Lithium battery production handling system and control method thereof

Abstract

The application discloses a lithium battery production carrying system and a control method thereof, and belongs to the technical field of lithium battery structural member feeding and discharging conveying systems. In the application, at least one production line is arranged in a production area, and two or more production devices are arranged on each production line and used for feeding and discharging different materials. Meanwhile, a plurality of standby material conveying lines are arranged in a standby material area and used for feeding and discharging different materials, and the production area and the standby material area are transferred by a trolley assembly in a crown block conveying system, so that the feeding and discharging of different structural material of various lithium battery models in the same workshop are realized. In combination with the control method of the lithium battery production carrying system, full-automatic processing of the feeding and discharging of production materials is realized, the feeding and discharging of materials is prevented, the wrong feeding of materials is avoided, the feeding efficiency is improved, the feeding and discharging of the production area and personnel are separated, the production efficiency and production safety of the production line are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery structural component loading and unloading conveying systems, and more specifically, to a lithium battery production and handling system and a control method thereof. Background Art

[0002] Lithium battery structural components refer to the various components and parts that make up a lithium battery, including the outer casing, cover, positive and negative electrode sheets, separators, and electrolyte. These structural parts play a key role in lithium batteries, such as transmitting energy, carrying electrolyte, protecting battery safety, and fixing and supporting the battery.

[0003] Different types of lithium batteries often have different structural parts. When producing lithium batteries on existing production lines, the loading of structural parts is usually done manually, which requires a lot of manpower and is not conducive to the humidity environment control in the workshop. In addition, for workshops that produce multiple types of lithium batteries at the same time, it is necessary to manually distinguish the types of materials for loading, which is prone to errors and rework. Although AGV transportation has been adopted to replace manual labor, walking channels must be reserved next to the line when planning AGV transportation. In workshops with high traffic volume of production equipment, it is necessary to constantly avoid obstacles with manual labor during the walking process, resulting in low operating efficiency. Summary of the Invention

[0004] The present invention provides a lithium battery production handling system and a control method thereof, which are used to solve the loading and unloading problems when multiple battery models are produced simultaneously on production lines, realize fully automatic processing of loading and unloading of production materials, and realize material error prevention to avoid the situation of sending wrong materials. At the same time, the loading efficiency is improved, the loading equipment and personnel are separated, and the production efficiency and production safety of the production line are improved.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] A lithium battery production and handling system, comprising:

[0007] A production conveying system is provided in a production area and includes at least one production line. Two or more production equipment are provided on the production line. The production equipment includes a discharge conveyor and a loading conveyor. One end of the discharge conveyor corresponds to a production pallet recovery position, and one end of the loading conveyor corresponds to a production loading position.

[0008] A material preparation conveying system is provided in the material preparation area and includes a plurality of material preparation conveying lines, one end of each of which extends into the production area; a material preparation tray recovery position is provided at one end of at least one of the material preparation conveying lines located in the production area, and a material preparation unloading position is provided at one end of at least another of the material preparation conveying lines located in the production area;

[0009] The overhead crane conveying system is located above the production conveying system and comprises at least one track connected at both ends, a plurality of trolley assemblies are arranged on the track, and the trolley assemblies convey the trays along the track in a circulating manner.

[0010] In the scheme, when the material preparation conveying system is running, the trolley assembly can be conveyed to the material preparation tray recycling position to transfer the returned empty tray to the corresponding material preparation conveying line, and the trolley assembly can be conveyed to the material preparation unloading position to transfer the tray loaded with material on the corresponding material preparation conveying line. Meanwhile, the trolley assembly can convey the full tray loaded with material to the production loading position and transfer the tray loaded with material to the loading conveyor; and the trolley assembly can be conveyed to the production tray recycling position to recycle the empty tray returned from the unloading conveyor. In the scheme, the production area has at least one production line, and two or more production devices are arranged on each production line to be used for the loading and unloading of different materials. Meanwhile, a plurality of material preparation conveying lines are arranged in the material preparation area to be used for the loading and unloading of different materials, and the production area and the material preparation area are transferred by the trolley assembly in the overhead crane conveying system, so that the transportation of different structural material of various lithium battery models in the same workshop is realized, and the space utilization is further reduced compared with the AGV conveying mode.

