Pole piece coil handling device and lamination apparatus

Abstract

The utility model provides an electrode plate material roll processing device and lamination equipment, the electrode plate material roll processing device, include: unwinding unit, unwinding unit is used to the electrode plate material roll unwinding becomes electrode plate material belt, traction unit, traction unit is used to make electrode plate material belt along the first side of preset path travels, printing unit, printing unit includes glue assembly, gravure roll and impression roller, gravure roll rotatably located in first side of preset path, the outer periphery of gravure roll is equipped with at least one glue storage cell group, glue assembly is used to glue storage cell group glue supply, impression roller rotatably located in second side of preset path and with gravure roll opposite, impression roller is used to press electrode plate material belt to gravure roll, with glue frame is formed to the glue water transfer printing in glue storage cell group to electrode plate material belt, glue frame solidification unit, glue frame solidification unit is located downstream of printing unit along the direction of travel of electrode plate material belt.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and more specifically, to an electrode roll processing device and a stacking equipment. Background Technology

[0002] In solid-state battery fabrication, a bonding frame is typically applied to the edge of the negative electrode. In existing technologies, the bonding frame is usually applied to each electrode individually after the electrode roll is slit to form the electrode sheet. For example, a robotic arm can be used to attach the bonding frame to the negative electrode sheet. However, the bonding frame is thin and small, making it prone to deformation and adhesion during loading and transfer. Furthermore, applying the bonding frame to each electrode individually is inefficient and not conducive to large-scale production. The thinness and small size of the bonding frame also make it susceptible to deformation and adhesion during loading and transfer, hindering manufacturing processes. Utility Model Content

[0003] This invention provides a new technical solution for an electrode roll processing device, which can at least solve the technical problem of low efficiency of existing electrode composite frames.

[0004] This utility model also provides a new technical solution for a stacking device.

[0005] According to a first aspect of the present invention, an electrode roll processing apparatus is provided, comprising: an unwinding unit for unwinding an electrode roll into an electrode strip; a traction unit for causing the electrode strip to travel along a preset path; a printing unit including a glue supply assembly, a gravure roller, and an impression roller; the gravure roller is rotatably disposed on a first side of the preset path, and at least one glue storage cell group is provided on the outer periphery of the gravure roller, the glue supply assembly for supplying glue to the glue storage cell group; the impression roller is rotatably disposed on a second side of the preset path and opposite to the gravure roller, the impression roller for pressing the electrode strip against the gravure roller to transfer the glue in the glue storage cell group to the electrode strip to form a glue frame; and a glue frame curing unit disposed downstream of the printing unit along the traveling direction of the electrode strip.

[0006] Optionally, the glue supply assembly includes: a glue tank, in which the gravure roller is located in a radial portion; a first doctor blade, which is in contact with the outer peripheral surface of the gravure roller; the glue tank, the first doctor blade, and the impression roller are arranged sequentially along the rotation direction of the gravure roller.

[0007] Optionally, the gravure roller is provided with a glue buffer chamber, which is connected to the glue storage mesh group; the glue supply assembly includes a glue tank and a pump body, the inlet end of the pump body is connected to the glue tank, and the outlet end of the pump body is connected to the glue buffer chamber.

[0008] Optionally, the glue supply assembly further includes: a second scraper, which is in contact with the outer peripheral surface of the gravure roller; and a return pipe, the first end of which is connected to the glue tank, and the second end of which is located below the contact point between the second scraper and the gravure roller.

[0009] Optionally, the adhesive frame curing unit is selected from one of the UV unit, hot air unit, and infrared radiation unit.

[0010] Optionally, the frame curing unit is a UV unit, and the electrode roll processing device further includes: a nitrogen inerting unit, which is located downstream of the printing unit along the travel direction and is situated on one side of the frame curing unit; and / or, a cooling unit, which is located downstream of the printing unit along the travel direction and is situated on one side of the frame curing unit.

[0011] Optionally, the hot air unit includes at least three independently arranged hot air modules arranged sequentially along the travel direction.

[0012] Optionally, the electrode roll processing device further includes: a frame detection unit, which is located downstream of the frame curing unit along the travel direction and on the first side of the preset path; the frame detection unit includes at least one of a vision inspection module, a size measurement module, and an insulation inspection module.

