A lithium-ion coating sampling fixture

Abstract

This invention relates to the field of lithium-ion battery production equipment technology, and discloses a lithium-ion coating sampling fixture that solves the problems of low efficiency and inconvenience in existing manual sampling operations. The fixture includes a supporting base plate, a supporting frame at one end of the top of the supporting base plate, a driving mechanism and a servo motor at the top of one end of the supporting frame, a conveyor motor at the bottom of the supporting frame near the driving mechanism, a combined sampling mechanism at the top inside the supporting frame, and a receiving conveyor belt connected to the conveyor motor at the bottom inside the supporting frame. A feeding guide assembly is located at the top of one side of the supporting frame, and a discharging guide assembly is located at the top of the other side of the supporting frame. The lithium-ion coating belt is sequentially inserted through the feeding guide assembly, the combined sampling mechanism, and the discharging guide assembly. This sampling fixture enables continuous and rapid sampling, improving the convenience and efficiency of sampling.

Description

Technical Field

[0001] This invention belongs to the technical field of lithium-ion battery production equipment, specifically a lithium-ion coating sampling fixture. Background Technology

[0002] In the production process of lithium-ion batteries, there is a coating process. The quality, precision, and stability of the coating are the foundation for ensuring the quality and reliability of lithium-ion batteries. The quality of the coated electrode directly affects the battery performance. Therefore, during the coating process, it is necessary to sample and inspect the electrode, especially during material batch changes. Multiple sampling and inspections of the coated electrode are required, and the coating parameters are adjusted based on the results of the sampling and inspection to ensure that the areal density of the coated electrode meets the design requirements.

[0003] Currently, the commonly used inspection method is manual sampling, specifically random sampling during the coating process of a roll of electrode sheets. This operation requires pausing the machine, cutting a 50cm-70cm length of the coated electrode sheet, connecting the broken electrode sheet with tape and marking it to allow the coating process to continue. The operator then cuts the corresponding electrode sheet to be tested from the sampled electrode sheet. This manual sampling method is not only labor-intensive and inefficient, but also prone to problems. Insufficient rotation or force of the sampling tool can result in the electrode sheet not being cut properly, leading to waste. Furthermore, improper operation or dull blades can deform the sampled electrode sheet or cause uneven cut edges, resulting in inaccurate sampling area. Moreover, sampling typically requires simultaneous sampling from multiple locations within a region to determine the overall coating uniformity, which is difficult to achieve quickly manually. Therefore, this application proposes a lithium-ion coating sampling fixture. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a lithium-ion coating sampling fixture, which effectively solves the problems of low efficiency and inconvenience of sampling by manual sampling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lithium-ion coating sampling fixture, comprising a supporting base plate, a supporting frame fixedly mounted at one end of the top of the supporting base plate, a plurality of reinforcing inclined beams mounted between the supporting frame and the supporting base plate, a driving mechanism and a servo motor fixedly mounted at the top of one end of the supporting frame, a conveyor motor fixedly mounted at the bottom of the supporting frame near the driving mechanism, a combined sampling mechanism connected to the driving mechanism and the servo motor mounted at the top inside the supporting frame, a receiving conveyor belt connected to the conveyor motor mounted at the bottom inside the supporting frame, a feeding guide assembly mounted at the top of one side of the supporting frame, and a discharging guide assembly mounted at the top of the other side of the supporting frame, wherein a lithium-ion coating belt is sequentially inserted through the feeding guide assembly, the combined sampling mechanism, and the discharging guide assembly.

[0006] Preferably, both the feeding guide assembly and the discharging guide assembly are composed of a V-shaped support frame and a guide roller assembly. The V-shaped support frame is fixedly connected to the side of the support frame, and the guide roller assembly is rotatably connected to the inside of the V-shaped support frame. The receiving conveyor belt is composed of a first support roller, a second support roller, a conveyor belt body, and an electrostatic adsorption surface layer. The first support roller is fixedly connected to the output shaft of the conveyor motor, the conveyor belt body is connected between the first support roller and the second support roller, and the electrostatic adsorption surface layer is fixedly connected to the outer surface of the conveyor belt body.

