Separating device for lithium battery pole piece processing

Abstract

The utility model discloses a lithium battery pole piece processing separating device which comprises a grinding box, a bottom plate, a preliminary grinding mechanism, a re-pressing mechanism and a filtering conveying mechanism, the preliminary grinding mechanism comprises a grinding motor, a transmission assembly, a meshing assembly, a filtering box, a smashing shaft and smashing blades; the re-pressing mechanism comprises a supporting frame, a re-pressing motor, a rotating rod, a rotating frame, a push rod, an outer push plate, a movable rod and a re-pressing plate, the filtering and conveying mechanism comprises a filtering plate, a connecting hopper, a spiral conveying assembly and a discharging hopper, power is provided through a grinding motor and a transmission assembly, and materials are preliminarily ground through high-speed rotation of a smashing shaft and smashing blades; and through cooperative work of a re-pressing motor, a rotating rod, a rotating frame, a push rod, an outer push plate, a movable rod and a re-pressing plate, the materials are repeatedly crushed, and the separation efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole piece separation, and more specifically, it relates to a separation device for processing lithium battery pole pieces. Background Art

[0002] In the existing technology, a lithium battery is a type of battery with lithium metal or lithium alloy as the positive and negative electrode materials and using a non-aqueous electrolyte solution. When recycling the pole pieces of a lithium battery, the pole pieces usually need to be crushed. Currently, when crushing the pole pieces, in the prior art 2023202237726, a large amount of crushed positive and negative electrode materials enter the filtering component and cannot be processed further. It is necessary to take them out and process them repeatedly, which is rather cumbersome and laborious.

[0003] Firstly, the materials in the device cannot be effectively pretreated, which may lead to a reduction in the efficiency of subsequent processing steps. The subsequent equipment may require more energy to complete the preliminary crushing work, thus increasing the overall energy consumption. Preliminary crushing helps to improve the separation effect of the materials. The lack of this step may lead to incomplete separation and affect the quality of the final product.

[0004] Secondly, the preliminarily crushed pole pieces in the device may not be effectively separated. The reprocessing of larger pole pieces is rather cumbersome, resulting in unstable operation and affecting production efficiency. Finally, some device materials are blocked or jammed during the processing, affecting production continuity, and the dust during the filtering process affects the processing effect. The lack of continuous conveying leads to a low discharge rate of the device. Summary of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the utility model provides a separation device for processing lithium battery pole pieces to solve the technical problems mentioned in the background art, such as the materials cannot be effectively pretreated and the preliminarily crushed pole pieces may not be effectively separated.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solution: A separation device for processing lithium battery electrode sheets, including a crushing box, a bottom plate, a preliminary crushing mechanism, a re-pressing mechanism, and a filtering and conveying mechanism. The preliminary crushing mechanism includes a crushing motor, a transmission assembly, a meshing assembly, a filtering box, a crushing shaft, and crushing blades. The crushing motor is installed on the side of the crushing box, the transmission assembly is installed at the output end of the crushing motor, two groups of crushing shafts extend into the interior of the crushing box and are rotatably supported in cooperation, and two groups of meshing crushing blades are installed on the crushing shafts in cooperation. The re-pressing mechanism includes a support frame, a re-pressing motor, a rotating rod, a rotating frame, a push rod, an outer push plate, a movable rod, and a re-pressing plate. The support frames are symmetrically installed at both ends of the filtering box, the re-pressing motor is installed on the support frame, the rotating rod is installed at the output end of the re-pressing motor, the rotating frame is hinged with the rotating rod in cooperation, the two ends of the push rod are respectively hinged with the rotating frame and the outer push plate, the movable rod is installed on one side of the outer push plate, and the other end of the movable rod is arranged in cooperation with the re-pressing plate. The two groups of re-pressing plates move relatively and squeeze in the filtering box, and the movable rod reciprocates and slides through the outer end wall of the crushing box in cooperation.

[0009] The present utility model is further configured such that the filtering and conveying mechanism includes a filter plate, a connecting hopper, a screw conveying assembly, and a discharge hopper. The filter plate is installed on the bottom wall of the filtering box, the screw conveying mechanism is installed at the bottom of the filtering box, and the connecting hopper is installed between the filtering box and the screw conveying mechanism. The interior of the filtering box and the interior of the screw conveying assembly are connected in communication through the filter plate and the connecting hopper in cooperation, and the discharge hopper is installed at the bottom end of the screw conveying assembly.

