Automatic dust removal device for lithium battery processing shell

Abstract

The application relates to the technical field of lithium battery shell dust removal, and particularly discloses an automatic shell dust removal device for lithium battery processing, which comprises a conveying structure, a first dust removal device and a second dust removal device. The conveying structure can convey soft-shell lithium batteries. The first dust removal device is arranged on the top surface of the bottom of the front end of the conveying structure, and can remove dust from the four side surfaces of the soft-shell lithium battery. The second dust removal device is arranged on the top surface of the top of the rear end of the conveying structure, and can cooperate with the first dust removal device to remove dust from the soft-shell lithium battery without dead angle. The automatic shell dust removal device for lithium battery processing is designed by means of the cooperation of multiple components and the adjustable and self-cleaning structure, effectively improves the many shortcomings of the traditional dust removal mode, improves the comprehensiveness, adaptability and operation continuity of dust removal, and can better meet the dust removal requirements of high quality and high precision of the soft-shell lithium battery.

Description

Technical Field

[0001] This invention relates to the field of lithium battery casing dust removal technology, specifically to an automatic dust removal device for lithium battery casings. Background Technology

[0002] With the development of new energy vehicles, energy storage systems, and consumer electronics industries, the safety and reliability of lithium batteries have received much attention. As a key packaging structure, the cleanliness of the soft casing directly affects battery performance and lifespan. Dust and debris easily remain in the soft casing during stamping, injection molding, and other processing. If not thoroughly removed, this can lead to internal short circuits, insulation failure, and other problems. Therefore, dust removal is a crucial step in lithium battery processing. Currently, the industry mostly uses traditional methods and simple automated devices for dust removal of lithium battery soft casings, which have many shortcomings and cannot meet the demands of high-precision, large-scale production. Specific problems are as follows: First, the dust removal effect is poor, there are dead corners in clamping, and the precision is insufficient. Most existing devices are single dust removal structures, which cannot fully cover all six sides of the shell, and pollutants are easily left behind. In addition, the driving components have low precision and lack effective limit self-locking, which can easily lead to loosening and displacement, and cannot meet the high-precision cleanliness requirements. Second, it has poor versatility and is difficult to adapt to multiple specifications of soft shells; lithium battery soft shells are diverse in size and thickness, but existing devices are mostly fixed structures that can only adapt to a single specification. Replacing equipment or parts increases costs and reduces efficiency, and cannot meet the needs of multi-station synchronous operation. Third, it cannot operate continuously and is inefficient; dust-adhesive parts require shutdown for cleaning and replacement after accumulating dust, interrupting production; manual blowing and wiping methods are inefficient, inconsistent, and prone to missed inspections, affecting production progress. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic dust removal device for the casing of lithium batteries to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: comprising: a conveying structure, a first dust removal device, and a second dust removal device; the conveying structure is capable of conveying a soft-shell lithium battery; the first dust removal device is disposed near the bottom top surface of the front end of the conveying structure, and the first dust removal device is capable of removing dust from the four sides of the soft-shell lithium battery; the second dust removal device is disposed at the top top surface of the rear end of the conveying structure, and the second dust removal device is capable of cooperating with the first dust removal device to clean and remove dust from the soft-shell lithium battery without any clamping dead corners, and is applicable to dust removal of soft-shell lithium batteries of different sizes.

[0005] Preferably, for the purpose of fixing and conveying the soft shell of the lithium battery, the conveying structure includes: an L-shaped support base plate, an automatic slide table, a first automatic rotating platform, and an automatic dust removal spraying mechanism. The L-shaped support base plate is used to support the top surface connecting component; the automatic slide table is disposed at the longitudinal center of the front end of the top surface of the L-shaped support base plate; the first automatic rotating platform is disposed on the moving end of the automatic slide table; the automatic dust removal spraying mechanism is disposed on the top surface of the L-shaped support base plate near the front end, and the top of the automatic dust removal spraying mechanism is fitted around the top of the automatic slide table near the center and at a certain distance.

[0006] Preferably, in order to scrape and clean the two second dust-adhesive rollers, the conveying structure further includes: a tripod, a support plate, a first concave support plate, small electric push rods, and scrapers. The tripod is located at the rear end of the top surface of the L-shaped support substrate; the support plate is located at the right end of the top surface of the L-shaped support substrate; the first concave support plate is located at the left end of the top surface of the support plate; there are two small electric push rods, which are symmetrically arranged at the upper and lower ends of the inner wall of the first concave support plate; there are two scrapers, which are respectively arranged at the pushing ends of the two small electric push rods.