[0007] Preferably, the drive mechanism consists of a drive box, a second servo motor, a drive gear, and a driven gear. The drive box is fixedly connected to the top of one end of the support frame, the second servo motor is fixedly connected to the top of one side of the drive box, and the drive gear and the driven gear are rotatably connected inside the drive box and cooperate with the combined sampling mechanism. The drive gear is fixedly connected to the output shaft of the second servo motor.

[0008] Preferably, the combined sampling mechanism consists of an upper stamping roller, a lower stamping adsorption roller, and a combined receiving roller. The upper stamping roller, the lower stamping adsorption roller, and the combined receiving roller are all rotatably connected inside the support frame. One end of the upper stamping roller is fixedly connected to the drive gear, one end of the lower stamping adsorption roller is fixedly connected to the driven gear, and one end of the combined receiving roller is fixedly connected to the output shaft of a servo motor. The lower stamping adsorption roller is located between the upper stamping roller and the combined receiving roller.

[0009] Preferably, the upper stamping roller is composed of an upper rotating shaft, an upper roller body and several stamping dies. The upper rotating shaft is inserted into the interior of the upper roller body, and the stamping dies are fixedly connected to the side of the upper roller body. A planar groove is provided on the side of the upper roller body away from the stamping dies, and several movable limiting rollers are rotatably arranged inside the planar groove.

[0010] Preferably, the stamping adsorption lower roller consists of a lower rotating shaft, a lower roller body, and a pneumatic suction and discharge assembly. The lower rotating shaft is inserted into the interior of the lower roller body. A plurality of stamping die grooves matching the dry stamping die head are opened on one side of the lower roller body. The pneumatic suction and discharge assembly is connected to and communicates with the side of the lower roller body near the stamping die groove. A planar groove is provided on the side of the lower roller body away from the stamping die groove. A movable limiting roller is rotatably arranged inside the planar groove.

[0011] Preferably, the combined receiving roller consists of a central support assembly, a first receiving assembly, and a second receiving assembly, with the first receiving assembly and the second receiving assembly respectively connected to both sides of the central support assembly.

[0012] Preferably, the central support assembly consists of several end connecting shafts, a rectangular support body, a servo motor, a gear, and several limiting guide posts. The end connecting shafts are fixedly connected to the center positions of both ends of the rectangular support body, the servo motor is fixedly connected to the middle position inside the rectangular support body, the gear is fixedly connected to the output shaft of the servo motor, and the limiting guide posts are fixedly connected to both sides of the rectangular support body. Several strip-shaped through slots are opened inside the rectangular support body.

[0013] Preferably, both the first receiving assembly and the second receiving assembly are composed of an arc-shaped support body, a rack, a second pneumatic suction and discharge assembly, and a suction die head. The rack is fixedly connected to one side of the arc-shaped support body and meshes with a gear. The suction die head is fixedly connected to the side of the arc-shaped support body away from the rack and matches the stamping die groove. The second pneumatic suction and discharge assembly is connected to the inside of the arc-shaped support body near the suction die head and communicates with it. The side of the arc-shaped support body near the rack is provided with several limiting grooves that match the limiting guide posts.

[0014] Preferably, both the first pneumatic suction and discharge assembly and the second pneumatic suction and discharge assembly consist of a suction and discharge pump, a suction and discharge pipe, a pressure equalization chamber, and several suction and discharge nozzles. The suction and discharge pump is connected to the interior of the lower roller of the pressure adsorption, the first receiving assembly, and the second receiving assembly, respectively. The suction and discharge pipe is fixedly connected to the suction and discharge pump. The pressure equalization chamber is located on the side inside the lower roller of the pressure adsorption, the first receiving assembly, and the second receiving assembly and is connected to the suction and discharge pipe. The suction and discharge nozzles are located on the side of the lower roller of the pressure adsorption, the first receiving assembly, and the second receiving assembly and are connected to the pressure equalization chamber.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) In operation, by setting up a feeding guide assembly and a discharging guide assembly consisting of a V-shaped support frame and a guide roller group, the lithium-ion coating belt can be limited. By setting up a receiving conveyor belt consisting of a first support roller, a second support roller, a conveyor belt body and an electrostatic adsorption surface layer, the sample can be stably received. By setting up a drive mechanism and a servo motor, the combined sampling mechanism can be driven.

