Cutting equipment
By combining a feeding device and a cutting device, the problem of dust generated by the crushing of traditional electrode sheets is solved, achieving efficient and safe electrode sheet cutting, and reducing equipment costs and safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional methods of mechanically crushing electrode sheets generate a large amount of dust, leading to increased costs and safety risks.
The device employs a feeding device and a cutting device. The feeding device compresses and guides the electrode sheet, and the cutting device, which moves in a reciprocating motion, cuts the electrode sheet, thus avoiding the generation of a large amount of debris and dust.
Reduce dust generation, lower equipment costs, avoid dust explosion safety hazards, and improve cutting accuracy and production efficiency.
Smart Images
Figure CN224027731U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery recycling technology, and in particular to a cutting device. Background Technology
[0002] Electrode recycling is a promising field. Valuable materials in electrode sheets can be effectively recovered through various technical means such as physical, chemical, and biological methods.
[0003] The physical method is a way to recycle waste electrode sheets using physical means. It mainly utilizes physical processes such as mechanical crushing, screening, and sorting to separate different materials from the electrode sheets, thereby achieving resource recovery and reuse. The physical method has advantages such as simple process, low cost, and environmental friendliness, and is usually used as a pretreatment method to provide raw materials for subsequent chemical or biological recycling methods.
[0004] However, in the traditional mechanical crushing process of electrode sheets, a shredder is usually used to crush the electrode sheets. This method uses a rapid rotating meshing mechanism of roller gear cutters to crush the electrode sheets. This crushing method generates a large amount of dust, requiring the configuration of dust treatment equipment, which not only increases costs but also poses a safety risk of dust explosion. Utility Model Content
[0005] This application discloses a cutting device that can compress and guide the electrode sheet through a feeding device, and then cut the electrode sheet through a reciprocating translational motion of a cutter, thereby completing the mechanical crushing of the electrode sheet. This can avoid generating a large amount of debris and particles and reduce dust.
[0006] To achieve the above objectives, a cutting device is provided according to an embodiment of this application, comprising: a material guiding device, the material guiding device including a driving roller and a driven roller, the driving roller and the driven roller being disposed opposite to each other in a first direction and capable of rotating along their respective axial directions, a material feeding channel being formed between the driving roller and the driven roller, the material feeding channel being used to compress the electrode sheet and guide the electrode sheet to move; and a cutting device, the cutting device including: a cutter, the cutter being capable of reciprocating translational movement in the first direction to cut the electrode sheet;
[0007] The material guiding device and the material cutting device are arranged sequentially in a second direction, and the first direction is perpendicular to the second direction.
[0008] As an optional implementation, the material guiding device further includes: two scrapers, one of which is disposed on the side of the driving roller near the driven roller, for guiding the electrode sheet to move downward in the second direction to prevent the electrode sheet from winding around the driving roller; the other scraper is disposed on the side of the driven roller near the driving roller, for guiding the electrode sheet to move downward in the second direction to prevent the electrode sheet from winding around the driven roller.
[0009] As an optional implementation, the circumferential surface of the drive roller has a plurality of first grooves spaced apart along its axial direction and surrounding its circumferential surface; the circumferential surface of the driven roller has a plurality of second grooves spaced apart along its axial direction and surrounding its circumferential surface; the scraper has a plurality of through holes spaced apart along the axial direction of the drive roller; a partition is formed between each pair of adjacent through holes on the scraper; the partition of the scraper corresponding to the drive roller is embedded in the first groove; and the partition of the scraper corresponding to the driven roller is embedded in the second groove.
[0010] As an optional implementation, the scraper extends toward the cutting device and has a guide portion for guiding the electrode sheet on the scraper surface to the cutting device.
[0011] As an optional implementation, a mounting bracket is provided, wherein the driving roller is fixedly mounted on the mounting bracket, and the driven roller is movably mounted on the mounting bracket, and the driven roller can move closer to or further away from the driving roller; a locking structure is provided between the mounting bracket and the driven roller, and when the driven roller is adjusted to a preset position, the locking structure can lock the driven roller to the mounting bracket.
