Battery cell packing machine

Abstract

The invention relates to the technical field of battery production, and discloses a battery cell packing machine which comprises a rack, a code scanning and distributing device, a variable-pitch feeding device, an NG conveying line, a middle cover feeding device, a transferring device and a discharging conveying line, and the code scanning and distributing device, the variable-pitch feeding device, the NG conveying line, the middle cover feeding device, the transferring device and the discharging conveying line are arranged on the rack. A battery cell feeding station and a middle cover feeding station are arranged on the rack; the code scanning and distributing device is used for conveying the battery cells and scanning codes of the battery cells; the variable-pitch feeding device is used for receiving the code-scanning qualified battery cells output by the code-scanning distribution device and conveying the code-scanning qualified battery cells to a battery cell feeding station, and the distance between every two adjacent battery cells on the battery cell feeding station is equal to the distance between every two adjacent battery cell containing grooves of the middle cover; the NG conveying line is used for receiving and conveying the code-scanning unqualified battery cells output by the code-scanning and material-distributing device; the middle cover feeding device is used for conveying middle covers to a middle cover feeding station; the transferring device is used for grabbing the middle cover of the middle cover feeding station and grabbing the at least two battery cells of the battery cell feeding station to be transferred to the discharging conveying line. According to the invention, the problem of how to improve the production efficiency and quality of the battery cell can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and particularly relates to a battery cell packing machine. Background Art

[0002] As an important component of lithium batteries, the production efficiency and quality of battery cells directly affect the overall performance and market competitiveness of lithium batteries. However, in the existing batch production process of battery cells, there are still significant efficiency bottlenecks in the processes of scanning codes and packing, seriously restricting the overall efficiency of the battery cell production line.

[0003] Before leaving the factory, battery cells must go through the key step of scanning codes, aiming to record and trace the detailed information of the battery cells, including but not limited to key data such as model, production date, manufacturer, etc. However, the existing method of scanning codes for battery cells highly relies on manual operation, that is, workers need to perform scanning operations one by one while the battery cells are moving along the conveyor belt. This not only consumes a large amount of manpower but also has low efficiency. In addition, due to the instability of manual operation, the accuracy and consistency of scanning codes cannot be guaranteed, thus affecting the accuracy of data and the subsequent product traceability ability. After the scanning is completed, the qualified battery cells need to be manually removed from the conveyor belt one by one and manually placed into each battery cell accommodation groove of the middle cover. This step also relies on manual operation and has low efficiency. Finally, after the battery cells are placed, multiple middle covers filled with battery cells need to be stacked to a specified height and then output to complete the packing work of the battery cells.

[0004] In summary, there are serious efficiency bottlenecks in the processes of scanning codes and packing in the existing battery cell production process, which not only affect the production efficiency of battery cells but also increase the production cost and quality risk. Therefore, it is necessary to develop a battery cell packing machine to improve the production efficiency and quality of battery cells and reduce the production cost and quality risk. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] The present invention provides a battery cell packing machine, and the technical problem that can be solved at least is: how to improve the production efficiency and quality of battery cells.

[0007] (II) Technical Solutions

[0008] To solve the above technical problems, the present invention provides the following technical solutions: A battery cell packing machine, comprising:

[0009] A frame, on which a battery cell feeding station and a middle cover feeding station are provided;

[0010] A code scanning and material distribution device, which is arranged on the frame and is used for conveying battery cells and scanning codes for the battery cells;

[0011] A variable-distance loading device comprises a first conveyor line, a second conveyor line, a transport mechanism, a transport trolley, a first transfer mechanism and a second transfer mechanism arranged on a frame, wherein the first conveyor line is used to receive and transport the scanned qualified battery cells output by the scan code dividing device, at least two transport trolleys are provided, and a storage space for storing a single battery cell is provided on the transport trolley, the transport mechanism is transmission-connected to at least two transport trolleys, the transport mechanism is used to drive at least two transport trolleys to reciprocate between the first conveyor line and the second conveyor line, so that the transport trolleys alternately dock with the first conveyor line and the second conveyor line, the first transfer mechanism is used to grab the battery cells on the first conveyor line and transfer them to the docked storage space, the second transfer mechanism is used to grab the battery cells in the storage space and transfer them to the docked second conveyor line, at least two second conveyor lines are arranged in parallel, and at least two second conveyor lines are used to transport at least two battery cells in parallel to the battery cell loading station, and the spacing between adjacent battery cells on the battery cell loading station is the same as the spacing between adjacent battery cell accommodating grooves of the middle cover;

[0012] NG conveyor line, which is installed on the frame and is used to receive and convey the unqualified cells output by the scanning and sorting device;

[0013] The middle cover feeding device is arranged on the frame and is used to convey the middle cover to the middle cover feeding station;

[0014] The transfer device and the unloading conveyor line are both arranged on the frame. The transfer device is used to grab the middle cover of the middle cover loading station and transfer it to the unloading conveyor line, and to grab at least two battery cells of the battery cell loading station and transfer them to at least two battery cell accommodating grooves of the middle cover of the unloading conveyor line.

