Bare battery cell recovery equipment

Abstract

The utility model belongs to the field of battery cell recovery, and discloses naked battery cell recovery equipment which comprises a recovery rack, an upper diaphragm recovery device, a complex separation device and a lower diaphragm separation device, an upper diaphragm separation station, a blowing separation station and a lower diaphragm separation station are sequentially formed on the recovery rack along the recovery direction of the bare battery cell; the upper diaphragm recovery device is arranged on the upper diaphragm separation station and is used for stripping and recovering an upper diaphragm on a pole piece in the unfolded naked battery cell; the complex separation device is arranged at the blowing separation station and is used for separating the residual upper diaphragm after stripping; and the lower diaphragm separation device is arranged at the lower diaphragm separation station and is used for stripping a lower diaphragm on a pole piece in the unfolded naked battery cell. According to the naked battery cell recovery equipment provided by the utility model, the naked battery cells are separated and recovered at different stations respectively, so that the naked battery cells are automatically recovered in the whole process, manual disassembly is not needed, and the recovery speed is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell recycling, in particular to a bare battery cell recycling device. Background Art

[0002] With the development of battery technology, the recycling of battery cells is becoming more and more important. During the recycling process, the metal pole pieces and diaphragms need to be separated to facilitate the separate recycling of the pole pieces and diaphragms in the battery cells.

[0003] In the prior art, the diaphragms are often separated manually. After the positive and negative electrodes are removed, they are directly transported to the recycling station to obtain the initial electrodes, which are then disassembled by workers in a sorting manner, resulting in a low recycling efficiency of the electrodes and diaphragms. Utility Model Content

[0004] The main purpose of the utility model is to provide a bare cell recycling device, aiming to solve the problem of low recycling efficiency of pole pieces and diaphragms.

[0005] To achieve the above purpose, the utility model provides a bare cell recycling device, comprising:

[0006] A recycling rack, along the recycling direction of the bare battery cells, on which an upper diaphragm separation station, an air blowing separation station and a lower diaphragm separation station are sequentially formed;

[0007] An upper diaphragm recovery device, provided at the upper diaphragm separation station, for stripping and recovering the upper diaphragm on the electrode sheet in the unfolded bare battery cell;

[0008] A composite separation device, arranged at the air blowing separation station, for blowing the upper diaphragm remaining after separation and peeling; and

[0009] A lower diaphragm separation device, provided at the lower diaphragm separation station, for peeling off the lower diaphragm on the electrode sheet in the unfolded bare battery cell;

[0010] Optionally, the complex separation device comprises:

[0011] A bearing platform, the upper end surface of which forms a bearing surface;

[0012] An extrusion assembly, comprising an extrusion piece, the extrusion piece being disposed above the bearing surface and movably mounted on the bearing platform in an up-down direction, and being used for extruding the pole piece and the upper diaphragm together with the bearing surface; and

[0013] The wind knife assembly includes a jet nozzle, which is arranged on the support platform and corresponding to the support surface, and is used to blow gas between the pole piece and the upper diaphragm.

[0014] Optionally, the recovery stand further comprises an initial separation station before the upper diaphragm separation station;

[0015] The bare cell recycling equipment further comprises an initial separation device, which is arranged at the initial separation station and is used for unwinding the wound bare cell.

[0016] Optionally, the initial separation device includes a discharge assembly, which includes two jaws arranged at intervals, the two jaws are movably arranged in the horizontal direction, and are rotatably installed on the recovery stand around an axis extending in the horizontal direction, and the two jaws are used to clamp the bare battery cell, driving the bare battery cell to move horizontally and rotate to unfold.

[0017] Optionally, the initial separation device further includes an adsorption component, the adsorption component includes a diaphragm suction cup, and the diaphragm suction cup is arranged on the recovery stand to adsorb the diaphragm on the bare battery cell.

[0018] Optionally, the initial separation device also includes a fixing component, which includes a fixing jaw, which is spaced apart from the diaphragm suction cup and has a movable stroke approaching or moving away from the diaphragm suction cup, so as to clamp the bare battery cell together with the diaphragm suction cup.

