Laser die cutting equipment

Abstract

The present invention discloses a laser die-cutting device for die-cutting a pole piece, comprising a laser die-cutter, a waste adsorption component, a negative pressure box and a negative pressure device. The laser die-cutter and the waste adsorption component are sequentially arranged along the transmission direction of the pole piece. The laser die-cutter is provided with a laser cavity and a through groove connected to the laser cavity. The pole piece passes through the through groove. One side of the waste adsorption component contacts the pole piece. The other side of the waste adsorption component is provided with a negative pressure box. The negative pressure box is provided with a first negative pressure cavity and a first negative pressure hole connected to the first negative pressure cavity. The first negative pressure hole is arranged on one side of the negative pressure box close to the waste adsorption component. The waste adsorption component is evenly provided with a plurality of through holes. The laser cavity is connected to the first negative pressure cavity and the negative pressure device. The laser die-cutting device provided by the present invention can ensure that no flying chips are generated during the die-cutting process and can drive the waste away from the pole piece through the waste adsorption component.

Description

Technical Field

[0001] The invention relates to the technical field of die-cutting devices, and in particular to laser die-cutting equipment. Background Art

[0002] The battery manufacturing industry is developing rapidly. In the process of producing battery cells, pole piece forming is an important process in battery manufacturing. Laser die-cutting machines are required to cut pole pieces into different specifications and sizes. Laser die-cutting machines will produce flying chips during the die-cutting process, which will cause a lot of dust during the die-cutting process. Flying chips are easily attached to the pole pieces, which means that the pole pieces need to be dusted after die-cutting before they can be put into use, resulting in low production efficiency of die-cutting. In addition, the existing laser die-cutting machines may still have waste materials adhered to the pole pieces after laser die-cutting, resulting in low reliability of die-cutting. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a laser die-cutting device to solve the problems of poor dust removal effect and low die-cutting reliability of traditional laser die-cutting machines.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: to provide a laser die-cutting equipment for die-cutting a pole piece, comprising a laser die-cutter, a waste adsorption assembly, a negative pressure box and a negative pressure device, wherein the laser die-cutter and the waste adsorption assembly are arranged in sequence along the transmission direction of the pole piece, the laser die-cutter is provided with a laser cavity and a through groove connected to the laser cavity, the pole piece passes through the through groove, one side of the waste adsorption assembly is in contact with the pole piece, the other side of the waste adsorption assembly is provided with the negative pressure box, the negative pressure box is provided with a first negative pressure cavity and a first negative pressure hole connected to the first negative pressure cavity, the first negative pressure hole is provided on the side of the negative pressure box close to the waste adsorption assembly, the waste adsorption assembly is evenly provided with a plurality of through holes, the laser cavity is connected to the first negative pressure cavity and the negative pressure device.

[0005] Furthermore, the waste adsorption assembly includes a negative pressure belt, a belt driving member and at least two first rollers, the belt driving member is transmission-connected to the first rollers, the negative pressure belt is transmission-connected to the first rollers, the negative pressure box is provided between two adjacent first rollers, and the through hole is provided on the negative pressure belt.

[0006] Furthermore, the length direction of the waste adsorption assembly is inclined relative to the transmission direction of the pole piece.

[0007] Furthermore, it also includes a second roller and a dust cover arranged in pairs, the pole piece is wound on the second roller so that the pole piece forms a curved portion, the dust cover is arranged at a position corresponding to the curved portion, and the dust covers arranged in pairs are respectively arranged on both sides of the transmission direction of the pole piece.

[0008] Furthermore, the dust removal hood is provided with an arc-shaped opening.

[0009] Furthermore, it also includes a double-sided dust removal component, which includes a dust removal drive component and two brush components. The two brush components are both transmission-connected to the dust removal drive component, the two brush components are arranged opposite to each other, and a channel is formed between the two brush components, and the pole piece passes through the channel.

[0010] Furthermore, the double-sided dust removal assembly also includes two brush holders, and the two brush members are respectively arranged on the two brush holders. The brush holders are provided with a dust blocking groove and a second negative pressure chamber in sequence along the vertical direction directly below the brush members, and the bottom of the dust blocking groove is provided with a second negative pressure hole connected to the second negative pressure chamber.

