A multi-tray simultaneous plating method

Abstract

The application discloses a kind of multi-tray simultaneous formation methods, comprising the following steps: at least two cabinet points are arranged in the same formation cabinet, and all cabinet points in the same formation cabinet are arranged in series connection;In the warehouse of formation cabinet, after all cabinet points of the same formation cabinet are finished, the stacker moves to the position of formation cabinet, executes simultaneous fork tray task, simultaneously transports all trays in formation cabinet to the waiting position of warehouse logistics line, and the state of formation cabinet warehouse is released as empty state;In the warehouse of formation cabinet, all cabinet points in the formation cabinet are empty state, the stacker moves to the waiting position of warehouse logistics line, one-time fork all tray batteries on the waiting position of warehouse logistics line, and goes to formation cabinet, one-time put into tray battery;The simultaneous formation method improves the formation conveying efficiency, reduces the area occupied by production line and logistics cost input.

Description

Technical Field

[0001] This invention relates to the field of lithium battery processing technology, and in particular to a method for simultaneous formation of multiple trays. Background Technology

[0002] Formation and capacity testing are indispensable processes for lithium batteries. The realization of the formation process requires the use of battery trays as loading units, relying on logistics lines and stacker cranes and other related auxiliary equipment to achieve the docking of the trays with the formation equipment.

[0003] Traditional pallet handling methods, limited by formation design and stacker crane structure and software integration, typically employ single-station stacker cranes, handling one pallet at a time and interacting with formation equipment to achieve pallet delivery and docking. However, due to increased battery production capacity and efficiency, and optimized formation and capacity testing times, the number of aisles in formation / capacity testing layouts is decreasing, while the efficiency requirements for individual aisles are increasing. Traditional single-station pallet docking methods can no longer meet the efficiency demands of formation and capacity testing. With the development of logistics equipment, stacker cranes have already seen mature applications in traditional rack-type warehousing and logistics. Therefore, the application of stacker cranes in formation / capacity testing is urgently needed.

[0004] However, unlike the first-in, first-out (FIFO) scheduling logic of traditional rack-based warehousing and logistics, the docking logic of formation / capacity separation is based on process requirements and the needs of the formation / capacity separation equipment to realize the entry and exit of goods. At the same time, due to the design structure of the formation / capacity separation equipment and the differences in the technical capabilities of suppliers, two adjacent cabinets in the same cabinet are usually connected in series or in parallel. Under different design methods, the docking logic between formation / capacity separation and stacker cranes differs greatly. In the series structure, adjacent cabinets in the same cabinet have the same current when the battery is formed, and the process time of the two pallets is often the same, so the implementation of double entry and double exit of pallets is relatively simple. In the parallel structure, adjacent cabinets have different current when the battery is formed, so the two pallets of batteries cannot be completed synchronously in the formation / capacity separation process time. Therefore, traditional parallel structure equipment usually adopts a double stacker crane arrangement, that is, two single-station stacker cranes are configured in the same aisle. Although it meets the efficiency requirements, it results in a great waste of cost and space. Summary of the Invention

[0005] Based on the technical problems existing in the background technology, the present invention proposes a multi-pallet simultaneous formation method, which improves the formation conveying efficiency and reduces the production line area and logistics costs.

[0006] The present invention proposes a multi-pallet simultaneous formation method, comprising the following steps:

[0007] At least two cabinet points are set in the same formation cabinet, and all cabinet points in the same formation cabinet are connected in series.

[0008] During the outbound process of the formation container, after the formation of all containers in the same formation container is completed, the stacker crane moves to the position of the formation container and performs the task of simultaneously picking up pallets with both forks, transferring all pallets in the formation container to the waiting position of the outbound logistics line at the same time, and the status of the formation container storage position is released to empty.

[0009] During the outbound process from the formation container, all the cabinet points in the formation container are empty. The stacker crane moves to the waiting position of the inbound logistics line, picks up all the pallet batteries on the waiting position of the inbound logistics line in one go, and goes to the formation container to put the pallet batteries in one go.

