A battery cell electrode tab separation mechanism

Abstract

The application discloses a battery cell pole piece separation mechanism, which comprises a separation module, a collection bin and an internal part of the separation module; the separation module is communicated with the collection bin; the internal part of the separation module comprises an upper guiding separation device, a lower separation device and a guiding structure; the upper guiding separation device comprises an upper guiding gantry, a separation guiding rod, an upper separation guiding structure, an upper rear stripping piece, an upper pressing guiding piece, a starting pressing piece, an upper end material cleaning piece, a pole piece end guiding piece and an upper guiding driving piece; the lower separation device comprises a back side isolation pressing piece which is slidably arranged on the side wall of a negative electrode bin; the inner side of the negative electrode bin is provided with a diaphragm starting back blowing piece; the side, away from the back side isolation pressing piece, of the diaphragm starting back blowing piece is connected with a lower rear stripping piece; the outer side of the negative electrode bin is provided with a negative electrode stripping piece; the guiding structure comprises a separation guiding gantry, a core bag separation guiding assembly, a guiding air knife piece, a guiding pressure bearing plate and a core bag separation pressing structure; and the negative electrode, the positive electrode and the diaphragm separated by the application can meet the recycling requirements.

Description

TECHNICAL FIELD

[0001] The application relates to a battery disassembling device, in particular to a battery cell pole piece separating mechanism. BACKGROUND

[0002] Battery cell fine disassembling is a key technology for efficient recovery and resource recycling of waste batteries, and the core goal is to safely and environmentally extract valuable materials such as positive and negative electrode materials, electrolyte and separator from the battery. In the disassembling process, pretreatment is needed to ensure safety and operability, then the shell is cut by mechanical cutting to separate the shell and the core, and the positive and negative pole pieces and the separator in the core package are efficiently separated. The separated pole pieces are then separated into active material and current collector for further recovery and purification. In the process of pole piece recovery and separation, the negative electrode and the separator need to be separated, so that the negative electrode enters a special negative electrode recovery bin, and the positive electrode and the separator enter a shearing device for shearing. The sheared sheet structure is separately recycled.

[0003] In the prior art, when separating the separator and the negative electrode, the negative electrode and the separator can be easily blown away as long as the arrangement and angle of the air knife are set, but in some core packages with electrolyte, the applicant found the following problems: 1. Some electrolyte is still between the separator and the negative electrode, causing the separator and the negative electrode to stick together and be difficult to separate; 2. The separator may extend and be tightly wrapped inward during packaging, making it difficult to blow out the negative electrode due to the blockage of this section; 3. After the negative electrode is separated, the remaining core package is transported to the shearing structure, and the core package may bend between the guide structure and the shearing structure, causing the core package to enter the shearing position with insufficient tension, and the size of the sheared core package varies.

[0004] Therefore, the application aims to provide a battery cell pole piece separating mechanism that can process the core package in multiple angles and structures to completely separate the negative electrode from the separator in the core package, and the separated separator and positive electrode can always maintain good tension and be sheared, so that the separated negative electrode, positive electrode and separator can meet the recycling requirements. SUMMARY

[0005] The application provides a battery cell pole piece separating mechanism, which can effectively solve the above problems.

[0006] The application is implemented as follows:

[0007] A battery cell pole piece separation mechanism, comprising: a separation module, which is communicated with a collecting bin, and the inside of the separation module comprises an upper guiding separation device, a lower separation device and a guiding structure, the upper guiding separation device comprises an upper guiding gantry, at least two separation guiding rods are fixedly connected to the upper guiding gantry, an upper end rear stripping piece is movably connected to the separation guiding rods, and an upper pressing guiding piece, a head pressing piece, an upper end cleaning piece and a pole piece end guiding piece are movably connected to the side of the upper end rear stripping piece away from the upper guiding gantry, and the upper pressing guiding piece, the head pressing piece, the upper end cleaning piece and the pole piece end guiding piece are all provided with upper guiding driving pieces;

[0008] The lower separation device comprises a back side isolation pressing piece which is slidably arranged on the side wall of the negative electrode bin, the inner side of the negative electrode bin is provided with a diaphragm head back blowing piece, the diaphragm head back blowing piece is connected with a lower end rear stripping piece on the side away from the back side isolation pressing piece, and the outer side of the negative electrode bin is provided with a negative electrode stripping piece, after the diaphragm head is blown out by the diaphragm head back blowing piece, the negative electrode stripping piece blows into the gap between the negative electrode and the diaphragm and separates the negative electrode from the diaphragm;

[0009] The guiding structure comprises a separation guiding gantry, the inner side of the separation guiding gantry is provided with a guiding roller group which can be lifted up and down, a core bag separation guiding assembly is arranged in the guiding roller group, the guiding roller group is provided with a guiding air knife piece on the side away from the feeding direction, a guiding pressure bearing plate is arranged below the guiding air knife piece and connected with the separation guiding gantry, and a core bag separation pressing structure is further arranged on the side of the separation guiding gantry close to the guiding pressure bearing plate, the core bag guided by the guiding roller group is adhered to the guiding pressure bearing plate under the downward action of the guiding air knife piece, and the core bag is pressed on the guiding pressure bearing plate after being pushed out by the core bag separation pressing structure.

