Battery pole piece laser fly cutting equipment

Abstract

A battery pole piece laser fly cutting device comprises a machine frame, a main installation plate, an unwinding module, middle transmission roller modules, a tension detection execution module, a deviation rectifying module, a reinforcing rib module and a laser cutting module, a roll material is installed on the outer side of an unwinding roller of the unwinding module, and supporting, steering and tensioning in the conveying process of a strip-shaped pole piece are achieved through a plurality of middle transmission rollers; the tension of the pole piece is monitored in real time, the state of a tension execution roller is detected, the unwinding speed is adjusted according to the detection result, so that the conveying tension of the pole piece is stabilized within a certain range, position deviation correction treatment is conducted in the conveying process, the upper surface and the lower surface of the pole piece are embossed before cutting, and the anti-folding capacity of the edge of the pole piece is improved; laser cutting is completed in the moving process; according to the laser fly-cutting equipment, pole pieces with different widths and sizes can be cut by adjusting the action space of each module, the cutting requirements of the pole pieces with different lengths are met, the working efficiency is high, and the cutting precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment for the production of battery electrodes, in particular to a laser flying cutting device for battery electrodes. Background Art

[0002] Battery electrodes are important components of batteries and constitute the core structure of batteries. Battery electrodes are divided into positive electrodes and negative electrodes, which are respectively coated with conductive agents and adhesives on specific materials and then attached to aluminum foils. The slitting of battery electrodes is completed by a slitting device. Since the thickness of some battery electrodes is only about 5 μm, the cutting tools in the prior art are not applicable. As a non-contact cutting device, the laser cutting device has irreplaceable advantages in the cutting field of battery electrodes. However, the current laser cutting method is static cutting, that is, after the product is conveyed in place, the product is first made to stand still, and then the laser is used for cutting, resulting in low cutting efficiency. Moreover, the end of the cut product is warped. The debris generated during the cutting process cannot be removed in time, resulting in the debris blocking the laser surface and being easily solidified into droplets on the product surface, affecting the product quality. The thickness, width, and incoming material diameter of battery electrodes are different, and the existing equipment cannot complete the compatibility of different products.

[0003] The utility model provides a laser flying cutting device for battery electrodes to solve the above technical problems. Content of the Utility Model

[0004] A laser flying cutting device for battery electrodes, comprising: a frame, a total mounting plate, an unwinding module, and an intermediate driving roller module, characterized in that it further comprises one or more of a belt receiving module, a tension detection and execution module, a deviation rectification module, a reinforcing rib module, and a laser cutting module. The total mounting plate is fixed on the side panel of the frame. The unwinding module, the intermediate driving roller module, the belt receiving module / tension detection and execution module / deviation rectification module / reinforcing rib module / laser cutting module are directly or indirectly installed on the frame and the total mounting plate. The intermediate driving roller module comprises one or more intermediate driving rollers, which play a role in supporting or / and redirecting or / and tensioning the battery electrodes during the conveying process between adjacent workstations. The belt receiving module selectively presses down on the passing electrode to prevent it from continuing to be conveyed or releases it for continued conveyance. The tension detection and execution module is used to monitor the tension in real time during the unwinding and conveying process of the electrode coil or / and adjust the tension in real time. The reinforcing rib module is used to perform embossing treatment on the two side edges of the electrode.

[0005] Preferably, for the laser flying cutting device for battery electrode sheets, the unwinding module includes an unwinding roller, an unwinding reduction motor, a first cylinder, and a first translation slide rail slider. The output end of the unwinding reduction motor is connected to the unwinding roller. The unwinding reduction motor is fixedly connected to the slider in the first translation slide rail slider through an unwinding reduction motor mounting plate. The first translation slide rail slider is fixed in the frame. The output end of the first cylinder is rotatably connected to the inner wall surface of the frame through a connecting block. The cylinder body of the first cylinder is directly or indirectly rotatably connected to the unwinding reduction motor mounting plate through a connecting block. The unwinding roller passes through the frame and the plate surface of the total mounting plate. The tension detection and execution module includes a tension sensor and a tension execution roller. The tension sensor is fixedly connected to the total mounting plate through a connecting plate. One intermediate transfer roller in the intermediate transmission roller module is mounted on the sensing end of the tension sensor through a mounting seat. The tension execution roller is rotatably mounted on the plate surface of the total mounting plate.

[0006] Preferably, for the laser flying cutting device for battery electrode sheets, the unwinding module further includes an intermediate transmission roller mounting plate and a transmission guide plate. The frame plate surface is processed with an avoidance hole. The intermediate transmission roller mounting plate is fixedly connected to the unwinding reduction motor mounting plate and extends to the other side through the avoidance hole on the frame plate surface. The intermediate transmission roller closest to the unwinding roller is rotatably mounted on the intermediate transmission roller mounting plate. The transmission guide plate is fixedly connected to the total mounting plate. The intermediate transmission roller mounting plate and the transmission guide plate are guided and connected through a slide rail slider.

[0007] Preferably, the laser flying cutting device for battery electrode sheets further includes a spare unwinding module. In addition to the structure of the unwinding module, the spare unwinding module further includes a spare unwinding module translation slide rail slider structure and an unwinding roller support frame. The translation slide rail slider structure is fixed on the bottom plate surface of the frame. The unwinding roller support frame is fixed on the upper plate surface of the slider of the spare unwinding module translation slide rail slider structure. The other end of the unwinding roller in the spare unwinding module is rotatably connected to the unwinding roller support frame.

