Battery cell stacking equipment

Abstract

The utility model provides battery cell stacking equipment which comprises a rack, a plurality of battery cells, a plurality of battery cells, a plurality of battery cells and a plurality of battery cells, the tray is movably arranged on the rack, and the tray can do reciprocating motion between the stacking area and the transferring area; the supporting strip is arranged on the tray and is used for supporting the battery cell; and the material claw assembly is movably arranged on the tray and used for grabbing the battery cells so as to place the battery cells on the supporting strips, and the material claw assembly can drive the battery cells in the longitudinal direction so that the battery cells can be separated from the supporting strips. According to the utility model, the wrapping film of the battery cell can be effectively prevented from being damaged due to friction between the battery cell and the supporting strip; meanwhile, after the battery modules are stacked and formed, the tray bears the battery modules to move to the transfer area from the stacking area so as to reach the next station, and compared with a traditional robot transfer mode, the risk that the battery modules fall in the transfer process is avoided, and meanwhile the transfer efficiency of the battery modules can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a cell stacking device. Background Technology

[0002] In existing cell stacking mechanisms, the bottom of the cells inevitably rubs against the support structure during the movement of cells along the length of the module. This can easily lead to damage to the cell coating and affect the quality of the module. At the same time, when the modules formed by cell stacking are transferred to the next work station by robots, there is a risk of the modules falling due to their large mass. Furthermore, the robot needs at least three processes to perform this step: loading, transferring, and unloading, resulting in low work efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery cell stacking device, which effectively reduces the possibility of damage to the coating of the battery cells during the stacking process, and facilitates the transportation of battery modules.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A battery cell stacking device includes: a frame having a stacking area and a transfer area; a tray movably disposed on the frame, the tray being capable of reciprocating between the stacking area and the transfer area; a support bar disposed on the tray for supporting the battery cells; and a gripper assembly movably disposed on the tray for gripping the battery cells and placing them on the support bar, the gripper assembly being capable of longitudinally driving the battery cells to detach them from the support bar.

[0006] According to a preferred embodiment, the feed claw assembly includes a bracket that is movable along the extension direction of the support bar. The bracket is provided with a gripping part for gripping a battery cell. The gripping part and / or the bracket are movable longitudinally so that the battery cell gripped by the gripping part is disengaged from the support bar.

[0007] According to a preferred embodiment, the claw assembly includes a bracket that is movable along the extension direction of the support bar, and the bracket is provided with a gripping part for gripping the battery cell; the tray is provided with a longitudinal plate that is movable along the extension direction of the support bar, and the bracket is assembled to the longitudinal plate and is movable longitudinally relative to the longitudinal plate.

[0008] According to a preferred embodiment, the tray is provided with a mounting column, the support bar is fixed to the tray by the mounting column, and there is an adjustment space between the support bar and the tray; the bracket extends into the adjustment space, and the gripping part includes two claws symmetrically arranged about the support bar, the two claws being able to move closer to or further away from each other.

[0009] According to a preferred embodiment, there are at least two gripping parts, which are spaced apart along the extension direction of the support bar, and adjacent gripping parts can move closer to or further away from each other.

[0010] According to a preferred embodiment, the gripping part further includes a base plate and two adapter plates corresponding to the two claws. The direction in which the two claws move closer or further apart is defined as a first direction. The base plate is mounted on the bracket, and the adapter plates are slidably connected to the base plate. The adapter plates move relative to the base plate along the first direction. The claws are slidably mounted on the adapter plates and move relative to the adapter plates along a second direction. Two limiting plates are provided on the adapter plates, and the claws are positioned between the two limiting plates. A buffer spring is pressed between the claws and at least one of the limiting plates. The first direction, the second direction, and the longitudinal direction are perpendicular to each other.

[0011] According to a preferred embodiment, a rack is provided on the frame, the rack extending between the stacking area and the transfer area; a gear and a first driving member are provided on the tray, the gear being rotatably mounted on the tray and meshing with the rack, and the first driving member being used to drive the gear to rotate.

