Roll core recovery device

Abstract

The utility model discloses a roll core recovery device which is used for collecting a winding type roll core, the winding type roll core comprises a diaphragm, a positive plate and a negative plate, the roll core recovery device comprises a base frame, and a roll core clamping mechanism, a first guide rod, a second guide rod, a diaphragm winding mechanism and a driving mechanism which are fixedly arranged on the base frame, the base frame is provided with a first blanking port for a positive plate to fall off and a second blanking port for a negative plate to fall off, a connecting line of the roll core clamping mechanism and the diaphragm winding mechanism intersects with a connecting line of the first guide rod and the second guide rod, and the driving mechanism and the diaphragm winding mechanism are installed in a linkage mode. According to the utility model, diaphragms, positive plates and negative plates can be effectively sorted, the sorting and recycling efficiency and success rate are improved, and the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of battery recycling technology, specifically relating to a battery core recycling device. Background Technology

[0002] In recent years, with the increasing production and sales of electric vehicles, the amount of retired and scrapped power batteries has also gradually increased. Power battery recycling and reuse is an essential green industry. Currently, power battery recycling processes mainly fall into three categories: physical methods, chemical methods (wet methods), and biological methods. Physical methods employ fully enclosed and automated dismantling processes, avoiding secondary pollution risks and producing no wastewater or waste residue. Using crushing, screening, and magnetic separation, they can effectively separate different materials in the battery, achieving full component recovery of individual cells. Chemical methods (wet methods) mainly extract valuable metals such as lithium, cobalt, and nickel from the battery through a series of chemical reactions such as leaching, extraction, and precipitation. This method has a high recovery rate for valuable metals; advanced companies can achieve lithium resource recovery rates of over 90%. Biological methods are still in the research and exploration stage and are not widely used. They utilize the metabolic activity of microorganisms to dissolve or convert metals in the battery into recyclable forms. Biological methods have advantages such as mild reaction conditions, low energy consumption, and minimal environmental pollution, but currently there are problems such as slow reaction speed, difficulty in microbial cultivation, and low metal recovery rate, and there is still some distance to go before large-scale industrial application.

[0003] In the physical crushing stage, directly feeding battery cells into the crusher results in low copper and aluminum recovery rates. The crushed black powder contains some copper and aluminum powder, which is not conducive to chemical leaching and purification. Existing core recycling mainly uses manual or automated methods. When manually sorting cores, it is not only impossible to sort cores efficiently in the long term, but it is also prone to subjective oversights. When sorting cores mechanically, the existing mechanical equipment is complex in structure, expensive, and cannot effectively sort cores.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a core recycling device.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a core recycling device that can effectively separate diaphragms, positive electrode sheets, and negative electrode sheets, thereby improving the efficiency and success rate of sorting and recycling, and reducing costs.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A core recycling device is provided for collecting wound cores, the wound cores including a diaphragm, a positive electrode sheet, and a negative electrode sheet. The core recycling device comprises a base frame and a core clamping mechanism, a first guide rod, a second guide rod, a diaphragm winding mechanism, and a driving mechanism fixedly mounted on the base frame. The base frame is provided with a first discharge port for the positive electrode sheet to fall and a second discharge port for the negative electrode sheet to fall. The line connecting the core clamping mechanism and the diaphragm winding mechanism intersects with the line connecting the first guide rod and the second guide rod. The driving mechanism is linked to the diaphragm winding mechanism.

[0009] In one or more embodiments of this utility model, the line connecting the core clamping mechanism and the first guide rod and the line connecting the core clamping mechanism and the second guide rod are equal; and / or,

[0010] The line connecting the core clamping mechanism and the diaphragm winding mechanism is perpendicular to the line connecting the first guide rod and the second guide rod.

[0011] In one or more embodiments of this utility model, the core clamping mechanism includes a fixed rod fixedly installed on the base frame, a rotating shaft rotatably installed on the fixed rod, and a plurality of elastic elements radially spaced on the rotating shaft. The horizontal distance between the elastic elements and the fixed rod gradually increases from top to bottom, and under stress, the elastic elements undergo elastic deformation toward the rotating shaft.

