A rotary disc type multi-station cylindrical battery cell kneading and flattening device

Abstract

The present application relates to battery processing technical field, provide a kind of carousel multi-station cylindrical battery cell kneading and flattening equipment, comprising: carousel mechanism, battery cell feeding mechanism, kneading and flattening mechanism and battery cell discharging mechanism;Battery cell feeding mechanism, kneading and flattening mechanism and battery cell discharging mechanism are arranged around carousel mechanism;Battery cell feeding mechanism is used to place battery cell vertically on carousel mechanism;Carousel mechanism is used to carry battery cell rotation;Kneading and flattening mechanism is used to carry out kneading and flattening processing to battery cell on carousel mechanism;Battery cell discharging mechanism is used to carry out discharging processing to battery cell after kneading and flattening;Kneading and flattening mechanism includes at least one set of kneading and flattening unit, and kneading and flattening unit includes first rotary drive assembly, second rotary drive assembly and kneading and flattening head;First rotary drive assembly and second rotary drive assembly are oppositely arranged, and first rotary drive assembly and second rotary drive assembly are all equipped with kneading and flattening head.The present application occupies small space, can ensure the kneading and flattening efficiency of vertically arranged battery cell.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and in particular to a rotary multi-station cylindrical cell flattening device. Background Technology

[0002] The battery cell is the most important component of a battery. It undergoes a series of processes, including mechanical / ultrasonic leveling, encapsulation, casing, and current collector welding, before being assembled into a battery. Therefore, the performance of the battery cell directly impacts the overall battery performance, making the cell manufacturing process before assembly crucial.

[0003] For all-tab cylindrical batteries, flattening is a crucial step in the manufacturing process. If the cell is not flattened, the ends will be fluffy, and there will be a degree of concentricity deviation between the ends and the cell body. To facilitate subsequent welding of current collectors to the cell ends, flattening is necessary. This flattening creates a dense, flat surface on the end face, ensuring that the electrode layers are tightly bonded together to form a conductive current collector.

[0004] Currently, existing battery cell leveling equipment includes a battery cell feeding line and multiple leveling mechanisms. Since the leveling mechanism can only level horizontally arranged battery cells, the battery cell leveling equipment occupies a large space along the conveying direction of the battery cell feeding line. Furthermore, the arrangement structure of multiple leveling mechanisms based on a single battery cell feeding line limits the production cycle of the battery cell leveling equipment and seriously affects the leveling efficiency of the battery cells. Summary of the Invention

[0005] This invention provides a rotary multi-station cylindrical battery cell flattening device to solve the problems of existing battery cell flattening devices that occupy a large space and are difficult to flatten vertically arranged battery cells efficiently.

[0006] This invention provides a rotary multi-station cylindrical battery cell flattening device, comprising: a rotary mechanism, a battery cell feeding mechanism, a flattening mechanism, and a battery cell unloading mechanism;

[0007] The battery cell feeding mechanism, the flattening mechanism, and the battery cell unloading mechanism are arranged around the turntable mechanism;

[0008] The battery cell loading mechanism is used to vertically place the battery cell on the turntable mechanism; the turntable mechanism is used to support the rotation of the battery cell; the flattening mechanism is used to flatten the battery cell on the turntable mechanism; the battery cell unloading mechanism is used to unload the flattened battery cell.

[0009] The kneading mechanism includes at least one kneading unit, which includes a first rotary drive assembly, a second rotary drive assembly, and a kneading head. The first rotary drive assembly and the second rotary drive assembly are arranged opposite each other, and the kneading head is mounted on both the first rotary drive assembly and the second rotary drive assembly.

[0010] According to the present invention, a rotary multi-station cylindrical battery cell flattening device is provided, wherein the rotary mechanism includes a rotary drive assembly, a rotary disk and a battery cell clamp;

[0011] The turntable is mounted on the rotary drive assembly, and at least one set of the battery cell clamps is mounted on the turntable along the circumferential direction. The battery cell clamps are used to clamp and fix the battery cells.

[0012] The cell clamp can be moved to a position corresponding to any one of the cell feeding mechanism, the flattening mechanism, and the cell unloading mechanism under the drive of the turntable.

[0013] According to the present invention, a rotary multi-station cylindrical battery cell flattening device further includes: a battery cell clamping mechanism;

[0014] The battery cell clamping mechanism is provided in multiple sets, which are arranged around the circumference of the turntable mechanism. At least some of the battery cell clamping mechanisms are arranged opposite to the battery cell feeding mechanism and the battery cell unloading mechanism. The battery cell clamping mechanism and the battery cell clamp cooperate to control the clamping state of the battery cell by the battery cell clamp.

[0015] According to the present invention, a rotary multi-station cylindrical battery cell flattening device is provided, wherein the flattening head includes a rotary disc, a flattening wheel, and a dust collection cylinder;

[0016] The rotating disk has a vent hole in the middle, which is used to communicate with the negative pressure device;

[0017] The flattening rollers are provided in multiple ways, and the multiple flattening rollers are arranged on the rotating disk along the circumference of the rotating disk. The flattening rollers are used to flatten the ends of the battery cell.

[0018] The first end of the vacuum cleaner is connected to the rotating disk and communicates with the vent; a plurality of the kneading rollers are arranged around the second end of the vacuum cleaner.

[0019] According to the present invention, a rotary multi-station cylindrical battery cell flattening device is provided, wherein the flattening head further includes a center needle;

[0020] The center needle is inserted into the dust collection cylinder, the first end of the center needle is connected to the rotating disk, and the second end of the center needle is used to be inserted into the center hole of the battery cell;

[0021] The second end of the central needle protrudes from the second end of the vacuum tube, and a plurality of the kneading rollers are arranged around the central needle.