[0011] As a further improvement, the unloading conveyor comprises a plurality of parallelly arranged rollers, and the rotation direction of the rollers is arranged to face the production tray recycling position; and the loading conveyor comprises a plurality of parallelly arranged rollers, and the rotation direction of the rollers is arranged to face away from the production loading position.

[0012] As a further improvement, the material preparation conveying line comprises a plurality of parallelly arranged rollers, wherein the rotation direction of the rollers on the material preparation conveying line corresponding to the material preparation tray recycling position faces away from the material preparation tray recycling position, and wherein the rotation direction of the rollers on the material preparation conveying line corresponding to the material preparation unloading position faces the material preparation unloading position.

[0013] As a further improvement, the material preparation conveying line is provided with a transplanting machine at one end in the material preparation area, and the transplanting machine is used for turning the tray.

[0014] As a further improvement, a transfer conveying line is connected between adjacent transplanting machines, and the transfer conveying line comprises a plurality of parallelly arranged rollers, and the rotation direction of the rollers is consistent with the conveying direction of the transplanting machine.

[0015] As a further improvement, the material preparation conveying line extends to one end in the production area to form a docking interface for transferring the trolley assembly in the overhead crane conveying system, and a switchable isolation door is arranged above the material preparation conveying line close to the docking interface.

[0016] As a further improvement, the isolation door includes a first isolation door and a second isolation door, and the first isolation door and the second isolation door are spaced apart. The production area and the preparation area have different environmental requirements, and the setting of double isolation doors can effectively reduce the environmental exchange between the production area and the preparation area.

[0017] As a further improvement, when multiple tracks are connected end-to-end, the different tracks have shared track sections and non-shared track sections, which are arranged above each production line. This improves track utilization.

[0018] As a further improvement, track conversion is performed between the shared track portion and the non-shared track portion via a track changing assembly.

[0019] The present invention also provides a control method for a lithium battery production and transportation system, which is used to control any of the lithium battery production and transportation systems described above;

[0020] The lithium battery production and handling system also includes a host computer, a scheduling system and a conveying control system;

[0021] The production equipment in the production conveying system outputs material demand, and the upper computer interacts with the scheduling system according to the material demand of the production equipment in the production conveying system. The scheduling system interacts with the conveying control system, and the scheduling system dispatches the trolley assembly in the overhead crane conveying system to the material demand location according to the material demand. At the same time, the conveying control system controls the movement of the corresponding trolley assembly and the operation of the pallet.

[0022] The lithium battery production and handling system in this solution is combined with the control method of the lithium battery production and handling system to realize the fully automatic processing of loading and unloading of production materials, and realize material error prevention to avoid the situation of sending wrong materials. At the same time, it improves the loading efficiency, realizes the diversion of loading and unloading of materials and personnel in the production area, and improves the production efficiency and production safety of the production line.

[0023] Other technical problems that can be solved by the lithium battery production and handling system and the control method thereof of the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the lithium battery production and handling system layout;

[0025] Figure 2 This is a schematic diagram of the control method principle of the lithium battery production and handling system;

[0026] Figure 3 This is a schematic diagram of the vehicle assembly structure;

[0027] Figure 4 This is a schematic diagram of the first position of the track change assembly;

[0028] Figure 5 This is a schematic diagram of the second position of the track change assembly;

[0029] Figure 6 This is a flow chart of the material control method for production equipment;

[0030] Figure 7 This is a flow chart of the car scheduling method;

[0031] Figure 8 This is the flow chart of the trolley track change control;

[0032] Figure 9 Flowchart of the warehouse material preparation and delivery system scheduling system.

[0033] Description of labels:

[0034] 100. Production conveying system;

[0035] 1. First production line; 10. First production equipment; 101. First unloading conveyor; 102. First loading conveyor; 11. Second production equipment; 111. Second unloading conveyor; 112. Second loading conveyor;

[0036] 2. Second production line;

[0037] 3. The third production line;

[0038] 44. Production loading position; 45. Production pallet recovery position; 46. Preparation pallet recovery position; 47. Preparation unloading position;

[0039] 4. Overhead crane conveying system; 40. Maintenance station; 41. Track; 42. Track change assembly; 421. First track; 422. Second track; 43. Trolley assembly; 431. Trolley drive module; 432. Trolley belt; 433. Support frame;

[0040] 5. Material preparation and conveying system; 51. Material preparation and conveying line; 52. Isolation door; 53. Transplanter; 54. Material preparation and loading port; 55. Code scanning component; 56. Start button; 57. Transfer conveyor line; 58. Docking port;

