Guide assembly, feeding mechanism, pole piece conveying system and hot compounding lamination machine

Abstract

The application discloses a guide assembly, a feeding mechanism, a pole piece conveying system and a hot compound lamination machine. The guide assembly comprises a frame body and a guide plate. The frame body forms an opening. The guide plate is installed on the frame body on one side of the opening. The guide plate partially extends out of the frame body. A ball structure is arranged on the side surface of the guide plate close to the opening. The ball structure partially protrudes from the surface of the guide plate and is in rolling connection with the guide plate. The ball structure reduces the friction between the pole piece and the guide plate, improves the transmission speed of the pole piece, and reduces the probability of the occurrence of the pole piece conveying jamming phenomenon caused by the large resistance between the pole piece and the guide plate.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to a guiding component, a feeding mechanism, an electrode conveying system, and a thermal composite stacking machine. Background Technology

[0002] The electrode stacking and conveying system comprises a cutting module, a dust removal module, a deviation correction module, and an accelerating roller feeding module arranged sequentially along the production line. The cutting module precisely cuts the electrodes; the dust removal module removes dust and impurities from the electrode surface to ensure cleanliness; the deviation correction module adjusts the electrode position to ensure it runs on the correct track; and the accelerating roller feeding module increases production efficiency by increasing the electrode conveying speed. However, during the transfer between these modules, the electrodes often deform, causing friction or snagging between the electrodes and the guide rollers or baffles of some modules. This leads to electrode blockage, reduced battery production efficiency, increased production costs, and equipment wear and malfunctions. Utility Model Content

[0003] This application provides a guiding component, a feeding mechanism, an electrode conveying system, and a thermal composite stacking machine, which improves the smoothness of electrode conveying and at least partially solves the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a guiding component is provided, comprising:

[0005] The frame forms an opening;

[0006] A guide plate is installed on the frame on one side of the opening. The guide plate extends out of the frame. A ball bearing structure is provided on the side of the guide plate near the opening. The ball bearing structure protrudes from the surface of the guide plate. The guide plate and the ball bearing structure are in a rolling connection.

[0007] In some embodiments, the height of the ball bearing structure protruding from the surface of the guide plate is h, wherein 0.2mm ≤ h ≤ 0.3mm. The reasonable range of the height of the ball bearing structure protruding from the surface of the guide plate ensures effective contact between the ball bearing and the electrode, preventing the electrode from becoming stuck due to excessive friction. It also avoids situations where excessive protrusion leads to severe shaking during electrode transport, or insufficient contact between the ball bearing and the electrode due to insufficient protrusion, thus failing to perform its rolling guiding function.

[0008] In some embodiments, the guide plate includes a plurality of sub-plates arranged at intervals along a first direction, and each sub-plate has a ball bearing structure on its surface. The ball bearing structure on the surface of each sub-plate ensures that the coefficient of friction on each sub-plate surface tends to be consistent, reducing the probability of the electrode shifting off the transmission path due to large local friction forces, causing jamming.

[0009] In some embodiments, the sub-plate includes a horizontal portion and an inclined portion. One end of the horizontal portion is close to the frame and connected to the frame on the side of the opening. The other end of the horizontal portion extends out of the frame and connects to the inclined portion. The inclined portion is inclined away from the opening. The ball bearing structure is provided on the side of the horizontal portion and / or the inclined portion. The horizontal portion provides a horizontal conveying base for electrode conveying, and the inclined portion, inclined away from the opening, can smoothly guide the electrode into the horizontal portion and avoid the electrode getting stuck during transition.

[0010] In some embodiments, the angle formed between the inclined portion and the plane containing the horizontal portion is θ, where 29°≤θ≤31°. This avoids the inclined portion being too gentle due to an excessively small angle, which could cause the electrode sheets to accumulate and stagnate at the junction of the horizontal and inclined portions; it also prevents the inclined portion from being too steep due to an excessively large angle, which could cause the electrode sheets to bounce, deviate, or experience edge wear due to accelerated impact from gravity when turning, thus ensuring a smooth and uninterrupted transition from horizontal transport to inclined guidance.

[0011] In some embodiments, a chromium metal plating layer is formed on one side of the inclined portion near the opening. The chromium metal plating layer has a high surface finish, reducing the frictional resistance between the electrode and the contact surface of the inclined portion, forming a "double drag reduction" effect with the ball bearing structure, protecting the electrode and reducing the occurrence of electrode scratches.

[0012] In some embodiments, a vibrator is further included, mounted on the lower surface of one of the sub-plates, the upper surface of which is adapted to contact the tabs of the electrode sheet. The vibrator is positioned on the sub-plate corresponding to the tabs, assisting the tabs in smoothly entering the feeding mechanism and ensuring smooth conveying of the tabs.

[0013] In a second aspect, a feeding mechanism is also provided, comprising the guiding component described in any one of the above.

