Laser cutting mechanism for avoiding dust and laser damage to the conveying belt

Abstract

The utility model relates to a kind of laser cutting mechanism for avoiding dust and laser damage conveying belt, including pass roller, laser cutting cavity, adsorption roller, the central part of laser cutting cavity is provided with laser cutting position, with pole piece as boundary, laser cutting position is set conveying belt in the pole piece side away from field mirror, conveying belt is cyclically rotated between adsorption area, separation zone, discharge area, vertical rotary area and horizontal rotary area, separation zone, discharge area and vertical rotary area are set in laser cutting cavity outside, adsorption area, horizontal rotary area are set in laser cutting cavity, and located in dust splashing and laser scattering area, dust and scattering laser in the direction of adsorption area conveying belt are shielded by pole piece main part and edge material, the side of horizontal rotary area near laser cutting position is provided with protective plate, dust and scattering laser in the direction of horizontal rotary area conveying belt are shielded by protective plate.The utility model is shielded by protective plate and pole piece, prolongs the service life of conveying belt.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrode production technology, and in particular to a laser cutting mechanism that avoids dust and laser damage to the conveyor belt. Background Technology

[0002] Before the electrodes are wound or stacked, they are usually formed with tabs by laser cutting. In the existing process, the waste generated by laser cutting in the laser cutting cavity needs to be transported out by a conveyor belt. The conveyor belt is usually set on the same side of the electrode as the laser field lens. The high-temperature metal dust and paint dust generated by laser cutting of the electrode can easily splash onto the conveyor belt, continuously burning the conveyor belt and reducing its service life. Moreover, dust can easily accumulate in the dead corners of the airflow in the cavity. Especially when cutting the positive electrode, the foil dust and ceramic dust on the edge of the paint can easily condense. When too much dust accumulates, it can easily contaminate and scratch the electrode, and block the dust removal airflow in the cavity, affecting the dust removal effect of the cavity. Furthermore, the existing cavity lacks a stabilizing roller for the electrode sheet, resulting in the electrode sheet portion at the cutting position being far from the roller outside the cavity, with a distance of more than 200 mm. Under the influence of the dust removal airflow inside the cavity, the electrode sheet is prone to shaking during laser cutting, causing poor laser cutting and affecting the quality of the electrode sheet. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a laser cutting mechanism that avoids dust and laser damage to the conveyor belt.

[0004] This invention provides a laser cutting mechanism to avoid dust and laser damage to the conveyor belt. It includes a guide roller, a laser cutting cavity, and an adsorption roller arranged sequentially along the electrode conveyor path. A laser cutting position for tab laser cutting of the electrode is located in the center of the laser cutting cavity. A conveyor belt is positioned on the side of the electrode facing away from the field mirror, with the electrode as the boundary. The conveyor belt circulates between an adsorption zone, a separation zone, a discharge zone, a vertical rotation zone, and a horizontal rotation zone. In the adsorption zone, the conveyor belt adsorbs the electrode body and edge material through negative pressure. In the separation zone, the edge material adsorbed by the conveyor belt interacts with the adsorbed electrode body. The auxiliary rollers work together to separate the edge material from the electrode body. The conveyor belt separates the edge material in the discharge area. The separation area, discharge area, and vertical rotation area are located outside the laser cutting cavity. The adsorption area and transverse rotation area are located inside the laser cutting cavity and are situated within the dust splash and laser scattering area. Dust and scattered laser rays directed toward the conveyor belt in the adsorption area are blocked by the electrode body and edge material. A protective plate is provided on the side of the transverse rotation area near the laser cutting position. The protective plate is parallel to one side of the conveyor belt in the transverse rotation area, and dust and scattered laser rays directed toward the conveyor belt in the transverse rotation area are blocked by the protective plate.

[0005] In some embodiments, a pressure roller is provided inside the laser cutting cavity, the pressure roller is positioned close to the laser cutting position, and the electrode body and edge material are sandwiched between the conveyor belt and the pressure roller in the adsorption zone by a rolling conveyor.