[0008] Preferably, for the laser flying cutting equipment for battery electrode sheets, the tension detection and execution module further includes a tension adjustment cylinder, an electronic ruler, a tension transmission rolling bearing, a tension transmission plate, a rotating plate, a self-rotating rod, and a tension execution support plate. The tension adjustment cylinder is fixed to the inner wall surface of the frame through a tension adjustment cylinder mounting plate, and a push plate is installed at the end of the piston rod. The end of the electronic ruler is fixedly connected to the push plate, and the outer shell of the electronic ruler is in sliding contact with a translation support plate that is conformally matched. The translation support plate is fixed to the tension adjustment cylinder mounting plate. The tension execution support plate is fixedly connected to the surface of the total mounting plate. The self-rotating rod is rotatably installed on the tension execution support plate through a rolling bearing and a bearing seat. The self-rotating rod passes through the total mounting plate and one end of the frame and is fixedly connected to the tension transmission plate. The tension transmission rolling bearing is installed on the surface of the tension transmission plate. The self-rotating rod is fixedly connected perpendicular to the surfaces of the two rotating plates. The two ends of the tension execution roller are respectively rotatably connected to the same side of the two rotating plates.

[0009] Preferably, for the laser flying cutting equipment for battery electrode sheets, the tension detection and execution module further includes a counterweight roller and a counterweight block. The counterweight roller is installed on the other side of the two rotating plates, and the counterweight block is installed at the end of the tension transmission plate.

[0010] Preferably, for the laser flying cutting equipment for battery electrode sheets, the reinforcing rib module includes a reinforcing rib module support frame, an embossing roller, a smooth roller, a limiting plate, an embossing cylinder, and an embossing width adjustment screw rod. The reinforcing rib module support frame is fixedly connected to the surface of the total mounting plate. The embossing roller is installed through an embossing roller mounting plate. The embossing roller mounting plate is fixedly connected to the piston rod of the embossing cylinder. The embossing roller mounting plate is guided and connected to an embossing width adjustment plate through a lifting guide rail slider structure. The embossing width adjustment plate is fixedly connected to the screw nut in the embossing width adjustment screw rod. The embossing width adjustment screw rod is installed inside the reinforcing rib module support frame through a mounting seat. The cylinder body of the embossing cylinder is fixedly connected to the embossing width adjustment plate. The limiting plate is fixedly connected to the piston rod of the embossing cylinder. The two ends of the smooth roller are rotatably connected to the inner wall of the reinforcing rib module support frame. The tape connecting module includes a tape connecting support frame, a tape connecting cylinder, a tape connecting lifting shaft, and a tape connecting pressing plate. The tape connecting support frame is fixedly connected to the surface of the total mounting plate. The tape connecting lifting shaft is connected to the upper surface of the tape connecting support frame through a linear bearing. The upper end surface of the tape connecting lifting shaft is fixedly connected to the tape connecting pressing plate. The lower end surface of the tape connecting lifting shaft located inside the tape connecting support frame is fixedly connected through a tape connecting connecting plate. The cylinder body of the tape connecting cylinder is fixedly connected to the upper surface of the tape connecting support frame, and the piston rod is fixedly connected to the tape connecting connecting plate.

[0011] Preferably, for the laser flying cutting equipment for battery pole pieces, the laser cutting module includes a laser component, an X-axis lead screw, a Z-axis lead screw, an X-axis slide rail slider structure, a Z-axis slide rail slider structure, a laser component translation plate, and a cutting traction component, and further includes a dust removal component or / and an air knife. The laser module mounting plate is fixed on the plate surface of the total mounting plate. The X-axis lead screw is installed and connected to the laser module mounting plate through a mounting seat. The X-axis slide rail slider structure is fixed on the plate surface of the laser module mounting plate. The laser component translation plate is fixed to the lead screw nut of the X-axis lead screw and the slider of the X-axis slide rail slider structure. The laser component is fixed on the plate surface of the laser component mounting plate. The Z-axis lead screw is fixedly connected to the laser component translation plate through a connecting plate. The Z-axis slide rail slider structure is fixed on the plate surface of the laser component translation plate. The laser component mounting plate is connected to the lead screw nut of the Z-axis lead screw and fixed to the slider of the Z-axis slide rail slider structure. The cutting traction component includes a laser cutting support frame, a cutting traction motor, a traction roller, and a passive traction roller. The laser cutting support frame is fixed on the plate surface of the total mounting plate. The passive traction roller is rotatably connected to the laser cutting support frame through a passive traction roller mounting plate. The cutting traction motor is fixed on the plate surface of the laser cutting support frame and its output end is connected to the traction roller. The passive traction roller and the traction roller are arranged vertically. Above and / or below the cutting height formed by the traction roller and the passive traction roller, there is a dust removal component or / and an air knife.

[0012] Preferably, for the laser flying cutting equipment for battery pole pieces, it further includes a cutting size adjustment slide rail slider and a cutting support net. The cutting size adjustment slide rail slider is fixed on the bottom plate surface of the laser cutting support frame. The cutting traction component, the dust removal component or / and the air knife are all directly or indirectly connected to the slider of the cutting size adjustment slide rail slider. The plate surface of the cutting support net is provided with a traction roller avoidance hole. The middle large-diameter part of the traction roller protrudes from the traction roller avoidance hole. The battery pole piece to be cut passes through the upper plate surface of the cutting support net. The dust removal component includes an upper dust removal air hood and a lower dust removal air hood. The upper dust removal air hood is arranged on the upper plate surface of the cutting support net, and the lower dust removal air hood is arranged on the lower plate surface of the cutting support net. The two upper dust removal air hoods are respectively arranged on both sides of the laser cutting gap. Air knives are arranged above and below the cutting support net.