[0015] Further, the aforementioned transport trolley is provided with a positioning structure for positioning the battery cell in the storage space, and the positioning structure includes:

[0016] A fixing rod is fixed in the storage space;

[0017] The movable connecting rod comprises a first rod portion and a second rod portion connected as one body, wherein the integral connection between the first rod portion and the second rod portion is hinged on the transport trolley;

[0018] An elastic member and a push plate, the push plate is slidably arranged on the transport trolley, the two ends of the elastic member are respectively connected to the push plate and the transport trolley, the elastic member has an elastic force for driving the push plate to slide toward the second rod portion, so as to drive the first rod portion to rotate toward the fixed rod, so that the first rod portion and the fixed rod are respectively tightly abutted against the two sides of the battery cell in the storage space.

[0019] It is further provided that the end of the first rod portion is rotatably connected to a roller for abutting against the battery cell in the storage space.

[0020] Further setting: The aforementioned transportation mechanism includes a driving component and a conveying track disposed on the frame. The conveying track is in a closed-loop shape. At least two transportation carts are connected to the conveying track and are connected to the output end of the driving component. The driving component is used to drive at least two transportation carts to travel along the conveying track.

[0021] Further setting: The aforementioned variable-spacing loading device further includes:

[0022] A third conveying line. A plurality of conveying channels for continuously conveying battery cells are arranged in parallel on the first conveying line, the second conveying line, and the third conveying line, and the number of conveying channels on the first conveying line, the second conveying line, and the third conveying line is set to increase progressively;

[0023] A transfer conveying line and a transfer driving mechanism. The transfer conveying line is disposed between the second conveying line and the third conveying line. The transfer driving mechanism is disposed on the frame and is in transmission connection with the transfer conveying line. The transfer driving mechanism is used to drive the transfer conveying line to alternately dock with the second conveying line and the third conveying line to convey the battery cells on the second conveying line to the third conveying line.

[0024] Further setting: The aforementioned variable-spacing loading device further includes a secondary code scanning mechanism. The secondary code scanning mechanism is disposed above the third conveying line and is used to perform secondary scanning of the two-dimensional code on the battery cell;

[0025] The battery cell packing machine further includes a secondary defective conveying line. The transfer device is further used to grab the unqualified battery cells at the battery cell loading station and transfer them to the secondary defective conveying line.

[0026] Further setting: The aforementioned code scanning and sorting device includes:

[0027] A feeding conveying line, which is disposed on the frame and is used to convey battery cells;

[0028] A battery cell code scanning mechanism, which is disposed above the output end of the feeding conveying line and is used to scan the two-dimensional code on the battery cell;

[0029] A sorting conveying line and a sorting driving mechanism. The sorting driving mechanism is disposed on the frame and is in transmission connection with the sorting conveying line. The sorting driving mechanism is used to drive the sorting conveying line to dock with the feeding conveying line, the variable-spacing loading device, or the NG conveying line to convey the battery cells with qualified code scanning on the feeding conveying line to the variable-spacing loading device, or to convey the battery cells with unqualified code scanning on the feeding conveying line to the NG conveying line.

[0030] Further setting: A positioning sensing member is further disposed at the output end of the aforementioned feeding conveying line and is used to sense whether the battery cell reaches the output end of the feeding conveying line.

[0031] Further setting: The aforementioned middle cover loading device includes:

[0032] The middle cover conveying line is arranged on the frame and is used to convey the middle covers one by one and / or in stacks to the middle cover lifting mechanism;

[0033] The middle cover lifting mechanism and the middle cover clamping mechanism, the middle cover clamping mechanism is arranged on the output end of the middle cover lifting mechanism, and is used to clamp or release the middle cover, the middle cover lifting mechanism is used to drive the middle cover clamping mechanism to lift and lower, so as to drive the middle covers to lift and lower one by one or stack by stack, so as to transport the middle cover or the uppermost middle cover to the middle cover loading station.

[0034] (III) Beneficial effects

[0035] Compared with the prior art, the battery packing machine provided by the present invention has the following beneficial effects:

[0036] 1. When the battery cell packaging machine provided by the present invention is used, first, the battery cells after production are input into the code scanning and distributing device, the code scanning and distributing device transports the battery cells and scans the codes of the battery cells; after the code scanning and distributing device scans the codes, the battery cells that pass the code scanning are sent to the first conveyor line, at this time, the starting position of each transport trolley is docked with the first conveyor line; then, the first transfer mechanism transfers the battery cells at the output end of the first conveyor line to the storage space of each transport trolley, and then, the transport mechanism drives each transport trolley to dock with each second conveyor line, and the second transfer mechanism transfers the battery cells in each storage space to each second conveyor line, and at least two second conveyor lines transport at least two battery cells in parallel to the battery cell loading station, so that the battery cell loading station The spacing between adjacent battery cells on the cover is the same as the spacing between adjacent battery cell accommodating grooves of the middle cover; at the same time, the middle cover loading device transports the middle cover to the middle cover loading station, and the transfer device grabs the middle cover of the middle cover loading station and transfers it to the unloading conveyor line; finally, the transfer device grabs at least two battery cells of the battery cell loading station and transfers them to at least two battery cell accommodating grooves of the middle cover of the unloading conveyor line, and then repeats the battery cell loading and transfer operations until the battery cell accommodating grooves of the middle cover are full of battery cells, and the transfer device grabs the middle cover of the middle cover loading station again and stacks it on the above-mentioned middle cover filled with battery cells, and repeats this process continuously, stacking multiple middle covers filled with battery cells to a specified height and then outputting them through the unloading conveyor line to complete the packing of the battery cells. It can be seen that the present invention, from scanning, transporting, placing to stacking of battery cells, the entire process is automatically completed by the equipment, replacing manual labor, significantly improving the production efficiency of battery cells, while reducing manual intervention, reducing the occurrence of errors and damage, thereby comprehensively improving the quality and market competitiveness of battery cells.