[0006] In some embodiments, an adjusting roller assembly is provided on the outside of the laser cutting cavity. The adjusting roller assembly, the laser cutting position, and the pressure roller are arranged sequentially along the electrode belt path. The distance between the laser cutting position and the adjusting roller assembly and the pressure roller is less than 40 mm.

[0007] In some embodiments, the pressure roller is a steel roller.

[0008] In some embodiments, the protective plate has a curved section at the corner between the transverse rotation zone and the adsorption zone, the curved section extending toward the contact point between the conveyor belt and the electrode in the adsorption zone.

[0009] In some embodiments, the conveyor belt is mounted inside the laser cutting cavity via a mounting base. The mounting base is equipped with a pulley and a reversing roller. The conveyor belt is sleeved between the pulley and multiple reversing rollers. The pulley is located in the discharge area and is connected to a drive motor. A reversing roller is provided at the corner between the vertical and horizontal rotation areas, at the corner between the horizontal rotation area and the adsorption area, and at the corner between the adsorption area and the separation area. The mounting base is fixedly connected to the fixed section of the protective plate at the corner between the vertical and horizontal rotation areas.

[0010] In some embodiments, the mounting base is provided with a negative pressure chamber leading to the adsorption zone and the separation zone, the conveyor belt is provided with a vent hole that cooperates with the negative pressure chamber, the negative pressure chamber is connected to an external air source through a negative pressure pipe, and the adsorption zone and the separation zone generate suction force through the negative pressure chamber to adsorb the edge material onto the conveyor belt.

[0011] In some embodiments, the conveyor belt of the separation zone is inclined away from the electrode, the adsorption roller is located outside the separation zone, the adsorption roller is provided with a plurality of adsorption holes, the adsorption roller adsorbs the electrode body through the plurality of adsorption holes that generate negative pressure, and the conveyor belt of the separation zone pulls the edge material to separate from the electrode body.

[0012] In some embodiments, the discharge area is located at the corner of the separation area and the vertical rotation area. The discharge area is provided with a connecting shell, which is wrapped around the outside of the conveyor belt of the discharge area. The connecting shell is provided with a discharge pipe, which is parallel to the width direction of the conveyor belt. The discharge pipe sucks away the dust attached to the conveyor belt through negative pressure.

[0013] In some embodiments, a first base and a second base are also included, which are connected by a slide rod and form a laser cutting cavity between them. Both the first base and the second base are provided with air blowing plates on the same inner wall of the laser cutting cavity. The first base is provided with a dust suction port for an external dust suction pipe on the other side of the laser cutting cavity. The air blowing plates blow air along the width direction of the electrode sheet, and the blowing direction of the air is parallel to the protective plate. The air flow blows the dust generated by the laser cutting electrode sheet toward the dust suction port.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting the conveyor belt on the side of the electrode away from the field mirror, the part of the conveyor belt in the laser cutting cavity is shielded and protected by the protective plate and the electrode. The high-temperature metal dust, paint dust and scattered laser generated during laser cutting of the electrode are shielded by the protective plate and the electrode, so as to protect the conveyor belt and extend the service life of the conveyor belt. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to an embodiment of this application.

[0016] Figure 2 This is a three-dimensional structural diagram of the conveyor belt according to an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the internal structure of the laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to an embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the electrode structure during laser cutting according to an embodiment of this application.

[0019] Figure 5 This is a three-dimensional structural schematic diagram of a laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to an embodiment of this application.

