Lithium strip processing device integrated with edge cutting and dust removing functions and pole piece rolling compound system

Abstract

The utility model discloses a lithium strip processing device integrated with edge cutting and dust removing functions and a pole piece rolling composite system. The lithium strip processing device comprises an edge cutting assembly and two waste absorbing assemblies arranged at an interval, the edge cutting assembly comprises a mounting frame provided with two vertical plates which are oppositely arranged, and a first cutter and a second cutter which are arranged between the two vertical plates, and the first cutter and the second cutter are arranged in the length direction of the mounting frame at an interval; the waste suction assembly comprises a dust remover and hollow waste suction pipelines connected with the dust remover, waste suction openings are formed in the ends, away from the dust remover, of the waste suction pipelines, the waste suction openings of the two waste suction pipelines face the first cutter and the second cutter respectively, and in the lithium strip feeding direction, the two waste suction openings are located in front of the first cutter and in front of the second cutter respectively. According to the lithium strip processing device, wrinkles and uneven parts on the edge of the lithium strip can be cut off, the cut edge part of the lithium strip can be sucked away, dust formed in the cutting process is sucked away, and the quality of a pole piece obtained through compounding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium strip composites, and in particular to a lithium strip processing device integrated with edge trimming and dust removal functions and a pole piece winding composite system. Background Art

[0002] Lithium ribbon composite rolling technology involves placing a lithium ribbon coated with an active material on a current collector (typically copper or aluminum foil) using specialized rolling equipment. Under a specific pressure and gap, the active material is compacted and tightly bonded to the current collector, forming a pole piece with a specific thickness and density. This technology is crucial for improving the energy density, cycle life, and safety of lithium-ion batteries.

[0003] Before laminating the lithium ribbon with the current collector, wrinkles or uneven rolls along the edges of the ribbon can affect the lamination process, so the edges of the ribbon must be cut. The cleanliness of the ribbon surface after cutting and before lamination directly affects the battery's conductivity and electrochemical performance. Dust generated during the cutting process, if deposited on the electrode surface, can reduce battery performance, such as capacity and cycle life.

[0004] Therefore, it is very necessary to set up a device that can trim the lithium strip and a device that can remove dust from the surface of the lithium strip between the unwinding device and the composite device. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium strip processing device and a pole piece winding composite system integrated with edge cutting and dust removal functions, so that the edges of the lithium strip can be cut and the surface of the lithium strip can be dusted.

[0006] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0007] A lithium ribbon processing device integrated with a trimming and dust removal function, the lithium ribbon processing device comprising a trimming component and two waste suction components spaced apart;

[0008] The trimming assembly includes a mounting frame having two opposed vertical plates, and a first cutter and a second cutter both mounted between the two vertical plates, wherein the first cutter and the second cutter are spaced apart in the longitudinal direction of the mounting frame;

[0009] The waste suction component includes a dust collector and a hollow waste suction pipe connected to the dust collector. The waste suction pipe has a waste suction port at one end away from the dust collector. The waste suction ports of the two waste suction pipes are respectively facing the first cutter and the second cutter, and in the feeding direction of the lithium strip, the two waste suction ports are respectively located in front of the first cutter and in front of the second cutter.

[0010] Furthermore, the waste suction port is a bell-shaped port, and the bell-shaped port is extended outward in a direction away from the dust collector.

[0011] Furthermore, the waste suction assembly also includes a slide rod and two locking blocks, the two ends of the slide rod are respectively connected to the two vertical plates, and the waste suction pipeline is locked on the slide rod through the locking blocks.

[0012] Furthermore, the distance between the first cutter and the second cutter is adjustable, and the connection position between the locking block and the slide rod is adjustable.

[0013] Furthermore, the trimming assembly also includes an upper cutter shaft and a lower cutter shaft both rotatably mounted between the two vertical plates, and the first cutter and the second cutter both include an upper cutter mounted on the upper cutter shaft and a lower cutter mounted on the lower cutter shaft.

[0014] Furthermore, the trimming assembly further comprises two sliding plates, two upper knife bearing seats and two adjustment plates;

[0015] The sliding plate is provided with waist holes on two opposite sides, and the vertical plate is provided with through holes laterally connected to the waist holes.

