A battery plate stacking device with a buffer storage function

Abstract

The present invention discloses a battery plate stacking device with a buffer storage function, which includes a frame. On the frame, there are provided a buffer conveyor for conveying stacks of battery plates, a pallet conveyor for storing stacks of battery plates, pallet elevators arranged on both sides of the pallet conveyor, a palletizing robot arranged above the buffer conveyor and the pallet conveyor for transferring stacks of battery plates, and a separator robot for transporting separators. The present invention transports stacks of battery plates through the buffer conveyor, and the palletizing robot stacks the stacks of battery plates placed on the buffer conveyor onto the separators on the pallet conveyor. The separator robot covers another separator on the separator covered with stacks of battery plates for stacking. The pallet conveyor and the pallet elevators transport the stacks of battery plates, thereby achieving the purpose of full-automatic stacking, fully realizing the automation of plate stacking, and greatly improving the production efficiency of plates.

Description

Technical Field

[0001] The present invention relates to the technical field of plate stacking equipment, and in particular to a lead-acid battery plate stacking device with a buffer storage function. Background Art

[0002] Plates play a role in carrying active substances and conducting electricity in lead-acid battery plates, and are an important part of the battery. Continuous plates are composed of multiple columns and rows of single plates connected together. The traditional plate cutting and stacking method is to cut the continuous plates into single plates at one time by a rotary shear, and then stack the dispersed single plates by means of vibration adsorption and other means. However, the effect of this cutting and stacking is not good, and the stacking is not neat, especially for small sealed plates.

[0003] Therefore, the applicant applied for a continuous plate cutting and stacking process and device (patent number: CN202010290761.0), which improves the effect of plate cutting and stacking by changing the cutting and stacking process and device, and avoids the defect of uneven plate stacking. However, subsequent manual stacking and other work are still required, which is time-consuming and laborious. At the same time, during the production process of plates, when the equipment on the production line fails or stops unexpectedly, if the plates in the production line dryer cannot be output from the drying cellar in time, the plates will be scrapped. Therefore, there is an urgent need for a lead-acid battery plate stacking device with a buffer storage function. Summary of the Invention

[0004] The purpose of the present invention is to provide a lead-acid battery plate stacking device with a buffer storage function to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the present invention provides the following solution: The present invention provides a lead-acid battery plate stacking device with a buffer storage function, including a frame, on which a buffer conveyor for conveying lead-acid battery plate stacks, a pallet conveyor for storing lead-acid battery plate stacks, pallet elevators arranged on both sides of the pallet conveyor, a palletizing robot arranged above the buffer conveyor and the pallet conveyor for transferring lead-acid battery plate stacks, and a separator robot arranged on one side of the pallet conveyor for transporting separators are provided.

[0006] Preferably, the buffer conveyor includes at least 2 parallel conveyor belts, and a grasping gap is provided between adjacent conveyor belts; position induction sensors are provided at both the inlet and outlet of the conveyor belts of the buffer conveyor, and a plate stack induction sensor is provided at the inlet of the conveyor belts of the buffer conveyor.

[0007] Preferably, two sets of transverse slide rails parallel to the conveying direction of the battery plate stacks are fixedly arranged on the rack. The palletizing manipulator includes a first longitudinal robotic arm slidably connected between the two sets of transverse slide rails. A first vertical robotic arm is slidably connected to the first longitudinal robotic arm, and the first vertical robotic arm is connected to a robotic hand that can vertically lift and lower.

[0008] Preferably, the robotic hand includes a lifting plate connected to the first vertical robotic arm. A fixed claw is fixedly connected below the lifting plate. Telescopic claws are slidably connected to both sides of the fixed claw. A cylinder is connected between the telescopic claw and the fixed claw. Tooth slots are provided on the bottom surfaces of the fixed claw and the telescopic claws.

[0009] Preferably, the partition manipulator includes a second longitudinal robotic arm slidably arranged between the two sets of transverse slide rails. A second vertical robotic arm is slidably arranged on the second longitudinal robotic arm. The second vertical robotic arm is connected to a vacuum suction cup hand that can vertically lift and lower. The vacuum suction cup hand includes no less than two sets of vacuum suction cups.

