Electrode film trimming device

Abstract

This utility model relates to an electrode film trimming device. The electrode film trimming device includes: a base fixed to a work platform; a film conveying mechanism fixed to the side of the base away from the work platform; a trimming mechanism located on the side of the film conveying mechanism away from the base, configured to trim the electrode film; an edge processing mechanism located downstream of the trimming mechanism along the electrode film conveying direction, configured to polish the trimmed edges of the electrode film; and a film positioning mechanism located on the side of the film conveying mechanism away from the base, configured to adjust and / or fix the position of the electrode film. The above-mentioned electrode film trimming device integrates the film conveying mechanism, trimming mechanism, edge processing mechanism, and film positioning mechanism, significantly improving the trimming quality and efficiency of dry-process electrode films, meeting the high-quality requirements of dry-process electrode production, and facilitating widespread application.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to an electrode film trimming device. Background Technology

[0002] During the production of dry electrode films, uneven edges, inconsistent thickness, and excess material buildup are common problems that affect the assembly quality of subsequent electrodes and battery performance. Therefore, high-precision edge trimming of dry electrode films is crucial. However, existing trimming devices have shortcomings in terms of trimming accuracy, film fixation stability, and trimming efficiency, making it difficult to meet the increasingly stringent quality requirements of dry electrode production. Utility Model Content

[0003] Therefore, it is necessary to provide an electrode film edge trimming device to address the issue of how to improve the edge trimming quality and efficiency of dry electrode films.

[0004] An electrode film trimming device, comprising:

[0005] The base is fixed to the work platform;

[0006] A diaphragm conveying mechanism is fixed to the side of the base away from the working platform and is used to convey electrode diaphragms;

[0007] An edge-trimming mechanism is located on the side of the diaphragm conveying mechanism away from the base and is configured to trim the electrode diaphragm.

[0008] An edge processing mechanism is located downstream of the edge cutting mechanism along the electrode film conveying direction and is configured to grind the edges of the electrode film after edge cutting.

[0009] A diaphragm positioning mechanism is located on the side of the diaphragm conveying mechanism away from the base and is configured to adjust and / or fix the position of the electrode diaphragm.

[0010] The electrode film trimming device of this utility model integrates a film conveying mechanism, a trimming mechanism, an edge processing mechanism, and a film positioning mechanism. It can accurately adjust and fix the film position, effectively control the trimming accuracy and depth, and improve the edge quality of the film. Overall, it greatly improves the trimming quality and efficiency of dry electrode films, meets the high-quality requirements of dry electrode production, and is conducive to widespread application.

[0011] In one embodiment, the diaphragm delivery mechanism includes:

[0012] Two conveyor rollers are spaced apart along the conveying direction of the electrode diaphragm.

[0013] A tension roller, disposed between the two conveyor rollers, is used to adjust the tension of the conveyor belt;

[0014] A conveyor belt is fitted over the outside of the conveyor roller and the tension roller;

[0015] A conveyor roller drive unit is connected to the conveyor roller drive.

[0016] In one embodiment, the surface of the conveyor belt is provided with a plurality of vacuum adsorption holes.

[0017] In one embodiment, the trimming mechanism includes:

[0018] Mounting brackets are arranged on both sides of the membrane conveying mechanism along the electrode membrane conveying direction;

[0019] The mounting plate is disposed on the side of the mounting frame near the diaphragm conveying mechanism;

[0020] The mounting plate driver is fixed on the mounting bracket, and its output end is fixedly connected to the mounting plate.

[0021] The cutting blade is connected to the mounting plate.

[0022] In one embodiment, the trimming mechanism further includes a trimming depth adjustment component, the trimming depth adjustment component comprising:

[0023] An adjusting screw is disposed in the mounting plate along the direction perpendicular to the electrode film conveying direction, and the bottom end of the adjusting screw is fixedly connected to the cutting blade;

[0024] A nut is fitted over the adjusting screw and is connected to the adjusting screw.

