Anode rolling and slitting all-in-one machine

Abstract

The utility model relates to the technical field of lithium battery manufacturing, in particular to a positive electrode rolling and slitting all-in-one machine which comprises a rack, a rolling mechanism, a slitting mechanism, a correcting mechanism and two guide rollers, the rolling mechanism and the slitting mechanism are sequentially arranged in the rack in the moving direction of a pole piece, and the rolling mechanism is located on one side of the slitting mechanism. The two material guide rollers are rotationally connected to the discharging end of the rack, and the correcting mechanism is located on one side of the two material guide rollers. The V-shaped tool edges of the V-shaped correction tool aprons are used for scraping burrs on the side edges of the slit pole piece, and meanwhile the V-shaped guide faces of the V-shaped correction tool aprons on the correction frame are used for limiting the side edges of the slit pole piece, so that the slit pole piece is prevented from deviating during rolling.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing technology, and in particular to a positive electrode roller pressing and slitting integrated machine. Background Technology

[0002] The integrated roll forming and slitting machine is an automated equipment that integrates roll forming and slitting functions. It is mainly used for the continuous processing of materials such as new energy battery electrode sheets and packaging films. The equipment uses the roll forming process to flatten or calender the materials, and then uses the slitting mechanism to cut the materials into the required specifications, thus achieving efficient and continuous production.

[0003] According to the patent document with publication number CN220998634U, after passing through the roller pressing device, the electrode passes through the first electrode balance roller, the second electrode balance roller, the electrode tension roller, and the third electrode balance roller in sequence. The electrode enters the correction device through the third electrode balance roller. After passing through the correction device, the electrode is cut into the required size by the disc slitting knife and then wound up by the upper and lower winding air shafts.

[0004] The patent document describes a method where, before the electrode sheet enters the disc slitting knife, a correction controller adjusts the position of the electrode sheet by using left and right correction. After slitting, the slitting electrode sheet is wound up. During this process, if the slitting electrode sheet shifts during winding, the electrode sheet located at the disc slitting knife may also shift, resulting in electrode sheet slitting misalignment. This also causes unevenness at the end face of the wound electrode sheet. Furthermore, after prolonged slitting, the disc slitting knife may heat up and cause burrs to appear at the electrode sheet slitting position. These burrs will be rolled up during electrode sheet winding, causing damage to the burr-free end of the electrode sheet. Utility Model Content

[0005] The purpose of this invention is to provide a positive electrode roller pressing and slitting integrated machine to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A positive electrode roller pressing and slitting integrated machine includes a frame, inside which a roller pressing mechanism and a slitting mechanism are arranged sequentially along the electrode moving direction. The roller pressing mechanism is located on one side of the slitting mechanism. The machine also includes a straightening mechanism and two guide rollers. The two guide rollers are rotatably connected to the discharge end of the frame, and the straightening mechanism is located on one side of the two guide rollers.

[0008] The correction mechanism includes two correction frames arranged symmetrically above and below each other. Each correction frame is equipped with multiple V-shaped correction cutter holders. A U-shaped slide is fixed to one end of each V-shaped correction cutter holder facing the correction frame. The U-shaped slide is slidably connected to the correction frame. A fixing screw is threaded to one end of each V-shaped correction cutter holder facing the correction frame. A V-shaped cutting edge is opened on the side of each V-shaped correction cutter holder near the electrode sheet. A V-shaped guide surface is opened on the rear side of the V-shaped cutting edge of each V-shaped correction cutter holder. The V-shaped guide surface of each V-shaped correction cutter holder fits against the side of the slit electrode sheet. A guide groove is opened on the correction frame to allow the fixing screw to slide back and forth.

[0009] Preferably, the roller pressing mechanism includes a lower pressing roller, which is rotatably connected to the frame. A roller pressing motor is fixedly installed at the input end of the lower pressing roller. An upper pressing roller is provided on the upper side of the lower pressing roller. Adjusting seats are rotatably connected to the front and rear ends of the upper pressing roller. An adjusting screw is rotatably connected to the upper end of each adjusting seat.