[0010] Preferably, the pallet conveyor includes two sets of longitudinal guide rails fixedly arranged on the rack. The two sets of longitudinal guide rails are arranged perpendicular to the conveying direction of the battery plate stacks. A trolley is slidably connected between the two sets of longitudinal guide rails. The trolley is driven by a cylinder. The two sets of longitudinal guide rails are divided into three areas, including a palletizing station in the middle and pallet stations on both sides of the palletizing station. A pallet lifting mechanism is fixedly arranged between the two sets of longitudinal guide rails. The pallet lifting mechanism is arranged below the palletizing station. A partition for placing the battery plate stacks is arranged above the pallet lifting mechanism.

[0011] Preferably, the pallet lifting mechanism includes two sets of rotating rod assemblies hinged in the middle and a lifting frame arranged above the two sets of rotating rod assemblies. Each rotating rod assembly includes two symmetrically arranged rotating rods hinged to each other. One end of each of the two rotating rods is connected to the lifting frame. One rotating rod is hinged to the lifting frame, and the other rotating rod is slidably connected to the lifting frame. A chute for the lifting frame to slide is provided on the lifting frame. The other ends of the two rotating rods are respectively connected to the corresponding rotating rods on the other side through connecting rods. A cylinder is arranged between the two connecting rods. One connecting rod is axially connected to the rack, and the other connecting rod is slidably connected to the rack.

[0012] Preferably, the pallet stations are divided into an empty pallet station and a full pallet station. First pallet positioning blocks are respectively arranged on both sides of the empty pallet station and the full pallet station of the longitudinal guide rails. Second pallet positioning blocks corresponding to the first pallet positioning blocks are respectively fixedly arranged on both sides of the bottom end of the trolley.

[0013] Preferably, the two pallet elevators are respectively arranged on one side of the empty pallet station and the full pallet station; each pallet elevator includes two groups of vertical guide rails fixedly arranged on the frame, a forklift is slidably arranged between the two groups of vertical guide rails, two groups of forks are slidably connected to the forklift, a telescopic cylinder is connected between each group of forks and the forklift, a support plate is fixedly arranged on the forks, and the forks are vertically arranged with the longitudinal guide rails.

[0014] The present invention discloses the following technical effects: The present invention transports the cut or uncut stacks of battery plates through a buffer conveyor, enabling the buffer conveyor to carry more stacks of battery plates. The stacking robot stacks the stacks of battery plates placed on the buffer conveyor onto the partitions on the pallet conveyor. When the partitions are filled with stacks of battery plates, another partition is covered on the partition filled with stacks of battery plates by a partition manipulator for stacking until the longitudinal quantity of the stacks of battery plates reaches the requirement. The pallet conveyor and the pallet elevator are used to transport the stack of battery plates, thereby achieving the purpose of full-automatic stacking, fully realizing the automation of plate stacking, and greatly improving the production efficiency of the plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the battery plate stacking device of the present invention;

[0017] Figure 2 It is a front view of the battery plate stacking device of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the buffer conveyor of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the pallet elevator of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the pallet conveyor of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the pallet conveyor from another perspective of the present invention;

[0022] Figure 7 It is a schematic structural diagram of the partition manipulator of the present invention;

[0023] Figure 8Schematic structural diagram of the palletizing robot of the present invention;

[0024] Figure 9 Schematic structural diagram of the robot gripper of the present invention.