[0012] As an optional implementation, the cutting device further includes: a baffle, the baffle and the cutter being disposed opposite to each other in the first direction, the baffle being close to the drive roller and the cutter being close to the driven roller, the cutter being capable of reciprocating translational motions toward and away from the baffle.
[0013] As an optional implementation, the cutter includes a blade body and a cutting edge, the cutting edge protruding from the end face of the blade body near the baffle; the baffle has a cutting groove, the baffle groove having a first groove segment near the opening and a second groove segment away from the opening, the first groove segment and the second groove segment communicating with each other and forming a stepped surface, the stepped surface abutting against the blade body, the stepped surface corresponding to the end face of the blade body along the moving direction of the cutter, and the second groove segment corresponding to the cutting edge, the length of the cutting edge protruding from the blade body.
[0014] As an optional implementation, a cutter guard is provided on the outer periphery of the cutting device, and the cutter reciprocates within the cutter guard.
[0015] As an optional implementation, a baffle plate is disposed above the material guiding device to guide the electrode sheet into the material feeding channel.
[0016] As an optional implementation, the chassis is provided with a water collection trough; a boss is disposed in the water collection trough, and a first water passage hole is formed on the upper surface of the boss, which communicates with the water collection trough; the boss includes a placement area and a guide area, the placement area is located below the cutting device, and the guide area is connected to the placement area and extends to the outside of the chassis; a collection cart is movable on the boss, and when the collection cart is located in the placement area, the inlet of the collection cart corresponds to the cutting outlet of the cutting device;
[0017] The bottom of the aggregate cart has a second water passage.
[0018] Compared with the prior art, the beneficial effects of this application are:
[0019] The cutting equipment provided in this application embodiment can compress and guide the electrode sheet through the material passage formed by the gap between the active roller and the driven roller of the guiding device, and then cut the electrode sheet by the reciprocating translational cutting blade, so that the electrode sheet becomes a smaller material. Compared with the prior art, which uses the rapid rotation and meshing of roller gears and blades to crush the electrode sheet, it does not generate a large amount of dust. It can not only save dust treatment equipment and reduce equipment costs, but also avoid the safety hazard of dust explosion caused by the accumulation of a large amount of dust. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the cutting device disclosed in the embodiments of this application;
[0022] Figure 2 This is a schematic diagram of the cutting device disclosed in the embodiments of this application with the baffle removed;
[0023] Figure 3 This is a schematic diagram of the material guiding device disclosed in the embodiments of this application;
[0024] Figure 4 This is a schematic diagram of the cooperative structure of the active roller and scraper disclosed in the embodiments of this application;
[0025] Figure 5 This is a schematic diagram of the scraper structure disclosed in the embodiments of this application;
[0026] Figure 6 This is a schematic diagram of the material cutting device disclosed in the embodiments of this application;
[0027] Figure 7 This is a schematic diagram of the mating structure of the cutter and cutter groove disclosed in the embodiments of this application;
[0028] Figure 8 This is a structural schematic diagram of the chassis, boss, and aggregate cart disclosed in the embodiments of this application.
[0029] Explanation of reference numerals in the attached figures:
[0030] 100-Guiding device; 11-Driven roller; 111-First groove; 12-Driven roller; 121-Second groove; 13-Scraper; 131-Through hole; 132-Partition plate; 133-Guiding part; 14-Mounting bracket; 15-Roller power unit; 200-Cutting device; 21-Cutter; 211-Cutter body; 212-Cutter edge; 22-Baffle plate; 221-Cutter groove; 2211-First groove section; 2212-Second groove section; 23-Cutting knife power unit; 300-Cutter protective cover; 400-Baffle plate; 500-Chassis; 51-Water collection trough; 600-Boss; 61-First water passage hole; 700-Collection cart; 71-Second water passage hole; a-First direction; b-Second direction. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] In this application, the terms "upper," "lower," "top," "bottom," "inner," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0033] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0034] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0035] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0036] The lithium electrode is the core component of a lithium battery, mainly divided into the positive electrode and the negative electrode. The positive electrode is usually made of lithium compounds, such as lithium iron phosphate and lithium cobalt oxide, coated on aluminum foil. The positive electrode stores and releases lithium ions during the battery's charging and discharging process. The negative electrode is usually made of graphite or other carbon materials coated on copper foil. The main function of the negative electrode is to participate in the insertion and extraction reactions of lithium ions during charging and discharging, thereby achieving the storage and release of electrical energy.