[0010] Preferably, the front and rear sides of the feed end of the frame are equipped with limit frames, the adjusting seat is slidably connected in the limit frame, and the adjusting screw is threadedly connected to the upper end of the limit frame.

[0011] Preferably, the rolling mechanism further includes a second auxiliary roller, a first auxiliary roller is provided on one side of the second auxiliary roller, the first auxiliary roller is located on the other side of the upper pressure roller, a third auxiliary roller is provided on the other side of the second auxiliary roller, the front and rear ends of the first auxiliary roller, the second auxiliary roller and the third auxiliary roller are rotatably connected to the frame, and a correction mechanism for adjusting the position of the electrode sheet before slitting is provided on the upper side of the second auxiliary roller.

[0012] Preferably, the correction mechanism includes a correction guide plate, the front and rear ends of which are fixed to the upper end of the frame. Two symmetrical correction clamps are slidably connected to the outer side of the correction guide plate. A correction screw is provided on the lower side of the correction guide plate. Both the front and rear ends of the correction screw are rotatably connected to the frame. A correction motor is fixedly installed at the input end of the correction screw.

[0013] Preferably, the slitting mechanism includes a lower slitting shaft, an upper slitting shaft is provided on the upper side of the lower slitting shaft, and multiple slitting blades for slitting the electrode sheets are fixed on the outer sides of both the lower and upper slitting shafts. A slitting motor is fixedly provided at the front end of the lower slitting shaft.

[0014] Preferably, the rear end of the lower pressure roller and the rear end of the third auxiliary roller are driven by a belt, and the rear ends of the lower slitting shaft and the upper slitting shaft are driven by a belt.

[0015] The advantages compared with the existing technology are as follows: the V-shaped blade of the V-shaped straightening blade holder is used to scrape off the burrs on the side of the slit electrode sheet, and the V-shaped guide surfaces of the multiple V-shaped straightening blade holders on the straightening frame are used to limit the side of the slit electrode sheet, so as to prevent the slit electrode sheet from shifting during winding. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0018] Figure 2 This is a side view of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0019] Figure 3 yes Figure 2 Sectional view at EE;

[0020] Figure 4 This is a partial part drawing of the frame of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0021] Figure 5 This is a partial part drawing of the correction mechanism of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0022] Figure 6 This is a partial part drawing of the roller pressing mechanism of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0023] Figure 7 This is a partial part drawing of the slitting mechanism of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0024] Figure 8 This is a partial part drawing of the correction clamp plate of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0025] Figure 9 This is a partial part drawing of the straightening mechanism of the positive electrode roller pressing and slitting integrated machine described in this utility model;

[0026] Figure 10 This is a partial part drawing of the V-shaped straightening knife holder of the positive electrode roller pressing and slitting integrated machine described in this utility model.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Roller pressing mechanism; 2. Correction mechanism; 3. Slitting mechanism; 4. Straightening mechanism; 5. Electrode sheet; 6. Guide roller; 7. Frame; 11. Lower pressure roller; 12. Upper pressure roller; 13. Adjusting screw; 14. Adjusting seat; 15. First auxiliary roller; 16. Second auxiliary roller; 17. Third auxiliary roller; 18. Roller pressing motor; 21. Correction motor; 22. Correction screw; 23. Correction clamp; 24. Correction guide plate; 31. Slitting motor; 32. Lower slitting shaft; 33. Upper slitting shaft; 34. Slitting blade disc; 41. Support roller; 42. Straightening frame; 43. V-shaped straightening blade holder; 431. V-shaped blade edge; 432. V-shaped guide surface; 44. Fixing screw. Detailed Implementation

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-10 As shown, a positive electrode roller pressing and slitting integrated machine includes a frame 7. Inside the frame 7, a roller pressing mechanism 1 and a slitting mechanism 3 are arranged sequentially along the moving direction of the electrode sheet 5. The roller pressing mechanism 1 is located on one side of the slitting mechanism 3. The machine also includes a straightening mechanism 4 and two guide rollers 6. The two guide rollers 6 are rotatably connected to the discharge end of the frame 7. The straightening mechanism 4 is located on one side of the two guide rollers 6.