[0010] As a further improvement, the upper end rear stripping piece comprises a first movable sleeve seat which is slidably connected with the separation guiding rod, the first movable sleeve seat is movably connected with the separation guiding rod through a locking piece, an upper end stripping frame is connected to the lower ends of the two first movable sleeve seats, an upper stripping air knife is connected to the inner side of the upper end stripping frame, the lower end rear stripping piece comprises at least one rear stripping mounting rod, a rear stripping air knife is mounted on the rear stripping mounting rod, the rear stripping mounting rod is mounted on a rear stripping push rod, and the rear stripping push rod is mounted on the inner side of the negative electrode bin.

[0011] As a further improvement, the upper guide driving member comprises two second movable sleeves sleeved on the separate guide rods, a separate guide cross plate is locked between the two second movable sleeves, a guide separate driving member is locked on the separate guide cross plate, the guide separate driving members at different positions are connected with the upper pressing guide, the starting pressing member, the upper end material cleaning member and the pole piece end guide respectively, the upper pressing guide, the starting pressing member, the upper end material cleaning member and the pole piece end guide are connected with a linear guide frame, the linear guide frame comprises a linear guide sleeve locked on the separate guide cross plate, the top of the linear guide rod is movably mounted on the inner side of the linear guide sleeve and is extended to be fixed on the upper pressing guide, the starting pressing member, the upper end material cleaning member and the pole piece end guide, the top of the two linear guide rods is connected with a special-shaped synchronous moving plate.

[0012] As a further improvement, the lower end of the upper pressing guide is provided with an upper pressing guide frame connected with the bottom output end of the guide separate driving member, the two ends of the top surface of the upper pressing guide frame are connected with the linear guide rods, the inner side of the upper pressing guide frame is provided with an upper pressing guide roller, the starting pressing member comprises a starting connecting plate connected with the linear guide rods and the guide separate driving member, the lower end of the starting connecting plate is connected with a pressing cone plate, the upper end material cleaning member comprises an upper end material cleaning guide frame connected with the linear guide rods and the guide separate driving member, the inner side of the upper end material cleaning member is locked with a material cleaning air knife.

[0013] As a further improvement, the pole piece end guide comprises a pole piece guide seat arranged at the lower end of the linear guide rod and the guide separate driving member, the lower end of the pole piece guide seat is provided with a U-shaped seat, the pole piece moves to the next station through the U-shaped seat, the U-shaped seat comprises an upper hollow bucket connected with the pole piece guide seat, the lower end of the upper hollow bucket is connected with two pole piece guide plates, the pole piece guide plates are provided with chamfers along the direction of the pole piece conveying.

[0014] As a further improvement, the outer side of the negative electrode bin is provided with a negative electrode bin guide rail, the back side isolation pressing member comprises a back side isolation sliding plate connected with the negative electrode bin guide rail, the back side isolation sliding plate is connected on a back side isolation moving frame, the back side isolation moving frame is of an L-shaped structure, one end of the short shaft of the back side isolation moving frame is mounted with a back side isolation guide roller, one end of the long shaft of the back side isolation moving frame is connected with a back side isolation frame driving member.

[0015] As a further improvement, the diaphragm starting back blowing member comprises a diaphragm starting back blowing frame locked on the inner side wall of the negative electrode bin, a diaphragm starting direction adjusting frame is locked on the diaphragm starting back blowing frame, a diaphragm starting air knife is movably mounted on the diaphragm starting direction adjusting frame.

[0016] As a further improvement, the negative electrode stripping piece comprises a negative electrode warehouse external rack arranged outside the negative electrode warehouse, a wind knife containing groove is arranged on the negative electrode warehouse external rack, a negative electrode stripping wind knife is arranged in the wind knife containing groove, the negative electrode stripping wind knife is hinged in the wind knife containing groove, and a plurality of negative electrode wind knife push rods are arranged on the bottom of the negative electrode warehouse external rack.

[0017] As a further improvement, the guide wind knife piece comprises a guide wind knife mounting rack locked on the dynamic guide roller mounting seat, a guide wind knife is arranged at the bottom end of the guide wind knife mounting rack, and the side of the guide pressure bearing plate facing the guide wind knife is a rounded corner.

[0018] As a further improvement, the outer side of the separation guide gantry is provided with a side ear seat, the core package separation pressure applying structure comprises a pressure applying guide rod locked on the side ear seat, a core package separation pressure applying seat is slidingly installed on the pressure applying guide rod, a core package separation positioning seat is arranged on the side of the core package separation pressure applying seat away from the side ear seat and is slidingly connected with the pressure applying guide rod, a core package separation driving piece is installed on the core package separation positioning seat, the output end of the core package separation driving piece is connected with the core package separation pressure applying seat, the core package separation pressure applying seat comprises a core package separation sleeve sleeved on the pressure applying guide rod, the core package separation sleeve is locked on a core package separation synchronization plate, the side of the core package separation synchronization plate away from the guide pressure bearing plate is connected with the core package separation driving piece, and the side of the core package separation synchronization plate close to the guide pressure bearing plate is locked with a core package separation pressure applying plate matched with the guide pressure bearing plate.