[0022] According to the present invention, a rotary multi-station cylindrical battery cell flattening device is provided, wherein the side wall of the central needle is provided with a plurality of grooves, a plurality of flattening wheels and a plurality of grooves are arranged opposite to each other, and the end of the flattening wheel extends into the groove.

[0023] According to the present invention, a rotary multi-station cylindrical battery cell flattening device is provided, wherein at least one of the first rotary drive assembly and the second rotary drive assembly includes a linear module and a rotary drive mechanism.

[0024] The slide of the linear module can reciprocate along the axial direction of the battery cell. The rotary drive mechanism is mounted on the slide of the linear module and is connected to the flattening head.

[0025] According to the present invention, a rotary multi-station cylindrical battery cell flattening device further includes: a first visual inspection mechanism and a second visual inspection mechanism; the first visual inspection mechanism, the flattening mechanism, the second visual inspection mechanism and the battery cell feeding mechanism are arranged sequentially along the circumference of the rotary mechanism;

[0026] The first visual inspection mechanism and the kneading mechanism are electrically connected, and the second visual inspection mechanism and the battery cell feeding mechanism are electrically connected;

[0027] The first visual inspection mechanism is used to visually inspect the position of the battery cell on the turntable mechanism, and the flattening mechanism is used to flatten the battery cell according to the inspection result of the first visual inspection mechanism.

[0028] The second visual inspection mechanism is used to perform visual inspection on the flattened battery cell, and the battery cell unloading mechanism is used to unload the battery cell according to the inspection result of the second visual inspection mechanism.

[0029] A rotary multi-station cylindrical battery cell flattening device according to the present invention further includes: a short-circuit detection mechanism;

[0030] The short-circuit detection mechanism is arranged circumferentially between the flattening mechanism and the cell feeding mechanism along the turntable mechanism; the short-circuit detection mechanism and the cell feeding mechanism are electrically connected;

[0031] The short-circuit detection mechanism is used to perform short-circuit detection on the flattened battery cell, and the battery cell unloading mechanism is used to unload the battery cell according to the detection result of the short-circuit detection mechanism.

[0032] According to the present invention, a rotary multi-station cylindrical battery cell flattening device is provided, wherein the battery cell feeding mechanism includes a first feeding mechanism and a second feeding mechanism;

[0033] The first feeding mechanism and the second feeding mechanism are arranged around the turntable mechanism; the first feeding mechanism is used to feed defective products from the flattened battery cells, and the second feeding mechanism is used to feed good products from the flattened battery cells.

[0034] The present invention provides a rotary multi-station cylindrical battery cell flattening equipment. By arranging the battery cell feeding mechanism, flattening mechanism and battery cell unloading mechanism around the rotary mechanism, the battery cells can be vertically fed, vertically flattened and unloaded in sequence based on the rotatable rotary mechanism. The whole set of equipment occupies little space, has a fast production cycle, and can ensure the flattening efficiency of vertically arranged battery cells. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is one of the structural schematic diagrams of the rotary multi-station cylindrical battery cell flattening device provided by the present invention;

[0037] Figure 2 This is one of the structural schematic diagrams of the rotary multi-station cylindrical battery cell flattening device provided by the present invention;

[0038] Figure 3 This is a schematic diagram of the turntable mechanism provided by the present invention;

[0039] Figure 4 This is a schematic diagram of the battery cell feeding mechanism provided by the present invention;

[0040] Figure 5 This is one of the structural schematic diagrams of the battery cell clamp provided by the present invention;

[0041] Figure 6 This is the second schematic diagram of the battery cell clamp provided by the present invention;

[0042] Figure 7 This is a schematic diagram showing the relative arrangement of the battery cell clamping mechanism and the battery cell clamp provided by the present invention;

[0043] Figure 8 This is one of the structural schematic diagrams of the cell clamping mechanism provided by the present invention;

[0044] Figure 9 This is the second schematic diagram of the battery cell clamping mechanism provided by the present invention;

[0045] Figure 10 This is the third schematic diagram of the battery cell clamping mechanism provided by the present invention;

[0046] Figure 11 This is a schematic diagram of the kneading mechanism provided by the present invention;

[0047] Figure 12 This is a schematic diagram of the structure of a kneading unit in the kneading mechanism provided by the present invention;

[0048] Figure 13 This is a schematic diagram of the installation of the kneading head and the first rotation drive assembly provided by the present invention;

[0049] Figure 14 This invention provides Figure 13 A schematic diagram of the cross-sectional structure;

[0050] Figure 15 This is one of the structural schematic diagrams of the flattened head provided by the present invention;

[0051] Figure 16 This is the second schematic diagram of the structure of the flattened head provided by the present invention;

[0052] Figure 17 This is the third schematic diagram of the structure of the flattened head provided by the present invention;

[0053] Figure 18 This is a schematic diagram of the flattening roller provided by the present invention flattening the end of the battery cell;

[0054] Figure 19 This is a schematic diagram of the structure of the first visual inspection mechanism provided by the present invention;

[0055] Figure 20 This is a schematic diagram of the short-circuit detection mechanism provided by the present invention.