[0032] In this embodiment: the correction mechanism 4 includes two correction frames 42 arranged symmetrically vertically. Each correction frame 42 is provided with multiple V-shaped correction blade holders 43. A U-shaped slide is fixed to one end of each V-shaped correction blade holder 43 facing the correction frame 42. The U-shaped slide is slidably connected to the correction frame 42. A fixing screw 44 is threaded to one end of the V-shaped correction blade holder 43 facing the correction frame 42. A V-shaped cutting edge 431 is opened on the side of each V-shaped correction blade holder 43 near the electrode 5. A V-shaped guide surface 432 is opened on the rear side of the V-shaped cutting edge 431 of the V-shaped correction blade holder 43. The V-shaped guide surface 432 of each V-shaped correction blade holder 43 fits against the side of the slit electrode 5. The correction frame 42 is provided with a fixing screw 44. The guide groove of the screw 44 slides back and forth, and the two support pressure rollers 41 are used to press the slit electrode sheet 5. At the same time, the V-shaped guide surfaces 432 of the multiple V-shaped straightening knife holders 43 on the straightening frame 42 are used to limit the side of the slit electrode sheet 5 to prevent the slit electrode sheet 5 from shifting during winding. In addition, the V-shaped knife edge 431 of each V-shaped straightening knife holder 43 is used to scrape off the burrs on the side of the slit electrode sheet 5. When it is necessary to adjust the position of the V-shaped straightening knife holder 43, the fixing screw 44 is loosened and the V-shaped straightening knife holder 43 is moved back and forth along the straightening frame 42 through the U-shaped slide. Then, the adjusted position of the V-shaped straightening knife holder 43 can be fixed by tightening the fixing screw 44.

[0033] In this embodiment: the roller pressing mechanism 1 includes a lower pressing roller 11 and a second auxiliary roller 16. The lower pressing roller 11 is rotatably connected to the frame 7. A roller pressing motor 18 is fixedly installed at the input end of the lower pressing roller 11. An upper pressing roller 12 is provided on the upper side of the lower pressing roller 11. Adjusting seats 14 are rotatably connected to the front and rear ends of the upper pressing roller 12. An adjusting screw 13 is rotatably connected to the upper end of each adjusting seat 14. Limiting frames are provided on both the front and rear sides of the feed end of the frame 7. The adjusting seats 14 are slidably connected in the limiting frames. The adjusting screw 13 is threadedly connected to the upper end of the limiting frames. A first auxiliary roller 15 is provided on one side of the second auxiliary roller 16. The first auxiliary roller 15 is located on the other side of the upper pressing roller 12. A third auxiliary roller 17 is provided on the other side of the second auxiliary roller 16. The first auxiliary roller 15 and the second auxiliary roller 16 are connected in series. Both ends of the auxiliary roller 16 and the third auxiliary roller 17 are rotatably connected to the frame 7. The rear end of the lower pressure roller 11 is connected to the rear end of the third auxiliary roller 17 via a belt drive. The upper side of the second auxiliary roller 16 is provided with a correction mechanism 2 for adjusting the position of the electrode 5 before cutting. By rotating the adjusting screw 13, the adjusting seat 14 is driven to move down or up along the limit frame. The distance between the upper pressure roller 12 and the lower pressure roller 11 is adjusted by the two adjusting seats 14. The lower pressure roller 11 is driven to rotate by the roller pressing motor 18 to roll the electrode 5. At the same time, the lower pressure roller 11 drives the third auxiliary roller 17 to rotate synchronously via a belt. The rotation of the third auxiliary roller 17 drives the electrode 5 to pass between the first auxiliary roller 15 and the second auxiliary roller 16.

[0034] In this embodiment: the correction mechanism 2 includes a correction guide plate 24, the front and rear ends of which are fixed to the upper end of the frame 7. Two symmetrical correction clamps 23 are slidably connected to the outer side of the correction guide plate 24. A correction screw 22 is provided on the lower side of the correction guide plate 24. Both the front and rear ends of the correction screw 22 are rotatably connected to the frame 7. A correction motor 21 is fixedly provided at the input end of the correction screw 22. The correction screw 22 is rotated by the rotating part of the correction motor 21. The rotation of the correction screw 22 drives the two correction clamps 23 to move forward or backward synchronously. Then, the two correction clamps 23 are used to adjust the position of the electrode 5 on the third auxiliary roller 17.