[0017] (2) By setting up an upper stamping roller consisting of an upper rotating shaft, an upper roller body and several stamping dies, and a lower stamping adsorption roller consisting of a lower rotating shaft, a lower roller body and a pneumatic suction and discharge assembly, continuous and fast stamping sampling can be achieved. The coating mechanism does not need to be paused during sampling, so the coating efficiency will not be affected. At the same time, multi-position sampling can be achieved to facilitate the later inspection of the coating uniformity. After sampling, the sample can be suctioned and limited, and the sample can be transferred and discharged.

[0018] (3) By setting a central support assembly consisting of several end connecting shafts, rectangular support bodies, servo motor three, gears and several limiting guide columns, and a first receiving assembly and a second receiving assembly consisting of an arc support body, rack, pneumatic suction and discharge assembly two and suction mold head, it is possible to achieve rapid material receiving and independent movement, avoid affecting the upper stamping roller and the lower stamping adsorption roller, and at the same time, it can cooperate with the receiving conveyor belt to stably discharge the material and avoid the phenomenon of sample drift. By setting a pneumatic suction and discharge assembly one and a pneumatic suction and discharge assembly two consisting of a suction and exhaust pump, suction and exhaust pipe, pressure equalization inner cavity and several suction and exhaust nozzles, it is possible to achieve negative pressure suction and limit of the sample, and at the same time, it is convenient to quickly discharge the sample.

[0019] (4) The sampling process of the present invention does not require cutting the electrode sheet, thus saving the sampling steps of cutting the electrode sheet and sticking the ends of the two electrode sheets together with tape, saving time and improving production efficiency. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the lithium-ion coating sampling fixture structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the lithium-ion coating sampling fixture of the present invention;

[0024] Figure 3 This is a schematic diagram of the drive mechanism structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the combined sampling mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the upper stamping roller structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the stamping adsorption lower roller structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the combined receiving roller structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the central support component structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the first receiving component of the present invention;

[0031] Figure 10 This is a flowchart illustrating the working process of the combined sampling mechanism of the present invention.

[0032] In the diagram: 1. Support base plate; 2. Support frame; 3. Reinforcing inclined beam; 4. Drive mechanism; 5. Servo motor one; 6. Conveyor motor; 7. Combined sampling mechanism; 8. Receiving conveyor belt; 9. Feeding guide assembly; 10. Discharge guide assembly; 11. V-shaped support frame; 12. Guide roller group; 13. First support roller; 14. Second support roller; 15. Conveyor belt body; 16. Electrostatic adsorption surface layer; 17. Drive box; 18. Servo motor two; 19. Drive gear; 20. Driven gear; 21. Upper stamping roller; 22. Lower stamping adsorption roller; 23. Combined receiving roller; 24. Upper rotating shaft; 25. Upper roller body; 26. Stamping die head; 27. 1. Planar groove 1; 28. Movable limiting roller 1; 29. ​​Lower rotating shaft; 30. Lower roller body; 31. Pneumatic suction and discharge assembly 1; 32. Stamping die groove; 33. Planar groove 2; 34. Movable limiting roller 2; 35. Central support assembly; 36. First receiving assembly; 37. Second receiving assembly; 38. End connecting shaft; 39. Rectangular support body; 40. Servo motor 3; 41. Gear; 42. Limiting guide post; 43. Strip-shaped through groove; 44. Arc-shaped support body; 45. Rack; 46. Pneumatic suction and discharge assembly 2; 47. Suction die head; 48. Limiting slide groove; 49. Exhaust pump; 50. Exhaust pipe; 51. Pressure equalizing inner cavity; 52. Exhaust nozzle. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example 1, by Figure 1 , Figure 2 and 10 The present invention provides a lithium-ion coating sampling fixture comprising a supporting base plate 1, a supporting frame 2 fixedly mounted at one end of the top of the supporting base plate 1, a plurality of reinforcing inclined beams 3 between the supporting frame 2 and the supporting base plate 1, a driving mechanism 4 and a servo motor 5 fixedly mounted at the top of one end of the supporting frame 2, a conveying motor 6 fixedly mounted at the bottom of the supporting frame 2 near the driving mechanism 4, a combined sampling mechanism 7 connected to the driving mechanism 4 and the servo motor 5 at the top inside the supporting frame 2, a receiving conveyor belt 8 connected to the conveying motor 6 at the bottom inside the supporting frame 2, a feeding guide component 9 at the top of one side of the supporting frame 2, and a discharging guide component 10 at the top of the other side of the supporting frame 2, wherein the lithium-ion coating belt is sequentially inserted through the feeding guide component 9, the combined sampling mechanism 7 and the discharging guide component 10;