[0014] In some embodiments, the system further includes a first frame. One side of the first frame has a first electrode inlet, a diaphragm inlet, and a second electrode inlet. The diaphragm inlet is located between the first electrode inlet and the second electrode inlet. A guide component is provided at the second electrode inlet of the first frame. The frame of the guide component is mounted on the first frame surrounding the second electrode inlet. The second electrode inlet also has one of the guide components, with its frame mounted on the first frame. The feeding mechanism integrates multiple guide components through the first frame, resulting in high integration, a compact structure, small space occupation, and convenient overall installation and disassembly.

[0015] According to a third aspect of this application, an electrode conveying system is also provided, comprising a cutting assembly, a dust removal assembly, a deviation correction assembly, and the aforementioned feeding mechanism arranged sequentially along the electrode conveying direction.

[0016] In some embodiments, the cutting assembly includes a cutter and a guide. The guide is disposed on the side of the cutter near the dust removal assembly, and the end of the guide away from the cutter extends into the feed inlet of the dust removal assembly. This addresses the problem in related technologies where the electrode tilts upward and its end shifts due to the downward pressure of the cutter during electrode cutting. The electrode can fit tightly against the surface of the guide and be conveyed along the surface of the guide, effectively reducing the risk of warping of the electrode during the cutting process.

[0017] In some embodiments, the guide includes a connecting portion and a first guide portion, the connecting portion being angularly connected to the first guide portion, the connecting portion being close to the cutter and connected to the side of the cutter, and the guide portion extending in a direction away from the cutter into the feed inlet of the dust removal assembly.

[0018] In some embodiments, a ball bearing structure is provided on the side of the first guide portion away from the connecting portion. The ball bearing structure protrudes from the surface of the first guide portion and is rotatably connected to the first guide portion. The connecting portion is adjacent to the cutter and directly connected to the side of the cutter. The first guide portion extends from the connecting portion in a direction away from the cutter. The first guide portion can smoothly enter the feed inlet of the dust removal assembly, making reasonable use of space and resulting in a compact structure.

[0019] In some embodiments, a composite coating of zirconium oxide and Teflon is formed on the side of the first guide portion away from the connecting portion. This prevents the electrode from scratching the first guide portion and reduces electrode transport jamming; the two work synergistically to improve the performance of the first guide portion.

[0020] In some embodiments, the ball structure includes a plurality of balls arranged in a multi-row, multi-column matrix. This ensures that the friction coefficient remains essentially consistent throughout the first guide portion, reducing the probability of the electrode shifting off the transmission path due to large local friction forces, causing jamming.

[0021] In some embodiments, the dust removal assembly includes a dust collection box forming a conveying channel. The dust collection box is provided with a suction chamber and a suction port. The suction chamber is located on both sides of the conveying channel, and the suction port is located on both sides of the conveying channel near the discharge port. The suction port communicates with the suction chamber on its respective side. The suction chamber and suction port are provided on both sides of the conveying channel to clean dust and other particles from both sides of the electrode sheet, ensuring the cleanliness of both sides of the electrode sheet.

[0022] In some embodiments, a second guide portion is formed on the dust collector box. The second guide portion is disposed near the feed inlet of the conveying channel, and the side of the second guide portion away from the feed inlet is inclined. The second guide portion on the dust collector box ensures that the drooping electrode sheet can enter the conveying channel along the second guide portion, reducing the possibility of the electrode sheet getting stuck at the point of entry into the dust collector assembly. The debris generated by the cutting assembly cutting the electrode sheet enters the dust collection tank, is collected in the dust collection tank, and is discharged from the discharge channel, reducing the probability of debris adhering to the electrode sheet and causing damage during electrode sheet conveying.

[0023] In some embodiments, the dust collection box is further provided with a dust collection groove, which is located on the side of the second guide near the cutter assembly, and the opening of the dust collection groove is arranged facing the conveying channel.

[0024] In some embodiments, the dust removal assembly further includes a rotating shaft mechanism disposed on the dust collection boxes on both sides of the discharge port of the conveying channel. The rotating shaft mechanism is rotatably connected to the dust collection boxes and is aligned with the suction port. The rotating shaft mechanism dynamically transfers dust on the electrode plates, improving dust removal efficiency.

[0025] According to a fourth aspect of this application, a thermal composite stacking machine is also provided, comprising the electrode conveying system described in any one of the preceding claims.

[0026] In the guiding assembly, feeding mechanism, electrode conveying system, and thermal composite stacking machine of this application embodiment, the friction between the electrode and the guide plate is reduced by the ball bearing structure, the electrode conveying speed is increased, the probability of electrode conveying jamming caused by the large resistance between the electrode and the guide plate is reduced, the number of start-ups and shutdowns of the electrode conveying system is reduced, the production efficiency of the battery cell is improved, and the processing cost is reduced.

[0027] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of 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.