[0037] With the increasing global demand for clean energy, the market size of new energy vehicles, energy storage systems, and various consumer electronics products continues to expand. As a core energy storage device, lithium batteries are experiencing rapid growth in both production and usage. This has led to a continuous increase in the number of waste lithium batteries, creating a huge market demand for electrode recycling and reuse. Furthermore, rare metal resources such as lithium, cobalt, and nickel are limited; recycling and reuse can effectively alleviate resource shortages and reduce environmental impact. Recycled electrode materials can be reused in lithium battery production or other fields, reducing the procurement costs of virgin materials and thus improving the economic benefits and market competitiveness of recycling companies to some extent.
[0038] Electrode recycling can be achieved through various techniques, including physical, chemical, and biological methods. Physical methods involve using physical means to recycle waste electrode sheets. They primarily utilize mechanical crushing, screening, and sorting processes to separate different materials within the electrode sheets, thereby achieving resource recovery and reuse. Physical methods offer advantages such as simplicity, low cost, and environmental friendliness, and are typically used as a pretreatment method to provide raw materials for subsequent chemical or biological recycling processes.
[0039] Physical methods have significant application value in electrode recycling. Their simplicity, low cost, and environmental friendliness make them an ideal pretreatment method. Physical methods can efficiently recover valuable materials from electrode sheets, providing high-quality raw materials for subsequent chemical or biological recycling processes. With continuous technological advancements and equipment optimization, the application prospects of physical methods in electrode recycling will become even broader.
[0040] The physical recycling process for electrode sheets typically includes the following steps: 1. Pre-treatment, including discharge treatment, disassembly, and sorting. Discharge treatment ensures that safety accidents such as short circuits or explosions will not occur during subsequent recycling. Disassembling the lithium battery separates components such as the positive electrode, negative electrode, separator, and electrolyte. The disassembly process needs to be carried out in a dry, anhydrous environment to prevent the electrolyte from reacting with water and producing harmful gases. Finally, the disassembled electrode sheets are sorted into positive and negative electrodes for subsequent processing. 2. Crushing, where the electrode sheets are crushed into smaller pieces using mechanical equipment. 3. Sieving, where the crushed electrode sheets are sieved through a vibrating screen to separate materials of different particle sizes for subsequent sorting and recycling. 4. Sorting, including: Gravity separation: using the density difference of different materials, a gravity separator separates aluminum foil, copper foil, and black powder; Magnetic separation: using a magnetic separator to separate magnetic materials from non-magnetic materials; Electrostatic separation: using the conductivity difference of different materials, an electrostatic separator separates metal foil and black powder; Flotation: using the surface property difference of different materials, a flotation machine separates black powder and metal foil. 5. Collection and packaging: Collection: Collecting the separated materials, such as aluminum foil, copper foil, and black powder, to ensure material purity and recovery rate; Packaging: Packaging the collected materials for transportation and storage. Packaging materials typically use moisture-proof and oxidation-resistant materials to protect the quality of the recycled materials.
[0041] In existing technologies, electrode sheets are typically crushed using a shredder. This method employs a rapid rotating meshing mechanism of roller gear cutters to break and separate the electrode sheets. This crushing method generates a large amount of dust, requiring dust control equipment, which not only increases costs but also poses a safety risk of dust explosion.
[0042] Based on this, this application provides a cutting device that can compress and guide the electrode sheet to move through a feeding device, and then cut the electrode sheet through a reciprocating translational motion of a cutter, thereby completing the mechanical crushing of the electrode sheet. This can avoid generating a large amount of debris and particles and reduce dust.
[0043] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.