[0037] 2. The present invention can scan and classify the battery cells for transportation through the scanning and sorting device, thereby preventing unqualified battery cells from flowing out to the client and ensuring the factory quality of the battery cells.

[0038] 3. Through the variable-spacing feeding device, the present invention can increase the number of transported battery cells, convey at least two battery cells in parallel to the battery cell feeding station, thereby realizing the parallel feeding of multiple battery cells, so that the transfer device can batch-grab and transfer multiple battery cells, effectively improving the overall production efficiency of the battery cells. Moreover, the variable-spacing feeding device can also play a role in variable-spacing, making the spacing between adjacent battery cells at the battery cell feeding station the same as the spacing of the adjacent battery cell accommodating grooves on the middle cover, so that the transfer device can grab at least two battery cells at one time and place them on the middle cover, further improving the overall production efficiency of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a perspective view of the battery cell packing machine in the embodiment;

[0040] Figure 2 It is a schematic structural diagram of the first conveyor line, the second conveyor line, the transportation mechanism, the transportation trolley, the first transfer mechanism and the second transfer mechanism in the embodiment;

[0041] Figure 3 For Figure 2 the enlarged schematic view at A in

[0042] Figure 4 For Figure 2 the enlarged schematic view at B in

[0043] Figure 5 It is a perspective view of the transportation trolley in the embodiment;

[0044] Figure 6 It is a schematic structural diagram of the third conveyor line, the transfer conveyor line and the transfer driving mechanism in the embodiment;

[0045] Figure 7 It is a schematic structural diagram of the code scanning and material separation device, the first conveyor line and the NG conveyor line in the embodiment;

[0046] Figure 8 For Figure 7 the enlarged schematic view at C in

[0047] Figure 9 It is a schematic structural diagram of the middle cover feeding device, the transfer device and the blanking conveyor line in the embodiment;

[0048] Figure 10 For Figure 9 the enlarged schematic view at D in

[0049] Reference Numerals in the Drawings:

[0050] 100, frame; 101, battery cell feeding station; 102, middle cover feeding station;

[0051] 200. Scanning and sorting device; 201. Feeding conveyor line; 202. Battery cell scanning mechanism; 203. Sorting conveyor line; 204. Sorting drive mechanism; 2041. Rotating mechanism; 2042. Linear displacement mechanism; 205. In-place sensor

[0052] 300. Variable pitch feeding device; 301. First conveyor line; 302. Second conveyor line; 303. Transportation mechanism; 3031. Conveyor track; 3032. Drive assembly; 304. Transportation trolley; 3041. Storage space; 305. First transfer mechanism; 3051. Two-axis moving mechanism; 3052. Battery cell clamp; 306. Second transfer mechanism; 307. Positioning structure; 3071. Fixed rod; 3072. Movable connecting rod; 30721. First rod part; 30722. Second rod part; 30723. Roller; 3073. Elastic member; 3074. Pusher plate; 308. Third conveyor line; 309. Transfer conveyor line; 310. Transfer drive mechanism; 311. Conveyor channel; 312. Variable pitch mechanism; 313. Secondary scanning mechanism

[0053] 400. NG conveyor line

[0054] 500. Middle cover feeding device; 501. Middle cover conveyor line; 502. Middle cover lifting mechanism; 503. Middle cover clamping mechanism

[0055] 600. Transfer device; 601. Manipulator; 602. Clamp

[0056] 700. Discharging conveyor line; 800. Secondary defective conveyor line

[0057] 900. Material blocking mechanism; 901. Material blocking plate; 902. Material blocking drive member

[0058] a. Battery cell; b. Middle cover; c. Battery cell accommodation groove Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0060] The present invention provides a battery cell packing machine for solving the problems of how to improve the production efficiency and quality of battery cell a.

[0061] Refer to Figure 1 as shown Figure 1It is a three-dimensional diagram of the battery cell packaging machine in the embodiment, which includes a frame 100, a code scanning and material distribution device 200, a variable distance feeding device 300, an NG conveyor line 400, a middle cover feeding device 500, a transfer device 600 and a discharge conveyor line 700.

[0062] The frame 100 is provided with a battery cell loading station 101 and a middle cover loading station 102 .

[0063] The code scanning and material separation device 200 is installed on the frame 100, and the code scanning and material separation device 200 is used to convey the battery cell a and scan the code of the battery cell a.

[0064] Combination Figure 2 and Figure 5 As shown, Figure 2 It is a structural schematic diagram of the first conveyor line, the second conveyor line, the transport mechanism, the transport trolley, the first transfer mechanism and the second transfer mechanism in the embodiment, Figure 5 It is a three-dimensional diagram of the transport trolley in the embodiment. The variable-distance loading device 300 includes a first conveyor line 301, a second conveyor line 302, a transport mechanism 303, a transport trolley 304, a first transfer mechanism 305 and a second transfer mechanism 306 installed on the frame 100. The first conveyor line 301 is used to receive and transport the scanned qualified battery cell a output by the scan code distribution device 200. There are at least two transport trolleys 304, and the transport trolley 304 has a storage space 3041 for storing a single battery cell a. The transport mechanism 303 is connected to at least two transport trolleys 304 in a transmission manner, and the transport mechanism 303 is used to drive at least two transport trolleys 304 to reciprocate between the first conveyor line 301 and the second conveyor line 302, so that the transport trolley 304 alternately docks with the first conveyor line 301 and the second conveyor line 302. The first transfer mechanism 305 is used to grab the battery cell a on the first conveyor line 301 and transfer it to the docking storage space 3041. The second transfer mechanism 306 is used to grab the battery cell a in the storage space 3041 and transfer it to the docked second conveyor line 302. There are at least two second conveyor lines 302 arranged in parallel, and the at least two second conveyor lines 302 are used to convey at least two battery cells a in parallel to the battery cell loading station 101. The spacing between adjacent battery cells a on the battery cell loading station 101 is the same as the spacing between adjacent battery cell accommodating grooves c on the middle cover b.