[0019] The beneficial effects of the present application are:

[0020] In the process of separating the pole piece from the semi-dry core package, the diaphragm and the pole piece are difficult to separate even by the wind knife, therefore, the upper separation guide structure is arranged, first, the head position of the core package is pressed by the head pressing piece, so that a gap appears between the diaphragm and the pole piece, which can be better affected by the wind knife, then at the end of the separation, the tail end of the core package is pressed and blocked by the upper pressing guide piece and the upper end cleaning piece, so that the negative electrode can be completely separated from the diaphragm and the positive electrode, and in the process of the Jengge, each part of the core package can be more stable in the separation stage under the guidance of the pole piece end guide, and the separation efficiency is improved.

[0021] The existing part core package diaphragm head will cover the negative electrode, which makes the negative electrode difficult to be blown out, so that the core package needs to be pre-treated separately in advance, which is more troublesome, therefore, the diaphragm head back blowing piece is arranged first, the head of the diaphragm is blown up, the negative electrode is exposed, then the negative electrode stripping piece blows the negative electrode backward immediately, the negative electrode falls into the negative electrode bin, and the back side isolation pressing piece abuts against the bottom end of the diaphragm, so that the negative electrode is blocked, so that the negative electrode can be completely separated from the diaphragm and the positive electrode, and the recovery stage is more smooth and the separation efficiency is higher.

[0022] The existing guide structure and the part core package between the shearing structure are prone to bending, which causes the core package to be insufficient in tension when entering the shearing position, therefore, the core package separation guide assembly is arranged, after the core package passes through the guide roller group, the core package can be blown downward by the guide air knife piece, so that the core package is laid on the guide pressure bearing plate, and the core package separation pressing structure is pushed out to press the core package on the guide pressure bearing plate, so that the head position of the core package becomes flat, and the continuously transmitted core package is always flat output under the guidance of the guide air knife piece and the guide pressure bearing plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Figure 1 is the external structure schematic diagram of the present application.

[0025] Figure 2 is the internal structure schematic diagram of the present application.

[0026] Figure 3 is the structure schematic diagram of the upper guide separation device and the lower separation device of the present application.

[0027] Figure 4 is the perspective structure schematic diagram of the upper guide separation device of the present application (first view angle).

[0028] Figure 5 is the perspective structure schematic diagram of the upper guide separation device of the present application (second view angle).

[0029] Figure 6 is the front view structure schematic diagram of the upper guide separation device of the present application.

[0030] Figure 7 is the perspective structure schematic diagram of the lower separation device of the present application.

[0031] Figure 8 is the front view structural schematic diagram of the separation device under the invention.

[0032] Figure 9 is the top view structural schematic diagram of the separation device under the invention.

[0033] Figure 10 is the structural schematic diagram of the guiding structure cooperating with the invention.

[0034] Figure 11 is the three-dimensional structural schematic diagram of the guiding structure of the invention.

[0035] Figure 12 is the front view structural schematic diagram of the guiding structure of the invention.

[0036] in the figure:

[0037] The separation module 100, the material collecting bin 200, the upper guiding gantry 70, the separation guiding rod 71, the upper rear stripping part 73, the first movable sleeve seat 731, the upper stripping frame 732, the upper stripping air knife 733, the upper pressing guiding part 74, the upper pressing guiding frame 741, the upper pressing guiding roller 742, the starting head pressing part 75, the starting head connecting plate 751, the pressing cone plate 752, the upper end material cleaning part 76, the upper end material cleaning guiding frame 761, the material cleaning air knife 762, the pole piece end guiding part 77, the pole piece guiding seat 771, the U-shaped seat 772, the upper hollow bucket 7721, the pole piece guiding plate 7722, the upper guiding driving part 78, the second movable sleeve seat 781, the separation guiding transverse plate 782, the guiding separation driving part 783, the linear guiding frame 784, the linear guiding sleeve 7841, the linear guiding rod 7842, the special-shaped synchronous moving plate 7843, the negative electrode bin 80, the negative electrode bin guide rail 801, the back side isolation pressing part 81, the back side isolation sliding plate 811, the back side isolation moving frame 812, the back side isolation guiding roller 813, the side isolation frame driving part 814, the diaphragm starting head back blowing part 82, the diaphragm starting head back blowing frame 821, the diaphragm starting head direction adjusting frame 822, the diaphragm starting head air knife 823, the lower rear stripping part 83, the rear stripping mounting rod 831, the rear stripping air knife 832, the rear stripping push rod 833, the negative electrode stripping part 84, the negative electrode bin external frame 841, the air knife containing groove 842, the negative electrode stripping air knife 843, the negative electrode air knife push rod 844, the separation guiding gantry 90, the movable guiding roller driving part 901, the movable guiding roller mounting seat 902, the movable guiding roller limiting rod 903, the side ear seat 904, the guiding roller group 91, the movable guiding roller 911, the fixed guiding roller 912, the fixed guiding roller driving part 913, the guiding air knife part 92, the guiding air knife mounting frame 921, the guiding air knife 922, the guiding pressure bearing plate 93, the core pack separation pressing structure 94, the pressing guiding rod 941, the core pack separation pressing seat 942, the core pack separation sleeve 9421, the core pack separation synchronous plate 9422, the core pack separation pressing plate 9423, the core pack separation positioning seat 943, the core pack separation driving part 944. DETAILED DESCRIPTION

[0038] To make the embodiments of the present application, all belong to the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor, belong to the scope of protection of the present application.