[0044] Please see Figure 1 , Figure 1 This is a schematic diagram of the cutting device disclosed in an embodiment of this application. The device, used for crushing and recycling electrode sheets, includes: a material guiding device 100, comprising a drive roller 11 and a driven roller 12, which are arranged opposite to each other in a first direction a and are capable of rotating along their respective axial directions. A material feeding channel is formed between the drive roller 11 and the driven roller 12, which is used to compress the electrode sheets and guide their movement; and a cutting device 200, comprising a cutter 21 capable of reciprocating translational motion in the first direction a to cut the electrode sheets. The material guiding device and the cutting device are arranged sequentially in a second direction b, where the first direction a is perpendicular to the second direction b.
[0045] Specifically, such as Figure 2 and Figure 3 As shown, Figure 2 This is a schematic diagram of the cutting equipment disclosed in this application with the baffle removed. Figure 3 This is a schematic diagram of the material guiding device disclosed in the embodiments of this application. The active roller 11 can be connected to the power component for transmission and rotates under the drive of the power component. When the active roller 11 rotates, it can drive the electrode sheet to move and drive the driven roller 12 to rotate together, so that the electrode sheet between the active roller 11 and the driven roller 12 can move in the material feeding channel. The material feeding channel formed by the gap between the active roller 11 and the driven roller 12 compresses and guides the electrode sheet, improving the cutting accuracy. Through the compression and guidance of the material feeding channel, the electrode sheet can have a more uniform thickness and a more stable moving speed when entering the cutting device 200, thereby improving the cutting accuracy and consistency of the cutter 21, making the size of the cut electrode sheet controllable. Moreover, the setting of the material feeding channel allows the electrode sheet to be effectively compressed and guided before cutting, reducing the impact and vibration that may be generated during direct cutting, thereby protecting the cutter 21, extending the service life of the cutter 21, and also enabling the electrode sheet to have continuous and stable moving characteristics, avoiding production interruptions caused by unstable material feeding, and improving the production efficiency of the entire cutting equipment.
[0046] like Figure 1 As shown, the first direction 'a' can be horizontal, and the second direction 'b' can be vertical.
[0047] like Figure 6 As shown, Figure 6 This is a schematic diagram of the material cutting device disclosed in the embodiments of this application. The cutter 21 can be driven by a cutting blade power device, which may include a cylinder and a transmission mechanism. The cylinder is connected to the cutter via the transmission mechanism. The cylinder can drive the cutter 21 to reciprocate and translate to cut the electrode sheet, so that the electrode sheet is cut into smaller pieces, achieving the effect of crushing the electrode sheet. Furthermore, by controlling the rotation speed of the drive roller, the size of the cut electrode sheet material can also be controlled. Compared with the prior art of crushing by rapidly rotating and meshing roller gears, the cutting action of the cutter 21 can avoid generating a large amount of dust, eliminating the need for special dust treatment equipment, significantly reducing equipment costs, and preventing the accumulation of large amounts of dust, thus avoiding the safety hazard of dust explosion.
[0048] According to the cutting equipment of this utility model embodiment, the electrode sheet can be compressed and guided through the material passage formed by the gap between the active roller 11 and the driven roller 12 of the guiding device 100, and then the electrode sheet is cut by the reciprocating translational cutter 21, so that the electrode sheet is cut into smaller materials. Compared with the prior art, which uses the rapid rotation and meshing of roller gear cutter to crush the electrode sheet, it does not generate a large amount of dust. It can not only save dust treatment equipment and reduce equipment costs, but also avoid the safety hazard of dust explosion caused by the accumulation of a large amount of dust.
[0049] In some embodiments, the rotational speed of the drive roller 11 can be adjusted.
[0050] The drive roller 11 can be driven by a roller power unit, which includes a motor and a transmission mechanism. The motor is connected to the cutter via the transmission mechanism. By controlling the motor speed, the rotational speed of the drive roller 11 can be controlled, enabling the drive roller 11 to rotate at a uniform speed. By controlling the rotational speed of the drive roller 11, the rotational speed of the drive roller 11 can be changed, thereby making the movement speed of the electrode sheet controllable and controlling the size of the cut material. Moreover, by controlling the uniform rotation of the drive roller 11, the electrode sheet can move at a uniform or near-uniform speed, making the size of each cut material similar, thus achieving controllable size of the cut material fragments.
