Battery pole piece slitting device

Abstract

The utility model relates to the technical field of slitting equipment, in particular to a battery pole piece slitting device which comprises an equipment body and further comprises a deviation rectifying mechanism, an unwinding mechanism, a tape splicing mechanism, a cutting mechanism, a powder removing mechanism and a slip frequency winding mechanism which are sequentially arranged on the equipment body. The powder removing mechanism comprises a supporting frame, the supporting frame is slidably connected with a lifting seat, the lifting seat is rotatably connected with a first brush roller and a second brush roller, the first brush roller and the second brush roller are embedded with each other, and the rotating direction of the first brush roller and the rotating direction of the second brush roller are opposite to the feeding direction; the slip frequency winding mechanism comprises a deflector roller rotationally connected to the equipment body and a plurality of winding slip frequency shafts. The cut pole piece enters the powder removing mechanism, and dust of the pole piece can be cleaned through rotation of a first brush roller and a second brush roller; and the rotation direction of the first brush roller and the second brush roller is opposite to the feeding direction, so that the cleaning effect on the pole piece can be improved, and the winding quality of the pole piece is guaranteed.

Description

Technical Field

[0001] This application relates to the field of slitting equipment technology, and in particular to a battery electrode slitting device. Background Technology

[0002] With the rapid development of new energy vehicles, the demand for high-performance power battery electrodes is increasing, and higher requirements are being placed on their manufacturing processes and processing precision. In the front-end manufacturing process of electrodes, it is necessary to slit the electrode sheet roll, cutting electrode sheets of a certain width into specified widths in the longitudinal direction.

[0003] During transportation and storage, electrode sheet rolls typically accumulate dust and debris. Traditional battery electrode sheet slitting equipment, after slitting the electrode sheets, easily traps this dust and debris within the sheet roll during the winding process, affecting production quality and reducing the electrode sheet yield. Utility Model Content

[0004] In order to improve the problem of dust and debris being easily entangled in battery electrode cutting equipment in related technologies, this utility model provides a battery electrode cutting device.

[0005] A battery electrode slitting device includes a main body and a correction mechanism, an unwinding mechanism, a tape splicing mechanism, a cutting mechanism, a powder removal mechanism, and a differential winding mechanism sequentially arranged on the main body. The powder removal mechanism includes a support frame, a lifting seat slidably connected to the support frame, and a first brush roller and a second brush roller rotatably connected to the lifting seat. The first brush roller and the second brush roller are interlocked, and the rotation direction of the first brush roller and the second brush roller is opposite to the feeding direction. The differential winding mechanism includes a guide roller rotatably connected to the main body and a plurality of winding differential shafts.

[0006] Furthermore, the first brush roller is provided with a plurality of first bristles along its length direction, and the second brush roller is provided with a plurality of second bristles along its length direction. The first bristles and the second bristles are interlocked with each other, with an interlocking depth of 2-3 mm.

[0007] Furthermore, the first brush roller and the second brush roller are coiled with bristles; the first bristles and the second bristles are made of soft nylon.

[0008] Furthermore, the differential winding mechanism also includes a hydraulic cylinder disposed on the main body of the equipment, with one end of the winding differential shaft passing through the main body of the equipment and then disposed on the hydraulic cylinder.

[0009] Furthermore, the take-up differential shaft is provided with a plurality of differential rings evenly arranged along its length, and the differential rings are rotatably connected to the take-up differential shaft.

[0010] Furthermore, it also includes a detection mechanism disposed between the dust removal mechanism and the slip winding mechanism. The detection mechanism includes a movable base structure disposed on the main body of the equipment. The movable base structure is provided with a detection light source and a position control detector for cooperating with the detection light source. The detection light source is oriented towards the position control detector.

[0011] Furthermore, the movable seat structure includes an upper movable seat and a lower movable seat; the upper movable seat includes a C-shaped frame, the C-shaped frame is slidably connected to a connecting seat, and the C-shaped frame is provided with a hydraulic rod for driving the connecting seat; the detection light source is disposed on the connecting seat.

[0012] Furthermore, the detection mechanism also includes a center position detector disposed on the main body of the equipment, the center position detector being located between the take-up slip shafts.