[0013] Preferably, for the laser flying cutting equipment for battery pole pieces, the cutting traction component further includes a second air cylinder or / and a limiting rod. The second air cylinder is fixedly connected to the laser cutting support frame through a connecting plate and its piston rod is fixedly connected to the passive traction roller mounting plate. The passive traction roller mounting plate is connected to the laser cutting support frame in a lifting and guiding manner through a Z-axis slide rail slider. The limiting rod is fixed to the mounting plate of the second air cylinder, and a limiting plate made of rubber is mounted on the plate surface of the passive traction roller mounting plate.

[0014] The working principle is as follows:

[0015] First, install the pole piece coil on the unwinding roller, and pass the battery pole piece through the intermediate driving roller module, tape connecting module, tension detection and execution module, deviation rectification module, stiffener module, and laser cutting module. During the transmission, the transmission tension is detected and adjusted at any time. When the tension is too large, the unwinding speed is increased; otherwise, the unwinding speed is slowed down. The lower and upper surfaces of the electrode piece are successively subjected to embossing and stiffening treatment. During the transmission process, when the deviation rectification induction structure senses a deviation from the middle position, the deviation rectification execution structure will adjust the horizontal position. The battery pole piece is cut into a set length under the action of the laser cutting module and flows out through the blanking plate. During the working process of the laser cutting module, the transmission speed of the battery pole piece remains unchanged. The laser assembly includes a galvanometer scanner, a laser, and a lens. The galvanometer scanner includes two motors and two lenses. Each motor controls the angular rotation of one lens, and the rotation speed of the lens angle is adjusted according to the transmission speed of the battery pole piece, so that the laser emitted from the lens moves synchronously with the electrode pole piece to complete "flying cutting".

[0016] The advantages are as follows:

[0017] The laser flying cutting equipment for battery pole pieces involved in the present utility model includes tension detection and execution, stiffener treatment, laser cutting, and deviation rectification treatment, which ensures the stability of the tension force during the transmission of the battery pole piece and avoids phenomena such as tearing due to the too thin battery pole piece. Moreover, the equipment can meet the continuous slicing of battery pole pieces with different thicknesses and widths, and has high versatility. Multiple laser assemblies are used, and the battery pole pieces are cut during movement, replacing the traditional static cutting method, which greatly improves the slicing efficiency. The transmission speed and flying cutting speed can be flexibly adjusted according to the thickness and anti-tearing ability of the battery pole piece to meet the high-efficiency cutting requirements of different battery pole pieces. Brief Description of the Drawings

[0018] The following further explains the specific implementation manners in conjunction with the drawings, where:

[0019] Figure 1 is the overall structural schematic diagram of a laser flying cutting equipment for battery pole pieces involved in the present utility model;

[0020] Figure 2 is the structural schematic diagram of the unwinding module involved in the present utility model;

[0021] Figure 3 is the structural schematic diagram of the tension detection and execution module involved in the present utility model;

[0022] Figure 4 is the structural schematic diagram of the tension deviation rectification module involved in the present utility model;

[0023] Figure 5a 、 5bIt is a schematic structural diagram of a reinforcing rib module for embossing the lower plate surface and the upper plate surface of a battery electrode plate respectively, which is related to the present utility model;

[0024] Figure 6 It is a schematic structural diagram of a laser cutting module related to the present utility model;

[0025] Figure 7 、 8 They are schematic structural diagrams of different perspectives of a partial laser cutting module related to the present utility model;

[0026] Figure 9 It is a schematic structural diagram of a tape splicing module related to the present utility model;

[0027] The specific structures corresponding to the numbers are as follows:

[0028] Frame 1, total mounting plate 2, unwind module 3, unwind roller 31, unwind reduction motor 32, first cylinder 33, first translation slide rail slider 34, intermediate drive roller mounting plate 35, drive guide plate 36, spare unwind module translation slide rail slider structure 37, unwind roller support frame 38, intermediate drive roller module 4 (not all marked in the figure), tension detection and execution module 5, tension sensor 51, tension execution roller 52, tension adjustment cylinder 53, electronic ruler 54, tension transmission rolling bearing 55, tension transmission plate 56, rotating plate 57, self-rotating rod 58, tension execution support plate 59, counterweight roller 510, counterweight block 511, reinforcement plate 512, deviation rectification module 6, deviation rectification induction structure 61, deviation rectification execution structure 62, reinforcing rib module 7, reinforcing rib module support frame 71, embossing roller 72, smooth roller 73, limiting plate 74, embossing cylinder 75, embossing width adjustment lead screw 76, laser cutting module 8, laser assembly 81, X-axis lead screw 82, Z-axis lead screw 83, X-axis slide rail slider structure 84, Z-axis slide rail slider structure 85, laser assembly translation plate 86, cutting traction assembly 87, laser cutting support frame 871, cutting traction motor 872, traction roller 873, passive traction roller 874, second cylinder 875, limiting rod 876, dust removal assembly 88, upper dust removal air hood 881, lower dust removal air hood 882, air knife 89, cutting support mesh 810, traction roller avoidance hole 8101, cutting size adjustment slide rail slider 811, tape splicing module 9, tape splicing support frame 91, tape splicing cylinder 92, tape splicing lifting shaft 93, tape splicing pressing plate 94,

[0029] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific embodiments

[0030] Specific embodiment 1:

[0031] A laser flying cutting device for battery electrode sheets, comprising a frame 1, a general mounting plate 2, an unwinding module 3, an intermediate driving roller module 4, a deviation rectifying module 6, and a laser cutting module 8. The general mounting plate 2 is fixed on the side panel of the frame 1. The unwinding module 3, the intermediate driving roller module 4, the deviation rectifying module 6, and the laser cutting module 8 are directly or indirectly mounted on the frame 1 and the general mounting plate 2. The intermediate driving roller module 4 includes one or more intermediate driving rollers, which play a role in supporting, redirecting, and tensioning the battery electrode sheets during the conveying process between adjacent workstations.