[0065] The NG conveyor line 400 is installed on the frame 100 , and is used to receive and convey the scanned unqualified battery cells a output by the scanned code sorting device 200 .

[0066] The middle cover loading device 500 is installed on the frame 100 and is used to transport the middle cover b to the middle cover loading station 102 .

[0067] Both the transfer device 600 and the blanking conveyor line 700 are installed on the frame 100. The transfer device 600 is used to grab the middle cover b at the middle cover loading station 102 and transfer it to the blanking conveyor line 700, and grab at least two battery cells a at the battery cell loading station 101 and transfer them to at least two battery cell accommodation slots c of the middle cover b on the blanking conveyor line 700.

[0068] When the battery cell packing machine with the above technical solution is in use, first, the battery cells a after production are input into the code scanning and sorting device 200. The code scanning and sorting device 200 conveys the battery cells a and scans the battery cells a; after the code scanning and sorting device 200 scans the codes, the qualified battery cells a after code scanning are sent to the first conveyor line 301. At this time, the starting positions of the respective transport trolleys 304 are docked with the first conveyor line 301; then, the first transfer mechanism 305 transfers the battery cells a at the output end of the first conveyor line 301 into the storage spaces 3041 of the respective transport trolleys 304. Subsequently, the transport mechanism 303 drives the respective transport trolleys 304 to be docked with the respective second conveyor lines 302, and the second transfer mechanism 306 transfers the battery cells a in the respective storage spaces 3041 to the respective second conveyor lines 302. At least two second conveyor lines 302 convey at least two battery cells a in parallel to the battery cell loading station 101, so that the distance between adjacent battery cells a at the battery cell loading station 101 is the same as the distance between adjacent battery cell accommodation slots c of the middle cover b; at the same time, the middle cover loading device 500 conveys the middle cover b to the middle cover loading station 102, and the transfer device 600 grabs the middle cover b at the middle cover loading station 102 and transfers it to the blanking conveyor line 700; finally, the transfer device 600 grabs at least two battery cells a at the battery cell loading station 101 and transfers them to at least two battery cell accommodation slots c of the middle cover b on the blanking conveyor line 700. Then, the feeding and transfer operations of the battery cells a are repeated until the battery cell accommodation slots c of the middle cover b are filled with the battery cells a. Then, the transfer device 600 grabs the middle cover b at the middle cover loading station 102 again and stacks it on the above-mentioned middle cover b filled with the battery cells a. In this way, it is continuously repeated. After stacking a plurality of middle cover bs filled with the battery cells a to a specified height, they are output through the blanking conveyor line 700 to complete the packing work of the battery cells a.

[0069] It can be seen from the above use process that compared with the prior art, the present invention has the following advantages:

[0070] 1) From the code scanning, transportation, placement to stacking of the battery cells a, the whole process is automatically completed by the equipment, replacing manual labor, significantly improving the production efficiency of the battery cells a, while reducing manual intervention and reducing the occurrence of errors and damages, thereby comprehensively improving the quality and market competitiveness of the battery cells a;

[0071] 2) The code scanning and sorting device 200 can perform code scanning and classification transportation on the battery cells a, avoiding unqualified battery cells a from flowing out to the client side and ensuring the ex-factory quality of the battery cells a;

[0072] 3) The variable-spacing feeding device 300 can increase the number of battery cells a conveyed, and convey at least two battery cells a in parallel to the battery cell feeding station 101, thereby realizing the parallel feeding of multiple battery cells a, so that the transfer device 600 can batch-grab and transfer multiple battery cells a, effectively improving the overall production efficiency of the battery cells a; moreover, the variable-spacing feeding device 300 can also play a role in variable-spacing, making the distance between adjacent battery cells a at the battery cell feeding station 101 the same as the distance between adjacent battery cell accommodating grooves c of the middle cover b, so that the transfer device 600 can grab at least two battery cells a at one time and place them on the middle cover b, further improving the overall production efficiency of the battery cells a.

[0073] The above-mentioned first conveyor line 301, second conveyor line 302, NG conveyor line 400, and discharging conveyor line 700 can use existing conveyor mechanisms such as belt conveyor mechanisms or roller conveyor mechanisms. The above-mentioned transfer device 600 can be formed by combining an existing manipulator 601 and an existing fixture 602 (such as the battery cell fixture of CATL), which can not only grab and transfer multiple battery cells a at one time, but also grab and transfer the middle cover b.

[0074] As Figure 3 shown, Figure 3 is Figure 2 an enlarged schematic view of area A in the figure. The above-mentioned first transfer mechanism 305 and second transfer mechanism 306 can be formed by combining an existing two-axis moving mechanism 3051 and an existing battery cell fixture 3052.