[0025] Among them, 1 is the frame, 11 is the transverse slide rail, 2 is the buffer conveyor, 21 is the conveyor belt, 22 is the grasping gap, 3 is the pallet conveyor, 31 is the longitudinal guide rail, 311 is the first pallet positioning block, 312 is the second pallet positioning block, 32 is the trolley, 33 is the rotating rod assembly, 331 is the rotating rod, 332 is the connecting rod, 34 is the lifting frame, 341 is the chute, 4 is the pallet elevator, 41 is the vertical guide rail, 42 is the fork frame, 43 is the forklift, 44 is the telescopic cylinder, 45 is the support plate, 5 is the palletizing robot, 51 is the first longitudinal robotic arm, 52 is the first vertical robotic arm, 53 is the robot gripper, 531 is the fixed claw, 532 is the telescopic claw, 533 is the claw plate, 534 is the lifting plate, 6 is the partition robot, 61 is the second longitudinal robotic arm, 62 is the second vertical robotic arm, 63 is the vacuum suction cup gripper, 7 is the stack of battery plates, 8 is the partition, and 9 is the pallet. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0028] Refer to Figures 1-9, the present invention provides a battery plate stacking device with a buffer storage function, including a frame 1, on which a buffer conveyor 2 for conveying battery plate stacks 7, a pallet conveyor 3 for storing battery plate stacks 7, pallet elevators 4 arranged on both sides of the pallet conveyor 3, a palletizing robot 5 arranged above the buffer conveyor 2 and the pallet conveyor 3 for transferring battery plate stacks 7, and a separator robot 6 arranged on one side of the pallet conveyor 3 for transporting separators 8. The buffer conveyor 2 conveys the cut or uncut battery plate stacks 7. The buffer conveyor 2 can carry more battery plate stacks 7, and the palletizing robot 5 stacks the battery plate stacks 7 placed on the buffer conveyor 2 onto the pallets 9 on the pallet conveyor 3. When the pallet 9 is full of battery plate stacks 7, a separator 8 is covered on the pallet 9 full of battery plate stacks 7 by the separator robot 6 for stacking until the longitudinal quantity of the battery plate stacks 7 meets the requirement. The battery plate stack is transported by the pallet conveyor 3 and the pallet elevator 4, so as to achieve the purpose of full-automatic stacking, fully realize the automation of plate stacking, and greatly improve the production efficiency of the plates.

[0029] In a further optimized solution, the buffer conveyor 2 includes at least 2 parallel conveyor belts 21 arranged parallel to each other. The battery plate stacks 7 are placed on adjacent conveyor belts 21, and a grasping gap 22 is arranged between adjacent conveyor belts 21. The appropriate number of conveyor belts 21 is selected according to the needs of the production line. The conveyor belts 21 can move forward or backward. The conveyor belts 21 form a buffer storage for the previously processed battery plate stacks 7. When other equipment on the production line fails, the palletizing plates cannot be manually transferred in time, or other parts of the machine except the buffer storage machine fail, the buffer storage machine 2 will enter the storage mode, arrange the battery plate stacks 7 at equal intervals by intermittent movement according to the grasping requirements of the palletizing robot 5 and store them on the conveyor belts 21. After the fault is eliminated, the grasping and palletizing of the palletizing robot 5 cooperate with the reverse intermittent movement of the buffer storage machine 2 to recall the temporarily stored battery plate stacks and perform palletizing, thus maximizing the avoidance of plate scrapping.

[0030] Position induction sensors are arranged at both the inlet and outlet of the conveyor belt 21 of the buffer conveyor 2, and a plate stack induction sensor is arranged at the inlet of the conveyor belt 21 of the buffer conveyor 2. The plate stack induction sensor at the front end of the buffer conveyor 2 can sense whether there is a battery plate stack 7 conveyed by the previous equipment; the position induction sensor at the front end of the buffer conveyor 2 can sense the position of the battery plate stack 7 and control the conveyor belt 21 to stop conveying so as to position the battery plate stack 7 or arrange it at equal intervals. The position induction sensor at the end of the buffer storage machine 2 can sense the full state of the buffer storage.

[0031] For a further optimized solution, two sets of transverse slide rails 11 parallel to the conveying direction of the battery plate stack 7 are fixedly arranged on the rack 1. The palletizing manipulator 5 includes a first longitudinal robotic arm 51 slidably connected between the two sets of transverse slide rails 11. A first vertical robotic arm 52 is slidably connected to the first longitudinal robotic arm 51, and the first vertical robotic arm 52 is connected to a robotic hand 53 that can be vertically lifted and lowered. The first longitudinal robotic arm 51 and the first vertical robotic arm 52 are respectively controlled by servo motors and lead screws to slide along the transverse slide rails 11 and the first longitudinal robotic arm 51 respectively; the robotic hand 53 can move vertically up and down along the first vertical robotic arm 52, thus realizing the three-way movement of the robotic hand 53 and ensuring that the robotic hand 53 can easily grasp the battery plate stack 7.