[0013] Optionally, the electrode roll processing device further includes: a correction unit, which is located upstream of the printing unit along the travel direction, and is used to correct the deviation of the electrode roll in its width direction; and an offset detection unit, which is located upstream and / or downstream of the correction unit along the travel direction.

[0014] Optionally, the electrode roll processing device further includes a plasma cleaning unit, which is located upstream of the printing unit along the travel direction and on the first side of the preset path.

[0015] Optionally, the electrode roll processing device further includes a strip dust removal unit, which is located upstream of the plasma cleaning unit along the travel direction and on the first side of the preset path.

[0016] Optionally, the electrode roll processing device further includes a tension control unit, which is located upstream of the printing unit along the travel direction.

[0017] Optionally, the traction unit is a winding unit.

[0018] Optionally, the traction unit includes a rotatable traction roller, and the electrode roll processing device further includes a slicing unit located downstream of the traction unit along the travel direction.

[0019] According to a second aspect of the present invention, a stacking device is provided, comprising the electrode roll processing apparatus described in any of the preceding claims.

[0020] According to the electrode roll processing device of this utility model, by means of the glue supply component, the gravure roller and the impression roller working together, the glue can be transferred to the edge of the electrode to form a glue frame when the electrode strip is moving. Moreover, by means of the glue frame curing unit, the glue frame formed by the transfer can be cured when the electrode strip is moving. There is no need to position, transfer and wait for each electrode, which effectively improves the battery production efficiency, can meet the needs of large-scale production, and ensures the yield of glue frames.

[0021] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0023] Figure 1 This is a schematic diagram of the structure of an electrode roll processing device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of an electrode roll processing device according to another embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of a gravure roller according to an embodiment of the present invention.

[0026] Figure Labels

[0027] 100. Electrode roll processing device;

[0028] 10. Unwinding unit; 20. Traction unit; 30. Printing unit; 31. Glue supply assembly; 311. Glue tank; 312. First doctor blade; 313. Glue bucket; 314. Second doctor blade; 315. Return pipe; 316. Glue injection pipe; 32. Gravure roller; 321. Glue storage cell assembly; 33. Impression roller; 40. Glue frame curing unit; 50. Glue frame detection unit; 60. Web correction unit; 70. Plasma cleaning unit; 80. Tension control unit; 90. Slicing unit;

[0029] 200. Electrode material strip. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0035] The electrode roll processing apparatus 100 according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] like Figures 1 to 3 As shown, the electrode roll processing device 100 according to an embodiment of the present invention includes: an unwinding unit 10, a traction unit 20, a printing unit 30, and a frame curing unit 40.

[0037] Specifically, the unwinding unit 10 is used to unwind the electrode material roll into an electrode material strip 200; the traction unit 20 is used to make the electrode material strip 200 travel along a preset path; the printing unit 30 includes a glue supply assembly 31, a gravure roller 32, and an impression roller 33; the gravure roller 32 is rotatably disposed on the first side of the preset path, and at least one glue storage cell group 321 is provided on the outer periphery of the gravure roller 32; the glue supply assembly 31 is used to supply glue to the glue storage cell group 321; the impression roller 33 is rotatably disposed on the second side of the preset path and is opposite to the gravure roller 32; the impression roller 33 is used to press the electrode material strip 200 against the gravure roller 32 to transfer the glue in the glue storage cell group 321 to the electrode material strip 200 to form a glue frame; the glue frame curing unit 40 is disposed downstream of the printing unit 30 along the traveling direction of the electrode material strip 200.

[0038] In other words, such as Figures 1 to 3As shown, the electrode roll processing device 100 according to an embodiment of the present invention is mainly used for processing electrode rolls. The electrode roll is formed by winding an electrode strip 200, on which multiple electrodes are divided, and the multiple electrodes are distributed along the length direction of the electrode strip 200. The electrode roll processing device 100 mainly includes a machine body, on which an unwinding unit 10, a traction unit 20, a printing unit 30, and a frame curing unit 40 are provided. Among them, the unwinding unit 10 can mount the electrode roll, and the unwinding unit 10 can unwind the electrode roll into an electrode strip 200, and the traction unit 20 can traction the electrode strip 200 to travel along a preset path.