[0029] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0030] Figure 1This is a schematic diagram of the overall structure of the electrode conveying system provided in an exemplary embodiment of this disclosure;

[0031] Figure 2 yes Figure 1 Sectional view of AA;

[0032] Figure 3 yes Figure 1 Enlarged view of the upper middle section;

[0033] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0034] Figure 5 This is a first-view structural schematic diagram of the cutter assembly provided in an exemplary embodiment of this disclosure;

[0035] Figure 6 This is a second-view structural schematic diagram of the cutter assembly provided in an exemplary embodiment of this disclosure;

[0036] Figure 7 This is a schematic diagram of the feeding mechanism provided in an exemplary embodiment of this disclosure;

[0037] Figure 8 yes Figure 7 Enlarged schematic diagram of part B in the middle;

[0038] Figure 9 This is a first-view structural schematic diagram of the dust removal component provided in an exemplary embodiment of this disclosure;

[0039] Figure 10 This is a second-view structural schematic diagram of the dust removal component provided in the disclosed exemplary embodiment.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Electrode conveying system;

[0042] 10. Cutting blade assembly; 11. Cutting blade; 12. Guide component; 121. Connecting part; 123. First guide part;

[0043] 20. Dust removal assembly; 21. Dust removal box; 211. First sub-box; 213. Second sub-box; 215. Dust removal trough; 217. Suction chamber; 219. Suction port; 23. Conveying channel; 231. Feed inlet; 233. Discharge outlet; 25. Second guide section; 27. Rotating shaft mechanism; 28. Second frame; 29. ​​Linear motor;

[0044] 30. Correction assembly; 31. Correction clamp; 311. Toothed plate;

[0045] 40. Feeding mechanism; 41. Guide assembly; 410. Frame; 430. Guide plate; 431. Sub-plate; 433. Horizontal section; 435. Inclined section; 450. Ball bearing structure; 42. First frame; 421. First electrode inlet; 423. Second electrode inlet; 425. Diaphragm inlet; 43. First input assembly; 45. Second input assembly; 451. First roller mechanism; 452. Dust collection mechanism; 453. Second roller mechanism; 454. Clamping plate; 47. Combined roller; 49. Vibrator;

[0046] 50. Roller assembly. Detailed Implementation

[0047] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0048] See Figure 7 and Figure 8 This application provides a guide assembly 41 for use in a feeding mechanism 40 for conveying electrode sheets. The guide assembly 41 includes a frame 410 and a guide plate 430. The frame 410 forms an opening through which the electrode sheet enters the feeding mechanism 40. The frame 410 is a rectangular frame, and the corresponding opening is a rectangular opening. The guide plate 430 is mounted on the frame 410 on one side of the opening. The guide plate 430 partially extends out of the frame 410, and a ball bearing structure 450 is provided on the side of the guide plate 430 near the opening. The ball bearing structure 450 partially protrudes from the surface of the guide plate 430, and the guide plate 430 and the ball bearing structure 450 are in a rolling connection. The ball bearing structure 450 includes a plurality of micro-balls, the diameter of which is D, wherein 2.9 mm ≤ D ≤ 3.1 mm. The balls are embedded in the guide plate 430. The ball bearings can be ceramic ball bearings with a roughness of Ra0.4, which reduces the coefficient of friction of the guide plate 430 to below 0.08, thereby reducing the friction between the electrode and the guide plate 430 and increasing the transmission speed of the electrode. This also reduces the probability of electrode jamming due to high resistance between the electrode and the guide plate 430.

[0049] This application provides a guide assembly 41 applied to a feeding mechanism 40, designed to improve the efficiency and reliability of electrode transfer. The guide assembly 41 includes a frame 410 and a guide plate 430. An opening is formed in the frame 410 through which the electrode enters the feeding mechanism 40. The frame 410 is designed as a rectangular frame, and its corresponding opening is also rectangular to facilitate smooth entry of the electrode. The guide plate 430 is mounted on the frame 410 on one side of the opening and extends partially outside the frame 410 to better guide the electrode. A ball bearing structure 450 is provided on the side of the guide plate 430 near the opening. The ball bearing structure 450 partially protrudes from the surface of the guide plate 430 and is in a rolling connection with the guide plate 430.

[0050] In this embodiment, the ball bearing structure 450 reduces the friction between the electrode and the guide plate 430, increases the electrode transmission speed, reduces the probability of electrode conveying jamming caused by the large resistance between the electrode and the guide plate 430, reduces the number of production line start-ups and shutdowns during electrode transmission, improves cell production efficiency, and reduces processing costs.

[0051] In some embodiments, the ball structure 450 consists of multiple micro-balls with a diameter between 2.9 mm and 3.1 mm, ensuring their secure embedding on the guide plate 430. The balls may be made of ceramic and finely machined to achieve a surface roughness Ra0.4, thereby reducing the coefficient of friction of the guide plate 430 to below 0.08. This reduces the friction between the electrode and the guide plate 430, increases the electrode transport speed, and lowers the probability of jamming during electrode transport.

[0052] In some embodiments, multiple micro-balls are arranged in a multi-row, multi-column matrix, which facilitates processing and ensures that the friction coefficients at various points of the guide plate 430 remain basically consistent, reducing the probability of the electrode being jammed due to large displacement of the electrode from the transmission path caused by local friction.