[0035] In use, the fixture is installed at the discharge end of the coating mechanism. The feeding guide component 9 and the discharge guide component 10 limit the lithium-ion coating belt. The drive mechanism 4 and the servo motor 5 drive the combined sampling mechanism 7 to work. The combined sampling mechanism 7 performs fixed-point sampling of the lithium-ion coating belt and facilitates sample unloading. The receiving conveyor belt 8 then stably receives the sample for the staff to test.

[0036] Example 2, based on Example 1, is... Figure 1 and Figure 2 As shown, both the feeding guide assembly 9 and the discharging guide assembly 10 are composed of a V-shaped support frame 11 and a guide roller assembly 12. The V-shaped support frame 11 is fixedly connected to the side of the support frame 2, and the guide roller assembly 12 is rotatably connected to the inside of the V-shaped support frame 11. The receiving conveyor belt 8 is composed of a first support roller 13, a second support roller 14, a conveyor belt body 15, and an electrostatic adsorption surface layer 16. The first support roller 13 is fixedly connected to the output shaft of the conveyor motor 6, the conveyor belt body 15 is connected between the first support roller 13 and the second support roller 14, and the electrostatic adsorption surface layer 16 is fixedly connected to the outer surface of the conveyor belt body 15.

[0037] The guide roller group 12 can support and limit the lithium-ion coating belt, preventing the lithium-ion coating belt from sliding and rubbing against the combined sampling mechanism 7, thereby avoiding wear on the lithium-ion coating belt. After sampling, the sample is received by the receiving conveyor belt 8 and the sample is moved to avoid the samples from stacking and affecting the judgment of the staff. The electrostatic adsorption surface layer 16 can electrostatically adsorb the sample. Since the sample may drift when pneumatically unloading, the electrostatic adsorption surface layer 16 can effectively improve the stability of the sample and make the sample arranged in an orderly manner.

[0038] Example 3, based on Example 1, is... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and 10 The drive mechanism 4 consists of a drive box 17, a servo motor 18, a drive gear 19, and a driven gear 20. The drive box 17 is fixedly connected to the top of one end of the support frame 2. The servo motor 18 is fixedly connected to the top of one side of the drive box 17. The drive gear 19 and the driven gear 20 are both rotatably connected inside the drive box 17 and cooperate with the combined sampling mechanism 7. The drive gear 19 is fixedly connected to the output shaft of the servo motor 18. The combined sampling mechanism 7 consists of an upper stamping roller 21, a lower stamping adsorption roller 22, and a combined receiving roller 23. The upper stamping roller 21, the lower stamping adsorption roller 22, and the combined receiving roller 23 are all rotatably connected inside the support frame 2. One end of the upper stamping roller 21 is fixedly connected to the drive gear 19. One end of the lower stamping adsorption roller 22 is fixedly connected to the driven gear 20. One end of the combined receiving roller 23 is fixedly connected to the output shaft of the servo motor 18. The lower stamping adsorption roller 22 is located at the top of the drive box 17. Between the upper pressing roller 21 and the combined receiving roller 23, the upper pressing roller 21 is composed of an upper rotating shaft 24, an upper roller body 25, and several pressing dies 26. The upper rotating shaft 24 is inserted into the interior of the upper roller body 25, and the pressing dies 26 are fixedly connected to the side of the upper roller body 25. A flat groove 27 is provided on the side of the upper roller body 25 away from the pressing dies 26. Several movable limiting rollers 28 are rotatably arranged inside the flat groove 27. The lower pressing and adsorption roller 22 is composed of a lower rotating shaft 29 and a lower roller. The lower roller body 30 is composed of a pneumatic suction and discharge assembly 31. The lower rotating shaft 29 is inserted and connected to the inside of the lower roller body 30. Several stamping die grooves 32 that match the dry stamping die head 26 are opened on one side of the lower roller body 30. The pneumatic suction and discharge assembly 31 is connected to and communicates with the side of the lower roller body 30 near the stamping die groove 32. A planar groove 33 is provided on the side of the lower roller body 30 away from the stamping die groove 32. A movable limiting roller 34 is rotatably arranged inside the planar groove 33.