[0039] The printing unit 30 mainly includes a glue supply assembly 31, a gravure roller 32, and an impression roller 33. Both the gravure roller 32 and the impression roller 33 are rotatably mounted on the machine body. Both the gravure roller 32 and the impression roller 33 can be driven to rotate by independent motors. The gravure roller 32 is located on the first side of the preset path (i.e., on the first side of the electrode material strip 200 in its thickness direction). The outer periphery of the gravure roller 32 is provided with a glue storage cell group 321, which is rectangular and has the same shape as the required glue frame. The impression roller 33 is located on the second side of the preset path (i.e., on the second side of the electrode material strip 200 in its thickness direction), and the position of the impression roller 33 corresponds to that of the gravure roller 32. In use, the glue supply assembly 31 continuously supplies glue to the glue storage cell assembly 321, and the impression roller 33 presses the electrode strip 200 against the gravure roller 32, so that the glue storage cell assembly 321 can accurately transfer the glue within it to the first side of the electrode strip 200 as the electrode strip 200 travels, forming a glue frame located at the edge of the electrode, thus ensuring the accuracy of the glue frame. The glue frame curing unit 40 is located downstream of the printing unit 30 along the traveling direction of the electrode strip 200. The glue frame curing unit 40 can cure the transferred glue frame as the electrode strip 200 travels, which can effectively improve the forming speed of the glue frame, thereby avoiding glue dripping or contamination of the electrode active layer.

[0040] Therefore, according to the electrode roll processing device 100 provided in this embodiment, by cooperating with the glue supply component 31, the gravure roller 32 and the impression roller 33, the glue can be transferred to the edge of the electrode to form a glue frame when the electrode strip 200 is traveling. Moreover, by the glue frame curing unit 40, the glue frame formed by the transfer can be cured when the electrode strip 200 is traveling. There is no need to position, transfer and wait for each electrode, which effectively improves the battery production efficiency, can meet the needs of large-scale production, and ensures the yield of glue frames.

[0041] It should be noted that the number of glue storage cells 321 on the gravure roller 32 can be determined according to the size of the gravure roller 32 and the size of the electrode sheet, which will not be elaborated in this embodiment.

[0042] In some optional examples of this utility model, the gravure roller 32 is a ceramic-coated gravure roller 32. The ceramic-coated gravure roller 32 has good wear resistance, and the use of this ceramic-coated gravure roller 32 can ensure the service life of the gravure roller 32.

[0043] According to one embodiment of this utility model, the glue storage mesh group 321 includes multiple mesh cells forming a rectangular frame structure. The mesh cells can be manufactured using laser engraving, with a mesh line count of 150 LPI (lines per inch) and a groove depth of 25 μm. Furthermore, the groove edge slope of the mesh cells can be set to 45° to reduce glue residue.

[0044] In some specific embodiments of this utility model, the glue supply assembly 31 includes: a glue groove 311, in which the gravure roller 32 is located in the glue groove 311 in its radial portion; a first scraper 312, which is in contact with the outer peripheral surface of the gravure roller 32; and the glue groove 311, the first scraper 312 and the impression roller 33 are arranged sequentially along the rotation direction of the gravure roller 32.

[0045] Specifically, such as Figure 1 As shown, the glue supply assembly 31 mainly includes a glue tank 311 and a first doctor blade 312. The glue tank 311 is used to hold the glue required for printing. The length of the opening of the glue tank 311 is greater than the axial dimension of the gravure roller 32. The glue tank 311 is located on the lower side of the gravure roller 32. The radial portion of the gravure roller 32 extends into the glue tank 311 from its opening, so that part of the gravure roller 32 is submerged in the glue within the glue tank 311. The first doctor blade 312 is mounted on the machine body, and one end of the first doctor blade 312 is in contact with the outer circumferential surface of the gravure roller 32. Furthermore, in the rotation direction of the gravure roller 32, the glue tank 311, the first doctor blade 312, and the impression roller 33 are arranged sequentially. When in use, as the gravure roller 32 rotates, the first scraper 312 can scrape off all the excess glue outside the glue storage mesh group 321, leaving only a fixed amount of glue inside the glue storage mesh, and the scraped glue can flow into the glue tank 311 from the opening of the glue tank 311.

[0046] In this embodiment, the glue supply assembly 31 can automatically fill the glue storage mesh with the help of the rotation of the gravure roller 32, without the need for an additional drive structure for glue supply, and the structure is simple.