[0053] In one embodiment, see Figure 8 The height of the ball structure 450 protruding from the surface of the guide plate 430 is h, where 0.2 mm ≤ h ≤ 0.3 mm. The value of h can be 0.2 mm, 0.23 mm, 0.26 mm, 0.28 mm, 0.3 mm, or other unlisted values. The ball structure 450 includes multiple micro-balls, each of which protrudes from the surface of the guide plate 430 at the same height.

[0054] In this embodiment, the height range of the ball bearing structure 450 protruding from the surface of the guide plate 430 is reasonable, ensuring effective contact between the ball bearing and the electrode. By supporting the electrode with the rolling of the ball bearing, the sliding friction between the electrode and the guide plate 430 is converted into rolling friction, significantly reducing conveying resistance and preventing the electrode from getting stuck due to excessive friction. It also avoids the problem of excessive protrusion causing severe jolting during electrode conveying, or insufficient contact between the ball bearing and the electrode due to insufficient protrusion, thus failing to perform the rolling guiding function.

[0055] In some embodiments, see Figure 7 and Figure 8 The guide plate 430 includes a plurality of sub-plates 431, which are spaced apart along a first direction. Each sub-plate 431 has a ball bearing structure 450 on its surface.

[0056] Understandably, the input side of the feeding mechanism 40 is provided with a correction component 30, which includes a correction clamping plate 31. The correction clamping plate 31 has multiple toothed plates 311 on the side near the guide plate 430, and these toothed plates 311 are spaced apart along a first direction. In this embodiment, the guide plate 430 includes multiple sub-plates 431, which are spaced apart along a first direction.

[0057] See Figure 2 and Figure 3 The slots formed between the toothed plate 311 on the correction clamp 31 and the sub-plate 431 of the guide plate 430 are complementary, so that the sub-plate 431 is located at the gap of the corresponding toothed plate 311, and the toothed plate 311 is located at the gap on the guide plate 430. The complementary structure can effectively avoid physical collision or overlapping of movement trajectory between the correction component 30 and the guide plate 430 when the material position is dynamically adjusted, ensuring that the correction action and the guiding function do not interfere with each other, which not only ensures the stability of electrode conveying, but also improves the overall reliability of the feeding mechanism 40.

[0058] See Figure 7 Each sub-plate 431 has a ball bearing structure 450 on its surface to ensure that the friction coefficient of each sub-plate 431 is consistent, reducing the probability of the electrode being stuck due to large displacement of the electrode from the transmission path caused by local friction.

[0059] In some embodiments, see Figure 8 The sub-plate 431 includes a horizontal portion 433 and an inclined portion 435. One end of the horizontal portion 433 is close to the frame 410 and connected to the frame 410 on the opening side. The other end of the horizontal portion 433 extends out of the frame 410 and connects to the inclined portion 435. The inclined portion 435 is inclined away from the opening. The side of the horizontal portion 433 and / or the inclined portion 435 is provided with a ball bearing structure 450.

[0060] In this embodiment, the horizontal section 433 provides a horizontal transport base for the electrode sheet, and the inclined section 435 is inclined away from the opening, which can smoothly guide the electrode sheet into the horizontal section 433 and avoid the electrode sheet getting stuck at the transition point. The ball bearing structure 450 can convert the sliding friction between the electrode sheet and the daughter plate 431 into rolling friction, which can reduce electrode sheet wear and prevent the electrode sheet from wrinkling or shifting due to excessive friction.

[0061] In some embodiments, see Figure 8 The angle formed between the plane containing the inclined part 435 and the horizontal part 433 is θ, where 29°≤θ≤31°. The value of θ can be 29°, 29.6°, 30°, 30.5°, 31° or other unlisted values.

[0062] In this embodiment, the angle between the plane containing the inclined portion 435 and the horizontal portion 433 is in the range of 29° to 31°. This angle avoids the inclined portion 435 being too flat due to an angle that is too small (e.g., <29°), which would cause the electrode to accumulate and stagnate at the junction of the horizontal portion 433 and the inclined portion 435. It also prevents the inclined portion 435 from being too steep due to an angle that is too large (e.g., >31°), which would cause the electrode to be accelerated and impacted by gravity when turning, resulting in bouncing, deviation, or edge wear. This ensures a smooth and uninterrupted transition from horizontal transport to inclined guidance.

[0063] In some embodiments, a chromium plating is formed on one side of the inclined portion 435 near the opening.

[0064] In this embodiment, a hard chrome plating process is applied to the surface of the inclined portion 435 to form a chrome metal plating layer. This chrome metal layer increases the wear resistance of the inclined portion 435, preventing surface scratches and dents after long-term use, ensuring the flatness of the inclined portion 435 surface, and maintaining the stability of the electrode transport path. The chrome plating layer is chemically stable and can isolate air, moisture, and trace amounts of corrosive media that may be carried by materials, ensuring the structural integrity of the inclined portion 435 and reducing the frequency of maintenance and replacement due to corrosion. The high surface finish of the chrome metal plating layer further reduces the frictional resistance between the electrode and the inclined portion 435 contact surface, forming a "double drag reduction" effect with the ball bearing structure 450, ensuring smooth electrode transport, protecting the electrode, and reducing the occurrence of electrode scratches.