[0019] Optionally, the initial separation device also includes a scraper assembly, which includes a scraper roller. The scraper roller is rotatably mounted on the recovery stand around a horizontal axis and is within the active stroke of the two jaws, so as to rotate and scrape off the detached pole pieces of the bare battery cell when it is unfolded.

[0020] Optionally, the recovery stand further comprises a feeding station before the initial separation station;

[0021] The bare cell recycling equipment also includes a feeding device, which is arranged at the feeding station and is used to transport the bare cells to the initial separation station.

[0022] Optionally, the feeding device comprises:

[0023] a feeding conveyor belt, mounted on the recycling rack, for conveying bare cells; and,

[0024] The diaphragm hot cutting assembly includes a cutting element, which is movably mounted on the recovery stand in the up-down direction and is spaced apart from the upper end surface of the feeding conveyor belt to cut the bare battery cell diaphragm on the feeding conveyor belt.

[0025] Optionally, the bare cell recycling equipment further includes a transfer device, which includes a coil clamp movably mounted on the recycling stand along the recycling direction of the recycling stand, and the coil clamp is used to clamp the unfolded bare cell coil.

[0026] The utility model provides a bare cell recycling device, which transports the unfolded bare cell to an upper diaphragm recycling device, separates and recovers the upper diaphragm through the upper diaphragm recycling device, and then continues to transport it to the next station, so that the composite separation device separates the upper diaphragm that has not been recovered, leaving only the lower diaphragm and the pole piece, and then continues to transport the bare cell to separate and recover the lower diaphragm in the lower diaphragm separation device, and finally only the pole piece that has not been rolled up is left, and the recovery and separation of the diaphragm and the pole piece are completed respectively. The whole process is separated and recovered by respectively performing separation and recovery at different stations, so that the bare cell can be fully automatically recycled, without manual disassembly, and the recycling rate is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a bare cell recycling device provided by an embodiment of the utility model;

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle and upper diaphragm recovery device;

[0029] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the middle and upper diaphragm recovery device;

[0030] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the bare battery cell recycling equipment from another angle;

[0031] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0032] Figure 6 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle and lower diaphragm recovery device;

[0033] Figure 7 yes Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0034] Figure 8 yes Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0035] Description of Figure Numbers:

[0036]

[0037]

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0042] See also Figure 1 The utility model provides a bare cell recycling device 100, comprising a recycling stand 1, an upper diaphragm recycling device 2, a composite body separation device 3 and a lower diaphragm separation device 4; along the recycling direction of the bare cell, the recycling stand 1 is sequentially provided with an upper diaphragm separation station, an air blowing separation station and a lower diaphragm separation station; the upper diaphragm recycling device 2 is arranged at the upper diaphragm separation station, for stripping and recycling the upper diaphragm on the pole piece in the unfolded bare cell; the composite body separation device 3 is arranged at the air blowing separation station, for separating the upper diaphragm remaining after stripping; the lower diaphragm separation device 4 is arranged at the lower diaphragm separation station, for stripping the lower diaphragm on the pole piece in the unfolded bare cell;

[0043] In the bare cell recycling equipment 100 provided by the utility model, the unfolded bare cell is conveyed to the upper diaphragm recovery device 2, the upper diaphragm is separated and recovered by the upper diaphragm recovery device 2, and then continued to be conveyed to the next station, so that the composite separation device 3 separates the unrecovered upper diaphragm, leaving only the lower diaphragm and the electrode piece, and then by continuing to convey, the bare cell is separated and recovered by the lower diaphragm in the lower diaphragm separation device 4, and finally only the unreeled electrode piece falls under the recycling stand, completing the recovery and separation of the diaphragm and the electrode piece respectively. The whole process is separated and recovered separately at different stations, so that the recycling of the bare cell can be realized in the whole process automatically, without manual disassembly, and the recycling rate is faster.

[0044] See also Figure 2 The utility model provides an upper diaphragm recovery device 2, comprising a mounting frame 21, an upper diaphragm adsorption assembly and an upper diaphragm winding assembly; the upper diaphragm adsorption assembly comprises an adsorption member 221 movably mounted on the mounting frame 21 in the up-down direction, the adsorption member 221 is used to adsorb and lift the upper diaphragm on the pole piece upward; the upper diaphragm winding assembly is mounted on the mounting frame 21 to wind up the lifted upper diaphragm.

