Logistics conveying device of lithium battery roll core assembly line

Abstract

The application discloses a logistics conveying device of a lithium battery roll core assembling line, which comprises a roll core feeding mechanism, a roll core arrangement mechanism and a line body assembly, the output end of the roll core feeding mechanism is connected with the input end of the line body assembly, each group of roll core arrangement assemblies in the roll core arrangement mechanism is arranged on the same side, each group of conveying line bodies in the line body assembly is arranged in correspondence with each group of roll core arrangement assemblies, and each group of conveying line bodies is provided with an arrangement elevator at both ends; the logistics line body in the logistics conveying device adopts a multilayer structure, so that the buffer capacity of the material can be effectively improved; when the equipment is stopped due to a fault, the application can consume the buffered material by using the same equipment, so that the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of lithium battery manufacturing technology, and in particular to a logistics conveying device for a lithium battery core assembly line. Background Technology

[0002] The traditional lithium battery core assembly line operates as follows: Type A winding machines and Type B winding machines combine the produced Type A and Type B cores and transport them to the cell assembly section (hot press-laser welding machine). The equipment in the cell assembly section is arranged in a mirror image, which brings difficulties to the design, manufacturing, and maintenance of the equipment. The logistics line has a double-layer structure and lacks sufficient buffer capacity. When equipment fails and stops, the entire line's capacity can easily drop to zero, greatly restricting capacity release and utilization rate improvement, and has become a bottleneck in the entire lithium battery production and manufacturing process. Summary of the Invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a logistics conveying device for a lithium battery core assembly line, which can effectively improve the material buffering capacity, use the same equipment to consume the buffered materials, and improve the product production utilization rate.

[0004] The present invention proposes a logistics conveying device for a lithium battery core assembly line, comprising a core feeding mechanism, a core sorting mechanism, and a line assembly. The output end of the core feeding mechanism is connected to the input end of the line assembly. Each set of core sorting components in the core sorting mechanism is arranged on the same side. Each set of conveyor lines in the line assembly is arranged corresponding to each set of core sorting components. Each set of conveyor lines is equipped with a sorting and lifting machine at both ends.

[0005] Furthermore, the core finishing mechanism includes a first hot press, a second hot press, a first X-ray inspection machine, a second X-ray inspection machine, a first pre-welding machine, a second pre-welding machine, a first butterfly welder, a second butterfly welder, a first laser welder, and a second laser welder arranged sequentially. The first hot press and the second hot press form a first set of core finishing components, the first X-ray inspection machine and the second X-ray inspection machine form a second set of core finishing components, the first pre-welding machine and the second pre-welding machine form a third set of core finishing components, the first butterfly welder and the second butterfly welder form a fourth set of core finishing components, and the first laser welder and the second laser welder form a fifth set of core finishing components. The two structures in each set of core finishing components are redundant backups of each other.

[0006] Furthermore, each core winding assembly has two structures equipped with a material handling gripper and a material discharging gripper.

[0007] Furthermore, the line assembly is a segmented logistics line, with each segment corresponding to a first hot press, a second hot press, a first X-ray inspection machine, a second X-ray inspection machine, a first pre-welding machine, a second pre-welding machine, a first butterfly welder, a second butterfly welder, a first laser welder, and a second laser welder. The segmented logistics line constitutes a conveyor line, and a sorting and lifting machine is set at each segment, with adjacent segments sharing a single sorting and lifting machine.

[0008] Furthermore, the production line assembly includes four conveyor lines: 1#A material conveyor line, 2#A material conveyor line, 1#B material conveyor line, and 2#B material conveyor line. These four conveyor lines are arranged in parallel and pass sequentially beside the first group of core winding assembly, the second group of core winding assembly, the third group of core winding assembly, and the fourth group of core winding assembly. The first group of core winding assembly, the second group of core winding assembly, and the third group of core winding assembly all use corresponding picking and unloading claws to pick up and unload materials from the 1#A material conveyor line, the 2#A material conveyor line, the 1#B material conveyor line, and the 2#B material conveyor line. The fourth group of core winding assembly uses picking claws to pick up materials from the 1#A material conveyor line, the 2#A material conveyor line, the 1#B material conveyor line, and the 2#B material conveyor line.

[0009] Furthermore, the line assembly also includes a #1 semi-finished product conveyor line and a #2 semi-finished product conveyor line. The #1 and #2 semi-finished product conveyor lines are arranged in parallel and pass next to the fourth and fifth sets of core winding assembly components in sequence. The fifth set of core winding assembly components picks up and releases materials on the #1 and #2 semi-finished product conveyor lines using the provided pick-up and release grippers. The fourth set of core winding assembly components releases materials on the #1 and #2 semi-finished product conveyor lines using the provided release grippers.

[0010] Furthermore, the line assembly also includes a #1 finished product conveyor line and a #2 finished product conveyor line, with the input end of the #1 finished product conveyor line connected to the output end of the #1 semi-finished product conveyor line, and the input end of the #2 finished product conveyor line connected to the output end of the #2 semi-finished product conveyor line.

