Electrode sheet recycling apparatus and electrode sheet recycling method

Abstract

The present application relates to the technical field of battery recycling, and provides an electrode sheet recycling apparatus and an electrode sheet recycling method. The electrode sheet recycling apparatus comprises, in a material movement direction: a conveying device; a feeding device, used for receiving the material fed through a feed inlet, and dispersing the material during rotation so as to convey the material to the conveying device; a material distribution device, comprising a carrying area and a first blowing mechanism, wherein the bottommost material in the carrying area is secured by means of negative pressure suction, and the first blowing mechanism is used to blow off unsuctioned material from the carrying area to achieve single-layer material distribution; and a sorting device, used for identifying different electrode sheets in the single-layer material to separate the identified different electrode sheets. The recycling apparatus provided by the present application achieves efficient and accurate sorting of battery positive and negative electrode sheets, and solves the problem of existing error-prone positive and negative electrode sheet sorting.

Description

Pole piece recycling device and pole piece recycling method

[0001] The present application claims priority to the Chinese patent application No. 202410438310.5, filed on April 12, 2024, and entitled "Pole piece recycling device and pole piece recycling method", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the technical field of battery recycling, in particular to a pole piece recycling device and a pole piece recycling method. BACKGROUND

[0003] Waste battery recycling refers to recycling and reusing used batteries.

[0004] At present, in the recycling process of batteries, the pole pieces in the batteries are usually separated manually, or color sorting machines and other devices are used to separate the mixed positive pole pieces and negative pole pieces. Since the positive pole pieces and the negative pole pieces are usually in the form of thin sheets, when the positive pole pieces and the negative pole pieces are stacked on each other, the color sorting machine and other pole piece sorting devices are prone to misclassification, and the error rate of the pole piece sorting device is high.

[0005] Therefore, how to provide a battery pole piece sorting device with high efficiency and low error rate has become a problem to be solved. SUMMARY

[0006] Embodiments of the present application provide a pole piece recycling device and a pole piece recycling method, which realize efficient and accurate sorting of positive and negative pole pieces of batteries, and solve the problem of easy error in the sorting of existing positive and negative pole pieces.

[0007] Embodiments of the present application provide the following technical solutions to solve the above technical problems:

[0008] The present application provides a pole piece recycling device, which includes, along the movement direction of the material:

[0009] A conveying device is used to convey the starting end of the material to the terminal end, so that the material moves along a set path;

[0010] A feeding device is used to receive the material entering from the inlet, and to disperse the material during rotation to convey it to the conveying device;

[0011] A distributing device includes a plurality of pore bearing areas and a first blowing mechanism arranged on the conveying device. The pore bearing areas are used to adsorb the lowermost material by negative pressure. The first blowing mechanism is used to blow the material not adsorbed on the pore bearing areas to separate from the pore bearing areas, so that the material is distributed in a single layer.

[0012] The sorting device is used for identifying different pole pieces in the single-layer material, and separating the identified different pole pieces.

[0013] The pole piece recycling device provided by the embodiment of the present application can realize efficient and accurate sorting of different pole pieces of the recycled battery through dispersion, single-layer adsorption and identification and separation of the material, and improve the pole piece recycling efficiency.

[0014] In a possible implementation, the sorting device comprises an identification device, a sorting device and a collecting device.

[0015] The identification device is used at least for identifying a first laminated structure in the single-layer material, the first laminated structure comprising a first pole piece and a second pole piece stacked together; and the identification device is used at least repeatedly for identifying the stacking order of the first pole piece and the second pole piece.

[0016] The sorting device is used for deviating the first pole piece in the first laminated structure from a set path according to the stacking order.

[0017] The collecting device comprises a first collecting member and a second collecting member, the first collecting member being used for receiving the first pole piece, and the second collecting member being used for receiving the second pole piece.

[0018] In a possible implementation, the first collecting member comprises a first part arranged on a side of the second collecting member away from the conveying device, and a second part arranged on a side of the second collecting member close to the conveying device.

[0019] The sorting device comprises a first nozzle and a second nozzle matched with each other.

[0020] The first nozzle is used for changing the motion track of the first pole piece above the second pole piece in the first laminated structure, so that the first pole piece enters the first part.

[0021] The second nozzle is arranged to blow air downward, and is configured to change the movement track of the first pole piece under the second pole piece in the first pole piece structure, so as to enter the second part.

[0022] In a possible implementation, the identification device comprises a first identification member and a second identification member, and the first identification member and the second identification member are configured to face the pole pieces on the conveying device;

[0023] The first identification member is configured to at least acquire the pole pieces in the stack and the single-layer pole pieces.

[0024] The second identification member is configured to at least identify the pole pieces as the first pole pieces or the second pole pieces according to the materials of the first pole pieces and the second pole pieces.

[0025] If the pole pieces in the stack comprise the first pole pieces and the second pole pieces, the two pole pieces in the stack are the first pole piece structure.

[0026] In a possible implementation, the sorting device further comprises a first air conveying mechanism and a second air conveying mechanism, and the first air conveying mechanism is configured to at least form a first air flow for driving the pole pieces to adhere to the conveying device.

[0027] The second air conveying mechanism is configured to form a second air flow, and the direction of the second air flow is opposite to that of the first air flow, so as to balance the air pressure in the cavity.

[0028] In a possible implementation, the feeding device comprises:

[0029] A conveying turntable rotatable in a horizontal direction, configured to receive the materials from the feeding port and disperse the materials during rotation.

[0030] A second blowing mechanism arranged above the conveying turntable, and configured to blow at least part of the materials on the conveying turntable in a first direction to separate from the conveying turntable during rotation of the conveying turntable.

[0031] A first end of the conveying device is connected to the conveying turntable, and a second end of the conveying device extends in a second direction, configured to receive the materials separated from the conveying turntable and convey the materials separated from the conveying turntable in the second direction.

[0032] The first direction is opposite to the direction of the linear velocity of the conveying turntable during rotation, and the first direction is the same as the second direction.

[0033] In a possible implementation, the blowing direction of the second blowing mechanism is a third direction, and a preset included angle is formed between the third direction and the first direction.

[0034] In a possible implementation, the preset included angle is an acute angle.

[0035] In a possible implementation, the feeding device further comprises at least one air port.

[0036] The air port is located above the conveying device, and the air port is configured to release the airflow blown by the second blowing mechanism, so that the material separated from the conveying turntable falls onto the conveying device.

[0037] In a possible implementation, an air suction device is arranged at the air port, and the air suction device is configured to suck the airflow blown by the second blowing mechanism.

[0038] In a possible implementation, the feeding device comprises a suction mechanism, one end of the suction mechanism is in abutment with the carrying area and communicates with the aperture, and the other end of the suction mechanism is configured to communicate with the negative pressure source.

[0039] The negative pressure channel is formed in the suction mechanism.

[0040] In a possible implementation, the first blowing mechanism comprises at least one first air knife, one end of each first air knife is provided with a first blowing nozzle, and the other end of each first air knife is configured to communicate with a gas source.

[0041] A plurality of first air knives are arranged at intervals along the conveying direction of the conveying device.

[0042] The first air knife is configured to form a third airflow to blow the material on the carrying area.

[0043] In a possible implementation, the first blowing mechanism further comprises at least one second air knife and a recovery structure, and the second air knife is located laterally to the carrying area.

[0044] The second air knife is configured to form a fourth airflow to blow the material on the carrying area laterally.

[0045] The recovery structure is arranged close to the conveying device, and the recovery structure is configured to recover the material separated from the conveying device and convey the recovered material to the feeding device or the feeding device.

[0046] The application further provides an electrode plate recovery method, which is recovered by using any one of the electrode plate recovery devices described above, and the method comprises the following steps.

[0047] The feeding device disperses and conveys the material to the conveying device;

[0048] The distributing device performs negative pressure adsorption and blowing on the conveyed material to make the material in a single layer distribution;

[0049] The sorting device identifies the stacking order and the type of the first laminated structure in the conveyed single layer material, and drives the first pole piece to move along a separation path into a first collection piece and the second pole piece to move along a set path into a second collection piece according to the type and the stacking order.

[0050] In a possible implementation, the sorting device identifies the stacking order and the type of the first laminated structure in the conveyed single layer material, including:

[0051] The identification device includes a first identification piece and a second identification piece;

[0052] The first identification piece acquires the stacking order of the pole piece;

[0053] The second identification piece identifies the type of the pole piece as the first pole piece or the second pole piece;

[0054] According to the type and the stacking order, the sorting device drives the first pole piece to move along a separation path into a first collection piece and the second pole piece to move along a set path into a second collection piece, including:

[0055] When the first pole piece in the first laminated structure is above the second pole piece, a first nozzle is controlled to emit air towards the non-stacked part of the first pole piece to make the first pole piece move along a first separation path and enter the first collection piece;

[0056] When the first pole piece in the first laminated structure is below the second pole piece, a second nozzle is controlled to emit air towards the non-stacked part of the first pole piece to make the first pole piece move along a second separation path and enter the first collection piece.

[0057] In a possible implementation, the feeding device disperses and conveys the material to the conveying device, including:

[0058] The rotation speed of the conveying disc of the feeding device is controlled to disperse the material under the rotation of the conveying disc;

[0059] The blowing angle and the wind speed of the second blowing mechanism of the feeding device are controlled to make the dispersed material on the conveying disc fall to the conveying device;

[0060] The conveying device conveys the material to the distributing device along a second direction.

[0061] In a possible implementation, the material distribution device performs negative pressure adsorption and blowing on the conveyed material to make the material in a single layer distribution, comprising:

[0062] The material in contact with the carrying area of the material distribution device is adsorbed by negative pressure adsorption, and the material not adsorbed on the carrying area is blown away from the carrying area by the second blowing structure to make the material on the carrying area in a single layer distribution;

[0063] The material blown away from the carrying area is recycled and conveyed to the material inlet of the material distribution device or the material inlet of the feeding device.

[0064] In a possible implementation, the material not adsorbed on the carrying area is blown away from the carrying area by the second blowing structure, comprising:

[0065] The first air knife of the second blowing structure forms a third air flow, and the third air flow blows the material not adsorbed on the carrying area in a direction opposite to the conveying direction of the third conveying mechanism;

[0066] The second air knife of the second blowing structure forms a fourth air flow, and the fourth air flow blows the side of the carrying area to blow the material not adsorbed on the carrying area away from the carrying area, recycle the material blown away from the carrying area, and convey the recycled material to the material distribution device.