[0045] In the upper diaphragm recovery device provided by the utility model, the mounting frame 21 is provided with an upper diaphragm adsorption assembly, an upper diaphragm cutting assembly and an upper diaphragm winding assembly. During the diaphragm recovery process, the pole piece with the diaphragm is placed on the mounting frame 21, and the adsorption member 221 moves downward to be adsorbed onto the diaphragm, and moves upward to separate the diaphragm from the pole piece, so that the entire diaphragm is in a lifted and suspended state, and the diaphragm is wound up by the upper diaphragm winding assembly to complete the diaphragm recovery, realize the fully automatic separation of the diaphragm and the pole piece, and perform automatic recovery of the diaphragm, with higher recovery efficiency, and can be directly arranged on the recovery production line to disassemble the diaphragm during the transmission of the pole piece.

[0046] Furthermore, in this embodiment, the upper diaphragm adsorption assembly further includes an upper diaphragm bearing plate 222, which is movably mounted on the mounting frame 21 in the up-down direction, and the adsorption member 221 is fixedly mounted on the upper diaphragm bearing plate 222. In this embodiment, the adsorption member 221 is mounted through the upper diaphragm bearing plate 222 to facilitate the installation of the adsorption member 221.

[0047] It should be noted that there are multiple ways to install the upper diaphragm supporting plate 222 on the mounting frame 21 in the up and down directions. In the present embodiment, the upper diaphragm adsorption assembly further includes a first driving member, a fixed end of which is installed on the mounting frame 21, and an output end of the first driving member drives the upper diaphragm supporting plate 222 to move in the up and down directions.

[0048] Specifically, in this embodiment, the first driving member is a driving cylinder.

[0049] It should be noted that there are many implementations of the adsorption member 221, as long as the diaphragm can be separated from the electrode. For example, an adhesive plate can be used to adsorb the diaphragm by adhesive.

[0050] Specifically, in this embodiment, the adsorption member 221 includes a membrane suction cup, so as to facilitate long-term and multiple adsorption of the membrane.

[0051] In addition, in this embodiment, a plurality of adsorbing members 221 may be provided to facilitate adsorption of the diaphragm according to different situations.

[0052] On the other hand, in the upper diaphragm recovery device 2 provided by the utility model, the upper diaphragm recovery device 2 also includes an upper diaphragm cutting assembly, including an upper diaphragm cutting piece 231 movably mounted on the mounting frame 21 in the up-down direction, and the upper diaphragm cutting piece 231 is used to movably cut the upper diaphragm after lifting. In this embodiment, when the diaphragm is actually separated, it may be in the middle position of the assembly line, and there is no contact with the diaphragm in the pole piece. Therefore, the diaphragm may be lifted in the middle position, and both ends are drooped to the pole piece, which is difficult to be directly rolled up by the upper diaphragm winding assembly. Therefore, it is necessary to cut the diaphragm before rolling up, so that only the adsorbed part of the diaphragm is torn apart. When rolling up, this part can be used as the starting point for rolling up, which is convenient for continuous rolling backwards and the operation of the winding device.

[0053] It should be noted that there are many ways to dispose the upper diaphragm cutting piece 231, such as directly cutting the diaphragm with a cutting blade.

[0054] Specifically, in this embodiment, the upper diaphragm cutting member 231 includes a hot cutting wire; the upper diaphragm cutting assembly includes a support frame 232, which is movably mounted on the mounting frame 21 in the up-down direction, and the support frame 232 includes two support rods arranged at intervals in the horizontal direction, and the two ends of the hot cutting wire 31 are respectively fixed to the two support rods. In this embodiment, the hot cutting wire is used for cutting. After power is turned on, the hot cutting wire quickly heats up, and after contacting the diaphragm, it quickly melts and cuts off the contact part, cutting the diaphragm, and the cutting speed is fast, and the diaphragm can be cut at any angle.

[0055] It should be noted that, in the present embodiment, the support frame 232 is movably mounted on the mounting frame 21 in the up-down direction, and the upper diaphragm cutting assembly further includes a second driving member for driving the movement of the support frame 232 .