[0047] In some optional embodiments of this utility model, the glue tank 311 is a constant temperature tank. This constant temperature tank can maintain the temperature of the glue within a preset range, such as 25°C, to ensure the viscosity and performance of the glue are stable, thereby guaranteeing consistent printing quality. The glue tank 311 is equipped with a stirrer. The stirring action of the stirrer effectively prevents the sedimentation of solid components in the glue, thus ensuring the uniformity and consistency of the glue.

[0048] According to one embodiment of the present invention, the gravure roller 32 is provided with an adhesive buffer chamber, which is connected to the adhesive storage mesh group 321; the adhesive supply assembly 31 includes an adhesive tank 313 and a pump body, the inlet end of the pump body is connected to the adhesive tank 313, and the outlet end of the pump body is connected to the adhesive buffer chamber.

[0049] In other words, such as Figure 2 As shown, the gravure roller 32 has a hollow structure, and its inner wall defines a glue buffer chamber, which is connected to each cell of the glue storage cell group 321. The glue supply assembly 31 mainly includes a glue tank 313 and a pump body. The glue tank 313 can be a thermostatic tank, which is used to hold glue. The pump body can be a gear pump, with its inlet end connected to the glue tank 313 and its outlet end connected to the glue buffer chamber. Specifically, the pump body has an inlet pipe at its inlet end, with the first end of the inlet pipe located at the inlet end of the pump body and the second end located inside the glue tank 313. One end of the gravure roller 32 has a coaxial glue injection channel, with the first end of the glue injection channel connected to the glue buffer chamber. The outlet end of the pump body is connected to the glue injection channel through a glue injection pipe 316.

[0050] In this embodiment, the pump body can inject the glue in the glue tank 313 into the glue buffer chamber, and then the glue buffer chamber can evenly distribute it to the glue storage mesh group 321, which helps to ensure a constant glue supply and thus ensure the consistency of the glue frame thickness.

[0051] In some optional examples of this utility model, the glue injection tube 316 is provided with a glue injection valve.

[0052] In some specific embodiments of this utility model, the glue supply assembly 31 further includes: a second scraper 314, which is in contact with the outer peripheral surface of the gravure roller 32; and a return pipe 315, the first end of which is connected to the glue tank 313, and the second end of which is located below the contact point between the second scraper 314 and the gravure roller 32.

[0053] Specifically, such as Figure 2As shown, the machine body is equipped with a second scraper 314, which is in contact with the outer peripheral surface of the gravure roller 32. During use, as the gravure roller 32 rotates, the second scraper 314 scrapes away the glue protruding from the outer peripheral surface of the gravure roller 32, thus ensuring the consistency of the glue frame thickness. A glue bucket 313 is located below the gravure roller 32. A return pipe 315 is fixedly connected to the upper end of the glue bucket 313. The lower end of the return pipe 315 communicates with the glue bucket 313, and the upper end of the return pipe 315 is located below the contact point between the second scraper 314 and the gravure roller 32, thereby immediately collecting the glue scraped off by the second scraper 314 back into the glue bucket 313, achieving glue recycling. At the same time, gas can enter the glue tank 313 from the upper end of the return pipe 315, ensuring the air pressure balance inside and outside the glue tank 313 without the need for additional ventilation structure, and preventing the formation of negative pressure inside the glue tank 313 when the pump body draws glue, which would cause fluctuations in the glue supply.

[0054] In some optional examples of this utility model, a filter is provided on the return pipe 315. The filter can be a 10μm level filter. The filter can intercept particulate impurities in the returned adhesive, thereby preventing particulate impurities from contaminating the adhesive in the glue bucket 313.

[0055] In some specific embodiments of this utility model, both the first scraper 312 and the second scraper 314 can be made of polyurethane, which has good wear resistance and elasticity. The angles of both the first scraper 312 and the second scraper 314 can be set to 50°. Furthermore, the pressure between the first scraper 312, the second scraper 314 and the surface of the gravure roller 32 is adjustable. Specifically, the first scraper 312 and the second scraper 314 are respectively equipped with a drive structure and a pressure sensor. The pressure sensor can dynamically provide feedback on the real-time pressure between the corresponding scraper and the surface of the gravure roller 32. The control system of the electrode roll processing device 100 can adjust the pressure applied by the corresponding scraper according to the feedback pressure, ensuring that the pressure between the scraper and the roller surface remains within a preset range, thereby effectively preventing glue splashing or scratching the roller surface.