[0010] The present utility model is further configured such that an adding hopper is installed at the top of the crushing box, and the adding hopper is in communication with the crushing box. The filtering box is in communication with the crushing box. The internal communication ensures the smooth flow of materials, reducing blockage and jamming.

[0011] The present utility model is further configured such that a dust removal box is installed on the top end face of the bottom plate, and a dust removal fan is installed on the side of the dust removal box. The dust removal box collects the dust generated during the crushing process, improving the cleanliness of the working environment.

[0012] The present utility model is further configured such that a dust removal pipe is installed on the top of the dust removal fan, and the other end of the dust removal pipe is connected in communication with the side wall of the filtering box. The dust removal fan and the dust removal pipe suck the dust into the dust removal box through suction, increasing the filtering and separation effect.

[0013] The present utility model is further configured such that a guide rod is installed inside the filtering box, and a guide groove is formed on the re-pressing plate, and the guide rod extends into the guide groove and is arranged to slide in a directional manner in cooperation. The guide rod and the guide groove ensure the directional sliding of the re-pressing plate, improving the accuracy of operation.

[0014] The present utility model is further configured such that one end of the support frame is provided with a directional rod, and the other end of the directional rod is cooperatively connected to the side end of the filter box, and the outer push plate is slidably and guidingly arranged on the directional rod.

[0015] The present utility model is further configured such that legs are installed around the bottom end face of the bottom plate, and a support pillar is installed between the bottom of the support frame and the top of the bottom plate. The support pillar connects the support frame and the bottom plate, enhancing the stability of the entire structure.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a separation device for processing lithium battery electrode sheets, having the following beneficial effects:

[0018] The present utility model is provided with a preliminary crushing mechanism. Power is provided by a crushing motor and a transmission component, and the high-speed rotation of the crushing shaft and crushing blades realizes the preliminary crushing of materials, improving the crushing efficiency. The meshing design of the two groups of crushing blades helps to achieve uniform crushing of materials, providing better raw materials for subsequent processing steps.

[0019] The present utility model is provided with a repressing mechanism. Through the cooperative work of a repressing motor, a rotating rod, a rotating frame, a push rod, an outer push plate, a movable rod, and a repressing plate, the materials are repeatedly crushed, improving the separation efficiency of the device. The design of the guiding rod and the guiding groove ensures the directional sliding of the repressing plate, improving the accuracy of operation.

[0020] The present utility model is provided with a filtering and conveying mechanism. The combination of a filter plate, a connecting hopper, a screw conveying component, and a discharging hopper ensures the smooth filtering and conveying of the crushed materials, improving the production efficiency. The setting of the discharging hopper enables the materials to be effectively separated and discharged, ensuring the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the whole device of the present utility model in an unused state;

[0022] Figure 2 is a schematic structural diagram of the preliminary crushing mechanism of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the whole device of the present utility model in a state of being cut in the middle;

[0024] Figure 4 is a schematic structural diagram of the repressing mechanism of the present utility model;

[0025] Figure 5 is a schematic structural diagram of the detailed repressing mechanism of the present utility model.

[0026] In the figure: 1, crushing box; 2, crushing motor; 3, transmission assembly; 4, meshing assembly; 5, filtering box; 6, shredding shaft; 7, shredding blade; 8, support frame; 9, repressing motor; 10, rotating rod; 11, rotating frame; 12, push rod; 13, outer pushing plate; 14, movable rod; 15, repressing plate; 16, filter plate; 17, connecting hopper; 18, screw conveyor assembly; 19, discharging hopper; 20, adding hopper; 21, dust removal box; 22, dust removal fan; 23, dust removal pipe; 24, guide rod; 25, guide groove; 26, orienting rod; 27, support leg; 28, support pillar; 29, bottom plate. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in combination with the embodiments.

[0028] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0029] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inner, outer" refer to the inner and outer of the contours of each component itself, but the above orientation terms do not limit the present utility model.