[0011] Furthermore, the number of layers of the 1#A material conveying line, 2#A material conveying line, 1#B material conveying line, 2#B material conveying line, 1# semi-finished product conveying line, 2# semi-finished product conveying line, 1# finished product conveying line and 2# finished product conveying line are all greater than or equal to 3 layers.

[0012] Furthermore, the core feeding mechanism includes an A-type winding machine, a B-type winding machine, an A-type core conveyor line, a B-type core conveyor line, and a core feeding assembly. One end of the A-type core conveyor line is connected to the A-type winding machine, and the other end is connected to the input end of the core feeding assembly. One end of the B-type core conveyor line is connected to the A-type winding machine, and the other end is connected to the input end of the core feeding assembly. The output end of the core feeding assembly is connected to the input end of the line assembly.

[0013] Furthermore, two sets of core feeding assemblies are set up, each set of core feeding assemblies is used to feed A cores output from the A-type winding machine and B cores output from the B-type winding machine.

[0014] The advantages of the logistics conveying device for a lithium battery core assembly line provided by this invention are as follows: Each core sorting assembly group has two identical machines with completely identical structures, avoiding the design and manufacturing difficulties caused by traditional mirror-structured designs. Components are interchangeable, facilitating later equipment maintenance. The two identical structures are located on the same side and serve as redundant backups for each other, both capable of performing the same operations on the battery cells. The logistics line adopts a multi-layer structure, effectively improving material buffering capacity. When equipment stops due to malfunction, this invention can utilize the same equipment to consume the buffered materials, improving product production utilization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 A logistics and conveying layout diagram for a traditional lithium battery core assembly line;

[0017] Figure 3 This is a logistics conveying layout diagram of the unloading section of the winding machine of the present invention;

[0018] Figure 4 This is a diagram showing the logistics conveying layout at the hot presses (first hot press and second hot press) of the present invention;

[0019] Figure 5 This is a diagram showing the logistics conveying layout at the X-RAY inspection machine (first X-RAY inspection machine and second X-RAY inspection machine) of the present invention;

[0020] Figure 6 This is a logistics conveying layout diagram of the butterfly welding machine (first butterfly welding machine and second butterfly welding machine) of the present invention;

[0021] Figure 7 This is a logistics conveying layout diagram of the laser welding machines (first laser welding machine and second laser welding machine) of the present invention;

[0022] Figure 8 This is a schematic diagram of the conveyor line of the present invention;

[0023] Figure 9 This is a schematic diagram showing the material being conveyed to the feeding port of the second hot press when the first hot press stops.

[0024] Figure 10This is a schematic diagram showing that when the first hot press continues to be shut down in this invention, the material is buffered in the second and third layers of the logistics line;

[0025] Figure 11 This is a schematic diagram showing that when the first hot press continues to be shut down in this invention, after the buffer is full, the second hot press begins to consume the material.

[0026] Figure 12 This is a schematic diagram of the material consumption flow pattern one after the first hot press of the present invention returns to normal.

[0027] Figure 13 This is a schematic diagram of the material consumption flow mode two after the first hot press of the present invention returns to normal;

[0028] Figure 14 This is a schematic diagram of the initial state of the material when the second hot press of the present invention is shut down;

[0029] Figure 15 This is a schematic diagram showing that when the second hot press of the present invention continues to be shut down, the material is buffered to the second layer of the logistics line;

[0030] Figure 16 This is a schematic diagram showing that when the second hot press of the present invention continues to be shut down, the material is buffered to the second and third layers of the material flow line until the material is full;

[0031] Figure 17 This is a schematic diagram showing that when the second hot press continues to be shut down, the material is consumed by the first hot press.

[0032] Figure 18 This is a schematic diagram showing that when the second hot press continues to be shut down, the material continues to be consumed by the first hot press.

[0033] Figure 19 This is a schematic diagram of material consumption and flow after the second hot press of the present invention returns to normal.

[0034] Among them, 1-core feeding mechanism, 2-core sorting mechanism, 3-line assembly, 4-sorting and lifting machine, 5-first layer line, 6-second layer line, 7-third layer line, 8-fourth layer line, 9-material, 11-Type A winding machine, 12-Type B winding machine, 13-A core conveyor line, 14-B core conveyor line, 15-core feeding assembly, 21-first hot press, 22-second hot press, 23-first X-ray inspection machine, 24-second X-ray inspection machine, 25-then... 1. Pre-welding machine; 26. Second pre-welding machine; 27. First butterfly welding machine; 28. Second butterfly welding machine; 29. ​​First laser welding machine; 30. Second laser welding machine; 31. 1#A material conveying line; 32. 2#A material conveying line; 33. 1#B material conveying line; 34. 2#B material conveying line; 35. 1# semi-finished product conveying line; 36. 2# semi-finished product conveying line; 37. 1# finished product conveying line; 38. 2# finished product conveying line; 41. Left side elevator; 42. Middle elevator; 43. Right side elevator. Detailed Implementation