[0056] Figure label:

[0057] 1. Turntable mechanism; 11. Rotary drive assembly; 12. Turntable; 13. Cell clamp; 131. Clamping platform; 132. Clamping unit; 1321. Positioning block; 1322. Clamping block; 1323. Elastic component;

[0058] 2. Cell feeding mechanism; 21. Transfer mechanism; 22. Cell flipping mechanism; 23. Cell pitch changing mechanism; 24. Cell stepping feeder;

[0059] 3. First visual inspection mechanism; 31. First mounting bracket; 32. Lighting equipment; 33. Camera module;

[0060] 4. Kneading mechanism; 41. Kneading head; 411. Rotary disk; 4111. Vent hole; 412. Kneading wheel; 4121. Extrusion section; 4122. Kneading section; 413. Dust suction cylinder; 4131. Notch; 414. Center needle; 4141. Groove; 415. Bearing support; 42. First rotary drive assembly; 421. Linear module; 422. Rotary drive mechanism; 4221. Mounting base; 4222. Rotary drive component; 4223. Transmission assembly; 4224. Rotary shaft; 423. Slide assembly; 4231. First trapezoidal slide; 4232. Second trapezoidal slide; 4233. Adjusting screw; 43. Second rotary drive assembly;

[0061] 5. Short-circuit detection mechanism; 51. Second mounting bracket; 52. First electrode head; 53. Second electrode head; 6. Second visual inspection mechanism;

[0062] 7. Cell feeding mechanism; 71. First feeding mechanism; 72. Second feeding mechanism;

[0063] 8. Cell opening mechanism; 81. Opening control assembly; 811. First drive component; 812. Toggle block; 82. Lifting control assembly; 821. Second drive component; 822. Lifting platform; 823. Cell support component;

[0064] 9. Battery cells. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0066] The following is combined with Figures 1-20 The rotary multi-station cylindrical battery cell flattening equipment provided in this invention will be described in detail through specific embodiments and application scenarios.

[0067] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a rotary multi-station cylindrical battery cell flattening device, which includes a rotary mechanism 1, a battery cell feeding mechanism 2, a flattening mechanism 4, and a battery cell unloading mechanism 7.

[0068] Among them, the battery cell feeding mechanism 2, the flattening mechanism 4 and the battery cell unloading mechanism 7 are arranged around the turntable mechanism 1; the battery cell feeding mechanism 2 is used to place the battery cell 9 vertically on the turntable mechanism 1; the turntable mechanism 1 is used to support the rotation of the battery cell 9; the flattening mechanism 4 is used to flatten the battery cell 9 on the turntable mechanism 1; and the battery cell unloading mechanism 7 is used to unload the flattened battery cell 9.

[0069] In this embodiment of the invention, by arranging the battery cell feeding mechanism 2, the flattening mechanism 4, and the battery cell unloading mechanism 7 around the turntable mechanism 1, the battery cell 9 can be vertically fed, vertically flattened, and unloaded in sequence based on the rotatable turntable mechanism 1. The entire set of equipment occupies little space and has a fast production cycle, which can ensure the flattening efficiency of the vertically arranged battery cell 9.

[0070] In some embodiments, such as Figure 3 As shown, in order to facilitate the vertical mounting of the battery cell 9 on the turntable mechanism 1, the turntable mechanism 1 includes a rotary drive assembly 11, a turntable 12 and a battery cell clamp 13.

[0071] The turntable 12 is mounted on the rotary drive assembly 11. At least one set of battery cell clamps 13 is mounted on the turntable 12 along the circumferential direction. The battery cell clamps 13 are used to clamp and fix the vertically arranged battery cells 9.

[0072] Specifically, the rotary drive assembly 11 includes a rotary drive component and a rotary bearing. The output end of the rotary drive component is connected to the rotary bearing, and the turntable 12 is coaxially mounted on the rotary bearing. The rotary drive component can be a DD motor or a torque motor.

[0073] In actual operation, the rotary drive drives the rotary bearing to rotate, which in turn drives the turntable 12 to rotate. In turn, the turntable 12 drives the cell clamp 13 to move to a position corresponding to any one of the cell loading mechanism 2, the flattening mechanism 4, and the cell unloading mechanism 7.

[0074] In some examples, to further improve the efficiency of flattening the battery cell 9, the turntable 12 can be configured as a regular polygonal turntable, and a battery cell clamp 13 can be installed on each edge of the regular polygonal turntable. At least two sets of flattening mechanisms 4 are provided, and these at least two sets of flattening mechanisms 4 are arranged along the circumference of the turntable 12.

[0075] In some embodiments, such as Figure 4 As shown, in order to vertically place multiple battery cells 9 on the battery cell clamp 13 of the turntable mechanism 1, the battery cell loading mechanism 2 may be equipped with a transfer mechanism 21, a battery cell flipping mechanism 22 and a battery cell pitch changing mechanism 23.

[0076] Specifically, the transfer mechanism 21 is used to transfer multiple horizontally positioned battery cells 9 on the battery cell feeding line 24 to the battery cell flipping mechanism 22; the battery cell flipping mechanism 22 is used to flip the multiple horizontally positioned battery cells 9 to a vertical position; the transfer mechanism 21 is used to transfer the multiple vertically positioned battery cells 9 to the battery cell pitch changing mechanism 23; the battery cell pitch changing mechanism 23 is used to adjust the spacing between any two adjacent batteries 9; the transfer mechanism 21 is used to transfer the multiple battery cells 9 after the spacing adjustment to the battery cell clamp 13, whereby the battery cell clamp 13 clamps and fixes the multiple battery cells 9.

[0077] In some embodiments, such as Figure 5 and Figure 6 As shown, in order to clamp and fix the multiple vertically arranged battery cells 9 conveyed by the battery cell feeding mechanism 2, the battery cell clamp 13 may specifically include a clamping platform 131 and multiple clamping units 132. The clamping platform 131 is connected to the turntable 12. The multiple clamping units 132 are arranged on the clamping platform 131 along the length direction of the clamping platform 131. Each clamping unit 132 is used to clamp and fix the vertically arranged battery cells 9.