[0030] Please refer to Figures 1-5 , a separation device for lithium battery electrode sheet processing, including a crushing box 1, a bottom plate 29, a preliminary crushing mechanism, a repressing mechanism and a filtering and conveying mechanism. The preliminary crushing mechanism includes a crushing motor 2, a transmission assembly 3, a meshing assembly 4, a filtering box 5, a shredding shaft 6 and a shredding blade 7. The crushing motor 2 is installed on the side of the crushing box 1, the transmission assembly 3 is installed at the output end of the crushing motor 2, two groups of shredding shafts 6 extend into the interior of the crushing box 1 and are rotatably supported in cooperation, and two groups of meshing shredding blades 7 are installed on the shredding shafts 6 in cooperation. The repressing mechanism includes a support frame 8, a repressing motor 9, a rotating rod 10, a rotating frame 11, a push rod 12, an outer pushing plate 13, a movable rod 14 and a repressing plate 15. The support frames 8 are symmetrically installed at both ends of the filtering box 5, the repressing motor 9 is installed on the support frame 8, the rotating rod 10 is installed at the output end of the repressing motor 9, the rotating frame 11 is hinged with the rotating rod 10 in cooperation, both ends of the push rod 12 are respectively hinged with the rotating frame 11 and the outer pushing plate 13, the movable rod 14 is installed on one side of the outer pushing plate 13, the other end of the movable rod 14 is arranged in cooperation with the repressing plate 15, two groups of repressing plates 15 perform relative extrusion movement in the filtering box 5, and the movable rod 14 is slidably arranged through the outer end wall of the crushing box 1 in cooperation and reciprocates.

[0031] In this embodiment, at this time, the pole pieces to be broken are put into the crushing box 1 through the feeding hopper 20. The crushing motor 2 is started, and the stirring shaft 6 is driven to rotate through the transmission assembly 3. The two groups of meshing stirring blades 7 rotate in the crushing box 1 to preliminarily crush the lithium battery pole pieces. The stirring blades 7 continue to rotate to ensure that the pole pieces are fully crushed. At this time, the crushed pole pieces flow into the filtering box 5 for screening. The dust is sucked away by the dust removal box 21, and the larger lithium battery pole piece particles cannot continue to be filtered and screened. At this time, the repressing motor 9 is started to drive the rotating rod 10 to rotate. The rotating rod 10 drives the rotating frame 11 to rotate. The rotating frame 11 drives the outer pushing plate 13 to reciprocate through the push rod 12. The outer pushing plate 13 drives the movable rod 14 to reciprocate on the outer wall of the crushing box 1. The movable rod 14 drives the repressing plate 15 to move relatively and squeeze in the filtering box 5. The guiding rod 24 slides in the guiding groove 25 of the repressing plate 15 to ensure the accurate movement direction of the repressing plate 15, and the lithium battery pole pieces are crushed again and filtered.

[0032] The filtering and conveying mechanism includes a filter plate 16, a connecting hopper 17, a screw conveying assembly 18 and a discharge hopper 19. The filter plate 16 is installed on the bottom wall of the filtering box 5. The screw conveying mechanism is installed at the bottom of the filtering box 5, and the connecting hopper 17 is installed between the filtering box 5 and the screw conveying mechanism. The interior of the filtering box 5 and the interior of the screw conveying assembly 18 are communicated through the cooperation of the filter plate 16 and the connecting hopper 17. The discharge hopper 19 is installed at the bottom end of the screw conveying assembly 18.

[0033] In this embodiment, the crushed material is preliminarily screened through the filter plate 16. The material passing through the filter plate 16 enters the connecting hopper 17. The material enters the screw conveying assembly 18 from the connecting hopper 17. The pole pieces that have been crushed again repeat the action. The material enters the screw conveying assembly 18 from the connecting hopper 17. The screw conveying assembly 18 conveys the material to the discharge hopper 19 to complete the separation process.