[0035] The technical solution of the present invention will now be described in detail through specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1 to 19 As shown, the present invention proposes a logistics conveying device for a lithium battery core assembly line, including a core feeding mechanism 1, a core sorting mechanism 2, and a line assembly 3. The output end of the core feeding mechanism 1 is connected to the input end of the line assembly 3. Each set of core sorting components in the core sorting mechanism 2 is arranged on the same side. Each set of conveyor lines in the line assembly 3 is arranged corresponding to each set of core sorting components. Each set of conveyor lines is equipped with a sorting and lifting machine 4 at both ends.

[0037] Each core-handling assembly features two identical machines with completely identical structures, avoiding the design and manufacturing difficulties caused by traditional mirror-structured designs. Components are interchangeable, facilitating later equipment maintenance. The two identical structures are located on the same side and serve as redundant backups for each other, both capable of performing the same operations on the battery cells. Therefore, if one structure fails, the other can continue processing the cells, and during idle times, it can continue processing cells that would otherwise be handled by the other structure. This allows the entire conveyor line to operate continuously, and the equipment's capacity is significantly higher than that of traditional conveyor lines when the same equipment fails. Specifically:

[0038] (1) When any piece of equipment malfunctions and stops, Figure 2In the traditional solution, the equipment capacity will drop from 100% to 50%, while in this embodiment, the buffered materials can be consumed by other similar machines, and the equipment capacity will be greater than 50%.

[0039] (2) Figure 2 In traditional solutions, when two different devices (located on the same mirror side) fail and stop simultaneously, the device capacity will drop from 100% to 50%. However, in this embodiment, the buffered materials can be consumed by other similar devices, and the device capacity will be greater than 50%.

[0040] (3) Figure 2 In the traditional approach, when two different devices (located on different mirror sides) fail and stop simultaneously, the device capacity will drop from 100% to 0%. However, in this embodiment, the buffered materials can be consumed by other similar devices, and the device capacity will be greater than 50%.

[0041] In addition, each set of conveyor lines is equipped with sorting and lifting machines 4 at both ends. Each set of conveyor lines is multi-layered, which can effectively improve the material buffering capacity. When the equipment stops due to failure, this embodiment can use the sorting and lifting machines 4 to transport the battery cells to different layers of the conveyor line for buffering. During the buffering process, the battery cells are continued to be consumed by the backup equipment of the failed equipment, thereby improving the product production utilization rate.

[0042] In this embodiment, the core feeding mechanism 1 includes an A-type winding machine 11, a B-type winding machine 12, an A-type core conveyor line 13, a B-type core conveyor line 14, and a core feeding assembly 15. One end of the A-type core conveyor line 13 is connected to the A-type winding machine 11, and the other end is connected to the input end of the core feeding assembly 15. One end of the B-type core conveyor line 14 is connected to the B-type winding machine 12, and the other end is connected to the input end of the core feeding assembly 15. The output end of the core feeding assembly 15 is connected to the input end of the line assembly 3.

[0043] Two sets of core feeding assemblies 15 are provided, each set of core feeding assembly 15 is used to feed the A core output from the A-type winding machine 11 and the B core output from the B-type winding machine 12.

[0044] Understandably, to ensure continuous cell delivery, one or more Type A winding machines 11 and Type B winding machines 12 can be set up according to the subsequent cell delivery needs. The specific number can be determined based on the actual situation. Multiple Type A winding machines 11 can be set up in parallel to produce cores simultaneously, and the same applies to Type B winding machines 12. There are also two sets of core feeding assemblies 15. On the one hand, under normal circumstances, the A cores and B cores output from Type A winding machines 11 and Type B winding machines 12 can be fed separately to achieve orderly feeding of A and B cores. On the other hand, if one set of core feeding assemblies 15 fails, the other set can take over the cores fed by the failed set, ensuring the continuous feeding and delivery of the entire core for a short period, so that the equipment capacity after the failure is greater than 50%.

[0045] In this embodiment, the core finishing mechanism 2 includes a first hot press 21, a second hot press 22, a first X-ray inspection machine 23, a second X-ray inspection machine 24, a first pre-welding machine 25, a second pre-welding machine 26, a first butterfly welder 27, a second butterfly welder 28, a first laser welder 29, and a second laser welder 30 arranged sequentially. The first hot press 21 and the second hot press 22 constitute a first set of core finishing components, the first X-ray inspection machine 23 and the second X-ray inspection machine 24 constitute a second set of core finishing components, the first pre-welding machine 25 and the second pre-welding machine 26 constitute a third set of core finishing components, the first butterfly welder 27 and the second butterfly welder 28 constitute a fourth set of core finishing components, and the first laser welder 29 and the second laser welder 30 constitute a fifth set of core finishing components.