[0012] According to a preferred embodiment, two side pressing platforms are arranged on the stacking area, and a shaping space is provided between the two side pressing platforms. The tray is located in the shaping space. An end pressing mechanism is provided on the tray, and a side pressing mechanism is provided on the side pressing platform.

[0013] According to a preferred embodiment, the end-pressing mechanism includes a movable end plate and a fixed end plate mounted on the tray. Both the movable end plate and the fixed end plate are provided with a clearance notch for avoiding the support bar, and the support bar can extend into the clearance notch. The movable end plate can move closer to or further away from the fixed end plate.

[0014] According to a preferred embodiment, the side-pressing mechanism includes a main frame slidably mounted on the side-pressing table, with a side-pressing plate disposed on the side of the main frame facing the shaping space; a sub-frame is slidably mounted on the main frame, with a longitudinal pressure plate disposed on the side of the sub-frame facing the shaping space, the longitudinal pressure plate being able to move closer to or further away from the shaping space along the longitudinal direction.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] In this invention, during the placement of the battery cells along the extension direction of the support bars, the battery cells are separated from the support bars, thus effectively preventing damage to the battery cell's coating due to friction between the battery cells and the support bars. At the same time, after the battery modules are stacked to form a battery module, the tray carries the battery module from the stacking area to the transfer area to reach the next workstation. Compared with the traditional robot transfer method, it avoids the risk of the battery module falling during the transfer process and can effectively improve the transfer efficiency of the battery module. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of the battery cell stacking device provided in the embodiments of this utility model;

[0019] Figure 2 A schematic diagram of the structure of the tray assembly end pressing mechanism and the battery module after assembly, as provided in this embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the first three-dimensional structure of the pallet assembly end pressing mechanism provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the second three-dimensional structure after the pallet assembly end pressing mechanism is provided in an embodiment of this utility model;

[0022] Figure 5 A schematic diagram of the assembly structure of the tray and guide rail provided in an embodiment of this utility model;

[0023] Figure 6 A schematic diagram of the assembly structure of the feed claw assembly provided in this embodiment of the utility model via the longitudinal plate and the linear module;

[0024] Figure 7 A first three-dimensional structural diagram of the feed claw assembly and the longitudinal plate after assembly in an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the second three-dimensional structure of the material claw assembly and the longitudinal plate provided in this embodiment of the present invention;

[0026] Figure 9 A first three-dimensional structural schematic diagram of the side-pressure structure provided in this embodiment of the present invention;

[0027] Figure 10A second three-dimensional structural schematic diagram of the side-pressure structure provided in an embodiment of the present invention.

[0028] Icons: 1-Frame, 11-Stacking area, 111-Side pressure table, 112-Shaping space, 1121-Guide rail, 1122-Rack, 12-Transfer area, 2-Side pressure mechanism, 21-Main frame, 211-Side pressure plate, 212-First power cylinder, 22-Sub-frame, 221-Longitudinal pressure plate, 222-Second power cylinder, 223-Third power cylinder, 3-End pressure mechanism, 30-Pattern, 301-Gear, 302-First drive component, 303-Mounting column, 3031-Adjusting cylinder, 304-Modible end plate, 305- Fixed end plate, 306-moving square hole, 307-avoidance notch, 308-sliding block, 309-second driving component, 31-longitudinal plate, 311-transmission screw, 312-driving block, 313-driving cylinder, 32-claw assembly, 321-gripping part, 3211-adapter plate, 3212-claw body, 3213-base plate, 322-bracket, 323-limiting plate, 324-buffer spring, 33-linear module, 34-support bar, 4-battery module, 41-cell, X-first direction, Y-second direction, Z-longitudinal direction. Detailed Implementation

[0029] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] Please refer to Figures 1 to 10A battery cell stacking device includes a frame 1, a tray 30, a support bar 34, and a claw assembly 32. The frame 1 has a stacking area 11 and a transfer area 12. The tray 30 is movably disposed on the frame 1 and can reciprocate between the stacking area 11 and the transfer area 12. The support bar 34 is disposed on the tray 30 for supporting battery cells 41. The claw assembly 32 is movably disposed on the tray 30 for gripping the battery cells 41 and placing them on the support bar 34. The claw assembly 32 can drive the battery cells 41 longitudinally (Z) to disengage the battery cells 41 from the support bar 34.