[0067] In addition to the technical problems solved by the present application, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features, other technical problems solved by the present application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0068] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments of the present application or the prior art will be briefly introduced. Obviously, the drawings in the following description are only a part of the embodiments of the present application, and these drawings and the written description are not intended to limit the scope of the present application in any way, but to explain the present application to those skilled in the art by reference to specific embodiments. Those skilled in the art can obtain other drawings without creative labor.

[0069] FIG. 1 is a structural schematic diagram of the pole piece recycling device provided by the embodiments of the present application;

[0070] Fig. 2 is another structural schematic diagram of the pole piece recycling device provided by the embodiment of the present application;

[0071] Fig. 3 is still another structural schematic diagram of the pole piece recycling device provided by the embodiment of the present application;

[0072] Fig. 4 is a structural schematic diagram of the sorting device in the pole piece recycling device provided by the embodiment of the present application;

[0073] Fig. 5 is a schematic diagram of the identification device of the sorting device and part of the conveying device according to the embodiment of the present application;

[0074] Fig. 6 is a schematic diagram of the sorting device and the collecting device according to the embodiment of the present application;

[0075] Fig. 7 is a schematic diagram of the sorting device and part of the conveying device according to the embodiment of the present application;

[0076] Fig. 8 is a schematic diagram of the sorting device driving the first pole piece to move along the first separation path or the second separation path according to the embodiment of the present application;

[0077] Fig. 9 is a schematic diagram of the second pole piece moving along the set path through the sorting device according to the embodiment of the present application;

[0078] Fig. 10 is a schematic diagram of the sorting device driving the first pole piece in the first pole piece structure to move along the first separation path according to the embodiment of the present application;

[0079] Fig. 11 is a schematic diagram of the sorting device driving the first pole piece in the first pole piece structure to move along the second separation path according to the embodiment of the present application;

[0080] Fig. 12 is a schematic diagram of the sorting device driving the first pole piece in the second pole piece structure to move along the first separation path or the second separation path according to the embodiment of the present application;

[0081] Fig. 13 is a schematic diagram of the second pole piece moving along the set path through the sorting device in the third pole piece structure according to the embodiment of the present application;

[0082] Fig. 14 is a side view of a feeding device provided by the embodiment of the present application;

[0083] Fig. 15 is a side view of another feeding device provided by the embodiment of the present application;

[0084] Fig. 16 is a top view of the feeding device provided by the embodiment of the present application;

[0085] Fig. 17 is a side view of still another feeding device provided by the embodiment of the present application;

[0086] Fig. 18 is a structural schematic diagram of the feeding device and the distributing device provided by the embodiment of the present application;

[0087] Fig. 19 is a structural schematic diagram of a distributing device according to an embodiment of the present application;

[0088] Fig. 20 is a top view of a distributing device according to an embodiment of the present application;

[0089] Figs. 21-24 are flow schematic diagrams of a method for recovering pole pieces according to an embodiment of the present application.

[0090] Legend: 100 - feeding device; 111 - conveying turntable; 112 - driving member; 120 - second blowing mechanism; 131 - first end of first conveying mechanism; 132 - second end of first conveying mechanism; 133 - first bearing area; 1331 - turbulence area; 1332 - sink area; 134 - interface of flocculation layer; 140 - cover body; 141 - inlet; 142 - outlet; 143 - air outlet; 1431 - air suction device; 144 - filter screen; 150 - inlet channel; 160 - outlet groove; A - preset included angle; W - rotating direction of conveying turntable; L1 - first direction; L2 - second direction; L3 - third direction; L4 - fourth direction; H1 - first length; H2 - second length; 200 - distributing device; 211 - conveying belt; 212 - second bearing area; 213 - aperture; 214 - feeding end; 215 - discharging end; 220 - first blowing mechanism; 221 - first air knife; 222 - first air nozzle; 223 - second air knife; 224 - second air nozzle; 230 - adsorption mechanism; 231 - suction nozzle; 232 - pipeline; 240 - recovery structure; 10 - first pole piece; 20 - second pole piece; 30 - first laminated structure; 40 - second laminated structure; 50 - third laminated structure; 311 - conveying part; 312 - identification part; 313 - shielding cover; 314 - first air conveying mechanism; 315 - second air conveying mechanism; 320 - identification device; 321 - first identification member; 322 - second identification member; 330 - sorting device; 331 - first nozzle; 332 - second nozzle; 340 - collecting device; 341 - first collecting member; 3411 - first partition plate; 342 - second collecting member; 3421 - second partition plate; 400 - conveying device; 130 - first conveying mechanism; 210 - second conveying mechanism; 310 - third conveying mechanism. DETAILED DESCRIPTION

[0091] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0092] The pole piece recycling device provided by the embodiment of the application is mainly applied to the recycling process of the battery pole piece. After the battery is recycled, the battery is first disassembled, and the diaphragm and the pole piece material in which the positive pole piece and the negative pole piece are mixed together are separated. Because the positive pole piece and the negative pole piece are different in material and performance, the mixed positive pole piece (positive pole piece) and negative pole piece (negative pole piece) need to be sorted, so that the positive pole piece and the negative pole piece are recycled respectively.

[0093] For the convenience of description, the first pole piece can be set as one of the positive pole piece and the negative pole piece, the second pole piece can be set as the other one of the positive pole piece and the negative pole piece, and the type of the first pole piece is different from the type of the second pole piece.

[0094] FIG. 1 is a structural schematic view of the pole piece recycling device provided by the embodiment of the application.

[0095] Referring to FIG. 1, the pole piece recycling device provided by the embodiment of the application comprises a conveying device 400, a feeding device 100, a distributing device 200 and a sorting device 300. The feeding device 100 can be located upstream of the distributing device 200, and the sorting device 300 can be located downstream of the distributing device 200. The conveying device 400 conveys the material from the starting end to the terminal end, so that the material moves along the set path. For example, the conveying device 400 is located between the feeding device 100 and the sorting device 300, and the distributing device 200 can be located on the path conveyed by the conveying device 400. In the embodiment of the application, the conveying device 400 can be a conveying mechanism arranged between the feeding device 100 and the sorting device 300, or can be a plurality of independent conveying mechanisms.

[0096] The feeding device 100 comprises a feeding port. The feeding device 100 is used to receive the material entering from the feeding port and disperse the material in the rotating process to be conveyed to the conveying device 400. In this way, for light and thin material, such as mixed positive pole piece and negative pole piece, the dispersion of the material can be realized by the feeding device 100, so that the material is in a dispersed state and not in a stacked state.

[0097] The distributing device 200 can comprise a second bearing area 212 comprising a plurality of apertures arranged on the conveying device 400 and a first blowing mechanism 220. The second bearing area 212 is used to adsorb the lowermost material by negative pressure, and the first blowing mechanism 220 is used to blow the material not adsorbed on the bearing area to separate from the bearing area, so that the material is distributed in a single layer. In this way, the negative pressure adsorption and blowing of the distributing device 200 make the material be distributed in a single layer, which is beneficial to the subsequent sorting of different pole pieces in the material.

[0098] The sorting device 300 is used for receiving the single-layer material delivered by the distributing device 200, identifying different pole pieces in the single-layer material, separating the identified different pole pieces, and achieving the sorting purpose of the different pole pieces.

[0099] In the embodiment of the present application, the feeding device 100, the distributing device 200 and the sorting device 300 can be three independent devices, or can be integrated together and share the recycling device of the conveying device 400.

[0100] Therefore, the pole piece recycling device provided in the embodiment of the present application comprises the conveying device 400, the feeding device 100, the distributing device 200 and the sorting device 300. The feeding device 100 can receive the material entering from the inlet. The material can be mixed positive pole pieces and negative pole pieces. In order to disperse the received material, the feeding device 100 disperses the material during rotation to avoid the material stacking together. The dispersed material is delivered to the conveying device 400. For light and thin material, this can achieve dispersion. The distributing device 200 can make the material delivered by the conveying device 400 be distributed in a single layer under the action of negative pressure adsorption and blowing. This is beneficial to subsequent sorting of different pole pieces in the material. The sorting device 300 can first identify different pole pieces in the single-layer material delivered by the conveying device 400, and then sort the different pole pieces according to the identification information, so as to sort the positive pole pieces and the negative pole pieces. Therefore, the pole piece recycling device provided in the embodiment of the present application can realize efficient and accurate sorting of different pole pieces of the recycled battery through dispersion, single-layer adsorption and identification and separation, and improve the pole piece recycling efficiency.

[0101] In some examples, the conveying device 400 can be a conveying mechanism from the starting end of the material to the terminal end as shown in FIG. 1. In other examples, as shown in FIG. 2, the conveying device 400 can comprise a first conveying mechanism 130, a second conveying mechanism 210 and a third conveying mechanism 310. The first conveying mechanism 130, the second conveying mechanism 210 and the third conveying mechanism 310 can share one or two conveying belts. For example, as shown in FIG. 2, the second conveying mechanism 210 and the third conveying mechanism 310 can share one conveying belt, and the first conveying mechanism 130 is independent of the second conveying mechanism 210 and the third conveying mechanism 310, which are two independent conveying mechanisms. Alternatively, as shown in FIG. 3, the first conveying mechanism 130, the second conveying mechanism 210 and the third conveying mechanism 310 can be independently arranged, and the first conveying mechanism 130, the second conveying mechanism 210 and the third conveying mechanism 310 can be controlled independently.

[0102] In the embodiment of the present application, the number and cooperation relationship of the conveying mechanisms of the conveying device 400 are adjusted according to requirements, which are not limited in the embodiment of the present application.

[0103] In one possible implementation, referring to FIG. 4, the sorting device 300 can include an identification apparatus 320, a sorting apparatus 330, and a collecting apparatus 340.

[0104] For example, the third conveying mechanism 310 of the conveying device 400 can be used to carry and convey the mixed first pole piece 10 and second pole piece 20, and the identification apparatus 320 can be used to obtain the type and stacking order of the pole pieces located on the third conveying mechanism 310.

[0105] The sorting apparatus 330 can separate the mixed first pole piece 10 and second pole piece 20 according to the type and stacking order of the pole pieces, so that the collecting apparatus 340 can collect the first pole piece 10 and second pole piece 20 respectively, thereby achieving the sorting of the first pole piece 10 and second pole piece 20.

[0106] Referring to FIG. 4, in some possible implementations, the third conveying mechanism 310 can be used to convey the mixed pole pieces from the starting end of the third conveying mechanism 310 to the ending end of the third conveying mechanism 310.