[0013] This utility model has the following advantages:

[0014] 1. A battery electrode sheet slitting device of this utility model, wherein when the slitting device is running, the electrode sheet roll is placed on the unwinding roller for unwinding, the correction mechanism operates to correct the deviation of the electrode sheet, the corrected electrode sheet is connected to the previous electrode sheet roll by the connecting mechanism, the connected electrode sheet roll enters the cutting mechanism for cutting; the cut electrode sheet enters the dust removal mechanism, the dust on the electrode sheet can be cleaned by the rotation of the first brush roller and the second brush roller; the rotation of the first brush roller and the second brush roller is opposite to the feeding direction, which can improve the cleaning effect on the electrode sheet; the electrode sheet after dust removal is engaged on the take-up slip shaft by the guide roller and the take-up slip shaft rotates to complete the take-up operation. The take-up slip shaft can be adjusted by the slip function to make the take-up of the electrode sheet uniform, thereby ensuring the take-up quality of the electrode sheet.

[0015] 2. The battery electrode cutting device of this utility model is further provided with a detection mechanism. By using the detection light source of the detection mechanism in conjunction with the position control detector, the position of the electrode material can be obtained between the powder removal mechanism and the differential winding mechanism. The position of the winding differential shaft is adjusted according to the position of the material to ensure that the material can be wound into the winding differential shaft in a precise direction, thereby ensuring the winding quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of a battery electrode cutting device according to an embodiment of this application;

[0018] Figure 2 This is another structural schematic diagram of a battery electrode cutting device according to an embodiment of this application;

[0019] Figure 3 This is a top view schematic diagram of a battery electrode cutting device according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the detection structure in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Main body of the equipment; 2. Correction mechanism; 3. Unwinding mechanism; 31. Unwinding roller; 32. Limiting roller; 4. Belt connection mechanism; 41. Belt connection platform; 5. Cutting mechanism; 51. Cutting roller; 6. Dust removal mechanism; 61. Support frame; 62. Lifting seat; 63. First brush roller; 64. Second brush roller; 7. Slip differential winding mechanism; 71. Deflector roller; 72. Winding slip differential shaft; 73. Hydraulic cylinder; 8. Detection mechanism; 81. Moving seat structure; 811. Upper moving seat; 8111. C-shaped frame; 8112. Connecting seat; 8113. Hydraulic rod; 812. Lower moving seat; 82. Detection light source; 83. Position control detector; 84. Center position detector. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] Reference Figure 1 , Figure 2 as well as Figure 3 A battery electrode sheet slitting device includes a main body 1, and further includes a correction mechanism 2, an unwinding mechanism 3, a splicing mechanism 4, a cutting mechanism 5, a dust removal mechanism 6, and a differential winding mechanism 7, which are sequentially arranged on the main body 1. When the battery electrode sheet slitting device is running, the unwinding mechanism 3 unwinds the electrode sheets, and simultaneously the correction mechanism 2 corrects the deviation of the electrode sheets. The corrected electrode sheets are then spliced ​​with the previous roll of electrode sheet material by the splicing mechanism 4. The spliced ​​electrode sheet roll then enters the cutting mechanism for cutting. The cut electrode sheets enter the dust removal mechanism 6. After dust removal, the electrode sheets enter the differential winding mechanism 7 for winding.

[0028] Specifically, the correction mechanism 2 is located on one side of the main body 1 and close to the unwinding mechanism 3. The correction mechanism 2 includes a single-sensor edge-finding correction mechanism, employing high-precision correction parameters with a correction accuracy of ±0.1mm and a correction stroke of ≥120mm. The single-sensor is adjusted by a screw and equipped with a digital display scale and a handle-type locking structure. The unwinding mechanism 3 includes an unwinding roller 31 and a limiting roller 32 rotatably connected to the main body 1. When the correction mechanism 2 is powered on, it can correct the deviation of the electrode roll placed on the unwinding roller 31. After passing through the limiting roller 32, the electrode roll is stably inserted into the tape-connecting mechanism 4.