[0007] Preferably, to provide installation and operating space for the first drive assembly, the first dust removal device includes: a first high-precision electric push rod, a rectangular block, a chamber, an L-shaped moving groove, a rectangular moving groove, and a first drive assembly. The first high-precision electric push rod is disposed on the front end of the top face of the L-shaped support substrate near the center. The rectangular block is disposed at the pushing end of the first high-precision electric push rod. A chamber is formed inside the rectangular block. L-shaped moving grooves are formed at one bottom end of both sides of the outer wall of the rectangular block, and the two L-shaped moving grooves are staggered and extend into the chamber. Rectangular moving grooves are formed at the other bottom end of both sides of the outer wall of the rectangular block, and the two rectangular moving grooves are staggered and extend into the chamber. The first drive assembly is disposed at the center of the bottom surface of the inner wall of the chamber. The two output ends of the first drive assembly are respectively embedded in the bottom ends of the two L-shaped moving grooves, and the two output ends of the first drive assembly extend a portion outward from the two L-shaped moving grooves. The two output ends of the first drive assembly can be limited to move along the inner wall of the bottom end of the L-shaped moving groove.

[0008] Preferably, in order to remove dust from the four sides of the lithium battery soft shell, the first dust removal device further includes: connecting blocks, support blocks, second automatic rotating platforms, and first dust-adhesive rollers. Two connecting blocks are respectively disposed on the two output ends of the first drive assembly. Each connecting block is matched with one of the two L-shaped moving slots and can be limited to move along the inner wall of the two L-shaped moving slots. Two support blocks are respectively disposed on the top surface of the two connecting blocks. Two second automatic rotating platforms are respectively symmetrically disposed at one end of the top surface of the two support blocks. Two first dust-adhesive rollers are respectively symmetrically disposed on the rotating ends of the two second automatic rotating platforms.

[0009] Preferably, in order to drive the two first dust-removing rollers to remove dust from the soft casing of the lithium battery, the first driving assembly includes: a gear, a first flat brake motor, a rack, and an L-shaped limiting block. The gear is disposed at the center of the bottom surface of the inner wall of the chamber via a first bearing; the first flat brake motor is disposed at the center of the top surface of the inner wall of the chamber, and the output end of the first flat brake motor is connected and fixed to the center of the top surface of the gear; there are two racks, which are staggered at both ends of the outer diameter of the gear. The two racks are respectively embedded in the bottom ends of two L-shaped moving slots, and the two racks can be limited to move along the inner wall of the bottom end of the two L-shaped moving slots. One side of the outer wall of the two racks contacts the bottom ends of the front and rear sides of the inner wall of the chamber, respectively. One end of each rack can be limited to move along the inner wall of the two rectangular moving slots; there are two L-shaped limiting blocks, which are respectively sleeved on the outer wall of the two racks near the center. The two ends of the two L-shaped limiting blocks are respectively fixedly connected to the bottom ends of the front and rear sides of the inner wall of the chamber and the bottom ends of the inner wall. The two racks can be limited to move along the inner wall of the two L-shaped limiting blocks. The top surface of the other end of the two L-shaped limiting blocks is respectively connected and fixed to the bottom surface of the two connecting blocks. The rotation of the first flat brake motor can drive the gear to rotate and drive the two racks to move limited to move within the two L-shaped limiting blocks and the two L-shaped moving slots, so that the two racks respectively drive the connecting block, the support block, the second automatic rotating platform and the first dust roller to move limited and expand or contract with each other.

[0010] Preferably, for dust removal from the top and bottom surfaces of the lithium battery soft casing, the second dust removal device includes: a second high-precision electric push rod, an L-shaped support plate, a second drive assembly, a support connecting plate, a second dust-adhesive roller, and a second flat brake motor. The second high-precision electric push rod is disposed at the top left side of the outer wall of the support plate; the L-shaped support plate is disposed at the pushing end of the second high-precision electric push rod; the second drive assembly is disposed at the left end of the L-shaped support plate; there are two support connecting plates, symmetrically disposed on the two output ends of the second drive assembly; there are two second dust-adhesive rollers, symmetrically disposed on the left side of the outer wall of the two support connecting plates via two second bearings; there are two second flat brake motors, symmetrically disposed on the right side of the outer wall of the two support connecting plates, and the output ends of the two second flat brake motors are respectively connected and fixed to the center of the right end of the two second dust-adhesive rollers.