[0046] In order to enable the machine structure in the core sorting assembly to load and unload the battery cells on the line assembly 3, each set of core sorting assemblies is equipped with two machine structures, one for picking up the battery cells and the other for unloading the battery cells. The core loading mechanism 1, the core sorting mechanism 2, the picking up the battery cells and the unloading the battery cells are all purchased components.

[0047] In this embodiment, the line assembly 3 is a segmented logistics line. The segments are respectively set with the first hot press 21, the second hot press 22, the first X-ray inspection machine 23, the second X-ray inspection machine 24, the first pre-welding machine 25, the second pre-welding machine 26, the first butterfly welder 27, the second butterfly welder 28, the first laser welder 29, and the second laser welder 30. The segmented logistics line constitutes a conveyor line. A sorting and lifting machine 4 is set at the segment, and adjacent segments share one sorting and lifting machine 4.

[0048] Specifically, the production line assembly 3 includes four conveyor lines: 1#A material conveyor line 31, 2#A material conveyor line 32, 1#B material conveyor line 33, and 2#B material conveyor line 34. These four conveyor lines are arranged in parallel and pass by the first, second, third, and fourth sets of core winding assembly components in sequence. The first, second, and third sets of core winding assembly components pick up and release materials from the 1#A material conveyor line 31, 2#A material conveyor line 32, 1#B material conveyor line 33, and 2#B material conveyor line 34 using corresponding pick-up and release grippers. The fourth set of core winding assembly components picks up materials from the 1#A material conveyor line 31, 2#A material conveyor line 32, 1#B material conveyor line 33, and 2#B material conveyor line 34 using its pick-up grippers.

[0049] The line assembly 3 also includes a #1 semi-finished product conveyor line 35 and a #2 semi-finished product conveyor line 36. The #1 semi-finished product conveyor line 35 and the #2 semi-finished product conveyor line 36 are arranged in parallel and pass by the fourth group of core winding assembly and the fifth group of core winding assembly in sequence. The fifth group of core winding assembly picks up and releases materials on the #1 semi-finished product conveyor line 35 and the #2 semi-finished product conveyor line 36 through the set picking and releasing claws. The fourth group of core winding assembly releases materials on the #1 semi-finished product conveyor line 35 and the #2 semi-finished product conveyor line 36 through the set picking and releasing claws.

[0050] The line assembly 3 also includes a #1 finished product conveyor line 37 and a #2 finished product conveyor line 38. The input end of the #1 finished product conveyor line 37 is connected to the output end of the #1 semi-finished product conveyor line 35, and the input end of the #2 finished product conveyor line 38 is connected to the output end of the #2 semi-finished product conveyor line 36.

[0051] Among them, the number of layers of conveyor lines 31 (material 1#A), 32 (material 2#A), 33 (material 1#B), 34 (material 2#B), 35 (semi-finished product 1#), 36 (semi-finished product 2#), 37 (finished product 1#), and 38 (finished product 2#) are all greater than or equal to 3 layers, so as to buffer the cores on the corresponding conveyor lines of the faulty machine.

[0052] Specific workflow: Figure 3 The diagram shows the logistics conveying layout of the unloading section of the winding machine in this embodiment. The A cores produced by multiple A-type winding machines 11 are converged and conveyed to the core loading assembly 15. The grippers on the core loading assembly 15 place the A cores on the 1# A material conveying line 31 and the 2# A material conveying line 32. Similarly, the B cores produced by multiple B-type winding machines 12 are converged and conveyed to the core loading assembly 15. The two sets of grippers on the core loading assembly 15 place the B cores on the 1# B material conveying line 33 and the 2# B material conveying line 34.

[0053] Figure 4The diagram shows the material conveying layout at the hot press in this embodiment. The material picking claws on the first hot press 21 and the second hot press 22 can pick up materials from the 1#A material conveying line 31, 2#A material conveying line 32, 1#B material conveying line 33, and 2#B material conveying line 34. The material discharging claws on the first hot press 21 and the second hot press 22 can discharge materials from the 1#A material conveying line 31, 2#A material conveying line 32, 1#B material conveying line 33, and 2#B material conveying line 34. In actual production, the first hot press 21 can pick up and drop materials from conveyor line 31 (material A) and conveyor line 33 (material B); the second hot press 22 can pick up and drop materials from conveyor line 32 (material A) and conveyor line 34 (material B). When the first hot press 21 stops due to a malfunction, the second hot press 22 can consume the materials on conveyor line 31 (material A) and conveyor line 33 (material B). Similarly, when the second hot press 22 stops due to a malfunction, the first hot press 21 can consume the materials on conveyor line 32 (material A) and conveyor line 34 (material B).

