A lithium battery laser die-cutting device with dust removal function

Abstract

The utility model relates to the technical field of lithium battery production. The utility model provides a lithium battery laser die-cutting device with dust removal function. The utility model includes: a laser galvanometer; a pole piece negative pressure assembly, which is arranged at the front side of the laser galvanometer; the pole piece negative pressure assembly includes a main body and a first negative pressure box connected to the main body; a through hole is provided in the main body at a position below the first negative pressure box; a cover body of a laser dust removal side cover and a first dust removal air knife located at one end of the cover body; an air guide groove is provided at a position on the back side of the cover body facing the laser beam, and a second dust removal air knife is provided at the bottom end of the air guide groove, and the air outlet of the second dust removal air knife faces the air guide groove; a first laser side dust extraction duct is connected to the first negative pressure box and the end of the laser dust removal side cover; a waste guide assembly is arranged below the pole piece negative pressure assembly; the waste guide assembly includes a transmission part for adsorbing and transmitting cutting waste and a waste collection box. The utility model achieves the effect of efficient dust removal.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a lithium battery laser die-cutting device with a dust removal function. Background Art

[0002] In laser die-cutting equipment, laser cutting as a production station must die-cut the tabs well. To ensure the yield of the battery cell, the laser stability requirement is very high. In laser die-cutting equipment, the laser die-cutting station will produce dust during cutting, which will contaminate the tabs and cause the battery cell to be defective, and even affect the cutting stability and make it impossible to produce. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the existing technology.

[0004] In order to solve the above technical problems, on the one hand, the utility model provides a lithium battery laser die-cutting device with a dust removal function, comprising:

[0005] Laser galvanometer, used to generate laser beam;

[0006] The pole piece negative pressure assembly is arranged at the front side of the laser galvanometer; the pole piece negative pressure assembly comprises a main body and a first negative pressure box connected to the main body; a through hole is arranged in the main body at a position below the first negative pressure box;

[0007] The laser dust removal side cover is arranged at the front side of the pole piece negative pressure assembly; the laser dust removal side cover comprises a cover body and a first dust removal air knife located at one end of the cover body, the first dust removal air knife and the front side of the pole piece material line form a predetermined angle; an air guide groove is arranged at the back side of the cover body facing the laser beam, a second dust removal air knife is arranged at the bottom end of the air guide groove, and the air outlet of the second dust removal air knife faces the air guide groove;

[0008] A first laser side dust extraction pipeline is connected to the first negative pressure box and the end of the laser dust removal side cover, and the first laser side dust extraction pipeline is located at an end of the cover body away from the first dust removal air knife;

[0009] The waste guide assembly is arranged below the pole piece negative pressure assembly; the waste guide assembly comprises a transmission part for adsorbing and transmitting cutting waste and a waste collection box.

[0010] In one embodiment of the utility model, the pole piece negative pressure assembly also includes a first auxiliary roller rotatably connected to the front end of the main body, a first brush body arranged in the main body, and a second laser side dust extraction duct; the first auxiliary roller is located below the laser beam; the first brush body contacts the first auxiliary roller and is used to sweep away dust adhering to the first auxiliary roller; the second laser side dust extraction duct is arranged at one end of the first brush body.

[0011] In one embodiment of the utility model, a notch is provided at one end of the first negative pressure box connected to the first laser side dust extraction pipe, and an adjustment plate for adjusting the size of the notch is connected to the notch.

[0012] In one embodiment of the utility model, the transmission part includes a waste guide body, a driving part connected to both ends of the waste guide body, and a waste negative pressure belt wound around the driving part; the driving part drives the waste negative pressure belt to operate for transmitting cut waste; the waste guide body includes a vertical surface and an inclined surface connected to the bottom end of the vertical surface, and the inclined surface is inclined backward from top to bottom; a second negative pressure box is provided at a position behind the vertical surface in the waste guide body, a second connecting hole is provided on the front side of the second negative pressure box, and a hollow is provided on the waste negative pressure belt.

