Pole piece processing device

Abstract

The utility model discloses a pole piece processing device. The pole piece processing device comprises a mounting frame, a transmission roller, a first driving assembly and at least two pattern rollers, the pattern rollers and the transmission rollers are rotationally arranged on the mounting frame and are arranged in parallel, a pole piece machining station is formed between each pattern roller and the corresponding transmission roller, the first driving assembly is used for driving and conveying pole pieces to enable the pole pieces to sequentially pass through the pole piece machining stations, and when the pole pieces pass through the corresponding pole piece machining stations, the pattern rollers drive the pole pieces to pass through the corresponding pole piece machining stations. Patterns of the corresponding sections are embossed on the pole piece, and the patterns embossed by the pattern rollers are sequentially spliced to form preset patterns. According to the technical scheme, the preset patterns are formed by embossing and splicing the pattern rollers and the transmission rollers, so that the size, the length and the like of the single pattern roller can be reduced, the machining difficulty and the mounting difficulty of the pattern rollers are further reduced, and the manufacturing cost and the maintenance cost of the pattern rollers are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole piece processing, in particular to a pole piece processing device. Background Art

[0002] With the rise and development of new energy, lithium batteries, as green, high-energy chemical power sources, have gained widespread application in the new energy industry due to their advantages of high energy, high power, and low cost. Given the limited size of lithium batteries, increasing battery capacity requires increasing the coating density. This results in a thicker coating layer, which in turn increases the battery's internal resistance and hinders lithium ion intercalation and deintercalation, ultimately affecting the battery's charge and discharge rates. To increase charge and discharge rates, micromachining of the electrode is required.

[0003] In related technologies, electrode sheet processing methods include roller pressing and laser processing. Laser processing is difficult to produce large and wide electrode sheets and is slow. Roll pressing, on the other hand, places high demands on the pattern roller. The wider the electrode sheet, the longer the pattern roller, which in turn increases the difficulty of processing the pattern roller, the higher the manufacturing cost, and the greater the difficulty of installation. Utility Model Content

[0004] The embodiment of the utility model provides a pole piece processing device, which can reduce the processing requirements and installation difficulty of the pattern roller.

[0005] The embodiment of the utility model provides a pole piece processing device, comprising a mounting frame, a transmission roller, a first driving assembly and at least two pattern rollers;

[0006] Each of the pattern rollers and the transmission rollers is rotatably mounted on the mounting frame, and each of the pattern rollers and the transmission rollers is arranged in parallel. A pole piece processing station is formed between each of the pattern rollers and the transmission rollers. The first driving assembly is used to drive and transport the pole piece so that the pole piece passes through each of the pole piece processing stations in sequence. Each of the pattern rollers imprints a pattern of a corresponding section on the pole piece when the pole piece passes through the corresponding pole piece processing station. The patterns imprinted by each of the pattern rollers are spliced in sequence to form a preset pattern.

[0007] Optionally, the pole piece processing device further includes a second drive assembly, which is disposed on the mounting frame and is transmission-connected to the pattern roller to drive the pattern roller toward or away from the transmission roller.

[0008] Optionally, the pole piece processing device further includes a pressure detection component, and the pressure detection component is arranged between the second driving component and the pattern roller.

[0009] Optionally, the pole piece processing device further includes a spacing detection component, and the spacing detection component is used to detect the gap between each of the pattern rollers and the transmission roller.

[0010] Optionally, the pole piece processing device further includes a photographing component, which is used to photograph and detect the pattern on the pole piece.

[0011] Optionally, the first drive assembly is arranged on the mounting frame, and the first drive assembly is connected to the transmission roller to drive and transport the pole piece; each of the patterned rollers is arranged around the circumference of the transmission roller, and the roller patterns of each of the patterned rollers are staggered with each other.