[0054] Figure 5 This diagram shows the material conveying layout at the X-RAY inspection machine in this embodiment. The picking grippers on both the first X-RAY inspection machine 23 and the second X-RAY inspection machine 24 can pick up materials from conveyor lines 31 (material 1#A), 32 (material 2#A), 33 (material 1#B), and 34 (material 2#B); the discharging grippers on both the first X-RAY inspection machine 23 and the second X-RAY inspection machine 24 can discharge materials from conveyor lines 31 (material 1#A), 32 (material 2#A), 33 (material 1#B), and 34 (material 2#B). In actual production, the first X-RAY... The first X-ray inspection machine 23 can pick up and put down materials from conveyor line 31 (material A) and conveyor line 33 (material B); the second X-ray inspection machine 24 can pick up and put down materials from conveyor line 32 (material A) and conveyor line 34 (material B); when the first X-ray inspection machine 23 stops due to a malfunction, the second X-ray inspection machine 24 can consume the materials on conveyor line 31 (material A) and conveyor line 33 (material B); similarly, when the second X-ray inspection machine 24 stops due to a malfunction, the first X-ray inspection machine 23 can consume the materials on conveyor line 32 (material A) and conveyor line 34 (material B).

[0055] Similarly, the material-grabbing grippers on the first pre-welding machine 25 and the second pre-welding machine 26 can pick up materials from conveyor lines 31, 32, 33, and 34 of material 1#A, material 2#A, material 1#B, and material 2#B; the material-discharging grippers on the first pre-welding machine 25 and the second pre-welding machine 26 can discharge materials from conveyor lines 31, 32, 33, 34, and material 2#B. In actual production, the first pre-welding machine 25 can discharge materials from conveyor lines 31, 32, 33, 34, and material 2#B. Materials can be picked up and put on material conveyor line 31 and material conveyor line 33 (1#B); the second pre-welding machine 26 can pick up and put on material conveyor line 32 (2#A) and material conveyor line 34 (2#B); when the first pre-welding machine 25 stops due to a malfunction, the second pre-welding machine 26 can consume the materials on material conveyor line 31 (1#A) and material conveyor line 33 (1#B); similarly, when the second pre-welding machine 26 stops due to a malfunction, the first pre-welding machine 25 can consume the materials on material conveyor line 32 (2#A) and material conveyor line 34 (2#B).

[0056] Figure 6 The diagram shows the logistics conveying layout at the butterfly welding machine in this embodiment. The material-picking claws on the first butterfly welding machine 27 and the second butterfly welding machine 28 can pick up materials from conveyor lines 31, 32, 33, and 34, respectively. The material-discharging claws on the first butterfly welding machine 27 and the second butterfly welding machine 28 can discharge materials from conveyor lines 35 and 36, respectively. In actual production, the first butterfly welding machine 27 can pick up materials from conveyor lines 31 and 33 for welding, and the A core and B core are connected into a whole to form a semi-finished product. Then, the semi-finished product is discharged onto conveyor line 35. The second butterfly welding machine 28 can pick up materials from conveyor lines 32 and 34 for welding, and the A core and B core are connected into a whole to form a semi-finished product. Then, the semi-finished product is discharged onto conveyor line 36. When the first butterfly welding machine 27 stops due to a malfunction, the second butterfly welding machine 28 can consume the materials on the 1#A material conveyor line 31 and the 1#B material conveyor line 33; similarly, when the second butterfly welding machine 28 stops due to a malfunction, the first butterfly welding machine 27 can consume the materials on the 2#A material conveyor line 32 and the 2#B material conveyor line 34.

[0057] Figure 7The diagram shows the material conveying layout at the laser welding machine in this embodiment. The material-picking grippers on both the first laser welding machine 29 and the second laser welding machine 30 can pick up materials from the #1 semi-finished product conveyor line 35 and the #2 semi-finished product conveyor line 36, respectively, and weld the semi-finished products to the cover plate to obtain the finished product. The material-discharging grippers on both the first laser welding machine 29 and the second laser welding machine 30 can discharge the finished product from the #1 semi-finished product conveyor line 35 and the #2 semi-finished product conveyor line 36. In actual production, the first laser welding machine 29 can pick up and discharge materials from the #1 semi-finished product conveyor line 35, and the second laser welding machine 30 can pick up and discharge materials from the #2 semi-finished product conveyor line 36. When the first laser welding machine 29 stops due to a malfunction, the second laser welding machine 30 can consume the material from the #1 semi-finished product conveyor line 35; when the second laser welding machine 30 stops due to a malfunction, the first laser welding machine 29 can consume the material from the #2 semi-finished product conveyor line 36.

[0058] Finished product conveyor line 37 (1#) and finished product conveyor line 38 (2#) are connected to the ends of semi-finished product conveyor line 35 (1#) and semi-finished product conveyor line 36 (2#), respectively, to transport the finished products manufactured by the laser welding machine to the subsequent process section.