[0011] Preferably, for driving the two second dust-removing rollers, the second driving assembly includes: a second concave support plate, a bidirectional ball screw, a brake motor, a round rod, ball nuts, and a limiting ring. The second concave support plate is disposed at the left end of the L-shaped support plate; the bidirectional ball screw is disposed between one end of the second concave support plate via two third bearings; the brake motor is disposed at one end of the top surface of the second concave support plate, and the output end of the brake motor is connected and fixed to the center of the top end of the bidirectional ball screw; the round rod is disposed between the other end of the second concave support plate; there are two ball nuts, which are symmetrically sleeved on the outer walls of both ends of the bidirectional ball screw, and the two ball nuts are respectively connected to the outer walls of the bidirectional ball screw at both ends. The two ball nuts are engaged, and can move along the outer walls of both ends of the bidirectional ball screw. One end of the outer diameter of the two ball nuts is fixedly connected to the center of the rear side of the outer wall of the two supporting connecting plates. There are two limiting rings, which are symmetrically arranged at the other end of the outer diameter of the two ball nuts. The two limiting rings are respectively sleeved on both ends of the outer wall of the rod, and the two limiting rings can move along the outer wall of the rod. The brake motor can drive the bidirectional ball screw to rotate, so that the bidirectional ball screw drives the two ball nuts to move synchronously through the cooperation of the two limiting rings and the brake motor, thereby driving the two supporting connecting plates, the two second dust rollers and the two second flat brake motors to move synchronously.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention constructs a comprehensive dust removal system through the coordinated operation of a first dust removal device and a second dust removal device, thoroughly solving the problem of incomplete dust removal caused by dead corners in traditional dust removal devices. The first dust removal device precisely removes dust from the four sides of the lithium battery soft shell. A first drive component drives two first adhesive rollers to expand or contract synchronously in a staggered manner, while a first automatic rotating platform drives the lithium battery to rotate, ensuring thorough cleaning of all four sides of the soft shell. The second dust removal device cleans the top and bottom surfaces of the soft shell. A second drive component drives two second adhesive rollers to contract or expand synchronously, complementing the first dust removal device and achieving full coverage of all six sides, eliminating dead corners. Simultaneously, each drive component employs high-precision drive parts such as high-precision electric push rods, bidirectional ball screws, and flat brake motors, combined with multiple limit switches and motor self-locking functions, ensuring precise component positioning and smooth movement, avoiding dust removal deviations, significantly improving dust removal accuracy and quality, and meeting the requirements of high-precision processing.

[0013] 2. This invention, through its adjustable structural design, breaks through the limitation of traditional dust removal devices that are only compatible with a single type of lithium battery, thus achieving wide versatility. In the first dust removal device, the L-shaped moving groove of the rectangular block, in conjunction with the gear and double rack transmission of the first drive component, can drive the two first dust-adhesive rollers to flexibly adjust their distance, adapting to four-sided dust removal for lithium batteries of different sizes. In the second dust removal device, the bidirectional ball screw and ball nut cooperate to drive the two second dust-adhesive rollers to synchronously and symmetrically extend and retract, adapting to the top and bottom dust removal for lithium batteries of different thicknesses. In addition, the automatic slide of the conveying structure can be modularly expanded, adding slide units to adapt to multi-station, multi-specification synchronous operation, improving the scope of application and flexibility.

[0014] 3. This invention solves the problem of dust accumulation in the sticky parts of traditional dust removal devices and the need for frequent shutdowns for cleaning through targeted cleaning structure design, achieving continuous dust removal and improving work efficiency; when dust accumulates on the outer wall of the first sticky roller, it is driven to reset by the first high-precision electric push rod, and the undusted outer wall can be used to continue working. The dusty part can be quickly scraped off and reset by the robotic arm without stopping the machine; when dust accumulates on the left end of the second sticky roller, it is driven to move to the left to replace the outer wall by the second high-precision electric push rod, and the dusty end moves between the scrapers. The small electric push rod drives the scraper to rotate in conjunction with the sticky roller to complete the cleaning, realizing cleaning while working. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the conveying structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A inside; Figure 4 This is a schematic diagram of the first concave support plate connecting component within the conveying structure of the present invention; Figure 5 This is a schematic diagram showing the position and structure of the first dust removal device of the present invention; Figure 6 for Figure 5 Enlarged view of point B inside; Figure 7 This is a schematic diagram of the cross-sectional structure of the rectangular block inside the first dust removal device of the present invention; Figure 8 This is a schematic diagram of the internal structure of the rectangular block in the first dust removal device of the present invention. Figure 9 This is a schematic diagram showing the disassembled structure of the connecting components of the two first dust-adhesive rollers in the first dust removal device of the present invention; Figure 10 This is a schematic diagram showing the position and structure of the second dust removal device of the present invention; Figure 11 for Figure 10 Enlarged view of point C inside; Figure 12 This is a schematic diagram of the disassembled structure of the connecting components of the support connecting plate in the second dust removal device of the present invention; Figure 13 This is a schematic diagram of the disassembled structure of the connecting component of the second concave support plate in the second drive assembly of the present invention; Figure 14 This is a schematic diagram of the second drive component structure within the second dust removal device of the present invention.