[0032] As Figure 2 shown, the unwinding module 3 includes an unwinding roller 31, an unwinding reduction motor 32, a first cylinder 33, and a first translation slide rail slider 34. The output end of the unwinding reduction motor 32 is connected to the unwinding roller 31. The unwinding reduction motor 32 is fixedly connected to the slider in the first translation slide rail slider 34 through an unwinding reduction motor mounting plate. The first translation slide rail slider 34 is fixed in the frame 1. The output end of the first cylinder 33 is rotatably connected to the inner wall surface of the frame 1 through a connecting block. The cylinder body of the first cylinder 33 is directly or indirectly rotatably connected to the unwinding reduction motor mounting plate through a connecting block. The unwinding roller 31 passes through the plate surfaces of the frame 1 and the general mounting plate 2.

[0033] The unwinding reduction motor 32 drives the unwinding roller 31 to rotate to complete the unwinding operation. The first cylinder 33 drives the unwinding reduction motor 32 to translate, changing the length dimension of the unwinding roller 31 extending out of the general mounting plate 2 to meet the feeding operations of different-width electrode sheet coils. Optionally, a small-range deviation rectifying operation can also be performed by moving the unwinding roller 31 back and forth.

[0034] Optionally, as Figure 2 shown, the unwinding module 3 further includes an intermediate driving roller mounting plate 35 and a transmission guiding plate 36. The plate surface of the frame 1 is processed with an avoidance hole. The intermediate driving roller mounting plate 35 is fixedly connected to the unwinding reduction motor mounting plate and extends to the other side through the avoidance hole on the frame plate surface. The intermediate driving roller closest to the unwinding roller 31 (such as Figure 2 the intermediate driving roller corresponding to the number 4 in

[0035] When there is a large difference in the width of the battery electrode sheet and it is necessary to adjust the position of the unwinding roller 31, the intermediate driving roller closest to it moves synchronously forward and backward, and the guiding connection with the driving guide plate 36 ensures the horizontality of the forward and backward translation. Optionally, it further includes a spare unwinding module. In addition to the structure of the unwinding module 3, the spare unwinding module further includes a translation slide rail slider structure 37 and an unwinding roller support frame 38. The translation slide rail slider structure 36 is fixed on the bottom surface of the frame 1, and the unwinding roller support frame 38 is fixed on the upper plate surface of the slider of the spare unwinding module translation slide rail slider structure 37. The other end of the unwinding roller in the spare unwinding module is rotatably connected to the unwinding roller support frame 38.

[0036] One of the two unwinding modules is in use and the other is in reserve; the unwinding roller support frame 38 can alternately support the ends of the two unwinding rollers 31 by translation, and indirectly support the coil material installed thereon.

[0037] As Figure 4 shown, the deviation rectification module 6 includes a deviation rectification induction structure 61 and a deviation rectification execution structure 62. The deviation rectification induction structure 61 and the deviation rectification execution structure 62 are both installed on the plate surface of the total mounting plate 2. The induction piece in the deviation rectification induction structure 61 senses the lateral position of the battery electrode sheet. When the deviation position exceeds the set range, position compensation is performed through the deviation rectification execution structure 62. Since the deviation rectification module 6 is a prior art, no detailed description will be given here.

[0038] The laser cutting module 8 can use a laser cutting device in the prior art.

[0039] Specific implementation case 2:

[0040] A laser flying cutting device for battery electrode sheets includes a frame 1, a total mounting plate 2, an unwinding module 3, an intermediate driving roller module 4, a tension detection and execution module 5, a deviation rectification module 6, and a laser cutting module 8. The total mounting plate 2 is fixed on the side panel of the frame 1. The unwinding module 3, the intermediate driving roller module 4, the deviation rectification module 6, and the laser cutting module 8 are directly or indirectly installed on the frame 1 and the total mounting plate 2. The intermediate driving roller module 4 includes one or more intermediate driving rollers, which play a role in supporting, redirecting, and tensioning the battery electrode sheet during the transmission between adjacent workstations. The tension detection and execution module 5 is used to monitor the tension in real time during the unwinding and transmission of the electrode sheet coil material and adjust the tension in real time.

[0041] As Figure 1 、 3 shown, the tension detection and execution module 5 includes a tension sensor 51 and a tension execution roller 52. The tension sensor 51 is fixedly connected to the total mounting plate 2 through a connecting plate. One of the intermediate transmission rollers in the intermediate driving roller module 4 (for example Figure 1The middle drive roller corresponding to the number 4 in the upper left corner) is installed at the sensing end of the tension sensor 51 through a mounting seat, and the tension value during the transmission of the battery pole piece is sensed by the tension sensor 51; the tension execution roller 52 is rotatably installed on the plate surface of the total mounting plate 2; the battery pole piece bypasses the tension execution roller 52, and the gravity of the tension execution roller 52 maintains the tension value during the transmission of the battery pole piece.

[0042] Optionally, the tension detection and execution module 5 further includes a tension adjustment cylinder 53, an electronic ruler 54, a tension transmission rolling bearing 55, a tension transmission plate 56, a rotating plate 57, a self-rotating rod 58, and a tension execution support plate 59. The tension adjustment cylinder 53 is fixed to the inner wall surface of the frame 1 through a tension adjustment cylinder mounting plate, and a push plate is installed at the end of the piston shaft. One end of the electronic ruler 54 is connected to the cylinder housing of the tension adjustment cylinder 53, and the other end is connected to the piston shaft of the tension adjustment cylinder 53. The tension execution support plate 59 is fixedly connected to the plate surface of the total mounting plate 2. The self-rotating rod 58 is rotatably installed on the tension execution support plate 59 through a rolling bearing and a bearing seat. One end of the self-rotating rod 58 passing through the total mounting plate 2 and the frame 1 is fixedly connected to the tension transmission plate 56. The tension transmission rolling bearing 55 is installed on the plate surface of the tension transmission plate 56. The self-rotating rod 58 is vertically and fixedly connected to the plate surfaces of the two rotating plates 57. The two end portions of the tension execution roller 52 are respectively rotatably connected to the same side of the two rotating plates 57.