[0020] Figure reference numerals: 101, electrode body; 102, edge material; 201, field lens; 301, adsorption zone; 302, separation zone; 303, discharge zone; 304, vertical rotation zone; 305, horizontal rotation zone;

[0021] 1. Laser cutting cavity; 11. Laser cutting position; 12. Air blowing plate; 13. Pressure roller; 14. Support block;

[0022] 2. First seat; 21. Dust inlet; 22. Dust suction pipe; 23. Linear bearing; 24. Magnet;

[0023] 3. Second seat; 31. Sliding rod; 32. Window; 33. Handle;

[0024] 4. Conveyor belt; 41. Vent hole;

[0025] 5. Mounting base; 51. Reversing roller; 52. Drive motor; 53. Negative pressure chamber; 54. Negative pressure pipe; 55. Connecting shell; 56. Discharge pipe;

[0026] 6. Protective plate; 61. Bending section; 62. Fixed section;

[0027] 7. Adsorption roller; 71. Adsorption hole;

[0028] 8. Roller pass;

[0029] 9. Adjust the material rollers. Detailed Implementation

[0030] The specific embodiments of this utility model are described with reference to the accompanying drawings.

[0031] refer to Figure 1 The figure shows a front view of the laser cutting mechanism for the conveyor belt 4, designed to prevent dust and laser damage. From top to bottom, the mechanism includes a guide roller 8, a laser cutting cavity 1, and an adsorption roller 7. The guide roller 8 guides the electrode sheet into the laser cutting cavity 1. A field mirror 201 is located on the right side of the laser cutting cavity 1. The laser generated by the laser generator passes through the field mirror 201 and irradiates the laser cutting cavity 1, cutting the edge of the electrode sheet. Figure 4 As shown, the electrode sheet is continuously cut into tabs by a laser moving along a specified path. The tabs are formed on the electrode sheet body 101, and the edges after laser cutting form edge material 102. The edge material 102 is separated from the electrode sheet body 101 by a conveyor belt 4.

[0032] refer to Figures 1 to 5A laser cutting mechanism for avoiding dust and laser damage to the conveyor belt 4 includes a roller 8, a laser cutting cavity 1, and an adsorption roller 7 arranged sequentially along the electrode conveyor path. A laser cutting position 11 for performing electrode tab laser cutting is located in the center of the laser cutting cavity 1. A conveyor belt 4 is arranged on the side of the laser cutting position 11 away from the field mirror 201, with the electrode as the boundary. The conveyor belt 4 circulates between an adsorption zone 301, a separation zone 302, a discharge zone 303, a vertical rotation zone 304, and a horizontal rotation zone 305. In the adsorption zone 301, the conveyor belt 4 adsorbs the electrode body 101 and edge material 102 through negative pressure. The edge material 102 adsorbed by the conveyor belt 4 cooperates with the adsorption roller 7 adsorbing the electrode body 101 in the separation zone 302. In the separation operation of edge material 102 from electrode body 101, the conveyor belt 4 separates from edge material 102 in discharge area 303. Separation area 302, discharge area 303 and vertical rotation area 304 are set outside the laser cutting cavity 1. Adsorption area 301 and horizontal rotation area 305 are set inside the laser cutting cavity 1 and are located in the dust splash and laser scattering area. Dust and scattered laser directed towards the conveyor belt 4 in the adsorption area 301 are shielded by electrode body 101 and edge material 102. A protective plate 6 is set on the side of the horizontal rotation area 305 near the laser cutting position 11. The protective plate 6 is set parallel to the side of the conveyor belt 4 in the horizontal rotation area 305. Dust and scattered laser directed towards the conveyor belt 4 in the horizontal rotation area 305 are shielded by the protective plate 6.

[0033] The laser cutting mechanism of this application, which avoids dust and laser damage to the conveyor belt 4, is designed by placing the conveyor belt 4 on one side of the electrode away from the field mirror 201. The portion of the conveyor belt 4 in the laser cutting cavity 1 is shielded and protected by the protective plate 6 and the electrode. The high-temperature metal dust, paint dust, and scattered laser generated during laser cutting of the electrode are shielded by the protective plate 6 and the electrode, thereby protecting the conveyor belt 4 and extending its service life.