[0025] In one embodiment, the cutting mechanism further includes a cutting blade cleaning assembly, the cutting blade cleaning assembly comprising:

[0026] The nozzle is positioned toward the cutting blade;

[0027] The storage tank is connected to the nozzle.

[0028] In one embodiment, the edge processing mechanism includes:

[0029] A grinding wheel, wherein a flexible grinding layer is provided on the surface of the grinding wheel;

[0030] A grinding wheel drive component is connected to the grinding wheel drive.

[0031] In one embodiment, the diaphragm positioning mechanism includes:

[0032] A lateral positioning component is configured to position the electrode diaphragm along its conveying direction;

[0033] A longitudinal positioning component is configured to press and position the electrode diaphragm along a direction perpendicular to its transport direction.

[0034] In one embodiment, the lateral positioning component includes:

[0035] Positioning baffles are disposed on both sides of the diaphragm conveying mechanism;

[0036] A positioning baffle driver is connected to the positioning baffle driver.

[0037] In one embodiment, the longitudinal positioning component includes:

[0038] A positioning pressure plate is disposed on the side of the diaphragm conveying mechanism away from the base;

[0039] A positioning pressure plate drive component is connected to the positioning pressure plate drive. Attached Figure Description

[0040] Figure 1 This is a first schematic diagram of an electrode film trimming device according to an embodiment of the present invention;

[0041] Figure 2 This is a second schematic diagram of an electrode film trimming device according to an embodiment of the present invention;

[0042] Figure 3 This is a third schematic diagram of an electrode film trimming device according to an embodiment of the present invention;

[0043] Figure 4 This is a fourth schematic diagram of the electrode film trimming device according to one embodiment of the present invention;

[0044] Figure 5 for Figure 2 A magnified view of the area marked by the middle dashed line;

[0045] Figure 6 for Figure 3 A magnified view of the area marked by the middle dashed line;

[0046] Figure 7 for Figure 4 A magnified view of the area marked by the dashed line.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100. Electrode diaphragm trimming device;

[0049] 110. Base;

[0050] 120. Diaphragm conveying mechanism; 121. Conveyor roller; 122. Conveyor belt; 123. Tensioning roller;

[0051] 130. Edge trimming mechanism; 131. Mounting bracket; 132. Mounting plate; 133. Mounting plate drive; 134. Edge trimming blade; 135. Edge trimming depth adjustment assembly; 1351. Adjusting screw; 1352. Nut; 136. Edge trimming blade cleaning assembly; 1361. Nozzle; 1362. Storage tank.

[0052] 140. Edge processing mechanism; 141. Grinding wheel; 142. Grinding wheel drive component;

[0053] 150. Diaphragm positioning mechanism; 151. Lateral positioning assembly; 1511. Positioning baffle; 1512. Positioning baffle driver; 152. Longitudinal positioning assembly; 1521. Positioning pressure plate; 1522. Positioning pressure plate driver. Detailed Implementation

[0054] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0055] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] Please see Figures 1-4 The electrode film trimming device 100 of one embodiment of the present invention includes a base 110, a film conveying mechanism 120, a trimming mechanism 130, an edge processing mechanism 140, and a film positioning mechanism 150.

[0058] The base 110 is fixed on the working platform and is used to support components such as the diaphragm conveying mechanism 120, the edge cutting mechanism 130, the edge processing mechanism 140, and the diaphragm positioning mechanism 150.

[0059] The diaphragm conveying mechanism 120 is fixed to the side of the base 110 away from the working platform and is used to convey electrode diaphragms.

[0060] The edge-cutting mechanism 130 is located on the side of the membrane conveying mechanism 120 away from the base 110 and is configured to perform edge-cutting processing on the electrode membrane. Specifically, when the electrode membrane edge-cutting device 100 of this embodiment is used to cut the electrode membrane, the edge-cutting mechanism 130 is located above the membrane conveying mechanism 120.