[0035] In this embodiment: the slitting mechanism 3 includes a lower slitting shaft 32, and an upper slitting shaft 33 is provided on the upper side of the lower slitting shaft 32. Multiple slitting discs 34 for slitting the electrode sheet 5 are fixed on the outer sides of both the lower slitting shaft 32 and the upper slitting shaft 33. A slitting motor 31 is fixedly provided at the front end of the lower slitting shaft 32. The rear ends of the lower slitting shaft 32 and the upper slitting shaft 33 are driven by belts. The lower slitting shaft 32 is driven to rotate by the rotating part of the slitting motor 31. At the same time, the belt at the rear end of the lower slitting shaft 32 drives the upper slitting shaft 33 to rotate synchronously. The rotation of the lower slitting shaft 32 and the upper slitting shaft 33 drives the slitting discs 34 of both to perform rotary cutting and slitting of the electrode sheet 5.

[0036] Working principle: When in use, firstly, one end of the electrode sheet 5 that needs to be rolled and slit passes through the rolling mechanism 1, slitting mechanism 3 and straightening mechanism 4 in the frame 7, and then the slit electrode sheet 5 passes through the two guide rollers 6. Then, the slit electrode sheet 5 is wound onto the corresponding winding device, and the winding device is used to wind the slit electrode sheet 5.

[0037] Before the electrode 5 is rolled, the position of the adjusting seat 14 on the limiting seat is adjusted by rotating the adjusting screw 13. Then, the two adjusting seats 14 adjust the distance between the upper pressure roller 12 and the lower pressure roller 11. Then, the lower pressure roller 11 is driven to rotate by the rotating part of the rolling motor 18. The electrode 5 is rolled over under the upper pressure roller 12 by the lower pressure roller 11. Then, the electrode 5 is rolled. The belt at the rear end of the lower pressure roller 11 drives the third auxiliary roller 17 to rotate synchronously. The rotation of the third auxiliary roller 17 drives the electrode 5 to pass over the first auxiliary roller 15 and the second auxiliary roller 16. At this time, the third auxiliary roller 17 will drive the electrode 5 to move towards the slitting mechanism 3.

[0038] Before the electrode 5 moves to the third auxiliary roller 17, the correction screw 22 is driven to rotate by the rotation part of the correction motor 21. The rotation of the correction screw 22 drives the two correction clamps 23 to move forward or backward synchronously. Then, the two correction clamps 23 adjust the position of the electrode 5 on the third auxiliary roller 17 to prevent the electrode 5 from shifting during the cutting process.

[0039] Before the electrode 5 enters between the lower slitting shaft 32 and the upper slitting shaft 33, the lower slitting shaft 32 is driven to rotate by the rotating part of the slitting motor 31, and the upper slitting shaft 33 is driven to rotate by the belt at the rear end of the lower slitting shaft 32. The electrode 5 is slitting and cut by the slitting discs 34 on the lower slitting shaft 32 and the upper slitting shaft 33.