[0107] The third conveying mechanism 310 can drive the pole pieces to move towards the ending end of the third conveying mechanism 310, and enable the pole pieces to have an initial speed, so that the pole pieces can be thrown out of the ending end of the third conveying mechanism 310 along the set path S.

[0108] For example, the conveying direction of the third conveying mechanism 310 can be set as a horizontal direction. The starting end of the third conveying mechanism 310 and the ending end of the third conveying mechanism 310 can be arranged along the horizontal direction.

[0109] Alternatively, the conveying direction of the third conveying mechanism 310 can be set as an inclined direction. The starting end of the third conveying mechanism 310 and the ending end of the third conveying mechanism 310 can be arranged along the inclined direction. For example, the height of the starting end of the third conveying mechanism 310 can be higher than the height of the ending end of the third conveying mechanism 310, or the height of the starting end of the third conveying mechanism 310 can be lower than the height of the ending end of the third conveying mechanism 310.

[0110] The third conveying mechanism 310 can be set as a one-stage third conveying mechanism 310. Alternatively, the third conveying mechanism 310 can be set as a multi-stage third conveying mechanism 310, so that the transmission direction of the pole pieces can be more flexible through the multi-stage third conveying mechanism 310.

[0111] Exemplarily, the third conveying mechanism 310 of the first stage can comprise a belt speed regulator. The third conveying mechanism 310 of the multiple stages can comprise a plurality of belt speed regulators connected in series, and the transmission directions of the plurality of belt speed regulators can be arranged in the same direction or in different directions. The upper surface of the belt speed regulator can be used to carry the mixed first and second pole pieces 10, 20 (see FIG. 5).

[0112] It should be noted that, as shown in FIG. 6, the set path S can be equivalent or approximately a parabola. When the third conveying mechanism 310 moves the pole pieces towards the terminal end of the third conveying mechanism 310, the pole pieces can have an initial speed, so that the pole pieces are thrown from the terminal end of the third conveying mechanism 310. When the initial speeds of the pole pieces are the same, different types of pole pieces can form the same or similar parabolas, so that the pole pieces can all move along the set path S.

[0113] The initial speed of the pole pieces can be equal to the moving speed of the third conveying mechanism 310. Moreover, the distance between the starting end of the third conveying mechanism 310 and the terminal end of the third conveying mechanism 310 can be lengthened, so as to lengthen the contact time of the pole pieces with the third conveying mechanism 310, so that the pole pieces can all have the same initial speed before moving to the terminal end of the third conveying mechanism 310, and thus be thrown along the set path S.

[0114] Exemplarily, as shown in FIG. 5, the third conveying mechanism 310 can be provided with a first gas conveying mechanism 314. The first gas conveying mechanism 314 is used to at least form a first gas flow, and the first gas flow is used to drive the pole pieces to adhere to the third conveying mechanism 310, so as to increase the friction between the pole pieces and the third conveying mechanism 310, so that the pole pieces are more likely to have the same initial speed as the transmission speed of the third conveying mechanism 310.

[0115] Exemplarily, the flow direction of the first gas flow can be perpendicular to the conveying direction of the third conveying mechanism 310. For example, the conveying direction of the third conveying mechanism 310 is arranged in the horizontal direction, and the flow direction of the first gas flow can be arranged in the vertical downward direction, so as to increase the pressure of the pole pieces on the third conveying mechanism 310 by the first gas flow, and increase the friction between the pole pieces and the third conveying mechanism 310.

[0116] Continuing to refer to FIG. 5, in some possible embodiments, the third conveying mechanism 310 along the transmission direction can comprise a conveying part 311 and an identification part 312 connected in series.

[0117] The identification part 312 can be located on the side of the conveying part 311 close to the terminal end of the third conveying mechanism 310, so that the mixed pole pieces can be transmitted to the identification part 312 by the conveying part 311. The identification part 312 can be used to correspond to the identification device 320, so that the identification device 320 can identify the pole pieces located in the identification part 312.

[0118] It should be noted that the third conveying mechanism 310 can be provided as a one-stage third conveying mechanism 310, and the conveying part 311 and the identification part 312 of the one-stage third conveying mechanism 310 can be integrally provided. The part of the one-stage third conveying mechanism 310 close to the starting end of the one-stage third conveying mechanism 310 can be used to form the conveying part 311, and the part of the one-stage third conveying mechanism 310 close to the ending end of the one-stage third conveying mechanism 310 and the third conveying mechanism 310 can be used to form the identification part 312.

[0119] Alternatively, the third conveying mechanism 310 can be provided as a multi-stage third conveying mechanism 310, and the part of the multi-stage third conveying mechanism 310 close to the starting end of the multi-stage third conveying mechanism 310 can be used to form the conveying part 311, and the part of the multi-stage third conveying mechanism 310 close to the ending end of the multi-stage third conveying mechanism 310 can be used to form the identification part 312.

[0120] For example, referring to FIG. 5, the conveying part 311 can be provided with a shielding cover 313. The shielding cover 313 can be used to separate the conveying part 311 and the identification part 312, reduce the influence of the conveying part 311 on the identification device 320 corresponding to the identification part 312, and ensure the accuracy of the identification result of the mixed pole pieces by the identification device 320.

[0121] The shielding cover 313 can surround a cavity with at least part of the conveying part 311. The cavity can be used to accommodate the first gas conveying mechanism 314, so that the first gas conveying mechanism 314 can output a first gas flow to the pole pieces located in the conveying part 311.

[0122] Alternatively, the first gas conveying mechanism 314 can also be installed on the shielding cover 313. The gas inlet of the first gas conveying mechanism 314 faces the outside of the shielding cover 313, and the gas outlet of the first gas conveying structure can be provided in the cavity and faces the pole pieces located in the conveying part 311.

[0123] The shielding cover 313 can form a through opening with the conveying part 311, so that the pole pieces located in the conveying part 311 move from the cavity to the identification part 312 through the through opening. The through opening can be provided above the third conveying mechanism 310, and the height of the through opening in the vertical direction can be adjusted according to the thickness of the pole pieces, and the embodiments of the present application do not make further limitations.

[0124] It should be noted that when the pole pieces move from the conveying part 311 to the identification part 312, the speed of the pole pieces can be equal to the speed of the third conveying mechanism 310. Alternatively, when the pole pieces move from the conveying part 311 to the identification part 312, the speed of the pole pieces can be less than the speed of the third conveying mechanism 310, and when the pole pieces move to the ending end of the third conveying mechanism 310, the speed of the pole pieces can be equal to the speed of the third conveying mechanism 310.

[0125] For example, referring to FIG. 5, the conveying part 311 can be provided with a second air conveying mechanism 315. The air conveying end of the first air conveying mechanism 314 and the air conveying end of the second air conveying mechanism 315 can be directed towards the cavity.

[0126] The second air conveying mechanism 315 can be used to form a second air flow. The flow direction of the second air flow can be opposite to the flow direction of the first air flow, so as to balance the air pressure in the cavity. It should be noted that the flow direction of the second air flow can not be directed towards the pole pieces located in the conveying part 311, so that the movement of the pole pieces located in the conveying part 311 towards the identification part 312 is more stable.

[0127] Referring to FIG. 5, in some possible embodiments, the identification device 320 can be used at least to identify the first laminated structure 30 located in the third conveying mechanism 310. The first laminated structure 30 can include a first pole piece 10 and a second pole piece 20 laminated with each other.

[0128] Referring to FIG. 5, the first pole piece 10 can be located below the second pole piece 20, or the first pole piece 10 can be located above the second pole piece 20.

[0129] It should be noted that after the material is subjected to the negative pressure adsorption and blowing of the material distribution device 200, and is transmitted towards the sorting device 300, most of the pole pieces are distributed in a single layer. However, if there is a small overlapping area (for example, less than 10% overlapping) between some pole pieces, the small overlapping area causes most of the area of the pole pieces to be adsorbed by the negative pressure and not to be blown away. At this time, in order to better sort the laminated structure of the part, the identification device is used to identify the laminated structure.

[0130] The identification device 320 can be used at least to identify the laminating order of the first pole piece 10 and the second pole piece 20 in the first laminated structure 30, so that the subsequent sorting device 330 can separate the laminated first pole piece 10 and the second pole piece 20 in the first laminated structure 30 according to the laminating order of the first pole piece 10 and the second pole piece 20.

[0131] It should be noted that the number of pole pieces in the first laminated structure 30 can be set to two. The two pole pieces include one first pole piece 10 and one second pole piece 20. One first pole piece 10 can be located above one second pole piece 20, or one first pole piece 10 can be located below one second pole piece 20.

[0132] Alternatively, the number of pole pieces in the first laminated structure 30 can also be set to more than three. The more than three pole pieces can include one first pole piece 10 and a plurality of second pole pieces 20. One first pole piece 10 can be located above the plurality of second pole pieces 20, or one first pole piece 10 can be located below the plurality of second pole pieces 20.

[0133] Alternatively, the number of the pole pieces in the first pole piece structure 30 can be set to more than three. The more than three pole pieces can include a plurality of the first pole pieces 10 and one second pole piece 20. The one second pole piece 20 can be arranged above the plurality of the first pole pieces 10, or the one second pole piece 20 can be arranged below the plurality of the first pole pieces 10.

[0134] Alternatively, the number of the pole pieces in the first pole piece structure 30 can be set to more than four. The more than four pole pieces can include a plurality of the first pole pieces 10 and a plurality of the second pole pieces 20. The plurality of the first pole pieces 10 can be arranged above the plurality of the second pole pieces 20, or the plurality of the first pole pieces 10 can be arranged below the plurality of the second pole pieces 20.

[0135] For example, the identification device 320 can be reused to identify the single-layer first pole pieces 10. And / or, the identification device 320 can be reused to identify the second pole piece structure 40 including at least two first pole pieces 10 stacked together.

[0136] And / or, the identification device 320 can be reused to identify the single-layer second pole pieces 20. And / or, the identification device 320 can be reused to identify the third pole piece structure 50 including at least two second pole pieces 20 stacked together.

[0137] By using the above technical solutions, the identification device 320 can identify the first pole piece structure 30, the single-layer first pole pieces 10, the single-layer second pole pieces 20, the second pole piece structure 40 and the third pole piece structure 50. The sorting device 330 can separate the first pole pieces 10 in the first pole piece structure 30, the single-layer first pole pieces 10 and the second pole piece structure 40 from the second pole pieces 20 in the first pole piece structure 30, the single-layer second pole pieces 20 and the third pole piece structure 50, so as to separate the mixed first pole pieces 10 and second pole pieces 20.