[0016] The inner end of the adjustment plate is fixedly connected to the top of the sliding plate, and the outer end is placed in the clearance gap opened on the top of the vertical plate. The outer end is provided with an adjustment plate threaded hole;

[0017] The upper knife bearing seat is fixed to the inner side of the sliding plate, and the upper knife shaft is rotatably mounted on the upper knife bearing seat through a bearing.

[0018] Furthermore, the upper blade bearing seat includes an upper blade bearing seat base fixedly connected to the sliding plate, and an upper blade bearing seat top seat detachably fastened to the upper blade bearing seat base.

[0019] Furthermore, the trimming assembly also includes a driving mechanism for driving the lower knife shaft to rotate, and two lower knife bearing seats respectively fixed on the two vertical plates. The lower knife shaft is rotatably mounted on the lower knife bearing seats through bearings, and the lower knife shaft is transmission-connected to the upper knife shaft.

[0020] Furthermore, the trimming assembly also includes two rollers and four cover plates, the two ends of the rollers are respectively connected to sliders, the vertical plate is provided with a sliding groove with an opening facing upward corresponding to the slider, the slider is slidably installed in the two sliding grooves, and an elastic support member is provided in the sliding groove below the slider, the cover plate is fixed on the vertical plate and covers the opening downward, and a cover plate threaded hole is provided on the cover plate to connect downward to the sliding groove.

[0021] The technical solution of this utility model has the following advantages:

[0022] 1. The utility model provides a lithium ribbon processing device with integrated trimming and dust removal functions. The first cutter and the second cutter are arranged to split the lithium ribbon into three strips. The flat middle portion of the lithium ribbon flows into the compounding process, and the wrinkled and uneven portions of the lithium ribbon edges will not participate in the compounding, thereby greatly reducing the impact of the unevenness of the lithium ribbon on the quality of the electrode obtained after compounding. At the same time, during the cutting process, the dust collector is started, and the lithium ribbons on both sides of the cut portion enter the waste suction component from the waste suction port. At the same time, the dust collector can also suck out the dust generated during the cutting process, thereby greatly reducing the impact of dust and debris on the quality of the electrode obtained after compounding, and ultimately improving the quality of the electrode obtained after compounding. In addition, the lithium ribbon processing device with integrated trimming and dust removal functions can also process lithium ribbons with larger widths.

[0023] 2. The lithium belt processing device with integrated trimming and dust removal function provided by the utility model has a waste suction port in the form of a bell mouth, which opens outward in the direction away from the dust collector. In this way, the passing area of dust and waste can be increased, thereby improving the waste suction efficiency.

[0024] 3. The lithium strip processing device with integrated trimming and dust removal functions provided by the present invention has an adjustable distance between the first cutter and the second cutter, and an adjustable connection position between the locking block and the slide rod. In this way, the distance between the first cutter and the second cutter in the length direction of the mounting frame can be adjusted according to the width of the lithium strip that needs to be retained, and the waste suction pipeline can be ensured to always face the first cutter and the second cutter, thereby ensuring the waste suction effect and improving the adaptability of the lithium strip processing device with integrated trimming and dust removal functions.

[0025] The adjusting plate is fixed on the upper side of the sliding plate, and the adjusting plate is fixed on the upper side of the sliding plate, and the adjusting plate is fixed on the upper side of the sliding plate, and the adjusting plate is fixed on the lower side of the sliding plate.

[0026] 5. The lithium belt processing device with integrated trimming and dust removal function provided by the utility model comprises an upper knife bearing seat comprising an upper knife bearing seat base fixedly connected to the sliding plate, and an upper knife bearing seat top seat detachably fastened to the upper knife bearing seat base, which facilitates the disassembly of the upper knife shaft and the replacement of the upper cutter.

[0027] 6. The utility model provides a lithium belt processing device with integrated trimming and dust removal functions. The trimming assembly also includes two rollers and four cover plates. The two ends of the rollers are respectively connected to sliders. The vertical plates are provided with upward-opening slide grooves corresponding to the sliders. The sliders are slidably installed in the two slide grooves. Elastic support members are provided under the sliders in the slide grooves. The cover plates are fixed on the vertical plates and cover the openings downwards. The cover plates are provided with threaded holes that are downwardly connected to the slide grooves. In this way, the vertical spacing between the rollers and the upper cutter can be adjusted by adjusting the position of the sliders in the slide grooves, thereby finally achieving the adjustment of the tension and supporting force of the lithium belt.