[0056] There are multiple implementations of the second driving member. In this embodiment, the second driving member is also a driving cylinder.

[0057] On the other hand, the upper diaphragm winding assembly has a variety of implementations, such as directly adopting a winding roller for winding, after the diaphragm is lifted, it is placed on the winding roller, and the diaphragm is wound by rotating the winding roller.

[0058] In the upper diaphragm recovery device 2 provided by the utility model, the upper diaphragm winding assembly includes a winding frame 241 and a plurality of winding rods 242; the winding frame 241 is rotatably mounted on the mounting frame 21 around a horizontal axis; the plurality of winding rods 242 are all arranged to extend in the horizontal direction, and the plurality of winding rods 242 are installed on the winding frame 241 at intervals, and the plurality of winding rods 242 are used to wind up the upper diaphragm together. In this embodiment, the diaphragm is wound by the plurality of winding rods 242 arranged at intervals, and the plurality of winding rods 242 are wound around each other by the rotation of the winding frame 241, so that the diaphragm between the plurality of winding rods 242 can be easily wound up by itself, and there is no need to manually continue to fix the diaphragm on the upper diaphragm winding assembly, and the winding efficiency is high.

[0059] It should be noted that the upper diaphragm winding assembly further includes a third driving member for driving the winding frame 241 to rotate.

[0060] Specifically, in this embodiment, the third driving member is a driving motor.

[0061] On the other hand, in the upper diaphragm recovery device 2 provided by the present invention, please refer to Figure 3 , the upper diaphragm winding assembly is horizontally movable and mounted on the mounting frame 21. In this embodiment, the upper diaphragm winding assembly is horizontally movable so that the upper diaphragm winding assembly can be moved below the lifted upper diaphragm to facilitate the recovery of the upper diaphragm.

[0062] Specifically, a sliding matching structure is provided between the upper diaphragm winding assembly and the mounting frame 21, and the sliding matching structure includes a slide rail and a slide groove that are arranged in cooperation with each other, and the slide rail and the slide groove are arranged to extend in the horizontal direction, and one of the slide rail and the slide groove is arranged on the mounting frame, and the other is arranged on the upper diaphragm winding assembly. In this embodiment, the horizontal displacement control of the upper diaphragm winding assembly is performed by means of the slide groove and the slide rail, which can ensure that the upper diaphragm winding assembly is displaced to the correct position, and the stability during the displacement process can be ensured.

[0063] It should be noted that, in the present embodiment, the upper diaphragm recovery device 2 further includes a fourth driving member, and the fourth driving member drives the upper diaphragm winding assembly to move in a horizontal direction.

[0064] There are multiple implementations of the fourth driving member. In this embodiment, the fourth driving member is a cylinder.

[0065] In addition, the mounting frame 21 has a winding station and a storage station, and the winding frame 241 moves horizontally and sequentially passes through the winding station and the film stripping station; the upper diaphragm adsorption assembly is arranged corresponding to the storage station; the mounting frame 21 includes a protective plate 25, and the protective plate 25 is arranged on one side of the winding station. In this embodiment, the upper diaphragm winding assembly can move backward after completing the initial winding of the diaphragm, and a protective plate 25 is arranged at the storage station to protect other equipment and operators on the surrounding side.

[0066] On the other hand, in the upper diaphragm recovery device 2 provided by the utility model, the upper diaphragm recovery device 2 also includes a clamping assembly, and the clamping assembly includes a clamping member 261 movably mounted on the mounting frame in the up-down direction, and the clamping member 261 is used to clamp the lifted upper diaphragm. In this embodiment, in order to facilitate the upper diaphragm winding assembly to be wound up, after the adsorption member is attached and the upper diaphragm on the pole piece is lifted upward, the diaphragm is clamped by the clamping member 261, at which time the adsorption member can be released, and then the upper diaphragm winding assembly starts to be wound up, and the diaphragm is released after the initial winding is completed, so as to ensure the reliability of the diaphragm winding up.

[0067] It should be noted that the clamping member 261 has multiple implementations. In this embodiment, the clamping member 261 is a clamping claw.