[0138] Referring to FIG. 5, in some possible embodiments, the identification device 320 can include a first identification member 321 and a second identification member 322. The first identification member 321 and the second identification member 322 can be used to face the pole pieces located on the third conveying mechanism 310, so as to identify the types of the pole pieces and the stacking order of the stacked pole pieces by the first identification member 321 and the second identification member 322.

[0139] For example, the first identification member 321 is used to acquire the stacked pole pieces and the single-layer pole pieces.

[0140] The first identification member 321 can be configured as an image acquisition device such as a camera. The first identification member 321 can determine whether the pole piece is arranged in a single layer or stacked with other pole pieces according to the relative position between the pole piece and other pole pieces by acquiring images of the pole pieces on the third conveying mechanism 310.

[0141] For example, the second identification member 322 can be configured to identify the pole piece as the first pole piece 10 or the second pole piece 20 according to the material of the first pole piece 10 and the second pole piece 20.

[0142] For example, the second identification member 322 can be configured as a computed tomography (CT) device. The second identification member 322 can determine the type of the pole piece according to the material of the pole piece.

[0143] It is to be understood that, as for the arrangement order of the first identification member 321 and the second identification member 322 in the identification device 320, the first identification member 321 can be arranged on the side of the second identification member 322 away from the terminal end of the third conveying mechanism 310. Alternatively, the second identification member 322 can be arranged on the side of the first identification member 321 away from the terminal end of the third conveying mechanism 310.

[0144] When the identification time of the first identification member 321 is longer than that of the second identification member 322, the first identification member 321 can be arranged on the side of the second identification member 322 away from the terminal end of the third conveying mechanism 310. When the identification time of the second identification member 322 is longer than that of the first identification member 321, the second identification member 322 can be arranged on the side of the first identification member 321 away from the terminal end of the third conveying mechanism 310, so as to ensure that the first identification member 321 and the second identification member 322 can complete the identification process of the pole piece when the pole piece moves to the terminal end of the third conveying mechanism 310.

[0145] It is to be noted that the identification time of the first identification member 321 can include the time for the first identification member 321 to acquire images of the pole pieces on the third conveying mechanism 310 and the time for the first identification member 321 to determine whether the pole piece is arranged in a single layer or stacked with other pole pieces. The identification time of the second identification member 322 can include the time for the second identification member 322 to determine the type of the pole piece according to the material of the pole piece.

[0146] For example, the first identification member 321 can be arranged on the side of the second identification member 322 away from the terminal end of the third conveying mechanism 310.

[0147] The third conveying mechanism 310 can move the pole piece towards the end of the third conveying mechanism 310, the first identification member 321 can identify the single-layer pole piece, and the second identification member 322 can identify the type of the single-layer pole piece, so that the identification device 320 determines whether the single-layer pole piece is the single-layer first pole piece 10 or the single-layer second pole piece 20.

[0148] The first identification member 321 can also identify the pole pieces stacked together, and the second identification member 322 can identify the type of each pole piece in the stacked pole pieces. If all the pole pieces in the stacked pole pieces are the first pole piece 10, the identification device 320 can determine that the stacked pole pieces are the second stacked structure 40. If all the pole pieces in the stacked pole pieces are the second pole piece 20, the identification device 320 can determine that the stacked pole pieces are the third stacked structure 50.

[0149] If all the first pole pieces 10 in the stacked pole pieces are stacked above the second pole pieces 20, or all the first pole pieces 10 in the stacked pole pieces are stacked below the second pole pieces 20, the identification device 320 can determine that the stacked pole pieces are the first stacked structure 30, and can determine the stacking order of the pole pieces in the first stacked structure 30.

[0150] It is easy to understand that in the identification device 320, the number of the first identification member 321 and the number of the second identification member 322 can be one or more, so that the first identification member 321 and the second identification member 322 can realize the acquisition of the type and the stacking order of all the pole pieces.

[0151] Referring to FIG. 4, in some possible embodiments, the sorting device 330 can be arranged at the end of the third conveying mechanism 310 of the conveying device 400. The sorting device 330 can be used to move the first pole piece 10 in the first stacked structure 30 along a separation path according to the stacking order of the pole pieces. The separation path can deviate from the set path S, so that the first pole piece 10 and the second pole piece 20 in the first stacked structure 30 are separated.

[0152] It should be noted that when the sorting device 330 does not move the first pole piece 10, the first pole piece 10 can be thrown from the end of the third conveying mechanism 310 along the set path S, so that the movement path of the first pole piece 10 is the same as that of the second pole piece 20, and the first pole piece 10 and the second pole piece 20 are mixed and enter the collecting device 340.

[0153] By setting the sorting device 330, the sorting device 330 can drive the first pole piece 10 in the first lamination structure 30 to move along a separation path, so that the movement path of the first pole piece 10 is different from that of the second pole piece 20, so that the first pole piece 10 and the second pole piece 20 in the first lamination structure 30 after separation can be collected by the collecting device 340 respectively, so as to obtain the first pole piece 10 and the second pole piece 20 after separation in the first lamination structure 30.

[0154] For example, the sorting device 330 can change the movement path of the first pole piece 10, so that the first pole piece 10 can move from the set path S to the separation path. The sorting device 330 can drive the first pole piece 10 in the first lamination structure 30 with different stacking sequences to move along the separation path.

[0155] For example, referring to FIG. 7, the sorting device 330 can include a first nozzle 331 and a second nozzle 332 matched with each other, so as to change the movement trajectory of the first pole piece 10 in the first lamination structure 30 through the first nozzle 331 and the second nozzle 332 matched with each other.

[0156] It should be noted that by controlling the working time sequence of the third conveying mechanism 310, the identification device 320 and the sorting device 330, the sorting device 330 can sort the first lamination structure 30, thereby reducing the possibility of errors of the first nozzle 331 and the second nozzle 332 of the sorting device 330.

[0157] For example, the time for the third conveying mechanism 310 to drive the pole piece to pass through the identification device 320 and move to the sorting device 330 is set as a preset time.

[0158] When the pole piece moves to the identification device 320, according to the position information, stacking sequence information and category information of the pole piece given by the identification device 320, the specific position that needs to be blown can be output, for example, as shown in the schematic diagram of FIG. 8, the first nozzle 331 can be opened to blow upward the unstacked area of the first pole piece 10; the speed of the third conveying mechanism 310 is fixed, the position of the identification device 320 is fixed, and through the category information and the unstacked position identified, the time when the first nozzle or the second nozzle is opened can be obtained, so that the sorting of the pole piece can be realized through the sorting device 330.

[0159] The first nozzle 331 can be arranged to blow upward. The first nozzle 331 can be used at least to change the movement trajectory of the first pole piece 10 above the second pole piece 20 in the first lamination structure 30, so that the first pole piece 10 above the second pole piece 20 can move from the set path S to the first separation path D1.

[0160] It is easy to understand that the first separation path D1 is away from the third conveying mechanism 310 relative to the set path S.

[0161] Referring to FIG. 8, the first nozzle 331 can blow air upward. The first nozzle 331 drives the first pole piece 10 to move upward. When the initial speed of the first pole piece 10 in the horizontal direction is constant, the moving distance of the first pole piece 10 in the horizontal direction increases, and the movement trajectory of the first pole piece 10 (i.e., the first disengagement path D1 in FIG. 7) is away from the end of the third conveying mechanism 310 relative to the set path S.

[0162] Referring to FIG. 9, the second nozzle 332 can blow air downward. The second nozzle 332 can be used at least to change the movement trajectory of the first pole piece 10 located below the second pole piece 20 in the first pole piece structure 30, so that the first pole piece 10 located below the second pole piece 20 can move from the set path S to the second disengagement path D2.

[0163] It is easy to understand that the second disengagement path D2 is close to the third conveying mechanism 310 relative to the set path S.

[0164] The second nozzle 332 can blow air downward, and the second nozzle 332 drives the first pole piece 10 to move downward. When the initial speed of the first pole piece 10 in the horizontal direction is constant, the moving distance of the first pole piece 10 in the horizontal direction decreases, and the movement trajectory of the first pole piece 10 (i.e., the second disengagement path D2 in FIG. 7) is close to the end of the third conveying mechanism 310 relative to the set path S.

[0165] It is worth mentioning that the first nozzle 331 and the second nozzle 332 can be used at least to blow toward the part of the first pole piece 10 on which the second pole piece 20 is not stacked, so as to improve the effect of changing the movement trajectory of the first pole piece 10 by the first nozzle 331 and the second nozzle 332, and to reduce the possibility of the second pole piece 20 in the first stacking structure moving away from the set path S, and to reduce the sorting error rate of the sorting device 330.

[0166] It should be noted that the blowing positions of the first nozzle 331 and the second nozzle 332 can consider the arrangement of the first pole piece 10 and the second pole piece 20 in the first pole piece structure 30 in the blowing direction of the first nozzle 331 and the second nozzle 332.

[0167] For example, referring to FIG. 10, the first nozzle 331 and the second nozzle 332 blow the first pole piece 10 in the first pole piece structure 30, and the blowing direction of the first nozzle 331 and the second nozzle 332 can be arranged out of phase with the second pole piece 20. The airflow blown by the first nozzle 331 and the second nozzle 332 does not blow toward the second pole piece 20, so that the second pole piece 20 does not interfere with the movement of the first pole piece 10 along the disengagement path, thereby reducing the error rate of the pole piece sorting device 300.

[0168] In some possible embodiments, referring to FIG. 8, when the single-layer first pole piece 10 moves to the sorting device 330, any one of the first nozzle 331 and the second nozzle 332 can blow air towards the single-layer first pole piece 10, so as to drive the single-layer first pole piece 10 to change the motion trajectory, so that the single-layer first pole piece 10 can move along the first separation path D1 or the second separation path D2, thereby achieving separation of the single-layer first pole piece 10 from the second pole piece 20.

[0169] Referring to FIG. 12, when the second stack structure 40 moves to the sorting device 330, any one of the first nozzle 331 and the second nozzle 332 can blow air towards the second stack structure 40, so as to drive the second stack structure 40 to change the motion trajectory, so that the first pole piece 10 in the second stack structure 40 can move along the first separation path D1 or the second separation path D2.

[0170] Referring to FIG. 13, when the single-layer second pole piece 20 or the third stack structure 50 moves to the sorting device 330, neither the first nozzle 331 nor the second nozzle 332 blows air, so that the single-layer second pole piece 20 or the third stack structure 50 can continue to move along the set path S, thereby separating the single-layer second pole piece 20 or the third stack structure 50 from the first pole piece 10.