[0016] In the figure: 1. Conveying structure; 11. L-shaped support plate; 12. Automatic slide table; 13. First automatic rotating platform; 14. Automatic dust removal spraying mechanism; 15. Four-legged frame; 16. Support plate; 17. First concave support plate; 18. Small electric push rod; 19. Scraper; 2. First dust removal device; 21. First high-precision electric push rod; 22. Rectangular block; 23. Chamber; 24. L-shaped moving groove; 25. Rectangular moving groove; 26. First drive assembly; 261. Gear; 262. First flat brake motor; 263. Rack; 264. L-shaped limiting block; 27. Connecting block; 28. Support block; 29. ​​Second automatic rotating platform; 210. First dust-adhesive roller; 3. Second dust removal device; 31. Second high-precision electric push rod; 32. L-shaped support plate; 33. Second drive assembly; 331. Second concave support plate; 332. Bidirectional ball screw; 333. Brake motor; 334. Round rod; 335. Ball nut; 336. Limiting ring; 34. Support connecting plate; 35. Second dust-adhesive roller; 36. Second flat brake motor. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-14 This invention provides a technical solution for an automatic dust removal device for lithium battery casings: It includes a conveying structure 1, a first dust removal device 2, and a second dust removal device 3. The conveying structure 1 can convey soft-shell lithium batteries and perform preliminary dust removal by blowing air onto them. The conveying structure 1 also provides support for the first dust removal device 2 and the second dust removal device 3. The first dust removal device 2 is located near the bottom top surface of the front end of the conveying structure 1 and can remove dust from all four sides of the soft-shell lithium battery casing. The second dust removal device 3 is located at the top top surface of the rear end of the conveying structure 1. The second dust removal device 3 works in conjunction with the first dust removal device 2 to remove dust from the soft-shell lithium battery casing without any clamping dead angles. It is applicable to dust removal of soft-shell lithium batteries of different sizes and has a certain degree of versatility. The cooperation between the first dust removal device 2 and the second dust removal device 3 can improve the quality and accuracy of dust removal from the soft-shell lithium battery casing.

[0019] As a preferred option, further, such as Figure 2 and Figure 3 As shown, the conveying structure 1 includes: an L-shaped support base plate 11, an automatic slide table 12, a first automatic rotating platform 13, and an automatic dust removal spraying mechanism 14. The L-shaped support base plate 11 is used to support the top surface connecting component and can provide stable support for the top surface connecting component. The automatic slide table 12 is disposed at the longitudinal center of the front end of the top surface of the L-shaped support base plate 11 and can drive the soft-shell lithium battery to be conveyed. The first automatic rotating platform 13 is disposed on the moving end of the automatic slide table 12 and can drive the soft-shell lithium battery to rotate, thereby enabling the first dust removal device 2 to clean the four sides of the soft-shell. The automatic dust removal spraying mechanism 14 is disposed on the top surface of the L-shaped support base plate 11 near the front end and can perform preliminary dust removal on the soft-shell of the lithium battery. The top of the automatic dust removal spraying mechanism 14 is fitted around the top of the automatic slide table 12 near the center and at a certain distance.

[0020] As a preferred option, further, such as Figure 2 and Figure 4As shown, the conveying structure 1 also includes: a quadruped 15, a support plate 16, a first concave support plate 17, small electric push rods 18, and scrapers 19. The quadruped 15 is located at the rear end of the top surface of the L-shaped carrier base plate 11 and is used to support the top surface connecting component, providing an installation point and stable operation support for the top surface connecting component. The support plate 16 is located at the right end of the top surface of the L-shaped carrier base plate 11 and provides an installation point for the second dust removal device 3. The first concave support plate 17 is located at the left end of the top surface of the support plate 16. There are two small electric push rods 18, which are symmetrically arranged at the upper and lower ends of the inner wall of the first concave support plate 17. There are two scrapers 19, which are respectively arranged at the pushing ends of the two small electric push rods 18. The combination of the two small electric push rods 18 and the two scrapers 19 can clean the dust that adheres to the outer wall of the two second dust-adhesive rollers 35.

[0021] As a preferred option, further, such as Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first dust removal device 2 includes: a first high-precision electric push rod 21, a rectangular block 22, a chamber 23, an L-shaped moving groove 24, a rectangular moving groove 25, and a first driving assembly 26. The first high-precision electric push rod 21 is disposed on the front end of the top face of the L-shaped support base plate 11 near the center. The first high-precision electric push rod 21 has a certain weight-bearing capacity and can drive the rectangular block 22 to move up and down in a limited position. The rectangular block 22 is disposed on the pushing end of the first high-precision electric push rod 21. A chamber 23 is formed inside the rectangular block 22, which provides installation and operating space for the first driving assembly 26. An L-shaped moving groove 24 is formed at one bottom end on both sides of the outer wall of the rectangular block 22, and the two L-shaped moving grooves 24 are staggered and respectively penetrate into the chamber 23. Inside, rectangular moving grooves 25 are provided at the bottom of both sides of the outer wall of the rectangular block 22, and the two rectangular moving grooves 25 are staggered and extend into the chamber 23. The combination of the two L-shaped moving grooves 24 and the two rectangular moving grooves 25 allows the two first dust-adhesive rollers 210 to be closer to each other, so as to be suitable for four-sided dust removal of soft-shell lithium batteries of any size. The first driving component 26 is located at the center of the bottom surface of the inner wall of the chamber 23. The two output ends of the first driving component 26 are respectively embedded in the bottom end of the two L-shaped moving grooves 24, and the two output ends of the first driving component 26 extend outward of the two L-shaped moving grooves 24. The two output ends of the first driving component 26 can be limited to move along the bottom inner wall of the L-shaped moving groove 24.