[0032] For a further optimized solution, the robotic hand 53 includes a lifting plate 534 connected to the first vertical robotic arm 52. A fixed claw 531 is fixedly connected below the lifting plate 534. Telescopic claws 532 are slidably connected to both sides of the fixed claw 531 on the lifting plate 534. A cylinder is connected between the telescopic claws 532 and the fixed claw 531. Claw plates 533 with tooth gaps are arranged on the bottom surfaces of the fixed claw 531 and the telescopic claws 532. The width of the claw plates 533 is smaller than the grasping gap 22, ensuring that the claw plates 533 can be inserted into the grasping gap 22 to prevent the robotic hand 53 from affecting the movement of the conveyor belt 21, so that the battery plate stack 7 can be continuously transported by the conveyor belt 21.

[0033] For a further optimized solution, the partition manipulator 6 includes a second longitudinal robotic arm 61 slidably arranged between the two sets of transverse slide rails 11. A second vertical robotic arm 62 is slidably arranged on the second longitudinal robotic arm 61. The second vertical robotic arm 62 is connected to a vacuum suction cup robotic hand 63 that can be vertically lifted and lowered. The vacuum suction cup robotic hand 63 includes no less than two sets of vacuum suction cups. The vacuum suction cup robotic hand 63 can move up and down along the second vertical robotic arm 62. The second longitudinal robotic arm 61 and the second vertical robotic arm 62 are respectively controlled by servo motors and lead screws to slide along the transverse slide rails 11 and the second longitudinal robotic arm 61 respectively, that is, the vacuum suction cup robotic hand 63 can realize three-way movement, and the partition 8 is grasped and released by the vacuum suction cups 63.

[0034] Alternatively, the second longitudinal robotic arm 61 has no drive system. The second longitudinal robotic arm 61 is provided with a clutch mechanism. The clutch mechanism is driven by a cylinder to control the engagement and disengagement of the slider of the second longitudinal robotic arm 61 and the slider of the first longitudinal robotic arm 51, and is driven by a single servo motor.

[0035] For a further optimized solution, the pallet conveyor 3 includes two sets of longitudinal guide rails 31 fixedly arranged on the frame 1. The two sets of longitudinal guide rails 31 are arranged perpendicular to the conveying direction of the battery plate stack 7. A sliding carriage 32 is slidably connected between the two sets of longitudinal guide rails 31, and the sliding carriage 32 is driven by a cylinder. The two sets of longitudinal guide rails 31 are divided into three areas, including a palletizing station in the middle and pallet stations on both sides of the palletizing station. A pallet lifting mechanism is fixedly arranged between the two sets of longitudinal guide rails 31. The pallet lifting mechanism is arranged below the palletizing station, and an end plate 9 for placing the plate stack is arranged above the pallet lifting mechanism. The pallet 9 is transported by the sliding carriage 32, and the pallet 9 mounted on the sliding carriage 32 is lifted by the pallet lifting mechanism to separate the pallet 9 from the sliding carriage 32, ensuring that there is a pallet 9 for stacking the battery plate stack 7.

[0036] For a further optimized solution, the pallet lifting mechanism includes two sets of rotating rod assemblies 33 hinged in the middle and a lifting frame 34 arranged above the two sets of rotating rod assemblies 33. The pallet 9 is arranged on the lifting frame 34. Each set of rotating rod assemblies 33 includes two rotating rods 331 that are hinged to each other and symmetrically arranged. One end of each of the two rotating rods 331 is connected to the lifting frame 34. One rotating rod 331 is hinged to the lifting frame 34, and the other rotating rod 331 is slidably connected to the lifting frame 34. A sliding groove 341 for the lifting frame 34 to slide is formed on the lifting frame 34. The other ends of the two rotating rods 331 are respectively connected to the corresponding rotating rods 331 on the other side through connecting rods 332. A cylinder is arranged between the two connecting rods 332. One connecting rod 332 is axially connected to the frame 1, and the other connecting rod 332 is slidably connected to the frame 1. By controlling the same sides of the two connecting rods 332 to approach or move away from each other, the other sides approach or move away from each other. Since the lower ends are in the same horizontal plane, the lifting plate also moves up and down without skew, thereby realizing the up and down movement of the pallet 9. At the same time, since the pallet lifting mechanism is arranged between the two sets of longitudinal guide rails 31 and the sliding carriage 32 is arranged on the slide rail, the pallet lifting mechanism does not affect the movement of the sliding carriage 32, ensuring that there can be a pallet 9 on the pallet lifting mechanism to receive the battery plate stack 7 while the sliding carriage 32 is moving.