[0078] Specifically, the clamping unit 132 includes a positioning block 1321 and a clamping block 1322 disposed opposite to each other. A clamping opening for clamping the battery cell 9 is formed between the positioning block 1321 and the clamping block 1322. The positioning block 1321 and the clamping block 1322 are connected by an elastic component 1323. The elastic component 1323 may be a spring.

[0079] In some embodiments, such as Figure 3 and Figure 7 As shown, the battery cell flattening equipment is also equipped with a battery cell clamping mechanism 8. Multiple sets of battery cell clamping mechanisms 8 are provided, and the multiple sets of battery cell clamping mechanisms 8 are arranged around the circumference of the turntable mechanism 1. At least some of the multiple sets of battery cell clamping mechanisms 8 are arranged opposite to the battery cell feeding mechanism 2 and the battery cell unloading mechanism 7.

[0080] Among them, the cell opening and clamping mechanism 8 is located on the lower side of the turntable 12. As the turntable 12 rotates, the turntable 12 can drive the cell clamp 13 to move to the upper side of the cell opening and clamping mechanism 8. Based on the cooperation between the cell opening and clamping mechanism 8 and the cell clamp 13, the cell opening and clamping mechanism 8 can control the clamping state of the cell clamp 13 on the cell 9.

[0081] In some embodiments, such as Figures 8 to 10As shown, the cell opening and closing mechanism 8 includes an opening and closing control component 81. The opening and closing control component 81 includes a first driving member 811 and a plurality of levers 812. The first driving member 811 and the plurality of levers 812 are dynamically coupled. The plurality of levers 812 are arranged one-to-one with a plurality of clamping units 132 on the cell clamp 13, and each lever 812 is arranged opposite to a clamping block 1322 on each clamping unit 132. The first driving member 811 is used to drive the levers 812 along the length direction of the clamping platform 131, and the levers 812 drive the clamping blocks 1322 to move toward the side away from the positioning block 1321. The elastic component 1323 is used to drive the clamping blocks 1322 to move toward the side closer to the positioning block 1321 along the length direction of the clamping platform 131, so as to realize the clamping of the cell 9.

[0082] The cell clamping mechanism 8 also includes a lifting control assembly 82, which includes a second drive member 821 and a lifting platform 822. The second drive member 821 and the lifting platform 822 are connected to drive the lifting platform 822 to move up and down along the height direction of the clamping platform 131. Both the first drive member 811 and the second drive member 821 can be cylinders.

[0083] Furthermore, the clamping control component 81 is mounted on the lifting platform 822, and the clamping block 1322 has a slot on the side facing the cell clamping mechanism 8, and the lever 812 of the clamping control component 81 can extend into the slot.

[0084] In practical applications, the lifting control component 82 controls the clamping control component 81 to rise until the lever 812 of the clamping control component 81 extends into the slot on the clamping block 1322; the first driving component 811 of the clamping control component 81 drives the lever 812 to move the clamping block 1322 toward the side away from the positioning block 1321, so that the clamping opening between the positioning block 1321 and the clamping block 1322 opens, thereby realizing the clamping control of the battery cell clamp 13.

[0085] Of course, when the lever 812 of the clamping control component 81 separates from the slot on the clamping block 1322, the clamping block 1322 moves toward the side closer to the positioning block 1321 under the drive of the elastic component 1323, until the battery cell 9 is clamped between the positioning block 1321 and the clamping block 1322.

[0086] In this embodiment, the lifting control component 82 also includes a battery cell support 823. Multiple battery cell support 823s are provided on the lifting platform 822. The multiple battery cell support 823s are arranged along the length direction of the clamping platform 131, and the multiple battery cell support 823s are arranged opposite to the multiple clamping units 132.

[0087] When each clamping unit 132 of the cell clamp 13 is in the open state, the cell support 823 can support the lower end of the cell 9 in the corresponding clamping unit 132.

[0088] In some embodiments, such as Figure 11 and Figure 12 As shown, in order to improve the efficiency of kneading the battery cell 9, the kneading mechanism 4 includes at least one kneading unit. The kneading unit includes a first rotary drive assembly 42, a second rotary drive assembly 43, and a kneading head 41. The first rotary drive assembly 42 and the second rotary drive assembly 43 are arranged opposite each other, and both the first rotary drive assembly 42 and the second rotary drive assembly 43 are equipped with kneading heads 41.

[0089] Since the first rotary drive assembly 42 and the second rotary drive assembly 43 of each kneading unit are arranged vertically opposite each other, the vertically arranged battery cell 9 can be clamped between the kneading head 41 on the first rotary drive assembly 42 and the kneading head 41 on the second rotary drive assembly 43. In practical applications, the kneading mechanism 4 can perform kneading operations on multiple battery cells 9 through multiple sets of kneading units arranged side by side.

[0090] Among them, one of the flattening head 41 on the first rotary drive assembly 42 and the flattening head 41 on the second rotary drive assembly 43 is used to flatten the positive terminal of the battery cell 9, and the other is used to flatten the negative terminal of the battery cell 9.

[0091] Based on the different hardness characteristics of the positive and negative terminals of the battery cell 9, the rotation direction and rotation speed of the first rotary drive assembly 42 and the second rotary drive assembly 43 can be adaptively set according to the kneading effect, so that the kneading surface at the end of the battery cell 9 is dense and the flatness of the kneading surface is ensured, so as to form a glossy chrysanthemum pattern on the kneading surface and increase the rate at which the electrolyte passes through the kneading surface.