[0039] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as the purpose of indicating the manner, the technical solution and the advantages are more clear, the technical solution in the embodiments of the present application will be described clearly and completely below, it is obvious that the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor, implicitly or explicitly indicate the number of technical features indicated. Therefore, the features with "first", "second" can be explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0040] Reference Figures 1 to 12As shown, a battery cell pole piece separation mechanism comprises: a separation module 100 communicated with a collecting bin 200, the inside of the separation module 100 comprises an upper guiding separation device, a lower separation device and a guiding structure, the upper guiding separation device comprises an upper guiding gantry 70, at least two separation guiding rods 71 are fixedly connected to the upper guiding gantry 70, an upper end rear stripping piece 73 movably connected to the separation guiding rod 71 is arranged on the upper guiding gantry 70, an upper pressing guiding piece 74, a head pressing piece 75, an upper end cleaning piece 76 and a pole piece end guiding piece 77 movably connected to the guiding rod 71 are arranged on the side of the upper end rear stripping piece 73 away from the upper guiding gantry 70, and the upper pressing guiding piece 74, the head pressing piece 75, the upper end cleaning piece 76 and the pole piece end guiding piece 77 are provided with upper guiding driving pieces 78; the lower separation device comprises a back side isolation pressing piece 81 slidably arranged on the side wall of a negative electrode bin 80, a diaphragm head back blowing piece 82 is arranged on the inner side of the negative electrode bin 80, a lower end rear stripping piece 83 is connected to the side of the diaphragm head back blowing piece 82 away from the back side isolation pressing piece 81, and a negative electrode stripping piece 84 is arranged on the outer side of the negative electrode bin 80; after the diaphragm head is blown out by the diaphragm head back blowing piece 82, the negative electrode stripping piece 84 blows into the gap between the negative electrode and the diaphragm and separates the negative electrode from the diaphragm; the guiding structure comprises a separation guiding gantry 90, guiding roller groups 91 that can be raised and lowered are arranged on the inner side of the separation guiding gantry 90, a core bag separation guiding assembly is arranged in the guiding roller groups 91 for passing through the core bag, the core bag separation guiding assembly comprises a guiding air knife piece 92 arranged on the side of the guiding roller groups 91 away from the feeding direction, a guiding pressure bearing plate 93 is arranged below the position where the guiding air knife piece 92 is connected to the separation guiding gantry 90, and a core bag separation pressing structure 94 is further arranged on the side of the separation guiding gantry 90 close to the guiding pressure bearing plate 93; after the core bag is guided by the guiding roller groups 91, the core bag is adhered to the guiding pressure bearing plate 93 under the downward action of the guiding air knife piece 92, and the core bag separation pressing structure 94 is pushed out and pressed on the guiding pressure bearing plate 93.

[0041] The present application is divided into three parts, which are the upper guiding separation device, the lower separation device and the guiding structure, and the upper guiding separation device, the lower separation device and the guiding structure are provided with two groups of symmetrical workstations, when the mechanical hand outside clamps the core bag to the middle distribution table, the core bag is moved to any workstation through the clamping structure of the core bag and the pole piece is separated, the separated negative electrode falls into the negative electrode recovery transmission frame, and the separated positive electrode and diaphragm fall into the positive electrode recovery transmission frame after being cut by the cutting structure.

[0042] The existing process of separating the pole piece from the semi-dry core package, because the diaphragm is stuck with the pole piece, it is difficult to separate even by air knife, therefore, the upper separation guide structure is arranged, first, the starting position of the core package is pressed by the starting pressing piece 75, a gap is formed between the diaphragm and the pole piece, which can be better affected by the air knife, then at the end of the separation, the tail end of the core package is pressed and blocked by the upper pressing guide piece 74 and the upper end material cleaning piece 76, so that the negative electrode can be completely separated from the diaphragm and the positive electrode, and in the process of the Jangege, the end of the pole piece is guided under the guidance of the guide piece 77, so that each part of the core package can be more stable in the separation stage, and the separation efficiency is improved.

[0043] In the embodiment, the positions of the upper end rear stripping piece 73, the upper pressing guide piece 74, the starting pressing piece 75, the upper end material cleaning piece 76 and the pole piece end guide piece 77 on the separation guide rod 71 are manually adjusted according to the size of the core package, and in other embodiments, the electric adjustment mode can be used to be more accurate, but the cost of the equipment needs to be improved.

[0044] In the later stage of the core package separation, the negative electrode needs to be completely separated from the positive electrode and the diaphragm, so that the tail of part of the negative electrode is easily brought to the front end position, therefore, the upper end rear stripping piece 73 of the embodiment comprises a first movable sleeve 731 which is slidingly connected with the separation guide rod 71, the first movable sleeve 731 is movably connected with the separation guide rod 71 through a locking piece, the lower end of the two first movable sleeves 731 is connected with an upper end stripping frame 732, the inner side of the upper end stripping frame 732 is connected with an upper stripping air knife 733, the lower end rear stripping piece 83 comprises at least one rear stripping mounting rod 831, the rear stripping mounting rod 831 is provided with a rear stripping air knife 832, the tapered upper stripping air knife 733 and the rear stripping air knife 832 can form a blowing force and also provide a certain resistance pressure, so that the separation effect of the end negative electrode is better, in order to improve the adaptability of the rear stripping air knife 832, the rear stripping mounting rod 831 is mounted on a rear stripping push rod 833, the rear stripping push rod 833 is mounted on the inner side of the negative electrode bin 80, so that the position of the rear stripping air knife 832 can be adjusted.