[0013] In one embodiment of the utility model, the driving part includes a driving wheel with power input and at least one driven wheel, the driving wheel is rotatably connected to one end of the waste guide body, and the driven wheel is rotatably connected to the other end of the waste guide body; the waste negative pressure belt is wound around the driving wheel and the driven wheel.

[0014] In one embodiment of the utility model, the driving part also includes a tensioning wheel located at the rear side of the waste guide body, the tensioning wheel is rotatably connected to the waste guide body, and the waste negative pressure belt is wound around the driving wheel, the tensioning wheel and the driven wheel.

[0015] In one embodiment of the utility model, the waste guide assembly also includes a dust removal component for cleaning dust on the waste negative pressure belt, the dust removal component includes a fixed frame, a belt cleaning brush and a waste dust removal duct; a mounting groove is provided on the front side of the fixed frame, the belt cleaning brush is installed in the mounting groove and is rotatably connected to the fixed frame, the waste dust removal duct is connected to the rear side of the fixed frame and is connected to the mounting groove; the belt cleaning brush is in contact with the outer surface of the waste negative pressure belt.

[0016] In one embodiment of the utility model, the dust removal component also includes a belt adjustment component, which includes a connecting part connected to a fixed frame, a guide rail, a slider slidably connected to the guide rail, a fixed plate connected to a waste guide body, and a handle; the guide rail is connected to the fixed plate, and the slider is connected to the connecting part; a slide groove is provided on the fixed plate, and the handle is connected to a connecting bolt, which passes through the slide groove and is connected to the connecting part.

[0017] In one embodiment of the utility model, the waste collection box includes a negative pressure collection pipe, the pipe mouth of the negative pressure collection pipe is arranged directly below the inclined surface, and a wind flow guide plate is provided at the pipe mouth of the negative pressure collection pipe.

[0018] In one embodiment of the utility model, the waste collection box further comprises an auxiliary guide air knife arranged at the front side of the waste guide assembly, and the blade of the auxiliary guide air knife is arranged toward the inclined surface.

[0019] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0020] The lithium battery laser die-cutting equipment with dust removal function described in the utility model is equipped with a laser dust removal side cover on the front side of the pole piece negative pressure component. The first dust removal air knife in the laser dust removal side cover can clean the dust generated on the pole piece surface at the cutting position, and then discharge it under the action of the first laser side dust extraction pipe. In this process, the laser dust removal side cover blocks the front side of the cutting position to prevent dust from being dispersed from the front side of the cutting position to cause pollution and accumulate dust in the air guide groove. In addition, the laser dust removal side cover is also provided with an air guide groove and a second dust removal air knife. The second dust removal air knife located at the bottom of the air guide groove blows away the dust accumulated in the air guide groove under the guiding action of the arc-shaped air guide groove, which is convenient for the first laser side dust extraction pipe to extract it away, thereby achieving the effect of efficient dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model and in combination with the accompanying drawings, wherein:

[0022] Figure 1 This is a structural schematic diagram of a lithium battery laser die-cutting device with a dust removal function in a preferred embodiment of the utility model;

[0023] Figure 2 for Figure 1 A front view of a lithium battery laser die-cutting device with a dust removal function is shown;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of a lithium battery laser die-cutting device with dust removal function

[0025] (Excluding the pole piece negative pressure assembly and the laser dust removal side cover);

[0026] Figure 4 for Figure 3 The main view;

[0027] Figure 5 for Figure 3 A schematic diagram of the structure from another perspective;

[0028] Figure 6 for Figure 1 A schematic diagram of the structure of a waste guide assembly in a lithium battery laser die-cutting device with a dust removal function is shown;

[0029] Figure 7 for Figure 1 A schematic diagram of the structure of a pole piece negative pressure assembly, a laser dust removal side cover and a first laser side dust removal pipeline in a lithium battery laser die-cutting device with dust removal function is shown;

[0030] Figure 8 for Figure 1 A schematic diagram of the structure of a pole piece negative pressure assembly and a laser dust removal side cover in a lithium battery laser die-cutting device with a dust removal function is shown;

[0031] Fig. 9 It is a structural schematic diagram of the electrode negative pressure assembly from another perspective;

[0032] Fig.10 for Figure 1 The figure shows a schematic diagram of the structure of a laser dust removal side cover in a lithium battery laser die-cutting device with a dust removal function.