[0041] 61. Host computer; 62. Dispatching system; 63. Transport control system. DETAILED DESCRIPTION

[0042] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0043] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0044] At the same time, the terms such as "upper", "lower", "left", "right", and "middle" cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content. In addition, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to express other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0045] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0046] like Figure 1 As shown, the present invention provides a lithium battery production and handling system, in which the workshop area of ​​the production system layout includes a production area and a material preparation area, wherein the production area is used for the manufacture of lithium battery cells, and the material preparation area is used for warehouse storage of lithium battery structural parts materials, material unpacking, and placement in a loading area waiting for manual loading, etc.

[0047] Specifically combined Figure 1 As shown, a lithium battery production and transportation system includes a production conveying system 100, an overhead crane conveying system 4 and a material preparation conveying system 5.

[0048] The production conveyor system 100 is located in a production area and includes at least one production line. Each production line is equipped with two or more production equipment, including a discharge conveyor and a loading conveyor. One end of the discharge conveyor corresponds to a production pallet recovery position 45, and one end of the loading conveyor corresponds to a production loading position 44.

[0049] The overhead crane conveying system 4 is located above the production conveying system 100, and includes at least one track 41 connected end to end. A plurality of trolley assemblies 43 are arranged on the track 41. The trolley assemblies 43 are circulated along the track 41 to convey pallets; the trolley assemblies 43 can convey pallets loaded with materials to the production loading position 44, and transfer the pallets loaded with materials to the loading conveyor; the trolley assemblies 43 can be conveyed to the production pallet recovery position 45 for recovering empty pallets returned from the unloading conveyor.

[0050] The material preparation and conveying system 5 is arranged in the material preparation area, including multiple material preparation conveying lines 51, and one end of the material preparation conveying line 51 extends into the production area; at least one material preparation conveying line 51 is located in the production area at one end and a material preparation pallet recovery position 46 is correspondingly set, and at least another material preparation conveying line 51 is located in the production area at one end and a material preparation unloading position 47 is correspondingly set; the trolley assembly 43 can be transported to the material preparation pallet recovery position 46 to transfer the returned empty pallet to the corresponding material preparation conveying line 51, and the trolley assembly 43 can be transported to the material preparation unloading position 47 to transfer the pallet loaded with materials on the corresponding material preparation conveying line 51.

[0051] Furthermore, the unloading conveyor includes a plurality of rollers arranged in parallel, the rotation direction of the rollers being set toward the production pallet recovery position 45; the loading conveyor includes a plurality of rollers arranged in parallel, the rotation direction of the rollers being set away from the production loading position 44. The rotation of the rollers can be driven by a motor and a belt. This roller driving method is common in the prior art and will not be described in detail here.

[0052] Specifically, the three production lines are the first production line 1, the second production line 2, and the third production line 3, with the equipment layout identical on each line. It should be noted that in other solutions, the number of production lines can be set to another number, but at least one production line must be included. Taking the first production line 1 as an example for detailed description, the production equipment includes a first production facility 10 and a second production facility 11. The first production facility 10 includes a first unloading conveyor 101 and a first loading conveyor 102, while the second production facility 11 includes a second unloading conveyor 111 and a second loading conveyor 112. Specifically, the production of two types of lithium batteries will be described, including corresponding materials X and Y requiring loading. The first production facility 10 is used for loading and unloading material X, while the second loading conveyor 112 is used for loading and unloading material Y. The first and second production facilities 10, 11 have identical structures, but convey different materials. The first production facility 10 will be used as an example for this description. The first loading conveyor 102 in the first production facility 10, corresponding to the production loading position 44, has a loading port at one end and a unloading port at the other end. One end of the first unloading conveyor 101 corresponding to the production pallet recovery position 45 is the unloading port, and the other end is the loading port. The pallet is conveyed on the trolley assembly 43. The required materials are loaded on the pallet during feeding, and the empty pallet is recovered during collection. At the loading port of the first loading conveyor 102, the trolley assembly 43 transports the pallet loaded with materials to the production loading position 44. The pallet is transported to the first loading conveyor 102 through the loading port. The first loading conveyor 102 transports the material X to the battery processing equipment. After the material is taken, the empty pallet is transferred to the loading port of the first unloading conveyor 101, and then transported to the unloading port of the first unloading conveyor 101, and then transferred to the trolley assembly 43 located at the production pallet recovery position 45.