[0039] Servo motor 18 drives drive gear 19 to rotate, which in turn drives driven gear 20 to rotate in opposite directions. Drive gear 19 and driven gear 20 respectively drive upper stamping roller 21 and lower stamping adsorption roller 22 to rotate, and the rotation speed of upper stamping roller 21 and lower stamping adsorption roller 22 is controlled to be the same as the moving speed of the lithium-ion coating belt. By setting planar groove 27 and planar groove 33, contact between upper stamping roller 21 and lower stamping adsorption roller 22 and the lithium-ion coating belt can be avoided when sampling is not required. To prevent contact with the lithium-ion coating belt and avoid affecting its normal conveying operation, the movable limiting rollers 28 and 34 provide auxiliary support, reducing friction between the lithium-ion coating belt and the upper stamping roller 21 and the lower stamping adsorption roller 22. The planar grooves 27 and 33 also buffer the start-up of the servo motor 18, allowing for acceleration time. This prevents contact between the upper stamping roller 21 and the lower stamping adsorption roller 22 and the lithium-ion coating belt before they reach their designated speed. Friction occurs, and when the stamping die head 26 coincides with the stamping die groove 32, rapid stamping and sampling of the lithium-ion coated belt is achieved. At this time, the pneumatic suction and discharge assembly 31 is activated, so that the sample is adsorbed inside the stamping die groove 32, preventing the sample from being thrown out by centrifugal force. When the stamping die groove 32 contacts the combined receiving roller 23, the pneumatic suction and discharge assembly 31 exhausts air, which can transfer the sample to the combined receiving roller 23. Then, the combined receiving roller 23 stably discharges the sample. Multiple vertically arranged rollers enable multi-position sampling. When multiple columns of sampling are required, the driving mechanism 4 drives the upper stamping roller 21 and the lower stamping adsorption roller 22 to move for another cycle, thereby achieving double-column sampling. This allows the staff to inspect the uniformity of the coating later. After sampling, the first plane groove 27 and the second plane groove 33 are positioned directly opposite the lithium-ion coating belt to prevent the upper stamping roller 21 and the lower stamping adsorption roller 22 from contacting the lithium-ion coating belt, thus pausing the operation of the upper stamping roller 21 and the lower stamping adsorption roller 22.

[0040] Example 4, based on Example 3, by Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the combined receiving roller 23 consists of a central support assembly 35, a first receiving assembly 36, and a second receiving assembly 37. The first receiving assembly 36 and the second receiving assembly 37 are respectively connected to both sides of the central support assembly 35. The central support assembly 35 consists of several end connecting shafts 38, a rectangular support body 39, a servo motor 40, a gear 41, and several limiting guide posts 42. The end connecting shafts 38 are fixedly connected to the center positions of both ends of the rectangular support body 39. The servo motor 40 is fixedly connected to the middle position inside the rectangular support body 39. The gear 41 is fixedly connected to the output shaft of the servo motor 40. The limiting guide posts 42 are fixedly connected to both sides of the rectangular support body 39. The rectangular support body 39 has several strip-shaped through slots 43 inside. The first receiving component 36 and the second receiving component 37 are both composed of an arc-shaped support body 44, a rack 45, a pneumatic suction and discharge component 46, and a suction die head 47. The rack 45 is fixedly connected to one side of the arc-shaped support body 44 and meshes with the gear 41. The suction die head 47 is fixedly connected to the side of the arc-shaped support body 44 away from the rack 45 and matches the stamping die groove 32. The pneumatic suction and discharge component 46 is connected to the side of the arc-shaped support body 44 near the suction die head 47 and communicates with it. The side of the arc-shaped support body 44 near the rack 45 has several limiting grooves 48 that match the limiting guide post 42.