[0033] Description of the accompanying drawings: 100, laser galvanometer; 110, laser beam;

[0034] 200, pole piece negative pressure assembly; 210, main body; 211, through hole; 220, first negative pressure box; 221, first connecting hole; 222, notch; 223, adjustment plate; 230, first auxiliary roller; 240, first brush body; 250, second laser side dust extraction pipeline;

[0035] 300, laser dust removal side cover; 310, cover body; 311, air guide slot; 312, second dust removal air knife; 320, first dust removal air knife;

[0036] 400, first laser side dust extraction pipeline;

[0037] 500, waste guide assembly; 510, waste guide body; 511, vertical surface; 512, inclined surface; 513, second negative pressure box; 520, driving part; 521, driving wheel; 522, driven wheel; 523, tensioning wheel; 530, waste negative pressure belt; 531, hollowing; 540, dust removal component; 541, fixing frame; 542, belt cleaning brush; 543, waste dust removal pipeline; 544, mounting groove; 545, connecting piece; 546, guide rail; 547, slider; 548, fixing plate; 549, handle; 550, slide groove; 560, negative pressure collection pipeline; 570, wind flow guide plate; 571, fixing part; 572, inclined part; 580, auxiliary guide wind knife;

[0038] 600, pole piece material line transmission assembly; 610, first passing roller; 620, second passing roller;

[0039] 700. Pole material line. DETAILED DESCRIPTION

[0040] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the utility model and implement it, but the embodiments are not intended to limit the utility model.

[0041] Reference Figures 1 to 10 As shown, the embodiment of the utility model provides a lithium battery laser die-cutting device with a dust removal function, comprising:

[0042] A laser galvanometer 100 is used to generate a laser beam 110;

[0043] The pole piece negative pressure assembly 200 is arranged at the front side of the laser galvanometer 100; Figure 8 As shown, the pole piece negative pressure assembly 200 includes a main body 210 and a first negative pressure box 220 connected to the main body 210; a through hole 211 for the laser beam 110 to pass through is provided in the main body 210 at a position below the first negative pressure box 220; a first connecting hole 221 connecting the inside of the first negative pressure box 220 with the outside is provided on the front side of the first negative pressure box 220, and the first negative pressure box 220 adsorbs the pole piece material line 700 through the first connecting hole 221;

[0044] The laser dust removal side cover 300 is arranged at the front side of the pole piece negative pressure assembly 200; Fig.10 As shown, the laser dust removal side cover 300 includes a cover body 310 and a first dust removal air knife 320 located at one end of the cover body 310, and the first dust removal air knife 320 forms a predetermined angle with the front side of the pole piece material line 700; an air guide groove 311 (for example, the air guide groove 311 is U-shaped) is provided at the back side of the cover body 310 facing the laser beam 110, and a second dust removal air knife 312 is provided at the bottom end of the air guide groove 311, and the air outlet of the second dust removal air knife 312 faces the air guide groove 311; the first dust removal air knife 320 and the second dust removal air knife 312 are both positive pressure blowing air knives;

[0045] The first laser side dust extraction duct 400 is connected to the first negative pressure box 220 and the end of the laser dust removal side cover 300. The first laser side dust extraction duct 400 is located at one end of the cover body 310 away from the first dust removal wind knife 320. The stable airflow of the first laser side dust extraction duct 400 has little effect on the pole piece.

[0046] The waste guide assembly 500 is arranged below the pole piece negative pressure assembly 200; the waste guide assembly 500 includes a transmission part for adsorbing and transmitting cutting waste and a waste collection box.

[0047] The pole piece material line transmission component 600, such as Figure 2 As shown, it includes a first roller 610 located above the pole piece negative pressure assembly 200 and a second roller 620 located at the front side of the transmission part.

[0048] Among them, the pole sheet material line 700 is wound on the first roller 610 and the second roller 620, and the pole sheet material line 700 located between the first roller 610 and the second roller 620 is adsorbed on the first negative pressure box 220 and the transmission part from top to bottom in sequence, and the laser beam 110 passes through the through hole 211 and is projected onto the pole sheet material line 700.