[0053] It should be noted that although the first production equipment 10 and the second production equipment 11 for conveying have the same structure, they convey different materials. Due to the difference in materials, the battery processing equipment will be different. Similarly, the battery processing equipment on other production lines will be adjusted accordingly according to the battery model.

[0054] The loading and unloading of material Y on the second loading conveyor 112 is consistent with the loading and unloading of material X on the first production equipment 10. Although the types of materials transported by the trolley assembly 43 are different, in order to ensure the versatility of the trolley assembly, the structure of each trolley assembly is consistent and the specifications and dimensions of the pallets are consistent.

[0055] Recombination Figure 1 As shown, the material preparation conveying line 51 in the material preparation conveying system 5 includes a plurality of rollers arranged in parallel, wherein the rotation direction of the rollers on the material preparation conveying line 51 corresponding to the material preparation pallet recovery position 46 is away from the material preparation pallet recovery position 46, and the rotation direction of the rollers on the material preparation conveying line 51 corresponding to the material preparation unloading position 47 is toward the material preparation unloading position 47.

[0056] For ease of explanation, the multiple material preparation conveying lines 51 in the material preparation conveying system 5 are respectively material preparation conveying line 51-a, material preparation conveying line 51-b, material preparation conveying line 51-c and material preparation conveying line 51-d, wherein the material preparation conveying line 51-a is arranged corresponding to the material preparation pallet recovery position 46, and the material preparation conveying line 51-b, material preparation conveying line 51-c and material preparation conveying line 51-d are arranged corresponding to the material preparation unloading position 47. In other cases, the material preparation conveying lines 51 can also be set to other numbers.

[0057] As a further improvement, a transfer machine 53 is installed at one end of the stock preparation conveyor line 51 within the stock preparation area. This transfer machine 53 is used to steer the pallets. A belt conveyor structure is located above the transfer machine 53. This belt conveyor structure comprises several belts spaced apart from each other, conveying in a direction different from that of the stock preparation conveyor line 51. The belts are spaced apart from the rollers. The belts can be driven by a motor. Furthermore, the belt conveyor structure can be raised and lowered simultaneously, and this raising and lowering can be controlled using conventional mechanisms such as rack and pinion.

[0058] Adjacent transplanters 53 are connected to a transfer conveyor line 57, which includes a plurality of rollers arranged in parallel. The rotation direction of the rollers is consistent with the conveying direction of the transplanter 53. Specifically, the conveying direction of the belt on the transplanter 53 is consistent with the direction of the transfer conveyor line 57. Figure 1 Taking the middle view direction as an example, in this embodiment, the material preparation conveyor line 51-a, the material preparation conveyor line 51-b, the material preparation conveyor line 51-c and the material preparation conveyor line 51-d are all arranged vertically, and the transfer conveyor line 57 is arranged horizontally.

[0059] As a preferred embodiment, one end of the material preparation conveyor line 51 extending into the production area is a docking port 58 for connecting with the trolley assembly 43 in the overhead crane conveyor system 4. A closable isolation door 52 is provided above the material preparation conveyor line 51 near the docking port 58. Furthermore, the isolation door 52 includes a first isolation door and a second isolation door, which are spaced apart, with the first isolation door being located closer to the production area and the second isolation door being located closer to the material preparation area.

[0060] More specifically, a transplanter 53 is provided at one end of material preparation conveyor line 51-a, and a barcode scanning assembly 55 is provided on one side of the transplanter 53. Barcode scanning assembly 55 can be an existing barcode scanning gun, etc. Transplanters 53 are also provided at one end of material preparation conveyor lines 51-b, 51-c, and 51-d. A material preparation loading port 54 is provided on one side of the transplanter 53. A roller-type conveyor line is also provided at this loading port 54, and a start button 56 is provided next to the roller-type conveyor line. Manual material loading is performed at this loading port 54.

[0061] Again, using the material X loading system as an example, preparation conveyor line 51-a is used to return empty pallets, while preparation conveyor lines 51-b, 51-c, and 51-d are used to transport full pallets. In some cases, preparation conveyor lines 51-b, 51-c, and 51-d can correspond to the loading needs of production line 1, production line 2, and production line 3. Trolley assembly 43 transports empty pallets to preparation pallet recovery position 46. Empty pallets enter preparation conveyor line 51-a through docking port 58. When the empty pallet is transported near isolation gate 52, the first isolation gate opens, and the empty pallet is transported between the first and second isolation gates, where the first isolation gate closes. After the first isolation gate closes, the second isolation gate opens, and the empty pallet continues to be transported. After that, the second isolation gate closes, and the empty pallet continues to be transported to transplanter 53. The belt on transplanter 53 rises to support the pallet, thereby transporting it to transfer conveyor line 57.