[0033] The battery cells 41 used to stack and form the battery module 4 are placed on the support bar 34. Preferably, the support bar 34 is horizontally set. After the battery cells 41 are transferred to the support bar 34 by the robotic arm, the gripper assembly 32 grasps the battery cells 41 and makes them separate from the support bar 34 in the longitudinal direction Z. Then, the battery cells 41 are placed in appropriate positions in the extension direction of the support bar 34. Since the battery cells 41 are separated from the support bar 34 during the placement process in the extension direction of the support bar 34, the coating of the battery cells 41 can be effectively avoided due to friction between the battery cells 41 and the support bar 34. At the same time, after the battery module 4 is stacked and formed, the tray 30 carries the battery module 4 from the stacking area 11 to the transfer area 12 to reach the next work station. Compared with the traditional robot transfer method, it avoids the risk of the battery module 4 falling during the transfer process and can effectively improve the transfer efficiency of the battery module 4.

[0034] It should be noted that the next processing station for battery module 4, also known as the "next station" mentioned above, can be located in transfer area 12, or it can be an extension of transfer area 12 into the "next station" area.

[0035] like Figure 1 As shown, in some embodiments, two side pressing platforms 111 are arranged in the stacking area 11, and a shaping space 112 is provided between the two side pressing platforms 111. A guide rail 1121 is provided in the shaping space 112, and the guide rail 1121 extends from the shaping space 112 into the transfer area 12. The tray 30 is slidably connected to the guide rail 1121. In use, the tray 30 reciprocates between the stacking area 11 and the transfer area 12 by sliding along the guide rail 1121. An end pressing mechanism 3 is provided on the tray 30, and a side pressing mechanism 2 is provided on the side pressing platforms 111. When the tray 30 is in the stacking area 11, the end pressing mechanism 3 and the side pressing mechanism 2 work together to shape the cells 41 stacked on the support bar 34 to form the battery module 4.

[0036] like Figure 5As shown, a rack 1122 parallel to the guide rail 1121 is also provided in the shaping space 112. The rack 1122 extends between the stacking area 11 and the transfer area 12. A gear 301 and a first driving member 302 are provided on the tray 30. The gear 301 is rotatably mounted on the tray 30 and meshes with the rack 1122. The first driving member 302 is used to drive the gear 301 to rotate. Preferably, the first driving member 302 is a motor, and the output shaft of the motor is connected to the gear 301 for transmission. In use, the first driving member 302 drives the gear 301 to rotate, and the tray 30 slides relative to the guide rail 1121 along the extension direction of the rack 1122, that is, the extension direction of the guide rail 1121, through the transmission of the gear 301 and rack 1122. In other words, the reciprocating motion of the tray 30 between the stacking area 11 and the transfer area 12 is realized through the transmission of the gear 301 and rack 1122. It should be noted that the tray 30 is equipped with a sliding block 308 that is compatible with the guide rail 1121. In this embodiment, the rack 1122 is fixedly installed on the frame 1.

[0037] In other embodiments, the tray 30 can also be driven to slide on the guide rail 1121 by a linear module 33 or a cylinder or other driving component. Since the travel distance between the stacking area 11 and the transfer area 12 is large, in this embodiment, the drive is preferably performed by a gear 301 and rack 1122 transmission.

[0038] In some embodiments, the claw assembly 32 includes a bracket 322, which is movable along the extension direction of the support bar 34. The bracket 322 is provided with a gripping part 321 for gripping the battery cell 41. The gripping part 321 and / or the bracket 322 are movable along the longitudinal direction Z so that the battery cell 41 gripped by the gripping part 321 is disengaged from the support bar 34.

[0039] In this embodiment, preferably, the bracket 322 is capable of moving longitudinally Z so that the battery cell 41 grasped by the gripping part 321 is disengaged from the support bar 34.