[0034] Please refer to Figures 1-5, As a supplementary implementation mode of a separation device for processing lithium battery electrodes for the preliminary crushing mechanism, the repressing mechanism, and the filtering and conveying mechanism: An adding hopper 20 is installed at the top of the crushing box 1, and the adding hopper 20 is communicated with the crushing box 1. The filtering box 5 is communicated with the crushing box 1. A dust removal box 21 is installed on the top end face of the bottom plate 29, and a dust removal fan 22 is installed on the side of the dust removal box 21. A dust removal pipe 23 is installed on the top of the dust removal fan 22, and the other end of the dust removal pipe 23 is in mating communication with the side wall of the filtering box 5. A guide rod 24 is installed inside the filtering box 5, and a guide groove 25 is formed on the repressing plate 15, and the guide rod 24 extends into the guide groove 25 and is arranged to slide directionally in cooperation. One end of the support frame 8 is fixedly installed with a directional rod 26, and the other end of the directional rod 26 is in mating connection with the side end of the filtering box 5. Legs 27 are installed around the bottom end face of the bottom plate 29, and a support column 28 is installed between the bottom of the support frame 8 and the top of the bottom plate 29.

[0035] More specifically, check the integrity of each component to ensure that the legs 27 and the support column stably support the entire device. Put the lithium battery electrode into the crushing box 1 through the adding hopper 20. Start the crushing motor 2, and the crushing blades 7 start to rotate. The electrode is preliminarily crushed in the crushing box 1. Start the repressing motor 9, and the repressing plate 15 starts to reciprocate. The crushed material is further crushed and separated. The crushed and repressed material is screened through the filter plate 16. The qualified material enters the spiral conveying assembly 18 through the connecting hopper 17. Start the dust removal fan 22, and perform dust removal on the inside of the filtering box 5 through the dust removal pipe 23 to reduce dust pollution and improve the separation effect. The spiral conveying assembly 18 conveys the separated material to the discharge hopper 19. Each mechanism operates continuously to continuously process the input electrodes. Regularly check the status of the filter plate 16 and the spiral conveying assembly 18, regularly clean the filter plate 16 and the connecting hopper 17, and check and clean the crushing blades 7 and the repressing plate 15.

[0036] In summary, when the overall equipment is in use or operation: When the operation of the preliminary crushing mechanism is required, at this time, the electrode to be broken is put into the crushing box 1 through the adding hopper 20. The crushing motor 2 is started, and the crushing shaft 6 is driven to rotate through the transmission assembly 3. The two meshing crushing blades 7 rotate in the crushing box 1 to preliminarily crush the lithium battery electrode. The crushing blades 7 continue to rotate to ensure that the electrode is fully crushed.

[0037] When the operation of the double-pressing mechanism is required, the crushed electrode sheets flow into the filter box 5 for screening at this time. The dust is sucked away by the dust removal box 21, and the larger lithium battery electrode sheet particles cannot continue to be filtered and screened. At this time, the double-pressing motor 9 starts, driving the rotating rod 10 to rotate. The rotating rod 10 drives the rotating frame 11 to rotate. The rotating frame 11 drives the outer push plate 13 to reciprocate through the push rod 12. The outer push plate 13 drives the movable rod 14 to slide reciprocally on the outer wall of the crushing box 1. The movable rod 14 drives the double-pressing plate 15 to move relatively and squeeze in the filter box 5. The guide rod 24 slides in the guide groove 25 of the double-pressing plate 15 to ensure the accurate movement direction of the double-pressing plate 15, and the lithium battery electrode sheets are crushed again and filtered.

[0038] When the operation of the filtering and conveying mechanism is required, the crushed materials are preliminarily screened through the filter plate 16. The materials passing through the filter plate 16 enter the connecting hopper 17. The materials enter the screw conveying assembly 18 from the connecting hopper 17. The electrode sheets after being crushed again repeat the action. The materials enter the screw conveying assembly 18 from the connecting hopper 17. The screw conveying assembly 18 conveys the materials to the discharge hopper 19 to complete the separation process.