[0010] Furthermore, when two cabinet points are set in the same formation cabinet, the center distance between adjacent pallet cars of the stacker crane is L1, the center distance between adjacent cabinet points in the formation cabinet is L2, the center distance between adjacent waiting positions of the outbound logistics line is L3, and the center distance between adjacent waiting positions of the inbound logistics line is L4. Let L1 = L2 = L3 = L4.

[0011] Furthermore, the logistics line is set up in two layers: the upper layer is the outbound logistics line and the lower layer is the inbound logistics line. The waiting positions for the outbound logistics line are located on the upper layer, and the waiting positions for the inbound logistics line are located on the lower layer.

[0012] Furthermore, given that all cabinet points in the formation cabinet are connected in series, when the formation cabinet sends a fault signal for a cabinet point and requests a change of storage location, the specific steps include the following:

[0013] The stacker crane proceeds to the faulty storage location to simultaneously use both forks to pick up the pallet and remove it.

[0014] By communicating with all formation cabinets through WCS, information on cabinet points that are empty in the formation cabinets is obtained, and the retrieved items are dragged and dropped to the formation cabinet where all cabinet points are empty, thus completing the warehouse exchange operation.

[0015] A method for simultaneous multi-pallet conversion includes the following steps:

[0016] At least two cabinet points are set up in the same formation cabinet, and all cabinet points in the same formation cabinet are set up in parallel.

[0017] During the outbound process of the forming container, after one container in the same forming container has completed forming, if other containers have completed forming within the waiting time, the stacker crane moves to the forming container position and performs a simultaneous pallet picking task at the container where forming has been completed. The formed pallets in the forming container are simultaneously transferred to the waiting position of the outbound logistics line, and the corresponding storage location on the forming container is released to an empty state. If no other containers have not completed forming within the waiting time, the stacker crane moves to the forming container position and performs a single fork pallet picking task, transferring the formed containers to the waiting position of the outbound logistics line, and the corresponding storage location on the forming container is released to an empty state.

[0018] During the warehousing process of the formation cabinet, if one cabinet point in the same formation cabinet is empty and receives a loading request, and during the waiting time, if other cabinet points are empty and receive loading requests, the stacker crane moves to the waiting position of the warehousing logistics line, picks up the pallet of batteries at once, and proceeds to the formation cabinet, placing the pallet of batteries into the empty cabinet point at once. If, during the waiting time, other cabinet points do not receive loading requests, the stacker crane moves to the waiting position of the warehousing logistics line, picks up one pallet of batteries at a time, and proceeds to the formation cabinet, placing the pallet of batteries into the corresponding cabinet point of the formation cabinet.

[0019] Furthermore, when two cabinet points are set in the same formation cabinet, the center distance between adjacent pallet cars of the stacker crane is L1, the center distance between adjacent cabinet points in the formation cabinet is L2, the center distance between adjacent waiting positions of the outbound logistics line is L3, and the center distance between adjacent waiting positions of the inbound logistics line is L4. Let L1 = L2 = L3 = L4.

[0020] Furthermore, considering that all cabinets in the formation cabinet are connected in parallel, when the formation cabinet sends a fault signal for a single cabinet point requesting a change of storage location, the specific steps include the following:

[0021] The stacker crane proceeds to the faulty storage location to perform forklift operations and retrieve the pallet;

[0022] By communicating with all formation cabinets through WCS, information on cabinet points with empty status in the formation cabinet is obtained, and it is determined whether there is a cabinet point with an empty status among all cabinet points in the formation cabinet.

[0023] If so, the retrieved pallet will be transferred to the empty counter to complete the warehouse exchange.

[0024] If not, the retrieved pallet will be transferred to another empty counter to complete the warehouse exchange.