[0037] For a further optimized solution, the pallet stations are divided into an empty pallet station and a full pallet station. First pallet positioning blocks 311 are respectively arranged on both sides of the empty pallet station and the full pallet station of the longitudinal guide rails 31. Second pallet positioning blocks 312 corresponding to the first pallet positioning blocks 311 are respectively fixedly arranged on both sides of the bottom end of the sliding carriage 32. The lengths of the empty pallet station and the full pallet station are the same, and the length of the sliding carriage 32 is the sum of the lengths of two adjacent stations. The sliding carriage 32 is driven by a cylinder to switch between different stations, but there is always a pallet 9 in the full pallet station.

[0038] For a further optimized solution, two pallet elevators 4 are respectively arranged on one side of the empty pallet station and the full pallet station. The empty pallet station and the full pallet station can be interchanged, and they are not fixed on a certain side of the longitudinal guide rail 31. The pallet elevator 4 includes two groups of vertical guide rails 41 fixedly arranged on the frame 1. A fork frame 42 is slidably arranged between the two groups of vertical guide rails 41. The fork frame 42 is driven to move up and down by a hydraulic cylinder. Two groups of forklifts 43 are slidably connected to the fork frame 42. A telescopic cylinder 44 is connected between each group of forklifts 43 and the fork frame 42. A support plate 45 is fixedly arranged on the forklift 43. The forklift 43 is vertically arranged with the longitudinal guide rail 31. The telescopic cylinder 44 can be used to make the two groups of forklifts 43 approach or move away from each other, and the two groups of forklifts 43 are driven to lift and lower by the hydraulic cylinder. On the pallet elevator 4 on one side of the empty pallet station, there are several pallets 9 without loaded battery plate stacks 7. On the pallet elevator 4 on one side of the full pallet station, there is no pallet 9 or there is a pallet 9 that has been loaded with battery plate stacks 7. A gap for inserting the support plate 45 is arranged between two adjacent pallets up and down.

[0039] Working process:

[0040] Step 1: The conveyor belt 21 on the buffer conveyor 2 transports the battery plate stack 7, and the position induction sensor and the plate stack induction sensor are used to sense and monitor the battery plate stack 7.

[0041] Step 2: Move the trolley 32 to the empty pallet station and the palletizing station. Several pallets 9 are inserted and supported on the two groups of forklifts 43 of the pallet elevator 4 on one side of the empty pallet station. Place several pallets 9 on the trolley 32. By controlling the two groups of forklifts 43 to move away from each other (fork opening), the two groups of forklifts 43 are separated from the pallet 9, and then the two groups of forklifts 43 are lifted to the lower part of the second-to-last pallet 9, and the two groups of forklifts 43 are controlled to approach each other (fork closing) until the two groups of forklifts 43 are inserted under the second-to-last pallet 9, and then the forklifts 43 are lifted to stack the empty pallets 9 on the trolley 32.

[0042] Step 3: Control the trolley to move to the palletizing station and the full pallet station, and control the pallet lifting mechanism to rise to separate the pallet 9 stacked on the trolley 32 in Step 2 from the trolley 32.

[0043] Step 4: The battery plate stack 7 on the conveyor belt 21 is evenly laid on the pallet 9 by the palletizing manipulator 5. When the battery plate stack 7 fills the pallet 9, the partition manipulator 6 grabs the partition 8 on one side and lays it above the battery plate stack 7 layer. Continue to lay the battery plate stack 7 above the partition 8 until the partition 8 is filled, and then continue to lay the partition 8 and the battery plate stack 7 until a specified number of battery plate stack 7 layers are laid on the pallet 9.