[0034] To facilitate cleaning of the laser cutting cavity 1, in this embodiment, reference is made to... Figure 1 , Figure 3 and Figure 5 The laser cutting mechanism for preventing dust and laser damage to the conveyor belt 4 also includes a first base 2 and a second base 3. The first base 2 and the second base 3 are connected by a slide rod 31, forming a laser cutting cavity 1 between the first base 2 and the second base 3. Both the first base 2 and the second base 3 are provided with air blowing plates 12 on the same inner wall of the laser cutting cavity 1. The first base 2 is provided with a dust suction port 21 for external dust suction pipe 22 on the other side of the laser cutting cavity 1. The air blowing plate 12 blows air along the width direction of the electrode sheet. The blowing direction of the air is parallel to the protective plate 6. The air blowing blows the dust generated by the laser cutting electrode sheet toward the dust suction port 21.

[0035] It should be further explained that the sliding rod 31 is set perpendicular to the electrode travel path, so that the first seat 2 and the second seat 3 open and close in the direction perpendicular to the electrode travel path. The first seat 2 is equipped with a linear bearing 23, and the second seat 3 is fixed to the sliding rod 31. The sliding rod 31 is slidably connected to the linear bearing 23. When it is necessary to clean the laser cutting cavity 1, such as... Figure 5 As shown, pulling the handle 33 of the second seat 3 can separate the first seat 2 and the second seat 3, exposing the inside of the laser cutting cavity 1. After cleaning the laser cutting cavity 1, push the second seat 3 along the slide bar 31 to move it onto the first seat 2 until the first seat 2 and the second seat 3 are connected by the magnet 24. The first seat 2 and the second seat 3 after being closed can form a better laser cutting cavity 1. The second seat 3 is provided with a window 32 facing the field lens 201. The laser generated by the laser generator is controlled by the galvanometer and focused by the field lens 201, and then shines on the electrode of the laser cutting position 11 through the window 32.

[0036] Furthermore, the air blowing plate 12 is a honeycomb air blowing plate 12. The honeycomb air blowing plate 12 has very fine holes, and the airflow is uniform, so that the airflow in the laser cutting cavity 1 is stable during dust removal, without eddy dead zones or blind spots, reducing dust accumulation, ensuring the stability of the electrode sheet during electrode cutting, and preventing the electrode sheet from shaking due to the difference in air pressure on both sides of the thickness.

[0037] Understandably, the first seat 2 and the second seat 3 are connected by a slide bar 31, which makes it easy to open the laser cutting cavity 1 and clean the dust accumulated inside the laser cutting cavity 1. After cleaning, the second seat 3 is pushed onto the first seat 2 and then held in place by the magnet 24.

[0038] To prevent the electrode from vibrating within the laser cutting cavity 1, in this embodiment, reference is made to... Figure 1 , Figure 3 and Figure 5 A pressure roller 13 is provided inside the laser cutting cavity 1. The pressure roller 13 is located close to the laser cutting position 11. The electrode body 101 and the edge material 102 are sandwiched between the conveyor belt 4 and the pressure roller 13 in the adsorption zone 301 by rolling.

[0039] It is understandable that the two ends of the pressure roller 13 are connected to the second seat 3 through the support block 14, so that the pressure roller 13 is stably installed in the laser cutting cavity 1. When the electrode is laser cut, it can clamp the electrode together with the conveyor belt 4 of the adsorption area 301, so as to ensure that the foil area at the edge of the electrode does not shake during laser cutting, thereby ensuring the laser cutting effect and effectively improving the cutting yield.

[0040] To better stabilize the electrode during laser cutting, in this embodiment, reference is made to... Figure 1 and Figure 5An adjusting roller assembly is provided on the outside of the laser cutting cavity 1. The adjusting roller assembly, the laser cutting position 11 and the pressure roller 13 are arranged sequentially along the electrode belt path. The distance between the laser cutting position 11 and the adjusting roller assembly and the pressure roller 13 is less than 40mm.