[0025] Furthermore, when all cabinet points in the formation cabinet are connected in parallel, the formation cabinet is periodically reset to zero, specifically as follows:

[0026] After the formation cabinet has been running for a period of time, the time difference between the outbound and inbound times of all cabinet points in the formation cabinet is determined. When the time difference exceeds the set time threshold, the formation cabinet will no longer perform new inbound tasks until all cabinet points in the formation cabinet are empty before the task is executed.

[0027] The advantages of the multi-pallet simultaneous formation method provided by this invention are as follows: The multi-pallet simultaneous formation method provided in the structure of this invention, through the introduction of a dual-station independently extendable forklift stacker and the optimization of the scheduling logic of the formation / capacity separation equipment system, enables the stacker to transport all pallets or one pallet at one time according to the task situation, which meets the requirements of double-in double-out and single-in single-out tasks based on different formation / capacity separation structure designs. Compared with the traditional single fork docking form, this invention improves the formation conveying efficiency and reduces the production line area occupied and logistics cost investment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 The flowchart for the inbound and outbound process of the formation cabinet when the two cabinet points in the formation cabinet are connected in series.

[0030] Figure 3 The flowchart for the inbound and outbound process of the formation cabinet when the two cabinet points in the formation cabinet are connected in parallel.

[0031] Figure 4 This is a flowchart of the process for changing storage points when two storage points in the formation cabinet are connected in parallel, and a cabinet change is required during the formation process due to a cabinet failure.

[0032] Among them, 1-formation cabinet, 2-stall crane, 3-outbound logistics line, 4-inbound logistics line, 5-outbound logistics line waiting position, 6-inbound logistics line waiting position, 7-cabinet point. Detailed Implementation

[0033] 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.

[0034] The formation device for achieving simultaneous formation includes a formation cabinet 1, a stacker crane 2, an outbound logistics line 3, and an inbound logistics line 4. Each formation cabinet 1 includes at least two cabinet points 7. The outbound logistics line 3 and the inbound logistics line 4 are respectively connected to the formation cabinet 1. The stacker crane 2 is located between the outbound logistics line 3 and the inbound logistics line 4. This formation device can realize the simultaneous entry and exit of dual-pallet cells under different circuit design structures of formation equipment.

[0035] When two storage points 7 are set in the same formation container 1, the forks in the two cars of the stacker crane 2 can be independently extended and retracted. The center distance between the pallets in the two cars of the stacker crane 2 is L1, the center distance between the two storage points 7 in the formation container 1 is L2, the center distance between the two waiting positions in the outbound logistics line 3 is L3, and the center distance between the two waiting positions in the inbound logistics line 4 is L4. Let L1 = L2 = L3 = L4. Similarly, when three storage points 7 are set in the same formation container 1, the stacker crane 2 has 3 cars, and the adjacent 3... The center distance between the pallets in the elevator car is L1, the center distance between three adjacent cabinet points 7 in the formation cabinet 1 is L2, the center distance between three adjacent waiting positions in the outbound logistics line 3 is L3, and the center distance between three adjacent waiting positions in the inbound logistics line 4 is L4. L1 = L2 = L3 = L4 is set. That is to say, the number of cabinet points 7 in the same formation cabinet 1, the number of elevator cars in the stacker crane 2, the number of waiting positions on the outbound logistics line 3, and the number of waiting positions on the inbound logistics line 4 are corresponding.

[0036] like Figures 1 to 4 As shown, a method for simultaneous formation of multiple pallets is used for simultaneous formation of the cabinet points 7 in the formation cabinet 1 under both a series connection structure and a parallel connection structure.

[0037] (A) When at least two cabinet points 7 are set in the same formation cabinet 1, and all cabinet points 7 in the same formation cabinet 1 are connected in series; the storage location information of all cabinet points 7 in the same formation cabinet 1 can be bound to the system to execute multiple-in, multiple-out tasks. When testing batteries, all cabinet points 7 in the formation cabinet 1 have the same input current, so the tray batteries of all cabinet points 7 are regarded as the same tray from the perspective of the formation circuit. Therefore, the trays of all cabinet points 7 enter the formation equipment at the same time, and the formation end time of the trays on all cabinet points 7 is consistent. The inbound and outbound process of the formation cabinet is as follows, under the series structure, as follows: Figure 2 As shown.