[0011] Furthermore, it also includes a driving wheel assembly, which includes a driving wheel bracket and a downward pressure cylinder, a downward pressure roller, an active roller and a dust removal brush arranged in sequence along the vertical direction downward, the pole piece is arranged between the downward pressure roller and the active roller, the downward pressure cylinder is transmission-connected to the downward pressure roller, the driving wheel bracket is provided with an installation groove and a third negative pressure chamber, the active roller is arranged in the installation groove, the bottom of the installation groove is provided with a third negative pressure hole connected to the third negative pressure chamber, and the third negative pressure chamber is connected to the negative pressure device.

[0012] Furthermore, the laser die cutter includes a laser cover, a field mirror, a laser driver, an adjustment member, a first guide rail, a second guide rail and a base, the laser cover is connected to the base, the laser cover is provided with the laser cavity, the through groove and the light inlet, the base is arranged on the first guide rail, the laser driver is connected to the base in a transmission manner to drive the base to slide along the first guide rail, the second guide rail is arranged on the base, the field mirror is arranged on the second guide rail, and the field mirror is arranged corresponding to the light inlet, and the adjustment member is connected to the field mirror in a transmission manner to drive the field mirror to approach or move away from the laser cover along the second guide rail.

[0013] Furthermore, it comprises two laser die cutters, which are respectively arranged on both sides of the transmission direction of the pole piece.

[0014] The beneficial effects of the present invention are as follows: the laser die-cutting equipment provided by the present invention forms a pole piece by die-cutting on the pole piece through a laser die-cutter, and the pole piece is laser die-cut in a laser cavity. The laser cavity will generate negative pressure under the action of a negative pressure device, and the flying chips generated during the die-cutting process will be sucked to the negative pressure device by negative pressure. When the laser die-cutting equipment completes die-cutting, the waste adsorption component contacts the pole piece to contact the waste still adhered to the pole piece after laser die-cutting and drive the waste to fall off the pole piece. Therefore, the laser die-cutting equipment provided by the present invention can ensure that no flying chips are generated during the die-cutting process and avoid flying chips sticking to the pole piece to affect the die-cutting quality, and ensure that the waste can fall off the pole piece after laser die-cutting, thereby improving the die-cutting processing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the laser die-cutting device according to the present invention in one embodiment;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the laser die cutter and the waste adsorption assembly;

[0017] Figure 3 for Figure 1 Structural explosion diagram of the waste adsorption component;

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the middle dust cover and the second roller;

[0019] Figure 5 for Figure 4 A cross-sectional view of the middle dust cover and the second roller;

[0020] Figure 6 for Figure 1 The structural diagram of the laser die cutter;

[0021] Figure 7 for Figure 6 A magnified view of the structure of part A;

[0022] Figure 8 for Figure 1 Schematic diagram of the structure of the medium negative pressure device

[0023] Fig. 9 for Figure 1 A schematic diagram of the structure of the double-sided dust removal assembly;

[0024] Fig.10 for Figure 1 Schematic diagram of the structure of the middle drive wheel assembly.

[0025] Description of labels:

[0026] 1. Laser die cutter; 11. Laser cover; 111. Through slot; 112. Light inlet; 12. Field lens; 13. Laser driver; 14. Adjustment member; 141. Adjustment screw rod; 142. Adjustment knob; 143. Scale; 144. Adjustment seat; 15. First guide rail; 16. Second guide rail; 17. Base; 171. Guide hole; 18. Laser generator;

[0027] 2. waste adsorption component; 21. negative pressure belt; 211. through hole; 212. positioning protrusion; 22. belt driving member; 23. first roller; 231. second positioning groove;

[0028] 3. Negative pressure box; 31. First negative pressure hole; 32. First positioning groove;

[0029] 4. Negative pressure device; 41. Dust collecting box; 42. Negative pressure pump; 43. Negative pressure interface;

[0030] 5. Second roller;

[0031] 6. Dust cover; 61. Arc strip opening;

[0032] 7. Pole piece; 71. Bend portion;

[0033] 8. Double-sided dust removal assembly; 81. Dust removal drive member; 82. Brush member; 83. Channel; 84. Brush bracket; 841. Dust blocking groove; 842. Second negative pressure hole;

[0034] 9. Driving wheel assembly; 91. Driving wheel bracket; 92. Pressing cylinder; 93. Pressing roller; 94. Active roller; 95. Dust removal brush; 96. Driving motor. DETAILED DESCRIPTION