[0062] For example, loading material onto the material preparation conveyor line 51-b is performed manually at the material preparation loading port 54. A full pallet enters the material preparation conveyor line 51-b and continues to be transported to the material preparation conveyor line 51-b. When the pallet reaches the material preparation unloading port 54, the second isolation door opens, and the full pallet is transported between the first and second isolation doors, where the second isolation door closes. After the second isolation door closes, the first isolation door opens, and the full pallet continues to be transported. The first isolation door then closes, and the full pallet continues to be transported to the docking port 58. The full pallet is then transferred to the trolley assembly 43 located at the material preparation unloading position 47.

[0063] The setting and conveying method of the material preparation and conveying system 5 for material Y are the same as those for material X.

[0064] In addition, the isolation door 52 includes a first isolation door and a second isolation door. The environmental requirements of the production area and the material preparation area are different. The setting of the double isolation door can effectively reduce the environmental exchange between the production area and the material preparation area.

[0065] As a preferred embodiment, when multiple tracks 41 are connected end-to-end, different tracks 41 have shared track sections and non-shared track sections, with the non-shared track sections arranged above each production line. Furthermore, track switching between the shared track sections and the non-shared track sections is performed using a track switching assembly 42.

[0066] In this embodiment, a first production line 1, a second production line 2 and a third production line 3 are set up, and three non-shared track parts are set up, which are respectively located above the first production line 1, the second production line 2 and the third production line 3 to transport materials therefor. Figure 1As shown, the circulating track 41 for transporting materials for the first production line 1 includes a common track portion 1a and a non-shared track portion 1b, and the non-shared track portion 1b is arranged above the first production line 1; the circulating track 41 for transporting materials for the second production line 2 includes a common track portion 2a and a non-shared track portion 2b, and the non-shared track portion 2b is arranged above the second production line 2, wherein the common track portion 1a shares part of the track of the circulating track 41 for transporting materials for the second production line 2; the circulating track 41 for transporting materials for the third production line 3 includes a common track portion 3a and a non-shared track portion 3b, and the non-shared track portion 3b is arranged above the third production line 3, wherein the common track portion 2a shares part of the track of the circulating track 41 for transporting materials for the third production line 3.

[0067] Combine Figure 3 As shown, the trolley assembly 43 includes a trolley drive module 431, a trolley belt 432 and a support frame 433. A travel motor is provided in the trolley drive module 431, which drives the rollers to roll. When the rollers roll, they move along the track 41, thereby transporting the trolley assembly 433. A number of rollers are provided on the support frame 433, which drive the loading and unloading of pallets when the rollers rotate. One end of the trolley belt 432 is connected to the trolley drive module 431, and the other end is connected to the support frame 433. In some cases, the trolley belt 432 can drive the support frame 433 to rise and fall. In this case, a lifting motor is required to drive the operation of the trolley belt 432, thereby controlling the lifting and lowering of the support frame 433.

[0068] Combine Figure 4 and Figure 5 As shown, the track change assembly 42 includes a support plate and a first track 421 and a second track 422 located on the support plate. In one embodiment, the support plate moves back and forth between the first position and the second position under the action of the cylinder. When the support plate moves to the first position, as shown in FIG. Figure 4 As shown in , for example, the common track portion 1a is connected to the non-common track portion 1b through the second track 422; when the support plate moves to the second position, as shown in Figure 5 As shown in FIG, the common rail portion 1 a is connected to the common rail portion 2 a through the first rail 421 .

[0069] The overhead crane conveying system 4 further includes a maintenance position 40, which is located outside the circularly arranged track 41, and the track in the maintenance position 40 is also connected to the track 41 through a track change assembly 42. The maintenance position 40 is used to locate a trolley assembly 43 that has failed.

[0070] The rotation of all the rollers in this solution can be driven by common existing methods such as motors and belts.