[0068] On the other hand, see Figures 4 to 5The composite separation device 3 includes a carrier platform 31, an extrusion assembly and a wind knife assembly; the upper end surface of the carrier platform 31 forms a carrier surface; the extrusion assembly has an extrusion member 321, and the extrusion member 321 is arranged above the carrier surface and movably installed on the carrier platform 31 along the up and down directions, and is used to extrude the pole piece and the upper diaphragm together with the bearing surface; the wind knife assembly includes a nozzle 331, which is arranged on the carrier platform 31 and corresponding to the bearing surface, and is used to blow gas between the pole piece and the upper diaphragm. In this embodiment, after the upper diaphragm and the electrode sheet are separated, a small portion of the upper diaphragm that has not been peeled off and collected will remain on the electrode sheet. At this time, the bare battery cell is transported to the supporting platform 31, and the extruder 321 moves downward to squeeze the bare battery cell together with the supporting surface. Due to the inconsistent material properties of the diaphragm and the electrode sheet, cracks appear in the diaphragm and the electrode sheet in the bare battery cell. At this time, gas is blown toward the supporting surface through the nozzle 331, so that the airflow is pressed into the space between the diaphragm and the electrode sheet, so that a gap appears in the connection between the diaphragm and the electrode sheet, forming a separation.

[0069] It should be noted that, in this embodiment, the extrusion member 321 has multiple implementations, such as extruding the bare battery cell on the bearing surface by means of an extrusion roller, or using an extrusion plate, as long as it can extrude the bare battery cell together with the bearing surface.

[0070] Specifically, in the present embodiment, the extrusion member 321 includes the extrusion roller and the extrusion plate, which can ensure that the bare cell moves on the supporting surface and is extruded at the same time.

[0071] Likewise, a conveying roller is also provided on the carrying surface to facilitate the movement of the bare battery cell on the carrying surface.

[0072] In addition, the nozzle 331 is arranged on the supporting platform 31, and only needs to be able to blow gas to the bare battery cell on the supporting surface. In the present embodiment, the nozzle 331 is located below the supporting surface, and is used to blow gas upward so as to emit airflow to the pole piece. The airflow bypasses the pole piece and flows into the space between the pole piece and the lower diaphragm from the circumference of the pole piece, thereby separating the pole piece from the lower diaphragm.

[0073] On the other hand, see Figure 6 The utility model provides a lower diaphragm separation device 4, including a mounting base 41 and a lower diaphragm separation component; the lower diaphragm separation component includes a material picking member 421 movably mounted on the mounting base in the horizontal direction and in the vertical direction, and the material picking member 421 is used to extend between the pole piece and the lower diaphragm.

[0074] See also Figure 6The utility model provides a lower diaphragm separation device 4, including the material picking piece 421 for inserting between the pole piece and the lower diaphragm, the material picking piece 421 is movably installed on the mounting base 41 along the horizontal direction and along the vertical direction. When the lower diaphragm is separated, the lower diaphragm separation component is moved so that the material picking piece 421 is inserted between the pole piece and the lower diaphragm, and the lower diaphragm is completely removed and peeled off through the movement of the material picking piece.

[0075] It should be noted that the lower diaphragm separation assembly includes the material taking member 421, and the material taking member 421 can move in a variety of ways, as long as it can move horizontally and up and down.

[0076] Specifically, in this embodiment, the lower diaphragm separation assembly further includes a bearing plate 422, and the bearing plate 422 is movably mounted on the mounting base 41 in the vertical direction, and the material picking member 421 is movably mounted on the bearing plate 422 in the horizontal direction. In this embodiment, the lower diaphragm separation assembly further includes a bearing plate 422, and through the separate movements of the bearing plate 422 and the material picking member 421, two-dimensional movements in the horizontal direction and the vertical direction are realized, and separate movements can be realized to facilitate the control of the movement.

[0077] It should be noted that there are many ways for the supporting plate 422 to move in the up and down direction, for example, the supporting plate 422 can be moved in the up and down direction by setting guide rods and holes.