[0065] In some embodiments, see Figure 7 and Figure 8 It also includes a vibrator 49, mounted on the lower surface of one of the sub-plates 431, the upper surface of which is adapted to contact the tabs of the electrode plate. The vibrator 49 is an ultrasonic vibrator. The vibrator 49 is mounted on the side of the horizontal part 433 opposite to the opening. The vibration frequency of the vibrator 49 is 20 kHz, and the amplitude is 5 μm.

[0066] In this embodiment, a vibrator 49 is provided on the sub-plate 431. The sub-plate 431 on which the vibrator 49 is provided corresponds to the position of the electrode tab, which helps the electrode tab to smoothly enter the feeding mechanism 40 and ensures smooth conveying of the electrode tab position.

[0067] Secondly, see Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 This application provides a feeding mechanism 40, which includes a guide component 41 as described above. The feeding mechanism 40 has all the beneficial effects of the guide component 41, which will not be elaborated further here.

[0068] In some embodiments, see Figure 3 and Figure 7 The feeding mechanism 40 also includes a first frame 42. The first frame 42, near the side of the correction assembly 30, has a first electrode input port 421, a diaphragm input port 425, and a second electrode input port 423. The first electrode input port 421 of the first frame 42 is provided with a guide assembly 41, the frame 410 of which is mounted on the first frame 42 surrounding the first electrode input port 421. The second electrode input port 423 of the first frame 42 is also provided with a guide assembly 41, the frame 410 of which is mounted on the first frame 42 surrounding the second electrode input port 423. The first frame 42 houses a first input component 43 and a second input component 45. The first input component 43 corresponds to the first electrode input port 421 and is used to transport the first electrode. The second input component 45 corresponds to the second electrode input port 423 and is used to transport the second electrode. A combined roller 47 is provided on the output side of the first input component 43 and the second input component 45. The first electrode, the diaphragm, and the second electrode enter the subsequent rolling roller assembly 50 for compounding after passing through the combined roller 47. Both the first input component 43 and the second input component 45 include a first pair of rollers mechanism 451, a dust collection mechanism 452, a second pair of rollers mechanism 453, and a clamping plate 454 arranged sequentially along the electrode transport path.

[0069] In this embodiment, the feeding mechanism 40 integrates multiple guide components 41, a first input component 43, a second conveying assembly, and a combination roller 47 through the first frame 42, which makes the feeding mechanism 40 highly integrated, compact in structure, and occupies little space, and facilitates overall installation and disassembly.

[0070] Thirdly, see Figure 1 , Figure 2 and Figure 3This application provides an electrode conveying system 1, including a cutter assembly 10, a dust removal assembly 20, a deviation correction assembly 30, and the aforementioned feeding mechanism 40, arranged sequentially along the electrode conveying direction. This electrode conveying system 1 possesses all the beneficial effects of the aforementioned feeding mechanism 40, which will not be elaborated upon here.

[0071] In some embodiments, see Figure 3 , Figure 4 , Figure 5 and Figure 6 The cutter assembly 10 includes a cutter 11 and a guide 12. The guide 12 is provided on the side of the cutter 11 near the dust removal assembly 20. The end of the guide 12 away from the cutter 11 extends into the feed inlet 231 of the dust removal assembly 20.

[0072] In related technologies, when the cutter 11 cuts the electrode sheet, the electrode sheet tilts upward and its end shifts as the cutter 11 applies downward pressure. In this embodiment, a guide 12 is provided on the side of the cutter 11 near the dust removal assembly 20. When the cutter 11 is pressed down to cut the electrode sheet, the electrode sheet adheres to the guide 12 and is conveyed along the surface of the guide 12, reducing the occurrence of electrode sheet warping. This avoids electrode sheet jamming between the cutter assembly 10 and the dust removal assembly 20, ensuring smooth electrode sheet transmission.

[0073] This application embodiment addresses the problem in related technologies where the electrode sheet tilts upward and its end shifts due to the downward pressure of the cutter 11 during electrode cutting. In this embodiment, a guide 12 is provided on the side of the cutter 11 closest to the dust removal assembly 20. When the cutter 11 performs a downward cutting operation, the electrode sheet can fit tightly against the surface of the guide 12 and be conveyed along the surface of the guide 12. This effectively reduces the risk of warping of the electrode sheet during the cutting process. By adding the guide 12 between the cutter assembly 10 and the dust removal assembly 20, jamming of the electrode sheet during conveying can be avoided, thus ensuring a smoother and more efficient electrode sheet transmission process.