[0092] In some embodiments, such as Figure 13 and Figure 14 As shown, at least one of the first rotary drive assembly 42 and the second rotary drive assembly 43 includes a linear module 421 and a rotary drive mechanism 422; the first rotary drive assembly 42 will be used as an example for specific explanation below.

[0093] The first rotary drive assembly 42 is provided with a linear module 421 and a rotary drive mechanism 422. The slide of the linear module 421 slides back and forth along the axial direction of the cell 9. The rotary drive mechanism 422 is mounted on the slide of the linear module 421 and is connected to the flattening head 41.

[0094] In practical applications, since the rotary drive mechanism 422 is connected to the flattening head 41, the rotary drive mechanism 422 is driven by the linear module 421 to move along the axial direction of the battery cell 9. This allows the vertically distributed battery cells 9 to be clamped between the flattening head on the first rotary drive assembly 42 and the flattening head on the second rotary drive assembly 43, thus meeting the flattening requirements of battery cells 9 of different lengths.

[0095] In some embodiments, such as Figure 14 As shown, the linear module 421 is connected to the slide assembly 423 and the rotary drive mechanism 422; the slide assembly 423 includes a first trapezoidal slide 4231, a second trapezoidal slide 4232 and an adjusting screw 4233.

[0096] A first trapezoidal slide 4231 is mounted on the slide of the linear module 421. The inclined surface of the second trapezoidal slide 4232 is in sliding engagement with the inclined surface of the first trapezoidal slide 4231. A rotary drive mechanism 422 is mounted on the second trapezoidal slide 4232. An adjusting screw 4233 extends along the sliding direction of the slide of the linear module 421. The first end of the adjusting screw 4233 is rotatably mounted on the first trapezoidal slide 4231, and the second end of the adjusting screw 4233 is threadedly connected to the second trapezoidal slide 4232.

[0097] Specifically, since the first trapezoidal slide 4231 and the second trapezoidal slide 4232 are connected by an adjusting screw 4233, rotating the adjusting screw 4233 can drive the second trapezoidal slide 4232 to move relative to the first trapezoidal slide 4231. Because the first trapezoidal slide 4231 and the second trapezoidal slide 4232 are connected by an inclined sliding engagement, the height of the second trapezoidal slide 4232 relative to the first trapezoidal slide 4231 will change as the second trapezoidal slide 4232 moves relative to the first trapezoidal slide 4231.

[0098] Thus, in this embodiment, by controlling the rotation of the adjusting screw 4233, the rotary drive mechanism 422 can be controlled to drive the flattening head 41 to move along the axial direction perpendicular to the battery cell 9. This arrangement is beneficial for adjusting the coaxiality of the flattening head 41 on the first rotary drive assembly 42 and the flattening head 41 on the second rotary drive assembly 43, so as to ensure the flattening quality of the battery cell 9.

[0099] In some embodiments, such as Figure 14 As shown, in order to drive the kneading head 41 to rotate, the rotary drive mechanism 422 may be provided with a mounting base 4221, a rotary drive component 4222, a transmission assembly 4223 and a rotary shaft 4224.

[0100] The mounting base 4221 is connected to the slide of the linear module 421, the rotary drive 4222 is connected to the mounting base 4221, and the rotary shaft 4224 is rotatably mounted on the mounting base 4221; the rotary shaft 4224 is connected to the kneading head 41. The rotary drive 4222 is connected to the rotary shaft 4224 through the transmission assembly 4223 to drive the rotary shaft 4224 to rotate the kneading head 41.

[0101] The rotary drive component 4222 can be a servo motor known in the art. The transmission component 4223 can be a belt drive mechanism or a gear drive mechanism known in the art.

[0102] In some embodiments, such as Figures 15 to 17 As shown, the kneading head 41 includes a rotating disc 12, a kneading wheel 412, and a dust collection cylinder 413.

[0103] A ventilation hole 4111 is provided in the middle of the rotating disk 12, which is used to communicate with the negative pressure device; multiple kneading rollers 412 are provided, which are arranged around the rotating disk 12 in the circumference, and are used to knead the end of the battery cell 9; the first end of the vacuum tube 413 is connected to the rotating disk 12 and communicates with the ventilation hole 4111; multiple kneading rollers 412 are arranged around the second end of the vacuum tube 413.

[0104] The dust collection cylinder 413 is connected to the hollow rotating shaft 4224 through the vent 4111, and the rotating shaft 4224 is connected to the negative pressure device.

[0105] Understandably, when arranging the various kneading rollers 412, this embodiment can set multiple kneading rollers 412 to be evenly distributed in a circle on the rotating disk 12 to ensure the balance of force during the kneading process of the end of the battery cell 9, thereby improving the kneading quality.

[0106] To ensure that multiple kneading rollers 412 can knead the end of the same battery cell 9, this embodiment can be configured such that each kneading roller 412 can fit against the end face of the battery cell 9, and the central axis of each kneading roller 412 is set to the same angle with the rotation axis 4224 of the rotating disk 12.

[0107] To ensure a smoothing effect on the ends of the battery cell 9, this embodiment can be configured such that each smoothing roller 412 is rotatably mounted on the rotating disk 12. The smoothing roller 412 can be made of zirconia ceramic with high hardness.