[0022] As a preferred option, further, such as Figure 6 and Figure 9As shown, the first dust removal device 2 further includes: a connecting block 27, a support block 28, a second automatic rotating platform 29, and a first dust-adhesive roller 210. Two connecting blocks 27 are respectively disposed on the two output ends of the first drive assembly 26. The two connecting blocks 27 are used for transmission between the two support blocks 28 and the two racks 263. The two connecting blocks 27 are respectively matched with two L-shaped moving grooves 24 and can respectively move along the inner wall of the two L-shaped moving grooves 24. Two support blocks 28 are respectively disposed on the... The top surface of the two connecting blocks 27 and the function of the support block 28 are to make the two second automatic rotating platforms 29 symmetrical to each other; there are two second automatic rotating platforms 29, which are symmetrically arranged at one end of the top surface of the two support blocks 28 respectively. The two second automatic rotating platforms 29 can drive the two first dust-adhesive rollers 210 to rotate in a limited position; there are two first dust-adhesive rollers 210, which are symmetrically arranged on the rotating ends of the two second automatic rotating platforms 29 respectively. The two first dust-adhesive rollers 210 are used for dust removal and cleaning of the four sides of the outer wall of the lithium battery soft shell.

[0023] As a preferred option, further, such as Figure 6 , Figure 7 , Figure 8As shown, the first drive assembly 26 includes: a gear 261, a first flat brake motor 262, a rack 263, and an L-shaped limiting block 264. The gear 261 is disposed at the center of the bottom surface of the inner wall of the chamber 23 via a first bearing; the first flat brake motor 262 is disposed at the center of the top surface of the inner wall of the chamber 23, and the output end of the first flat brake motor 262 is connected and fixed to the center of the top surface of the gear 261. The first flat brake motor 262 has a certain self-locking capability and can prevent its output end from loosening or shifting due to external force when it is stationary; there are two racks 263, which are... The racks 263 are positioned at both ends of the outer diameter of the gear 261, and both racks 263 mesh with the gear 261. The racks 263 are respectively embedded in the bottom ends of the two L-shaped moving slots 24, and each rack 263 can move along the inner wall of the bottom end of the two L-shaped moving slots 24. One side of the outer wall of each rack 263 contacts the bottom ends of the front and rear sides of the inner wall of the chamber 23, respectively. One end of each rack 263 can move along the inner wall of the two rectangular moving slots 25. Two L-shaped limiting blocks 264 are respectively fitted onto the two racks 263. Near the center of the outer wall, the two L-shaped limiting blocks 264 not only limit the two racks 263, but also provide certain limiting and support for the racks 263. The two ends of the two L-shaped limiting blocks 264 are fixedly connected to the bottom ends of the front and rear sides of the inner wall of the chamber 23 and the two ends of the bottom surface of the inner wall, respectively. The two racks 263 can move along the inner walls of the two L-shaped limiting blocks 264, and the top surfaces of the other ends of the two L-shaped limiting blocks 264 are fixedly connected to the bottom surfaces of the two connecting blocks 27, respectively. The rotation of the first flat brake motor 262 can drive the gear 2... The first drive assembly 26 rotates and drives the two racks 263 to move within the two L-shaped limiting blocks 264 and the two L-shaped moving grooves 24 respectively. Thus, the two racks 263 drive the connecting block 27, the support block 28, the second automatic rotating platform 29 and the first dust-adhesive roller 210 to move in a limited position and expand or contract with each other. The first drive assembly 26 uses the gear 261 to drive the double racks 263 to move synchronously and staggered. With the multiple limiting support of the L-shaped limiting blocks 264 and the self-locking function of the motor, the first dust-adhesive rollers 210 on both sides can be stably, accurately and synchronously expanded and contracted. The movement is reliable and there is no loosening or deviation.