[0074] In some embodiments, see Figure 3 , Figure 4 , Figure 5 and Figure 6 The guide member 12 includes a connecting part 121 and a first guide part 123. The connecting part 121 and the first guide part 123 are connected at an angle, and the connecting part 121 is close to the side of the cutter 11 and connected to the side of the cutter 11. The guide part extends away from the cutter 11 into the feed inlet 231 of the dust removal assembly 20.

[0075] In this embodiment, the connecting portion 121 is located adjacent to the cutter 11 and is directly connected to the side of the cutter 11. The first guide portion 123 extends from the connecting portion 121 in a direction away from the cutter 11, and the first guide portion 123 can smoothly enter the feed inlet 231 of the dust removal assembly 20. The guide member 12 not only plays an important role in guiding the material into the feed inlet 231 of the dust removal assembly 20, but also makes reasonable use of space and has a compact structure.

[0076] In some embodiments, see Figure 5 A ball bearing structure 450 is provided on the side of the first guide portion 123 away from the connecting portion 121. The ball bearing structure 450 protrudes from the surface of the first guide portion 123 and is rotatably connected to the first guide portion 123. The ball bearing structure 450 is composed of multiple micro-balls with a diameter between 2.9 mm and 3.1 mm, ensuring their secure embedding on the guide plate 430. The balls can be made of ceramic material and finely machined to achieve a roughness Ra0.4, thereby reducing the coefficient of friction of the guide plate 430 to below 0.08.

[0077] In this embodiment, the ball bearing structure 450 reduces the friction between the electrode and the first guide portion 123, increases the electrode transmission speed, reduces the probability of electrode conveying jamming caused by the large resistance between the electrode and the first guide portion 123, reduces the number of production start-ups and shutdowns, improves the production efficiency of the battery cell, and reduces processing costs.

[0078] In some embodiments, a composite coating of zirconium oxide and Teflon is formed on the side of the first guide portion 123 away from the connecting portion 121. A zirconium oxide coating and a Teflon coating are sprayed onto the surface of the second guide portion 25, and the zirconium oxide coating and the Teflon coating form a composite coating.

[0079] In this embodiment, the zirconia coating provides strong wear-resistant support, resisting frictional losses caused by the contact between the first guide portion 123 and the electrode, and preventing surface scratches and deformation. The Teflon coating has a low coefficient of friction, significantly reducing the electrode conveying resistance. Combined with the zirconia coating substrate, it not only prevents the electrode from scratching the first guide portion 123, but also reduces electrode conveying jamming. The two work synergistically to improve the performance of the first guide portion 123.

[0080] In some embodiments, see Figure 5 The ball structure 450 includes multiple balls arranged in a multi-row, multi-column matrix. The spacing between adjacent rows is 5mm. The arrangement of multiple micro-balls in a multi-row, multi-column matrix facilitates processing and ensures that the friction coefficient of the first guide section 123 remains basically consistent, reducing the probability of the electrode shifting off the transmission path due to large local friction forces and causing jamming.

[0081] In some embodiments, multiple balls in adjacent rows are staggered so that the coefficient of friction on the surface of the first guide portion 123 remains basically consistent, thereby improving the smoothness of electrode transmission.

[0082] In some embodiments, see Figure 3 , Figure 4 , Figure 9 and Figure 10 The dust collection box 21 forms a conveying channel 23. The dust collection box 21 is provided with a dust suction chamber 217 and a dust suction port 219. The dust suction chamber 217 is located on both sides of the conveying channel 23. The dust suction port 219 is located on the side of the discharge port 233 of the conveying channel 23 and is connected to the dust suction chamber 217 on the side where it is located.

[0083] For example, see Figure 3 , Figure 4 , Figure 9 and Figure 10 The dust collection box 21 includes a first sub-box 211 and a second sub-box 213, with an electrode conveying channel 23 between the first sub-box 211 and the second sub-box 213. Both the first sub-box 211 and the second sub-box 213 are provided with a dust collection chamber 217 and a dust collection port 219. The dust collection chambers 217 of the first sub-box 211 and the second sub-box 213 are located on both sides of the conveying channel 23. The dust collection ports 219 are opened on the boxes of the first sub-box 211 and the second sub-box 213 near the discharge port 233 of the conveying channel 23.

[0084] In this embodiment, a dust suction chamber 217 and a dust suction port 219 are provided on both sides of the conveying channel 23 to clean dust and other particles on both sides of the electrode sheet and ensure the cleanliness of both sides of the electrode sheet.

[0085] In some embodiments, see Figure 3 , Figure 4 , Figure 9 and Figure 10 The dust removal assembly 20 includes a dust collection box 21, on which a second guide portion 25 is formed. The second guide portion 25 is disposed near the feed inlet 231 of the conveying channel 23, and the side of the second guide portion 25 away from the feed inlet 231 is inclined. For example, the second guide portion 25 is disposed on a second sub-box 213, and the side of the second guide portion 25 away from the feed inlet 231 is inclined, so that the feed inlet 231 forms a flared structure.