[0035] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0036] Please refer to Figures 1 to 10The present invention provides a laser die-cutting device for die-cutting a pole piece 7, comprising a laser die-cutter 1, a waste adsorption component 2, a negative pressure box 3 and a negative pressure device 4, wherein the laser die-cutter 1 and the waste adsorption component 2 are arranged in sequence along the transmission direction of the pole piece 7, the laser die-cutter 1 is provided with a die-cutting cavity and a through groove 111 connected to the die-cutting cavity, the pole piece 7 passes through the through groove 111, one side of the waste adsorption component 2 is in contact with the pole piece 7, the other side of the waste adsorption component 2 is provided with the negative pressure box 3, the negative pressure box 3 is provided with a first negative pressure cavity and a first negative pressure hole 31 connected to the first negative pressure cavity, the first negative pressure hole 31 is arranged on the side of the negative pressure box 3 close to the waste adsorption component 2, the waste adsorption component 2 is evenly provided with a plurality of through holes 211, the die-cutting cavity is connected to the first negative pressure cavity and the negative pressure device 4.

[0037] From the above description, it can be seen that the beneficial effects of the present invention are: the laser die-cutting equipment provided by the present invention forms a pole ear on the pole piece 7 through a laser die-cutter 1, and the pole piece 7 is laser die-cut in the die-cutting cavity. The die-cutting cavity will generate negative pressure under the action of the negative pressure device 4, and the flying chips generated during the die-cutting process will be sucked to the negative pressure device 4 by negative pressure. When the laser die-cutting equipment completes the die-cutting, the waste adsorption component 2 contacts the pole piece 7 to contact the waste still adhered to the pole piece 7 after the laser die-cutting and drive the waste to fall off the pole piece 7. Therefore, the laser die-cutting equipment provided by the present invention can ensure that no flying chips are generated during the die-cutting process and avoid flying chips sticking to the pole piece to affect the die-cutting quality, and ensure that the waste can fall off the pole piece 7 after laser die-cutting, thereby improving the die-cutting processing efficiency and quality.

[0038] Furthermore, the waste adsorption assembly 2 includes a negative pressure belt 21, a belt driving member 22 and at least two first rollers 23, the dust removal driving member 81 is transmission connected to the first roller 23, the negative pressure belt is transmission connected to the first roller 23, the negative pressure box 3 is provided between two adjacent first rollers 23, and the through hole 211 is provided on the negative pressure belt 21.

[0039] As can be seen from the above description, the negative pressure belt 21 rotates under the action of the belt driving member 22 and the first roller 23 , which can improve the reliability of the waste adsorption assembly 2 driving the waste to separate from the pole piece 7 .

[0040] Furthermore, the length direction of the waste adsorption assembly 2 is inclined relative to the transmission direction of the pole piece 7 .

[0041] From the above description, it can be seen that only a partial area of ​​the inclined waste adsorption component 2 is in contact with the pole piece 7, so as to improve its efficiency and reliability in driving the waste away from the pole piece 7, and avoid excessive contact area between the waste adsorption component 2 and the pole piece to affect the unwinding of the pole piece 7.

[0042] Furthermore, it also includes a second roller 5 and a dust cover 6 arranged in pairs, the pole piece 7 is wound on the second roller 5 so that the pole piece 7 forms a bending portion 71, the dust cover 6 is arranged at a position corresponding to the bending portion 71, and the dust cover 6 arranged in pairs are respectively arranged on both sides of the transmission direction of the pole piece 7.

[0043] From the above description, it can be seen that the dust cover 6 can further absorb the flying debris and dust on the pole piece 7, thereby further improving the cleanliness of the pole piece 7, ensuring that the pole piece 7 can meet the use requirements, and avoiding the pole piece 7 from undergoing a secondary cleaning process.

[0044] Furthermore, the dust cover 6 is provided with an arc-shaped opening 61 .

[0045] It can be seen from the above description that the arc-shaped strip opening corresponds to the setting of the curved portion 71 to improve the dust collection effect of the dust removal cover 6.

[0046] Furthermore, it also includes a double-sided dust removal component 8, which includes a dust removal drive component 81 and two brush components 82. The two brush components 82 are both transmission-connected to the dust removal drive component 81, the two brush components 82 are arranged opposite to each other, and a channel 83 is formed between the two brush components 82, and the pole piece 7 passes through the channel 83.