[0041] Understandably, the adjusting roller assembly consists of three adjusting rollers 9. The tension of the electrode sheet is adjusted by adjusting the distance between the three staggered adjusting rollers 9. The adjusting roller assembly and the pressure roller 13 are located in front of and behind the laser cutting position 11, respectively. The pressure roller 13 is only about 30mm away from the laser cutting position 11, and the adjusting roller assembly is about 40mm away from the laser cutting position 11. This results in the electrode sheet having only about 70mm of suspended length in the laser cutting cavity 1. Under the influence of the electrode sheet tension, this length ensures that the electrode sheet will not be affected by the dust removal airflow and vibrate during laser cutting.

[0042] To prevent the pressure roller 13 from being damaged by high-temperature splashing dust and scattered laser light, in this embodiment, reference is made to... Figure 1 and Figure 5 The pressure roller 13 is a steel roller.

[0043] It is understandable that using a metal steel roller as the pressure roller 13 can protect the pressure roller 13 from high-temperature splashing dust and scattered laser without damage, thus ensuring the service life of the pressure roller 13 and enabling the pressure roller 13 to continuously and stably clamp the electrode sheet.

[0044] To increase the coverage area of ​​the protective plate 6, in this embodiment, reference is made to... Figure 1 The protective plate 6 has a curved section 61 at the corner between the transverse rotation area 305 and the adsorption area 301. The curved section 61 extends toward the contact position between the conveyor belt 4 of the adsorption area 301 and the electrode.

[0045] Understandably, the angular matching between the curved section 61 and the transverse turning area 305 and the adsorption area 301 results in a smaller distance between the curved section 61 and the conveyor belt 4 at the corner, and a larger coverage area, so as to ensure that the protective plate 6 can cover a larger area of ​​the conveyor belt 4 and improve the protective effect.

[0046] In order to install the conveyor belt 4, in this embodiment, refer to Figure 5 and Figure 1The conveyor belt 4 is installed inside the laser cutting cavity 1 via the mounting base 5. The mounting base 5 is equipped with a pulley and a reversing roller 51. The conveyor belt 4 is sleeved between the pulley and multiple reversing rollers 51. The pulley is located in the discharge area 303 and is connected to the drive motor 52. A reversing roller 51 is installed at the corner between the vertical rotation area 304 and the horizontal rotation area 305, at the corner between the horizontal rotation area 305 and the adsorption area 301, and at the corner between the adsorption area 301 and the separation area 302. The mounting base 5 is fixedly connected to the fixed section 62 of the protective plate 6 at the corner between the vertical rotation area 304 and the horizontal rotation area 305.

[0047] Understandably, the mounting base 5 is roughly in the shape of a right trapezoid. At each of the four corners of the mounting base 5, there is a pulley and three reversing rollers 51. The pulley is located at the acute corner of the discharge area 303. The reversing roller 51 between the adsorption area 301 and the separation area 302 is located at the obtuse corner. The other two reversing rollers 51 are located at the two right corners, so that the conveyor belt 4 is in the shape of a right trapezoid. This naturally forms three straight vertical rotation areas 304, a horizontal rotation area 305, and an adsorption area 301, as well as an inclined separation area 302. The discharge area 303 is located at the acute corner, away from the laser cutting cavity 1, and is also suitable for installing a pulley with a slightly larger diameter, which can better drive the conveyor belt 4 to rotate.

[0048] In order to adsorb the edge material 102 of the electrode sheet, in this embodiment, reference is made to Figure 5 The mounting base 5 is provided with a negative pressure chamber 53 leading to the adsorption zone 301 and the separation zone 302. The conveyor belt 4 is provided with a vent hole 41 that cooperates with the negative pressure chamber 53. The negative pressure chamber 53 is connected to an external air source through a negative pressure pipe 54. The adsorption zone 301 and the separation zone 302 generate suction force through the negative pressure chamber 53 to adsorb the edge material 102 onto the conveyor belt 4.