[0108] During the process of flattening the end of the battery cell 9, by activating the negative pressure device, a negative pressure environment can be formed at the second end of the dust collection cylinder 413. This ensures that the dust generated by each flattening roller 412 during flattening is collected by the dust collection cylinder 413, and prevents small dust particles from adhering to the flattening roller 412 and related equipment due to static electricity. It also prevents dust from escaping into the work station environment, thereby ensuring a clean and pollution-free work station environment.

[0109] Thus, in this embodiment, by setting a smoothing roller 412 and a dust collection cylinder 413 on the rotating disk 12, the ends of the vertically arranged battery cells 9 can be smoothed by multiple smoothing rollers 412 during the rotation of the rotating disk 12. Since multiple smoothing rollers 412 are arranged around the second end of the dust collection cylinder 413, the second end of the dust collection cylinder 413 extends towards the end of the battery cell 9. At the same time as the ends of the battery cells 9 are smoothed by multiple smoothing rollers 412, the dust generated by each smoothing roller 412 during smoothing can be concentrated and cleaned by the dust collection cylinder 413. The setting of the dust collection cylinder 413 will not affect the normal smoothing operation of each smoothing roller 412.

[0110] In some embodiments, such as Figure 15 and Figure 16 As shown, in order to ensure that the multiple kneading rollers 412 are compactly arranged at the second end of the vacuum tube 413 and to ensure the vacuuming effect of the vacuum tube 413, this embodiment provides multiple notches 4131 at the second end of the vacuum tube 413. The multiple kneading rollers 412 and the multiple notches 4131 are arranged opposite to each other, and at least some of the kneading rollers 412 are located in the notches 4131. The notches 4131 are arc-shaped.

[0111] In some embodiments, such as Figures 15 to 17 As shown, the flattening head 41 is also provided with a center needle 414; the center needle 414 is inserted into the dust collection cylinder 413, the first end of the center needle 414 is connected to the rotating disk 12, and the second end of the center needle 414 is used to be inserted into the center hole of the battery cell 9.

[0112] The second end of the center needle 414 protrudes from the second end of the vacuum tube 413, and multiple kneading rollers 412 are arranged around the center needle 414.

[0113] Specifically, in this embodiment, by setting a center pin 414, the second end of the center pin 414 can be inserted into the center hole of the battery cell 9 during the flattening process of the end of the battery cell 9. This setting method not only ensures that each flattening roller 412 rotates relative to the central axis of the battery cell 9 based on the positioning function of the center pin 414, and ensures that the peripheral electrode plates of the end of the battery cell 9 are gathered towards the center of the battery cell 9, thereby ensuring the flattening quality of the end of the battery cell 9, but also ensures the smooth airflow of the center hole of the battery cell 9 during the flattening process, preventing the battery cell 9 from becoming blocked during the flattening process.

[0114] In order to enhance the positioning effect of the center pin 414, this embodiment can be configured such that the diameter of the center pin 414 gradually decreases from the first end to the second end along the axial direction of the center pin 414.

[0115] In some embodiments, such as Figure 16 As shown, the side wall of the center needle 414 is provided with multiple grooves 4141, and multiple kneading rollers 412 and multiple grooves 4141 are arranged opposite to each other, with the end of the kneading roller 412 extending into the groove 4141.

[0116] Specifically, in this embodiment, by setting the end of the flattening roller 412 to extend into the groove 4141, the gap between the center pin 414 and the flattening roller 412 can be reduced, ensuring a seamless connection between the side wall of the center pin 414 and the surface of the flattening roller 412. This prevents the electrode at the opening corresponding to the center hole of the battery cell 9 from being squeezed into the gap between the center pin 414 and the flattening roller 412. This arrangement not only prevents the center hole of the battery cell 9 from becoming blocked during flattening, but also ensures that the end of the battery cell 9 forms a flat and dense plane after flattening.

[0117] In some embodiments, such as Figure 18 As shown, the flattening roller 412 includes a pressing part 4121 and a flattening part 4122; the pressing part 4121 has a pressing surface, which is used to fit against the periphery of the battery cell 9; the flattening part 4122 is conical, with the large end of the flattening part 4122 located on the pressing surface, and the small end of the flattening part 4122 extending into the groove 4141, and the side of the flattening part 4122 is used to fit against the end face of the battery cell 9.

[0118] Specifically, as each flattening roller 412 rotates with the rotating disk 411, the pressing surface of the corresponding pressing part 4121 of each flattening roller 412 is attached to the periphery of the end of the battery cell 9; at the same time, the side of the corresponding flattening part 4122 of each flattening roller 412 contacts the end face of the battery cell 9. Based on the fact that multiple flattening rollers 412 simultaneously flatten the end of the battery cell 9 in the circumferential direction, the flattening efficiency is greatly improved while ensuring the uniformity of force on the end of the battery cell 9, and a better mechanical flattening effect is achieved.

[0119] In some embodiments, such as Figures 15 to 17 As shown, the kneading head 41 is also provided with a bearing support 415. The bearing support 415 is adjustablely provided on the rotating disk 411 along the radial direction of the rotating disk 411. There are multiple bearing supports 415, which are arranged along the circumference of the rotating disk 411. Multiple kneading wheels 412 are installed on the multiple bearing supports 415 in a corresponding manner.

[0120] Specifically, when flattening the end of the battery cell 9, the installation position of the flattening roller 412 on the rotating disk 411 can be adjusted radially according to the diameter of the battery cell 9 via the bearing support 415 to meet the actual flattening requirements of the battery cell 9.

[0121] Meanwhile, during the process of flattening the end of the battery cell 9, since the flattening wheel 412 is rotatably mounted on the bearing support 415, the flattening wheel 412 and the end of the battery cell 9 are in rolling contact. This not only effectively prevents direct rigid contact during flattening from damaging the end of the battery cell 9, but also provides effective protection for the flattening wheel 412.

