Laser cutting device for flat-pressed pole piece

Abstract

The utility model discloses a kind of flat pressure type pole piece laser cutting devices, including flat pressure type pole piece driving device and laser cutting device;Flat pressure type pole piece driving device includes two flat pressure type pole piece driving units oppositely arranged;Flat pressure type pole piece driving unit includes mounting bracket, the two sides side surface of mounting bracket is respectively correspondingly provided with the guide rail that surrounds a week, the guide rail is equipped with the pressing plate unit that is slidably matched with it and uses the way of flat pressure to press pole piece or pole piece strip;Pressing plate unit is equipped with at least two groups, and the pressing plate driving unit that is one to one with each group of pressing plate unit is correspondingly provided on mounting bracket, and the pressing plate driving unit is used to drive corresponding one group of pressing plate unit to move along guide rail;Laser cutting device includes laser cutting unit respectively arranged at two sides, and laser cutting unit includes laser light path assembly for performing laser cutting to pole piece and light path adjusting assembly for adjusting the position of laser light path assembly in the horizontal direction and vertical direction perpendicular to flat pressure type pole piece driving channel.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery production equipment, specifically a flat-pressure electrode laser cutting device. Background Technology

[0002] There are two main production processes for battery cells: winding and stacking. In the winding process, electrode strips and separator strips are combined and then wound to form the cell. In the stacking process, the electrode strips are first cut into sheet materials of a set size, and then stacked using a Z-shaped or folded method to produce the cell. Currently, stamping and shearing are commonly used to cut the electrode strips into sheet materials. While this meets some requirements, the stamping and shearing tools are prone to wear. When these tools wear out, metal burrs easily form at the cut ends of the sheet materials, requiring frequent maintenance and replacement of the shearing tools, which significantly disrupts production. These metal burrs are difficult to remove, and after stacking to form the cell, they can easily cause internal short circuits, resulting in low product yield and safety risks during charging and discharging.

[0003] The applicant's earlier Chinese patent application, CN 2023105141170, disclosed an electrode rolling cutting device. This device proposed a method of driving the electrode strip to move using flat pressure to facilitate the rolling cutting of the electrode. The applicant's experiments revealed that although the rolling cutting method can effectively prevent burrs from forming at the cut surfaces at both ends of the electrode, it has the following shortcomings: (1) The entire guide rail is covered with pressure plate units, resulting in an excessive number of pressure plate units and a large resistance to the sliding of the pressure plate units along the guide rail; (2) Since the pressure plate unit covers the entire guide rail, the spacing between the pressure plates is very small. However, when laser cutting the electrode sheet, a certain spacing between the electrode sheets is required. This electrode sheet rolling cutting device cannot adjust the electrode sheet spacing. (3) The electrode rolling cutting device integrates the rolling cutting component and the laser cutting component on a flat pressure rolling cutting drive component. The rolling cutting component needs to move with the electrode, which causes a certain interference between the spatial positions of the rolling cutting component and the laser cutting component. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a flat-press type electrode laser cutting device, which can effectively improve the flexibility of the pressure plate unit and facilitate the adjustment of the distance between two adjacent pressure plate units, so as to adjust the distance between the electrodes and perform laser cutting operations on the electrodes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A flat-pressure electrode laser cutting device includes a flat-pressure electrode driving device and a laser cutting device; the flat-pressure electrode driving device is used to drive the electrode to move along a set direction; the laser cutting device is used to cut the electrode. The flat-pressure electrode driving device includes two flat-pressure electrode driving units arranged opposite to each other. Of the two flat-pressure electrode driving units, the one located above is the upper flat-pressure electrode driving unit, and the one located below is the lower flat-pressure electrode driving unit. A flat-pressure electrode driving channel for driving the electrode to move is formed between the upper flat-pressure electrode driving unit and the lower flat-pressure electrode driving unit. The flat-press electrode driving unit includes a mounting frame, and guide rails are respectively provided on both sides of the mounting frame. The guide rails are provided with pressure plate units that slide with the guide rails and press the electrode in a flat-press manner. There are at least two sets of pressure plate units. The mounting frame is provided with a pressure plate driving unit corresponding to each set of pressure plate units. The pressure plate driving unit is used to drive the corresponding set of pressure plate units to move along the guide rails. The laser cutting device includes laser cutting units respectively disposed on both sides of the flat-pressure electrode driving channel. The laser cutting unit includes a laser optical path assembly for performing laser cutting on the electrode and an optical path adjustment assembly for adjusting the position of the laser optical path assembly in the horizontal and vertical directions perpendicular to the flat-pressure electrode driving channel.