[0056] According to one embodiment of the present invention, the adhesive frame curing unit 40 is selected from one of the UV unit, hot air unit and infrared radiation unit.

[0057] In other words, the frame curing unit 40 can be a UV unit, a hot air unit, or an infrared radiation unit. The UV unit mainly includes a UV lamp array, which can be an LED array with a wavelength selectable at 395nm and a power density selectable at 800mW / cm². 2 When the frame curing unit 40 uses a UV unit, the adhesive selected for printing is a UV insulating adhesive, such as Dymax9001-E, with a viscosity of 300 cP (25℃) and a volume resistivity >10¹⁸. 5Ω·cm. The UV unit irradiates the transferred adhesive frame with UV light, causing it to cure rapidly. The hot air unit mainly includes a hot air blower with a slit-structured air nozzle. The length of the air nozzle can be aligned with the width of the electrode strip 200. When the adhesive frame curing unit 40 uses a hot air unit, the selected adhesive can be a thermosetting adhesive. The hot air unit blows hot air onto the transferred adhesive frame, providing a relatively high-temperature environment, which is beneficial for the rapid drying and curing of the adhesive frame. The infrared radiation unit can be an infrared radiator, which emits infrared radiation with a wavelength of approximately 1.2μm towards the transferred adhesive frame, achieving penetrating drying and enabling rapid curing.

[0058] In some specific embodiments of this utility model, the frame curing unit 40 is a UV unit, and the electrode roll processing device 100 further includes: a nitrogen inertization unit, which is disposed downstream of the printing unit 30 along the travel direction and is located on one side of the frame curing unit 40; and / or, a cooling unit, which is disposed downstream of the printing unit 30 along the travel direction and is located on one side of the frame curing unit 40.

[0059] Specifically, the frame curing unit 40 is a UV unit, and a nitrogen inerting unit is located downstream of the printing unit 30. The nitrogen inerting unit can be a nitrogen source, such as a nitrogen cylinder. The nitrogen inerting unit is located on one side of the UV unit. Through the nitrogen curing unit, nitrogen can be continuously supplied to the surrounding area of ​​the frame when it is irradiated by UV light, so that the oxygen concentration in the environment of the frame is reduced to <100ppm. The low-oxygen environment can significantly inhibit the oxygen inhibition effect, thereby effectively improving the curing efficiency of the frame.

[0060] The cooling unit can be a cold plate or a cold roller, and it can be located on the second side of the preset path. During use, the electrode strip 200 is positioned between the cooling unit and the adhesive frame curing unit 40, with the cooling unit able to adhere to the side of the electrode strip 200 away from the adhesive frame. The cooling unit cools the electrode strip 200 during adhesive frame curing, effectively preventing damage due to overheating.

[0061] According to one embodiment of the present invention, the hot air unit includes at least three independently arranged hot air modules arranged sequentially along the travel direction.

[0062] In other words, the hot air unit includes multiple hot air modules distributed along the traveling direction of the electrode strip 200. Each hot air module includes at least one hot air blower, and the temperature of each hot air blower can be independently adjusted. In this embodiment, the hot air unit includes at least three hot air modules: a first hot air module, a second hot air module, and a third hot air module, which are distributed sequentially along the traveling direction of the electrode strip 200. During use, the temperature of the areas where the first and third hot air modules are located is lower than the temperature of the area where the second hot air module is located, allowing the hot air unit to form a preheating zone of 50°C, a main curing zone of 80°C to 120°C, and a slow cooling zone of 40°C. This ensures stable heating and cooling of the frame, effectively avoiding stress concentration and deformation, and guaranteeing the quality of the frame molding.

[0063] In some specific embodiments of this utility model, the electrode roll processing device 100 further includes: a frame detection unit 50, which is located downstream of the frame curing unit 40 along the travel direction, and is located on the first side of the preset path; the frame detection unit 50 includes at least one of a visual inspection module, a thickness measurement module, and an insulation detection module.