[0086] Before entering the electrode conveying system 1, the electrode is softened by the preceding baking process, and the front end of the electrode cut by the cutting assembly 10 is prone to collapsing under its own weight. In this embodiment, a second guide 25 is provided on the dust collection box 21 to ensure that the collapsed electrode can enter the conveying channel 23 along the second guide 25, reducing the possibility of the electrode getting stuck at the point of entering the dust collection assembly 20.

[0087] The second guide section 25 guides the front half of the electrode sheet, and the first guide section 123 guides the rear half of the electrode sheet, so that the electrode sheet moves along the inside of the dust collection assembly, reducing the probability of the electrode sheet getting stuck between the cutter assembly 10 and the dust removal assembly 20, improving the smoothness of the electrode sheet transmission in the electrode sheet conveying system 1, and improving the transmission efficiency of the electrode sheet.

[0088] In some embodiments, see Figure 3 , Figure 4 , Figure 9 and Figure 10 The dust collection box 21 is also provided with a dust collection groove 215, which is located on the side of the second guide portion 25 near the cutter assembly 10. The opening of the dust collection groove 215 is set towards the side where the conveying channel 23 is located. The side wall of the dust collection groove 215 is fitted to the side of the cutter assembly 10.

[0089] In this embodiment, a dust collection groove 215 is provided on the dust collection box 21, which is located adjacent to the cutter assembly 10. The debris generated by the cutter assembly 10 cutting the electrode enters the dust collection groove 215, is collected by the dust collection groove 215, and is discharged from the discharge channel, thereby reducing the probability of debris sticking to the electrode and causing damage to the electrode during the electrode transport.

[0090] In some embodiments, see Figure 3 , Figure 4 , Figure 9 and Figure 10 The dust removal assembly 20 also includes a rotating shaft mechanism 27, which is disposed on the dust collection boxes 21 on both sides of the discharge port 233 of the conveying channel 23. The rotating shaft mechanism 27 is rotatably connected to the dust collection box 21, and the rotating shaft mechanism 27 is aligned with the dust suction port 219.

[0091] For example, see Figure 3 , Figure 4 , Figure 9 and Figure 10 A rotating shaft mechanism 27 is installed on the first sub-box 211 and another rotating shaft mechanism 27 is installed on the second sub-box 213. The electrode passes between the two rotating shaft mechanisms 27, causing the rotating shaft mechanisms 27 to rotate. The rotating shaft mechanism 27 includes a rotating shaft and multiple bearings sleeved on the rotating shaft. The bearings are ceramic bearings with smooth surfaces, transferring debris and dust from the electrode surface to the rotating shaft mechanism 27. The rotating shaft mechanism 27 is aligned with the suction port 219, and debris and dust on the rotating shaft mechanism 27 are sucked into the suction chamber 217 through the suction port 219, thus cleaning the electrode. The two rotating shaft mechanisms 27 not only position the electrode, allowing it to smoothly enter the next-stage correction component 30 and reducing electrode jamming, but also dynamically transfer dust on the electrode, increasing the dust removal efficiency to 95%.

[0092] The electrode conveying system 1 of this application embodiment solves the problem of high-incidence areas of electrode jamming on the electrode conveying system 1 through the guide member 12, the second guide part 25, the rotating shaft mechanism 27 and the guide assembly 41, which greatly reduces the jamming of electrode during the transmission process and improves the conveying efficiency of the electrode conveying system 1.

[0093] In some embodiments, see Figure 3 and Figure 4 The electrode conveying system 1 also includes a second frame 28, within which the cutting assembly and dust removal assembly 20 are both installed. The electrode conveying system 1 has a high degree of integration and saves space.

[0094] In some embodiments, see Figure 3 and Figure 4 The electrode conveying system 1 also includes a linear motor 29. A second frame 28 and a correction assembly 30 are connected to the linear motor 29. The linear motor 29 drives the second frame 28 to reciprocate the cutter assembly 10 and the dust removal assembly 20 along the electrode conveying direction. The linear motor 29 also drives the correction assembly 30 to reciprocate along the electrode conveying direction. The linear motor 29 is a dual-drive motor, and the correction assembly 30, cutter assembly 10, and dust removal assembly 20 are integrated, resulting in a compact structure and small footprint.

[0095] Fourthly, embodiments of this application provide a thermal lamination stacking machine, including the electrode conveying system 1 described above. This thermal lamination stacking machine possesses all the beneficial effects of the electrode conveying system 1 described above, which will not be elaborated further here.

[0096] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0097] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0098] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0099] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A guide component (41), characterized in that, include, The frame (410) forms an opening; A guide plate (430) is installed on the frame (410) on one side of the opening. The guide plate (430) extends out of the frame (410). A ball bearing structure (450) is provided on one side of the guide plate (430) near the opening. The ball bearing structure (450) protrudes from the surface of the guide plate (430). The guide plate (430) and the ball bearing structure (450) are in a rolling connection.

2. The guide assembly (41) according to claim 1, characterized in that, The height of the ball structure (450) protruding from the surface of the guide plate (430) is h, where 0.2mm≤h≤0.3mm.