[0039] Check the integrity of each component to ensure that the legs 27 and the columns stably support the entire device. Put the lithium battery electrode sheets into the crushing box 1 through the feeding hopper 20. Start the crushing motor 2, and the crushing blades 7 start to rotate. The electrode sheets are preliminarily crushed in the crushing box 1. Start the double-pressing motor 9, and the double-pressing plate 15 starts to reciprocate. The crushed materials are further crushed and separated. The crushed and double-crushed materials are screened through the filter plate 16. The qualified materials enter the screw conveying assembly 18 through the connecting hopper 17. Start the dust removal fan 22, and perform dust removal on the inside of the filter box 5 through the dust removal pipe 23 to reduce dust pollution and improve the separation effect. The screw conveying assembly 18 conveys the separated materials to the discharge hopper 19. Each mechanism runs continuously to continuously process the input electrode sheets. Regularly check the states of the filter plate 16 and the screw conveying assembly 18, regularly clean the filter plate 16 and the connecting hopper 17, and check and clean the crushing blades 7 and the double-pressing plate 15.

[0040] In all the above-mentioned solutions, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those that involve fixed connection in the above text, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A separating device for processing lithium battery electrode sheets, comprising a crushing box (1), a bottom plate (29), a preliminary crushing mechanism, a double-pressing mechanism and a filtering and conveying mechanism, characterized in that: The preliminary crushing mechanism includes a crushing motor (2), a transmission component (3), a meshing component (4), a filtering box (5), a crushing shaft (6) and crushing blades (7). The crushing motor (2) is installed on the side of the crushing box (1). The transmission component (3) is installed at the output end of the crushing motor (2). Two groups of crushing shafts (6) extend into the interior of the crushing box (1) and are rotatably supported in cooperation. Two groups of meshing crushing blades (7) are installed on the crushing shafts (6) in cooperation. The repressing mechanism includes a support frame (8), a repressing motor (9), a rotating rod (10), a rotating frame (11), a push rod (12), an outer pushing plate (13), a movable rod (14) and a repressing plate (15). The support frames (8) are symmetrically installed at both ends of the filtering box (5). The repressing motor (9) is installed on the support frame (8). The rotating rod (10) is installed at the output end of the repressing motor (9). The rotating frame (11) is hinged with the rotating rod (10) in cooperation. The two ends of the push rod (12) are respectively hinged with the rotating frame (11) and the outer pushing plate (13). The movable rod (14) is installed on one side of the outer pushing plate (13). The other end of the movable rod (14) is arranged in cooperation with the repressing plate (15).

2. The separating device for processing lithium battery electrode sheets according to claim 1, wherein: The filtering and conveying mechanism includes a filter plate (16), a connecting hopper (17), a screw conveying component (18) and a discharging hopper (19). The filter plate (16) is installed on the bottom wall of the filtering box (5). The screw conveying mechanism is installed at the bottom of the filtering box (5). The connecting hopper (17) is installed between the filtering box (5) and the screw conveying mechanism. The interior of the filtering box (5) and the interior of the screw conveying component (18) are communicated in cooperation through the filter plate (16) and the connecting hopper (17). The discharging hopper (19) is installed at the bottom end of the screw conveying component (18).

3. The separating device for processing lithium battery electrode sheets according to claim 1 is characterized in that: A feeding hopper (20) is installed at the top of the crushing box (1), and the feeding hopper (20) is communicated with the crushing box (1). The filtering box (5) is communicated with the crushing box (1).

4. A separating device for processing lithium battery electrode sheets according to claim 1, characterized in that: A dust removal box (21) is installed on the top end face of the bottom plate (29), and a dust removal fan (22) is installed on the side of the dust removal box (21).

5. The separating device for processing lithium battery electrode sheets according to claim 4, wherein: A dust removal pipe (23) is installed at the top of the dust removal fan (22), and the other end of the dust removal pipe (23) is communicated with the side wall of the filtering box (5) in cooperation.

6. The separating device for processing lithium battery electrode sheets according to claim 1, characterized in that: A guide rod (24) is installed inside the filtering box (5). A guide groove (25) is formed on the repressing plate (15). The guide rod (24) extends into the guide groove (25) and is slidably arranged in cooperation for orientation.

7. A separating device for processing lithium battery electrode sheets according to claim 1, characterized in that: One end of the support frame (8) is fixedly installed with an orientation rod (26), and the other end of the orientation rod (26) is connected with the side end of the filtering box (5) in cooperation.

8. A separating device for processing lithium battery electrode sheets according to claim 1, characterized in that: Legs (27) are installed around the bottom end face of the bottom plate (29), and a support column (28) is installed between the bottom of the support frame (8) and the top of the bottom plate (29).

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