[0040] Specifically, a longitudinal plate 31 is provided on the tray 30, which can move along the extension direction of the support bar 34. The bracket 322 is assembled on the longitudinal plate 31 and can move relative to the longitudinal plate 31 in the longitudinal direction Z. In this way, the gripping part 321 can move in the extension direction of the support bar 34 and in the longitudinal direction Z, thereby realizing the sequential placement of the battery cells 41 on the support bar 34.

[0041] Furthermore, the bracket 322 is slidably connected to the longitudinal plate 31 via a slide rail slider assembly. A transmission screw 311 is rotatably mounted on the longitudinal plate 31, and a drive block 312 is drivenly connected to the transmission screw 311. The drive block 312 is fixedly connected to the bracket 322. The transmission screw 311 is driven to rotate by a motor mounted on the longitudinal plate 31, thereby driving the bracket 322 to move longitudinally in the Z direction via the drive block 312.

[0042] The end-pressing mechanism 3 includes a mounting column 303 disposed on the tray 30, a support bar 34 fixed to the tray 30 via the mounting column 303, and an adjustment space between the support bar 34 and the tray 30; a bracket 322 extends into the adjustment space, and a gripping part 321 includes two claws 3212 symmetrically arranged about the support bar 34, the two claws 3212 being able to move closer to or further away from each other. Figure 3 As shown, the direction in which the two claw bodies 3212 move closer or further apart is defined as the first direction X; the extension direction of the support bar 34 is defined as the second direction Y. The first direction X, the second direction Y, and the longitudinal direction Z are perpendicular to each other. Two mounting columns 303 are spaced apart on the tray 30 in the second direction Y, and the end of the support bar 34 is mounted on the adjacent mounting column 303. The end pressing mechanism 3 also includes a movable end plate 304 and a fixed end plate 305 mounted on the tray 30. The movable end plate 304 is positioned close to one of the mounting columns 303, and the fixed end plate 305 is positioned close to the other mounting column 303. Both the movable end plate 304 and the fixed end plate 305 have clearance notches 307 for avoiding the support bar 34, and the support bar 34 can extend into the clearance notches 307. In this embodiment, the movable end plate 304 is slidably connected to the tray 30 via a slide rail slider assembly, and the movable end plate 304 can move relative to the tray 30 in the second direction Y to move closer to or away from the fixed end plate 305.

[0043] Furthermore, such as Figure 4 As shown, a second driving member 309 is provided on the tray 30. The second driving member 309 acts on the movable end plate 304 to drive it to move along the second direction Y.

[0044] In this embodiment, the gripping part 321 is located within the adjustment space, that is, below the support bar 34, which can avoid interference with the feeding mechanism (not shown in the figure) when the battery cell 41 is fed onto the support bar 34. Optionally, the feeding mechanism is a robotic arm.

[0045] To avoid interference with the bracket 322 by the second drive member 309 within the adjustment space, the second drive member 309 is positioned on the side of the tray 30 away from the bracket 322. For example... Figure 4 As shown, a movable square hole 306 is provided through the pallet 30, and the movable end plate 304 extends through the movable square hole 306 to the side of the pallet 30 away from the bracket 322.

[0046] Optionally, the second drive element 309 may include, but is not limited to, a cylinder, a hydraulic cylinder, or an electric actuator.

[0047] In some embodiments, the fixed end plate 305 is connected to the tray 30 via a slide rail slider to facilitate adjustment of the position of the fixed end plate 305 as needed. It should be noted that the movement direction of the fixed end plate 305 is parallel to the movement direction of the movable end plate 304, and in use, the position of the fixed end plate 305 on the tray 30 is fixed. Figure 3 As shown, an adjusting cylinder 3031 is provided on the tray 30, and the telescopic end of the adjusting cylinder 3031 is connected to the fixed end plate 305. The position of the fixed end plate 305 is adjusted by extending or retracting the adjusting cylinder 3031, and the position of the fixed end plate 305 is fixed by the adjusting cylinder 3031.