[0006] Furthermore, the guide rail includes arc track segments located at the front and rear ends of the mounting frame, and the two ends of the two arc track segments are connected by two non-intersecting straight track segments; the flat-pressure electrode driving channel is located between two adjacent straight tracks belonging to the two flat-pressure electrode driving units.

[0007] Furthermore, the pressure plate drive unit includes a servo motor and two synchronous pulleys coaxially arranged with the two arc track segments respectively. A synchronous belt is sleeved between the two synchronous pulleys, and the synchronous belt is connected to a corresponding set of pressure plate units. The servo motor is mounted on the mounting frame, and the servo motor is drivenly connected to one of the synchronous pulleys.

[0008] Furthermore, the pressure plate unit includes a base assembly and a pressure plate assembly; the base assembly includes base side plates located on both sides of the mounting frame and slidably engaged with corresponding guide rails, and a base bottom plate connected to the two base side plates; the pressure plate assembly includes a mounting plate and a pressure plate parallel to the base bottom plate, and the pressure plate is fixedly mounted on the mounting plate; the base bottom plate is provided with a linear guide rod perpendicular to it, the mounting plate slidably engages with the linear guide rod, and a compression spring is installed between the mounting plate and the base bottom plate.

[0009] Furthermore, the base side plate is equipped with rollers located above and below the corresponding guide rails, and the rollers are in rolling engagement with the corresponding guide rails.

[0010] Furthermore, the flat-pressure electrode driving unit also includes a constraint track for adjusting the distance between the pressure plate and the base plate. The constraint track includes an arc-shaped constraint track corresponding to the arc track segment. The arc-shaped constraint track has guide sections at both ends. The guide section located on the entrance side of the arc-shaped constraint track is used to guide the pressure plate unit to enter and gradually reduce the distance between the pressure plate and the base plate. The guide section located on the exit side of the arc-shaped constraint track is used to guide the pressure plate unit to move out and gradually increase the distance between the pressure plate and the base plate. In the lower flat pressure electrode driving unit, a straight constraint track is provided between the guide sections of the two arc-shaped constraint tracks, located on the lower side of the flat pressure electrode driving channel. The straight constraint track is used to fix the distance between the pressure plate and the base plate to withstand the pressure. A constraint wheel seat is installed on the base plate, and a constraint wheel that cooperates with the constraint track is installed on the constraint wheel seat.

[0011] Furthermore, it also includes a flat pressure adjustment component for adjusting the spacing between the two flat pressure electrode driving units to adjust the flat pressure of the pressure plate unit on the electrode.

[0012] Furthermore, the laser cutting unit also includes a dust collection component, which includes a dust collection hood that corresponds one-to-one with the laser optical path component and a dust collection pipe connected to the dust collection hood.

[0013] Furthermore, the dust collection hood includes a hood body with an opening facing the front side of the flat-pressure electrode driving channel. The front side of the hood body is provided with a clearance notch to allow the edge of the electrode to be located inside the hood body. The top surface of the hood body is provided with a through hole for the laser excited by the laser optical path assembly to irradiate the edge of the electrode to perform laser cutting on the electrode.

[0014] Furthermore, the laser cutting device also includes a smoothing component, which includes a smoothing mounting plate. The smoothing mounting plate is provided with a smoothing support plate and a smoothing pressure plate that are parallel to each other. A smoothing channel is formed between the smoothing support plate and the smoothing pressure plate for smoothing the tabs on the side of the electrode sheet cut by the laser cutting device.