[0122] In some embodiments, such as Figure 1 and Figure 2 As shown, the battery cell flattening equipment also includes a first visual inspection mechanism 3 and a second visual inspection mechanism 6.

[0123] The first visual inspection mechanism 3, the kneading mechanism 4, the second visual inspection mechanism 6, and the cell feeding mechanism 7 are arranged sequentially along the circumference of the turntable mechanism 1; the first visual inspection mechanism 3 and the kneading mechanism 4 are electrically connected, and the second visual inspection mechanism 6 and the cell feeding mechanism 7 are electrically connected.

[0124] In actual operation, as the turntable mechanism 1 carries the battery cell 9 to rotate, the first visual inspection mechanism 3 performs visual inspection on the position of the battery cell 9 on the turntable mechanism 1, and the flattening mechanism 4 performs flattening operation on the battery cell 9 according to the inspection results of the first visual inspection mechanism 3.

[0125] Specifically, the position of the battery cell 9 on the turntable mechanism 1 refers to the clamping position of each battery cell 9 on the battery cell clamp 13.

[0126] Correspondingly, after the flattening mechanism 4 completes the flattening operation on the battery, as the turntable mechanism 1 continues to rotate, the second vision inspection mechanism 6 performs visual inspection on the flattened battery cell 9, and the battery cell unloading mechanism 7 performs the unloading operation on the battery cell 9 according to the inspection result of the second vision inspection mechanism 6, thereby automatically realizing the separate storage of good and defective battery cells.

[0127] like Figure 1 and Figure 19 As shown, the first visual detection mechanism 3 and the second visual detection mechanism 6 in this embodiment can be configured with the same structure. The first visual detection mechanism 3 will be used as an example for specific explanation below.

[0128] In some examples, the first visual inspection mechanism 3 includes a first mounting bracket 31, a lighting device 32, and a plurality of camera modules 33, which are respectively mounted on the first mounting bracket 31.

[0129] When the cell clamp 13 on the turntable mechanism 1 rotates to the position corresponding to the first visual inspection mechanism 3, multiple camera modules 33 face the clamping unit 132 on the cell clamp 13 one by one, and each camera module 33 can perform visual inspection on the cell 9 clamped in the corresponding clamping unit 132.

[0130] In some embodiments, such as Figure 1 and Figure 2 As shown, the battery cell flattening equipment also includes a short-circuit detection mechanism 5; the short-circuit detection mechanism 5 is arranged circumferentially between the flattening mechanism 4 and the battery cell feeding mechanism 7 along the turntable mechanism 1; the short-circuit detection mechanism 5 and the battery cell feeding mechanism 7 are electrically connected.

[0131] In actual operation, after the flattening mechanism 4 completes the flattening operation on the battery cell 9, as the turntable mechanism 1 continues to rotate, the short circuit detection mechanism 5 performs short circuit detection on the flattened battery cell 9, and the battery cell unloading mechanism 7 performs the unloading operation on the battery cell 9 according to the detection result of the short circuit detection mechanism 5, thereby automatically realizing the separate storage of good and defective products in the battery cell.

[0132] In some examples, such as Figure 20 As shown, the short-circuit detection mechanism 5 includes a second mounting bracket 51, a plurality of first electrode heads 52 and a plurality of second electrode heads 53; the plurality of first electrode heads 52 and the plurality of second electrode heads 53 are all disposed on the second mounting bracket 51, the plurality of first electrode heads 52 are disposed one on each side of the plurality of second electrode heads 53, and the first electrode heads 52 can move relative to the second electrode heads 53 in the vertical direction.

[0133] When the cell clamp 13 is rotated to the position corresponding to the short circuit detection mechanism 5, the first electrode head 52 and the second electrode head 53 are arranged opposite each other on the upper and lower sides of the clamping unit 132 on the cell clamp 13. This arrangement facilitates clamping the first electrode head 52 and the second electrode head 53 on the opposite side of the cell 9 to perform short circuit detection on the flattened cell 9.

[0134] As the turntable mechanism 1 carries the battery cell 9 and rotates, it can move the battery cell 9 to a position corresponding to any one of the first visual inspection mechanism 3, the second visual inspection mechanism 6, and the short-circuit detection mechanism 5. Therefore, in this embodiment, the positions of the first visual inspection mechanism 3, the second visual inspection mechanism 6, and the short-circuit detection mechanism 5 relative to the flattening mechanism 4 are not specifically limited along the circumference of the turntable mechanism 1.

[0135] Of course, in order to improve the production cycle of the entire battery cell flattening equipment, in this embodiment, the battery cell feeding mechanism 2, the first vision inspection mechanism 3, the flattening mechanism 4, the short circuit detection mechanism 5, the second vision inspection mechanism 6 and the battery cell unloading mechanism 7 can be arranged sequentially along the circumference of the turntable mechanism 1.

[0136] In some embodiments, such as Figure 1 and Figure 2 As shown, the cell feeding mechanism 7 includes a first feeding mechanism 71 and a second feeding mechanism 72. The first feeding mechanism 71 and the second feeding mechanism 72 are arranged around the turntable mechanism 1.

[0137] In practical applications, this embodiment can selectively control the first unloading mechanism 71 and the second unloading mechanism 72 to perform the unloading operation of the battery cell based on the detection results of the short circuit detection mechanism 5 and the second visual detection mechanism 6.