[0041] The servo motor 5 drives the end connecting shaft 38 to rotate, which in turn drives the rectangular support 39 to rotate, thereby rotating the entire combined receiving roller 23. The combined receiving roller 23 rotates at the same speed as the upper stamping roller 21 and the lower stamping adsorption roller 22. When one of the suction heads 47 overlaps with the stamping die groove 32, the pneumatic suction and discharge assembly 46 draws air, creating a negative pressure to transfer the sample inside the stamping die groove 32 to the side of the suction head 47, which then moves with it, completing the sample transfer. If the upper stamping roller 21 and the lower stamping adsorption roller 22 perform double-row sampling, after the combined receiving roller 23 completes one receiving cycle, it is controlled to slow down. When the upper stamping roller 21 and the lower stamping adsorption roller 22 complete the second row of sample sampling, the other suction head 47 overlaps with the stamping die groove 32, and the sample is transferred... The first receiving component 36 and the second receiving component 37 complete two receiving operations. After receiving, the servo motor 3 40 is started, which drives the gear 41 to rotate. The gear 41 drives the rack 45 to move, and the rack 45 drives the arc-shaped support 44 to move to one side of the rectangular support 39, so that the arc-shaped support 44 and the rectangular support 39 are in contact. At this time, the diameter of the entire combined receiving roller 23 becomes smaller, thus separating from the stamping and adsorption lower roller 22. The limiting guide post 42 and the limiting slide 48 can achieve the limiting function, improving the stability of the connection between the arc-shaped support 44 and the rectangular support 39. Then, the unloading operation is carried out, so that the pneumatic suction and discharge component 2 46 slowly exhausts the air, so that the sample falls to the top of the receiving conveyor belt 8. Since the combined receiving roller 23 does not rotate during unloading, the sample drift is avoided.

[0042] Example 5, based on Example 4, by Figure 4 , Figure 7 and Figure 9 As shown, both the pneumatic suction and discharge assembly 31 and the pneumatic suction and discharge assembly 46 are composed of a suction and discharge pump 49, a suction and discharge pipe 50, a pressure equalization cavity 51, and several suction and discharge nozzles 52. The suction and discharge pump 49 is connected to the interior of the lower roller 22, the first receiving assembly 36, and the second receiving assembly 37, respectively. The suction and discharge pipe 50 is fixedly connected to the suction and discharge pump 49. The pressure equalization cavity 51 is located on the side inside the lower roller 22, the first receiving assembly 36, and the second receiving assembly 37 and is connected to the suction and discharge pipe 50. The suction and discharge nozzles 52 are located on the side of the lower roller 22, the first receiving assembly 36, and the second receiving assembly 37 and are connected to the pressure equalization cavity 51.

[0043] When the pneumatic suction and discharge assembly 31 and the pneumatic suction and discharge assembly 46 are suctioning material, the exhaust pump 49 is pumping air, which creates a negative pressure inside the exhaust pipe 50, the equalizing inner cavity 51, and the exhaust nozzle 52, thereby achieving the suction of the sample. When the pneumatic suction and discharge assembly 31 and the pneumatic suction and discharge assembly 46 are discharging material, the exhaust pump 49 is venting air, which creates a positive pressure inside the exhaust pipe 50, the equalizing inner cavity 51, and the exhaust nozzle 52, thereby achieving the discharge of the sample.