[0064] Specifically, such as Figure 1 and Figure 2 As shown, a frame detection unit 50 is located downstream of the frame curing unit 40. The frame detection unit 50 is situated on the first side of the preset path and can detect the frame on the first side of the electrode strip 200. The frame detection unit 50 includes a vision inspection module, a size measurement module, and an insulation inspection module. The vision inspection module can be a CCD vision system, with its lens facing the first side of the electrode strip 200. The vision inspection module can identify defects such as broken glue, bubbles, or foreign objects in the frame. The identification results can be fed back to the control system of the electrode roll processing device 100 in real time, facilitating adjustments to the device operation based on the identified structure to ensure stable frame quality. The size measurement module can be a laser triangulation instrument, which can measure the width and / or thickness of the frame. The measurement results can be fed back to the control system in real time, facilitating adjustments to the device operation based on the measurement results to ensure the frame reaches the predetermined dimensions. The insulation testing module can be a non-contact resistance meter. The insulation of the frame can be tested to see if it meets the standard. The test results can be fed back to the control system in real time, so as to adjust the operation of the device according to the test results and ensure the quality of the frame.

[0065] According to one embodiment of the present invention, the electrode roll processing device 100 further includes: a correction unit 60, which is disposed upstream of the printing unit 30 along the travel direction, and is used to correct the deviation of the electrode strip 200 in its width direction; and an offset detection unit, which is disposed upstream and / or downstream of the correction unit 60 along the travel direction.

[0066] In other words, such as Figure 1 and Figure 2 As shown, the machine body has a correction unit 60 upstream of the printing unit 30, and offset detection units upstream and downstream of the correction unit 60. The correction unit 60 can correct the electrode strip 200 in its width direction. The offset detection unit located upstream can detect the offset of the electrode strip 200 in its width direction before the electrode passes through the correction unit 60, and the offset detection unit located downstream can detect the offset of the electrode strip 200 in its width direction after the electrode passes through the correction unit 60.

[0067] In use, when the upstream offset detection unit detects that the electrode strip 200 has shifted, the correction unit 60 can correct the electrode strip 200 according to the detection result of the offset detection unit; the downstream offset detection unit can perform a second detection on the corrected electrode strip 200 to determine whether the correction effect is qualified, and feed the detection result back to the control system to realize closed-loop dynamic compensation, thereby ensuring that the position of the electrode strip 200 is always kept within the qualified range, and thus ensuring the accuracy of the position of the printing frame relative to the electrode in the subsequent printing process.

[0068] In this embodiment, the correction unit 60 can employ an existing correction mechanism, such as a serpentine correction mechanism, to correct the electrode strip 200 before printing the adhesive frame. The correction unit 60 can also employ other existing correction structures, which should be understood by those skilled in the art and will not be elaborated upon here.

[0069] In some specific embodiments of this utility model, the electrode roll processing device 100 further includes: a plasma cleaning unit 70, which is located upstream of the printing unit 30 along the travel direction, and the plasma cleaning unit 70 is located on the first side of the preset path.

[0070] Specifically, such as Figure 1 and Figure 2As shown, the machine body has a plasma cleaning unit 70 upstream of the printing unit 30. The plasma cleaning unit 70 can be a plasma cleaner, located on the first side of the preset path. It serves as a pretreatment unit to pre-treat the first side of the electrode strip 200. For example, the plasma cleaning unit 70 can use an argon / oxygen mixture of 8:2 as the working medium, a power density of 300 W / m, and a processing speed of 10 m / min-30 m / min to perform plasma pretreatment on the first side of the electrode strip 200. Verification has shown that the surface energy of the electrode strip 200 increases from 30 dyn / cm to over 60 dyn / cm, significantly improving surface activity and providing stronger adhesion for the subsequent adhesive frame.

[0071] According to one embodiment of the present invention, the electrode roll processing device 100 further includes a strip dust removal unit, which is located upstream of the plasma cleaning unit 70 along the travel direction and is situated on the first side of the preset path.

[0072] In other words, the machine body has a belt dust removal unit upstream of the plasma cleaning unit 70. The belt dust removal unit is located on the first side of the preset path, and can remove dust from the first side of the electrode belt 200. Specifically, the belt dust removal unit consists of an ion bar and a dust-adhesive roller rotatably mounted on the machine body. The ion bar is arranged upstream of the dust-adhesive roller. During operation, the ion bar first blows ion air onto the electrode belt 200 to neutralize its surface static electricity and reduce the adhesion of dust (e.g., graphite dust). Then, the first side of the belt passes tightly against the surface of the dust-adhesive roller, and the dust-adhesive roller completely removes the dust, thereby providing a substrate surface with better adhesion for subsequent frame printing.