[0045] In the core package feeding process, the upper pressing guide 74, the starting pressing piece 75, the upper end cleaning piece 76, and the pole piece end guide 77 need to give way to the feeding structure of the core package, and after the feeding is completed, the upper pressing guide 74, the starting pressing piece 75, the upper end cleaning piece 76, and the pole piece end guide 77 need to be lowered in height and contacted with the core package by the upper guide driving piece 78. Therefore, the upper guide driving piece 78 of the embodiment comprises two second movable sleeve seats 781 sleeved on the separate guide rod 71, a separate guide cross plate 782 is locked between the two second movable sleeve seats 781, a guide separation driving piece 783 is locked on the separate guide cross plate 782, and the guide separation driving piece 783 at different positions is connected with the upper pressing guide 74, the starting pressing piece 75, the upper end cleaning piece 76, and the pole piece end guide 77 respectively. The upper pressing guide 74, the starting pressing piece 75, the upper end cleaning piece 76, and the pole piece end guide 77 are connected with a linear guide frame 784, so that the up-down position can be changed to adapt to different working conditions.

[0046] In order to make the upper pressing guide 74, the starting pressing piece 75, the upper end cleaning piece 76, and the pole piece end guide 77 more stable during the up-down movement, the linear guide frame 784 comprises a linear guide sleeve 7841 locked on the separate guide cross plate 782, the top of the linear guide rod 7842 is movably mounted on the inner side of the linear guide sleeve 7841, and the top of the linear guide rod 7842 is fixed to the upper pressing guide 74, the starting pressing piece 75, the upper end cleaning piece 76, and the pole piece end guide 77. The top of the two linear guide rods 7842 is connected with a special-shaped synchronous moving plate 7843, wherein the middle part of the special-shaped synchronous moving plate 7843 is concave to one side of the guide separation driving piece 783, so that the stability is higher.

[0047] During the pressing process of the upper pressing guide 74, it is not necessary to adjust the height, so the lower end of the upper pressing guide 74 of the embodiment is provided with an upper pressing guide frame 741 connected with the bottom output end of the guide separation driving piece 783, the two ends of the top surface of the upper pressing guide frame 741 are connected with the linear guide rod 7842, the inner side of the upper pressing guide frame 741 is provided with an upper pressing guide roller 742, and the pole piece is pressed by the upper pressing guide roller 742.

[0048] When the pole piece clamping structure clamps the pole piece close, the starting pressing piece 75 comprises a starting connecting plate 751 connected with the linear guide rod 7842 and the guide separation driving piece 783, the lower end of the starting connecting plate 751 is connected with a pressure cone plate 752, the starting position of the diaphragm is pressed by the pressure cone plate 752, the folded diaphragm can be slightly raised, so that the air knife has a cutting inlet.

[0049] If the negative electrode at the end is not completely fallen into its position to be recycled, in the embodiment, the upper end material cleaning member 76 comprises an upper end material cleaning guide frame 761 connected with the linear guide rod 7842 and the guide separation driving member 783, and the inner side of the upper end material cleaning member 76 is locked with a material cleaning air knife 762, through which the negative electrode that has not been completely recycled can be blown into its recycling end, so as to realize the material cleaning action of the negative electrode.

[0050] Due to the interference of the strip material structure of the pole piece, the upper pressing guide 74, the starting head pressing member 75, the upper end material cleaning member 76 and the pole piece end guide 77, the pole piece may be skewed, which affects the recycling effect. Therefore, the pole piece end guide 77 of the embodiment comprises a pole piece guide seat 771 arranged at the lower end of the linear guide rod 7842 and the guide separation driving member 783, and a U-shaped seat 772 is arranged at the lower end of the pole piece guide seat 771, through which the pole piece moves to the next station, and the transmission direction of the pole piece is regulated through the U-shaped seat 772.

[0051] In order to facilitate feeding, the U-shaped seat 772 comprises an upper hollow hopper 7721 connected with the pole piece guide seat 771, and the lower end of the upper hollow hopper 7721 is connected with two pole piece guide plates 7722, which are both chamfered along the direction of the pole piece conveying, so as to guide the transmission direction of the pole piece.

[0052] The starting head of the separator of some core packs may cover the negative electrode, which makes it difficult to blow out the negative electrode, so that the core pack needs to be pre-treated separately, which is more troublesome. Therefore, the application first blows up the starting head of the separator through the separator starting head reverse blowing member 82, so that the negative electrode is exposed, and then immediately blows the negative electrode backward through the negative electrode stripping member 84, so that the negative electrode falls into the negative electrode bin 80, and the back side isolation pressing member 81 abuts against the bottom end of the separator, so as to block the negative electrode, so that the negative electrode can be completely separated from the separator and the positive electrode, the recycling stage is more smooth, and the separation efficiency is higher.