[0171] In some possible embodiments, the number of the first nozzles 331 and the second nozzles 332 can be one or more. One first nozzle 331 and one second nozzle 332 can form a nozzle group, and a plurality of nozzle groups can be arranged along the width direction of the third conveying mechanism 310, so as to improve the sorting efficiency of the sorting device 330.

[0172] The positions of the first nozzles 331 and the second nozzles 332 can be determined according to the position of the set path S. For example, when the pole piece moves along the set path S, the speed of the pole piece in the horizontal direction remains unchanged, and the speed of the pole piece in the vertical direction gradually increases.

[0173] When the speed of the pole piece in the horizontal direction is equal to the speed of the pole piece in the vertical direction, the pole piece can be located at a set position of the set path S. The first nozzles 331 and the second nozzles 332 can be arranged above the set position, so as to make the change process of the motion trajectory of the pole piece more stable and reduce the sorting error rate of the sorting device 330.

[0174] For example, the air outlet direction of the first nozzle 331 can be towards the set path S. The air outlet direction of the first nozzle 331 can be arranged vertically upwards, or the air outlet direction of the first nozzle 331 can also be arranged obliquely. The air outlet direction of the first nozzle 331 can deviate from the second nozzle 332, so as to reduce the interference of the air outlet of the first nozzle 331 on the second nozzle 332.

[0175] The air outlet direction of the second nozzle 332 can be vertically towards the set path S. The air outlet direction of the second nozzle 332 can deviate from the first nozzle 331 to reduce the interference of the air outlet of the second nozzle 332 on the first nozzle 331.

[0176] Exemplarily, the single-layer material device 200 can be arranged at the starting end of the third conveying mechanism 310, so that the stacking type of the pole pieces on the third conveying mechanism 310 can be controlled by the single-layer material device 200, the number of the pole pieces stacked on the third conveying mechanism 310 is not more than two, so that the stacking type of the pole pieces on the third conveying mechanism 310 is set as the single-layer first pole piece 10, the single-layer second pole piece 20, the first stacking structure 30, the second stacking structure 40, and the third stacking structure 50, so that the pole piece sorting device 300 can be applicable to all the pole pieces on the third conveying mechanism 310, thereby realizing the sorting of the first pole piece 10 and the second pole piece 20.

[0177] In some possible embodiments, if it is necessary to ensure the sorting accuracy of one of the first pole piece 10 and the second pole piece 20, for example, it is necessary to ensure the sorting accuracy of the first pole piece 10, the blowing mode of the first nozzle 331 and the second nozzle 332 can be controlled to make the use of the pole piece sorting device 300 more convenient.

[0178] Exemplarily, a plurality of pole pieces can be stacked to form a fourth stacking structure, wherein the fourth stacking structure can include at least one first pole piece 10 and at least two second pole pieces 20, wherein the at least one first pole piece 10 is located between the two second pole pieces 20, that is, the first surface of the first pole piece 10 is attached to the second pole piece 20, and the second surface of the first pole piece 10 is attached to the second pole piece 20.

[0179] A plurality of pole pieces can be stacked to form a fifth stacking structure, wherein the fifth stacking structure can include at least one second pole piece 20 and at least two first pole pieces 10, wherein the at least one second pole piece 20 is located between the two first pole pieces 10, that is, the first surface of the second pole piece 20 is attached to the first pole piece 10, and the second surface of the second pole piece 20 is attached to the first pole piece 10.

[0180] When the fourth stacking structure and the fifth stacking structure move to the first nozzle 331 and the second nozzle 332, the first nozzle 331 and the second nozzle 332 can not spray the fourth stacking structure and the fifth stacking structure, so that the fourth stacking structure and the fifth stacking structure move along the set path S, thereby ensuring the sorting accuracy of the first pole piece 10. Referring to FIG. 6, in some possible embodiments, the collecting device 340 can include a first collecting piece 341 and a second collecting piece 342.

[0181] The first collecting member 341 can be arranged on the disengagement path, and can be used to receive the first pole piece 10. The second collecting member 342 can be arranged on the setting path S, and can be used to receive the second pole piece 20, so that the first pole piece 10 and the second pole piece 20 separated in phase can be obtained by the collecting device 340.

[0182] For example, the first nozzle 331 is used to drive the first pole piece 10 to move along the first disengagement path D1, and the second nozzle 332 is used to drive the first pole piece 10 to move along the second disengagement path D2, so that the disengagement path includes the first disengagement path D1 and the second disengagement path D2. The first disengagement path D1 is away from the third conveying mechanism 310 relative to the setting path S, and the second disengagement path D2 is close to the third conveying mechanism 310 relative to the setting path S.

[0183] The first collecting member 341 can include a first part and a second part arranged at intervals. The first part of the first collecting member 341 can be arranged on the side of the second collecting member 342 away from the third conveying mechanism 310, and can be arranged on the first disengagement path D1 correspondingly, and can be used to collect the first pole piece 10 moving along the first disengagement path D1.

[0184] The second part of the first collecting member 341 can be arranged on the side of the second collecting member 342 close to the third conveying mechanism 310, and can be arranged on the second disengagement path D2 correspondingly, and can be used to collect the first pole piece 10 moving along the second disengagement path D2.

[0185] For example, the first part of the first collecting member 341 can be provided with a first partition plate 3411. The end of the first partition plate 3411 away from the first collecting member 341 can be arranged upwardly inclined toward the third conveying mechanism 310.

[0186] The first partition plate 3411 can be arranged between the first disengagement path D1 and the setting path S, so that the first pole piece 10 moving along the first disengagement path D1 can move along the first partition plate 3411 to the first part of the first collecting member 341, thereby reducing the possibility of the first pole piece 10 falling into the second collecting member 342.

[0187] The first partition plate 3411 can be movably connected to the first part of the first collecting member 341. The first end of the first partition plate 3411 away from the first collecting member 341 can be moved in the direction close to or away from the third conveying mechanism 310. In this way, the relative position of the first partition plate 3411 can be adjusted, thereby reducing the possibility of the first pole piece 10 being blocked by the first partition plate 3411 into the second collecting member 342.

[0188] And / or, the second collecting member 342 can be provided with a second partition plate 3421. An end of the second partition plate 3421 away from the second collecting member 342 can be provided upwardly inclined towards the third conveying mechanism 310.

[0189] The second partition plate 3421 can be provided between the setting path S and the second disengaging path D2. So that the second pole piece 20 moving along the setting path S can move along the second partition plate 3421 into the second collecting member 342, thereby reducing the possibility of the second pole piece 20 falling into the second part of the first collecting member 341.

[0190] The second partition plate 3421 can be movably connected to the second collecting member 342. An end of the second partition plate 3421 away from the second collecting member 342 can be moved in a direction close to or away from the third conveying mechanism 310. In this way, the relative position of the second partition plate 3421 can be adjusted, thereby reducing the possibility of the second partition plate 3421 blocking the second pole piece 20 into the second part of the first collecting member 341.

[0191] In summary, when sorting the pole pieces by the pole piece sorting device 300 to distinguish the positive pole pieces and the negative pole pieces in the mixed plurality of pole pieces, the mixed first pole piece 10 and the second pole piece 20 can be transported from the starting end of the third conveying mechanism 310 to the ending end of the third conveying mechanism 310 by the third conveying mechanism 310, so that the pole pieces have the same initial speed, so that the pole pieces are thrown out of the ending end of the third conveying mechanism 310 along the setting path S.

[0192] Then the first stack structure 30, the single-layer first pole piece 10, the single-layer second pole piece 20, the second stack structure 40 and the third stack structure 50 in the pole pieces located at the third conveying mechanism 310 can be identified by the identification device 320; and the stacking order of the first pole piece 10 and the second pole piece 20 in the first stack structure 30 is identified by the identification device 320, so as to determine that the first pole piece 10 is located above the second pole piece 20, or the first pole piece 10 is located below the second pole piece 20.

[0193] Subsequently, according to the stacking order of the first pole piece 10 and the second pole piece 20 in the first stack structure 30, the first pole piece 10 in the first stack structure 30 is driven to move along the first disengaging path D1 or the second disengaging path D2 by the first nozzle 331 and the second nozzle 332 of the sorting device 330, the first disengaging path D1 and the second disengaging path D2 deviate from the setting path S, so as to separate the first pole piece 10 and the second pole piece 20 in the first stack structure 30.

[0194] The first and second pole pieces 10 and 10 in the single layer and the first pole piece 10 in the second and third pole piece structures 40 and 50 can be moved along the first and second separation paths D1 and D2 by the first and second nozzles 331 and 332 of the sorting device 330, and the second pole piece 20 in the single layer moves along the set path S, so that the separation process of the first and second pole pieces 10 and 20 is realized.

[0195] The first pole pieces 10 are collected by the first collecting member 341, and the second pole pieces 20 are collected by the second collecting member 342, so that the sorting of the stacked positive and negative pole pieces is realized, the possibility of misjudgment of the pole piece sorting device 300 is reduced, and the error rate of the pole piece sorting device 300 is reduced.

[0196] In the related art, the feeder is generally suitable for feeding of bulk granular materials, and the feeding effect of sheet-shaped light and thin materials is poor, and the materials are often stacked and discharged or fed in lumps, which is not suitable for continuous and uniform feeding working conditions. Due to the physical characteristics of sheet-shaped light and thin materials, the natural stacking state, and the mutual interlaced stacking, the bulk characteristics of the bulk materials are actually lost, and due to the light and thin materials, the vibration throwing force of the vibration feeder is actually unable to be effectively transmitted to the materials, resulting in that the materials are accumulated in the vibration feeder, and the actual feeding effect is relied on the extrusion of the subsequent materials. Therefore, the present application provides a feeding device 100 which can solve the above-mentioned stacking feeding technical problems.

[0197] Referring to FIG. 14, the feeding device 100 comprises a second blowing mechanism 120 and a conveying turntable 111 which can rotate in the horizontal direction. Specifically, the rotating direction W of the conveying turntable can be seen from FIG. 16. The second blowing mechanism 120 can be, for example, an air knife or other device that changes the movement state of the materials by air flow. Other physical devices that can achieve this function can also be used.

[0198] The conveying turntable 111 is used to receive the materials entering from the material inlet 141 and to disperse the materials during rotation. Specifically, in one possible implementation, the conveying turntable 111 can be opposite to the material inlet 141 of the feeding device 100.

[0199] It can be understood that in the present application, the feeding amount can be controlled by controlling the rotating speed of the conveying turntable 111.

[0200] The second blowing mechanism 120 can be located above the conveying turntable 111, and the second blowing mechanism 120 is used to blow at least part of the material on the conveying turntable 111 to be separated from the conveying turntable 111 along the first direction L1 during the rotation of the conveying turntable 111.