[0073] In some specific embodiments of this utility model, the electrode roll processing device 100 further includes a tension control unit 80, which is located upstream of the printing unit 30 along the travel direction.

[0074] Specifically, a tension control unit 80 is located upstream of the printing unit 30. This tension control unit 80 allows for real-time adjustment of the tension of the electrode strip 200. The tension control unit 80 mainly consists of a magnetic powder brake, a swing arm, and a oscillating roller. The magnetic powder brake is fixed to the machine body. The first end of the swing arm is connected to the output end of the magnetic powder brake. The oscillating roller is rotatably located at the second end of the swing arm, situated on either the first or second side of a preset path. In use, the electrode strip 200 passes over the oscillating roller and enters the printing unit 30. The magnetic powder brake outputs a variable torque based on the real-time tension of the strip, which drives the oscillating roller to swing up and down via the swing arm, thereby changing the path length and achieving closed-loop tension adjustment. This stabilizes the tension within a predetermined range, ensuring the accuracy and consistency of the subsequent frame position.

[0075] According to one embodiment of the present invention, the traction unit 20 is a winding unit.

[0076] In this embodiment, the traction unit 20 is a winding unit installed on the machine body. The winding unit can not only traction the electrode strip 200 along a preset path, but also wind up the electrode strip 200 after the printing frame is printed and cured, so as to facilitate subsequent equipment use.

[0077] In some optional embodiments of this utility model, the winding unit and the unwinding unit 10 each include a motor and an air shaft, with the motor fixedly connected to the machine body and the output end of the motor fixedly connected to the air shaft. Alternatively, the winding unit and the unwinding unit 10 can also employ other existing unwinding and winding structures, which will not be elaborated upon in this embodiment.

[0078] In some specific embodiments of this utility model, the traction unit 20 includes a rotatable traction roller, and the electrode material roll processing device 100 further includes a slicing unit 90, which is located downstream of the traction unit 20 along the travel direction.

[0079] Specifically, the traction unit 20 includes a traction roller and a motor. The motor is fixedly connected to the machine body, and one end of the traction roller is fixedly connected to the output end of the motor. The motor can drive the traction roller to rotate. The outer circumferential surface of the traction roller can cooperate with the first side surface of the electrode strip 200. By controlling the rotation of the traction roller, the electrode strip 200 can be pulled along a preset path. Figure 1 and Figure 2As shown, a slicing unit 90 is also provided downstream of the traction unit 20. This slicing unit 90 can be an existing electrode slicing machine, mainly comprising a slicing platform, a cutter, and a drive unit. The slicing platform and the cutter are distributed vertically. The cutter can be a circular cutter, and the drive unit can be a cylinder or similar structure. The output end of the drive unit is connected to the cutter, allowing the cutter to move vertically. In use, the traction unit 20 can pull the electrode strip 200 between the slicing platform and the cutter, and the drive unit can drive the cutter to slit the electrode strip 200, forming an electrode with a frame.

[0080] Compared to the traction unit 20 which uses a winding unit, this embodiment eliminates the winding process. After the adhesive frame has cured, the slicing process can be performed directly without additional winding operations, thus effectively simplifying the process flow.

[0081] According to one embodiment of the present invention, the traction unit 20 includes at least one roller structure, and the electrode strip 200 can be pulled along a preset path by driving the roller structure to rotate by a motor.

[0082] In some embodiments of this utility model, a conveying unit, such as a conveyor belt, is provided downstream of the slicing unit 90, through which the electrode sheet can be conveyed to the next work station.

[0083] In some specific embodiments of this utility model, the electrode roll processing device 100 further includes a plurality of guide rollers, which are rotatably disposed on the machine body and can define the required preset path.

[0084] An embodiment of this utility model also provides a stacking device, including the electrode roll processing apparatus 100 described in any of the above embodiments. Since the electrode roll processing apparatus 100 according to the embodiments of this utility model has the above-described technical effects, the stacking device according to the embodiments of this utility model also has corresponding technical effects, which will not be repeated in this embodiment.