[0047] From the above description, it can be seen that the double-sided dust removal component 8 can be arranged between the waste adsorption component 2 and the dust cover 6, so that the debris on both sides of the pole piece 7 can be swept away by the double-sided dust removal component 8, and then the debris can be sucked away by the dust cover 6.

[0048] Furthermore, the double-sided dust removal assembly 8 also includes two brush brackets 84, and the two brush members 82 are respectively arranged on the two brush brackets 84. The brush brackets 84 are provided with a dust blocking groove 841 and a second negative pressure cavity in sequence along the vertical direction downward directly below the brush members 82, and the bottom of the dust blocking groove 841 is provided with a second negative pressure hole 842 connected to the second negative pressure cavity.

[0049] It can be seen from the above description that the debris and dust swept away by the brush member 82 can fall into the dust blocking groove 841 and be sucked and collected to the negative pressure device 4 to prevent the debris and dust from floating in the air and adhering to the pole piece 7.

[0050] Furthermore, it also includes a driving wheel assembly 9, which includes a driving wheel bracket 91 and a downward pressure cylinder 92, a downward pressure roller 93, an active roller 94 and a dust removal brush 95 which are arranged in sequence along the vertical direction downward, the pole piece 7 is arranged between the downward pressure roller 93 and the active roller 94, the downward pressure cylinder 92 is transmission-connected with the downward pressure roller 93, the driving wheel bracket 91 is provided with a mounting groove and a third negative pressure chamber, the active roller 94 is arranged in the mounting groove, the bottom of the mounting groove is provided with a third negative pressure hole connected to the third negative pressure chamber, and the third negative pressure chamber is connected to the negative pressure device 4.

[0051] From the above description, it can be known that the driving wheel assembly 9 presses the pole piece 7 through the pressure roller 93 and the active roller 94, and drives the pole piece 7 to move through active rotation. In the process of the active roller 94 pressing the pole piece 7, the waste debris attached to the pole piece 7 will be attached to the active roller 94, and the dust removal brush 95 can brush off the waste debris on the active roller 94 to prevent the active roller 94 from bringing the waste debris to the pole piece 7 again.

[0052] Furthermore, the laser die cutter 1 includes a laser cover 11, a field lens 12, a laser driver 13, an adjustment member 14, a first guide rail 15, a second guide rail 16 and a base 17. The laser cover 11 is connected to the base 17. The laser cover 11 is provided with the die-cutting cavity, the through groove 111 and the light inlet 112. The base 17 is arranged on the first guide rail 15. The laser driver 13 is transmission-connected to the base 17 to drive the base 17 to slide along the first guide rail 15. The second guide rail 16 is arranged on the base 17. The field lens 12 is arranged on the second guide rail 16, and the field lens 12 is arranged corresponding to the light inlet 112. The adjustment member 14 is transmission-connected to the field lens 12 to drive the field lens 12 to approach or move away from the laser cover 11 along the second guide rail 16.

[0053] From the above description, it can be seen that the distance between the light outlet of the field lens 12 and the pole piece 7 can be accurately adjusted by the adjusting member 14, and the laser die cutter 1 can be moved along the first guide rail 15 under the driving action of the laser driving member 13, so that the laser die cutter 1 can laser die-cut the pole ear on the pole piece 7.

[0054] Furthermore, two laser die cutters 1 are included, and the two laser die cutters 1 are respectively arranged on both sides of the transmission direction of the pole piece 7.

[0055] It can be seen from the above description that the laser die cutter 1 can simultaneously laser die cut the pole ears on both sides of the pole piece 7 , thereby improving the efficiency of die cutting of the pole piece 7 .

[0056] Embodiment 1

[0057] Please refer to Figures 1 to 10The first embodiment of the present invention is to provide a laser die-cutting device for laser die-cutting a pole ear on a pole piece 7. In this embodiment, the laser die-cutting device includes a negative pressure device 4 and a laser die-cutter 1, a waste adsorption assembly 2, a driving wheel assembly 9, a double-sided dust removal assembly 8, and a second roller 5 which are sequentially arranged along the transmission direction of the pole piece 7.