[0049] It has been observed that during the die-cutting process, the most dust is often generated at the cutting position (i.e., the front side of the first negative pressure box 220, where the laser beam 110 is projected onto the pole sheet line 700).

[0050] Therefore, in this embodiment, a laser dust removal side cover 300 is arranged on the front side of the pole piece negative pressure assembly 200. The first dust removal air knife 320 in the laser dust removal side cover 300 can clean the dust generated on the pole piece surface at the cutting position, and then discharge it under the action of the first laser side dust removal duct 400; in this process, the laser dust removal side cover 300 blocks the front side of the cutting position to prevent the dust from being dispersed from the front side of the cutting position to cause pollution while accumulating the dust in the air guide groove 311. In addition, the laser dust removal side cover 300 is also provided with an air guide groove 311 and a second dust removal air knife 312. The second dust removal air knife 312 located at the bottom of the air guide groove 311 blows away the dust accumulated in the air guide groove 311 under the guiding action of the arc-shaped air guide groove 311, so that it is convenient for the first laser side dust removal duct 400 to extract it away, thereby achieving the effect of efficient dust removal. The present application has a simple structure, a wide range of applications, and a strong dust removal ability. The front and back described in this specification are based on Figure 2 The right side in the figure is the front and the left side is the back.

[0051] Furthermore, if Figure 8 , Fig. 9 As shown, the pole piece negative pressure assembly 200 further includes a first auxiliary roller 230 rotatably connected to the front end of the main body 210, a first brush body 240 disposed in the main body 210, and a second laser side dust extraction pipe 250; the first auxiliary roller 230 is located below the laser beam 110; the first brush body 240 contacts the first auxiliary roller 230 to remove dust adhering to the first auxiliary roller 230; the second laser side dust extraction pipe 250 is disposed at one end of the first brush body 240 to extract and collect dust adhering to the first auxiliary roller 230 by the first brush body 240. The pole piece line 700 contacts the first auxiliary roller 230, and the first auxiliary roller 230 is used to assist in transporting the pole piece line 700.

[0052] Specifically, this embodiment is provided with a first brush body 240 and a second laser side dust removal duct 250. The first brush body 240 can remove the dust adhering to the first auxiliary roller 230, and then extract it away through the second laser side dust removal duct 250, so as to further improve the dust removal effect and prevent dust from blocking the light path and causing pollution.

[0053] When the first dust removal air knife 320 blows air toward the pole piece material line 700, it is inevitable that dust generated during cutting will enter the first negative pressure box 220 from the first connecting hole 221. To address this problem, further, in the first negative pressure box 220 of this embodiment, one end connected to the first laser side dust extraction pipe 400 is provided with a notch 222, and an adjustment plate 223 for adjusting the size of the notch 222 is connected to the notch 222. The adjustment plate 223 is connected to the first negative pressure box 220 by bolts, and a connecting slot is provided on the adjustment plate 223. The bolt passes through the connecting slot and is connected to the first negative pressure box 220. The size of the notch 222 is adjusted by connecting the bolts at different positions of the connecting slot. The end of the first negative pressure box 220 away from the first laser side dust extraction pipe 400 is connected to a pipeline connected to a negative pressure extraction device, and the first negative pressure box 220 is evacuated to negative pressure by the negative pressure extraction device.

[0054] Specifically, in this embodiment, a notch 222 and an adjustment plate 223 for adjusting the size of the notch 222 are provided on the first negative pressure box 220, so that air can be supplied to the first negative pressure box 220 through the notch 222, so that the negative pressure of the first negative pressure box 220 can flow and take away the dust accumulated in the first negative pressure box 220, thereby further improving the dust removal effect.