[0061] The edge processing mechanism 140 is located downstream of the edge trimming mechanism 130 along the electrode film conveying direction and is configured to polish the edges of the electrode film after trimming. After the electrode film has been trimmed, the edge processing mechanism 140 polishes the edges of the electrode film, which can remove burrs and make the edges of the electrode film smooth.

[0062] The diaphragm positioning mechanism 150 is located on the side of the diaphragm conveying mechanism 120 away from the base 110 and is configured to adjust and / or fix the position of the electrode diaphragm. Specifically, when the electrode diaphragm trimming device 100 of this embodiment is used to adjust and / or fix the position of the electrode diaphragm, the diaphragm positioning mechanism 150 is located above the diaphragm conveying mechanism 120, and the diaphragm positioning mechanism 150 can accurately fix the position of the electrode diaphragm.

[0063] The electrode film trimming device 100 of this embodiment integrates a film conveying mechanism 120, a trimming mechanism 130, an edge processing mechanism 140, and a film positioning mechanism 150. It can accurately fix the film position, effectively control the trimming accuracy and depth, improve the film edge quality, and greatly improve the trimming quality and efficiency of dry electrode films. It meets the high-quality requirements of dry electrode production and is conducive to widespread application.

[0064] Based on the aforementioned implementation methods, please combine with Figure 5The diaphragm conveying mechanism 120 includes a conveyor roller 121, a tension roller 123, a conveyor belt 122, and a conveyor roller drive (not shown). Two conveyor rollers 121 are arranged at intervals along the electrode diaphragm conveying direction (i.e., the first direction). The tension roller 123 is disposed between the two conveyor rollers 121 and is used to adjust the tension of the conveyor belt 122. The conveyor belt 122 is sleeved on the outside of the conveyor rollers 121 and the tension roller 123 for conveying the electrode diaphragm. The conveyor roller drive is driven by the conveyor rollers 121 and is used to drive the conveyor rollers 121 to rotate. In this embodiment, a conveyor motor is used as the conveyor roller drive; this is merely an example and not a limitation, and can be configured according to actual needs. The diaphragm conveying mechanism 120 of this embodiment helps improve the stability of electrode diaphragm conveying and further ensures the high efficiency and high precision of the edge trimming process.

[0065] Based on the aforementioned embodiments, the surface of the conveyor belt 122 is provided with a plurality of vacuum adsorption holes (not shown) for adsorbing electrode films. This invention does not limit the size, number, or distribution of the vacuum adsorption holes; they can be set according to actual needs, and a uniform distribution is preferred.

[0066] Based on the aforementioned implementation methods, please combine with Figure 6 The edge-cutting mechanism 130 includes a mounting frame 131, a mounting plate 132, a mounting plate drive 133, and an edge-cutting blade 134. The mounting frame 131 is disposed on both sides of the electrode film conveying mechanism 120 along the electrode film conveying direction (i.e., the second direction). The mounting plate 132 is disposed on the side of the mounting frame 131 near the electrode film conveying mechanism 120, and further, the mounting plate 132 can move perpendicular to the electrode film conveying direction (i.e., the second direction). The mounting plate drive 133 is fixed to the mounting frame 131, and its output end is fixedly connected to the mounting plate 132 for driving the mounting plate 132. The edge-cutting blade 134 is connected to the mounting plate 133. Therefore, the mounting plate drive 133 can be used to control the lateral position of the edge-cutting blade 134. Furthermore, the edge-cutting blade 134 has high hardness and wear resistance, ensuring the accuracy of edge cutting and the blade life. It should be noted that the use of a driving cylinder as the mounting plate drive in this embodiment is merely an example and not a limitation; it can be configured according to actual needs.