[0043] The push plate at the end of the piston shaft of the tension adjustment cylinder 53 pushes the tension transmission rolling bearing 55, which will drive the tension transmission plate 56 to rotate and drive the self-rotating rod 58 to rotate. During the rotation of the self-rotating rod 58, the height of the tension execution roller 52 is changed, thereby changing the force applied to the battery pole piece. The electronic ruler 54 is used to detect whether the extension length of the piston shaft of the tension adjustment cylinder 53 changes; if it changes, it means that the tension execution roller is not in the equilibrium position, and the unwinding speed needs to be adjusted to restore it to the equilibrium state, so that the tension value during the transmission of the battery pole piece is always maintained within the set range.

[0044] Optionally, the tension detection and execution module 5 further includes a counterweight roller 510 and a counterweight block 511. The counterweight roller 510 is installed on the other side of the two rotating plates 57, and the counterweight roller 510 can exactly offset the weight of the tension execution roller 52. The counterweight block 511 is installed at the end of the tension transmission plate 56, and the counterweight block 511 is used to offset the weight of the tension transmission rolling bearing 55. The tension execution roller 52 and the counterweight roller 510 are respectively arranged on both sides of the rotating plate 57 to offset the weight of the tension execution roller 52. The setting of the counterweight block 511 further offsets the self-weight of the tension execution roller 52. Different counterweight rollers 510 can be replaced according to the requirements of the tension of different battery electrode sheet transmissions to eliminate the self-weight of the transmission roller 52, ensuring the accuracy of the tension value detected by the tension adjustment cylinder 53 and the electronic ruler 54.

[0045] Optionally, the tension detection and execution module 5 further includes a reinforcing plate 512. The reinforcing plate 512 is fixedly connected to the tension execution support plate 59 through a connecting column, and the other end of the self-rotating rod 58 is rotatably connected to the reinforcing plate 512. The setting of the reinforcing plate 512 improves the support strength of the tension detection and execution module and avoids deformation.

[0046] The frame 1, the total mounting plate 2, the unwinding module 3, the intermediate transmission roller module 4, the deviation rectification module 6, and the laser cutting module 8 are as described in the specific embodiment 1 or adopt known structures in the prior art.

[0047] Specific embodiment 3:

[0048] A laser flying cutting device for battery electrode sheets includes a frame 1, a total mounting plate 2, an unwinding module 3, an intermediate transmission roller module 4, a deviation rectification module 6, a reinforcing rib module 7, and a laser cutting module 8. The reinforcing rib module 7 is used for embossing treatment at the edge positions on both sides of the electrode sheet to improve the strength of the product and avoid the ear turning of the electrode sheet after cutting in the later stage.

[0049] As shown in Figure 5, the reinforcing rib module 7 includes a reinforcing rib module support frame 71, an embossing roller 72, a smooth roller 73, a limiting plate 74, an embossing cylinder 75, and an embossing width adjustment screw rod 76. The reinforcing rib module support frame 7 is fixedly connected to the plate surface of the total mounting plate 2. The embossing roller 72 is installed through an embossing roller mounting plate, and the embossing roller mounting plate is fixedly connected to the piston rod of the embossing cylinder 75. The embossing roller mounting plate is guidingly connected to an embossing width adjustment plate through a lifting guiding slide rail and slider structure. The embossing width adjustment plate is fixedly connected to the screw nut in the embossing width adjustment screw rod 76. The embossing width adjustment screw rod 76 is installed inside the reinforcing rib module support frame 71 through a mounting seat. The cylinder body of the embossing cylinder 75 is fixedly connected to the embossing width adjustment plate. The limiting plate 74 is fixedly connected to the piston rod of the embossing cylinder 75, and the distance between the two limiting plates 74 on both sides can be adjusted through the horizontal waist-shaped holes on the plate surface of the limiting plate 74 to adapt to the limiting passing of battery electrode sheets with different widths. Both ends of the smooth roller 73 are rotatably connected to the inner wall of the reinforcing rib module support frame 71.

[0050] The battery electrode sheet first passes through the limiting plates 74 on both sides, and then passes through the gap between the embossing roller 72 and the smooth roller 73. At the same time, the embossing roller 72 performs embossing treatment at the edge position to avoid the ear turning over after the later cutting of the electrode sheet. By adjusting the embossing width adjustment screw rod 76, the embossing operation for battery electrode sheets with different widths can be satisfied. By adjusting the height of the embossing roller 72 through the embossing cylinder 75, the need for reinforcing rib embossing of battery electrode sheets with different thicknesses can be satisfied. During the embossing process, the pressure of the embossing cylinder 75 is controlled by the precision pressure regulating valve to avoid damaging the surface of the battery electrode sheet due to excessive pressure.

[0051] Optionally, it includes two reinforcing rib modules 7, which respectively press reinforcing rib structures on the upper and lower surfaces of the battery electrode sheet during the transmission process, as Figure 5a , 5b shown.

[0052] The frame 1, the total mounting plate 2, the unwinding module 3, the intermediate driving roller module 4, the deviation rectifying module 6, and the laser cutting module 8 are as described in the specific embodiment 1 or adopt known structures in the prior art.