[0071] In the scheme, the production area has at least one production line, and two or more production devices are arranged on each production line to be used for the feeding and discharging of different materials. Meanwhile, a plurality of standby material conveying lines 51 are arranged in the standby material area to be used for the feeding and discharging of different materials, and the production area and the standby material area are transferred by the trolley assembly 43 in the crown block conveying system 4, so that the carrying of different structural material of lithium battery models in the same workshop is realized, and the space utilization is further reduced compared with the AGV conveying mode.

[0072] As shown in Figure 2 , the present application also provides a control method of the lithium battery production carrying system, which is used for controlling the lithium battery production carrying system.

[0073] Further, the lithium battery production carrying system further comprises a host computer 61, a scheduling system 62 and a conveying control system 63; the production device in the production conveying system 100 outputs a material calling demand, the host computer 61 interacts with the scheduling system 62 according to the material calling demand of the production device in the production conveying system 100, the scheduling system 62 interacts with the conveying control system 63, and the scheduling system 62 dispatches the trolley assembly 43 in the crown block conveying system 4 to the material calling demand according to the material calling demand, and simultaneously the conveying control system 63 controls the movement of the corresponding trolley assembly 43 and the operation of the tray.

[0074] Specifically, as shown in Figure 6 , after a certain production device consumes a tray of material, the production device outputs a material calling demand, the host computer 61 interacts with the scheduling system 62, the scheduling system 62 judges the material calling address, and dispatches the corresponding trolley assembly 43 to feed and discharge. After the production device consumes a tray of material, the production device outputs a material calling demand and an empty tray demand at the same time, the scheduling system 62 also judges the empty tray address, and dispatches the corresponding trolley assembly 43 to the corresponding position.

[0075] As shown in Figure 7As shown, when the scheduling system 62 dispatches the trolley assembly 43 according to the material request address, in order to improve operational efficiency, it is preferred to first determine whether the unloading conveyor and the loading conveyor of the same production equipment can simultaneously meet the requirements of the empty and full pallet exchange. For example, whether the loading and unloading ports of the first unloading conveyor 101 and the first loading conveyor 102 in the first production equipment 10 both have material requests, that is, whether there are both empty pallet unloading and full pallet loading tasks. If so, the trolley is dispatched to the corresponding material preparation unloading position 47 of the material preparation conveyor line 51 according to the order of demand, and the full pallet is removed. After that, the conveying control system 63 releases the full pallet position, and the next full pallet runs to this position. After the trolley takes the full pallet, it runs to the production loading position 44 to complete the loading of the full pallet. After that, the trolley runs to the production pallet recovery position 45 of the material calling equipment, takes the empty pallet from the unloading port there, and then runs to the preparation pallet recovery position 46 to return the empty pallet to the preparation conveyor line. Each time a loading or unloading action is completed, the scheduling system needs to interact with the system in the host computer to achieve a closed loop task. If not, the scheduling system sets a certain waiting time T. If the loading and unloading ports of the same production equipment meet the empty and full exchange conditions within this waiting time T, the above process is executed. If not, the separate material calling operation of the calling port is executed. The conveying control system 63 can be implemented by PLC.

[0076] like Figure 8 As shown, before the trolley runs to the position where the track change assembly is required, the track assembly receives the track change request, executes the track change assembly action, completes the track change, and the trolley assembly continues to move along the specified track.

[0077] like Figure 9 As shown, the conveying control system 63 interacts with the scheduling system. After receiving the empty pallet return task, the conveying control system 63 controls the material preparation conveyor line 51-a to convey the empty pallet forward. The empty pallet is placed on the transplanter 53, and the code scanning component 55 performs a code scan to determine the material type of the pallet. After the judgment is completed, it moves forward along the transfer conveyor line 57 and moves to the corresponding manual material preparation loading port 54. After the manual loading is completed, the start button 56 is pressed, and the full pallet is transferred to the corresponding model of the material preparation conveyor line 51-b, material preparation conveyor line 51-c or material preparation conveyor line 51-d, and then enters the docking port 58 to perform the next loading task with the trolley component.

[0078] In this solution, there is at least one production line in the production area, and each production line is equipped with two or more production equipment for loading and unloading different materials. At the same time, multiple material preparation conveyor lines 51 are set up in the material preparation area for loading and unloading different materials. The production area and the material preparation area are transferred through the trolley assembly 43 in the overhead crane conveyor system 4, so as to realize the transportation of different structural materials when producing multiple lithium battery models in the same workshop. At the same time, combined with the control method of the lithium battery production and transportation system, the full automatic processing of the loading and unloading of production materials is realized, and the material is prevented from being mistaken, avoiding the situation of sending the wrong material, while improving the loading efficiency, realizing the diversion of loading and unloading of materials and personnel in the production area, and improving the production efficiency and production safety of the production line.