[0053] The starting head of the separator of some core packs may cover the negative electrode, which makes it difficult to blow out the negative electrode, so that the core pack needs to be pre-treated separately, which is more troublesome. Therefore, the application first blows up the starting head of the separator through the separator starting head reverse blowing member 82, so that the negative electrode is exposed, and then immediately blows the negative electrode backward through the negative electrode stripping member 84, so that the negative electrode falls into the negative electrode bin 80, and the back side isolation pressing member 81 abuts against the bottom end of the separator, so as to block the negative electrode, so that the negative electrode can be completely separated from the separator and the positive electrode, the recycling stage is more smooth, and the separation efficiency is higher.

[0054] After the negative electrode is blown out, in order to avoid the negative electrode being continuously taken back during the output of the positive electrode and the separator, the outer side of the negative electrode bin 80 of the embodiment is provided with a negative electrode bin guide rail 801, the back side isolation pressing member 81 comprises a back side isolation sliding plate 811 connected with the negative electrode bin guide rail 801, the side isolation sliding plate 811 is connected on a back side isolation moving frame 812, the back side isolation moving frame 812 is of L-shaped structure, one end of the short shaft of the back side isolation moving frame 812 is provided with a back side isolation guide roller 813, one end of the long shaft of the back side isolation moving frame 812 is connected with a back side isolation frame driving member 814, the back side isolation sliding plate 811 can be lowered in the initial stage to give way to other structures, and after the negative electrode is separated, the back side isolation sliding plate 811 can be raised to cut off the negative electrode.

[0055] The separator starting end is blown out by the separator starting end reverse blowing member 82 arranged at the position opposite to the negative electrode stripping member 84, specifically, the separator starting end reverse blowing member 82 comprises a separator starting end reverse blowing frame 821 locked on the inner side wall of the negative electrode bin 80, the separator starting end reverse blowing frame 821 is locked with a separator starting end direction adjusting frame 822, the separator starting end direction adjusting frame 822 is movably provided with a separator starting end air knife 823, so that the starting end of the separator can be blown up by the reverse arrangement.

[0056] After the starting end of the separator is blown up, the boundary between the negative electrode and the separator and the positive electrode is relatively obvious, at this time, the negative electrode can be directly acted on by the negative electrode stripping member 84, specifically, the negative electrode stripping member 84 comprises a negative electrode bin external frame 841 arranged on the outer side of the negative electrode bin 80, the negative electrode bin external frame 841 is provided with an air knife containing groove 842, and the negative electrode bin external frame 841 is provided with a negative electrode stripping air knife 843 in the air knife containing groove 842, the negative electrode can be blown up by the negative electrode stripping air knife 843.

[0057] Since the angle of the feeding of different core packs may be deviated, the boundary position between the negative electrode and the separator is also deviated, therefore, the negative electrode stripping air knife 843 of the embodiment is hinged in the air knife containing groove 842, the bottom of the negative electrode bin external frame 841 is provided with a plurality of negative electrode air knife push rods 844, the output end of the negative electrode air knife push rod 844 is connected to the bottom of the negative electrode stripping air knife 843, so that the position of the negative electrode stripping air knife 843 can be adjusted, thereby being suitable for different types of core packs.

[0058] The part of the core package between the existing guide structure and the shearing structure is easy to bend, which causes the insufficient tension of the part of the core package entering the shearing position, therefore, the core package separation guide assembly is arranged, after the core package passes through the guide roller group 91, the core package can be immediately blown downward by the guide air knife piece 92, so that the core package is laid on the guide pressure bearing plate 93, and the core package separation pressure structure 94 pushes out to press the core package on the guide pressure bearing plate 93, so that the starting position of the core package becomes flat, and the continuously transmitted core package is always flat output under the guidance of the guide air knife piece 92 and the guide pressure bearing plate 93.

[0059] The power source for continuously separating and outputting the core package after being clamped by the initial clamping structure is from the guide roller group 91, specifically, the top of the separation guide gantry 90 is provided with a movable guide roller driving piece 901, the bottom of the movable guide roller driving piece 901 is provided with a movable guide roller mounting seat 902, the top of the movable guide roller mounting seat 902 is connected with the separation guide gantry 90 through at least two movable guide roller limiting rods 903, the guide roller group 91 comprises a movable guide roller 911 arranged in the inner side of the movable guide roller mounting seat 902, the inner bottom of the separation guide gantry 90 is provided with a fixed guide roller 912, one side of the fixed guide roller 912 is driven by a fixed guide roller driving piece 913, so that the movable guide roller 911 can be lifted when the clamping structure passes, and the movable guide roller 911 can be lowered when the core package needs to be transmitted, and the fixed guide roller driving piece 913 drives the fixed guide roller 912 to provide a backward force.

[0060] The setting position of the guide air knife piece 92 needs to be close to the core package without interfering with other structures, specifically, the guide air knife piece 92 comprises a guide air knife mounting frame 921 locked on the movable guide roller mounting seat 902, the bottom end of the guide air knife mounting frame 921 is provided with a guide air knife 922, so that the guide air knife 922 can be lowered to the closest position from the core package with the movable guide roller mounting seat 902.