[0024] As a preferred option, further, such as Figure 10 , Figure 11 and Figure 12 As shown, the second dust removal device 3 includes: a second high-precision electric push rod 31, an L-shaped support plate 32, a second drive assembly 33, a support connecting plate 34, a second dust-adhesive roller 35, and a second flat brake motor 36. The second high-precision electric push rod 31 is located on the top left side of the outer wall of the support plate 16. The second high-precision electric push rod 31 has a certain load-bearing capacity. The L-shaped support plate 32 is disposed at the pushing end of the second high-precision electric push rod 31, and the second high-precision electric push rod 31 can drive the L-shaped support plate 32 to move left and right to a limited position. The second drive assembly 33 is located at the left end of the L-shaped support plate 32; There are two support connection plates 34, which are symmetrically arranged on the two output ends of the second drive assembly 33. The two support connection plates 34 are used to provide mounting points and stable support for the two second dust sticking rollers 35 and the two second flat brake motors 36, respectively. There are two second dust-adhesive rollers 35, which are symmetrically arranged on the left side of the outer wall of the two supporting connecting plates 34 through two second bearings. The two second dust-adhesive rollers 35 are used to remove dust and clean the top and bottom surfaces of the soft shell of the lithium battery. There are two second flat brake motors 36, which are symmetrically arranged on the right side of the outer wall of the two supporting connecting plates 34. The output ends of the two second flat brake motors 36 are respectively connected and fixed to the center of the right end of the two second dust sticking rollers 35. The second flat brake motors 36 have a certain self-locking ability and can ensure that their output ends will not loosen or shift due to external force when they are stationary.

[0025] As a preferred option, further, such as Figure 11 , Figure 13 and Figure 14 As shown, the second drive assembly 33 includes: a second concave support plate 331, a bidirectional ball screw 332, a brake motor 333, a round rod 334, a ball nut 335, and a limiting ring 336. The second concave support plate 331 is disposed at the left end of the L-shaped support plate 32, and the second concave support plate 331 is an important support for the second drive assembly 33; The bidirectional ball screw 332 is located between two ends of the second concave support plate 331 via two third bearings. The two ends of the outer wall of the bidirectional ball screw 332 have threads in opposite directions, so that the bidirectional ball screw 332 rotates to drive the two ball nuts 335 to move closer or further apart. The brake motor 333 is located at one end of the top surface of the second concave support plate 331. The output end of the brake motor 333 is connected and fixed to the center of the top end of the bidirectional ball screw 332. The brake motor 333 has a certain self-locking capability and can prevent its output end from loosening or shifting due to external force when it is stationary. The round rod 334 is disposed between the other ends inside the second concave support plate 331. The cooperation between the round rod 334 and the two limiting rings 336 can limit the two ball nuts 335 respectively. There are two ball nuts 335, which are symmetrically sleeved on the outer walls of both ends of the bidirectional ball screw 332. The two ball nuts 335 mesh with each other at both ends of the outer wall of the bidirectional ball screw 332. The two ball nuts 335 can move along the outer walls of both ends of the bidirectional ball screw 332. One end of the outer diameter of the two ball nuts 335 is fixedly connected to the center of the rear side of the outer wall of the two support connecting plates 34. Two limiting rings 336 are symmetrically arranged at the other end of the outer diameter of the two ball nuts 335. The two limiting rings 336 are respectively sleeved on both ends of the outer wall of the round rod 334, and the two limiting rings 336 can move along the outer wall of the round rod 334 for limiting. The brake motor 333 can drive the bidirectional ball screw 332 to rotate, so that the bidirectional ball screw 332 drives the two ball nuts 335 to move synchronously through the cooperation of the two limiting rings 336 and the brake motor 333, thereby driving the two support connecting plates 34, the two second dust sticking rollers 35 and the two second flat brake motors 36 to move synchronously. This second drive assembly 33 adopts the bidirectional ball screw 332 in combination with the round rod guide and the brake motor 333 for self-locking, which can realize the synchronous, stable and high-precision symmetrical contraction and expansion of the two second dust sticking rollers 35. The positioning is reliable and without deviation, and it is suitable for dust removal of high-precision lithium battery soft shell, thereby improving the dust removal quality and having a certain degree of versatility.