[0029] The receiving mechanism 4 includes a receiving platform 41 fixedly connected to the main body 1. A cylinder is installed at the bottom of the receiving platform 41, which can raise and lower the receiving platform 41. The receiving platform 41 has a receiving groove, where the electrode roll is stably inserted after passing through the limiting roller 32, receiving it from the previous electrode roll. In this embodiment, the gap width of the receiving groove is 1mm, the depth is >10mm, and it is equipped with a scale. The reference scale of the scale corresponds to the cutting mechanism 5. The electrode roll exiting the receiving platform 41 is cut by the cutting mechanism 5, which includes several cutting rollers 51. In this embodiment, the cutting rollers 51 use single-axis drive and are divided into upper and lower cutting rollers. The position of the cutting rollers 51 is adjustable to accommodate materials of different specifications.

[0030] The dust removal mechanism 6 includes a support frame 61, which is slidably connected to a lifting seat 62. The lifting seat 62 can reciprocate vertically. The lifting seat 62 is rotatably connected to a first brush roller 63 and a second brush roller 64. The first brush roller 63 and the second brush roller 64 are interlocked, and their rotation direction is opposite to the feeding direction to improve cleaning efficiency. In this embodiment, the first brush roller 63 has a plurality of first bristles along its length, and the second brush roller 64 has a plurality of second bristles along its length. The first and second bristles are interlocked to a depth of 2-3 mm. The first and second brush rollers are coiled with bristles, resulting in a high bristle density to ensure effective dust removal. The first and second bristles are made of soft nylon to prevent excessive hardness from damaging the electrode roll material. The center distance between the first brush roller 63 and the second brush roller 64 is indicated by a scale. The first brush roller 63 can move up and down by 50mm relative to the second brush roller 64 to facilitate belt threading. The middle 10mm range can be precisely adjusted to facilitate dust removal effect adjustment. The brush speed range is 0 to 400r / min.

[0031] Reference Figure 3 as well as Figure 4The differential winding mechanism 7 includes a guide roller 71 rotatably connected to the main body 1 and several winding differential shafts 72. The electrode roll material, after passing through the dust removal mechanism 6, enters the winding differential shaft 72 after passing through the guide roller 71. Specifically, there are two winding differential shafts 72, located at the top and bottom respectively. Several differential rings are evenly arranged along the length of the winding differential shaft 72. The differential rings are rotatably connected to the winding differential shaft 72, ensuring that the multiple rolls of material on the shaft always maintain tension balance. The tension of the material is adjusted in real time during the winding process, resulting in better winding effect. Simultaneously, the differential winding mechanism 7 also includes a hydraulic cylinder 73 located on the main body 1. One end of the winding differential shaft 72 passes through the main body 1 and is positioned on the hydraulic cylinder 73. Driven by the hydraulic cylinder 73, the winding differential shaft 72 can extend and retract horizontally to adjust the differential rings and the electrode roll material for precise alignment.

[0032] In addition, the battery electrode slitting device also includes a detection mechanism 8 disposed between the powder removal mechanism 6 and the differential winding mechanism 7. The detection mechanism 8 includes a movable base structure 81 disposed on the main body 1 of the equipment. The movable base structure 81 is provided with a detection light source 82 and a position control detector 83 for cooperating with the detection light source 82. The detection light source 82 faces the position control detector 83. Specifically, the movable base structure 81 includes an upper movable base 811 and a lower movable base 812 symmetrically disposed with the upper movable base 811. The structure of the upper movable base 811 is the same as that of the lower movable base 812. Taking the upper movable base 811 as an example, the upper movable base 811 includes a C-shaped frame 8111. The C-shaped frame 8111 is slidably connected to a connecting seat 8112. The C-shaped frame 8111 is provided with a hydraulic rod 8113 for driving the connecting seat 8112. The detection light source 82 is disposed on the connecting seat 8112. The position of the detection light source 82 can be adjusted by moving the hydraulic rod 8113, so that the detection light source 82 follows the electrode roll and is always located at the bottom of the electrode roll. When the electrode roll passes by, it will block the detection light source 82. The position control detector 83 can know the specific position of each section of the electrode roll by monitoring the intensity and position of the received light source, and then drive the hydraulic cylinder 73 to move the winding slip shaft 72 to align with the electrode roll.

[0033] In addition, the detection mechanism 8 also includes a center position detector 84 disposed on the main body 1 of the equipment. The center position detector 84 is located between the two winding differential shafts 72. The center position detector 84 detects the position of the electrode roll on the differential ring to cooperate with the position control detector 83 to adjust the position of the winding differential shaft 72, so as to obtain higher precision position data and improve the control accuracy of the winding differential shaft 72.