[0079] The terms "installed," "disposed," "equipped with," and "connected" as used herein should be interpreted broadly. For example, they may refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0080] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A lithium battery production and handling system, characterized in that: include: A production conveying system (100) is provided in a production area and includes at least one production line, wherein two or more production equipment are provided on the production line, and the production equipment includes a discharge conveyor and a loading conveyor; a production pallet recovery position (45) is provided at one end of the discharge conveyor, and a production loading position (44) is provided at one end of the loading conveyor; A material preparation conveying system (5) is provided in a material preparation area and includes a plurality of material preparation conveying lines (51), and one end of each of the material preparation conveying lines (51) extends into the production area; a material preparation tray recovery position (46) is provided corresponding to one end of at least one of the material preparation conveying lines (51) located in the production area, and a material preparation unloading position (47) is provided corresponding to one end of at least another of the material preparation conveying lines (51) located in the production area; The overhead crane conveying system (4) is located above the production conveying system (100) and includes at least one track (41) connected end to end. A plurality of trolley assemblies (43) are arranged on the track (41), and the trolley assemblies (43) circulate and convey pallets along the track (41).

2. The lithium battery production and handling system according to claim 1, characterized in that: The unloading conveyor includes a plurality of rollers arranged in parallel, and the rotation direction of the rollers is set toward the production pallet recovery position (45); the loading conveyor includes a plurality of rollers arranged in parallel, and the rotation direction of the rollers is set away from the production loading position (44).

3. The lithium battery production and handling system according to claim 1, characterized in that: The material preparation conveyor line (51) includes a plurality of rollers arranged in parallel, wherein the direction of rotation of the rollers on the material preparation conveyor line (51) corresponding to the material preparation tray recovery position (46) is away from the material preparation tray recovery position (46), and the direction of rotation of the rollers on the material preparation conveyor line (51) corresponding to the material preparation unloading position (47) is toward the material preparation unloading position (47).

4. The lithium battery production and handling system according to claim 3, characterized in that: A transplanter (53) is provided at one end of the material preparation conveying line (51) located in the material preparation area, and the transplanter (53) is used to turn the tray.

5. The lithium battery production and handling system according to claim 4, characterized in that: A transfer conveyor line (57) is connected between adjacent transplanters (53), and the transfer conveyor line (57) includes a plurality of rollers arranged in parallel, and the rotation direction of the rollers is consistent with the conveying direction of the transplanters (53).

6. The lithium battery production and handling system according to claim 3, 4 or 5, characterized in that: One end of the material preparation conveying line (51) extending into the production area is a docking port (58) for connecting with the trolley assembly (43) in the overhead crane conveying system (4), and an isolation door (52) that can be opened and closed is provided above the material preparation conveying line (51) near the docking port (58).

7. The lithium battery production and handling system according to claim 6, characterized in that: The isolation door (52) comprises a first isolation door and a second isolation door, and the first isolation door and the second isolation door are spaced apart.

8. The lithium battery production and handling system according to any one of claims 1 to 5, characterized in that: When a plurality of end-to-end connected tracks (41) are provided, different tracks (41) have a common track portion and a non-common track portion, and the non-common track portion is arranged above each production line.

9. The lithium battery production and handling system according to claim 8, characterized in that: Track conversion is performed between the shared track portion and the non-shared track portion via a track changing assembly (42).

10. A control method for a lithium battery production and handling system, characterized in that: Used to control the lithium battery production and handling system according to any one of claims 1 to 9; The lithium battery production and handling system further comprises a host computer (61), a scheduling system (62) and a conveying control system (63); The production equipment in the production conveying system (100) outputs a material demand, and the upper computer (61) interacts with the scheduling system (62) according to the material demand of the production equipment in the production conveying system (100). The scheduling system (62) interacts with the conveying control system (63), and the scheduling system (62) dispatches the trolley assembly (43) in the overhead crane conveying system (4) to the material demand location according to the material demand, and at the same time, the conveying control system (63) controls the movement of the corresponding trolley assembly (43) and the operation of the pallet.

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