[0051] In some embodiments, the feeding device 100 further includes two scrapers 13. One scraper 13 is disposed on the side of the driving roller 11 near the driven roller 12, for guiding the electrode sheet to move downward in the second direction to prevent the electrode sheet from winding onto the driving roller 11. The other scraper 13 is disposed on the side of the driven roller 12 near the driving roller 11, for guiding the electrode sheet to move downward in the second direction to prevent the electrode sheet from winding onto the driven roller 12.
[0052] Specifically, such as Figure 4 and Figure 5 As shown, Figure 4 This is a schematic diagram of the cooperative structure of the active roller and scraper disclosed in an embodiment of this application. Figure 5 This is a schematic diagram of the scraper structure disclosed in the embodiments of this application. The scraper 13 disposed on the drive roller 11 can guide the electrode sheet to move downward in the second direction, and can prevent the electrode sheet from winding around the drive roller 11. The scraper 13 disposed on the driven roller 12 can guide the electrode sheet to move downward in the second direction, so as to prevent the electrode sheet from winding around the driven roller 12. The two scrapers 13 cooperate to ensure that the electrode sheet enters the cutting device 200 correctly and is cut by the cutter 21.
[0053] In some embodiments, such as Figure 5 As shown, the circumferential surface of the drive roller 11 has a plurality of first grooves 111 spaced apart along its axial direction and surrounding its circumferential surface; the circumferential surface of the driven roller 12 has a plurality of second grooves 121 spaced apart along its axial direction and surrounding its circumferential surface; the scraper 13 has a plurality of through holes 131 spaced apart along the axial direction of the drive roller 11; a partition 132 is formed between each pair of adjacent through holes 131 of the scraper 13; the partition 132 of the scraper 13 corresponding to the drive roller 11 is embedded in the first groove 111; and the partition 132 of the scraper 13 corresponding to the driven roller 12 is embedded in the second groove 121.
[0054] Specifically, the scraper 13 on the drive roller 11 is embedded in the drive roller 11 through the structural cooperation of the partition plate 132 and the first groove 111. The scraper 13 on the driven roller 12 is embedded in the driven roller 12 through the structural cooperation of the partition plate 132 and the second groove 121. Through this embedded cooperation structure, the scraper 13 can effectively scrape off the electrode sheets adhering to the surface of the drive roller 11 and the driven roller 12, avoiding the electrode sheets from being constantly adhered to the surface of the drive roller 11 or the driven roller 12, which would affect the normal operation of the material guiding device 100. Moreover, the embedded structure allows the scraper 13 to scrape off the adhered electrode sheets without being in complete contact with the roller body when cooperating with the drive roller 11 and the driven roller 12, thus avoiding the scraper 13 affecting the service life of the drive roller 11 and the driven roller 12.
[0055] In some embodiments, such as Figure 4 and Figure 5 As shown, the scraper 13 extends toward the cutting device 200 and has a guide portion 133, which is used to guide the electrode sheet on the surface of the scraper 13 to the cutting device 200.
[0056] Specifically, the guide section 133 can guide the electrode sheet scraped off from the roller surface of the drive roller 11 and the driven roller 12 by the scraper 13. By guiding the scraped electrode sheet, the electrode sheet can be correctly entered into the cutting device 200, avoiding the electrode sheet from being misaligned and affecting the cutting operation of the cutter 21.
[0057] In some embodiments, such as Figure 3 As shown, the cutting device also includes a mounting bracket 14 and a locking structure. The driving roller 11 is fixedly mounted on the mounting bracket 14, and the driven roller 12 is movably mounted on the mounting bracket 14, allowing the driven roller 12 to move closer to or further away from the driving roller 11. The locking structure is located between the mounting bracket 14 and the driven roller 12. When the driven roller 12 is adjusted to a preset position, the locking structure can lock the driven roller 12 to the mounting bracket 14.