[0061] In order to better guide the falling position of the core package, the guide pressure bearing plate 93 is a square plate, one side of the guide pressure bearing plate 93 towards the guide air knife 922 is a rounded corner, and the position of the core package bending is always attached to the position of the rounded corner.

[0062] The starting position of the core package after being blown out can be curved or uneven, and if it directly falls into the shearing structure, it can be difficult to cut evenly. Therefore, the outer side of the separation guide gantry 90 is provided with a side ear seat 904, and the core package separation pressing structure 94 comprises a pressing guide rod 941 locked on the side ear seat 904. The core package separation pressing seat 942 is slidably installed on the pressing guide rod 941. The side away from the side ear seat 904 is provided with a core package separation positioning seat 943 in sliding connection with the pressing guide rod 941. The core package separation positioning seat 943 is provided with a core package separation driving member 944. The output end of the core package separation driving member 944 is connected with the core package separation pressing seat 942. The core package separation driving member 944 can push the core package separation pressing seat 942 out, so that the core package starting position is flattened at the position of the guide pressure bearing plate 93, so that it can fall smoothly and straightly.

[0063] Specifically, the core package separation pressing seat 942 comprises a core package separation sleeve 9421 connected to the pressing guide rod 941. The core package separation sleeve 9421 is locked on a core package separation synchronization plate 9422. The side away from the guide pressure bearing plate 93 is connected with the core package separation driving member 944. The side close to the guide pressure bearing plate 93 is locked with a core package separation pressing plate 9423 matched with the guide pressure bearing plate 93. The core package separation pressing plate 9423 matched with the guide pressure bearing plate 93 can completely cover the core package, so as to ensure that the whole surface of the core package can be flattened.

[0064] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A battery cell pole piece separation mechanism, characterized in that: include: A separation module (100), wherein the separation module (100) is in communication with a collecting bin (200), wherein the interior of the separation module (100) comprises an upper guide separation device, a lower separation device, and a guide structure, wherein the upper guide separation device comprises an upper guide gantry (70), wherein at least two separation guide rods (71) are fixedly connected to the upper guide gantry (70), and the upper separation guide structure comprises an upper rear stripping member (73) movably connected to the separation guide rod (71), wherein the upper rear stripping member (73) is provided with an upper pressing guide member (74) movably connected to the guide rod (71), a starting pressing member (75), an upper clearing member (76), and an end guide member (77) of the pole piece on a side away from the upper guide gantry (70), and an upper guide driving member (78) is provided on the upper pressing guide member (74), the starting pressing member (75), the upper clearing member (76), and the end guide member (77) of the pole piece; The lower separation device comprises a back-side isolation pressure member (81) slidably arranged on the side wall of the negative electrode bin (80), a diaphragm start back-flushing member (82) is arranged on the inner side of the negative electrode bin (80), a lower end rear stripping member (83) is connected to the side of the diaphragm start back-flushing member (82) away from the back-side isolation pressure member (81), and a negative electrode stripping member (84) is arranged on the outer side of the negative electrode bin (80), after the diaphragm start back-flushing member (82) blows out the diaphragm start, the negative electrode stripping member (84) blows into the gap between the negative electrode and the diaphragm to separate the negative electrode from the diaphragm; The guide structure includes a separation guide gantry (90), and a guide roller group (91) that can be raised and lowered is provided on the inner side of the separation guide gantry (90). The guide roller group (91) is used to pass the core package, and the core package separation guide assembly includes a guide air blade (92) provided on the side of the guide roller group (91) away from the feed side. A guide pressure plate (93) is provided below the guide air blade (92) and at a position connected to the separation guide gantry (90). A core package separation pressure structure (94) is also provided on the side of the separation guide gantry (90) close to the guide pressure plate (93). After being guided by the guide roller group (91), the core package is attached to the guide pressure plate (93) under the downward action of the guide air blade (92), and the core package separation pressure structure (94) is pressed against the guide pressure plate (93) after being pushed out.

2. A battery cell electrode separation mechanism according to claim 1, characterized in that: The upper end rear stripping member (73) includes a first movable sleeve (731) slidably connected to the separation guide rod (71), the first movable sleeve (731) is movably connected to the separation guide rod (71) through a locking member, the lower ends of the two first movable sleeves (731) are connected to an upper end stripping frame (732), the inner side of the upper end stripping frame (732) is connected to an upper stripping air knife (733), the lower end rear stripping member (83) includes at least one rear stripping mounting rod (831) connected, a rear stripping air knife (832) is installed on the rear stripping mounting rod (831), the rear stripping mounting rod (831) is installed on the rear stripping push rod (833), and the rear stripping push rod (833) is installed on the inner side of the negative electrode bin (80).

3. The battery cell electrode separation mechanism according to claim 1, characterized in that: The upper guide drive member (78) includes two second movable sleeves (781) sleeved on the separation guide rod (71), a separation guide cross plate (782) is locked between the two second movable sleeves (781), and a guide separation drive member (783) is locked on the separation guide cross plate (782). The guide separation drive members (783) at different positions are respectively connected to the upper clamping guide member (74), the starting clamping member (75), the upper end cleaning member (76), and the pole piece end guide member (77). The upper clamping guide member (74), the starting clamping member (75), the upper end cleaning member (76) and the pole piece end guide member (77) are connected to the upper clamping guide member (74), the starting clamping member (75), the upper end cleaning member (76) and the pole piece end guide member (77). The cleaning piece (76) and the pole piece end guide (77) are both connected to a linear guide frame (784), and the linear guide frame (784) includes a linear guide sleeve (7841) locked on the separation guide cross plate (782). The top of the linear guide rod (7842) is movably installed on the inner side of the linear guide sleeve (7841) and is extended and fixed to the upper clamping guide (74), the starting clamping piece (75), the upper end cleaning piece (76), and the pole piece end guide (77). The tops of the two linear guide rods (7842) are both connected to a special-shaped synchronous moving plate (7843).