[0058] In this embodiment, the laser die cutter 1 and the waste adsorption component 2 are arranged in sequence downward in the vertical direction. A waste hopper is also arranged directly below the waste adsorption component 2. The waste of the pole piece after die cutting may still be adhered to the pole piece 7. The waste adsorption component 2 can contact the pole piece 7 and the waste, and drive the waste to separate from the pole piece 7, and the waste can fall into the waste hopper. The laser die cutter 1 includes a laser cover 11, a laser generator 18 and a field lens 12, wherein the laser generator 18 is connected to the field lens 12, the laser cover 11 is provided with the die cutting cavity, the through slot 111 and the light inlet 112, the light inlet 112 and the through slot 111 are both connected to the die cutting cavity, the pole piece 7 passes through the through slot 111, the field lens 12 is arranged corresponding to the light inlet 112, the field lens 12 is used to focus the laser of the laser generator 18 to form a high-power laser beam, and to inject the high-power laser beam into the die cutting cavity through the light inlet 112 and project it to the pole piece 7, so as to die cut the pole piece 7 to form a pole ear through the laser beam. The die cutting cavity is connected to the negative pressure device 4, so that a negative pressure effect can be generated in the die cutting cavity to suck away the flying chips generated during the die cutting process.

[0059] Please refer to Figure 2 and Figure 6 In this embodiment, the laser die cutter 1 also includes a laser driving member 13, an adjusting member 14, a first guide rail 15, a second guide rail 16 and a base 17. The laser driving member 13 is connected to the base 17 in a transmission manner to drive the base 17 to slide along the first guide rail 15. The second guide rail 16 is arranged on the base 17. The field lens 12 is arranged on the second guide rail 16, and the field lens 12 is arranged corresponding to the light entrance 112. The adjusting member 14 is connected to the field lens 12 in a transmission manner to drive the field lens 12 to approach or move away from the laser cover 11 along the second guide rail 16. A guide hole 171 extending along the length direction of the second guide rail 16 is provided on the base 17. The laser generator 18 passes through the guide hole 171 so that the laser generator 18 can move in the guide hole 171 during the process of adjusting the distance between the field lens 12 and the laser cover 11.

[0060] In detail, in the present embodiment, the adjusting member 14 includes an adjusting screw 141, an adjusting knob 142, a scale 143 and an adjusting seat 144, wherein the adjusting knob 142 is connected to the adjusting screw 141, the adjusting screw 141 is threadedly connected to the adjusting seat 144, and the adjusting seat 144 is slidably disposed on the second slide rail, and the scale 143 is disposed on the base 17. In the present embodiment, the distance between the light outlet of the field lens 12 and the laser cover 11 can be accurately adjusted by the adjusting member 14, thereby improving the accuracy of the laser beam debugging of the laser die-cutting device and improving the die-cutting accuracy of the pole piece 7.

[0061] Please refer to Figure 3 In this embodiment, the waste adsorption assembly 2 includes a negative pressure belt 21, a belt driving member 22 and at least two first rollers 23, the belt driving member 22 is transmission-connected to the first rollers 23, the negative pressure belt is transmission-connected to the first rollers 23, the negative pressure box 3 is provided between two adjacent first rollers 23, and the through hole 211 is provided on the negative pressure belt 21; and the length direction of the waste adsorption assembly 2 is inclined relative to the transmission direction of the pole piece.

[0062] Only a partial area of ​​the negative pressure belt 21 is in contact with the electrode 7, and the contact area between the two is small. Therefore, the negative pressure belt 21 will not affect the unwinding of the electrode 7, and under the negative pressure effect of the negative pressure box 3, the negative pressure belt 21 can adsorb the waste adhered to the electrode 7, so as to adsorb the waste on the negative pressure belt 21 and drive the waste away from the electrode 7.

[0063] In detail, in the present embodiment, in order to ensure the negative pressure effect of the negative pressure belt 21, a positioning protrusion 212 is provided on the inner side of the negative pressure belt 21, a first positioning groove 32 is provided on the negative pressure box 3 corresponding to the positioning protrusion 212, and a second positioning groove 231 is provided on the first roller 23 corresponding to the positioning protrusion 212, so as to ensure that the through hole 211 of the negative pressure belt 21 is aligned with the first negative pressure hole 31 during the rotation process.

