inner wall of the battery steel shell 2 to be processed, the graphite slurry is sprayed out through the discharge pipe 311 by the graphite sprayer 31. Since the discharge pipe 311 is rotatably connected to the connecting pipe 33 through the rotary joint 32, the output end of the second motor 35 drives the bevel gear 1 351 to mesh with the bevel gear 2 39 coaxially fixedly connected to the connecting pipe 33, and the spray pipe 34 is slidably connected to the connecting pipe 33, and the spray pipe 34 is connected to the discharge pipe 311, so as to realize the rotation spraying operation on the inner wall of the battery steel shell 2 to be processed; By adjusting the distance between the adjusting ring 37 and the output end of the electric telescopic rod 36 and the first hydraulic rod 361, the distance between the adjusting ring 37 and the battery steel shell 2 to be processed is adjusted at the same time. At this time, the adjusting ring 37 and the connecting tube 33 are in a vertical state, which facilitates the spraying tube 34 to extend into and out of the inner wall of the battery steel shell 2 to be processed. By adjusting the angle between the adjusting ring 37 and the connecting tube 33, the sliding rod 381 on the mounting collar 38 and the annular limiting groove 371 on the adjusting ring 37 are limited and rolled. Since the mounting collar 38 is coaxially fixedly connected to the spraying tube 34 through the fixing rod, and the mounting collar 38 is slidingly connected to the connecting tube 33 through the fixing rod and the sliding guide hole 331, when the angle between the adjusting ring 37 and the connecting tube 33 is no longer in a vertical state, as the connecting tube 33 rotates, the spraying tube 34 moves back and forth in the connecting tube 33, so that the spraying tube 34 can spray back and forth on the inner wall of the battery steel shell 2 to be processed.

[0023] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A graphite spraying device for the inner wall of a battery steel shell, characterized in that: include: A spraying workbench (1), a spraying portion (3) and a rotating portion (4), wherein the spraying workbench (1) is provided with a first conveyor belt (11) and a second conveyor belt (12), a group of second limit baffles (16) are provided between the first conveyor belt (11) and the second conveyor belt (12), a group of the second limit baffles (16) are respectively provided with a first push cylinder (15) and a second push cylinder (17) near the first conveyor belt (11) and the second conveyor belt (12), a placement groove (18) is provided on the spraying workbench (1), a group of the second limit baffles (16) are provided with placement holes at positions corresponding to the placement grooves (18), a mounting frame (14) is provided on the spraying workbench (1), and a plurality of battery steel shells (2) to be processed are provided on the first conveyor belt (11); The spraying part (3) is fixedly mounted on a mounting frame (14), and the spraying part (3) comprises a spraying pipe (34) for spraying the inner wall of the battery steel shell (2) to be processed; The rotating part (4) is fixedly mounted on the mounting frame (14), and the rotating part (4) is used to cooperate with the spraying part (3) to ensure the uniformity of the coating on the inner wall of the battery steel shell (2) to be processed.

2. A battery steel shell inner wall graphite spraying device according to claim 1, characterized in that: The spraying part (3) further comprises: a spraying component, a driving component and an adjusting component; The spraying assembly comprises: a graphite spray machine (31) fixedly mounted on the mounting frame (14); a discharge pipe (311) is connected to the graphite spray machine (31); a connecting pipe (33) is provided at one end of the discharge pipe (311) away from the graphite spray machine (31); a rotating joint (32) is provided between the discharge pipe (311) and the connecting pipe (33); the discharge pipe (311) is rotatably connected to the connecting pipe (33) via the rotating joint (32); the spraying pipe (34) is coaxially arranged in the connecting pipe (33), and the spraying pipe (34) is slidably connected to the connecting pipe (33); The driving assembly comprises: a second motor (35) fixedly mounted on the graphite spray machine (31), the output end of the second motor (35) being coaxially fixedly connected to a bevel gear 1 (351), the connecting pipe (33) being coaxially fixedly connected to a bevel gear 2 (39), the bevel gear 1 (351) being meshed with the bevel gear 2 (39); The adjustment assembly comprises: an electric telescopic rod (36) and a first hydraulic rod (361) mounted on the graphite spray machine (31); the ends of the electric telescopic rod (36) and the first hydraulic rod (361) away from the graphite spray machine (31) are rotatably connected to the same adjustment ring (37); a plurality of sliding guide holes (331) are opened on the side wall of the connecting tube (33); a mounting collar (38) is coaxially sleeved on the outer side wall of the connecting tube (33); a plurality of fixed rods are fixedly connected to the mounting collar (38); the plurality of fixed rods are respectively arranged in the plurality of sliding guide holes (331); and the ends of the plurality of fixed rods away from the mounting collar (38) are fixedly connected to the spray pipe (34); A slide rod (381) is fixedly connected to one end of the mounting collar (38) close to the adjustment ring (37); an annular limiting groove (371) is coaxially formed on the adjustment ring (37); and an end of the slide rod (381) away from the mounting collar (38) is arranged in the annular limiting groove (371); A plurality of sliding guide grooves (332) are provided on the inner wall of the connecting tube (33); one end of the spray tube (34) located in the connecting tube (33) is coaxially fixedly connected to a mounting tube (344); a plurality of sliding blocks (3441) are provided on the mounting tube (344), and the plurality of sliding blocks (3441) are respectively arranged in the plurality of sliding guide grooves (332); a mounting ring (342) is coaxially fixedly connected to the spray tube (34); a return spring (343) is provided on the mounting ring (342); the return spring (343) is coaxially sleeved on the outside of the spray tube (34); and one end of the return spring (343) away from the mounting ring (342) is fixedly connected to the inner wall of the connecting tube (33).