[0028] A pole piece winding and compounding system comprises an unwinding device, the aforementioned lithium strip processing device with integrated trimming and dust removal function, a compounding device and a winding device, which are arranged in sequence. The unwinding device is used to unwind the lithium strip and the current collector strip, the compounding device is used to press and compound the current collector strip and the lithium strip, and the winding device is used to wind the pole piece obtained by compounding.

[0029] The technical solution of this utility model has the following advantages:

[0030] The electrode winding and compounding system provided by the present invention has all the advantages of the aforementioned lithium strip processing device integrated with trimming and dust removal functions. In addition, in the electrode winding and compounding system of the present invention, the arrangement of the trimming component and the waste suction component will not affect the original unwinding device, compounding device and winding device, and there is no need to trim the lithium strip and rewind it in advance, and then send it to the unwinding device for unwinding, and then feed it to the compounding device, thereby reducing the cost of trimming and dust removal of the lithium strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A three-dimensional schematic diagram of a lithium strip processing device with integrated edge trimming and dust removal functions according to an embodiment of the present invention;

[0033] Figure 2A side view schematic diagram of a lithium strip processing device with integrated edge trimming and dust removal functions in an embodiment of the present invention;

[0034] Figure 3 This is a partial enlarged view of a lithium strip processing device with integrated edge trimming and dust removal functions in an embodiment of the present invention;

[0035] Figure 4 Another partially enlarged view of the lithium strip processing device with integrated edge trimming and dust removal functions in an embodiment of the present invention;

[0036] Figure 5 It is a structural schematic diagram of an unwinding device and a lithium ribbon processing device with integrated edge trimming and dust removal functions in a pole piece winding composite system in an embodiment of the present invention;

[0037] Figure 6 This is a structural diagram of a composite device in a pole piece winding composite system in an embodiment of the present utility model;

[0038] Figure 7 It is a structural schematic diagram of the winding device in the electrode winding composite system in an embodiment of the present utility model.

[0039] Description of reference numerals:

[0040] 1. Trimming assembly; 10. Mounting frame; 100. Vertical plate; 1000. Through hole; 1001. Slide groove; 1002. Elastic support member; 1003. Notch; 101. Pull rod; 11. First cutter; 12. Second cutter; A. Upper cutter; B. Lower cutter; 13. Upper cutter shaft; 131. Upper cutter bearing seat; 1311. Upper cutter bearing seat base; 1312. Upper cutter bearing seat top seat; 13121. Connecting hole; 14. Lower cutter shaft; 141. Lower cutter bearing seat; 15. Sliding plate; 151. Waist hole; 16. Adjustment plate ;161. Threaded hole of adjustment plate;162. Mounting hole;17. Driving mechanism;18. Roller;181. Slider;19. Cover plate;191. Threaded hole of cover plate;2. Waste suction assembly;21. Waste suction pipeline;211. Waste suction port;22. Slide rod;23. Locking block;3. Unwinding device;31. Lithium strip unwinding mechanism;32. Current collector unwinding mechanism;33. Protective film unwinding mechanism;4. Composite device;41. Pressing roller;5. Rewinding device;51. Pole piece rewinding mechanism;52. Protective film rewinding mechanism;53. Reserved rewinding mechanism. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1

[0046] like Figures 1 to 5 As shown, this embodiment provides a lithium strip processing device with integrated trimming and dust removal function (hereinafter referred to as lithium strip processing device), including a trimming component 1 (as shown Figure 5 As shown, of course Figure 5 The figure is a simplified schematic diagram of a trimming assembly 1) and two waste suction assemblies 2 arranged at intervals, the trimming assembly 1 includes a mounting frame 10 with two oppositely arranged vertical plates 100, and a first cutter 11 and a second cutter 12 both installed between the two vertical plates 100, the first cutter 11 and the second cutter 12 are spaced apart in the length direction of the mounting frame 10, the waste suction assembly 2 includes a dust collector (not shown) and a hollow waste suction pipe 21 connected to the dust collector, the waste suction pipe 21 has a waste suction port 211 at one end away from the dust collector, the waste suction ports 211 of the two waste suction pipes 21 are respectively facing the first cutter 11 and the second cutter 12, and in the feeding direction of the lithium strip, the two waste suction ports 211 are respectively located in front of the first cutter and in front of the second cutter 12.