[0075] Refer to Figure 4 and Figure 5 shown, Figure 4 is Figure 2An enlarged schematic view of part B. On the basis of the above embodiment, a positioning structure 307 for positioning the battery cell a in the storage space 3041 is provided on the transport trolley 304. The positioning structure 307 includes a fixed rod 3071, a movable connecting rod 3072, an elastic member 3073, and a push plate 3074. The fixed rod 3071 is fixed in the storage space 3041 by screwing or welding. The movable connecting rod 3072 includes a first rod portion 30721 and a second rod portion 30722 that are integrally connected. The integral connection of the first rod portion 30721 and the second rod portion 30722 is hinged to the transport trolley 304. The push plate 3074 is slidably connected to the transport trolley 304, and both ends of the elastic member 3073 are connected to the push plate 3074 and the transport trolley 304 respectively. The elastic member 3073 has an elastic force for driving the push plate 3074 to slide towards the second rod portion 30722, so as to drive the first rod portion 30721 to rotate towards the fixed rod 3071, so that the first rod portion 30721 and the fixed rod 3071 respectively abut against both sides of the battery cell a in the storage space 3041. It can be seen that the push plate 3074 can drive the movable connecting rod 3072 to rotate under the elastic force of the elastic member 3073, and cooperate with the fixed rod 3071 to automatically position the battery cell a in the storage space 3041.

[0076] The above elastic member 3073 can use an existing compression spring or tension spring.

[0077] Refer to Figure 5 As shown in the figure, on the basis of the above embodiment, a roller 30723 is rotatably connected to the end of the first rod portion 30721, and the roller 30723 is used to abut against the battery cell a in the storage space 3041. In this way, the first rod portion 30721 contacts the battery cell a through the roller 30723. The roller 30723 can not only reduce the friction with the outer surface of the battery cell a, facilitate the smooth insertion or extraction of the battery cell a into or out of the storage space 3041, but also effectively avoid damage such as pressing or scratching to the outer surface of the battery cell a.

[0078] Refer to Figure 2 As shown in the figure, in an embodiment of the transport mechanism 303, the transport mechanism 303 includes a driving component 3032 and a conveying track 3031. The driving component 3032 and the conveying track 3031 are both installed on the frame 100. The conveying track 3031 is in a closed loop shape, and at least two transport trolleys 304 are connected to the conveying track 3031 and connected to the output end of the driving component 3032. The driving component 3032 is used to drive at least two transport trolleys 304 to travel along the conveying track 3031. In this way, the driving component 3032 drives the transport trolley 304 to travel along the closed-loop conveying track 3031, and the transport trolley 304 can be alternately docked with the first conveying line 301 and the second conveying line 302.

[0079] The above-mentioned driving assembly 3032 can drive the transport trolley 304 to travel along the conveying track 3031 by using existing driving mechanisms such as a motor-conveyor chain or a motor-conveyor belt.

[0080] Refer to Figure 6 as shown Figure 6 Shown is a schematic structural diagram of the third conveying line, the transfer conveying line and the transfer driving mechanism in the embodiment. On the basis of the implementation manner of the above-mentioned variable pitch loading device 300, the variable pitch loading device 300 further includes a third conveying line 308, a transfer conveying line 309 and a transfer driving mechanism 310. A plurality of conveying channels 311 for continuously conveying the battery cells a are arranged in parallel on each of the first conveying line 301, the second conveying line 302 and the third conveying line 308. And the number of the conveying channels 311 on the first conveying line 301, the second conveying line 302 and the third conveying line 308 is set to increase progressively. The transfer conveying line 309 is located between the second conveying line 302 and the third conveying line 308. The transfer driving mechanism 310 is installed on the frame 100 and is in transmission connection with the transfer conveying line 309. The transfer driving mechanism 310 is used to drive the transfer conveying line 309 to be alternately docked with the second conveying line 302 and the third conveying line 308, so as to convey the battery cells a on the second conveying line 302 to the third conveying line 308. In this way, when the transfer driving mechanism 310 drives the transfer conveying line 309 to be docked with the second conveying line 302, the second conveying line 302 and the transfer conveying line 309 cooperate to temporarily store the battery cells a on the second conveying line 302 in the transfer conveying line 309. Then, the transfer driving mechanism 310 drives the transfer conveying line 309 to be docked with the third conveying line 308, and the transfer conveying line 309 and the third conveying line 308 cooperate to convey the battery cells a on the transfer conveying line 309 to the third conveying line 308. It can be seen that the battery cell packing machine can gradually increase the number of battery cells a conveyed in parallel through the second conveying line 302 and the third conveying line 308, thereby reducing the occupied space of the battery cell packing machine. Since the conveying channels 311 of the second conveying line 302 and the third conveying line 308 are not equal and cannot be docked and conveyed one by one, the present invention can realize transferring the battery cells a on the second conveying line 302 to the third conveying line 308 with more conveying channels 311 through the transfer conveying line 309 and the transfer driving mechanism 310.

[0081] The above-mentioned third conveying line 308 can use existing conveying mechanisms such as a belt conveying mechanism or a roller conveying mechanism.

[0082] Refer to Figure 6As shown, the variable-spacing feeding device 300 further includes a variable-spacing mechanism 312 for adjusting the spacing between adjacent battery cells a at the battery cell feeding station 101 to be the same as the spacing between the adjacent battery cell accommodating grooves c of the middle cover b. The variable-spacing mechanism 312 can use an existing battery cell variable-spacing mechanism. If the variable-spacing feeding device 300 further includes a third conveying line 308, the variable-spacing mechanism 312 is installed at the output end of the third conveying line 308. If the variable-spacing feeding device 300 does not include the third conveying line 308, the variable-spacing mechanism 312 is installed at the output end of the second conveying line 302.