[0012] In one or more embodiments of this utility model, the first end of the elastic element is fixedly installed on the upper end of the rotating shaft, the second end of the elastic element is suspended on the side of the rotating shaft, and the first end is located above the second end.

[0013] In one or more embodiments of the present invention, the elastic element includes a third end located between the first end and the second end, and the horizontal distance between the third end and the fixed rod is greater than the horizontal distance between the second end and the fixed rod.

[0014] In one or more embodiments of the present invention, the diaphragm winding mechanism includes a winding rod, a connecting rod connected to the winding rod, and a bearing sleeved on the connecting rod. The connecting rod passes through the base frame and is linked to the drive mechanism. The bearing is disposed in the base frame.

[0015] In one or more embodiments of this utility model, the winding rods are provided at intervals.

[0016] In one or more embodiments of the present invention, the drive mechanism includes a driving wheel, a driven wheel, a synchronous belt that links the driving wheel and the driven wheel, and a rotary drive assembly mounted with the driving wheel, wherein the driven wheel is mounted with a diaphragm winding mechanism.

[0017] In one or more embodiments of the present invention, the rotary drive assembly includes a motor and a gearbox, the motor being connected to the input shaft of the gearbox, and the drive wheel being connected to the output shaft of the gearbox.

[0018] In one or more embodiments of the present invention, the base frame includes a platform and at least three support rods disposed on the corner of the platform, at least one of the support rods being non-collinear with the other support rods, the first material discharge port and the second material discharge port being disposed on the platform, and the base frame further includes a partition plate disposed between the first material discharge port and the second material discharge port.

[0019] Compared with the prior art, the core recycling device of this utility model has the following advantages:

[0020] This invention designs a battery core recycling device that can effectively separate separators, positive electrode sheets, and negative electrode sheets, achieving automatic sorting and recycling of battery cores. Mechanized sorting avoids human error and reduces recycling costs, while enabling continuous, efficient, and stable operation, thus improving the efficiency and success rate of sorting and recycling. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the core in the unfolded state according to one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the core in the wound state according to one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the core structure under applied external force in one embodiment of the present invention;

[0025] Figure 4 This is a schematic front view of the core recycling device in one embodiment of the present invention;

[0026] Figure 5This is a top view of the core recycling device in one embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the left side of the core recycling device in one embodiment of the present invention;

[0028] Figure 7 for Figure 5 Enlarged view of the local structure at point A;

[0029] Figure 8 This is a front view schematic diagram of the base frame and diaphragm winding mechanism in one embodiment of the present invention;

[0030] Figure 9 This is a top view of the drive mechanism in one embodiment of the present invention.

[0031] Explanation of key figure labels:

[0032] 1-Core; 11-Separator; 12-Positive electrode sheet; 13-Negative electrode sheet;

[0033] 2-Base frame; 21-Platform; 22-Support rod; 201-First material drop port; 202-Second material drop port;

[0034] 3-Core clamping mechanism; 31-Fixing rod; 32-Rotating shaft; 33-Elastic element; 331-First end; 332-Second end; 333-Third end;

[0035] 4-First guide rod;

[0036] 5-Second guide rod;

[0037] 6-Diaphragm winding mechanism; 61-Winding rod; 62-Connecting rod; 63-Bearing;

[0038] 7-Drive mechanism; 71-Driving wheel; 72-Driven wheel; 73-Synchronous belt; 74-Rotary drive assembly. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0043] Reference Figure 1 As shown, the winding core recycling device in this embodiment is used to collect wound cores 1, which include a diaphragm 11, a positive electrode plate 12, and a negative electrode plate 13. (Refer to...) Figure 1 As shown, the separator 11 in the core 1 is folded in half. In the unfolded state, one of the positive electrode 12 or the negative electrode 13 is sandwiched between the two folded separator parts 11, and the other of the positive electrode 12 or the negative electrode 13 is attached to the outer surface of the folded separator 11. (Refer to...) Figure 2 As shown, in the winding state, the stacked layers are wound into a cylindrical structure. For example, in this embodiment, the part between the two diaphragms 11 is the positive electrode 12, and the part on the outer surface of the folded diaphragm 11 is the negative electrode 13.