[0015] Furthermore, the smoothing assembly also includes a waste receiving assembly; the waste receiving assembly includes a waste receiving hopper disposed below the material receiving side of the smoothing channel; the smoothing pressure plate is provided with a first air inlet located directly above the waste receiving hopper, and the smoothing mounting plate is equipped with an air blowing pipe for blowing the cut waste material into the waste receiving hopper through the first air inlet.

[0016] Furthermore, a smoothing drive belt assembly is installed on the smoothing mounting plate. The smoothing drive belt assembly includes pulleys located at both ends of the smoothing mounting plate and a drive belt sleeved on the pulleys. The drive belt passes through the smoothing channel and is located on the upper side of the electrode plate. A tensioning component is provided on the smoothing drive belt assembly.

[0017] Furthermore, the transmission belt is provided with perforated holes corresponding to the first air blowing port.

[0018] Furthermore, the smoothing tray has a guide slope at one end on the material receiving side of the smoothing channel to guide the electrode sheet into the smoothing channel.

[0019] Furthermore, the smoothing assembly also includes a guide control assembly for controlling the tip of the electrode to enter the smoothing channel through the guide ramp.

[0020] Furthermore, the guiding control component includes a second air inlet disposed on the waste receiving hopper and an air blowing pipe disposed corresponding to the second air inlet, wherein the second air inlet is disposed on the side of the waste receiving hopper facing the material receiving side of the smoothing channel.

[0021] Furthermore, the air blowing tube is connected to an air blowing shaft, and the guiding control component also includes a control mechanism for driving the air blowing shaft to rotate in order to adjust the air blowing direction of the air blowing tube.

[0022] Furthermore, the laser cutting device also includes a backplate assembly, which includes a fixedly mounted backplate seat. The backplate seat is provided with a backplate slide rail perpendicular to the flat-pressure electrode driving channel and a backplate slider that slides with the backplate slide rail. A backplate box is mounted on the backplate slider. The top surface of the backplate box is arrayed with negative pressure holes, and the backplate box is connected to a negative pressure pipe.

[0023] The beneficial effects of this utility model are as follows: The present invention relates to a flat-pressure electrode laser cutting device, which uses a flat-pressure electrode driving device to form a flat-pressure electrode driving channel by two oppositely arranged flat-pressure electrode driving units. After the electrode enters the flat-pressure electrode driving channel, each set of pressure plate units in the two flat-pressure electrode driving units is driven to move along the guide rail. When the pressure plate units move to the straight track sections located on both sides of the flat-pressure electrode driving channel, the pressure plate units respectively set on the upper flat-pressure electrode driving unit and the lower flat-pressure electrode driving unit press the electrode strip from the upper and lower sides and drive the electrode strip to move towards the exit side. By setting at least two sets of pressure plate units on each flat-press electrode driving unit, and each set of pressure plate units is driven by an independent pressure plate driving unit, the number of pressure plate units driven by each pressure plate driving unit can be effectively reduced. On the other hand, the speed of each set of pressure plate units moving along the guide rail can be controlled independently, that is, the pressure plate units do not need to fill the guide rail. By controlling the speed of each set of pressure plate units separately, the technical purpose of driving the electrode and electrode strip to feed and move continuously can be achieved. Furthermore, the width of the rolling channel and the spacing between electrodes and between electrodes and electrode strips can be adjusted.

[0024] By setting up a laser cutting device and setting laser cutting units on both sides of the flat-pressure electrode driving channel, at the laser cutting point, the position of the laser optical path component is adjusted by the optical path adjustment component according to the electrode specifications and size. Then, the laser optical path components of the two laser cutting units are used to perform laser cutting on both sides of the electrode, cutting the electrode into a set size and shape and obtaining structures such as electrode tabs.