[0012] Optionally, the number of the mounting frame, the pattern roller, the first drive assembly and the transmission roller is at least two respectively, and each mounting frame is provided with a pattern roller, a first drive assembly and a transmission roller. The pattern roller and the transmission roller on the same mounting frame are arranged in parallel to form a pole piece processing station. The first drive assembly and the transmission roller on the same mounting frame are connected to each other to drive and transmit the pole piece, and the projections of the pattern rollers along the width direction of the pole piece are spliced in sequence.

[0013] Optionally, the pole piece processing device further includes a tensioning assembly and an adjustment assembly, wherein the tensioning assembly and the adjustment assembly are located between each of the mounting frames, the tensioning assembly is used to adjust the tension of the pole piece, and the adjustment assembly is used to adjust and limit the axial position of the pole piece relative to the pattern roller.

[0014] Optionally, the number of the transmission rollers and the number of the pattern rollers are equal and correspond one to one, the transmission rollers are arranged side by side, the pattern rollers are arranged side by side, and the projections of the pattern rollers along the width direction of the pole piece are spliced in sequence.

[0015] Optionally, the first driving assembly is connected to the transmission roller to drive and transport the pole piece; each of the patterned rollers is arranged around the circumference of the transmission roller, and each of the patterned rollers is spliced in sequence along the axial projection of the transmission roller.

[0016] In the pole piece processing device of the present invention, the preset pattern is embossed and spliced by multiple pattern rollers and transmission rollers, which can reduce the volume and length of a single pattern roller, thereby reducing the processing difficulty and installation difficulty of the pattern roller, and saving the manufacturing cost and maintenance cost of the pattern roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of the electrode processing device in Example 1 of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of the preset pattern in Example 1 of the present utility model;

[0020] Figure 3 This is a structural schematic diagram of another embodiment of the electrode processing device in Example 1 of the present utility model;

[0021] Figure 4 This is a structural diagram of another embodiment of the electrode processing device in Example 1 of the present utility model;

[0022] Figure 5 This is a structural diagram of another embodiment of the electrode processing device in Example 1 of the present utility model;

[0023] Figure 6 This is a schematic structural diagram of a pole piece processing device in Example 2 of the present utility model;

[0024] Figure 7 This is a schematic structural diagram of a pole piece processing device in Example 3 of the present utility model;

[0025] Figure 8 This is a diagram showing the connection relationship between the pattern roller and the transmission roller in Example 3 of the present utility model;

[0026] Figure 9 This is a structural diagram of the electrode processing device in Example 4 of the present utility model.

[0027] Description of Figure Numbers:

[0028] 100. Pole piece processing device; 10. Mounting frame; 20. Drive roller; 30. Pattern roller; 32. Roller pattern; 40. Tensioning assembly; 50. Adjustment assembly; 52. Adjustment roller; 54. Adjustment plate; 60. Second drive assembly; 70. Shooting assembly; 80. Spacing detection assembly; 90. Pressure detection assembly; 101. Pole piece processing station; 200. Pole piece; 300. Preset pattern; 310. Pattern.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0033] Example 1

[0034] Please refer to Figure 1 and Figure 2 , Figure 1 This is a structural diagram of the electrode processing device in Example 1 of the present utility model. Figure 2 This is a schematic diagram of the structure of the preset pattern in Example 1 of the present utility model, wherein Figure 2 The direction indicated by the arrow A is the transmission direction of the electrode 200. An embodiment of the present invention provides a electrode processing device 100, comprising a mounting frame 10, a transmission roller 20, a first drive assembly (not shown in the figure) and at least two pattern rollers 30; each pattern roller 30 and the transmission roller 20 are rotatably mounted on the mounting frame 10, each pattern roller 30 and the transmission roller 20 are arranged in parallel, and a electrode processing station 101 is formed between each pattern roller 30 and the transmission roller 20, and the first drive assembly is used to drive the electrode 200 so that the electrode 200 passes through each electrode processing station 101 in sequence. When the electrode 200 passes through the corresponding electrode processing station 101, each pattern roller 30 imprints a pattern 310 of a corresponding segment on the electrode 200, and the patterns 310 imprinted by each pattern roller 30 are spliced in sequence to form a preset pattern 300.