[0201] In a possible implementation, the first direction L1 is opposite to the direction of the linear velocity of the conveying turntable 111 during the rotation. The second blowing mechanism 120 blows along the direction opposite to the linear velocity of the conveying turntable 111, and the movement of the light and thin material against the wind is conducive to generating greater upward force, and the generation of the upward force is conducive to the peeling of the upper layer of the material.

[0202] In this way, when the material is fed into the feeding device 100 through the feeding port 141, the material is dispersed by the rotation of the conveying turntable 111. Since the second blowing mechanism 120 is arranged above the conveying turntable 111, the blowing direction of the second blowing mechanism 120 is opposite to the direction of the linear velocity of the conveying turntable 111, and the second blowing mechanism 120 can peel the uppermost layer of the material in the material.

[0203] It should be noted that, in some embodiments, the conveying turntable 111 can be a disc, a ring-shaped disc, a rectangular disc, or can also be a ring-shaped belt or a rectangular combined belt to achieve the effect of feeding the material by the conveying turntable 111. As long as the effect of circulating feeding can be achieved. The second blowing mechanism 120 only blows the upper layer of the material to be separated, and the remaining material can be moved to the position below the second blowing mechanism 120 again through the circulating conveying turntable.

[0204] In the embodiment of the present application, the first end 131 of the first conveying mechanism 130 of the conveying device 400 is connected to the conveying turntable 111, and the second end 132 of the first conveying mechanism 130 extends along the second direction L2. The first conveying mechanism 130 is used to receive the material separated from the conveying turntable 111 and convey the material along the second direction L2. The first conveying mechanism 130 can finally output the material blown and peeled by the air flow to achieve feeding.

[0205] It can be understood that, in the embodiment of the present application, as shown in FIG. 15, the blowing direction of the second blowing mechanism 120 is the third direction L3, and the third direction L3 and the first direction L1 can form a preset included angle A, and the preset included angle A can be an acute angle. The preset included angle A between the second direction L2 and the first direction L1 determines the thickness of the material peeling, and the second direction L2 and the first direction L1 are limited to an acute angle, which can avoid that the blowing of the second blowing mechanism 120 is mainly in the form of underpressure when the angle is too large, and the material cannot be peeled.

[0206] In the embodiment of the present application, the first direction L1 is the blowing direction of the second blowing mechanism 120, the second direction L2 is the horizontal direction, and the included angle between the blowing direction of the second blowing mechanism 120 and the horizontal direction is the cutting-in angle of the air flow generated by the second blowing mechanism 120. By controlling the cutting-in angle of the air flow generated by the second blowing mechanism 120, the peeling thickness can be controlled.

[0207] It can be understood that the blowing direction of the second blowing mechanism 120 is opposite to the linear velocity direction of the blowing point position on the conveying turntable 111, and is in the same direction as the conveying direction of the first conveying mechanism 130.

[0208] Specifically, after the material is fed into the feeding device 100 through the feeding port 141, the material is dispersed by the rotation of the conveying turntable 111. Since the second blowing mechanism 120 is arranged above the conveying turntable 111, the blowing direction of the second blowing mechanism 120 is opposite to the linear velocity direction of the conveying turntable 111, and the blowing direction of the second blowing mechanism 120 and the horizontal direction form a certain included angle (i.e., a preset included angle A). The second blowing mechanism 120 can peel the uppermost layer of the material and blow it to the first conveying mechanism 130 for conveying along the second direction L2 to achieve final discharging.

[0209] In the embodiment of the present application, the angle of the preset included angle A can be 10-30 degrees. For example, the angle of the preset included angle A can be 10 degrees, 15 degrees, 20 degrees, 25 degrees, or 30 degrees, etc. The embodiment of the present application is not limited thereto and is not limited to the above examples.

[0210] The second blowing mechanism 120 is arranged along the radius direction and the width direction of the conveying turntable 11. As shown in FIG. 16, the second blowing mechanism 120 is parallel to the width direction of the first conveying mechanism 130, so that the second blowing mechanism 120 can sweep the material on the conveying turntable with the maximum area and change the motion state of the material from the conveying turntable to the second conveying mechanism.

[0211] It should be noted that the numerical values and numerical ranges involved in the present application are approximate values, and there can be a certain range of errors due to the manufacturing process, which can be considered negligible by those skilled in the art.

[0212] In the embodiment of the present application, referring to FIG. 15, the feeding device 100 can further include a cover body 140. As shown in FIG. 15, the cover body 140 can cover at least part of the first conveying mechanism 130 and the conveying turntable 111, and the second blowing mechanism 120 is arranged on the cover body 140.

[0213] In addition, the cover body 140 can be provided with a feeding port 141 and a discharging port 142, and the discharging port 142 is close to the second end 132 of the first conveying mechanism 130.

[0214] In the embodiment of the present application, referring to FIG. 15, the feeding device 100 can further include at least one air outlet 143, wherein the air outlet 143 can be located above the first conveying mechanism 130, and the air outlet 143 is used to release the air flow blown by the second blowing mechanism 120, so that the material separated from the conveying turntable 111 falls onto the first conveying mechanism 130.

[0215] In a possible implementation, the air outlet 143 can be formed on the cover 140.

[0216] In addition, it can be understood that the air flow extension line of the blowing direction of the second blowing mechanism 120 and the extension direction of the first conveying mechanism 130 form an intersection point, and the orthographic projection of the air outlet on the first conveying mechanism 130 can be located between the second end 132 of the first conveying mechanism 130 and the intersection point.

[0217] In addition, in some embodiments, the air outlet 143 can be further provided with an air suction device 1431, for example, a fan or the like.

[0218] It should be noted that in the embodiment of the present application, the air outlet 143 can be formed in the fourth direction L4, and the fourth direction L4 can be towards the conveying turntable 111.

[0219] By providing the air outlet 143 above the first conveying mechanism 130, the air flow blown by the second blowing mechanism 120 can be discharged through the air outlet 143, and the air flow along the fiber flow layer boundary line 134 can be formed in the channel formed between the cover 140 and the first conveying mechanism 130, and the light and thin material such as dust can be sucked and removed to prevent suspension in the air.

[0220] Specifically, the stripped material is blown into the first conveying mechanism 130, the air outlet 143 is provided above the first conveying mechanism 130, the air outlet 143 is arranged obliquely towards the second blowing mechanism 120, and after the air outlet 143 is arranged behind the blowing of the second blowing mechanism 120, the air flow at the air outlet 143 gradually flows along the fiber flow layer boundary line 134.

[0221] It can be understood that the position of the air outlet 143 is related to the blowing direction of the second blowing mechanism 120 and the size of the air flow, and the position of the air outlet 143 can be adjusted and determined through actual test, so that the air outlet 143 can be used to release the air flow blown by the second blowing mechanism 120, and the air flow in the same direction as the second direction L2 is formed in the channel, the material quickly separates from the air flow and falls onto the first conveying mechanism 130 by gravity, the release of the air flow does not interfere with the movement of the material, and the thin and light material such as dust can be further removed.

[0222] In the embodiment of the present application, the first conveying mechanism 130 can be a transmission belt. The transmission belt can be a rubber transmission belt, or a metal transmission belt, but is not limited to the above two, for example, can also be a plastic transmission belt, etc.

[0223] It can be understood that, referring to Figure 16, in the embodiment of the present application, a filter screen 144 can also be arranged at the position of the air outlet 143, and the filter screen 144 can play a screening and isolation role.

[0224] Referring to Figure 17, in the embodiment of the present application, the conveying turntable 111 can further include a driving member 112, wherein the driving member 112 is used to drive the conveying turntable 111 to rotate in the horizontal direction.

[0225] The feeding device 100 can further include a feeding channel 150, wherein the feeding channel 150 is communicated with the feeding port 141, one end of the feeding channel 150 is opposite to the conveying turntable 111, and the inner diameter of the feeding channel 150 gradually decreases from the feeding port 141 to the conveying turntable 111.

[0226] In addition, in some embodiments, referring to Figure 17, the side of the conveying turntable 111 for receiving the material can be arc-shaped, and the thickness of the conveying turntable 111 can gradually decrease from the center of the conveying turntable 111 to the outer edge of the conveying turntable 111. In this way, the conveying turntable 111 is a butterfly-shaped disc, and when rotating and dispersing, the butterfly-shaped disc has a curved arc, so that the light and thin material is more easily to form a gap between the butterfly-shaped disc and the upper surface of the conveying turntable 111, so as to be blown away by the airflow blown by the second blowing mechanism 120.

[0227] In the embodiment of the present application, the feeding device 100 further includes a discharging chute 160, wherein, referring to Figure 17, the discharging chute 160 has a discharging port 142, the discharging port 142 is opposite to one end of the first conveying mechanism 130 away from the conveying turntable 111, and the bottom of the discharging chute 160 is lower than the upper surface of the first conveying mechanism 130. It should be noted that when the conveying device 400 is a conveying belt, the discharging chute 160 of the feeding device 100 can not be provided.

[0228] Figure 17 is a side view of another feeding device 100 provided by the embodiment of the present application.

[0229] As shown in FIG. 17, in the embodiment of the present application, the first conveying mechanism 130 of the conveying device 400 can include a first bearing area 133, wherein the first bearing area 133 can include a turbulence area 1331 and a sink area 1332, one end of the turbulence area 1331 is connected with the conveying turntable 111, the other end of the turbulence area 1331 is connected with one end of the sink area 1332, and the other end of the sink area 1332 is used for conveying the material along the second direction L2 to the discharge port 142 of the feeding device 100.

[0230] It should be noted here that when the cover 140 is provided with the air port 143, the first bearing area 133 of the first conveying mechanism 130 can be provided with only the turbulence area 1331 at the feeding end.

[0231] In combination with FIG. 15, when the first bearing area 133 is provided with only the turbulence area 1331, the length of the first bearing area 133 is a first length H1, and when the first bearing area 133 is provided with the turbulence area 1331 and the sink area 1332, referring to FIG. 17, the length of the first bearing area 133 is a second length H2, and H2 is greater than H1.

[0232] Alternatively, in some embodiments, the turbulence area 1331 and the sink area 1332 can always exist, and the extension of the first bearing area 133 can be to lengthen the turbulence area 1331, so that the material is naturally stabilized and enters the sink state, and therefore, the setting of the air port 143 can shorten the length of the turbulence area 1331, so that the material is quickly stabilized. Therefore, the setting of the air port can shorten the overall length of the device.