[0040] After the electrode sheet 5 is slit, two support rollers 41 are used to press the slit electrode sheet 5. At the same time, the V-shaped guide surfaces 432 of multiple V-shaped straightening knife holders 43 on the straightening frame 42 are used to limit the side of the slit electrode sheet 5 to prevent the slit electrode sheet 5 from shifting during winding. In addition, the V-shaped blades 431 of each V-shaped straightening knife holder 43 are used to scrape off the burrs on the side of the slit electrode sheet 5. When it is necessary to adjust the position of the V-shaped straightening knife holder 43, the fixing screws 44 are loosened and the V-shaped straightening knife holder 43 is moved back and forth along the straightening frame 42 through the U-shaped slide. Then, the adjusted position of the V-shaped straightening knife holder 43 can be fixed by tightening the fixing screws 44.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A positive electrode roll cutting integrated machine, comprising a rack (7), a roll mechanism (1) and a cutting mechanism (3) are sequentially arranged inside the rack (7) along the moving direction of the electrode sheet (5), and the roll mechanism (1) is located on one side of the cutting mechanism (3), characterized in that: It also includes a straightening mechanism (4) and two guide rollers (6), the two guide rollers (6) being rotatably connected to the discharge end of the frame (7), and the straightening mechanism (4) being located on one side of the two guide rollers (6); The correction mechanism (4) includes two correction frames (42) arranged symmetrically at opposite ends. Each correction frame (42) is provided with multiple V-shaped correction blade holders (43). Each V-shaped correction blade holder (43) has a U-shaped slide fixed to one end facing the correction frame (42). The U-shaped slide is slidably connected to the correction frame (42). A fixing screw (44) is threaded to one end of the V-shaped correction blade holder (43) facing the correction frame (42). Each of the V-shaped straightening knife holders (43) has a V-shaped cutting edge (431) on the side near the electrode (5). A V-shaped guide surface (432) is provided on the rear side of the V-shaped cutting edge (431) of the V-shaped straightening knife holder (43). The V-shaped guide surface (432) of each V-shaped straightening knife holder (43) fits against the side of the slit electrode (5). A guide groove is provided on the straightening frame (42) for the fixing screw (44) to slide back and forth.

2. The positive electrode roll press and slitting all-in-one machine according to claim 1, characterized in that: The roller pressing mechanism (1) includes a lower pressing roller (11), which is rotatably connected to the frame (7). A roller pressing motor (18) is fixedly installed at the input end of the lower pressing roller (11). An upper pressing roller (12) is provided on the upper side of the lower pressing roller (11). Adjusting seats (14) are rotatably connected to the front and rear ends of the upper pressing roller (12). An adjusting screw (13) is rotatably connected to the upper end of each adjusting seat (14).

3. The positive electrode roll press and slitting all-in-one machine according to claim 2, characterized in that: The feed end of the frame (7) is provided with limit frames on both the front and rear sides. The adjusting seat (14) is slidably connected in the limit frame. The adjusting screw (13) is threadedly connected to the upper end of the limit frame.

4. The positive electrode roller pressing and slitting integrated machine according to claim 3, characterized in that: The roller pressing mechanism (1) further includes a second auxiliary roller (16). A first auxiliary roller (15) is provided on one side of the second auxiliary roller (16). The first auxiliary roller (15) is located on the other side of the upper pressing roller (12). A third auxiliary roller (17) is provided on the other side of the second auxiliary roller (16). The front and rear ends of the first auxiliary roller (15), the second auxiliary roller (16) and the third auxiliary roller (17) are rotatably connected to the frame (7). A correction mechanism (2) for adjusting the position of the electrode sheet (5) before cutting is provided on the upper side of the second auxiliary roller (16).

5. The positive electrode roll press and slitting all-in-one machine according to claim 4, characterized in that: The correction mechanism (2) includes a correction guide plate (24), the front and rear ends of which are fixed to the upper end of the frame (7). Two symmetrical correction clamps (23) are slidably connected to the outer side of the correction guide plate (24). A correction screw (22) is provided on the lower side of the correction guide plate (24). Both the front and rear ends of the correction screw (22) are rotatably connected to the frame (7). A correction motor (21) is fixedly provided at the input end of the correction screw (22).

6. The positive electrode roll press and slitting all-in-one machine according to claim 4, characterized in that: The slitting mechanism (3) includes a lower slitting shaft (32), an upper slitting shaft (33) is provided on the upper side of the lower slitting shaft (32), and a plurality of slitting blades (34) for slitting the electrode sheet (5) are fixed on the outer side of both the lower slitting shaft (32) and the upper slitting shaft (33). A slitting motor (31) is fixedly provided at the front end of the lower slitting shaft (32).

7. The positive electrode roll press and slitting all-in-one machine according to claim 6, characterized in that: The rear end of the lower pressure roller (11) and the rear end of the third auxiliary roller (17) are driven by a belt, and the rear ends of the lower cutting shaft (32) and the upper cutting shaft (33) are driven by a belt.

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