[0059] Figure 8 A schematic diagram of the logistics conveyor line in this embodiment is shown. In this embodiment of the invention, the 1#A material conveyor line 31, the 2#A material conveyor line 32, the 1#B material conveyor line 33, the 2#B material conveyor line 34, the 1# semi-finished product conveyor line 35, and the 2# semi-finished product conveyor line 36 are all four-layer structures; wherein the first layer line body 5 and the fourth layer line body 8 have unidirectional movement capability, and the second layer line body 6 and the third layer line body 7 have bidirectional movement capability.

[0060] Figures 9-19 This describes the buffering and conveying of materials on the logistics line after any piece of equipment on the assembly line (hot press - laser welding machine) malfunctions and stops. The hot press will be used as an example for illustration. Figures 9-13 This corresponds to the situation where the first hot press 21 is shut down and the second hot press 22 is operating normally. Figures 14-19 This corresponds to the situation where the second hot press 22 is shut down and the first hot press 21 is operating normally.

[0061] like Figures 9-13As shown, the flow direction of the core material 9 under normal conditions is set from right to left (from the right-side elevator 43 through the material line to the middle elevator 42, and then through the middle elevator 42 to the left-side elevator 41, where the left-side elevator 41, the middle elevator 42, and the right-side elevator 43 are core sorting components installed on the conveyor line. The sorting elevator 4 mentioned above is a general term. In this embodiment, the specific names of the left-side elevator 41, the middle elevator 42, and the right-side elevator 43 are used to describe their conveying relationship and working process). The material picking and discharging positions of the first hot press 21 are respectively located near the right-side elevator 43 and the middle elevator 42; the material picking and discharging positions of the second hot press 22 are respectively located near the middle elevator 42 and the left-side elevator 41. Figures 9-13 The diagram shows the situation of material conveyor line 31 (1#A material conveyor line 31) or material conveyor line 33 (1#A material conveyor line 31 and 1#B material conveyor line 33 are the material handling lines when the first hot press 21 is in normal production) after it stops due to a malfunction.

[0062] Among them, such as Figure 9 As shown, after the first hot press 21 stops due to a malfunction, the material-grabbing claws on the first hot press 21 stop picking up material, and the material 9 is conveyed to the second layer line 6 by the right-side elevator 43.

[0063] like Figure 10 As shown, the first hot press 21 continues to be shut down, and the material 9 is conveyed to the second layer line 6 and the third layer line 7 via the right-side elevator 43 until the material is full.

[0064] like Figure 11 As shown, the first hot press 21 remains shut down, while the second hot press 22 begins to consume the buffered material 9. The material 9 is conveyed to the material gripper on the second hot press 22 via the central elevator 42. It is worth noting that the second hot press 22 does not necessarily have to wait until the second layer line 6 and the third layer line 7 are full before it begins to consume material. Instead, the second hot press 22 can begin consuming material at any time after completing the material handling tasks of the 2#A material conveyor line 32 and the 2#B material conveyor line 34 (the 2#A material conveyor line 32 and the 2#B material conveyor line 34 are the material handling lines during normal production of the second hot press 22).

[0065] like Figure 12 As shown, after the first hot press 21 returns to normal operation, the buffered material 9 is consumed by the first hot press 21 and the second hot press 22. Figure 12 One method is shown: the material 9 on the second layer line 6 is consumed by the second hot press 22, and the material 9 on the third layer line 7 is consumed by the first hot press 21. Figure 13 Another method is shown: the material 9 on the second layer line 6 and the third layer line 7 is consumed by the first hot press 21.

[0066] Figures 14-19 This shows the situation of material conveyor line 32 (2#A material) or material conveyor line 34 (2#A material and 2#B material) when the second hot press 22 stops due to a malfunction. (2#A material conveyor line 32 and 2#B material conveyor line 34 are the material handling lines when the second hot press 22 is in normal production.)

[0067] like Figure 14 As shown, after the second hot press 22 stops due to a malfunction, the material-grabbing claws on the second hot press 22 stop picking up material, and the material 9 is gradually buffered on the first layer of the right-side logistics line 5.

[0068] like Figure 15 As shown, the second hot press 22 continues to be shut down. After the first layer 5 of the right-side logistics line is full, the material 9 is buffered onto the second layer 6 by the middle elevator 42.

[0069] like Figure 16 As shown, the second hot press 22 continues to shut down, and the material 9 fills the entire second layer line 6 and the third layer line 7.

[0070] like Figure 17 As shown, the second hot press 22 remains shut down, while the first hot press 21 begins to consume the buffered material 9. The material 9 located at the hot press loading assembly of the first hot press 21 is first grabbed, and the other materials 9 on the first layer line 5 move to the material gripper of the first hot press 21 via the central elevator 42 and the right-side elevator 43. It is worth noting that the first hot press 21 does not necessarily have to wait until the buffers of the second layer line 6 and the third layer line 7 are full before it begins to consume material. Instead, the first hot press 21 can begin consuming material at any time after completing the material handling tasks of the 1#A material conveyor line 31 and the 1#B material conveyor line 33 (the 1#A material conveyor line 31 and the 1#B material conveyor line 33 are the material handling lines during normal production of the first hot press 21).