[0044] Reference Figures 3-6 As shown, the core recycling device in this embodiment includes a base frame 2 and a core clamping mechanism 3, a first guide rod 4, a second guide rod 5, a diaphragm winding mechanism 6, and a drive mechanism 7, all fixedly mounted on the base frame 2. The base frame 2 has a first discharge port 201 for the positive electrode sheet 12 to fall into and a second discharge port 202 for the negative electrode sheet 13 to fall into. The lines connecting the core clamping mechanism 3 and the diaphragm winding mechanism 6 intersect with the lines connecting the first guide rod 4 and the second guide rod 5. The drive mechanism 7 is linked to the diaphragm winding mechanism 6. When it is necessary to sort the core 1, an external force needs to be applied to the core 1 first. Under the applied external force, the innermost part of the core 1 separates to form a through cavity 10, facilitating the mounting of the core 1 onto the core clamping mechanism 3. Then, the two folded diaphragm sections 11 are passed through the first guide rod 4 and the second guide rod 5 respectively, and then wound by the diaphragm winding mechanism 6. Thus, the diaphragm 11 is pulled out from the core 1, passes through the first guide rod 4 or the second guide rod 5, and is wound onto the diaphragm winding mechanism 6. During this process, the positive electrode sheet 12 between the two diaphragm sections 11 is separated and falls from the first discharge port 201, while the negative electrode sheet 13 on the outer surface of the diaphragm 11 falls from the second discharge port 202.

[0045] Based on this design, the separator 11, positive electrode 12, and negative electrode 13 can be effectively separated, realizing the automatic sorting and recycling of battery core 1. Mechanized sorting can avoid human error and reduce recycling costs, while enabling continuous, efficient, and stable operation, thus improving the efficiency and success rate of sorting and recycling.

[0046] To facilitate the sorting of positive electrode 12 and negative electrode 13, refer to Figures 4-6 As shown, the base frame 2 in this application includes a platform 21 and at least three support rods 22 disposed on the corners of the platform 21. At least one of the support rods 22 is not collinear with the other support rods 22. A first discharge port 201 and a second discharge port 202 are disposed on the platform 21. The base frame 2 also includes a partition disposed between the first discharge port 201 and the second discharge port 202 to separate the falling positive electrode sheet 12 and negative electrode sheet 13. For example, the base frame 2 in this embodiment has four support rods 22, each of which is installed at the corner of the platform 21. The core clamping mechanism 3, the diaphragm winding mechanism 6, the first guide rod 4, and the second guide rod 5 are all installed on the platform 21. Mounting seats are installed on the support rods 22, and the drive mechanism 7 is installed on the mounting seats.

[0047] Preferably, refer to Figure 5 As shown, in this embodiment, the line connecting the core clamping mechanism 3 and the first guide rod 4 is equal to the line connecting the core clamping mechanism 3 and the second guide rod 5. Based on this design, the first guide rod 4 and the second guide rod 5 are symmetrically arranged on both sides of the diaphragm winding mechanism 6, so that they can remain synchronized as they pass through the first guide rod 4 and the second guide rod 5 respectively after the two parts of the diaphragm 11 are pulled out, facilitating the sorting of the diaphragm 11, the positive electrode sheet 12, and the negative electrode sheet 13.

[0048] Preferably, in order to facilitate applying approximately the same force to the two portions of the diaphragm 11 that have passed through the first guide rod 4 and the second guide rod 5 respectively, thereby facilitating the winding of the two portions of the diaphragm 11, refer to Figure 5 As shown, in this embodiment, the line connecting the core clamping mechanism 3 and the diaphragm winding mechanism 6 is perpendicular to the line connecting the first guide rod 4 and the second guide rod 5.