[0044] Step Five: While performing Step Four, execute Step Two;

[0045] Step Six: After the palletizing work of pallet 9 is completed, control the pallet lifting mechanism to lower, place the pallet 9 that has been loaded with the stack 7 of battery plates on the trolley 32, control the trolley 32 to move to the palletizing station and the full-pallet station. After the pallet lifting mechanism lifts the empty pallet 9 placed on the trolley, execute Step Four; at the same time, the two sets of forklifts 43 on the pallet lifter 4 on one side of the full-pallet station descend, place the pallet 9 above their forklifts 43 on the fully loaded pallet 9 on the trolley 32, control the two sets of forklifts 43 to move to the bottom of the fully loaded pallet, and lift all the fully loaded pallets 9;

[0046] Step Seven: Continuously execute Step Two and Step Six.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0048] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A battery plate stacking device with a buffer storage function, characterized in that: It includes a frame (1), on which a buffer conveyor (2) for conveying the battery plate stack (7), a pallet conveyor (3) for storing the battery plate stack (7), pallet elevators (4) arranged on both sides of the pallet conveyor (3), a palletizing manipulator (5) arranged above the buffer conveyor (2) and the pallet conveyor (3) for transferring the battery plate stack (7), and a separator manipulator (6) arranged on one side of the pallet conveyor (3) for transporting separators (8) are provided; The buffer conveyor (2) includes at least two conveyor belts (21) arranged in parallel with each other. The battery plate stack (7) is placed on the adjacent conveyor belts (21), and a grasping gap (22) is provided between the adjacent conveyor belts (21); the conveyor belts (21) can move forward or backward, and the conveyor belts (21) form buffer storage for the previously processed battery plate stack (7). When other equipment on the production line fails, the palletizing of the battery plates fails to be manually transferred in time, or other parts of this machine except the buffer conveyor (2) fail, the buffer conveyor (2) will enter the storage mode, arrange the battery plate stack (7) at equal intervals through intermittent movement according to the grasping requirements of the palletizing manipulator (5) and store it on the conveyor belts (21). After the fault is eliminated, the grasping and palletizing of the palletizing manipulator (5) cooperate with the reverse intermittent movement of the buffer conveyor (2) to recall the temporarily stored battery plate stack (7) and perform palletizing; The buffer conveyor (2) is provided with position induction sensors at both the inlet and outlet of the conveyor belt (21), and a plate stack induction sensor is provided at the inlet of the conveyor belt (21) of the buffer conveyor (2); the plate stack induction sensor at the front end of the buffer conveyor (2) can sense whether there is a battery plate stack (7) conveyed by the previous equipment; the position induction sensor at the front end of the buffer conveyor (2) can sense the position of the battery plate stack (7) and control the conveyor belt (21) to stop conveying so that the battery plate stack (7) is positioned or arranged at equal intervals, and the position induction sensor at the end of the buffer conveyor (2) can sense the full state of the buffer storage; The pallet conveyor (3) includes two sets of longitudinal guide rails (31) fixedly arranged on the rack (1), and the two sets of longitudinal guide rails (31) are arranged perpendicular to the conveying direction of the battery plate stack (7); a trolley (32) is slidably connected between the two sets of longitudinal guide rails (31), and the trolley (32) is driven by a cylinder; the two sets of longitudinal guide rails (31) are divided into three areas including a palletizing station arranged in the middle and pallet stations arranged on both sides of the palletizing station. A pallet lifting mechanism is fixedly arranged between the two sets of longitudinal guide rails (31), the pallet lifting mechanism is arranged below the palletizing station, and a pallet (9) for placing the battery plate stack (7) is arranged above the pallet lifting mechanism; the pallet (9) is transported by the trolley (32), and the pallet (9) mounted on the trolley (32) is lifted by the pallet lifting mechanism to separate the pallet (9) from the trolley (32), ensuring that there is one pallet (9) performing the stacking work of the battery plate stack (7). The pallet lifting mechanism is arranged between the two sets of longitudinal guide rails (31), the trolley (32) is arranged on the longitudinal guide rails (31), and the pallet lifting mechanism does not affect the movement of the trolley (32). While the trolley (32) is moving, there can be one pallet (9) on the pallet lifting mechanism for receiving the battery plate stack (7). The pallet stations are divided into an empty pallet station and a full pallet station. First pallet positioning blocks (311) are respectively arranged on both sides of the empty pallet station and the full pallet station of the longitudinal guide rails (31), and second pallet positioning blocks (312) corresponding to the first pallet positioning blocks (311) are respectively fixedly arranged on both sides of the bottom end of the trolley (32); the lengths of the empty pallet station and the full pallet station are the same, and the length of the trolley (32) is the sum of the lengths of two adjacent stations. The trolley (32) is driven by a cylinder to switch between different stations, but there is always one pallet (9) in the full pallet station. Two of the pallet elevators (4) are respectively arranged on one side of the empty pallet station and the full pallet station; the pallet elevator (4) includes two groups of vertical guide rails (41) fixedly arranged on the rack (1), a fork frame (42) is slidably arranged between the two groups of vertical guide rails (41), two groups of forklift forks (43) are slidably connected to the fork frame (42), a telescopic cylinder (44) is connected between each group of forklift forks (43) and the fork frame (42), a support plate (45) is fixedly arranged on the forklift fork (43), and the forklift fork (43) is perpendicularly arranged to the longitudinal guide rail (31); the two groups of forklift forks (43) can be moved closer to or away from each other through the telescopic cylinder (44), and the lifting of the two groups of forklift forks (43) is driven by a hydraulic cylinder. A number of pallets (9) not loaded with the stack of battery plates (7) are arranged on the pallet elevator (4) on one side of the empty pallet station, and there is no pallet (9) or there are pallets (9) already loaded with the stack of battery plates (7) on the pallet elevator (4) on one side of the full pallet station. A gap for inserting the support plate (45) is arranged between two adjacent pallets (9) up and down.