[0053] Specific embodiment 4:

[0054] A laser flying cutting device for battery electrode sheets, comprising a frame 1, a total mounting plate 2, a unwinding module 3, an intermediate driving roller module 4, a deviation rectifying module 6, and a laser cutting module 8. The total mounting plate 2 is fixed on the side panel of the frame 1. The unwinding module 3, the intermediate driving roller module 4, the deviation rectifying module 6, and the laser cutting module 8 are directly or indirectly installed on the frame 1 and the total mounting plate 2. The intermediate driving roller module 4 includes one or more intermediate driving rollers, which play a role in supporting, redirecting, and tensioning the battery electrode sheets during the conveying process between adjacent workstations.

[0055] As Figure 2 shown, the laser cutting module 8 includes a laser assembly 81, an X-axis lead screw 82, a Z-axis lead screw 83, an X-axis slide rail and slider structure 84, a Z-axis slide rail and slider structure 85, a laser assembly translation plate 86, and a cutting traction assembly 87. It also includes a dust removal assembly 88 or / and an air knife 89. The laser module mounting plate is fixed on the plate surface of the total mounting plate 2. The X-axis lead screw 82 is installed and connected to the laser module mounting plate through a mounting seat. The X-axis slide rail and slider structure 84 is fixed on the plate surface of the laser module mounting plate. The laser assembly translation plate 86 is fixed to the lead screw nut of the X-axis lead screw 82 and the slider of the X-axis slide rail and slider structure 84. The laser assembly 81 is fixed on the plate surface of the laser assembly mounting plate. The Z-axis lead screw 83 is fixedly connected to the laser assembly translation plate 86 through a connecting plate. The Z-axis slide rail and slider structure 85 is fixed on the plate surface of the laser assembly translation plate 86. The laser assembly mounting plate is connected to the lead screw nut of the Z-axis lead screw 83 and fixed to the slider of the Z-axis slide rail and slider structure 85. The cutting traction assembly 87 includes a laser cutting support frame 871, a cutting traction motor 872, a traction roller 873, and a passive traction roller 874. The laser cutting support frame 871 is fixed on the plate surface of the total mounting plate 2. The passive traction roller 874 is rotatably connected to the laser cutting support frame 871 through a passive traction roller mounting plate. The cutting traction motor 872 is fixed on the plate surface of the laser cutting support frame 871 and its output end is connected to the traction roller 873. The passive traction roller 874 and the traction roller 873 are arranged vertically. The dust removal assembly 88 and the air knife 89 are arranged above and below the cutting height formed by the traction roller 873 and the passive traction roller 874.

[0056] Optionally, as Figure 7 shown, it further includes a cutting size adjustment slide rail and slider 811. The cutting size adjustment slide rail and slider 811 is fixed on the bottom plate surface of the laser cutting support frame 871. The cutting traction assembly 87, the dust removal assembly 88, and the air knife 89 are all directly or indirectly connected to the slider of the cutting size adjustment slide rail and slider 811. By moving the positions of the cutting traction assembly 87, the dust removal assembly 88, and the air knife 89, the requirements for different cutting lengths can be met.

[0057] Optionally, as Figure 7 shown, the laser cutting module 8 further includes a cutting support mesh 810. The surface of the cutting support mesh 810 is provided with a traction roller avoidance hole 8101. The middle large-diameter part of the traction roller 873 protrudes from the traction roller avoidance hole 8101, and the battery electrode sheet to be cut passes through the upper surface of the cutting support mesh 810.

[0058] Optionally, as Figure 8 shown, the dust removal assembly 88 includes an upper dust removal air hood 881 and a lower dust removal air hood 882. The upper dust removal air hood 881 is arranged on the upper surface of the cutting support mesh 810, and the lower dust removal air hood 882 is arranged on the lower surface of the cutting support mesh 810. The two upper dust removal air hoods 881 are respectively arranged on both sides of the laser cutting gap; air knives 89 are arranged above and below the cutting support mesh 810.

[0059] During the laser cutting process of the battery electrode sheet, a large amount of cutting debris and fumes will be generated. The cutting debris and fumes will block the laser propagation and affect the cutting effect. The cutting debris will melt under the action of high laser energy and solidify on the battery electrode sheet, affecting the surface quality of the product; the air knives 89 are connected to a blowing device, and the dust removal assembly 88 is connected to a pumping device; by setting the air knives 89, the cutting debris above and below the cutting support mesh 810 is blown outside the laser energy range to avoid solidifying on the surface of the electrode sheet; by arranging the upper dust removal air hoods 881 on both sides of the laser cutting gap, the dust suction area is increased as much as possible without affecting the laser cutting position to improve the dust suction effect, and the lower dust removal air hood 882 sucks the debris and fumes falling below the cutting support mesh 810. On the other hand, the cut product is temporarily adsorbed on the surface of the cutting support mesh 810 to avoid warping at the end of the cut product.

[0060] Optionally, when there are multiple laser assemblies 81, each laser assembly 81 corresponds to one X-axis lead screw 82, Z-axis lead screw 83, and Z-axis slide rail slider structure 85, and shares one X-axis slide rail slider structure 84.

[0061] Preferably, for the laser flying cutting equipment for battery electrode sheets, the cutting and traction assembly 87 further includes a second cylinder 875. The second cylinder 875 is fixedly connected to the laser cutting support frame 871 through a connecting plate, and the piston rod is fixedly connected to the passive traction roller mounting plate.

[0062] Optionally, the passive traction roller mounting plate is connected to the laser cutting support frame 871 in a lifting and guiding manner through a Z-axis slide rail slider. The gap between the traction roller 873 and the passive traction roller 874 is adjusted by the second cylinder 875 to meet the passing of battery electrode sheets with different thicknesses and the initial threading operation.