[0078] Specifically, in this embodiment, a sliding matching structure is provided between the mounting base 41 and the bearing plate 422, and the sliding matching structure includes a slide rail and a slide groove that are arranged in cooperation with each other, and the slide rail and the slide groove are arranged to extend in the up-down direction, and one of the slide rail and the slide groove is provided on the mounting base 41, and the other is provided on the bearing plate 422. In this embodiment, through the cooperation of the slide rail and the slide groove, the bearing plate 422 can slide stably, and the bearing plate 422 can be prevented from shaking during the sliding process. At the same time, the setting method is simple, and there is no need to damage the structure of the bearing plate and the mounting base, and the rail and the groove can be directly installed.

[0079] Furthermore, in order to facilitate the movement of the support plate 422, the lower diaphragm separation device 4 also includes a first driving device 44, which is installed on the installation base 41 to drive the movement of the support plate 422. In this embodiment, the lower diaphragm separation device 4 includes the first driving device 44, and the support plate 422 is directly driven by the first driving device 44 to achieve intelligent control of the lower diaphragm separation device 4, and a motion module is formed, which does not need to be subsequently installed in coordination with an external driving component.

[0080] In the embodiment provided by the utility model, the first driving device 44 includes a driving motor and a ball screw, the driving motor is mounted on the mounting base 41, one end of the ball screw is wound around the output shaft of the driving motor, and the other end is driven and connected to the bearing plate. In this embodiment, the precise control of the up and down positions is achieved through the cooperation of the driving motor and the synchronous belt, and precise movement and stopping at different positions can be achieved, which is convenient for insertion into the gap between the corresponding pole piece and the lower diaphragm.

[0081] On the other hand, the lower diaphragm separation device 4 further includes a second driving device 45, which is mounted on the carrier plate 422 to drive the material picking member 421 to move. In this embodiment, the material picking member 421 is directly driven by the second driving device 45 to facilitate horizontal reciprocating movement, and the second driving device 45 directly drives the material picking member 421 to be inserted between the pole piece and the lower diaphragm.

[0082] Specifically, in this embodiment, the second driving device 45 includes a driving cylinder to facilitate extension and retraction of the fixed position.

[0083] In addition, in order to ensure the stability of the movement of the material picking member 421, a sliding matching structure is also provided between the material picking member 421 and the supporting plate 422, including a slide groove and a slide rail that cooperate with each other, which will not be described in detail here.

[0084] On the other hand, in this embodiment, the material taking member 421 includes a clamping plate, and the clamping plates are all arranged to extend in the horizontal direction. In this embodiment, the lower diaphragm separation device 4 is used to peel off the electrode sheet and the lower diaphragm, and the electrode sheet and the lower diaphragm are transported in the horizontal direction. Therefore, the gap formed between the electrode sheet and the lower diaphragm also extends in the horizontal direction. Therefore, the clamping plate extending horizontally is inserted between the electrode sheet and the lower diaphragm to separate the electrode sheet and the lower diaphragm.

[0085] Furthermore, two clamps are provided, and the two clamps are spaced apart in the vertical direction and have a movable stroke of approaching or moving away from each other. In this embodiment, the two clamps are inserted between the pole piece and the lower diaphragm, and are respectively located on both sides of the lower diaphragm, and are close to each other to clamp the lower diaphragm, so as to facilitate the removal of the lower diaphragm.

[0086] It should be noted that, in this embodiment, the lower diaphragm separation assembly further includes a third driving member to drive the two clamping plates to move.

[0087] In this embodiment, the third driving member is a clamping cylinder.

[0088] On the other hand, see Figure 7, the recycling rack 1 also includes an initial separation station before the upper diaphragm separation station; the bare cell recycling equipment 100 also includes an initial separation device 5, which is arranged at the initial separation station to unfold the wound bare cell. In this embodiment, before entering the upper diaphragm separation station, the wound bare cell needs to be unfolded, and the bare cell is unfolded by the initial separation device 5, which facilitates the full automation operation, and does not need to be manually unfolded and placed on the recycling rack.

[0089] Specifically, the initial separation device 5 includes a discharge assembly, which includes two spaced apart clamps 51, the two clamps 51 are movably arranged in the horizontal direction, and are rotatably mounted on the recovery stand 1 around an axis extending in the horizontal direction, and the two clamps 51 are used to clamp the bare cell, driving the bare cell to move in the horizontal direction and rotate to unfold. In this embodiment, the bare cell is clamped by the two clamps, and the bare cell is unfolded by rotation. The unfolding method is simple and reliable, and it only needs to fix the diaphragm on the bare cell to unfold it by rotation.