[0055] Furthermore, if Figure 2 , Figure 3As shown, the transmission part includes a waste guide body 510, a driving part 520 connected to both ends of the waste guide body 510, and a waste negative pressure belt 530 wound around the driving part 520; the driving part 520 drives the waste negative pressure belt 530 to operate for transmitting the cut waste; the waste guide body 510 includes a vertical surface 511 and an inclined surface 512 connected to the bottom end of the vertical surface 511, and the inclined surface 512 is inclined backward from top to bottom; a second negative pressure box 513 is provided at the position behind the vertical surface 511 in the waste guide body 510, a second connecting hole is provided at the front side of the second negative pressure box 513, and a hollow is provided on the waste negative pressure belt 530. The second negative pressure box 513 absorbs the cut waste through the second connecting hole and the hollow. The second roller 620 is arranged at the connection between the vertical surface 511 and the inclined surface 512. In some embodiments, the angle between the vertical surface 511 and the inclined surface 512 can be 15°. Further, the driving part 520 includes a driving wheel 521 with power input (for example, the driving wheel 521 is connected to a motor that drives the driving wheel 521 to rotate) and at least one driven wheel 522, the driving wheel 521 is rotatably connected to one end of the waste guide body 510, and the driven wheel 522 is rotatably connected to the other end of the waste guide body 510; the waste negative pressure belt 530 is wound around the driving wheel 521 and the driven wheel 522. Further, the driving part 520 also includes a tensioning wheel 523 located at the rear side of the waste guide body 510, the tensioning wheel 523 is rotatably connected to the waste guide body 510, and the waste negative pressure belt 530 is wound around the driving wheel 521, the tensioning wheel 523 and the driven wheel 522.

[0056] Specifically, the second negative pressure box 513 in this embodiment absorbs the cutting waste through the second connecting hole and the hollowing. After the cutting is completed, the electrode and the cutting waste are absorbed on the vertical surface 511 of the waste negative pressure belt 530. Driven by the drive unit 520, the waste negative pressure belt 530 is driven to operate to transport the electrode and the cutting waste to the bottom of the vertical surface 511. With the further operation of the waste negative pressure belt 530, when the electrode and the cutting waste are transported to the inclined surface 512, the electrode is separated from the cutting waste (the inclined surface 512 is very helpful for guiding the cutting waste and separating the cutting waste from the electrode, and after entering the inclined surface 512, the waste negative pressure belt 530 and the electrode can be forked, which can reduce the influence of the second negative pressure box 513 in the waste negative pressure belt 530 on the separation of the electrode), the cutting waste is absorbed on the inclined surface 512, and the electrode flows to the next station under the drive of the second roller 620.

[0057] Furthermore, if Figure 2 , Figure 4 , Figure 6As shown, the waste guide assembly 500 further includes a dust removal component 540 for cleaning dust on the waste negative pressure belt 530, and the dust removal component 540 includes a fixing frame 541, a belt cleaning brush 542, and a waste dust removal pipe 543; the front side of the fixing frame 541 is provided with a mounting groove 544, the belt cleaning brush 542 is mounted in the mounting groove 544 and is rotatably connected to the fixing frame 541, and the waste dust removal pipe 543 is connected to the rear side of the fixing frame 541 and is connected to the mounting groove 544; the belt cleaning brush 542 is in contact with the outer surface of the waste negative pressure belt 530. In some embodiments, the belt cleaning brush 542 can be driven to rotate by a motor connected to the driving wheel 521 of the waste negative pressure belt 530 through a synchronous belt.

[0058] Specifically, the dust removal component 540 provided in this embodiment cleans dirt on the belt surface through the belt cleaning brush 542, thereby reducing secondary dust pollution.

[0059] Furthermore, the dust removal component 540 also includes a belt adjustment component, which includes a connecting piece 545 connected to the fixed frame 541, a guide rail 546, a slider 547 slidably connected to the guide rail 546, a fixed plate 548 connected to the waste guide body 510, and a handle 549; the guide rail 546 is connected to the fixed plate 548, and the slider 547 is connected to the connecting piece 545; a slide groove 550 is provided on the fixed plate 548, and the handle 549 is connected to a connecting bolt, which passes through the slide groove 550 and is connected to the connecting piece 545. In this embodiment, the handle 549 is held by hand to lock or loosen the connecting member 545 and the fixing plate 548. When loosening the connecting member 545 and the connecting member 548, the handle 549 slides along the guide rail 546 with the connecting member 545, and the connecting bolt of the handle 549 moves in the slide groove 550. After adjusting the position, the connecting bolt is tightened on the connecting member 545 by the handle 549, so that the connecting member 545 can be locked on the fixing plate 548, so that the distance between the belt cleaning brush 542 and the waste negative pressure belt 530 can be achieved.