[0049] Reference Figure 6As shown, the core clamping mechanism 3 in this embodiment includes a fixed rod 31 fixedly mounted on the base frame 2, a rotating shaft 32 rotatably mounted on the fixed rod 31, and a plurality of elastic elements 33 radially spaced on the rotating shaft 32. The horizontal distance between the elastic elements 33 and the fixed rod 31 gradually increases from top to bottom, either wholly or partially. Under stress, the elastic elements 33 undergo elastic deformation toward the rotating shaft 32. During the elastic deformation process, elastic potential energy is stored in the elastic elements 33. It should be noted that as the external force gradually decreases to zero, the elastic elements 33 change from being stressed to being unstressed. Therefore, the elastic elements 33 gradually move away from the rotating shaft 32 and undergo elastic deformation until there is no elastic potential energy in the elastic elements 33. Under no-stress conditions, the maximum horizontal distance between the elastic element 33 and the fixing rod 31 is greater than the horizontal distance between the cavity 10 and the central axis of the core 1, and the minimum horizontal distance between the elastic element 33 and the fixing rod 31 is less than the horizontal distance between the cavity 10 and the central axis of the core 1, so as to facilitate the installation of the core 1 onto the rotating shaft 32. Under stress conditions (i.e., the state in which the core 1 is installed), the maximum horizontal distance between the elastic element 33 and the fixing rod 31 is less than the horizontal distance between the cavity 10 and the central axis of the core 1 (in this state, the central axis of the core 1 coincides with the axis of the rotating shaft 32). The elastic element 33 can be an elastic steel wire or a spring sheet that has a rebound force after being compressed.

[0050] For ease of installation of elastic element 33, refer to... Figure 6 As shown, in this application, the first end 331 of the elastic element 33 is fixedly installed on the upper end of the rotating shaft 32, and the second end 332 of the elastic element 33 is suspended beside the rotating shaft 32. The first end 331 is located above the second end 332. This design facilitates elastic deformation of the elastic element 33. The maximum horizontal distance between the elastic element 33 and the fixed rod 31 can gradually increase, either wholly or partially, from the first end 331 to the second end 332. For example, in this embodiment, the horizontal distance between the elastic element 33 and the fixed rod 31 first gradually increases and then gradually decreases from the first end 331 to the second end 332.

[0051] Preferably, refer to Figure 6 As shown, the elastic element 33 in this application includes a third end 333 located between the first end 331 and the second end 332. The horizontal distance between the third end 333 and the fixed rod 31 is greater than the horizontal distance between the second end 332 and the fixed rod 31. For example, in this embodiment, the horizontal distance between the elastic element 33 and the fixed rod 31 gradually increases from the first end 331 to the third end 333, and in this embodiment, the horizontal distance between the elastic element 33 and the fixed rod 31 gradually decreases from the third end 333 to the second end 332.

[0052] To facilitate the winding and collection of the diaphragm 11 via the diaphragm winding mechanism 6, refer to... Figure 7 , Figure 8 As shown, the diaphragm winding mechanism 6 in this embodiment includes a winding rod 61, a connecting rod 62 connected to the winding rod 61, and a bearing 63 sleeved on the connecting rod 62. The connecting rod 62 passes through the base frame 2 and is linked to the drive mechanism 7. The bearing 63 is disposed in the base frame 2. The design of the bearing 63 facilitates the rotation of the connecting rod 62.

[0053] To facilitate winding the diaphragm 11 onto the winding rod 61 and prevent the diaphragm 11 from detaching from the winding rod 61, refer to... Figure 8 As shown, multiple winding rods 61 are spaced apart in this application. For example, there are two winding rods 61 in this embodiment. Of course, in other embodiments, there may be three or four, etc.