[0047] The utility model provides a lithium ribbon processing device with integrated trimming and dust removal functions. The first cutter 11 and the second cutter 12 are arranged to split the lithium ribbon into three strips. The flat middle portion of the lithium ribbon flows into the compounding process, and the wrinkled and uneven edge portions of the lithium ribbon will not participate in the compounding, thereby greatly reducing the impact of the unevenness of the lithium ribbon on the quality of the electrode obtained after compounding. At the same time, during the cutting process, the dust collector is started, and the lithium ribbons on both sides of the cut portion enter the waste suction component 2 from the waste suction port 211 and are collected. At the same time, the dust collector can also remove the dust generated during the cutting process, thereby greatly reducing the impact of dust and debris on the quality of the electrode obtained by compounding, and ultimately improving the quality of the electrode obtained after compounding. In addition, the lithium ribbon processing device with integrated trimming and dust removal functions can also process lithium ribbons with larger widths.

[0048] Furthermore, the two upright plates 100 are connected together by two tie rods 101 spaced apart along the width direction of the mounting frame 10 .

[0049] In this embodiment, the waste suction pipes 21 are right-angled bends, and both waste suction pipes 21 are located above the lithium strip. The waste suction port 211 is a bell-shaped port that flares outward away from the dust collector. This increases the area through which dust and waste can pass, improving waste suction efficiency. In other embodiments, the waste suction pipes 21 can also have other shapes, and one of the waste suction pipes 21 can be located above the lithium strip, the other below the lithium strip, or both below the lithium strip.

[0050] Furthermore, the waste suction assembly 2 also includes a slide rod 22 and two locking blocks 23 . The two ends of the slide rod 22 are respectively connected to the two vertical plates 100 . The waste suction pipeline 21 is locked in a preset position on the slide rod 22 by the locking blocks 23 .

[0051] Furthermore, the spacing between the first cutter 11 and the second cutter 12 in the length direction of the mounting frame 10 is adjustable, and the connection position of the locking block 23 and the slide rod 22 is adjustable. In this way, the spacing between the first cutter 11 and the second cutter 12 in the length direction of the mounting frame 10 can be adjusted according to the width of the lithium strip that needs to be retained, and the waste suction pipeline 21 can be ensured to always face the first cutter 11 and the second cutter 12, thereby ensuring the waste suction effect and improving the adaptability of the lithium strip processing device.

[0052] Furthermore, the trimming assembly 1 also includes an upper cutter shaft 13 and a lower cutter shaft 14 both rotatably mounted between the two vertical plates 100 , and the first cutter 11 and the second cutter 12 both include an upper cutter A mounted on the upper cutter shaft 13 and a lower cutter B mounted on the lower cutter shaft 14 .

[0053] Furthermore, the trimming assembly 1 further comprises two sliding plates 15, two upper blade bearing seats 131 and two adjusting plates 16. The two opposite sides of the sliding plate 15 are respectively provided with waist holes 151 (such as Figure 4As shown), the vertical plate 100 is provided with a through hole 1000 that is laterally connected to the waist hole 151, and the inner end of the adjustment plate 16 and the top of the sliding plate 15 are connected by a locking member (not shown, but Figure 1 The mounting hole 162 corresponding to the locking member is shown in FIG. 1 ) and is fixedly connected, and the outer end is placed in the clearance notch 1003 (such as Figure 3 As shown in the figure, an adjustment plate threaded hole 161 is provided on the outer end, the upper knife bearing seat 131 is fixed to the inner side of the sliding plate 15, and the upper knife shaft 13 is rotatably mounted on the upper knife bearing seat 131 through the bearing. In this way, when it is necessary to fine-tune the distance between the upper knife shaft 13 and the lower knife shaft 14, it is only necessary to screw a screw (not shown) into the adjustment plate threaded hole 161, and adjust the position of the adjustment plate 16 in the clearance gap 1003 by screwing in or out the screw. The adjustment plate 16 will drive the upper knife shaft 13 connected to the sliding plate 15 to move by moving the sliding plate 15 fixed thereto, thereby finally realizing the adjustment of the distance between the upper knife shaft 13 and the lower knife shaft 14.