[0026] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows: The lithium battery with a soft outer shell is placed on the top surface of the first automatic rotating platform 13 by a robotic arm, and the top surface of the first automatic rotating platform 13 can form a high-friction contact surface with the bottom surface of the soft outer shell of the lithium battery, thereby completing the fixation of the soft outer shell lithium battery. The slide units inside the automatic slide table 12 can be modularly expanded at equal intervals along the guide rail direction. Multiple slide units can be flexibly added according to actual work needs to adapt to the synchronous operation of multi-station soft-shell lithium batteries. The automatic slide table 12 drives the first automatic rotating platform 13 to move the soft-shell lithium battery. During the movement, the automatic dust removal spray mechanism 14 completes the initial dust removal and cleaning of the soft shell of the lithium battery. The automatic slide table 12 then drives the soft-shell lithium battery to move between the two first dust-adhesive rollers 210. The first flat brake motor 262 drives the two racks 263 to respectively drive the two first dust-adhesive rollers 210 to contact the two sides of the soft-shell lithium battery. At the same time, the automatic slide table 12 drives the soft-shell lithium battery to move, which cooperates with the two second automatic rotating platforms 29 to drive the rotation of the two first dust-adhesive rollers 210, and cleans the dust on both sides of the soft-shell lithium battery. Furthermore, the other two sides of the lithium battery soft shell are adjusted by the rotation of the first automatic rotating platform 13, and then the two first dust-adhesive rollers 210 are adjusted by the first flat brake motor 262. Similarly, the other two sides of the lithium battery soft shell can be cleaned, thereby completing the dust removal and cleaning of the four sides of the lithium battery soft shell. When the outer walls of the two first dust-adhesive rollers 210 are covered with dust, they are reset downward by pushing the end of the first high-precision electric push rod 21, and the clean outer walls of the two first dust-adhesive rollers 210 replace the original dust-covered outer walls. When the outer walls of the two first dust-adhesive rollers 210 are completely covered with dust, they can be scraped off by the robotic arm. The reset can be completed quickly and the rollers can continue to work. The soft-shell lithium battery with dust removal on all four sides is then transported between the two second dust-adhesive rollers 35 by the first automatic rotating platform 13. The two support connecting plates 34 are driven by the brake motor 333 to cause the two second dust-adhesive rollers 35 to contract or expand and contact the remaining upper and lower surfaces of the soft shell of the lithium battery. The two second flat brake motors 36 drive the two second dust-adhesive rollers 35 to remove dust from the remaining upper and lower surfaces of the lithium battery. At the same time as the dust removal is completed, the soft-shell lithium battery with dust removal is output outward. When the left end of the outer wall of the two second dust-adhesive rollers 35 is covered with dust, the two second dust-adhesive rollers 35 are driven to move to the left by the second high-precision electric push rod 31, so that the outer wall that is not covered with dust replaces the original position of the outer wall covered with dust. The dust-covered end of the two second dust-adhesive rollers 35 is moved between the two scrapers 19, and the two scrapers 19 are driven by the two small electric push rods 18 to contact the outer wall of the dust-covered end of the two second dust-adhesive rollers 35. When the two second dust-adhesive rollers 35 rotate to remove dust again, the dust-covered end of the outer wall is driven to cooperate with the two scrapers 19 to remove the dust. Thus, the present invention can continuously remove dust and remove dust from the soft shell of the lithium battery without any dead corners, thereby improving the dust removal quality and accuracy of the soft shell of the lithium battery.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic dust removal device for the casing of lithium batteries, characterized in that, include: The conveying structure (1) is capable of conveying soft-shell lithium batteries; The first dust removal device (2) is located on the top surface of the conveying structure (1) near the front bottom. The first dust removal device (2) can remove dust from the four sides of the soft shell of the lithium battery. The second dust removal device (3) is located on the top surface of the rear end of the conveying structure (1). The second dust removal device (3) can cooperate with the first dust removal device (2) to clean the lithium battery soft shell without clamping dead angles and is suitable for dust removal of lithium battery soft shells of different sizes. The conveying structure (1) includes: L-shaped support base plate (11) is used to support the top surface connecting component; An automatic slide (12) is disposed at the longitudinal center of the front end of the top face of the L-shaped support substrate (11); The first automatic rotating platform (13) is disposed on the moving end of the automatic slide (12); An automatic dust removal spraying mechanism (14) is disposed on the top surface of the L-shaped support substrate (11) near the front end, and the top of the automatic dust removal spraying mechanism (14) is wrapped around the top of the automatic slide table (12) near the center and at a certain distance. A four-legged bracket (15) is disposed at the rear end of the top surface of the L-shaped support base plate (11); A support plate (16) is disposed on the right end of the top surface of the L-shaped support substrate (11); A first concave support plate (17) is disposed on the left end of the top surface of the support plate (16); Two small electric push rods (18) are symmetrically arranged at the upper and lower ends of the inner wall of the first concave support plate (17); Two scrapers (19) are respectively located at the pushing ends of the two small electric push rods (18); The first dust removal device (2) includes: The first high-precision electric push rod (21) is disposed on the top front end of the L-shaped support base plate (11) near the center; A rectangular block (22) is set at the pushing end of the first high-precision electric push rod (21). A cavity (23) is opened inside the rectangular block (22). An L-shaped moving groove (24) is opened at one end of the bottom of both sides of the outer wall of the rectangular block (22). The two L-shaped moving grooves (24) are staggered and respectively penetrate into the cavity (23). A rectangular moving groove (25) is opened at the other end of the bottom of both sides of the outer wall of the rectangular block (22). The two rectangular moving grooves (25) are staggered and respectively penetrate into the cavity (23). The first drive assembly (26) is disposed at the center of the bottom surface of the inner wall of the chamber (23). The two output ends of the first drive assembly (26) are respectively embedded in the bottom ends of the two L-shaped moving slots (24), and the two output ends of the first drive assembly (26) extend a portion outward from the two L-shaped moving slots (24). The two output ends of the first drive assembly (26) can respectively move along the bottom inner wall of the L-shaped moving slots (24).