[0090] It should be noted that the two clamping jaws 51 can also be movably mounted on the recovery stand 1 in the up-and-down direction to facilitate rotation and position adjustment.

[0091] Furthermore, the initial separation device 5 also includes an adsorption component, which includes a diaphragm suction cup 52, and the diaphragm suction cup 52 is arranged on the recovery stand 1 to adsorb the diaphragm on the bare cell. In this embodiment, before rotating and unfolding the bare cell, the bare cell is moved to the diaphragm suction cup 52 through the movement of the two clamps 51, and the diaphragm is adsorbed by the diaphragm suction cup, and then the two clamps 51 leave and rotate to unfold the bare cell. At the same time, during the unfolding process, the pole piece of one polarity between the diaphragms will fall off.

[0092] Furthermore, the initial separation device 5 also includes a fixing component, and the fixing component includes a fixed clamping jaw 53, and the fixed clamping jaw 53 is spaced apart from the diaphragm suction cup 52, and has a movable stroke close to or away from the diaphragm suction cup 52, so as to clamp the bare battery cell together with the diaphragm suction cup 52. In this embodiment, after the two clamping jaws 51 move the bare battery cell to the diaphragm suction cup 52 and adsorb it, in order to facilitate the unfolding of the bare battery cell, the bare battery cell is fixedly clamped on the diaphragm suction cup 52 by the fixed clamping jaw 53. At this time, the diaphragm in the bare battery cell can be pulled out and sent to the subsequent workstation, and then the fixed clamping jaw 53 is released, and the two clamping jaws 51 continue to clamp and start to rotate and unfold, so as to facilitate the unfolding of the battery cell, and continuously transport the unfolded bare battery cell to the subsequent workstation.

[0093] In addition, the initial separation device 5 also includes a scraper assembly, and the scraper assembly includes a scraper roller 54. The scraper roller 54 is rotatably mounted on the recycling stand 1 around a horizontal axis and is in the active stroke of the two clamps 51, so as to rotate and scrape off the detached pole pieces when the bare cell is unfolded. In this embodiment, during the rotation and unfolding of the bare cell, since the pole piece of one polarity is directly coated between the diaphragms, it will automatically fall off. However, during long-term use, the pole piece may adhere to the diaphragm and be difficult to fall off. At this time, during the rotation and unfolding of the bare cell, the scraper roller 54 is attached to the outer surface of the bare cell so that the pole piece circuit can be scraped off when it comes out, which facilitates the separation between the pole piece and the diaphragm.

[0094] For further information, see Figure 8 The recycling rack 1 also includes a feeding station located before the initial separation station; the bare cell recycling equipment 100 also includes a feeding device 6, which is arranged at the feeding station and is used to transport bare cells to the initial separation station. In this embodiment, in order to facilitate the automated recycling of bare cells, the bare cells are transported to the initial separation station by the feeding device 6, saving manpower.

[0095] Specifically, the feeding device 6 includes a feeding conveyor belt 61 and a diaphragm hot cutting assembly 62; the feeding conveyor belt 61 is installed on the recycling rack 1 to transport bare cells; the diaphragm hot cutting assembly includes a cutting element, which is movably installed on the recycling rack 1 in the up-down direction and is spaced apart from the upper end surface of the feeding conveyor belt 61 to cut the bare cell diaphragm on the feeding conveyor belt 61. In this embodiment, the feeding conveyor belt 61 transports bare cells, and during the transport process, the cutting element cuts the bare cells on the feeding conveyor belt 61 and cuts the diaphragm to facilitate subsequent diaphragm unfolding, thereby avoiding the inability to unfold due to the inability to find the joint.

[0096] It should be noted that the discharge end of the feeding conveyor belt 61 is located within the movable travel of the two clamping jaws 51 , so that the two clamping jaws 51 can clamp the bare battery cells of the feeding conveyor belt 61 and drive the bare battery cells to move.