[0063] Optionally, asFigure 7 As shown, the cutting and traction assembly 87 further includes a limit rod 876. The limit rod 876 is fixed to the mounting plate of the second cylinder 875. A limit plate made of rubber is mounted on the surface of the passive traction roller mounting plate. When the second cylinder 875 drives the passive traction roller mounting plate to rise during the material threading process, upper limit is carried out to avoid collision noise.

[0064] Optionally, as Figure 6 , 7 shown, the cutting and traction assemblies 87 are arranged on both sides of the laser cutting gap. The cutting and traction assembly 87 in front of the conveyor is used to traction the pole piece to be cut to the laser cutting position, and the cutting and traction assembly 87 behind the conveyor is used to send the cut pole piece into the blanking guide plate for blanking.

[0065] Optionally, as Figure 1 , Figure 9 shown, it further includes a tape connecting module 9. The tape connecting module 9 includes a tape connecting support frame 91, a tape connecting cylinder 92, a tape connecting lifting shaft 93, and a tape connecting pressure plate 94. The tape connecting support frame 91 is fixed to the surface of the total mounting plate 2. The tape connecting lifting shaft 93 is connected to the upper surface of the tape connecting support frame 91 through a linear bearing. The upper end surface of the tape connecting lifting shaft 93 is fixedly connected to the tape connecting pressure plate 94. The lower end surface of the tape connecting lifting shaft 93 located inside the tape connecting support frame 91 is fixedly connected through a tape connecting connecting plate. The cylinder body of the tape connecting cylinder 92 is fixed to the upper surface of the tape connecting support frame 91, and the piston shaft is fixedly connected to the tape connecting connecting plate.

[0066] The battery pole piece passes through below the tape connecting pressure plate 94. The lifting of the tape connecting pressure plate 94 is controlled by the tape connecting cylinder 92, so as to realize the replacement of the battery pole piece tape between the pressing and releasing states when adjusting the coil position during the initial material threading or when it is necessary to pause the conveyor due to an emergency.

[0067] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A laser flying cutting device for battery electrode sheets, characterized in that: The machine frame, the total mounting plate, the unwinding module, and the intermediate driving roller module are characterized in that: one or more of a tape connecting module, a tension detection and execution module, a deviation rectification module, a reinforcing rib module, and a laser cutting module are further included. The total mounting plate is fixed on the side panel of the machine frame. The unwinding module, the intermediate driving roller module, the tape connecting module / tension detection and execution module / deviation rectification module / reinforcing rib module / laser cutting module are directly or indirectly installed on the machine frame and the total mounting plate. The intermediate driving roller module includes one or more intermediate driving rollers, which play a role of supporting or / and redirecting or / and tensioning the battery electrode sheet during the conveying process between adjacent workstations. The tape connecting module selectively presses down on the passing electrode sheet to prevent its continuous conveyance or releases it for continuous conveyance. The tension detection and execution module is used to monitor the tension in real time during the unwinding and conveying process of the electrode sheet coil or / and adjust the tension in real time. The reinforcing rib module is used to perform embossing treatment on both side edges of the electrode sheet.

2. The laser flying cutting device for battery electrode sheets according to claim 1, wherein: The unwinding module includes an unwinding roller, an unwinding reduction motor, a first cylinder, and a first translation slide rail slider. The output end of the unwinding reduction motor is connected to the unwinding roller. The unwinding reduction motor is fixedly connected to the slider in the first translation slide rail slider through an unwinding reduction motor mounting plate. The first translation slide rail slider is fixed in the machine frame. The output end of the first cylinder is rotatably connected to the inner wall surface of the machine frame through a connecting block. The cylinder body of the first cylinder is directly or indirectly rotatably connected to the unwinding reduction motor mounting plate through a connecting block. The unwinding roller passes through the plate surfaces of the machine frame and the total mounting plate; The tension detection and execution module includes a tension sensor and a tension execution roller. The tension sensor is fixedly connected to the total mounting plate through a connecting plate. One intermediate conveying roller in the intermediate driving roller module is installed on the sensing end of the tension sensor through a mounting seat; The tension execution roller is rotatably installed on the plate surface of the total mounting plate.

3. The laser flying cutting device for battery electrode sheets according to claim 2, wherein: The unwinding module further includes an intermediate driving roller mounting plate and a transmission guide plate. An avoidance hole is machined on the plate surface of the machine frame. The intermediate driving roller mounting plate is fixedly connected to the unwinding reduction motor mounting plate and extends to the other side through the avoidance hole on the plate surface of the machine frame. The intermediate driving roller closest to the unwinding roller is rotatably installed on the intermediate driving roller mounting plate. The transmission guide plate is fixedly connected to the total mounting plate. The intermediate driving roller mounting plate and the transmission guide plate are guided and connected through a slide rail slider.

4. The laser flying cutting device for battery electrode sheets according to any one of claims 2 or 3, characterized in that: A spare unwinding module is further included. In addition to the structure of the unwinding module, the spare unwinding module further includes a spare unwinding module translation slide rail slider structure and an unwinding roller support frame. The translation slide rail slider structure is fixed on the bottom plate surface of the machine frame. The unwinding roller support frame is fixed on the upper plate surface of the slider of the spare unwinding module translation slide rail slider structure. The other end of the unwinding roller in the spare unwinding module is rotatably connected to the unwinding roller support frame.