[0044] In operation, the lithium-ion coating belt can be limited by setting up a feeding guide assembly and a discharging guide assembly consisting of a V-shaped support frame and a guide roller group. A receiving conveyor belt consisting of a first support roller, a second support roller, a conveyor belt body, and an electrostatic adsorption surface layer can stably receive samples. A drive mechanism and a servo motor drive the combined sampling mechanism. A stamping upper roller consisting of an upper rotating shaft, an upper roller body, and several stamping dies, and a stamping adsorption lower roller consisting of a lower rotating shaft, a lower roller body, and a pneumatic suction and discharge assembly, enable continuous and rapid stamping sampling. Sampling does not require pausing the coating mechanism, thus not affecting coating efficiency. Simultaneously, multi-position sampling is possible to facilitate subsequent inspection of coating uniformity. Simultaneously, it can perform suction and limiting of samples after sampling, and can transfer and unload samples; by setting up a central support assembly consisting of several end connecting shafts, rectangular support bodies, servo motor three, gears and several limiting guide pillars, and a first receiving assembly and a second receiving assembly consisting of an arc-shaped support body, rack, pneumatic suction and discharge assembly two and suction die head, it can achieve rapid receiving, can achieve independent movement, avoid affecting the upper stamping roller and the lower stamping suction roller, and can also cooperate with the receiving conveyor belt for stable unloading, avoiding sample drift. By setting up pneumatic suction and discharge assembly one and pneumatic suction and discharge assembly two consisting of a suction and exhaust pump, suction and exhaust pipe, pressure equalization inner cavity and several suction and exhaust nozzles, it can achieve negative pressure suction and limiting of samples, and facilitate rapid unloading of samples.

Claims

1. A lithium-ion coating sampling fixture, comprising a supporting base plate (1), characterized in that: A support frame (2) is fixedly installed at one end of the top of the support base plate (1). Several reinforcing inclined beams (3) are installed between the support frame (2) and the support base plate (1). A drive mechanism (4) and a servo motor (5) are fixedly installed at the top of one end of the support frame (2). A conveyor motor (6) is fixedly installed at the bottom of the support frame (2) near the drive mechanism (4). A combined sampling mechanism (7) connected to the drive mechanism (4) and the servo motor (5) is installed at the top inside the support frame (2). A receiving conveyor belt (8) connected to the conveyor motor (6) is installed at the bottom inside the support frame (2). A feeding guide assembly (9) is installed at the top of one side of the support frame (2). A discharge guide assembly (10) is provided at the top. The lithium-ion coating belt is sequentially inserted through the feed guide assembly (9), the combined sampling mechanism (7), and the discharge guide assembly (10). The feed guide assembly (9) and the discharge guide assembly (10) are both composed of a V-shaped support frame (11) and a guide roller group (12). The V-shaped support frame (11) is fixedly connected to the side of the support frame (2), and the guide roller group (12) is rotatably connected to the inside of the V-shaped support frame (11). The receiving conveyor belt (8) is composed of a first support roller (13), a second support roller (14), a conveyor belt body (15), and an electrostatic adsorption surface layer (16). The first support roller (13) is fixedly connected to the output shaft of the conveyor motor (6), and the conveyor belt body (15) is connected to the first support roller. (13) Between the second support roller (14), the electrostatic adsorption surface layer (16) is fixedly connected to the outer surface of the conveyor belt body (15). The drive mechanism (4) consists of a drive box (17), a servo motor (18), a drive gear (19), and a driven gear (20). The drive box (17) is fixedly connected to the top of one end of the support frame (2). The servo motor (18) is fixedly connected to the top of one side of the drive box (17). The drive gear (19) and the driven gear (20) are rotatably connected inside the drive box (17) and cooperate with the combined sampling mechanism (7). The drive gear (19) is fixedly connected to the output shaft of the servo motor (18). The combined sampling mechanism (7) consists of a stamping upper roller (21), a stamping suction roller (22), a stamping suction roller (23), a stamping suction roller (24), a stamping suction roller (25), a stamping suction roller (26), a stamping suction roller (27), a stamping suction roller (28), a stamping suction roller (29), a stamping suction roller (20 ... The upper stamping roller (21), the lower stamping adsorption roller (22), and the combined receiving roller (23) are all rotatably connected inside the support frame (2). One end of the upper stamping roller (21) is fixedly connected to the drive gear (19), one end of the lower stamping adsorption roller (22) is fixedly connected to the driven gear (20), and one end of the combined receiving roller (23) is fixedly connected to the output shaft of the servo motor (5). The lower stamping adsorption roller (22) is located between the upper stamping roller (21) and the combined receiving roller (23). The upper stamping roller (21) is composed of an upper rotating shaft (24), an upper roller body (25), and several stamping dies (26). The upper rotating shaft (24) is inserted into the interior of the upper roller body (25).The stamping die head (26) is fixedly connected to the side of the upper roller body (25). A planar groove (27) is provided on the side of the upper roller body (25) away from the stamping die head (26). Several movable limiting rollers (28) are rotatably arranged inside the planar groove (27). The stamping adsorption lower roller (22) consists of a lower rotating shaft (29), a lower roller body (30), and a pneumatic suction and discharge assembly (31). The lower rotating shaft (29) is inserted into the interior of the lower roller body (30). Several stamping die grooves (32) matching the stamping die head (26) are opened on one side of the lower roller body (30). The pneumatic suction and discharge assembly (31) is connected to and communicates with the side of the lower roller body (30) near the stamping die grooves (32). A planar groove (33) is provided on the side of the lower roller body (30) away from the stamping die grooves (32). Movable limiting rollers (34) are rotatably arranged inside the planar groove (33).