[0048] Furthermore, such as Figure 3 , Figure 6 and Figure 7 As shown, there are at least two gripping parts 321, which are spaced apart along the extension direction of the support bar 34, i.e., the second direction Y. Adjacent gripping parts 321 can move closer to or further away from each other. In this embodiment, each gripping part 321 is responsible for gripping one battery cell 41 on the support bar 34. The presence of at least two gripping parts 321 improves the placement efficiency of the battery cells 41 on the support bar 34. In this embodiment, the number of gripping parts 321 is preferably two.

[0049] like Figure 3 and Figure 6 As shown, a linear module 33 is provided on the tray 30, and a longitudinal plate 31 is disposed on the linear module 33 and driven by it to move along the extension direction of the support bar 34. In this way, the battery cells 41 constituting the battery module 4 can be arranged sequentially in the extension direction of the support bar 34, that is, in the length direction of the battery module 4; during this process, the distance between two adjacent gripping parts 321 can be adjusted by moving them closer or further apart, which facilitates the rapid shaping of the battery module 4 in the later stage.

[0050] Specifically, in this embodiment, one gripping part 321 is slidably connected to the bracket 322 via a slide rail slider assembly, and the other gripping part 321 is fixedly connected to the bracket 322. A drive cylinder 313 is provided on the bracket 322. The drive cylinder 313 is used to drive the gripping part 321 slidably mounted on the bracket 322 to approach or move away from the gripping part 321 fixedly mounted on the bracket 322 in the second direction Y.

[0051] More specifically, the gripping part 321 includes a base plate 3213. The base plate 3213 of one gripping part 321 is fixedly connected to the bracket 322, and the base plate 3213 of the other gripping part 321 is slidably connected to the bracket 322 through a slide rail slider assembly. In this embodiment, when the base plate 3213 is slidably connected to the bracket 322, the base plate 3213 can move relative to the bracket 322 in the second direction Y, so as to realize the approach or distance of two adjacent gripping parts 321 in the second direction Y.

[0052] The gripping unit 321 also includes two adapter plates 3211 that correspond one-to-one with the two claw bodies 3212.

[0053] The adapter plate 3211 is slidably connected to the base plate 3213 via a slide rail slider assembly. The adapter plate 3211 moves relative to the base plate 3213 in the first direction X. In this embodiment, a finger cylinder is mounted on the base plate 3213. The finger cylinder drives the two adapter plates 3211 of the gripping part 321 to move the two claws 3212 closer to or further away from each other, thereby enabling the gripping part 321 to grip the battery cell 41. Further, the claw 3212 is slidably mounted on the adapter plate 3211 via the slide rail slider assembly. The claw 3212 moves relative to the adapter plate 3211 in the second direction Y. Two limiting plates 323 are provided on the adapter plate 3211. The claw 3212 is located between the two limiting plates 323. A buffer spring 324 is pressed between the claw 3212 and at least one limiting plate 323. Specifically, when the two gripping parts 321 approach each other, the buffer spring 324 is compressed during the contact process of the two battery cells 41 to achieve buffering and avoid damage caused by hard contact between the two battery cells 41. At the same time, the same effect is achieved when the battery cell 41 on one of the gripping parts 321 contacts the battery cell 41 already arranged on the support bar 34. This achieves a dense arrangement of battery cells 41 before shaping along the length of the battery module 4, thereby reducing the movement stroke of the battery cell 41 during the shaping process along the length of the battery module 4 and reducing the probability of the battery cell 41 damaging the coating due to friction with the support bar 34.

[0054] like Figure 9 and Figure 10As shown, the side pressing mechanism 2 includes a main frame 21 slidably mounted on the side pressing platform 111 via a slide rail slider assembly. A first power cylinder 212 is provided on the side pressing platform 111 for driving the main frame 21 to move along the first direction X. A side pressing plate 211 is provided on the side of the main frame 21 facing the shaping space 112. A sub-frame 22 is slidably mounted on the main frame 21 via a slide rail slider assembly. A second power cylinder 222 is provided on the main frame 21 for driving the sub-frame 22 to move relative to the main frame 21 along the first direction X. A longitudinal pressing plate 221 is provided on the side of the sub-frame 22 facing the shaping space 112 via a slide rail slider assembly. A third power cylinder 223 is provided on the sub-frame 22 for driving the longitudinal pressing plate 221 to move closer to or away from the shaping space 112 along the longitudinal direction Z. In use, after the battery cells 41 on the support bar 34 are placed, the movable end plate 304 shapes them along the length of the battery module 4, the opposite side pressure plate 211 shapes them along the width of the battery module 4, and the longitudinal pressure plate 221 shapes them along the height of the battery module 4. After the battery module 4 is shaped, it is tied with cable ties and then transferred to the next work station via the tray 30.