4. A battery cell electrode separation mechanism according to claim 1, characterized in that: The lower end of the upper pressing guide member (74) is provided with an upper pressing guide frame (741) connected to the bottom output end of the guide separation drive member (783), the two ends of the top surface of the upper pressing guide frame (741) are connected to the linear guide rod (7842), the inner side of the upper pressing guide frame (741) is provided with an upper pressing guide roller (742), the starting pressing member (75) includes a starting connecting plate (751) connected to the linear guide rod (7842) and the guide separation drive member (783), the lower end of the starting connecting plate (751) is connected to a pressure cone plate (752), the upper end cleaning member (76) includes an upper end cleaning guide frame (761) connected to the linear guide rod (7842) and the guide separation drive member (783), and the inner side of the upper end cleaning member (76) is locked with a cleaning air knife (762).

5. The battery cell electrode separation mechanism according to claim 1, characterized in that: The pole piece end guide (77) includes a pole piece guide seat (771) arranged at the lower end of a linear guide rod (7842) and a guide separation drive member (783), a U-shaped seat (772) is provided at the lower end of the pole piece guide seat (771), and the pole piece moves to the next work station through the U-shaped seat (772), and the U-shaped seat (772) includes an upper hollow bucket (7721) connected to the pole piece guide seat (771), and the lower end of the upper hollow bucket (7721) is connected to two pole piece guide plates (7722), and the pole piece guide plates (7722) are all chamfered along the direction of pole piece conveying.

6. The battery cell electrode separation mechanism according to claim 1, characterized in that: A negative pole bin guide rail (801) is provided on the outer side of the negative pole bin (80), the back side isolation pressure member (81) comprises a back side isolation sliding plate (811) connected to the negative pole bin guide rail (801), the side isolation sliding plate (811) is connected to a back side isolation movable frame (812), the back side isolation movable frame (812) is an L-shaped structure, a back side isolation guide roller (813) is installed on one end of the short axis of the back side isolation movable frame (812), and a back side isolation frame driving member (814) is connected to one end of the long axis of the back side isolation movable frame (812).

7. The battery cell electrode separation mechanism according to claim 1, characterized in that: The diaphragm start backflush component (82) includes a diaphragm start backflush frame (821) locked on the inner wall of the negative electrode bin (80), a diaphragm start direction adjustment frame (822) is locked on the diaphragm start backflush frame (821), and a diaphragm start air knife (823) is movably installed on the diaphragm start direction adjustment frame (822).

8. The battery cell electrode separation mechanism according to claim 1, characterized in that: The negative electrode stripping member (84) includes a negative electrode bin external frame (841) arranged outside the negative electrode bin (80), a wind knife accommodating groove (842) is provided on the negative electrode bin external frame (841), a negative electrode stripping wind knife (843) is arranged in the wind knife accommodating groove, and the negative electrode stripping wind knife (843) is hinged in the wind knife accommodating groove (842). A plurality of negative electrode wind knife push rods (844) are installed at the bottom of the negative electrode bin external frame (841), and the output end of the negative electrode wind knife push rod (844) is connected to the bottom of the negative electrode stripping wind knife (843).

9. The battery cell electrode separation mechanism according to claim 1, characterized in that: The guide air knife component (92) includes a guide air knife mounting frame (921) locked on the movable guide roller mounting seat (902), and a guide air knife (922) is provided at the bottom end of the guide air knife mounting frame (921). The guide pressure plate (93) is a square plate, and the side of the guide pressure plate (93) facing the guide air knife (922) is a rounded corner.

10. The battery cell electrode separation mechanism according to claim 1, characterized in that: A side ear seat (904) is provided on the outer side of the separation guide gantry (90), the core package separation pressure structure (94) comprises a pressure guide rod (941) locked on the side ear seat (904), a core package separation pressure seat (942) is slidably mounted on the pressure guide rod (941), a core package separation positioning seat (943) slidably connected to the pressure guide rod (941) is provided on the side of the core package separation pressure seat (942) away from the side ear seat (904), a core package separation driving member (944) is installed on the core package separation positioning seat (943), and the core package separation driving member (944) is provided. ) is connected to the core package separation pressure seat (942), the core package separation pressure seat (942) includes a core package separation sleeve (9421) connected to the pressure guide rod (941), the core package separation sleeve (9421) is locked on a core package separation synchronization plate (9422), the side of the core package separation synchronization plate (9422) away from the guide pressure plate (93) is connected to the core package separation driving member (944), and the side of the core package separation synchronization plate (9422) close to the guide pressure plate (93) is locked with a core package separation pressure plate (9423) adapted to the guide pressure plate (93).

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