[0233] In a possible implementation, referring to FIG. 18, the feeding device 200 includes a suction mechanism 230, the suction mechanism 230 is located below the second bearing area 212, one end of the suction mechanism 230 is in abutment with the second bearing area 212 and communicates with the aperture, the other end of the suction mechanism 230 is used for being connected with the negative pressure source, and a negative pressure channel is formed in the suction mechanism 230. Therefore, the second bearing area 212 on the conveying device 400 is specifically an area on the conveying device 400 opposite to the suction mechanism 230, and it should be noted that since the conveying device 400 moves along the conveying direction, the second bearing area 212 is not a fixed area on the conveying device 400, but an area opposite to the suction mechanism 230 is the second bearing area 212, and by analogy, the first bearing area 133 is also not a fixed area on the conveying device 400.

[0234] As shown in FIG. 19, the suction mechanism 230 is located inside the second conveying mechanism 210, and is located below the second bearing area 212 of the second conveying mechanism 210. One end of the suction mechanism 230 abuts against the second bearing area 212, and the suction mechanism 230 is in communication with the apertures 213 on the second bearing area 212. The other end of the suction mechanism 230 is in communication with a negative pressure source. The negative pressure flow generated by the negative pressure source passes through the negative pressure channel formed by the suction mechanism 230, and is finally transmitted to the apertures 213 of the second bearing area 212, so as to perform negative pressure suction on the material on the second bearing area 212 which is in contact with the surface of the second bearing area 212. It can be understood that the second bearing area 212 is used to be in contact with the surface of the material.

[0235] In the embodiment of the present application, the suction mechanism 230 comprises a plurality of suction nozzles 231 and a pipeline 232. The plurality of suction nozzles 231 are connected to one end of the pipeline 232. The plurality of suction nozzles 231 are arranged at intervals below the second bearing area 212. The other end of the pipeline 232 is connected to the negative pressure source.

[0236] In the embodiment of the present application, as shown in FIG. 19, the first blowing mechanism 220 comprises at least one first air knife 221, but is not limited to one first air knife 221, and can be any number, for example, two, three or four. The embodiment of the present application takes three first air knives 221 as an example, as shown in FIG. 6. One end of each first air knife 221 is provided with a first blowing nozzle 222. The other end of each first air knife 221 is used to be in communication with a gas source. A plurality of first air knives 221 are arranged at intervals along the conveying direction of the second conveying mechanism 210. The first air knife 221 is used to form a third air flow, so as to blow the material on the second bearing area 212.

[0237] Along the conveying direction of the second conveying mechanism 210, the second bearing area 212 comprises an inlet end 214 and an outlet end 215. Part of the first air knives 221 is located above the second bearing area 212 and close to the outlet end 215. That is, as shown in FIG. 19, the second bearing area 212 comprises an inlet end 214 and an outlet end 215. The inlet end 214 is used to send the stacked material into the second bearing area 212. The outlet end 215 is used to send the single-layer material out of the second bearing area 212. Part of the first air knives 221 is located above the second bearing area 212 and close to the outlet end 215, so as to ensure that the material about to leave the second bearing area 212 at the outlet end 215 is single-layer material, and the conveying efficiency of the single-layer material is improved.

[0238] In the embodiment of the present application, along the conveying direction of the second conveying mechanism 210, the distance between each adjacent two first blowing nozzles 222 is d, the size of the material is a, and d>a, that is, the distance between each adjacent two first blowing nozzles 222 is greater than the size of the material.

[0239] It can be understood that the distance between each adjacent two first blow nozzles 222 is greater than the size of the material, so that the material not adsorbed by the negative pressure in the conveying process is blown away by the third airflow of each first blow nozzle 222 to the second carrying area 212, preventing the same material from being swept by the third airflow generated by two or more first air knives 221 at the same time. Prevent the third airflow generated by the previous air knife (the last first air knife 221 close to the feeding end 214) from becoming a downward pressure, causing the material on the second carrying area 212 to stack.

[0240] In the embodiment of the present application, referring to FIGS. 19 and 20, the first blowing mechanism 220 further comprises at least one second air knife 223, but is not limited to one second air knife 223, and can be any number of two, for example, two. The embodiment of the present application specifically takes one second air knife 223 as an example, as shown in FIG. 7. The second air knife 223 is located on the side of the second carrying area 212. The second air knife 223 is used to form a fourth airflow to sweep the material on the second carrying area 212 from the side.

[0241] As shown in FIG. 20, in the embodiment of the present application, one end of the second air knife 223 is connected with the second blow nozzle 224, and the other end of the second air knife 223 is connected with a gas source (not shown in the figure). The gas source generates an airflow, the airflow passes through the second air knife 223 to form a fourth airflow, and the fourth airflow is sprayed out through the second blow nozzle 224 to sweep the stacked material on the second carrying area 212 away from the discharging end 215. The fourth airflow sprayed out of the second blow nozzle 224 blows the material on the second carrying area 212 that is not adsorbed by the suction nozzle 231 away from the surface of the second carrying area 212.

[0242] As shown in FIG. 20, in the embodiment of the present application, the material distributing device 200 can further be provided with a recycling structure 240. The recycling structure 240 is arranged close to the second conveying mechanism 210, and is used to recycle the material separated from the second conveying mechanism 210 and convey the recycled material to the feeding end of the third conveying mechanism 310 or the feeding port 141 of the feeding device 100. The recycling structure 240 is used to collect the material blown away from the second carrying area 212 by the fourth airflow, so as to avoid the scattering and waste of the material and reduce the loss of the material.

[0243] In the embodiment of the present application, the second conveying mechanism 210 comprises a motor (not shown in the figure) and a transmission belt 211, wherein the motor is used to drive the transmission belt 211 to move. The transmission belt 211 is used to carry part of the material as the second carrying area 212, and the transmission belt 211 is provided with apertures 213.

[0244] It can be understood that the area on the conveying belt 211 for carrying the material and opposite to the adsorption structure is the second carrying area 212, that is, the second carrying area 212 is part of the conveying belt 211. And with the movement of the conveying belt 211 along the conveying direction, the specific position of the second carrying area 212 will change accordingly. It should be noted that the conveying belt 211 can be a rubber conveying belt, and can also be a metal conveying belt, but is not limited to the above two, for example, it can also be a plastic conveying belt, etc.

[0245] In addition, in some embodiments, as shown in FIG. 18, the second conveying mechanism 210 can be an extension of the first conveying mechanism 130 of the feeding device 100, for example, a part of the first conveying mechanism 130 can be used as the second conveying mechanism 210, and the second conveying mechanism 210 and the first conveying mechanism 130 can be one conveying structure, that is, the feeding device 100 and the distributing device 200 share one conveying mechanism.

[0246] Alternatively, in other embodiments, the second conveying mechanism 210 can be arranged downstream of the first conveying mechanism 130 of the feeding device 100, and the material can enter the inlet end of the second conveying mechanism 210 through the outlet end of the first conveying mechanism 130. At this time, the outlet end of the first conveying mechanism 130 and the inlet end of the second conveying mechanism 210 are connected, that is, the second conveying mechanism 210 and the first conveying mechanism 130 are two independent conveying mechanisms.

[0247] The embodiment of the present application also includes a pole piece recycling method suitable for recycling mixed first pole pieces 10 and second pole pieces 20. The recycling method can rely on the pole piece recycling device described above, and the execution subject of the recycling method can be set as the pole piece recycling device, or the execution subject of the recycling method can also be set as the controller in the pole piece recycling device. The structure of the pole piece recycling device can be referred to the description above, and the embodiment of the present application will not be described here. The recycling method includes:

[0248] S101, the feeding device 100 disperses and conveys the material to the distributing device 200;

[0249] S102, the distributing device 200 performs negative pressure adsorption and blowing on the conveyed material to make the material distribute in a single layer;

[0250] S103, the sorting device 300 identifies the stacking order and pole piece type of the first pole piece structure in the conveyed single-layer material, and drives the first pole piece to move along the separation path into the first collecting piece according to the pole piece type and the stacking order, and the second pole piece enters the second collecting piece along the set path.

[0251] The rotation speed of the conveying disc 111 of the feeding device 100 is controlled, so that the material is dispersed under the rotation of the conveying disc 111, the second blowing mechanism 120 of the feeding device 100 blows the material on the conveying disc 111 along the first direction L1, so that the material on the conveying disc 111 is dispersed and falls on the second blowing mechanism 120, and the second blowing mechanism 120 conveys the material along the second direction L2.

[0252] The first direction L1 is opposite to the linear speed direction of the conveying disc 111 in the rotation process, and the first direction L1 and the second direction L2 are in the same direction.

[0253] In addition, in the embodiment of the present application, S101 can include:

[0254] S1011: Control the blowing angle and wind speed of the second blowing mechanism 120, so that the material on the conveying disc 111 is dispersed and falls on the conveying device 400.

[0255] S1012: Control the air outlet 143 above the second blowing mechanism 120 to release the airflow blown by the second blowing mechanism 120, so that the material separated from the conveying disc 111 falls on the conveying device 400. The conveying device 400 conveys the material along the second direction to the distributing device 200.

[0256] In the embodiment of the present application, in step S102, the stacked material is conveyed along the conveying direction on the second carrying area 212 by the conveying device 400. The material on the carrying area in contact with the carrying area is negatively adsorbed by the negative pressure channel, and the material not adsorbed on the carrying area is swept along the direction opposite to the conveying direction of the material by the second blowing structure, so as to ensure that the material is uniformly distributed in a single layer on the second carrying area 212. The material separated from the carrying area is recycled, and the recycled material is conveyed to the material inlet end of the distributing device 200 or the material inlet of the feeding device 100.

[0257] In the embodiment of the present application, the second blowing structure blows the material not adsorbed on the carrying area to separate from the carrying area, comprising:

[0258] S1021, the first air knife of the second blowing structure forms a third airflow, and the third airflow sweeps the material not adsorbed on the carrying area along a direction opposite to the conveying direction of the third conveying mechanism;

[0259] S1022, the second air knife of the second blowing structure forms a fourth airflow, and the fourth airflow sweeps the side of the carrying area to separate the material not adsorbed from the carrying area, and the material separated from the carrying area is recycled and conveyed to the distributing device 200.