[0085] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0086] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An electrode sheet roll processing device, characterized in that, include: Unwinding unit (10), the unwinding unit (10) is used to unwind the electrode material into an electrode material strip; A traction unit (20) is used to make the electrode strip travel along a preset path; The printing unit (30) includes a glue supply assembly (31), a gravure roller (32), and an impression roller (33); The gravure roller (32) is rotatably disposed on the first side of the preset path. At least one glue storage mesh group (321) is provided on the outer periphery of the gravure roller (32). The glue supply component (31) is used to supply glue to the glue storage mesh group (321). The impression roller (33) is rotatably disposed on the second side of the preset path and opposite to the gravure roller (32). The impression roller (33) is used to press the electrode material strip against the gravure roller (32) to transfer the glue in the glue storage cell group (321) to the electrode material strip to form a glue frame. A frame curing unit (40) is located downstream of the printing unit (30) along the traveling direction of the electrode strip.

2. The electrode roll processing apparatus according to claim 1, characterized in that, The adhesive supply assembly (31) includes: The gravure roller (32) is located within the glue groove (311) in its radial portion; The first scraper (312) is in contact with the outer peripheral surface of the gravure roller (32); Along the rotation direction of the gravure roller (32), the glue groove (311), the first doctor blade (312) and the impression roller (33) are arranged in sequence.

3. The electrode roll processing apparatus according to claim 1, characterized in that, The gravure roller (32) is provided with a glue buffer cavity, which is connected to the glue storage mesh group (321); The adhesive supply assembly (31) includes: The glue tank (313) and the pump body are connected, with the inlet end of the pump body connected to the glue tank (313) and the outlet end of the pump body connected to the glue buffer chamber.

4. The electrode roll processing apparatus according to claim 3, characterized in that, The adhesive supply assembly (31) also includes: The second scraper (314) is in contact with the outer peripheral surface of the gravure roller (32); The return pipe (315) has its first end connected to the glue bucket (313) and its second end located below the contact point between the second scraper (314) and the gravure roller (32).

5. The electrode roll processing apparatus according to claim 1, characterized in that, The frame curing unit (40) is selected from one of the UV unit, hot air unit and infrared radiation unit.

6. The electrode roll processing apparatus according to claim 1, characterized in that, The adhesive frame curing unit (40) is a UV unit, and the electrode roll processing device further includes: A nitrogen inertization unit is disposed downstream of the printing unit (30) along the travel direction, and the nitrogen inertization unit is located on one side of the adhesive frame curing unit (40); and / or, A cooling unit is provided downstream of the printing unit (30) along the travel direction, and the cooling unit is located on one side of the glue frame curing unit (40).

7. The electrode roll processing apparatus according to claim 5, characterized in that, The hot air unit includes at least three independently arranged hot air modules arranged sequentially along the direction of travel.

8. The electrode roll processing apparatus according to claim 1, characterized in that, Also includes: A frame detection unit (50) is provided downstream of the frame curing unit (40) along the travel direction, and the frame detection unit (50) is located on the first side of the preset path; The frame inspection unit (50) includes at least one of a vision inspection module, a size measurement module, and an insulation inspection module.

9. The electrode roll processing apparatus according to claim 1, characterized in that, Also includes: A correction unit (60) is provided upstream of the printing unit (30) along the travel direction. The correction unit (60) is used to correct the deviation of the electrode strip in its width direction. The offset detection unit is provided upstream and / or downstream of the travel direction of the correction unit (60).

10. The electrode roll processing apparatus according to claim 1, characterized in that, Also includes: A plasma cleaning unit (70) is disposed upstream of the printing unit (30) along the travel direction, and the plasma cleaning unit (70) is located on the first side of the preset path.

11. The electrode roll processing apparatus according to claim 10, characterized in that, Also includes: The material belt dust removal unit is located upstream of the plasma cleaning unit (70) along the travel direction, and the material belt dust removal unit is located on the first side of the preset path.

12. The electrode roll processing apparatus according to claim 1, characterized in that, Also includes: Tension control unit (80) is located upstream of the printing unit (30) along the travel direction.

13. The electrode roll processing apparatus according to claim 1, characterized in that, The traction unit (20) is a winding unit.

14. The electrode roll processing apparatus according to claim 1, characterized in that, The traction unit (20) includes a rotatable traction roller, and the electrode roll processing device further includes: A slicing unit (90) is located downstream of the traction unit (20) along the travel direction.

15. A stacking device, characterized in that, The electrode roll processing apparatus includes any one of claims 1 to 14.

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