[0034] The working principle of the battery electrode cutting device disclosed in this application is as follows: The electrode roll is placed on the unwinding roller 31 of the main body 1 of the equipment. During unwinding, the correction mechanism 2 operates to correct the deviation of the electrode roll. After correction, the electrode roll passes through the limiting roller 32, which supports and limits the electrode roll. The electrode roll is connected to the previous electrode roll via the connecting platform 41. After connection, the electrode roll enters the cutting mechanism 5 for cutting. The dust of the cut electrode roll is cleaned by the first brush roller 63 and the second brush roller 64. After dust removal, the electrode roll is engaged on the take-up differential shaft 72 by the guide roller 71 and can complete the take-up operation as the take-up differential shaft 72 rotates. During this process, the hydraulic rod 8113 moves the connecting seat 8112 within the guide rail set on the side of the C-frame 8111, thereby moving the detection light source 82 connected at the top. The electrically connected hydraulic rod 8113 controls the detection light source 82 to always move to the bottom of the electrode roll, and then controls the hydraulic cylinder 73 to adjust the position of the winding differential shaft 72. Multiple differential rings on the winding differential shaft 72 adjust the tension of the material, making the winding of the electrode roll neat and uniform, ensuring the winding quality and efficiency of the device.

[0035] 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.

[0036] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery electrode sheet slitting device comprising a device body (1), characterized in that, Further comprising a deviation rectifying mechanism (2), a unwinding mechanism (3), a tape receiving mechanism (4), a cutting mechanism (5), a powder removing mechanism (6) and a slip winding mechanism (7) arranged in sequence on the device body (1); the powder removing mechanism (6) comprises a support frame (61), the support frame (61) is slidingly connected with a lifting seat (62), the lifting seat (62) is rotatably connected with a first brush roller (63) and a second brush roller (64), the first brush roller (63) and the second brush roller (64) are mutually embedded, and the rotating directions of the first brush roller (63) and the second brush roller (64) are opposite to the feeding direction; the slip winding mechanism (7) comprises a deflector roller (71) and a plurality of winding slip shafts (72) rotatably connected to the device body (1).

2. The battery pole piece slitting device of claim 1, wherein, The first brush roller (63) is provided with a plurality of first bristles along the length direction thereof, the second brush roller (64) is provided with a plurality of second bristles along the length direction thereof, the first bristles and the second bristles are mutually embedded, and the embedding depth is 2-3mm.

3. The battery pole piece slitting device of claim 2, wherein, The first brush roller (63) and the second brush roller (64) are coiled type implanted hairs; the first bristles and the second bristles are soft nylon hairs.

4. The battery pole piece slitting device of claim 1, wherein, The slip winding mechanism (7) further comprises a hydraulic cylinder (73) arranged on the device body (1), and one end of the winding slip shaft (72) is arranged in the hydraulic cylinder (73) arranged on the device body (1).

5. The battery pole piece slitting device of claim 1, wherein, The winding slip shaft (72) is uniformly provided with a plurality of slip rings along the length direction thereof, and the slip rings are rotatably connected with the winding slip shaft (72).

6. The battery pole piece slitting device of any one of claims 1-5, wherein, Further comprising a detection mechanism (8) arranged between the powder removing mechanism (6) and the slip winding mechanism (7), the detection mechanism (8) comprises a moving seat structure (81) arranged on the device body (1), the moving seat structure (81) is provided with a detection light source (82) and a position control detector (83) used for cooperating with the detection light source (82), and the detection light source (82) faces the position control detector (83).

7. The battery pole piece slitting device of claim 6, wherein, The moving seat structure (81) comprises an upper moving seat (811) and a lower moving seat (812); the upper moving seat (811) comprises a C-shaped frame (8111), the C-shaped frame (8111) is slidingly connected with a connecting seat (8112), the C-shaped frame (8111) is provided with a hydraulic rod (8113) used for driving the connecting seat (8112); and the detection light source (82) is arranged on the connecting seat (8112).

8. The battery pole piece slitting device of claim 6, wherein, The detection mechanism (8) further comprises a center position detector (84) arranged on the device body (1), and the center position detector (84) is located between the winding slip shafts (72).

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