[0049] It is understandable that the suction area generated by the negative pressure chamber 53 covers the adsorption zone 301 and the separation zone 302. The vent 41 on the conveyor belt 4 can apply the suction generated by the negative pressure chamber 53 to the electrode edge material 102. In the adsorption zone 301, the conveyor belt 4 adsorbs the edge material 102 and the electrode body 101 together. In the separation zone 302, the electrode body 101 will separate from the edge material 102. The edge material 102 is transported to the discharge zone 303 along with the conveyor belt 4.

[0050] In order to separate the edge material 102 from the electrode body 101, in this embodiment, reference is made to... Figure 1 and Figure 5The conveyor belt 4 of the separation zone 302 is inclined away from the electrode sheet. The adsorption roller 7 is located outside the separation zone 302. The adsorption roller 7 is provided with multiple adsorption holes 71. The adsorption roller 7 adsorbs the electrode sheet body 101 through the multiple adsorption holes 71 that generate negative pressure. The conveyor belt 4 of the separation zone 302 pulls the edge material 102 to separate it from the electrode sheet body 101.

[0051] It is understandable that the adsorption roller 7 and the separation zone 302 are at the same height. The conveyor belt 4 adsorbs the edge material 102, the adsorption roller 7 adsorbs the electrode body 101, and the adsorption roller 7 pulls the electrode body 101 and the edge material 102 to gradually separate, so as to avoid interference between the edge material 102 and the electrode body 101 and allow the edge material 102 to be discharged smoothly.

[0052] In order to quickly discharge the edge material 102, in this embodiment, refer to Figure 1 The discharge area 303 is located at the corner of the separation area 302 and the vertical rotation area 304. The discharge area 303 is provided with a connecting shell 55, which is wrapped around the outside of the conveyor belt 4 of the discharge area 303. The connecting shell 55 is provided with a discharge pipe 56, which is parallel to the width direction of the conveyor belt 4. The discharge pipe 56 sucks away the dust attached to the conveyor belt 4 through negative pressure.

[0053] Understandably, the edge material 102 formed by laser cutting is set as a continuous strip of waste. The edge material 102 is transported to the discharge area 303 by the conveyor belt 4. The negative pressure chamber 53 has no suction in the discharge area 303. The discharge pipe 56 installed on the discharge area 303 through the connecting shell 55 has suction, thereby transferring the edge material 102 from the conveyor belt 4 to the discharge pipe 56. The suction of the discharge pipe 56 can act on the large area of ​​the conveyor belt 4 through the connecting shell 55, sucking away some dust on the conveyor belt 4 and ensuring the cleanliness of the conveyor belt 4.

[0054] In the working process of this application, the laser generator first generates a laser beam. After being controlled by the galvanometer and focused by the field lens 201, the laser beam shines through the window 32 onto the electrode at the laser cutting position 11. Figure 2 Figure 2 Figure 1 Figure 3 Figure 2 Figure 4 As shown, the laser moves along a prescribed trajectory to cut out the required electrode tabs. During the electrode tab laser cutting process, the edge material 102 is adsorbed by the conveyor belt 4, and the electrode body 101 is adsorbed by the adsorption roller 7, thus completing the separation of the edge material 102. The edge material 102 is transported by the conveyor belt 4 to the discharge area 303 and then transported to the waste collector through the discharge pipe 56 for collection. The electrode body 101 with the formed tabs then enters the next process.