[0055] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A cell stacking device, characterized in that, include: The rack has a stacking area and a transfer area; A pallet is movably mounted on the frame and is capable of reciprocating between the stacking area and the transfer area; A support bar, disposed on the tray, is used to support the battery cell; A gripper assembly, movably disposed on the tray, is used to grip the battery cell and place it on the support bar. The gripper assembly is capable of driving the battery cell longitudinally to disengage it from the support bar.

2. The cell stacking device according to claim 1, characterized in that, The feed claw assembly includes a bracket that is movable along the extension direction of the support bar. The bracket is provided with a gripping part for gripping the battery cell. The gripping part and / or the bracket are movable longitudinally so that the battery cell gripped by the gripping part is disengaged from the support bar.

3. The cell stacking device according to claim 1, characterized in that, The feed claw assembly includes a bracket that can move along the extension direction of the support bar, and the bracket is provided with a gripping part for gripping the battery cell. The tray is provided with a longitudinal plate, which is movable along the extension direction of the support bar, and the bracket is assembled to the longitudinal plate and is movable longitudinally relative to the longitudinal plate.

4. The cell stacking device according to claim 2 or 3, characterized in that, The tray is provided with mounting columns, and the support strip is fixed to the tray by the mounting columns. There is an adjustment space between the support strip and the tray. The bracket extends into the adjustment space, and the gripping part includes two claws symmetrically arranged about the support bar, which can move closer to or further away from each other.

5. The cell stacking device according to claim 2 or 3, characterized in that, The gripping parts are at least two and are spaced apart along the extension direction of the support bar, and adjacent gripping parts can move closer to or further away from each other.

6. The cell stacking device according to claim 4, characterized in that, The gripping part also includes a base plate and two adapter plates that correspond one-to-one with the two claws, and the direction in which the two claws move closer or further away from each other is defined as the first direction; The base plate is mounted on the bracket, the adapter plate is slidably connected to the base plate, and the adapter plate moves relative to the base plate along the first direction; The claw body is slidably mounted on the adapter plate. The claw body moves relative to the adapter plate in a second direction. Two limiting plates are provided on the adapter plate. The claw body is located between the two limiting plates. A buffer spring is pressed between the claw body and at least one of the limiting plates. The first direction, the second direction, and the longitudinal direction are perpendicular to each other.

7. The cell stacking device according to claim 1, characterized in that, A rack is provided on the frame, and the rack extends between the stacking area and the transfer area; The tray is provided with a gear and a first driving member. The gear is rotatably mounted on the tray and meshes with the rack. The first driving member is used to drive the gear to rotate.

8. The cell stacking device according to claim 1, characterized in that, The stacking area is equipped with two side pressing platforms, and there is a shaping space between the two side pressing platforms. The tray is located within the shaping space. The tray is provided with an end pressing mechanism, and the side pressing platform is provided with a side pressing mechanism.

9. The cell stacking device according to claim 8, characterized in that, The end-pressing mechanism includes a movable end plate and a fixed end plate mounted on the tray. Both the movable end plate and the fixed end plate are provided with a clearance notch for avoiding the support bar, and the support bar can extend into the clearance notch. The movable end plate can move closer to or further away from the fixed end plate.

10. The cell stacking device according to claim 8, characterized in that, The side-pressing mechanism includes a main frame that is slidably mounted on the side-pressing table, and a side-pressing plate is provided on the side of the main frame facing the shaping space; A sub-frame is slidably mounted on the main frame, and a longitudinal pressure plate is provided on the side of the sub-frame facing the shaping space. The longitudinal pressure plate can move closer to or further away from the shaping space along the longitudinal direction.

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