[0058] Specifically, the mounting bracket 14 can be two opposing strip-shaped frames. A pair of opposing and fixed blocks can be set inside the mounting bracket 14 to provide mounting fulcrums for the drive roller 11, allowing the drive roller 11 to rotate between the blocks. A pair of opposing sliders that can slide back and forth along the strip-shaped frames are also set to provide mounting fulcrums for the driven roller 12, allowing the driven roller 12 to rotate between the sliders. The driven roller 12 can also be moved by moving the sliders, allowing the driven roller 12 to move closer to or away from the drive roller 11.
[0059] The locking structure can be a bolt lock. A strip hole can be provided on the mounting bracket 14, with the extension direction of the strip hole being the same as the translation direction of the driven roller 12. The bolt is then passed through the strip hole and screwed onto the slider. When it is necessary to move the driven roller 12, the bolt can be loosened, and the slider can be slid to adjust the position of the driven roller 12 to accommodate electrode sheets of different thicknesses. After the adjustment is completed, the bolt can be tightened to secure the slider to the strip frame, preventing the slider from sliding and thus limiting the displacement of the driven roller 12.
[0060] The locking structure can also be a snap-lock, in which the slider cannot move when the snap-lock is locked, and the slider can move when the snap-lock is unlocked to adjust the position of the driven roller 12.
[0061] In some embodiments, such as Figure 6 As shown, the cutting device 200 includes a baffle 22, which is disposed opposite to the cutter 21 in the first direction a. The baffle 22 is close to the drive roller 11, and the cutter 21 is close to the driven roller 12. The cutter 21 can perform reciprocating translational movements that approach and move away from the baffle 22.
[0062] Specifically, the baffle 22 can cooperate with the cutter 21 to protect the cutter 21, reduce the wear of the cutter 21, extend the service life of the cutter 21, reduce the maintenance cost of the equipment, make the whole cutting process more stable, reduce equipment vibration and noise caused by the movement of the electrode sheet, and improve the operational stability of the equipment.
[0063] In some embodiments, such as Figure 7 As shown, Figure 7 This is a schematic diagram of the mating structure of the cutter and the cutter groove 221 disclosed in an embodiment of this application. The cutter 21 includes a blade body 211 and a cutting edge 212, with the cutting edge 212 protruding from the end face of the blade body 211 near the baffle 22;
[0064] The baffle 22 has a cutting groove 221. The groove of the baffle 22 has a first groove segment 2211 near the opening and a second groove segment 2212 away from the opening. The first groove segment 2211 and the second groove segment 2212 are connected to each other and form a stepped surface. The stepped surface is used to abut against the blade body 211. Along the moving direction of the cutter 21, the stepped surface corresponds to the end face of the blade body 211, and the second groove segment 2212 corresponds to the blade 212. The depth of the second groove segment 2212 is greater than the length of the blade 212 protruding from the blade body 211.
[0065] Specifically, the blade 212 is located at one end or edge of the blade body 211. It is the key area for the cutter 21 to function, while the blade body 211 supports, connects, and fixes the blade 212, providing a stable base for it. The blade 212 can be straight.
[0066] The cutting groove 221, through its progressive groove structure of the first groove segment 2211 and the second groove segment 2212, can protect the blade 212 of the cutter 21. When the cutter 21 contacts the baffle 22, the blade body 211 rests on the stepped surface, while the blade 212 extends into the second groove segment 2212. The depth of the second groove segment 2212 is greater than the length of the blade 212 protruding from the blade body 211, thus preventing the blade 212 from contacting the bottom of the cutting groove 221. This prevents the blade 212 from directly contacting the baffle 22, allowing the baffle 22 to stop the cutter 21 from continuing to advance while avoiding hard contact between the blade 212 and the baffle 22, which could cause the blade 212 to chip and affect the service life of the cutter 21.
[0067] In some embodiments, such as Figure 1 As shown, the cutting equipment also includes a cutter guard 300, which is disposed on the outer periphery of the cutting device 200, and the cutter 21 reciprocates inside the cutter guard 300.