[0060] Specifically, the belt adjusting component provided in this embodiment can adjust the contact extrusion force between the belt cleaning brush 542 and the waste negative pressure belt 530, thereby adjusting the strength of the belt cleaning brush 542 in cleaning the waste negative pressure belt 530. In addition, the dust removal component 540 is provided on one side of the tensioning wheel 523, so that the belt adjusting component is convenient for adjusting the tension of the waste negative pressure belt 530.

[0061] In some comparative examples, Figure 4 , Figure 5As shown, during laser die cutting, the cutting waste will be blocked at the nozzle of the negative pressure collection pipe 560, resulting in the inability to collect the cutting waste, which has a great impact on the normal production and yield of the equipment. In view of the problems existing in the above comparative embodiments, the waste collection box of the present application includes a negative pressure collection pipe 560, the nozzle of the negative pressure collection pipe 560 is arranged directly below the inclined surface 512, and a wind flow guide plate 570 is arranged at the nozzle of the negative pressure collection pipe 560. In some embodiments, the wind flow guide plate 570 includes a fixed portion 571 connected to the negative pressure collection pipe 560 and an inclined portion 572 extending from the nozzle of the negative pressure collection pipe 560 into the negative pressure collection pipe 560. Specifically, the wind flow guide plate 570 provided in this embodiment can guide the wind flow of the disordered negative pressure wind coming out of the negative pressure collection pipe 560, thereby facilitating the effective and stable absorption and discharge of the cutting waste, and avoiding the cutting waste from being blocked at the nozzle of the negative pressure collection pipe 560. In addition, the wind flow guide plate 570 can also change the chaotic and disordered wind flow of the negative pressure collection pipe 560 for collecting cutting waste in different situations.

[0062] Due to the shape and size of the waste, the negative pressure utilization rate on the waste negative pressure belt 530 is not high, and there is a problem of unstable adsorption of the cut waste. In order to solve this problem, the waste collection box of this embodiment also includes an auxiliary guide air knife 580 arranged on the front side of the waste guide assembly 500, and the blade of the auxiliary guide air knife 580 is arranged toward the inclined surface 512. Specifically, the positive pressure blowing of the auxiliary guide air knife 580 in this embodiment can press the cut waste separated from the waste negative pressure belt 530 back to the waste negative pressure belt 530, so that the cut waste can be firmly adsorbed on the waste negative pressure belt 530, thereby achieving the purpose of the cut waste being stably absorbed and discharged by the negative pressure collection pipe 560. In addition, it also has a cleaning effect on the waste negative pressure belt 530 and reduces dust pollution.

[0063] The direction of the laser belt passing is from the first roller 610 to the second roller 620, and the running direction of the pole piece line 700 is from top to bottom. After the laser is triggered, the edge of the pole piece is die-cut into pole ears and cutting waste. At this time, the cutting waste will be negatively adsorbed by the waste negative pressure belt 530 and guided to the waste collection box along the track of the waste negative pressure belt 530.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the utility model creation.

Claims

1. A lithium battery laser die-cutting device with dust removal function, characterized in that: include: Laser galvanometer, used to generate laser beam; A pole piece negative pressure assembly is arranged at the front side of the laser galvanometer; the pole piece negative pressure assembly comprises a main body and a first negative pressure box connected to the main body; a through hole is arranged in the main body at a position below the first negative pressure box; A laser dust removal side cover is arranged at the front side of the pole piece negative pressure assembly; the laser dust removal side cover comprises a cover body and a first dust removal air knife located at one end of the cover body, the first dust removal air knife and the front side surface of the pole piece material line form a predetermined angle; an air guide groove is arranged at the back side of the cover body facing the laser beam, a second dust removal air knife is arranged at the bottom end of the air guide groove, and the air outlet of the second dust removal air knife faces the air guide groove; A first laser side dust extraction pipeline is connected to the first negative pressure box and the end of the laser dust removal side cover, and the first laser side dust extraction pipeline is located at an end of the cover body away from the first dust removal air knife; The waste guide assembly is arranged below the pole piece negative pressure assembly; the waste guide assembly comprises a transmission part for adsorbing and transmitting cutting waste and a waste collection box.