[0025] In summary, the flat-press type electrode laser cutting device of this utility model can effectively improve the flexibility of the pressure plate unit and facilitate the adjustment of the distance between two adjacent pressure plate units, so as to adjust the distance between the electrodes and perform laser cutting operations on the electrodes. Attached Figure Description

[0026] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration: Figure 1 This is a first-direction isometric view of an embodiment of the flat-press type electrode laser cutting device of this utility model; Figure 2 This is a second-direction isometric view of the flat-press type electrode laser cutting device in this embodiment; Figure 3 This is an isometric view of the upper flat-pressure electrode drive unit; Figure 4 This is an isometric view of the lower flat-pressure electrode drive unit; Figure 5 This is a schematic diagram of the pressure plate drive unit; Figure 6 This is a structural schematic diagram of the pressure plate unit; Figure 7 This is a schematic diagram of the laser cutting unit. Figure 8 This is a schematic diagram of the dust hood structure; Figure 9 A first-direction isometric view of the smoothing component; Figure 10 A second-direction isometric view of the smoothing component; Figure 11 To smooth out the third-party isometric view of the component.

[0027] Explanation of reference numerals in the attached figures: 10-Flat-pressure electrode drive unit; 11-Upper flat-pressure electrode drive unit; 12-Lower flat-pressure electrode drive unit; 13-Mounting bracket; 14-Guide rail; 141-Circular arc rail section; 142-Straight rail section; 15-Pressure plate unit; 151-Base side plate; 152-Base bottom plate; 153-Mounting plate; 154-Pressure plate; 155-Straight guide rod; 156-Spring; 157-Roller; 158-Constraint wheel seat; 159-Constraint wheel; 16-Pressure plate drive unit; 161-Servo motor; 162-Synchronous belt pulley; 163-Synchronous belt; 17-Constraint rail; 171-Arc-shaped constraint rail; 172-Guide section; 173-Flat constraint rail; 181-Servo motor; 182-Vertical adjustment rail; 183-Vertical adjustment slider; 184-Vertical adjustment screw; 185-Synchronous belt mechanism; 20-Laser cutting unit; 21-Laser optical path assembly; 22-Optical path adjustment assembly; 23-Dust suction hood; 231-Hood body; 232-Leaving notch; 233-Through hole; 24-Dust suction pipe; 25-Smoothing assembly; 251-Smoothing mounting plate; 252-Smoothing support plate; 253-Smoothing pressure plate; 254-Smoothing channel; 255-Waste material receiving hopper; 256-First air blowing port; 257-Air blowing pipe; 258-Negative pressure pipe; 259-Pulley; 2 60-Transmission belt; 261-Tensioning assembly; 262-Hollow hole; 263-Guide slope; 264-Second air inlet; 265-Air inlet pipe; 2651-Air outlet; 266-Air inlet shaft; 267-High-pressure air pipe; 268-Direction control motor; 269-Synchronous belt mechanism; 270-Sensor; 271-Backplate seat; 272-Backplate slide rail; 273-Backplate box; 274-Negative pressure hole; 275-Negative pressure pipe; 276-Smoothing motor. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] like Figure 1-2 As shown, the flat-pressure electrode laser cutting device of this embodiment includes a flat-pressure electrode driving device 10 and a laser cutting device. The flat-pressure electrode driving device 10 is used to drive the electrode to move along a set direction; the laser cutting device is used to cut the electrode.

[0030] Specifically, the flat-pressure electrode driving device 10 of this embodiment includes two flat-pressure electrode driving units arranged opposite to each other; of the two flat-pressure electrode driving units, the one located above is the upper flat-pressure electrode driving unit 11, and the one located below is the lower flat-pressure electrode driving unit 12. A flat-pressure electrode driving channel for driving electrode movement is formed between the upper flat-pressure electrode driving unit 11 and the lower flat-pressure electrode driving unit 12.

[0031] like Figure 3-5 As shown, the flat-pressure electrode driving unit of this embodiment includes a mounting frame 13. Guide rails 14 are respectively provided on both sides of the mounting frame 13, forming a continuous loop. Specifically, the guide rails 14 include arc-shaped track segments 141 located at the front and rear ends of the mounting frame 13, respectively. The ends of the two arc-shaped track segments 141 are connected by two non-intersecting straight track segments 142. Specifically, the flat-pressure electrode driving channel is located between two adjacent straight tracks 142 belonging to the upper flat-pressure electrode driving unit 11 and the lower flat-pressure electrode driving unit 12, respectively.