[0035] In the electrode processing device 100 of this embodiment, the mounting frame 10 is used to install the transmission roller 20 and the pattern roller 30. It can be understood that the shape and form of the mounting frame 10 can be set according to the needs of the user. For example, the mounting frame 10 can be a frame structure, and the mounting frame 10 can also be a certain station in the processing site, that is, the pattern roller 30 and the transmission roller 20 can be directly installed at this station. The first drive assembly is used to drive the transmission electrode 200. Specifically, the first drive assembly can be a pair of rollers, and the pair of rollers can directly act on the electrode 200, thereby driving the electrode 200 to be transmitted between each electrode processing station 101. Alternatively, the first drive assembly can be a motor, and the motor is used to drive the transmission roller 20 to rotate. When the electrode 200 is inserted into the electrode processing station 101, the transmission roller 20 drives the electrode 200 to be transmitted under the drive of the motor. During the transmission of the pole piece 200, the pattern roller 30 and the transmission roller 20 rotate respectively, and the pattern roller 30 and the transmission roller 20 also squeeze the pole piece 200. Each pattern roller 30 embosses a pattern 310 of a corresponding segment on the pole piece 200. In this way, the patterns 310 embossed by each pattern roller 30 are spliced in sequence to form a preset pattern 300. The pattern 310 and the preset pattern 300 can be customized according to user needs.

[0036] In the pole piece processing device 100 of this embodiment, the preset pattern 300 is formed by stamping and splicing multiple pattern rollers 30 and transmission rollers 20. This can reduce the volume and length of a single pattern roller 30, thereby reducing the processing difficulty and installation difficulty of the pattern roller 30, and saving the manufacturing cost and maintenance cost of the pattern roller 30.

[0037] In one embodiment, the number of mounting frames 10, pattern rollers 30, first drive assemblies, and transmission rollers 20 is at least two, respectively. Each mounting frame 10 is equipped with a pattern roller 30, a first drive assembly, and a transmission roller 20. The pattern rollers 30 and transmission rollers 20 on the same mounting frame 10 are arranged in parallel and form a pole piece processing station 101. The first drive assembly and transmission roller 20 on the same mounting frame 10 are connected in a transmission manner to drive and transmit the pole pieces 200. The pattern rollers 30 are sequentially spliced along the width projection of the pole pieces 200. During processing, the pole pieces 200 are sequentially arranged between the pole piece processing stations 101. Each mounting frame 10 is equipped with a first drive assembly, a transmission roller 20, and a pattern roller 30. This arrangement facilitates the control and adjustment of each first drive assembly, each transmission roller 20, and each pattern roller 30, thereby ensuring more stable operation of the equipment. The first drive assembly is a motor.

[0038] In one embodiment, the pole piece processing device 100 further includes a tensioning assembly 40 and an adjustment assembly 50. The tensioning assembly 40 and the adjustment assembly 50 are located between each mounting frame 10. The tensioning assembly 40 is used to adjust the tension of the pole piece 200, and the adjustment assembly 50 is used to adjust and limit the axial position of the pole piece 200 relative to the pattern roller 30. The tensioning assembly 40 includes a tensioning roller, and the pole piece 200 is attached to the tensioning roller. When the position of the tensioning roller is adjusted, the tension of the pole piece 200 can be adjusted. The adjustment assembly 50 includes an adjustment roller 52 and an adjustment plate 54. The pole piece 200 is attached to the adjustment roller 52. When the adjustment plate 54 is adjusted along the axial direction of the adjustment roller 52, the pole piece 200 can be adjusted axially relative to each pattern roller 30, making adjustment convenient.