[0083] The number of battery cell clamps 3052 of the above-mentioned first transfer mechanism 305 is the same as the number of conveying channels 311 of the first conveying line 301 and they correspond one by one. The number of battery cell clamps 3052 of the above-mentioned second transfer mechanism 306 is the same as the number of conveying channels 311 of the second conveying line 302 and they correspond one by one. In this way, the first transfer mechanism 305 can, through the cooperation of the two-axis moving mechanism 3051 and several battery cell clamps 3052, grab all the battery cells a at the output end of the conveying channels 311 of the first conveying line 301 at one time and transfer them to the docked transport trolley 304. The second transfer mechanism 306 can grab the battery cells a on the transport trolley 304 docked with all the conveying channels 311 of the second conveying line 302 at one time and transfer them to all the second conveying lines 302, further improving the production efficiency of the battery cells a.

[0084] Refer to Figure 1 As shown, on the basis of the above-mentioned embodiment, the variable-spacing feeding device 300 further includes a secondary code scanning mechanism 313. The secondary code scanning mechanism 313 is installed above the third conveying line 308 and is used for secondary scanning of the two-dimensional code on the battery cell a. The battery cell packing machine further includes a secondary defective conveying line 800. The secondary defective conveying line 800 is installed on the frame 100. The transfer device 600 is also used for grabbing the unqualified battery cells a at the battery cell feeding station 101 and transferring them to the secondary defective conveying line 800. In this way, the present invention can perform a second scan on the battery cell a through the secondary code scanning mechanism 313 to further ensure the accuracy and consistency of code scanning, reduce the occurrence of errors. After code scanning, the unqualified battery cells a can be conveyed to the secondary defective conveying line 800 through the transfer device 600 for the staff to handle.

[0085] The above-mentioned secondary code scanning mechanism 313 can use an existing code scanner. The above-mentioned secondary defective conveying line 800 can use an existing conveying mechanism such as a belt conveying mechanism or a roller conveying mechanism.

[0086] Refer to Figure 1 、 Figure 7 and Figure 8 As shown, Figure 7 It is a schematic structural diagram of the code scanning and material separation device, the first conveying line and the NG conveying line in the embodiment. Figure 8 For Figure 7An enlarged schematic diagram at position C. In an embodiment of the code scanning and sorting device 200, the code scanning and sorting device 200 includes a feeding conveyor line 201, a battery cell code scanning mechanism 202, a sorting conveyor line 203, and a sorting driving mechanism 204. The feeding conveyor line 201 is installed on the frame 100 and is used to convey the battery cell a. The battery cell code scanning mechanism 202 is installed above the output end of the feeding conveyor line 201 and is used to scan the two-dimensional code on the battery cell a. The sorting driving mechanism 204 is installed on the frame 100 and is in transmission connection with the sorting conveyor line 203. The sorting driving mechanism 204 is used to drive the sorting conveyor line 203 to be docked with the feeding conveyor line 201, the variable pitch loading device 300, or the NG conveyor line 400, so as to convey the battery cell a with qualified code scanning on the feeding conveyor line 201 to the variable pitch loading device 300, or convey the battery cell a with unqualified code scanning on the feeding conveyor line 201 to the NG conveyor line 400. In this way, the code scanning and sorting device 200 can realize the code scanning and classified conveying of the battery cell a on the feeding conveyor line 201 through the cooperation of the battery cell code scanning mechanism 202, the sorting conveyor line 203, and the sorting driving mechanism 204, avoid the unqualified battery cell a from flowing out to the client, thus ensuring the ex-factory quality of the battery cell a, and can also facilitate the staff to centrally process the unqualified battery cell a.

[0087] A plurality of conveying channels 311 for continuously conveying the battery cell a can also be arranged in parallel on the above-mentioned feeding conveyor line 201, sorting conveyor line 203, and NG conveyor line 400, and the number of conveying channels 311 of the feeding conveyor line 201, sorting conveyor line 203, NG conveyor line 400, and the first conveyor line 301 is the same and corresponds one by one. In this way, the present invention can convey the battery cell a in batches and further improve the production efficiency of the battery cell a. The above-mentioned feeding conveyor line 201 and sorting conveyor line 203 can both use existing conveying mechanisms such as belt conveying mechanisms or roller conveying mechanisms. The above-mentioned battery cell code scanning mechanism 202 can use an existing code scanner.

[0088] Refer to Figure 7 As shown, in an embodiment of the sorting driving mechanism 204, the sorting driving mechanism 204 includes a rotating mechanism 2041 and a linear displacement mechanism 2042. The rotating mechanism 2041 is installed on the frame 100, the output end of the rotating mechanism 2041 is in transmission connection with the linear displacement mechanism 2042, and the output end of the linear displacement mechanism 2042 is in transmission connection with the sorting conveyor line 203. The rotating mechanism 2041 is used to drive the linear displacement mechanism 2042 and the sorting conveyor line 203 to rotate, so that the sorting conveyor line 203 faces the feeding conveyor line 201, the variable pitch loading device 300, or the NG conveyor line 400. The linear displacement mechanism 2042 is used to drive the sorting conveyor line 203 to move towards the corresponding feeding conveyor line 201, variable pitch loading device 300, or NG conveyor line 400, so that the sorting conveyor line 203 can be docked with the feeding conveyor line 201, the variable pitch loading device 300, or the NG conveyor line 400.