[0032] In this embodiment, the guide rail is provided with a pressure plate unit 15 that slides with it and presses the electrode sheet or electrode strip in a flat pressing manner. In this embodiment, there are at least two sets of pressure plate units 15. The mounting frame 13 is provided with a pressure plate driving unit 16 corresponding to each set of pressure plate units 15. The pressure plate driving unit 16 is used to drive the corresponding set of pressure plate units to move along the guide rail.

[0033] like Figure 6 As shown, in this embodiment, the pressure plate unit 15 includes a base assembly and a pressure plate assembly. The base assembly includes base side plates 151 located on both sides of the mounting frame 13 and slidably engaged with the corresponding guide rails 14, and a base bottom plate 152 connected to the two base side plates 151. The pressure plate assembly includes a mounting plate 153 and a pressure plate 154. Both the mounting plate 153 and the pressure plate 154 are parallel to the axis of the arc track segment 141, and the pressure plate 153 is fixedly mounted on the mounting plate 153. A linear guide rod 155 perpendicular to the base bottom plate 152 is provided on the base bottom plate 152. The mounting plate 153 is slidably engaged with the linear guide rod 155, and a compression spring 156 is installed between the mounting plate 153 and the base bottom plate 152.

[0034] In a preferred embodiment of this example, rollers 157 are mounted on the base side plate 151, located above and below the corresponding guide rails. The rollers 157 roll in contact with the corresponding guide rails 14, reducing the resistance to the movement of the pressure plate unit 15 along the guide rails 14. In this embodiment, four rollers 157 are mounted on the base side plate 151, with two rollers 157 located above the guide rails 14 and the other two rollers 157 located below the guide rails 14, which helps to maintain the stability of the pressure plate unit 15 during its movement along the guide rails 14.

[0035] like Figure 5 As shown, in this embodiment, the pressure plate drive unit 16 includes a servo motor 161 and two synchronous pulleys 162 coaxially arranged with the two arc track segments 141 respectively. A synchronous belt 163 is sleeved between the two synchronous pulleys 162, and the synchronous belt 163 is connected to a corresponding set of pressure plate units 15. The servo motor 161 is mounted on the mounting bracket 13, and the servo motor 161 is drivenly connected to one of the synchronous pulleys 162. The corresponding set of pressure plate units 15 is fixedly connected to the corresponding synchronous belt 163.

[0036] Specifically, in this embodiment, the pressure plate unit 15 is configured as two sets, and the pressure plate drive unit 16 is configured as two, that is, there are two servo motors 161. The two servo motors 161 are coaxially arranged with one of the arc track segments 141 and are respectively located on both sides of the mounting bracket 13. Of course, in some other embodiments, the two servo motors 161 can also be coaxially arranged with the two arc track segments 141 respectively, which will not be described in detail here.