[0039] In one embodiment, the electrode processing device 100 further includes a second drive assembly 60, which is disposed on the mounting frame 10. The second drive assembly 60 is connected to the pattern roller 30 by a transmission mechanism to drive the pattern roller 30 toward or away from the transmission roller 20. The second drive assembly 60 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. The second drive assembly 60 can drive the pattern roller 30 to move so that the pattern roller 30 moves toward or away from the transmission roller 20. When the pattern roller 30 moves toward or away from the transmission roller 20, the pattern 310 can be embossed on the electrode 200. When the pattern roller 30 moves away from the transmission roller 20, the electrode 200 can be placed in the electrode processing station 101, which is convenient for operation.

[0040] Please refer to Figure 3 If a problem occurs during the processing of the pole piece 200, it is difficult to detect the abnormality in time. In one embodiment, the pole piece processing device 100 further includes a shooting component 70, which is used to shoot and detect the pattern 310 on the pole piece 200. The shooting component 70 can be a CCD camera, which can shoot the pole piece 200 during processing. The user analyzes the depth of the pattern 310 imprint through the photographed photos, and then analyzes whether there is an abnormality in the processing of the pole piece 200. Abnormalities occurring during the processing of the pole piece 200 can be detected in time, and the detection accuracy is high and the detection method is relatively intuitive.

[0041] Please refer to Figure 4 In one embodiment, the electrode processing device 100 further includes a pressure detection assembly 90, which is disposed between the second drive assembly 60 and the pattern roller 30. The pressure detection assembly 90 includes a pressure sensor for detecting the pressure applied by the second drive detection assembly to the pattern roller 30. Generally speaking, the magnitude of the pressure is directly proportional to the depth of the pattern 310. By analyzing the magnitude of the pressure, the user can determine the depth of the pattern 310 of the electrode 200 and determine whether the electrode 200 is qualified. This detection method is convenient, saves time, and is easy to install.

[0042] Please refer to Figure 5In one embodiment, the pole piece processing device 100 further includes a spacing detection component 80, which is used to detect the gap between each pattern roller 30 and the transmission roller 20. The detection component includes a distance sensor, which is used to detect the gap between the pattern roller 30 and the transmission roller 20. Generally speaking, the gap between the pattern roller 30 and the transmission roller 20 is inversely proportional to the depth of the pattern roller 30. Therefore, by analyzing the size of the detection, the user can analyze the depth of the pattern 310 of the pole piece 200 and determine whether the pole piece 200 is qualified. This detection method is more convenient, can save time, and is easier to install.

[0043] Example 2

[0044] Please refer to Figure 6 , the difference between this embodiment and embodiment 1 is that: the number of drive rollers 20 and the number of pattern rollers 30 are equal and correspond one to one, the drive rollers 20 are arranged side by side, the pattern rollers 30 are arranged side by side, and the pattern rollers 30 are spliced in sequence along the projections in the width direction of the pole piece 200. Among them, the first driving component can be a pair of rollers, and the pair of rollers is used to drive the pole piece 200 for transmission. Each pattern roller 30 respectively embosses a pattern 310 on the pole piece 200, and each pattern 310 is spliced into a preset pattern 300. Theoretically, there is no upper limit to the number of pattern rollers 30 in the pole piece processing device 100 of this embodiment, so that pole pieces 200 with a larger width can be processed with good integration.

[0045] Example 3

[0046] Please refer to Figure 7 and Figure 8 The difference between this embodiment and embodiment 1 is that: the first drive assembly is arranged on the mounting frame 10, and the first drive assembly is connected to the transmission roller 20 by transmission to drive the conveying electrode 200; each pattern roller 30 is arranged around the circumference of the transmission roller 20, and the roller patterns 32 of each pattern roller 30 are staggered with each other. Among them, the first drive assembly can be a motor. The electrode processing device 100 of this embodiment has good integration, a relatively compact structure, and reasonable space utilization. The density requirement for the roller patterns 32 on the pattern roller 30 is relatively low, which can further reduce the processing difficulty of the pattern roller 30.