[0068] Specifically, the cutter guard 300 covers the translation range of the cutter 21. When the cutter 21 is working, it can isolate the cutter 21 from the external environment. This not only prevents foreign objects from entering the cutting device 200 and affecting its normal operation, but also prevents workers from putting their hands into the cutting device 200 and getting cut. It can play a protective role for workers.
[0069] In some embodiments, such as Figure 1 As shown, the cutting equipment also includes a baffle plate 400, which is disposed above the material guiding device 100 and is used to guide the electrode sheet to the material feeding channel.
[0070] Specifically, the baffle plate 400 can be a semi-enclosed plate shape that is wider at the top and narrower at the bottom. When the electrode sheet from the previous process is conveyed to the cutting equipment proposed in this application embodiment, the baffle plate 400 can intercept the electrode sheet and then guide the intercepted electrode sheet into the material guiding device 100. Even if the electrode sheet enters the material feeding channel, the manual feeding process can be eliminated, reducing manpower requirements and improving production efficiency.
[0071] Multiple perforations can be provided on the baffle plate 400 to prevent the electrode sheet from passing through, which can reduce the weight of the baffle plate 400 and facilitate the installation and removal of the baffle plate 400.
[0072] In some embodiments, such as Figure 1 and Figure 8 As shown, Figure 8 This is a schematic diagram of the chassis, boss, and material collection cart disclosed in the embodiments of this application. The cutting equipment also includes a chassis 500, a boss 600, and a material collection cart 700. The chassis 500 is provided with a water collection tank 51. The boss 600 is disposed in the water collection tank 51, and a first water passage hole 61 is formed on the upper surface of the boss 600, which communicates with the water collection tank 51. The boss 600 includes a placement area and a guide area. The placement area is located below the cutting device 200, and the guide area is connected to the placement area and extends to the outside of the chassis 500. The material collection cart 700 can move on the boss 600. When the material collection cart 700 is located in the placement area, the inlet of the material collection cart 700 can correspond to the cutting outlet of the cutting device 200. The bottom of the material collection cart 700 has a second water passage hole 71.
[0073] Specifically, the chassis 500 can be a box with an open top. The internal space of the box forms a water collection tank 51 for collecting wastewater. A boss 600 is set in the water collection tank 51. The height of the boss 600 can be the same as the height of the side wall of the box. The collection cart 700 can travel on the boss 600. When it is necessary to collect shredded electrode pieces, the collection cart 700 can be pushed to the placement area to collect the lithium electrode fragments cut by the cutting device. When it is necessary to transfer the collected lithium electrode fragments, the collection cart 700 can be moved from the guide area so that the collection cart 700 can move smoothly to the outside of the chassis 500 without being affected by the tank wall of the water collection tank 51 of the chassis 500.
[0074] The material cart can be a box structure with an open top, consisting of multiple plates. Multiple small holes are opened at the bottom of the material cart to prevent lithium electrode fragments from leaking out, but to allow drainage, forming a second water passage 71.
[0075] The material cart can also be a frame structure composed of multiple rods, with a woven bag inside, the opening of the woven bag facing upwards, collecting lithium electrode fragments through the woven bag, and forming a second water passage 71 through the mesh of the woven bag to allow waste liquid to be discharged.
[0076] The first water passage hole 61 provided on the boss 600 can drain the liquid leaking from the material cart into the water collection tank 51, which can prevent the liquid leaking from the material cart from overflowing directly from the boss 600 to the chassis 500 and polluting the environment where the cutting equipment is located.
[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A cutting apparatus applied to breaking and recycling of electrode pieces, characterized by, Comprising: a material guiding device (100) comprising a driving roller (11) and a driven roller (12), the driving roller (11) and the driven roller (12) are oppositely arranged in a first direction (a) and can rotate in respective axial directions, a material passing channel is formed between the driving roller (11) and the driven roller (12) for compressing and guiding the movement of the electrode sheet; a material cutting device (200) comprising a cutter (21) capable of reciprocating translation in the first direction (a) to cut the electrode sheet. The material guiding device and the material cutting device are sequentially arranged in a second direction (b), and the first direction (a) is perpendicular to the second direction (b).