2. The lithium battery laser die-cutting equipment with dust removal function according to claim 1 is characterized in that: The pole piece negative pressure assembly also includes a first auxiliary roller rotatably connected to the front end of the main body, a first brush body arranged in the main body, and a second laser side dust extraction pipe; the first auxiliary roller is located below the laser beam; the first brush body is in contact with the first auxiliary roller to remove dust adhering to the first auxiliary roller; the second laser side dust extraction pipe is arranged at one end of the first brush body.

3. The lithium battery laser die-cutting equipment with dust removal function according to claim 2 is characterized in that: One end of the first negative pressure box connected to the first laser side dust extraction pipe is provided with a notch, and the notch is connected to an adjustment plate for adjusting the size of the notch.

4. The lithium battery laser die-cutting equipment with dust removal function according to claim 1 is characterized in that: The transmission part includes a waste guide body, a driving part connected to both ends of the waste guide body, and a waste negative pressure belt wound on the driving part; the driving part drives the waste negative pressure belt to operate for transmitting cut waste; the waste guide body includes a vertical surface and an inclined surface connected to the bottom end of the vertical surface, and the inclined surface is inclined backward from top to bottom; a second negative pressure box is provided at a position behind the vertical surface in the waste guide body, a second connecting hole is provided on the front side of the second negative pressure box, and a hollow is provided on the waste negative pressure belt.

5. The lithium battery laser die-cutting equipment with dust removal function according to claim 4 is characterized in that: The driving part includes a driving wheel with power input and at least one driven wheel, the driving wheel is rotatably connected to one end of the waste guide body, and the driven wheel is rotatably connected to the other end of the waste guide body; the waste negative pressure belt is wound around the driving wheel and the driven wheel.

6. The lithium battery laser die-cutting device with dust removal function according to claim 5 is characterized in that: The driving part also includes a tensioning wheel located at the rear side of the waste guide body, the tensioning wheel is rotatably connected to the waste guide body, and the waste negative pressure belt is wound around the driving wheel, the tensioning wheel and the driven wheel.

7. The lithium battery laser die-cutting device with dust removal function according to claim 6 is characterized in that: The waste guide assembly also includes a dust removal component for cleaning dust on the waste negative pressure belt, and the dust removal component includes a fixed frame, a belt cleaning brush and a waste dust removal duct; a mounting groove is provided on the front side of the fixed frame, the belt cleaning brush is installed in the mounting groove and is rotatably connected to the fixed frame, and the waste dust removal duct is connected to the rear side of the fixed frame and communicated with the mounting groove; the belt cleaning brush is in contact with the outer surface of the waste negative pressure belt.

8. The lithium battery laser die-cutting device with dust removal function according to claim 7 is characterized in that: The dust removal component also includes a belt adjustment component, which includes a connecting piece connected to the fixed frame, a guide rail, a slider slidably connected to the guide rail, a fixed plate connected to the waste guide body, and a handle; the guide rail is connected to the fixed plate, and the slider is connected to the connecting piece; a slide groove is provided on the fixed plate, and the handle is connected with a connecting bolt, and the connecting bolt passes through the slide groove and is connected to the connecting piece.

9. The lithium battery laser die-cutting device with dust removal function according to claim 8, characterized in that: The waste collection box comprises a negative pressure collection pipe, the pipe opening of the negative pressure collection pipe is arranged directly below the inclined surface, and a wind flow guide plate is arranged at the pipe opening of the negative pressure collection pipe.

10. The lithium battery laser die-cutting device with dust removal function according to claim 9, characterized in that: The waste collection box further comprises an auxiliary guide air knife arranged at the front side of the waste guide assembly, and the blade of the auxiliary guide air knife is arranged toward the inclined surface.

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