[0071] like Figure 18 As shown, the second hot press 22 continues to shut down. After the first layer of production line 5 is consumed, it begins to consume the material 9 on the second layer of production line 6 and the third layer of production line 7.

[0072] like Figure 19 As shown, after the second hot press 22 resumes normal production, the material 9 on the second layer line 6 and the third layer line 7 is transported to the material picking point of the picking claw on the second hot press 22 through the central elevator 42.

[0073] When the X-RAY inspection machine, pre-welding machine, butterfly welder, or laser welder malfunctions, the material 9 can be conveyed as if the hot press malfunctioned, because each machine's corresponding conveyor line (composed of segmented logistics lines) is equipped with a sorting and lifting machine 4 to buffer the failure of any machine.

[0074] The following is a brief description of a traditional battery core assembly line to illustrate the advantages of this embodiment, which can utilize the same equipment to consume buffered materials and improve product production utilization. The machine structure in the traditional battery core assembly line is also marked with the lead number corresponding to the machine structure in this embodiment, but the positional relationship of the marking is based on the traditional arrangement and is not related to the position set in this embodiment.

[0075] like Figure 2 As shown, a traditional battery core assembly line also includes a core feeding mechanism 1, a first hot press 21, a second hot press 22, a first X-ray inspection machine 23, a second X-ray inspection machine 24, a first pre-welding machine 25, a second pre-welding machine 26, a first butterfly welder 27, a second butterfly welder 28, a first laser welder 29, a second laser welder 30, a 1#A material conveying line 31, a 2#A material conveying line 32, a 1#B material conveying line 33, a 2#B material conveying line 34, a 1# semi-finished product conveying line 35 and a 2# semi-finished product conveying line, a 1# finished product conveying line 37 and a 2# finished product conveying line. The machine structure with the same markings is the same as that in this embodiment, but the placement positions are different.

[0076] Placement: The structure and placement of the core feeding mechanism 1 are basically the same as in this embodiment, except that the number of layers of core conveyor line 13 (A) and core conveyor line 14 (B) are different. In the past, these two conveyor lines were double-layered structures, but in this embodiment, they are double-layered structures, such as three-layered or four-layered structures. The first hot press 21 and the second hot press 22 are mirror images of each other, the first X-ray inspection machine 23 and the second X-ray inspection machine 24 are mirror images of each other, the first pre-welding machine 25 and the second pre-welding machine 26 are mirror images of each other, the first butterfly welder 27 and the second butterfly welder 28 are mirror images of each other, and the first laser welder 29 and the second laser welder 30 are mirror images of each other.

[0077] Therefore, such as Figure 2 As shown, in the traditional logistics conveying scheme, the A core conveyor line 13, B core conveyor line 14, 1# A material conveyor line 31, 2# A material conveyor line 32, 1# B material conveyor line 33, 2# B material conveyor line 34, 1# semi-finished product conveyor line 35, 2# semi-finished product conveyor line 36, 1# finished product conveyor line 37, and 2# finished product conveyor line 38 are all double-layer structures. That is, the upper layer is used to convey materials (pallets + cores, pallets + semi-finished products, or pallets + finished products), and the lower layer is used for the return of empty pallets. This method will result in insufficient material buffering. If the equipment at the back end of the winding machine fails and stops, the lack of sufficient buffering space in the logistics line will cause the winding machine to stop waiting for materials. Alternatively, if any equipment in the hot press or laser welding machine fails and stops, the lack of buffering space will cause the entire production line (hot press - laser welding machine) to stop waiting for materials. Both of these situations will greatly restrict the improvement of production capacity.

[0078] In addition, such as Figure 2 In the traditional logistics conveying scheme shown, the two sets of core feeding assemblies 15 respectively grab core A and core B from core A conveyor line 11 and core B conveyor line 12. This is a one-to-one relationship, and alternating grabbing is not allowed. The allocation requires comprehensive consideration of the incoming material conditions of core A and core B, and the logic control is very complex. In the conveying scheme of this embodiment, core feeding assemblies 15 can grab core A and core B from core A conveyor line 11 and core B conveyor line 12. This is not a one-to-one relationship, and alternating grabbing is allowed. The logic control requirements are not high.