[0038] (a1) In the outbound process under the operation of stacker crane 2, after all the cabinet points 7 in the formation cabinet 1 have completed formation, they simultaneously send outbound signals to the WCS for all cabinet points 7. The WCS sends an outbound queuing task to stacker crane 2. When the task is received, stacker crane 2 goes to the location of the formation cabinet 1, completes the signal exchange with the formation cabinet 1, and executes the task of simultaneously picking up pallets. The storage position status of the formation cabinet 1 is released to an empty state, and the next inbound operation is carried out. After stacker crane 2 picks up multiple palletized goods, it transports and places them on the outbound logistics line waiting position 5 at the end of the formation cabinet 1, and then flows to the next process via the outbound logistics line 3.

[0039] (a2) In the warehousing process under the operation of stacker crane 2, after all cabinet points 7 in the same formation cabinet 1 are released from the empty state, a material loading request for all cabinet points 7 is sent to WCS. WCS transmits the material loading information to the warehousing logistics line 4 at the end of the formation cabinet. After the warehousing pallet is transferred to the warehousing logistics line waiting position 6 of the warehousing logistics line 4, and after all pallets are in place, the position information is fed back to WCS. WCS transmits the material loading task to stacker crane 2. When the queued task arrives, stacker crane 2 goes to warehousing logistics line 4, picks up multiple pallet batteries at once, and goes to the formation cabinet 1 to be warehoused. After successful signal interaction with the formation equipment, all pallet batteries are put in at once.

[0040] (B) When all cabinet points 7 in formation cabinet 1 are connected in parallel, all cabinet points 7 in the same formation cabinet 1 are independent storage locations. When testing batteries, the input current of all cabinet points 7 in formation cabinet 1 is inconsistent. Therefore, because complete consistency cannot be achieved during battery manufacturing, even if all tray batteries enter all cabinet points 7 of the formation cabinet 1 simultaneously, their formation completion time cannot be guaranteed to be consistent. Under the parallel structure, the entry and exit of batteries... Figure 3 As shown.

[0041] (b1) In the outbound process under the operation of stacker crane 2, after the formation of one of the cabinet points 7 of the formation cabinet 1 is completed, an outbound signal for one cabinet point is sent to WCS. WCS determines whether the adjacent cabinet point 7 in the formation cabinet 1 has issued an outbound request. If not, considering the equipment efficiency utilization rate of the formation equipment and the battery process, it cannot wait for too long in the open state. Based on the above two reasons, the scheduling system is designed to wait for all cabinet points to complete the formation. If the outbound task of the adjacent cabinet point exceeds the designed waiting time, WCS schedules stacker crane 2 to force the single fork pick-up task. After receiving the signal, stacker crane 2 queues and completes the outbound of a single cabinet point in the formation cabinet 1, and places the pallet on the waiting position 5 of the outbound logistics line at the end of the formation equipment. It is then transferred to the next process through the outbound logistics line 3. If the designed waiting time has not been reached, the outbound task of the cabinet point continues to wait until the adjacent cabinet point has the outbound conditions or the waiting time has been exceeded.

[0042] If the outbound task of an adjacent container is within the designed waiting time, it means that all containers 7 of the forming container 1 have completed forming. The WCS will issue the picking task to the stacker crane 2. When the task arrives, the stacker crane 2 will go to the location of the forming container 1, complete the signal exchange with the forming container 1, and then execute the task of simultaneously picking up the pallets with both forks. All storage locations of the forming container 1 will be released to an empty state, and the next inbound operation will proceed. After the stacker crane 2 picks up two pallets of goods, it will move and place them on the outbound logistics line waiting position 5 at the end of the forming container, and then transfer them to the next process via the outbound logistics line 3.