[0054] In order to drive the winding rod 61 to rotate via the drive mechanism 7, refer to Figure 9 As shown, the drive mechanism 7 in this embodiment includes a drive wheel 71, a driven wheel 72, a synchronous belt 73 that links the drive wheel 71 and the driven wheel 72, and a rotary drive assembly 74 mounted with the drive wheel 71. The driven wheel 72 is mounted with the diaphragm winding mechanism 6. The rotary drive assembly 74 in this application can be a DC motor, an AC asynchronous motor, an AC synchronous motor, or other rotary drive assembly 74 with rotary drive function. Of course, in other embodiments, the rotary drive assembly 74 can also be a pedal linked to the drive wheel 71, where the speed of the drive wheel 71 is controlled by the speed of pedal operation, thereby reasonably controlling the production cycle.

[0055] The rotary drive assembly 74 in this embodiment includes a motor and a gearbox. The motor is connected to the input shaft of the gearbox, and the drive wheel 71 is connected to the output shaft of the gearbox. Based on this design, the motor speed can be reduced to the required speed range via the gearbox, thereby reasonably controlling the production cycle.

[0056] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A winding core recycling device for collecting wound cores, the wound cores comprising a diaphragm, a positive electrode plate, and a negative electrode plate, characterized in that, The core recycling device includes a base frame and a core clamping mechanism, a first guide rod, a second guide rod, a diaphragm winding mechanism, and a driving mechanism fixedly installed on the base frame. The base frame is provided with a first discharge port for the positive electrode sheet to fall and a second discharge port for the negative electrode sheet to fall. The line connecting the core clamping mechanism and the diaphragm winding mechanism intersects with the line connecting the first guide rod and the second guide rod. The driving mechanism is linked to the diaphragm winding mechanism.

2. The core recycling device according to claim 1, characterized in that, The line connecting the core clamping mechanism to the first guide rod and the line connecting the core clamping mechanism to the second guide rod are equal; and / or, The line connecting the core clamping mechanism and the diaphragm winding mechanism is perpendicular to the line connecting the first guide rod and the second guide rod.

3. The core recycling device according to claim 1, characterized in that, The core clamping mechanism includes a fixed rod fixedly installed on the base frame, a rotating shaft rotatably installed on the fixed rod, and a plurality of elastic elements radially spaced on the rotating shaft. The horizontal distance between the elastic elements and the fixed rod gradually increases from top to bottom, and the elastic elements undergo elastic deformation toward the rotating shaft under stress.

4. The core recycling device according to claim 3, characterized in that, The first end of the elastic element is fixedly installed on the upper end of the rotating shaft, and the second end of the elastic element is suspended on the side of the rotating shaft, with the first end located above the second end.

5. The core recycling device according to claim 3, characterized in that, The elastic element includes a third end located between the first end and the second end, and the horizontal distance between the third end and the fixed rod is greater than the horizontal distance between the second end and the fixed rod.

6. The core recycling device according to claim 1, characterized in that, The diaphragm winding mechanism includes a winding rod, a connecting rod connected to the winding rod, and a bearing sleeved on the connecting rod. The connecting rod passes through the base frame and is linked to the drive mechanism. The bearing is disposed in the base frame.

7. The core recycling device according to claim 6, characterized in that, The winding rods are spaced in multiples.

8. The core recycling device according to claim 1, characterized in that, The drive mechanism includes a drive wheel, a driven wheel, a synchronous belt that links the drive wheel and the driven wheel, and a rotary drive assembly mounted with the drive wheel. The driven wheel is mounted with a diaphragm winding mechanism.

9. The core recycling device according to claim 8, characterized in that, The rotary drive assembly includes a motor and a gearbox. The motor is connected to the input shaft of the gearbox, and the drive wheel is connected to the output shaft of the gearbox.

10. The core recycling device according to claim 1, characterized in that, The base frame includes a platform and at least three support rods disposed at the corners of the platform. At least one of the support rods is not collinear with the other support rods. The first and second material discharge ports are disposed on the platform. The base frame also includes a partition disposed between the first and second material discharge ports.

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