5. The laser flying cutting device for battery electrode sheets according to claim 2, wherein: The tension detection and execution module further includes a tension adjustment cylinder, an electronic ruler, a tension transmission rolling bearing, a tension transmission plate, a rotating plate, a self-rotating rod, and a tension execution support plate. The tension adjustment cylinder is fixed to the inner wall surface of the frame through a tension adjustment cylinder mounting plate, and a push plate is installed at the end of the piston rod. The end of the electronic ruler is fixedly connected to the push plate, and the outer shell of the electronic ruler is in sliding contact with a translation support plate that is in imitation matching. The translation support plate is fixed to the tension adjustment cylinder mounting plate. The tension execution support plate is fixedly connected to the surface of the total mounting plate. The self-rotating rod is rotatably installed on the tension execution support plate through a rolling bearing and a bearing seat. The self-rotating rod passes through the total mounting plate and one end of the frame and is fixedly connected to the tension transmission plate. The tension transmission rolling bearing is installed on the surface of the tension transmission plate. The self-rotating rod is fixedly connected perpendicular to the surfaces of the two rotating plates. The two ends of the tension execution roller are respectively rotatably connected to the same side of the two rotating plates.

6. The laser flying cutting device for battery pole pieces according to claim 5, wherein: The tension detection and execution module further includes a counterweight roller and a counterweight block. The counterweight roller is installed on the other side of the two rotating plates, and the counterweight block is installed at the end of the tension transmission plate.

7. The laser flying cutting device for battery electrode sheets according to claim 1, wherein: The reinforcing rib module includes a reinforcing rib module support frame, an embossing roller, a smooth roller, a limiting plate, an embossing cylinder, and an embossing width adjustment lead screw. The reinforcing rib module support frame is fixedly connected to the surface of the total mounting plate. The embossing roller is installed through an embossing roller mounting plate. The embossing roller mounting plate is fixedly connected to the piston rod of the embossing cylinder. The embossing roller mounting plate is guidingly connected to an embossing width adjustment plate through a lifting guiding slide rail and slider structure. The embossing width adjustment plate is fixedly connected to the lead screw nut in the embossing width adjustment lead screw. The embossing width adjustment lead screw is installed inside the reinforcing rib module support frame through a mounting seat. The cylinder body of the embossing cylinder is fixedly connected to the embossing width adjustment plate. The limiting plate is fixedly connected to the piston rod of the embossing cylinder. The two ends of the smooth roller are rotatably connected to the inner wall of the reinforcing rib module support frame. The tape connecting module includes a tape connecting support frame, a tape connecting cylinder, a tape connecting lifting shaft, and a tape connecting pressure plate. The tape connecting support frame is fixedly connected to the surface of the total mounting plate. The tape connecting lifting shaft is connected to the upper surface of the tape connecting support frame through a linear bearing. The upper end surface of the tape connecting lifting shaft is fixedly connected to the tape connecting pressure plate. The lower end surface of the tape connecting lifting shaft located inside the tape connecting support frame is fixedly connected through a tape connecting connecting plate. The cylinder body of the tape connecting cylinder is fixedly connected to the upper surface of the tape connecting support frame, and the piston rod is fixedly connected to the tape connecting connecting plate.

8. The laser flying cutting device for battery electrodes according to claim 1, characterized in that: The laser cutting module includes a laser component, an X-axis lead screw, a Z-axis lead screw, an X-axis slide rail and slider structure, a Z-axis slide rail and slider structure, a laser component translation plate, a cutting traction component, and further includes a dust removal component or / and an air knife. The laser module mounting plate is fixed on the board surface of the total mounting plate. The X-axis lead screw is installed and connected to the laser module mounting plate through a mounting seat. The X-axis slide rail and slider structure is fixed on the board surface of the laser module mounting plate. The laser component translation plate is fixed to the lead screw nut of the X-axis lead screw and the slider of the X-axis slide rail and slider structure. The laser component is fixed on the board surface of the laser component mounting plate. The Z-axis lead screw is fixedly connected to the laser component translation plate through a connecting plate. The Z-axis slide rail and slider structure is fixed on the board surface of the laser component translation plate. The laser component mounting plate is connected to the lead screw nut of the Z-axis lead screw and fixed to the slider of the Z-axis slide rail and slider structure. The cutting traction component includes a laser cutting support frame, a cutting traction motor, a traction roller, and a passive traction roller. The laser cutting support frame is fixed to the board surface of the total mounting plate. The passive traction roller is rotatably connected to the laser cutting support frame through a passive traction roller mounting plate. The cutting traction motor is fixed on the board surface of the laser cutting support frame and its output end is connected to the traction roller. The passive traction roller and the traction roller are arranged vertically. Above and / or below the cutting height formed by the traction roller and the passive traction roller, there is a dust removal component or / and an air knife.

9. The laser flying cutting device for battery electrode sheet according to claim 8, wherein: It further includes a cutting size adjustment slide rail and slider and a cutting support net. The cutting size adjustment slide rail and slider is fixed on the bottom board surface of the laser cutting support frame. The cutting traction component, the dust removal component or / and the air knife are all directly or indirectly connected to the slider of the cutting size adjustment slide rail and slider. The board surface of the cutting support net is provided with a traction roller avoidance hole. The middle large-diameter part of the traction roller protrudes from the traction roller avoidance hole. The battery electrode sheet to be cut passes through the upper board surface of the cutting support net. The dust removal component includes an upper dust removal air hood and a lower dust removal air hood. The upper dust removal air hood is arranged on the upper board surface of the cutting support net, and the lower dust removal air hood is arranged on the lower board surface of the cutting support net. The two upper dust removal air hoods are respectively arranged on both sides of the laser cutting gap. Air knives are arranged above and below the cutting support net.

10. The laser flying cutting device for battery electrode sheets according to claim 8, wherein: The cutting traction component further includes a second air cylinder or / and a limiting rod. The second air cylinder is fixedly connected to the laser cutting support frame through a connecting plate and its piston rod is fixedly connected to the passive traction roller mounting plate. The passive traction roller mounting plate is connected to the laser cutting support frame in a lifting and guiding manner through a Z-axis slide rail and slider. The limiting rod is fixed to the mounting plate of the second air cylinder, and a limiting plate made of rubber is mounted on the board surface of the passive traction roller mounting plate.

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