[0047] Example 4

[0048] Please refer to Figure 9The difference between this embodiment and embodiment 1 is that the first drive assembly is connected to the transmission roller 20 to drive the electrode 200; each pattern roller 30 is arranged around the circumference of the transmission roller 20, and each pattern roller 30 is spliced in sequence along the axial projection of the transmission roller 20. Among them, the first drive assembly can be a motor. The electrode processing device 100 of this embodiment has better integration, a more compact structure, and reasonable space utilization. In addition, the controllability of the pattern roller 30 is better, which facilitates the control and adjustment of the pattern roller 30 and can reduce the processing difficulty of the pattern roller 30.

[0049] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pole piece processing device, characterized in that: It includes a mounting frame, a transmission roller, a first driving assembly and at least two pattern rollers; Each of the pattern rollers and the transmission rollers is rotatably mounted on the mounting frame, and each of the pattern rollers and the transmission rollers is arranged in parallel. A pole piece processing station is formed between each of the pattern rollers and the transmission rollers. The first driving assembly is used to drive and transport the pole piece so that the pole piece passes through each of the pole piece processing stations in sequence. Each of the pattern rollers imprints a pattern of a corresponding section on the pole piece when the pole piece passes through the corresponding pole piece processing station. The patterns imprinted by each of the pattern rollers are spliced in sequence to form a preset pattern.

2. The electrode processing device according to claim 1, characterized in that: It also includes a second driving component, which is arranged on the mounting frame and is connected to the pattern roller for driving the pattern roller to move closer to or away from the driving roller.

3. The electrode processing device according to claim 2, characterized in that: It also includes a pressure detection component, which is arranged between the second driving component and the pattern roller.

4. The electrode processing device according to claim 1, characterized in that: It also includes a spacing detection component, which is used to detect the gap between each pattern roller and the transmission roller.

5. The electrode processing device according to claim 1, characterized in that: It also includes a shooting component, which is used to shoot and detect the pattern on the pole piece.

6. The electrode processing device according to any one of claims 1 to 5, characterized in that: The first driving assembly is arranged on the mounting frame, and the first driving assembly is connected to the transmission roller to drive and transport the pole piece; each of the patterned rollers is arranged around the circumference of the transmission roller, and the roller patterns of each of the patterned rollers are staggered with each other.

7. The electrode processing device according to any one of claims 1 to 5, characterized in that: The number of the mounting frame, the pattern roller, the first drive assembly and the transmission roller is at least two respectively. Each mounting frame is provided with a pattern roller, a first drive assembly and a transmission roller. The pattern roller and the transmission roller on the same mounting frame are arranged in parallel to form a pole piece processing station. The first drive assembly and the transmission roller on the same mounting frame are connected in transmission to drive and transmit the pole piece. The projections of the pattern rollers along the width direction of the pole piece are spliced in sequence.

8. The electrode processing device according to claim 7, characterized in that: It also includes a tensioning assembly and an adjusting assembly, wherein the tensioning assembly and the adjusting assembly are located between each of the mounting frames, the tensioning assembly is used to adjust the tension of the pole piece, and the adjusting assembly is used to adjust and limit the axial position of the pole piece relative to the pattern roller.

9. The electrode processing device according to any one of claims 1 to 5, characterized in that: The number of the transmission rollers is equal to and corresponds to the number of the pattern rollers. The transmission rollers are arranged side by side, the pattern rollers are arranged side by side, and the pattern rollers are sequentially spliced along the projections in the width direction of the pole piece.

10. The electrode processing device according to any one of claims 1 to 5, characterized in that: The first driving assembly is connected to the transmission roller to drive and transport the pole piece; each of the patterned rollers is arranged around the circumference of the transmission roller, and each of the patterned rollers is spliced in sequence along the axial projection of the transmission roller.

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