2. The automatic dust removal device for lithium battery casing processing according to claim 1, characterized in that, The first dust removal device (2) further includes: There are two connecting blocks (27), which are respectively set on the two output ends of the first drive component (26). The two connecting blocks (27) are respectively matched with two L-shaped moving slots (24) and can be limited to move along the inner wall of the two L-shaped moving slots (24). There are two support blocks (28), which are respectively disposed on the top surface of the two connecting blocks (27); There are two second automatic rotating platforms (29), which are symmetrically arranged at one end of the top surface of the two support blocks (28); There are two first dust-adhesive rollers (210), which are symmetrically arranged on the rotating ends of the two second automatic rotating platforms (29).

3. The automatic dust removal device for the casing of a lithium battery as described in claim 2, characterized in that, The first driving component (26) includes: The gear (261) is disposed at the center of the bottom surface of the inner wall of the chamber (23) via a first bearing; The first flat brake motor (262) is located at the center of the top surface of the inner wall of the chamber (23), and the output end of the first flat brake motor (262) is connected and fixed to the center of the top surface of the gear (261); Two racks (263) are staggered at both ends of the outer diameter of the gear (261). The two racks (263) are embedded in the bottom ends of the two L-shaped moving grooves (24). The two racks (263) can move along the inner wall of the bottom end of the two L-shaped moving grooves (24). One side of the outer wall of the two racks (263) is in contact with the bottom ends of the front and rear sides of the inner wall of the chamber (23). One end of the two racks (263) can move along the inner wall of the two rectangular moving grooves (25). Two L-shaped limiting blocks (264) are respectively fitted onto the outer walls of the two racks (263) near the center. The two ends of the two L-shaped limiting blocks (264) are respectively fixedly connected to the bottom ends of the front and rear sides of the inner wall of the chamber (23) and the bottom ends of the inner wall. The two racks (263) can be limited to move along the inner walls of the two L-shaped limiting blocks (264). The top surfaces of the other ends of the two L-shaped limiting blocks (264) are respectively connected and fixed to the bottom surfaces of the two connecting blocks (27).

4. The automatic dust removal device for lithium battery casing processing according to claim 3, characterized in that, The rotation of the first flat brake motor (262) can drive the gear (261) to rotate and drive the two racks (263) to move in the two L-shaped limit blocks (264) and the two L-shaped moving grooves (24) respectively. Thus, the two racks (263) drive the connecting block (27), the support block (28), the second automatic rotating platform (29) and the first dust roller (210) to move in the limit and expand or contract with each other.

5. The automatic dust removal device for lithium battery casing processing according to claim 4, characterized in that, The second dust removal device (3) includes: The second high-precision electric push rod (31) is located at the top left side of the outer wall of the support plate (16); An L-shaped support plate (32) is disposed at the pushing end of the second high-precision electric push rod (31); The second drive assembly (33) is disposed at the left end of the L-shaped support plate (32); There are two support connection plates (34), which are symmetrically arranged on the two output ends of the second drive component (33); There are two second dust-adhesive rollers (35), which are symmetrically arranged on the left side of the outer wall of the two supporting connecting plates (34) via two second bearings; There are two second flat brake motors (36), which are symmetrically arranged on the right side of the outer wall of the two support connecting plates (34). The output ends of the two second flat brake motors (36) are respectively connected and fixed to the center of the right end of the two second dust sticking rollers (35).

6. An automatic dust removal device for the casing of a lithium battery as described in claim 5, characterized in that, The second driving component (33) includes: The second concave support plate (331) is disposed at the left end of the L-shaped support plate (32); A bidirectional ball screw (332) is disposed between one end of the second concave support plate (331) via two third bearings; A brake motor (333) is disposed at one end of the top surface of the second concave support plate (331), and the output end of the brake motor (333) is connected and fixed to the top center of the bidirectional ball screw (332). A round rod (334) is disposed between the other ends of the second concave support plate (331); There are two ball nuts (335), which are symmetrically sleeved on the outer walls of both ends of the bidirectional ball screw (332). The two ball nuts (335) are respectively engaged with the two ends of the outer wall of the bidirectional ball screw (332). The two ball nuts (335) can be limited to move along the outer walls of both ends of the bidirectional ball screw (332). One end of the outer diameter of the two ball nuts (335) is fixedly connected to the center of the rear side of the outer wall of the two support connecting plates (34). There are two limiting rings (336), which are symmetrically arranged at the other end of the outer diameter of the two ball nuts (335). The two limiting rings (336) are respectively sleeved on both ends of the outer wall of the round rod (334), and the two limiting rings (336) can move along the outer wall of the round rod (334) for a limited movement.

7. An automatic dust removal device for the casing of a lithium battery as described in claim 6, characterized in that, The brake motor (333) can drive the bidirectional ball screw (332) to rotate, so that the bidirectional ball screw (332) drives the two ball nuts (335) to move synchronously through the cooperation of the two limit rings (336) and the brake motor (333), thereby driving the two support connecting plates (34), the two second dust sticking rollers (35) and the two second flat brake motors (36) to move synchronously.

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