2. The battery plate stacking device with a buffer storage function according to claim 1, wherein: Two groups of transverse slide rails (11) parallel to the conveying direction of the stack of battery plates (7) are fixedly arranged on the rack (1). The palletizing robot (5) includes a first longitudinal robotic arm (51) slidably connected between the two groups of transverse slide rails (11), a first vertical robotic arm (52) is slidably connected to the first longitudinal robotic arm (51), and the first vertical robotic arm (52) is connected with a robotic hand (53) capable of vertical lifting and lowering.

3. The battery plate stacking device with a buffer storage function according to claim 2, characterized in that: The robotic hand (53) includes a lifting plate (534) connected to the first vertical robotic arm (52), a fixed claw (531) is fixedly connected below the lifting plate (534), telescopic claws (532) are slidably connected to both sides of the fixed claw (531) on the lifting plate (534), a cylinder is connected between the telescopic claw (532) and the fixed claw (531), and a claw plate (533) with tooth gaps is arranged on the bottom surfaces of the fixed claw (531) and the telescopic claw (532).

4. A battery plate stacking device with a buffer storage function according to claim 2, characterized in that: The partition robot (6) includes a second longitudinal robotic arm (61) slidably arranged between the two groups of transverse slide rails (11), a second vertical robotic arm (62) is slidably arranged on the second longitudinal robotic arm (61), the second vertical robotic arm (62) is connected with a vacuum suction cup hand (63) capable of vertical lifting and lowering, and the vacuum suction cup hand (63) includes not less than two groups of vacuum suction cups.

5. The battery plate stacking device with a buffer storage function according to claim 1, characterized in that: The pallet lifting mechanism includes two sets of rotatable rod assemblies (33) hinged in the middle and a lifting frame (34) arranged above the two sets of rotatable rod assemblies (33). Each set of rotatable rod assemblies (33) includes two rotatable rods (331) that are hinged to each other and symmetrically arranged. One end of each of the two rotatable rods (331) is connected to the lifting frame (34). One of the rotatable rods (331) is hinged to the lifting frame (34), and the other rotatable rod (331) is slidably connected to the lifting frame (34). A chute (341) for the sliding of the lifting frame (34) is formed on the lifting frame (34). The other ends of the two rotatable rods (331) are respectively connected to the correspondingly opposite rotatable rod (331) on the other side through a connecting rod (332). A cylinder is arranged between the two connecting rods (332). One of the connecting rods (332) is pivotally connected to the machine frame (1), and the other connecting rod (332) is slidably connected to the machine frame (1).

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