[0054] In this embodiment, the upper blade bearing seat 131 includes an upper blade bearing seat base 1311 fixedly connected to the sliding plate 15, and a detachable buckle with the upper blade bearing seat base 1311 and locked together by a locking member (not shown) ( Figure 4 The upper knife bearing seat top seat 1312 of the connecting hole 13121 corresponding to this locking member is shown. This design can facilitate the disassembly of the upper knife shaft 13 and the replacement of the upper cutter A.

[0055] In this embodiment, the trimming assembly 1 also includes a driving mechanism 17 (specifically a servo motor) for driving the lower cutter shaft 14 to rotate, and two lower cutter bearing seats 141 respectively fixed on the two vertical plates 100. The lower cutter shaft 14 is rotatably mounted on the lower cutter bearing seats 141 through bearings. The output shaft of the driving mechanism 17 passes through a vertical plate 100 and is connected to one end of the lower cutter shaft 14. The lower cutter shaft 14 is connected to the upper cutter shaft 13 through a gear set.

[0056] Of course, the upper cutter A can be replaced with a pneumatic shearing knife according to the thickness of the lithium strip, which can also achieve the effect of trimming. Specifically, when the thickness of the lithium strip is large, a pneumatic shearing knife is used.

[0057] Furthermore, the trimming assembly 1 also includes two rollers 18 and four cover plates 19. The two ends of the rollers 18 are respectively connected to sliders 181. The vertical plate 100 is provided with a sliding groove 1001 with an opening facing upward corresponding to the slider 181. The slider 181 is slidably installed in the two sliding grooves 1001. An elastic support member 1002 is provided below the slider 181 in the sliding groove 1001. The cover plate 19 is fixed on the vertical plate 100 and covers the opening downward. The cover plate 19 is provided with a cover plate threaded hole 191 downwardly connected to the sliding groove 1001. In this way, the vertical spacing between the roller 18 and the upper cutter A can be adjusted by adjusting the position of the slider 181 in the sliding groove 1001, thereby finally achieving the adjustment of the tension and supporting force of the lithium strip. Specifically, the adjusting screw (not shown) passes through the threaded hole 191 of the cover plate and abuts against the top surface of the slider 181. The abutment force on the slider 181 can be adjusted by screwing the adjusting screw in or out. Combined with the support of the slider 181 by the elastic support member 1002, the position of the slider 181 in the slide groove 1001 can be adjusted, thereby realizing the adjustment of the vertical distance between the roller 18 and the upper cutter A.

[0058] Furthermore, in terms of quick replacement of cutting tools, the two ends of the lower cutter shaft 14 are rotatably mounted on the two lower cutter bearing seats 141 through bearings. When replacing the lower cutter B, it is only necessary to remove the bearing on one side and loosen the locking screw of the lower cutter B, and the lower cutter B can be removed.

[0059] Example 2

[0060] It should be noted that Figures 5 to 7 The present embodiment provides a pole piece winding composite system, comprising an unwinding device 3, a lithium strip processing device (such as the lithium strip processing device 1) and a lithium strip processing device 2 arranged in sequence. Figures 1 to 4 As shown), a composite device 4 and a winding device 5, the unwinding device 3 is used to unwind the lithium belt and the current collector belt, the composite device 4 is used to press and composite the current collector belt and the lithium belt, and the winding device 5 is used to wind up the composited electrode.

[0061] The electrode winding and compounding system provided by the present invention has all the advantages of the aforementioned lithium strip processing device. In addition, in the electrode winding and compounding system of the present invention, the arrangement of the trimming component 1 and the waste suction component 2 will not affect the original unwinding device 3, the compounding device 4 and the winding device 5. There is no need to use the trimming component 1 to trim the lithium strip and rewind it in advance, and then reach the unwinding device 3 for unwinding, and then feed it to the compounding device 4. Therefore, the cost of trimming and dust removal of the lithium strip can be reduced.

[0062] Furthermore, the unwinding device 3 includes a lithium strip unwinding mechanism 31, a current collector unwinding mechanism 32, and a protective film unwinding mechanism 33; the composite device 4 includes two pressure rollers 41 arranged in pairs; and the winding device 5 includes a pole piece winding mechanism 51, a protective film winding mechanism 52, and two reserved winding mechanisms 53.