3. The guide assembly (41) according to claim 1, characterized in that, The guide plate (430) includes a plurality of sub-plates (431), which are spaced apart along a first direction, and the surface of each sub-plate (431) is provided with the ball structure (450).

4. The guide assembly (41) according to claim 3, characterized in that, The sub-plate (431) includes a horizontal portion (433) and an inclined portion (435). One end of the horizontal portion (433) is close to the frame (410) and connected to the frame (410) on the side of the opening. The other end of the horizontal portion (433) extends out of the frame (410) and connects to the inclined portion (435). The inclined portion (435) is inclined away from the opening. The ball bearing structure (450) is provided on the side of the horizontal portion (433) and / or the inclined portion (435).

5. The guide assembly (41) according to claim 4, characterized in that, The angle between the inclined portion (435) and the plane containing the horizontal portion (433) is θ, where 29°≤θ≤31°.

6. The guide assembly (41) according to claim 4, characterized in that, A chromium metal plating is formed on one side of the inclined portion (435) near the opening.

7. The guide assembly (41) according to claim 3, characterized in that, It also includes a vibrator (49) mounted on the lower surface of one of the subplates (431), the upper surface of which is adapted to contact the tabs of the electrode.

8. A feeding mechanism (40), characterized in that, Includes the guide component (41) as described in any one of claims 1 to 7.

9. The feeding mechanism (40) according to claim 8, characterized in that, It also includes a first frame (42), on one side of which are provided a first electrode input port (421), a diaphragm input port (425) and a second electrode input port (423). The diaphragm input port (425) is located between the first electrode input port (421) and the second electrode input port (423). The second electrode input port (423) of the first frame (42) is provided with a guide component (41). The frame (410) of the guide component (41) is installed on the first frame (42) around the second electrode input port (423). The second electrode input port (423) is provided with the guide component (41), and the frame (410) of the guide component (41) is installed on the first frame (42) around the second electrode input port (423).

10. An electrode conveying system (1), characterized in that, It includes a cutting assembly (10), a dust removal assembly (20), a deviation correction assembly (30), and a feeding mechanism (40) as described in claim 8 or 9, arranged sequentially along the electrode conveying direction.

11. The electrode conveying system (1) according to claim 10, characterized in that, The cutting assembly (10) includes a cutting blade (11) and a guide (12). The guide (12) is provided on the side of the cutting blade (11) near the dust removal assembly (20). The end of the guide (12) away from the cutting blade (11) extends into the feed inlet (231) of the dust removal assembly (20).

12. The electrode conveying system (1) according to claim 11, characterized in that, The guide member (12) includes a connecting part (121) and a first guide part (123). The connecting part (121) is connected to the first guide part (123) at an angle, and the connecting part (121) is close to the side of the cutter (11) and the guide part extends away from the cutter (11) into the feed inlet (231) of the dust removal assembly (20).

13. The electrode conveying system (1) according to claim 12, characterized in that, The first guide portion (123) has a ball structure (450) on the side away from the connecting portion (121). The ball structure (450) protrudes from the surface of the first guide portion (123) and is rotatably connected to the first guide portion (123).

14. The electrode conveying system (1) according to claim 13, characterized in that, A composite coating of zirconium oxide and Teflon is formed on one side of the first guide portion (123) away from the connecting portion (121).

15. The electrode conveying system (1) according to claim 13, characterized in that, The ball structure (450) includes a plurality of balls arranged in a multi-row, multi-column matrix.

16. The electrode conveying system (1) according to claim 10, characterized in that, The dust removal assembly includes a dust removal box (21), which forms a conveying channel (23). The dust removal box (21) is provided with a dust suction chamber (217) and a dust suction port (219). The dust suction chamber (217) is located on both sides of the conveying channel (23), and the dust suction port (219) is located on both sides of the conveying channel (23) near the discharge port (233). The dust suction port (219) is connected to the dust suction chamber (217) on its side.

17. The electrode conveying system (1) according to claim 16, characterized in that, A second guide portion (25) is formed on the dust collection box (21). The second guide portion (25) is disposed near the feed inlet (231) of the conveying channel (23), and the second guide portion (25) is disposed at an angle away from the feed inlet (231).

18. The electrode conveying system (1) according to claim 17, characterized in that, The dust collection box (21) is also provided with a dust collection groove (215), which is located on the side of the second guide (25) near the cutter assembly (10), and the opening of the dust collection groove (215) is arranged facing the conveying channel (23).

19. The electrode conveying system (1) according to claim 16, characterized in that, The dust removal assembly (20) also includes a rotating shaft mechanism (27), which is disposed on the dust collection box (21) on both sides of the discharge port (233) of the conveying channel (23). The rotating shaft mechanism (27) is rotatably connected to the dust collection box (21), and the rotating shaft mechanism (27) is aligned with the dust suction port (219).

20. A thermal composite stacking machine, characterized in that, Includes the electrode conveying system (1) as described in any one of claims 10 to 19.

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