3. A battery steel shell inner wall graphite spraying device according to claim 2, characterized in that: A plurality of spray heads (341) are provided on the side wall of the spray pipe (34) and on one end of the spray pipe (34) close to the battery steel shell (2) to be processed.

4. The graphite spraying equipment for the inner wall of a battery steel shell according to claim 1, characterized in that: The rotating part (4) comprises: a second hydraulic rod (41) vertically fixedly mounted on the mounting frame (14), a fixing component and a rotating component; The output end of the second hydraulic rod (41) is fixedly connected to a fixing ring (42), and a mounting cavity (421) is provided in the fixing ring (42); The fixing assembly comprises: a rotating ring (43) installed in the installation cavity (421), the inner wall of the rotating ring (43) being provided with a mounting groove (431), a fourth motor being provided in the installation groove (431), an output end of the fourth motor being coaxially fixedly connected with a bidirectional screw rod (432), a group of fixing clips (44) being provided in the installation groove (431), a group of the fixing clips (44) having nut blocks at the bottom thereof, and a group of the nut blocks having threaded holes corresponding to the threads of the bidirectional screw rod (432); The rotating assembly comprises: a driving gear (451) installed in the installation cavity (421); a third motor (45) is fixedly installed on the outer wall of the fixed ring (42); an output end of the third motor (45) is coaxially fixedly connected to the driving gear (451); and meshing teeth that match the teeth of the driving gear (451) are coaxially provided on the outer wall of the rotating ring (43).

5. The graphite spraying equipment for the inner wall of a battery steel shell according to claim 1, characterized in that: A first motor (111) is fixedly mounted on the spraying workbench (1); an output end of the first motor (111) is coaxially fixedly connected to a driving shaft; the first conveyor belt (11) and the second conveyor belt (12) are simultaneously and parallelly wound around the driving shaft; and the first conveyor belt (11) and the second conveyor belt (12) share a same driven shaft at their ends away from the driving shaft.

6. The graphite spraying equipment for the inner wall of a battery steel shell according to claim 5, characterized in that: A group of first limit baffles (13) are provided on both sides of the first conveyor belt (11) and the second conveyor belt (12).

7. The graphite spraying equipment for the inner wall of a battery steel shell according to claim 6, characterized in that: A pneumatic device is fixedly installed on the spraying workbench (1), and the pneumatic device is respectively connected to the first adsorption block (151) and the second adsorption block (171); the output ends of the first pushing cylinder (15) and the second pushing cylinder (17) are respectively fixedly connected to the first adsorption block (151) and the second adsorption block (171); the first adsorption block (151) is located in a group of second limit baffles (16), and the second adsorption block (171) is located in a group of first limit baffles (13) close to the second pushing cylinder (17).

8. A battery steel shell inner wall graphite spraying device according to any one of claims 1 to 7, characterized in that: The spraying workbench (1) is provided with a control panel, and the control panel is respectively connected to the first motor (111), the first pushing cylinder (15), the second pushing cylinder (17), the graphite spray machine (31), the second motor (35), the electric telescopic rod (36), the second hydraulic rod (41), the third motor (45), and the fourth motor by electrical signals.

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