2. The cutting device according to claim 1, wherein the rotating speed of the driving roller (11) is adjustable. The material guiding device (100) further comprises:
3. The cutting apparatus of claim 1, wherein, two scrapers (13), one of the scrapers (13) is arranged on one side of the driving roller (11) close to the driven roller (12) for guiding the electrode sheet to move downward along the second direction (b) to prevent the electrode sheet from winding on the driving roller (11); the other scraper (13) is arranged on one side of the driven roller (12) close to the driving roller (11) for guiding the electrode sheet to move downward along the second direction (b) to prevent the electrode sheet from winding on the driven roller (12).
4. The cutting device according to claim 3, wherein the circumferential surface of the driving roller (11) has a plurality of first grooves (111) arranged axially and around the circumferential surface, and the circumferential surface of the driven roller (12) has a plurality of second grooves (121) arranged axially and around the circumferential surface; The scraper (13) has a plurality of through holes (131) arranged axially on the driving roller (11), and a partition plate (132) is formed between every two adjacent through holes (131), the partition plate (132) of the scraper (13) corresponding to the driving roller (11) is embedded in the first groove (111), and the partition plate (132) of the scraper (13) corresponding to the driven roller (12) is embedded in the second groove (121).
5. The cutting device according to claim 4, wherein the scraper (13) extends towards the material cutting device (200) to form a material guiding portion (133) for guiding the electrode sheet on the surface of the scraper (13) to the material cutting device (200).
6. The cutting device according to claim 1, wherein a mounting bracket (14) is provided, the driving roller (11) is fixedly arranged on the mounting bracket (14), and the driven roller (12) is movably arranged on the mounting bracket (14), and the driven roller (12) can move close to or away from the driving roller (11). A locking structure is arranged between the mounting bracket (14) and the driven roller (12), and can lock the driven roller (12) and the mounting bracket (14) when the driven roller (12) is adjusted to a preset position.
7. The cutting apparatus according to any one of claims 1 to 6, wherein The cutting device (200) further comprises: A baffle (22) is arranged opposite to the cutting knife (21) in the first direction (a), and is close to the driving roller (11), and the cutting knife (21) is close to the driven roller (12), and the cutting knife (21) can make reciprocating translation movement close to and away from the baffle (22).
8. The cutting device according to claim 7, wherein, The cutting knife (21) comprises a blade body and a blade edge, and the blade edge protrudes from an end face of the blade body close to the baffle (22); The baffle (22) has a cutting knife groove (221), and the cutting knife groove (221) has a first groove section (2211) close to an opening and a second groove section (2212) away from the opening, the first groove section (2211) and the second groove section (2212) are in communication with each other and form a stepped face, the stepped face is used for abutting against the blade body (211), the stepped face corresponds to an end face of the blade body (211) in the moving direction of the cutting knife (21), and the second groove section (2212) corresponds to the blade edge (212), and the depth of the second groove section (2212) is greater than the length of the blade edge (212) protruding from the blade body (211).
9. The cutting apparatus of claim 7, wherein, The cutting device further comprises: A cutting knife protective cover (300) is arranged on the outer periphery of the cutting device (200), and the cutting knife (21) reciprocatingly translates inside the cutting knife protective cover (300).
10. The cutting apparatus of claim 1, wherein, The cutting device further comprises: A material blocking plate (400) is arranged above the material guiding device (100) and is used for guiding the electrode sheet to the material passing channel.
11. The cutting apparatus of claim 1, wherein, The cutting device further comprises: A chassis (500) is provided with a water collecting groove (51); A boss (600) is arranged in the water collecting groove (51), an upper surface of the boss (600) is provided with a first water passing hole (61), the first water passing hole (61) is in communication with the water collecting groove (51), the boss (600) comprises a placing area and a guiding area, the placing area is below the cutting device (200), the guiding area is connected with the placing area and extends to the outside of the chassis (500); A material collecting vehicle (700) can move on the boss (600), and when the material collecting vehicle (700) is located in the placing area, a feeding port of the material collecting vehicle (700) can correspond to a cutting material outlet of the cutting device (200); The bottom of the material collecting vehicle (700) is provided with a second water passing hole (71).