[0063] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A lithium strip processing device integrated with edge trimming and dust removal function, characterized in that: The lithium strip processing device comprises a trimming assembly (1) and two waste suction assemblies (2) arranged at a distance from each other; The trimming assembly (1) comprises a mounting frame (10) having two opposed vertical plates (100), and a first cutter (11) and a second cutter (12) both mounted between the two vertical plates (100), wherein the first cutter (11) and the second cutter (12) are spaced apart in a longitudinal direction of the mounting frame (10); The waste suction component (2) comprises a dust collector and a hollow waste suction pipe (21) connected to the dust collector, wherein the waste suction pipe (21) has a waste suction port (211) at one end away from the dust collector, and the waste suction ports (211) of the two waste suction pipes (21) are respectively oriented toward the first cutter (11) and the second cutter (12), and in the feeding direction of the lithium strip, the two waste suction ports (211) are respectively located in front of the first cutter and in front of the second cutter (12).

2. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 1, characterized in that: The waste suction port (211) is a bell-shaped port, and the bell-shaped port is spread outward in a direction away from the dust collector.

3. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 1, characterized in that: The waste suction assembly (2) further comprises a slide rod (22) and two locking blocks (23), the two ends of the slide rod (22) being respectively connected to the two vertical plates (100), and the waste suction pipeline (21) being locked on the slide rod (22) via the locking blocks (23).

4. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 3, characterized in that: The distance between the first cutter (11) and the second cutter (12) in the length direction of the mounting frame (10) is adjustable, and the connection position between the locking block (23) and the slide rod (22) is adjustable.

5. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 1, characterized in that: The trimming assembly (1) further comprises an upper cutter shaft (13) and a lower cutter shaft (14) both rotatably mounted between the two vertical plates (100); the first cutter (11) and the second cutter (12) both comprise an upper cutter (A) mounted on the upper cutter shaft (13) and a lower cutter (B) mounted on the lower cutter shaft (14).

6. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 5, characterized in that: The trimming assembly (1) further comprises two sliding plates (15), two upper knife bearing seats (131) and two adjustment plates (16); The sliding plate (15) is provided with waist holes (151) on two opposite sides, and the vertical plate (100) is provided with a through hole (1000) laterally connected to the waist holes (151); The inner end of the adjustment plate (16) is fixedly connected to the top of the sliding plate (15), and the outer end is placed in the clearance gap (1003) opened on the top of the vertical plate (100), and the outer end is provided with an adjustment plate threaded hole (161); The upper knife bearing seat (131) is fixed to the inner side of the sliding plate (15), and the upper knife shaft (13) is rotatably mounted on the upper knife bearing seat (131) via a bearing.

7. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 6, characterized in that: The upper blade bearing seat (131) comprises an upper blade bearing seat base (1311) fixedly connected to the sliding plate (15), and an upper blade bearing seat top seat (1312) detachably fastened to the upper blade bearing seat base (1311).

8. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 5, characterized in that: The trimming assembly (1) further comprises a driving mechanism (17) for driving the lower cutter shaft (14) to rotate, and two lower cutter bearing seats (141) respectively fixed on the two vertical plates (100); the lower cutter shaft (14) is rotatably mounted on the lower cutter bearing seats (141) via bearings, and the lower cutter shaft (14) is transmission-connected to the upper cutter shaft (13).

9. The lithium strip processing device with integrated edge trimming and dust removal function according to claim 1, characterized in that: The trimming assembly (1) further comprises two rollers (18) and four cover plates (19), the two ends of the rollers (18) are respectively connected to sliders (181), a sliding groove (1001) with an opening facing upward is provided on the vertical plate (100) corresponding to the sliders (181), the sliders (181) are slidably mounted in the two sliding grooves (1001), an elastic support member (1002) is provided in the sliding groove (1001) below the sliders (181), the cover plates (19) are fixed on the vertical plate (100) and cover the opening downward, and a cover plate threaded hole (191) is provided on the cover plate (19) that is downwardly connected to the sliding groove (1001).

10. A pole piece winding and compounding system, characterized in that: The invention comprises an unwinding device (3), a lithium strip processing device with integrated edge trimming and dust removal function as described in any one of claims 1 to 9, a compounding device (4) and a winding device (5) arranged in sequence, wherein the unwinding device (3) is used to unwind the lithium strip and the current collector strip, the compounding device (4) is used to press and compound the current collector strip and the lithium strip, and the winding device (5) is used to wind up the electrode obtained by compounding.

Images