[0260] In the embodiments of the present application, the identification device of the sorting device 300 includes a first identification member and a second identification member, and S103 can include:

[0261] S1031, obtaining the stacking order of the pole piece by the first identification member;

[0262] S1032, identifying the pole piece category as the first pole piece or the second pole piece by the second identification member;

[0263] S1033, according to the pole piece category and the stacking order, driving the first pole piece to move along the separation path into the first collection member, and the second pole piece along the set path into the second collection member, including: when the first pole piece in the first pole piece structure is above the second pole piece, controlling the first nozzle to blow air towards the non-stacked part of the first pole piece, so that the first pole piece moves along the first separation path and enters the first collection member;

[0264] When the first pole piece in the first pole piece structure is below the second pole piece, the second nozzle is controlled to blow air towards the non-stacked part of the first pole piece, so that the first pole piece moves along the second separation path and enters the first collection member.

[0265] The first collection member 341 can be arranged on the separation path, and the first collection member 341 can be used to at least receive the first pole piece 10. The second collection member 342 can be arranged on the set path S, and the second collection member 342 can be used to receive the second pole piece 20.

[0266] For example, as shown in FIG. 11, the first nozzle 331 is used to drive the first pole piece 10 to move along the first separation path D1, and the second nozzle 332 is used to drive the first pole piece 10 to move along the second separation path D2, so that the separation path includes the first separation path D1 and the second separation path D2. Wherein, the first separation path D1 is away from the third conveying mechanism 310 relative to the set path S, and the second separation path D2 is close to the third conveying mechanism 310 relative to the set path S.

[0267] The first collection member 341 can include a first part and a second part arranged at intervals. The first part of the first collection member 341 can be arranged on the side of the second collection member 342 away from the third conveying mechanism 310, and the first part of the first collection member 341 can be arranged on the first separation path D1, and the first part of the first collection member 341 can be used to collect the first pole piece 10 moving along the first separation path D1.

[0268] The second part of the first collection member 341 can be arranged on the side of the second collection member 342 close to the third conveying mechanism 310, and the second part of the first collection member 341 can be arranged on the second separation path D2, and the second part of the first collection member 341 can be used to collect the first pole piece 10 moving along the second separation path D2.

[0269] Wherein, the terms of "upper", "lower" and the like are used to describe the relative position relationship of each structure in the drawings, which is only for the convenience of clear description, and is not used to limit the scope of the application. The change or adjustment of the relative relationship is also considered as the scope of the application without substantial change of the technical content.

[0270] It should be noted that in the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0271] In addition, in the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be direct connection, or indirect connection through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0272] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0273] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pole piece recovery device, characterized in that: The direction of movement of the material includes: Conveying equipment is used to transport materials from the starting end to the ending end so that the materials move along the set path; A feeding device, used to receive the material entering from the feeding port and disperse the material during the rotation process to be transported to the conveying device; The material distribution device includes a supporting area with multiple apertures provided on the conveying device and a first blowing mechanism, wherein the supporting area is configured to negatively adsorb the material in the bottom layer, and the first blowing mechanism is configured to blow the unadsorbed material on the supporting area away from the supporting area, so that the material is distributed in a single layer; The sorting equipment is used to identify different pole pieces in the single layer material and separate the identified different pole pieces.

2. The electrode recovery device according to claim 1, characterized in that: The sorting device includes: an identification device, a sorting device and a collection device; The identification device is at least used to identify the first laminate structure in the single-layer material, the first laminate structure comprising a first electrode sheet and a second electrode sheet stacked together; the identification device is at least reused to identify the stacking order of the first electrode sheet and the second electrode sheet; The sorting device is used to drive the first pole piece in the first stacked structure to deviate from a set path according to the stacking sequence; The collecting device includes a first collecting member and a second collecting member, wherein the first collecting member is used to receive the first pole piece; and the second collecting member is used to receive the second pole piece.

3. The electrode recovery device according to claim 2, characterized in that: The first collecting member includes a first portion provided on a side of the second collecting member away from the conveying device, and a second portion provided on a side of the second collecting member close to the conveying device; The sorting device includes a first nozzle and a second nozzle that cooperate with each other; The first nozzle discharges gas upward, and the first nozzle is used to change the movement trajectory of the first pole piece located above the second pole piece in the first stacked structure so that the first pole piece enters the first portion; The second nozzle discharges gas downward, and is used to change the movement trajectory of the first pole piece located below the second pole piece in the first stacked structure so that the first pole piece enters the second portion.

4. The electrode recovery device according to claim 2, characterized in that: The identification device includes a first identification member and a second identification member, wherein the first identification member and the second identification member are used to face the pole piece located on the conveying device; The first identification element is used at least to obtain the stacked pole pieces and the single-layer pole pieces; The second identification element is used at least to identify the electrode as the first electrode or the second electrode based on the materials of the first electrode and the second electrode; If the stacked pole pieces include the first pole piece and the second pole piece, the two stacked pole pieces constitute the first stacked-piece structure.

5. The electrode recovery device according to any one of claims 1 to 4, characterized in that: The sorting device further includes a first gas delivery mechanism and a second gas delivery mechanism, wherein the first gas delivery mechanism is at least used to form a first airflow, and the first airflow is used to drive the electrode to fit the electrode to the conveying device; The second air delivery mechanism is used to form a second airflow, the direction of the second airflow being opposite to the direction of the first airflow, so as to balance the air pressure in the cavity.

6. The electrode recovery device according to any one of claims 1 to 4, characterized in that: The feeding equipment comprises: A horizontally rotatable conveyor turntable is used to receive materials entering from the inlet and disperse the materials during the rotation process; a second blowing mechanism, the second blowing mechanism being located above the conveying turntable, and being used for blowing at least part of the material on the conveying turntable along a first direction until the material is separated from the conveying turntable during the rotation of the conveying turntable; The first end of the conveying device is connected to the conveying turntable, and the second end of the conveying device extends along the second direction, for receiving the material separated from the conveying turntable and conveying the material separated from the conveying turntable along the second direction; The first direction is opposite to the linear velocity direction of the conveying turntable during its rotation, and the first direction is in the same direction as the second direction.

7. The electrode recovery device according to claim 6, characterized in that: The blowing direction of the second blowing mechanism is a third direction, and a preset angle is formed between the third direction and the first direction; Wherein, the preset angle is an acute angle.

8. The electrode recovery device according to claim 6, characterized in that: The feeding device further comprises: at least one air vent; The air vent is located above the conveying device, and is used to release the airflow blown out by the second blowing mechanism so that the materials separated from the conveying turntable are scattered onto the conveying device.

9. The electrode recovery device according to claim 8, characterized in that: An air suction device is provided at the air outlet, and the air suction device is used to absorb the air flow blown out by the second blowing mechanism.

10. The electrode recovery device according to any one of claims 1 to 4, characterized in that: The material distribution device includes an adsorption mechanism, which is located below the bearing area, one end of the adsorption mechanism abuts against the bearing area and communicates with the pore, and the other end of the adsorption mechanism is used to communicate with a negative pressure source; A negative pressure channel is formed in the adsorption mechanism.

11. The electrode recovery device according to any one of claims 1 to 4, characterized in that: The first blowing mechanism includes at least one first air knife, one end of each first air knife is provided with a first blowing nozzle, and the other end of each first air knife is used to be connected to an air source; A plurality of the first air knives are arranged at intervals along a conveying direction of the conveying device; The first air knife is used to form a third air flow to purge the material on the carrying area.

12. The electrode recovery device according to claim 11, characterized in that: The first blowing mechanism further includes at least one second air knife and a recovery structure, wherein the second air knife is located on the side of the bearing area; The second air knife is used to form a fourth air flow to laterally sweep the material on the carrying area; The recovery structure is arranged close to the conveying device, and is used to recover the material separated from the conveying device and transfer the recovered material to the feeding device or the distribution device.

13. A method for recycling pole pieces, characterized in that: The electrode recovery device according to any one of claims 1 to 12 is used for recovery, and the method comprises: The feeding equipment disperses the materials and transfers them to the conveying equipment; The material distribution equipment applies negative pressure adsorption and blows the conveyed material to make the material distributed in a single layer; The sorting equipment identifies the stacking order and electrode category of the first laminate structure in the conveyed single-layer material, and drives the first electrode to move along the separation path and enter the first collecting piece according to the electrode category and the stacking order, and the second electrode enters the second collecting piece along the set path.

14. The electrode recycling method according to claim 13, characterized in that: The sorting device identifies the stacking order and electrode type of the first laminate structure in the conveyed single-layer material, including: The identification device includes a first identification member and a second identification member; Obtaining the stacking order of the electrode pieces through the first identification element; Identify the electrode type as the first electrode or the second electrode by using the second identification element; According to the electrode type and the stacking order, the first electrode is driven to move along the separation path and enter the first collecting member, and the second electrode is driven to enter the second collecting member along the set path, including: When the first pole piece is located above the second pole piece in the first stacked structure, the first nozzle is controlled to discharge gas toward the non-overlapping portion of the first pole piece, so that the first pole piece moves along a first separation path and enters the first collecting member; When the first pole piece is located below the second pole piece in the first stacked structure, the second nozzle is controlled to discharge gas toward the non-overlapped portion of the first pole piece, so that the first pole piece moves along the second separation path and enters the first collecting member.

15. The electrode recycling method according to claim 13, characterized in that: The feeding equipment disperses the material and transfers it to the conveying equipment, including: By controlling the rotation speed of the conveying turntable of the feeding device, the material is dispersed under the rotation of the conveying turntable; By controlling the blowing angle and wind speed of the second blowing mechanism of the feeding device, the materials on the conveying turntable are dispersed and dropped onto the conveying device; The material is conveyed to the material distribution equipment along the second direction by the conveying equipment.

16. The electrode recycling method according to any one of claims 14-15, characterized in that: The material distribution equipment performs negative pressure adsorption and blowing on the conveyed material so that the material is distributed in a single layer, including: The material contacting the supporting area of ​​the material distribution device is adsorbed by negative pressure adsorption, and the unadsorbed material on the supporting area is blown away from the supporting area by the second blowing structure, so that the material on the supporting area is distributed in a single layer; The materials separated from the carrying area are recovered and the recovered materials are conveyed to the feeding end of the material distribution equipment or the feeding port of the material feeding equipment.

17. The electrode recycling method according to claim 16, characterized in that: The step of blowing the unabsorbed material on the support area away from the support area by the second blowing structure comprises: The first air knife of the second blowing structure forms a third airflow, and the third airflow sweeps the unabsorbed materials on the carrying area in a direction opposite to the conveying direction of the third conveying mechanism; The second air knife of the second blowing structure forms a fourth airflow, and the fourth airflow sweeps the side of the load-bearing area to separate the unabsorbed material from the load-bearing area, recovers the material that has separated from the load-bearing area, and transmits the recovered material to the distribution equipment.

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