[0089] The above-mentioned rotating mechanism 2041 can use existing rotating drive mechanisms such as rotating motors, and the above-mentioned linear displacement mechanism 2042 can use existing linear displacement drive mechanisms such as linear motor linear modules or ball screw linear modules.

[0090] Refer to Figure 8 As shown, on the basis of the above-mentioned embodiment, a position sensor 205 is further installed at the output end of the feeding conveyor line 201. The position sensor 205 is used to sense whether the battery cell a reaches the output end of the feeding conveyor line 201. In this way, when the code scanning and material distribution device 200 is in use, after the position sensor 205 senses the battery cell a, the battery cell code scanning mechanism 202 is started to scan the code of the battery cell a. This can effectively prevent the situation where the battery cell code scanning mechanism 202 starts scanning the code when the battery cell a is not in place, resulting in misjudgment of the battery cell a as unqualified in code scanning, further ensuring the accuracy and consistency of code scanning and reducing the occurrence of errors.

[0091] The above-mentioned position sensor 205 can use existing devices such as infrared sensors or position switches, and the number of the position sensors 205 is the same as the number of the conveying channels 311 of the feeding conveyor line 201 and corresponds one by one. In this way, the position sensor 205 can sense whether the battery cell a in the corresponding conveying channel 311 of the feeding conveyor line 201 is in place.

[0092] Refer to Figure 1 、 Figure 9 and Figure 10 shown, Figure 9 are schematic structural diagrams of the middle cover loading device, transfer device and unloading conveyor line in the embodiment, Figure 10 is Figure 9 an enlarged schematic diagram at D in. In one implementation manner of the middle cover loading device 500, the middle cover loading device 500 includes a middle cover conveyor line 501, a middle cover lifting mechanism 502 and a middle cover clamping mechanism 503. The middle cover conveyor line 501 is installed on the frame 100 and is used to convey the middle covers b one by one and / or in stacks to the middle cover lifting mechanism 502. The middle cover clamping mechanism 503 is provided at the output end of the middle cover lifting mechanism 502 by means of screwing or welding, etc. The middle cover clamping mechanism 503 is used to clamp or release the middle cover b. The middle cover lifting mechanism 502 is used to drive the middle cover clamping mechanism 503 to move up and down, so as to drive the middle cover b to move up and down one by one or in stacks, so as to convey the middle cover b or the topmost middle cover b to the middle cover loading station 102. In this way, the cooperation of the middle cover conveyor line 501, the middle cover lifting mechanism 502 and the middle cover clamping mechanism 503 can realize automatic loading of the middle cover b, thereby improving the overall production efficiency of the battery cell a.

[0093] The above middle cover conveyor line 501 can use existing conveyor mechanisms such as belt conveyor mechanisms or roller conveyor mechanisms. The above middle cover lifting mechanism 502 can use existing linear displacement driving mechanisms such as linear motor linear modules or ball screw linear modules. The above middle cover clamping mechanism 503 can use at least two telescopic cylinders to cooperate in clamping the middle cover b. In this embodiment, two sets of middle cover lifting mechanisms 502 are symmetrically provided, and at least two telescopic cylinders are respectively symmetrically provided on the output ends of the two sets of middle cover lifting mechanisms 502.

[0094] At the output ends of the above-mentioned feeding conveyor line 201, the first conveyor line 301, the second conveyor line 302, the third conveyor line 308, the sorting conveyor line 203 and the middle cover conveyor line 501, a material blocking mechanism 900 is installed to prevent the battery cell a from flowing out directly.

[0095] Refer to Figure 8 As shown, the material blocking mechanism 900 includes a material blocking plate 901 and a material blocking driving member 902. The material blocking driving member 902 is provided on the frame 100 and is in transmission connection with the material blocking plate 901. The material blocking driving member 902 is used to drive the material blocking plate 901 to move up and down towards or away from the feeding conveyor line 201, the first discharging conveyor line or the sorting conveyor line 203, so as to close or open the output end of the feeding conveyor line 201, the first discharging conveyor line or the sorting conveyor line 203. Among them, each conveying channel 311 of the sorting conveyor line 203 requires a separate material blocking driving member 902 and a material blocking plate 901 to control the switch, so as to prevent the battery cells a that pass the code scanning and those that fail the code scanning from being uniformly input into the same conveyor line, resulting in the unqualified battery cells a being packed and flowing out. And all the conveying channels 311 of other conveyor lines can be synchronously controlled by one or two material blocking driving members 902 to drive the material blocking plate 901, so that the battery cells a at the output ends of all the conveying channels 311 are output together, saving the driving cost.

[0096] The above-mentioned material blocking driving member 902 can use existing telescopic driving mechanisms such as telescopic cylinders or telescopic electric rods.