2. The lithium-ion coating sampling fixture according to claim 1, characterized in that: The combined receiving roller (23) consists of a central support component (35), a first receiving component (36) and a second receiving component (37), with the first receiving component (36) and the second receiving component (37) respectively connected to both sides of the central support component (35).

3. The lithium-ion coating sampling fixture according to claim 2, characterized in that: The central support assembly (35) consists of several end connecting shafts (38), a rectangular support body (39), a servo motor (40), a gear (41), and several limiting guide posts (42). The end connecting shafts (38) are fixedly connected to the center positions at both ends of the rectangular support body (39). The servo motor (40) is fixedly connected to the middle position inside the rectangular support body (39). The gear (41) is fixedly connected to the output shaft of the servo motor (40). The limiting guide posts (42) are fixedly connected to both sides of the rectangular support body (39). Several strip-shaped through slots (43) are opened inside the rectangular support body (39).

4. The lithium-ion coating sampling fixture according to claim 3, characterized in that: The first receiving component (36) and the second receiving component (37) are both composed of an arc-shaped support body (44), a rack (45), a pneumatic suction and discharge component two (46), and a suction die head (47). The rack (45) is fixedly connected to one side of the arc-shaped support body (44) and meshes with the gear (41). The suction die head (47) is fixedly connected to the side of the arc-shaped support body (44) away from the rack (45) and matches the stamping die groove (32). The pneumatic suction and discharge component two (46) is connected to the side of the arc-shaped support body (44) close to the suction die head (47) and communicates with it. The side of the arc-shaped support body (44) close to the rack (45) is provided with several limiting grooves (48) that match the limiting guide post (42).

5. The lithium-ion coating sampling fixture according to claim 4, characterized in that: The pneumatic suction and discharge assembly one (31) and the pneumatic suction and discharge assembly two (46) are both composed of a suction and discharge pump (49), a suction and discharge pipe (50), a pressure equalization chamber (51) and several suction and discharge nozzles (52). The suction and discharge pump (49) is connected to the inside of the lower roller of the stamping adsorption (22), the first receiving assembly (36) and the second receiving assembly (37), respectively. The suction and discharge pipe (50) is fixedly connected to the suction and discharge pump (49). The pressure equalization chamber (51) is located on the side inside the lower roller of the stamping adsorption (22), the first receiving assembly (36) and the second receiving assembly (37) and is connected to the suction and discharge pipe (50). The suction and discharge nozzles (52) are located on the side of the lower roller of the stamping adsorption (22), the first receiving assembly (36) and the second receiving assembly (37) and are connected to the pressure equalization chamber (51).

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