[0097] On the other hand, the bare cell recycling equipment 100 further includes a transfer device, which includes a coil clamp 7 movably mounted on the recycling rack along the recycling direction of the recycling rack, and the coil clamp 7 is used to clamp the unfolded bare cell coil. In this embodiment, the unfolded bare cell coil is in a long strip. In order to facilitate the movement of the bare cell coil in the recycling direction, the end of the bare cell coil is clamped by the material clamp 7, and the bare cell coil is pulled to move in the recycling direction, so that the bare cell coil passes through each station on the recycling rack 1 in sequence.

[0098] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bare cell recycling device, characterized in that: include: A recycling rack, along the recycling direction of the bare battery cells, on which an upper diaphragm separation station, an air blowing separation station and a lower diaphragm separation station are sequentially formed; An upper diaphragm recovery device, provided at the upper diaphragm separation station, for stripping and recovering the upper diaphragm on the electrode sheet in the unfolded bare battery cell; A composite separation device, arranged at the air blowing separation station, for separating and peeling off the remaining upper diaphragm; as well as, The lower diaphragm separation device is arranged at the lower diaphragm separation station and is used for stripping the lower diaphragm on the pole piece in the unfolded bare battery cell.

2. The bare cell recycling equipment according to claim 1, characterized in that: The complex separation device comprises: A bearing platform, the upper end surface of which forms a bearing surface; An extrusion assembly, comprising an extrusion piece, the extrusion piece being disposed above the bearing surface and movably mounted on the bearing platform in an up-down direction, and being used for extruding the pole piece and the upper diaphragm together with the bearing surface; and The wind knife assembly includes a jet nozzle, which is arranged on the supporting platform and corresponding to the supporting surface, and is used for blowing gas between the pole piece and the upper diaphragm.

3. The bare cell recycling equipment according to claim 1, characterized in that: The recovery stand also includes an initial separation station located before the upper diaphragm separation station; The bare cell recycling equipment further comprises an initial separation device, which is arranged at the initial separation station and is used for unwinding the wound bare cell.

4. The bare cell recycling equipment according to claim 3, characterized in that: The initial separation device includes a discharge assembly, which includes two jaws arranged at intervals. The two jaws are movably arranged in the horizontal direction and are rotatably installed on the recovery stand around an axis extending in the horizontal direction. The two jaws are used to clamp the bare battery cell, driving the bare battery cell to move horizontally and rotate and unfold.

5. The bare cell recycling equipment according to claim 4, characterized in that: The initial separation device also includes an adsorption component, which includes a diaphragm suction cup. The diaphragm suction cup is arranged on the recovery stand and is used to adsorb the diaphragm on the bare battery cell.

6. The bare cell recycling equipment according to claim 5, characterized in that: The initial separation device also includes a fixing component, which includes a fixing jaw. The fixing jaw is spaced apart from the diaphragm suction cup and has a movable stroke that approaches or moves away from the diaphragm suction cup, so as to clamp the bare battery cell together with the diaphragm suction cup.

7. The bare cell recycling equipment according to claim 4, characterized in that: The initial separation device also includes a scraper assembly, which includes a scraper roller. The scraper roller is rotatably mounted on the recovery stand around a horizontal axis and is within the active stroke of the two clamps, so as to rotate and scrape off the detached pole pieces of the bare battery cell when it is unfolded.

8. The bare cell recycling equipment according to claim 3, characterized in that: The recovery stand also includes a feeding station located before the initial separation station; The bare cell recycling equipment also includes a feeding device, which is arranged at the feeding station and is used to transport the bare cells to the initial separation station.

9. The bare cell recycling equipment according to claim 8, characterized in that: The feeding device comprises: a feeding conveyor belt, mounted on the recycling rack, for conveying bare cells; and, The diaphragm hot cutting assembly includes a cutting element, which is movably mounted on the recovery stand in the up-down direction and is spaced apart from the upper end surface of the feeding conveyor belt to cut the bare battery cell diaphragm on the feeding conveyor belt.

10. The bare cell recycling equipment according to claim 1, characterized in that: The bare cell recycling equipment also includes a transfer device, which includes a coil clamp movably installed on the recycling stand along the recycling direction of the recycling stand, and the coil clamp is used to clamp the unfolded bare cell coil.

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