[0138] Specifically, if any problem occurs in the short-circuit test or visual inspection of the flattened battery cell 9, the flattened battery cell 9 can be determined to be a defective product. At this time, the control mechanism performs linkage control on the first feeding mechanism 71, and the first feeding mechanism 71 feeds the defective product from the flattened battery cell 9.

[0139] When the short-circuit test and visual inspection of the flattened battery cell 9 are both qualified, the flattened battery cell 9 can be determined to be a good product. At this time, the control mechanism performs linkage control on the second feeding mechanism 72, and the second feeding mechanism 72 feeds the good products from the flattened battery cells 9.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary multi-station cylindrical battery cell flattening device, characterized in that, include: Turntable mechanism, cell feeding mechanism, flattening mechanism and cell unloading mechanism; The battery cell feeding mechanism, the flattening mechanism, and the battery cell unloading mechanism are arranged around the turntable mechanism; The battery cell loading mechanism is used to vertically place the battery cell on the turntable mechanism; the turntable mechanism is used to support the rotation of the battery cell; the flattening mechanism is used to flatten the battery cell on the turntable mechanism; the battery cell unloading mechanism is used to unload the flattened battery cell. The kneading mechanism includes at least one kneading unit, which includes a first rotary drive assembly, a second rotary drive assembly, and a kneading head. The first rotary drive assembly and the second rotary drive assembly are arranged opposite each other, and the kneading head is mounted on both the first rotary drive assembly and the second rotary drive assembly. The turntable mechanism includes a rotary drive assembly, a turntable, and a cell clamp; The turntable is mounted on the rotary drive assembly, and at least one set of the battery cell clamps is mounted on the turntable along the circumferential direction. The battery cell clamps are used to clamp and fix the battery cells. The cell clamp can be moved to a position corresponding to any one of the cell feeding mechanism, the flattening mechanism, and the cell unloading mechanism under the drive of the turntable; It also includes: a cell clamping mechanism; The battery cell clamping mechanism is provided in multiple sets, which are arranged around the circumference of the turntable mechanism. At least some of the battery cell clamping mechanisms are arranged opposite to the battery cell feeding mechanism and the battery cell unloading mechanism. The battery cell clamping mechanism and the battery cell clamp cooperate to control the clamping state of the battery cell by the battery cell clamp.

2. The rotary multi-station cylindrical battery cell flattening equipment according to claim 1, characterized in that, The flattening head includes a rotating disc, flattening rollers, and a dust collection cylinder; The rotating disk has a vent hole in the middle, which is used to communicate with the negative pressure device; The flattening rollers are provided in multiple ways, and the multiple flattening rollers are arranged on the rotating disk along the circumference of the rotating disk. The flattening rollers are used to flatten the ends of the battery cell. The first end of the vacuum cleaner is connected to the rotating disk and communicates with the vent; a plurality of the kneading rollers are arranged around the second end of the vacuum cleaner.

3. The rotary multi-station cylindrical battery cell flattening equipment according to claim 2, characterized in that, The flattened head also includes a central needle; The center needle is inserted into the dust collection cylinder, the first end of the center needle is connected to the rotating disk, and the second end of the center needle is used to be inserted into the center hole of the battery cell; The second end of the central needle protrudes from the second end of the vacuum tube, and a plurality of the kneading rollers are arranged around the central needle.

4. The rotary multi-station cylindrical battery cell flattening equipment according to claim 3, characterized in that, The sidewall of the central needle is provided with multiple grooves, and multiple kneading rollers and multiple grooves are arranged opposite to each other, with the end of the kneading rollers extending into the grooves.

5. The rotary multi-station cylindrical battery cell flattening device according to claim 1, characterized in that, At least one of the first rotary drive assembly and the second rotary drive assembly includes a linear module and a rotary drive mechanism; The slide of the linear module can reciprocate along the axial direction of the battery cell. The rotary drive mechanism is mounted on the slide of the linear module and is connected to the flattening head.

6. The rotary multi-station cylindrical battery cell flattening device according to any one of claims 1 to 5, characterized in that, Also includes: The first visual inspection mechanism and the second visual inspection mechanism are arranged sequentially along the circumference of the turntable mechanism. The first visual inspection mechanism and the kneading mechanism are electrically connected, and the second visual inspection mechanism and the battery cell feeding mechanism are electrically connected; The first visual inspection mechanism is used to visually inspect the position of the battery cell on the turntable mechanism, and the flattening mechanism is used to flatten the battery cell according to the inspection result of the first visual inspection mechanism. The second visual inspection mechanism is used to perform visual inspection on the flattened battery cell, and the battery cell unloading mechanism is used to unload the battery cell according to the inspection result of the second visual inspection mechanism.

7. The rotary multi-station cylindrical battery cell flattening device according to claim 6, characterized in that, This also includes: short-circuit testing organizations; The short-circuit detection mechanism is arranged circumferentially between the flattening mechanism and the cell feeding mechanism along the turntable mechanism; the short-circuit detection mechanism and the cell feeding mechanism are electrically connected; The short-circuit detection mechanism is used to perform short-circuit detection on the flattened battery cell, and the battery cell unloading mechanism is used to unload the battery cell according to the detection result of the short-circuit detection mechanism.

8. The rotary multi-station cylindrical battery cell flattening device according to any one of claims 1 to 5, characterized in that, The cell feeding mechanism includes a first feeding mechanism and a second feeding mechanism; The first feeding mechanism and the second feeding mechanism are arranged around the turntable mechanism; the first feeding mechanism is used to feed defective products from the flattened battery cells, and the second feeding mechanism is used to feed good products from the flattened battery cells.

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