[0064] Please refer to Fig.10In this embodiment, the pole piece 7 can be moved under the transmission action of the driving wheel assembly 9, wherein the driving wheel assembly 9 includes a driving wheel bracket 91 and a downward pressure cylinder 92, a downward pressure roller 93, an active roller 94 and a dust removal brush 95 arranged in sequence along the vertical direction downward, the active roller 94 is connected to the driving motor 96, the pole piece 7 is arranged between the downward pressure roller 93 and the active roller 94, the downward pressure cylinder 92 is transmission-connected with the downward pressure roller 93, and the downward pressure cylinder 92 drives the downward pressure roller 93 and the active roller 94 to clamp the pole piece 7 therebetween, and the pole piece 7 can be driven to move during the rotation of the active roller 94, the driving wheel bracket 91 is provided with a mounting groove and a third negative pressure chamber, the active roller 94 is arranged in the mounting groove, the bottom of the mounting groove is provided with a third negative pressure hole connected to the third negative pressure chamber, and the third negative pressure chamber is connected to the negative pressure device 4. When the active roller 94 presses the pole piece 7 , the waste attached to the pole piece 7 will be attached to the active roller 94 . The dust removal brush 95 can brush away the waste on the active roller 94 to prevent the active roller 94 from bringing the waste to the pole piece 7 again.

[0065] In this embodiment, a double-sided dust removal assembly 8 is also provided to remove dust from the two sides of the pole piece 7. The double-sided dust removal assembly 8 includes a dust removal drive 81, two brush members 82 and two brush holders 84. The two brush members 82 are both connected to the dust removal drive 81 in a transmission manner. The two brush members 82 are arranged opposite to each other, and a channel 83 is formed between the two brush members 82, and the pole piece 7 passes through the channel 83. The two brush members 82 are respectively arranged on the two brush holders 84. The brush holders 84 are respectively provided with a dust blocking groove 841 and a second negative pressure cavity in a vertical direction downwardly corresponding to the lower part of the brush members 82. The bottom of the dust blocking groove 841 is provided with a second negative pressure hole 842 connected to the second negative pressure cavity. The two brush members 82 can brush away the debris on both sides of the pole piece 7, respectively, and block the debris through the dust blocking groove 841, and collect the debris to the negative pressure device 4 through the negative pressure.

[0066] In order to further ensure that no debris is attached to the pole piece 7, the laser die-cutting device further includes a dust cover 6 arranged in pairs. In this embodiment, the pole piece 7 will be wound on the second roller 5 after passing through the double-sided dust removal assembly 8, so that the pole piece 7 forms a curved portion 71. The dust cover 6 is arranged corresponding to the position of the curved portion 71, and the dust cover 6 arranged in pairs is respectively arranged on both sides of the transmission direction of the pole piece 7. In detail, in order to ensure the negative pressure effect of the dust cover 6 on the pole piece 7, the dust cover 6 is provided with a circular arc strip opening 61 to match the shape of the curved portion 71. Preferably, the central angle a of the circular arc strip opening 61 is 120 degrees.

[0067] In detail, in this embodiment, the negative pressure device 4 includes a dust box 41, a negative pressure pump 42 and a negative pressure interface 43 arranged on the dust box 41, the dust box 41 is connected to the negative pressure pump 42, and the dust box 41 is connected to the laser cavity, the first negative pressure cavity, the second negative pressure cavity, and the third negative pressure cavity through the negative pressure interface 43.

[0068] Preferably, two laser die cutters 1 are provided in the present embodiment, and the two laser die cutters 1 are respectively arranged on both sides of the transmission direction of the pole piece 7, so that the laser die cutting equipment can die cut both sides of the pole piece 7 at the same time, thereby improving the processing production efficiency.

[0069] In this embodiment, two correcting mechanisms are further provided, one of which is used to perform correction before the pole piece 7 is laser die-cut to ensure the reliability of the pole piece 7 die-cutting material; the other correcting mechanism is arranged behind the laser second roller 5 to ensure the reliability of the pole piece 7 when the laser die-cutting equipment discharges the roll material.

[0070] To sum up, the laser die-cutting equipment provided by the present invention forms a pole ear on the pole piece 7 through a laser die-cutter 1, and the pole piece 7 is laser die-cut in the die-cutting cavity. The die-cutting cavity will generate negative pressure under the action of the negative pressure device 4, and the flying chips generated in the die-cutting process will be sucked to the negative pressure device 4 by negative pressure. When the laser die-cutting equipment completes the die-cutting, the waste adsorption component 2 contacts the pole piece 7 to contact the waste still adhered to the pole piece 7 after the laser die-cutting and drive the waste to fall off the pole piece 7. Therefore, the laser die-cutting equipment provided by the present invention can ensure that no flying chips are generated during the die-cutting process and avoid flying chips sticking to the pole piece to affect the die-cutting quality, and ensure that the waste can fall off the pole piece 7 after laser die-cutting, thereby improving the die-cutting processing efficiency and quality.