[0043] (b2) In the warehousing process under the stacker crane 2 operating condition, if all adjacent cabinets in the same formation cabinet 1 are empty or one of the adjacent cabinets 7 is empty, a single cabinet loading request is sent to the WCS. The WCS determines whether there is a loading request in the adjacent cabinets under the formation cabinet 1. If not, considering the efficiency utilization of the formation equipment, the scheduling system sets a waiting time for all cabinets to be ready for warehousing. If the warehousing task of an adjacent cabinet exceeds the designed waiting time, the WCS schedules the stacker crane 2 to the warehousing logistics line 4 in front of the formation cabinet 1 to forcibly execute a single forklift task, taking a pallet from the waiting position 6 of the warehousing logistics line and proceeding to the front of the formation cabinet 1. After completing the interaction with the formation process, the pallet of batteries is placed in the cabinet of the formation cabinet, completing the warehousing operation. If the waiting time has not been reached, the warehousing task of that cabinet continues to wait until the adjacent cabinet is ready for warehousing or the waiting time has been exceeded.

[0044] (C) Due to equipment malfunctions during the formation process, there may be instances where the container needs to be changed midway through the formation process.

[0045] (c1) For the formation cabinet 1 where all cabinet points 7 are connected in series, when the formation cabinet 1 sends a fault signal for cabinet point 7 and requests a change of storage location, the specific steps include the following: the stacker crane 2 goes to the faulty storage location to perform a pallet picking task and takes away the pallet; it communicates with all formation cabinets 1 through WCS to obtain the information of cabinet points 7 in formation cabinet 1 that are empty, and transfers the taken-away pallet to the formation cabinet 1 where all cabinet points 7 are empty, thus completing the storage change operation.

[0046] (c2) Since all cabinet points 7 in the formation cabinet 1 are connected in parallel, after a cabinet point fails, a warehouse replacement task for that cabinet point should be executed, and priority should be given to matching cabinet points with one or more adjacent cabinet points that are vacant for warehouse replacement, specifically:

[0047] When the formation container 1 sends a fault signal for a single container point 7 and requests a change of storage location, the specific steps are as follows: The formation container 1 sends a fault signal for a single container point and requests a change of storage location. The WCS dispatches the stacker crane 2 to the new storage location, executes a single fork task, and removes the pallet. The WCS communicates with the formation equipment to obtain the empty container point information in the formation container 1 and determines whether there is an empty container point 7 among all the container points 7 in the formation container 1. If there is, it is placed in that empty container point. If not, it is placed in one of the empty locations among all the empty container points in other formation containers 1, thus completing the storage change operation.

[0048] When the same formation container 1 sends multiple fault signals from container points 7 and requests a change of storage location, the specific steps are as follows: The formation container 1 sends multiple fault signals from container points and requests a change of storage location. The WCS dispatches the stacker crane 2 to the new storage location, executes the multi-fork task, and removes the pallet. The WCS communicates with the formation equipment to obtain the empty container point information in the formation container 1 and determines whether there are multiple empty container points 7 (empty container points 7 are the same as faulty container points 7) among all container points 7 in the formation container 1. If there are, the pallet is placed in the empty container point. If not, the pallet is placed in one of the designated positions among all empty container points of other formation containers 1, thus completing the storage change operation.

[0049] (D) Based on the above, since all the racks of batteries in the parallel connection structure of all racks 7 in the formation cabinet 1 cannot be simultaneously loaded and unloaded, if the system is not adjusted, the number of racks performing single-fork tasks will increase over time, thus affecting the operating efficiency of the stacker crane 2. Therefore, it is required that the formation cabinet 1 be periodically reset. After the formation cabinet 1 has been running for a period of time, the time difference between the outbound and inbound times of all racks 7 in the formation cabinet 1 is determined. When the time difference exceeds a set time threshold, the formation cabinet 1 will no longer perform new inbound tasks until all racks 7 in the formation cabinet 1 are empty before executing a task.