[0055] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A laser cutting mechanism for avoiding dust and laser damage to a conveyor belt, characterized in that, The system includes a guide roller, a laser cutting cavity, and an adsorption roller arranged sequentially along the electrode conveyor path. The laser cutting cavity has a laser cutting position at its center for performing electrode tab laser cutting on the electrode. A conveyor belt is positioned on the side of the electrode facing away from the field mirror, with the electrode as the boundary. The conveyor belt circulates between an adsorption zone, a separation zone, a discharge zone, a vertical rotation zone, and a horizontal rotation zone. In the adsorption zone, the conveyor belt uses negative pressure to adsorb the electrode body and edge material. In the separation zone, the edge material adsorbed by the conveyor belt cooperates with the adsorption roller adsorbing the electrode body to separate the edge material from the electrode body. In the operation, the conveyor belt separates from the edge material in the discharge area. The separation area, discharge area, and vertical rotation area are located outside the laser cutting cavity. The adsorption area and horizontal rotation area are located inside the laser cutting cavity and within the dust splash and laser scattering area. Dust and scattered laser directed towards the conveyor belt in the adsorption area are shielded by the electrode body and edge material. A protective plate is provided on the side of the horizontal rotation area near the laser cutting position. The protective plate is parallel to one side of the conveyor belt in the horizontal rotation area. Dust and scattered laser directed towards the conveyor belt in the horizontal rotation area are shielded by the protective plate.

2. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 1, characterized in that, A pressure roller is provided inside the laser cutting cavity. The pressure roller is located close to the laser cutting position. The electrode body and the edge material are sandwiched between the conveyor belt and the pressure roller in the adsorption zone by rolling.

3. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 2, characterized in that, An adjustment roller assembly is provided on the outside of the laser cutting cavity. The adjustment roller assembly, the laser cutting position, and the pressure roller are arranged sequentially along the electrode belt path. The distance between the laser cutting position and the adjustment roller assembly and the pressure roller is less than 40mm.

4. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 2, characterized in that, The pressure roller is a steel roller.

5. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 1, characterized in that, The protective plate has a curved section at the corner between the transverse rotation zone and the adsorption zone, and the curved section extends toward the contact position between the conveyor belt and the electrode in the adsorption zone.

6. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 1, characterized in that, The conveyor belt is mounted inside the laser cutting cavity via a mounting base. The mounting base is equipped with a pulley and reversing rollers. The conveyor belt is sleeved between the pulley and multiple reversing rollers. The pulley is located in the discharge area and is connected to a drive motor. A reversing roller is installed at the corner between the vertical and horizontal rotation areas, the corner between the horizontal rotation area and the adsorption area, and the corner between the adsorption area and the separation area. The mounting base is fixedly connected to the fixed section of the protective plate at the corner between the vertical and horizontal rotation areas.

7. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 6, characterized in that, The mounting base is provided with a negative pressure chamber leading to the adsorption zone and the separation zone. The conveyor belt is provided with a vent hole that cooperates with the negative pressure chamber. The negative pressure chamber is connected to an external air source through a negative pressure pipe. The adsorption zone and the separation zone generate suction force through the negative pressure chamber to adsorb the edge material onto the conveyor belt.

8. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 1, characterized in that, The conveyor belt in the separation zone is inclined away from the electrode. The adsorption roller is located outside the separation zone and has multiple adsorption holes. The adsorption roller adsorbs the electrode body through the multiple adsorption holes that generate negative pressure. The conveyor belt in the separation zone pulls the edge material away from the electrode body.

9. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 1, characterized in that, The discharge area is located at the corner of the separation area and the vertical turning area. The discharge area is equipped with a connecting shell, which is wrapped around the outside of the conveyor belt in the discharge area. The connecting shell is equipped with a discharge pipe, which is parallel to the width direction of the conveyor belt. The discharge pipe sucks away the dust attached to the conveyor belt through negative pressure.

10. The laser cutting mechanism for avoiding dust and laser damage to the conveyor belt according to claim 1, characterized in that, It also includes a first base and a second base, which are connected by a sliding rod. A laser cutting cavity is formed between the first base and the second base. Both the first base and the second base are provided with air blowing plates on the same inner wall of the laser cutting cavity. The first base is provided with a dust suction port for an external dust suction pipe on the other side of the laser cutting cavity. The air blowing plates blow air along the width direction of the electrode sheet. The blowing direction of the air is parallel to the protective plate. The air flow blows the dust generated by the laser cutting electrode sheet toward the dust suction port.

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