[0067] Based on the aforementioned implementation methods, please combine with Figure 6The trimming mechanism 130 also includes a trimming depth adjustment assembly 135, which includes an adjusting screw 1351 and a nut 1352. The adjusting screw 1351 is disposed in the mounting plate 132 along the direction perpendicular to the electrode film conveying direction (i.e., the third direction), and its bottom end is fixedly connected to the trimming blade 134. The nut 1352 is sleeved on the adjusting screw 1351 and engages with it to fix the position of the adjusting screw 1351. The vertical height of the trimming blade 134 can be precisely adjusted by rotating the adjusting screw 1351, thereby controlling the trimming depth.

[0068] Based on the aforementioned implementation methods, please combine with Figure 6 The edge-cutting mechanism 130 also includes an edge-cutting blade cleaning assembly 136 disposed on one side of the edge-cutting blade 134. The edge-cutting blade cleaning assembly 136 includes a nozzle 1361 and a storage tank 1362. The nozzle 1361 faces the edge-cutting blade 134. The storage tank 1362 may contain compressed gas or cleaning liquid, and compressed air may be selected as an example, not a limitation. It can also be set according to actual needs. The edge-cutting blade 134 can be cleaned periodically during the edge-cutting process to prevent the membrane material adhering to the edge-cutting blade 134 from affecting the edge-cutting accuracy.

[0069] Based on the aforementioned implementation methods, please combine with Figure 6 The edge processing mechanism 140 includes a grinding wheel 141 and a grinding wheel drive 142. The grinding wheel 141 has a flexible grinding layer on its surface for grinding the edges of the trimmed electrode film, removing burrs and smoothing the edges. The grinding wheel 141 is positioned downstream of the trimming mechanism 130 along the conveying direction of the electrode film. The grinding wheel drive 142 is driven by the grinding wheel 141. It should be noted that this embodiment uses a grinding motor as the grinding wheel drive, which is merely an example and not a limitation; it can be configured according to actual needs.

[0070] Furthermore, in the electrode film trimming device 100 of this embodiment, trimming mechanism 130 and edge processing mechanism 140 are provided on both sides of the electrode film. This allows for simultaneous trimming and edge polishing of both edges of the electrode film, which helps to improve the efficiency of the trimming process.

[0071] Based on the aforementioned implementation methods, please combine with Figure 7The diaphragm positioning mechanism 150 includes a lateral positioning component 151 and a longitudinal positioning component 152. The lateral positioning component 151 is configured to adjust and position the electrode diaphragm along its transport direction (i.e., a first direction); the longitudinal positioning component 152 is configured to press and position the electrode diaphragm along a direction perpendicular to its transport direction (i.e., a third direction). The lateral positioning component 151 and the longitudinal positioning component 152 can adjust and position the electrode diaphragm in both lateral and longitudinal directions, thereby accurately fixing the diaphragm position.

[0072] Based on the aforementioned implementation methods, please combine with Figure 7 The lateral positioning component 151 includes positioning baffles 1511 respectively disposed on both sides of the diaphragm conveying mechanism 120, and a positioning baffle driving member 1512 motively connected to the positioning baffles 1511. The positioning baffle driving member 1512 can drive the positioning baffles 1511 to move, thereby realizing the lateral adjustment and positioning of the electrode diaphragm and improving the accuracy of fixing the diaphragm position. It should be noted that the use of a driving cylinder as the positioning baffle driving member in this embodiment is only an example and not a limitation; it can also be set according to actual needs.

[0073] Based on the aforementioned implementation methods, please combine with Figure 7 The longitudinal positioning component 152 includes a positioning pressure plate 1521 disposed on the side of the diaphragm conveying mechanism 120 away from the base 110, and a positioning pressure plate driving member 1522 motive-connected to the positioning pressure plate 1521. The positioning pressure plate driving member 1522 can drive the positioning pressure plate 1521 to move, thereby pressing and positioning the electrode diaphragm longitudinally, ensuring the accuracy of the diaphragm's position during the edge cutting process. It should be noted that the use of a driving cylinder as the positioning baffle driving member in this embodiment is merely an example and not a limitation; it can be configured according to actual needs.