[0079] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A logistics conveying device for a lithium battery core assembly line, comprising a core feeding mechanism (1), a core sorting mechanism (2), and a line assembly (3), wherein the output end of the core feeding mechanism (1) is connected to the input end of the line assembly (3), each set of core sorting components in the core sorting mechanism (2) is arranged on the same side, each set of conveying lines in the line assembly (3) is arranged correspondingly to each set of core sorting components, and sorting and lifting machines (4) are provided at both ends of each set of conveying lines, and the line assembly (3) adopts a structure of at least three layers; The core finishing mechanism (2) includes a first hot press (21), a second hot press (22), a first X-ray inspection machine (23), a second X-ray inspection machine (24), a first pre-welding machine (25), a second pre-welding machine (26), a first butterfly welder (27), a second butterfly welder (28), a first laser welder (29), and a second laser welder (30) arranged in sequence. The first hot press (21) and the second hot press (22) constitute the first core finishing assembly. The first X-ray inspection machine (23) and the second X-ray inspection machine (24) constitute the second core finishing assembly. The first pre-welding machine (25) and the second pre-welding machine (26) constitute the third core finishing assembly. The first butterfly welder (27) and the second butterfly welder (28) constitute the fourth core finishing assembly. The first laser welder (29) and the second laser welder (30) constitute the fifth core finishing assembly. The two structures in each core finishing assembly are redundant backups of each other.

2. The logistics conveying device for the lithium battery core assembly line according to claim 1, characterized in that, Each core handling assembly has two structures equipped with a material handling gripper and a material dispensing gripper.

3. The logistics conveying device for the lithium battery core assembly line according to claim 2, characterized in that, The line assembly (3) is a segmented logistics line. The segment is respectively set with the first hot press (21), the second hot press (22), the first X-RAY inspection machine (23), the second X-RAY inspection machine (24), the first pre-welding machine (25), the second pre-welding machine (26), the first butterfly welder (27), the second butterfly welder (28), the first laser welder (29), and the second laser welder (30). The segmented logistics line constitutes a conveyor line. A sorting and lifting machine (4) is set at the segment. Adjacent segments share a sorting and lifting machine (4).

4. The logistics conveying device for the lithium battery core assembly line according to claim 3, characterized in that, The line assembly (3) includes a 1#A material conveying line (31), a 2#A material conveying line (32), a 1#B material conveying line (33), and a 2#B material conveying line (34). The four conveying lines are arranged in parallel and pass by the first group of core sorting assemblies, the second group of core sorting assemblies, the third group of core sorting assemblies, and the fourth group of core sorting assemblies in sequence. The first group of core sorting assemblies, the second group of core sorting assemblies, and the third group of core sorting assemblies all pick up and release materials on the 1#A material conveying line (31), the 2#A material conveying line (32), the 1#B material conveying line (33), and the 2#B material conveying line (34) through the corresponding pick-up and release claws. The fourth group of core sorting assemblies picks up materials on the 1#A material conveying line (31), the 2#A material conveying line (32), the 1#B material conveying line (33), and the 2#B material conveying line (34) through the pick-up claws.

5. The logistics conveying device for the lithium battery core assembly line according to claim 4, characterized in that, The line assembly (3) also includes a 1# semi-finished product conveyor line (35) and a 2# semi-finished product conveyor line (36). The 1# semi-finished product conveyor line (35) and the 2# semi-finished product conveyor line (36) are arranged in parallel and pass by the fourth group of core sorting components and the fifth group of core sorting components in sequence. The fifth group of core sorting components picks up and releases materials on the 1# semi-finished product conveyor line (35) and the 2# semi-finished product conveyor line (36) through the set pick-up and release claws. The fourth group of core sorting components releases materials on the 1# semi-finished product conveyor line (35) and the 2# semi-finished product conveyor line (36) through the set release claws.

6. The logistics conveying device for a lithium battery core assembly line according to claim 5, characterized in that, The line assembly (3) also includes a 1# finished product conveyor line (37) and a 2# finished product conveyor line (38). The input end of the 1# finished product conveyor line (37) is connected to the output end of the 1# semi-finished product conveyor line (35), and the input end of the 2# finished product conveyor line (38) is connected to the output end of the 2# semi-finished product conveyor line (36).

7. The logistics conveying device for a lithium battery core assembly line according to claim 6, characterized in that, The number of layers of the 1#A material conveying line (31), 2#A material conveying line (32), 1#B material conveying line (33), 2#B material conveying line (34), 1# semi-finished product conveying line (35), 2# semi-finished product conveying line (36), 1# finished product conveying line (37) and 2# finished product conveying line (38) are all greater than or equal to 3 layers.

8. The logistics conveying device for a lithium battery core assembly line according to any one of claims 1-7, characterized in that, The core feeding mechanism (1) includes an A-type winding machine (11), a B-type winding machine (12), an A-type core conveyor line (13), a B-type core conveyor line (14), and a core feeding assembly (15). One end of the A-type core conveyor line (13) is connected to the A-type winding machine (11), and the other end is connected to the input end of the core feeding assembly (15). One end of the B-type core conveyor line (14) is connected to the B-type winding machine (12), and the other end is connected to the input end of the core feeding assembly (15). The output end of the core feeding assembly (15) is connected to the input end of the line assembly (3).

9. The logistics conveying device for a lithium battery core assembly line according to claim 8, characterized in that, Two sets of core feeding assemblies (15) are set up. Each set of core feeding assemblies (15) is used to feed the A cores output by the A-type winding machine (11) and the B cores output by the B-type winding machine (12).

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