[0097] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery packing machine, characterized in that: include: A frame, wherein a cell loading station and a middle cover loading station are provided on the frame; A code scanning and material distributing device is arranged on the frame, and is used to convey the battery cells and scan the codes of the battery cells; A variable-distance loading device, comprising a first conveyor line, a second conveyor line, a transport mechanism, a transport trolley, a first transfer mechanism and a second transfer mechanism arranged on the frame, wherein the first conveyor line is used to receive and transport the scanned qualified battery cells output by the scan code dispensing device, at least two transport trolleys are provided, and a storage space for storing a single battery cell is provided on the transport trolley, the transport mechanism is transmission-connected to at least two transport trolleys, the transport mechanism is used to drive at least two transport trolleys to reciprocate between the first conveyor line and the second conveyor line, so that the transport trolleys alternately dock with the first conveyor line and the second conveyor line, the first transfer mechanism is used to grab the battery cells on the first conveyor line and transfer them to the docked storage space, the second transfer mechanism is used to grab the battery cells in the storage space and transfer them to the docked second conveyor line, at least two second conveyor lines are arranged in parallel, and at least two second conveyor lines are used to transport at least two battery cells in parallel to the battery cell loading station, and the spacing between adjacent battery cells on the battery cell loading station is the same as the spacing between adjacent battery cell accommodating grooves of the middle cover; An NG conveyor line is provided on the frame, and is used to receive and convey the unqualified cells output by the scanning and dispensing device; A middle cover feeding device, which is arranged on the frame and is used to convey the middle cover to the middle cover feeding station; The transfer device and the unloading conveyor line are both arranged on the frame. The transfer device is used to grab the middle cover of the middle cover loading station and transfer it to the unloading conveyor line, and to grab at least two battery cells of the battery cell loading station and transfer them to at least two battery cell accommodating grooves of the middle cover of the unloading conveyor line.

2. The battery packing machine according to claim 1, characterized in that: The transport trolley is provided with a positioning structure for positioning the battery cell in the storage space, and the positioning structure includes: A fixing rod, fixedly arranged in the storage space; A movable connecting rod, comprising a first rod portion and a second rod portion connected as one body, wherein an integral connection between the first rod portion and the second rod portion is hinged on the transport trolley; An elastic member and a push plate, wherein the push plate is slidably arranged on the transport trolley, and both ends of the elastic member are respectively connected to the push plate and the transport trolley, and the elastic member has an elastic force for driving the push plate to slide toward the second rod portion, so as to drive the first rod portion to rotate toward the fixed rod, so that the first rod portion and the fixed rod are respectively tightly abutted against two sides of the battery cell in the storage space.

3. The battery packing machine according to claim 2, characterized in that: The end of the first rod portion is rotatably connected to a roller for abutting against the battery core in the storage space.

4. The battery packing machine according to claim 1, characterized in that: The transport mechanism includes a driving assembly and a conveying track arranged on the frame, the conveying track is in a closed loop, at least two of the transport carts are connected to the conveying track and connected to the output end of the driving assembly, and the driving assembly is used to drive at least two of the transport carts to travel along the conveying track.

5. The battery packing machine according to claim 1, characterized in that: The variable distance feeding device also includes: A third conveyor line, wherein the first conveyor line, the second conveyor line and the third conveyor line are all provided with a plurality of conveyor channels for continuously conveying the battery cells in parallel, and the number of conveyor channels on the first conveyor line, the second conveyor line and the third conveyor line is arranged in increasing order; A transfer conveyor line and a transfer drive mechanism, wherein the transfer conveyor line is arranged between the second conveyor line and the third conveyor line, the transfer drive mechanism is arranged on the frame and is transmission-connected with the transfer conveyor line, and the transfer drive mechanism is used to drive the transfer conveyor line to alternately dock with the second conveyor line and the third conveyor line to transport the battery cells on the second conveyor line to the third conveyor line.

6. The battery packing machine according to claim 5, characterized in that: The variable-distance feeding device further includes a secondary code scanning mechanism, which is disposed above the third conveying line and is used for secondary scanning of the two-dimensional code on the battery cell; The battery cell packaging machine also includes a secondary defective conveying line, and the transfer device is also used to grab the unqualified battery cells on the battery cell loading station and transfer them to the secondary defective conveying line.

7. The battery packing machine according to any one of claims 1 to 6, characterized in that: The code scanning and material dispensing device comprises: A feed conveyor line, arranged on the frame and used for conveying the battery cells; A battery cell code scanning mechanism, disposed above the output end of the feed conveyor line, for scanning the QR code on the battery cell; A classification conveyor line and a classification drive mechanism, wherein the classification drive mechanism is arranged on the frame and is transmission-connected to the classification conveyor line, and the classification drive mechanism is used to drive the classification conveyor line to dock with the feeding conveyor line, the variable-distance loading device or the NG conveyor line, so as to convey the battery cells that have passed the code scanning on the feeding conveyor line to the variable-distance loading device, or to convey the battery cells that have failed the code scanning on the feeding conveyor line to the NG conveyor line.

8. The battery packing machine according to claim 7, characterized in that: The output end of the feed conveyor line is also provided with an in-position sensing member for sensing whether the battery cell has arrived at the output end of the feed conveyor line.

9. The battery packing machine according to any one of claims 1, 2, 3, 4, 5, 6 and 8, characterized in that: The middle cover feeding device comprises: A middle cover conveying line is arranged on the frame and is used to convey the middle covers one by one and / or stack by stack to the middle cover lifting mechanism; A middle cover lifting mechanism and a middle cover clamping mechanism, wherein the middle cover clamping mechanism is arranged on the output end of the middle cover lifting mechanism and is used to clamp or release the middle cover, and the middle cover lifting mechanism is used to drive the middle cover clamping mechanism to lift and lower, so as to drive the middle covers to lift and lower one by one or stack by stack, thereby conveying the middle cover or the uppermost middle cover to the middle cover loading station.

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