[0071] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laser die-cutting device for die-cutting a pole piece, characterized in that: It includes a laser die cutter, a waste adsorption component, a negative pressure box, a negative pressure device, a second roller, a dust cover arranged in pairs, a double-sided dust removal component and a driving wheel component, wherein the laser die cutter, the waste adsorption component, the driving wheel component, the double-sided dust removal component and the second roller are arranged in sequence along the transmission direction of the pole piece, the laser die cutter is provided with a laser cavity and a through groove connected to the laser cavity, the pole piece passes through the through groove, one side of the waste adsorption component is in contact with the pole piece, the other side of the waste adsorption component is provided with the negative pressure box, the negative pressure box is provided with a first negative pressure cavity and a first negative pressure hole connected to the first negative pressure cavity, the first negative pressure hole is arranged on the side of the negative pressure box close to the waste adsorption component, the waste adsorption component is evenly provided with a plurality of through holes, the laser cavity is connected to the first negative pressure cavity and the negative pressure device; The waste adsorption assembly comprises a negative pressure belt, a belt driving member and at least two first rollers, the belt driving member is connected to the first rollers by transmission, the negative pressure belt is connected to the first rollers by transmission, the negative pressure box is arranged between two adjacent first rollers, and the negative pressure belt is provided with the through hole; A positioning protrusion is provided on the inner side of the negative pressure belt, a first positioning groove is provided on the negative pressure box corresponding to the positioning protrusion, and a second positioning groove is provided on the first roller corresponding to the positioning protrusion; The length direction of the waste adsorption assembly is inclined relative to the transmission direction of the pole piece, so that only a part of the negative pressure belt contacts the pole piece; The pole piece is wound around the second roller so that the pole piece forms a curved portion, the dust cover is arranged corresponding to the position of the curved portion, and the dust cover arranged in pairs is respectively arranged on both sides of the transmission direction of the pole piece; The double-sided dust removal assembly includes a dust removal drive member and two brush members, the two brush members are both drivingly connected to the dust removal drive member, the two brush members are arranged opposite to each other, and a channel is formed between the two brush members, and the pole piece passes through the channel; The double-sided dust removal assembly also includes two brush holders, the two brush members are respectively arranged on the two brush holders, the brush holders are respectively provided with a dust blocking groove and a second negative pressure cavity in a vertical direction downwardly corresponding to the lower part of the brush member, and the bottom of the dust blocking groove is provided with a second negative pressure hole communicating with the second negative pressure cavity; The driving wheel assembly includes a driving wheel bracket and a downward pressure cylinder, a downward pressure roller, an active roller and a dust removal brush which are arranged in sequence along the vertical direction downward, the pole piece is arranged between the downward pressure roller and the active roller, the downward pressure cylinder is transmission-connected with the downward pressure roller, the driving wheel bracket is provided with an installation groove and a third negative pressure chamber, the active roller is arranged in the installation groove, the bottom of the installation groove is provided with a third negative pressure hole which is connected with the third negative pressure chamber, and the third negative pressure chamber is connected with the negative pressure device.

2. The laser die-cutting equipment according to claim 1, characterized in that: The dust removal cover is provided with an arc strip-shaped opening.

3. The laser die-cutting equipment according to claim 1, characterized in that: The laser die cutter includes a laser cover, a field mirror, a laser driver, an adjustment member, a first guide rail, a second guide rail and a base. The laser cover is connected to the base, and the laser cover is provided with the laser cavity, the through groove and the light inlet. The base is arranged on the first guide rail, the laser driver is connected to the base in a transmission manner to drive the base to slide along the first guide rail, the second guide rail is arranged on the base, the length direction of the first guide rail is perpendicular to the length direction of the second guide rail, the field mirror is arranged on the second guide rail, and the field mirror is arranged corresponding to the light inlet, and the adjustment member is connected to the field mirror in a transmission manner to drive the field mirror to approach or move away from the laser cover along the second guide rail.

4. The laser die-cutting equipment according to claim 1, characterized in that: It comprises two laser die cutters, which are respectively arranged on both sides of the transmission direction of the pole piece.

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