[0074] This invention uses a membrane positioning mechanism with the above-described structure to precisely fix the position of the membrane. The high-precision cutting blade of the cutting mechanism combined with the cutting depth adjustment component can effectively control the cutting accuracy and depth. The edge processing mechanism can improve the quality of the membrane edge. Furthermore, the stable conveying mechanism and the cutting blade cleaning component further ensure the high efficiency and high precision of the cutting process. Overall, it greatly improves the cutting quality and production efficiency of dry electrode membranes, meeting the high-quality requirements of dry electrode production.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electrode diaphragm trimming device, characterized in that, include: The base is fixed to the work platform; A diaphragm conveying mechanism is fixed to the base on the side away from the working platform; An edge-trimming mechanism is located on the side of the diaphragm conveying mechanism away from the base and is configured to trim the electrode diaphragm. An edge processing mechanism is located downstream of the edge cutting mechanism along the electrode film conveying direction and is configured to grind the edges of the electrode film after edge cutting. A diaphragm positioning mechanism is located on the side of the diaphragm conveying mechanism away from the base and is configured to adjust and / or fix the position of the electrode diaphragm.

2. The electrode diaphragm trimming device according to claim 1, characterized in that, The diaphragm delivery mechanism includes: Two conveyor rollers are spaced apart along the conveying direction of the electrode diaphragm. A tensioning roller is disposed between the two conveying rollers; A conveyor belt is fitted over the outside of the conveyor roller and the tension roller; A conveyor roller drive unit is connected to the conveyor roller drive.

3. The electrode diaphragm trimming device according to claim 2, characterized in that, The conveyor belt surface is provided with multiple vacuum adsorption holes.

4. The electrode diaphragm trimming device according to claim 1, characterized in that, The trimming mechanism includes: Mounting brackets are arranged on both sides of the membrane conveying mechanism along the electrode membrane conveying direction; The mounting plate is disposed on the side of the mounting frame near the diaphragm conveying mechanism; The mounting plate driver is fixed on the mounting bracket, and its output end is fixedly connected to the mounting plate. The cutting blade is connected to the mounting plate.

5. The electrode film trimming device according to claim 4, characterized in that, The trimming mechanism further includes a trimming depth adjustment component, which includes: An adjusting screw is disposed in the mounting plate along the direction perpendicular to the electrode film conveying direction, and the bottom end of the adjusting screw is fixedly connected to the cutting blade; A nut is fitted over the adjusting screw and is connected to the adjusting screw.

6. The electrode film trimming device according to claim 4, characterized in that, The edge-cutting mechanism further includes an edge-cutting blade cleaning assembly, which includes: The nozzle is positioned toward the cutting blade; The storage tank is connected to the nozzle.

7. The electrode diaphragm trimming device according to claim 1, characterized in that, The edge processing mechanism includes: A grinding wheel, wherein a flexible grinding layer is provided on the surface of the grinding wheel; A grinding wheel drive component is connected to the grinding wheel drive.

8. The electrode diaphragm trimming device according to claim 1, characterized in that, The diaphragm positioning mechanism includes: A lateral positioning component is configured to position the electrode diaphragm along its conveying direction; A longitudinal positioning component is configured to press and position the electrode diaphragm along a direction perpendicular to its transport direction.

9. The electrode diaphragm trimming device according to claim 8, characterized in that, The lateral positioning component includes: Positioning baffles are disposed on both sides of the diaphragm conveying mechanism; A positioning baffle driver is connected to the positioning baffle driver.

10. The electrode diaphragm trimming device according to claim 8, characterized in that, The longitudinal positioning component includes: A positioning pressure plate is disposed on the side of the diaphragm conveying mechanism away from the base; A positioning pressure plate drive component is connected to the positioning pressure plate drive.

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