[0050] This multi-pallet simultaneous formation method, through the introduction of a dual-station independently extendable fork stacker and the optimization of the scheduling logic of the formation / capacity separation equipment system, enables the stacker to transport all pallets or one pallet at a time according to the task situation. It meets the requirements of double-in double-out and single-in single-out tasks based on different formation / capacity separation structure designs. Compared with the traditional single fork docking form, this invention improves the formation conveying efficiency and reduces the production line area and logistics costs.

[0051] The implementation of the dual-input dual-output mode can match the formation cabinet under different circuit designs, including formation cabinets under series and parallel designs, and can also meet the requirements of single-input single-output in case of abnormalities or formation cabinet failures.

[0052] 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 method for simultaneous formation of multiple trays, characterized in that, Includes the following steps: At least two cabinet points (7) are set in the same formation cabinet (1), and all cabinet points (7) in the same formation cabinet (1) are set in parallel; During the outbound process of the forming cabinet (1), after the forming of one cabinet point (7) in the same forming cabinet (1) is completed, if other cabinet points (7) are completed within the waiting time, the stacker crane (2) moves to the position of the forming cabinet (1) and performs the task of simultaneously picking up multiple pallets at the cabinet point (7) where the forming is completed. The formed pallets in the forming cabinet (1) are simultaneously transferred to the waiting position (5) of the outbound logistics line. The corresponding storage position on the forming cabinet (1) is released to an empty state. If no other cabinet point (7) is completed within the waiting time, the stacker crane (2) moves to the position of the forming cabinet (1) and performs the task of picking up one pallet with a single fork. The formed pallets are transferred to the waiting position (5) of the outbound logistics line. The corresponding storage position on the forming cabinet (1) is released to an empty state. During the warehousing of the formation cabinet (1), if a cabinet point (7) in the same formation cabinet (1) is empty and receives a loading request, and during the waiting time, if other cabinet points (7) are empty and receive a loading request, then the stacker crane (2) moves to the waiting position (6) of the warehousing logistics line, picks up multiple pallet batteries at once, and goes to the formation cabinet (1), and puts the pallet batteries into the empty cabinet point (7) at once. During the waiting time, if other cabinet points (7) do not receive a loading request, then the stacker crane (2) moves to the waiting position (6) of the warehousing logistics line, picks up one pallet battery at a time, and goes to the formation cabinet (1), and puts the pallet batteries into the corresponding cabinet point (7) of the formation cabinet (1). Specifically, the formation cabinet (1) is periodically reset to zero, as follows: After the formation cabinet (1) has been running for a period of time, the time difference between the outbound time and the inbound time of all cabinet points (7) in the formation cabinet (1) is calculated. When the time difference exceeds the set time threshold, the formation cabinet (1) will no longer perform new inbound tasks until all cabinet points (7) in the formation cabinet (1) are empty before the task is executed.

2. The multi-pallet simultaneous formation method according to claim 1, characterized in that, When two cabinet points (7) are set in the same formation cabinet (1), the center distance between adjacent car pallets of the stacker crane (2) is L1, the center distance between adjacent cabinet points (7) in the formation cabinet (1) is L2, the center distance between adjacent waiting positions of the outbound logistics line (3) is L3, and the center distance between adjacent waiting positions of the inbound logistics line (4) is L4. Set L1=L2=L3=L4.

3. The multi-pallet simultaneous formation method according to claim 1, characterized in that, Since all cabinet points (7) in the formation cabinet (1) are connected in parallel, when the formation cabinet (1) sends a fault signal for a single cabinet point (7) and requests a change of storage location, the specific steps include the following: The stacker crane (2) goes to the faulty storage location to perform a single fork task and picks up the pallet; By communicating with all formation cabinets (1) through WCS, information on cabinet points (7) in formation cabinet (1) that are empty is obtained, and it is determined whether there is a cabinet point (7) in all cabinet points (7) in formation cabinet (1) that is empty. If so, the retrieved pallet will be transferred to the empty counter (7) to complete the warehouse exchange operation; If not, the retrieved pallet will be transferred to another empty cabinet (7) of the other formation cabinet (1) to complete the warehouse transfer operation.

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