[0037] The flat-pressure electrode driving unit of this embodiment also includes a constraint track 17 for adjusting the distance between the pressure plate 154 and the base plate 152. The constraint track 17 includes an arc-shaped constraint track 171 corresponding to the arc track segment 141. The two ends of the arc-shaped constraint track 171 are provided with guide segments 172. The guide segment located on the entrance side of the arc-shaped constraint track 171 is used to guide the pressure plate unit 15 into the track and gradually reduce the distance between the pressure plate 154 and the base plate 152. The guide segment located on the exit side of the arc-shaped constraint track 171 is used to guide the pressure plate unit 15 out of the track and gradually increase the distance between the pressure plate 154 and the base plate 152. A constraint wheel seat 158 ​​is installed on the base plate 152, and a constraint wheel 159 that cooperates with the constraint track 17 is installed on the constraint wheel seat 158. Specifically, on the inlet side of the flat-pressure electrode driving channel, corresponding to the outlet sides of the two constraint tracks 17 respectively set in the upper flat-pressure electrode driving unit 11 and the lower flat-pressure electrode driving unit 12, under the guidance of the corresponding guide section 172, the distance between the pressure plate 154 and the base plate 152 gradually increases, so that the pressure plate 154 can extend in a direction perpendicular or approximately perpendicular to it, so that the pressure plate 154 gradually fits with the electrode or electrode strip, and finally presses the electrode or electrode strip tightly. Correspondingly, on the outlet side of the flat-pressure electrode driving channel, corresponding to the inlet side of the two constraint tracks 17 respectively set in the upper flat-pressure electrode driving unit 11 and the lower flat-pressure electrode driving unit 12, under the guidance of the corresponding guide section 172, the distance between the pressure plate 154 and the base plate 152 gradually decreases, so that the pressure plate 154 can retract in a direction perpendicular or approximately perpendicular to it, so that the pressure plate 154 gradually separates from the electrode or electrode strip, and finally achieves the technical purpose of releasing the electrode or electrode strip.

[0038] Furthermore, in the lower flat-pressure electrode drive unit 12, a straight constraint track 173 is provided between the guide sections 172 of the two arc-shaped constraint tracks 171, located on the lower side of the flat-pressure electrode drive channel. The straight constraint track 173 is used to fix the relative arrangement between the pressure plate 154 and the base plate 152. Specifically, the pressure plate units 15 located on the upper and lower sides of the flat-pressure electrode drive channel are both subjected to pressure, and the compression spring 156 shortens under pressure. However, due to factors such as vibration during the conveying process of the electrode or electrode strip, the pressure is not stable enough, causing the compression spring 156 to vibrate, which in turn leads to instability of the electrode or electrode strip during the conveying process. By setting a straight constraint track 173 on the lower side of the flat-pressure electrode drive channel to fix the relative arrangement between the pressure plate 154 and the base plate 152, the vibration of the electrode or electrode strip during the conveying process can be effectively reduced or even eliminated, improving the conveying stability.

[0039] The flat-pressure electrode laser cutting device of this embodiment also includes a spacing adjustment component for adjusting the spacing between the upper flat-pressure electrode driving unit 11 and the lower flat-pressure electrode driving unit 12 to adjust the flat pressure on the electrode or electrode strip. Figure 2 As shown, the spacing adjustment component in this embodiment is only used to adjust the position of the upper flat-pressure electrode driving unit 11. Of course, in some other embodiments, the spacing adjustment component may also be used only to adjust the position of the lower flat-pressure electrode driving unit 12; in other embodiments, the spacing adjustment component may also adjust the positions of the upper flat-pressure electrode driving unit 11 and the lower flat-pressure electrode driving unit 12 at the same time.

[0040] Specifically, such as Figure 2 As shown, the spacing adjustment assembly in this embodiment includes a servo motor 181 and a vertical track assembly and a vertical drive assembly arranged at intervals. Specifically, the vertical track assembly includes a fixed vertical adjustment track 182 and a vertical adjustment slider 183 that slides with the vertical adjustment track. The mounting bracket 13 is fixedly connected to the vertical adjustment slider 183. The vertical drive assembly includes a vertical adjustment screw 184. The servo motor 181 is drivenly connected to one of the vertical adjustment screws 184, and the vertical adjustment screws 184 are drivenly connected to each other through a synchronous belt mechanism 185.

[0041] In this embodiment, the laser cutting device includes laser cutting units 20 respectively disposed on both sides of the flat-pressure electrode driving channel. The laser cutting unit 20 includes a laser optical path assembly 21 for performing laser cutting on the electrode and an optical path adjustment assembly 22 for adjusting the position of the laser optical path assembly 21 in the horizontal and vertical directions perpendicular to the flat-pressure electrode driving channel.

[0042] In a preferred embodiment of this example, the laser cutting unit further includes a dust extraction component, which is used to extract dust and other contaminants generated during laser cutting using negative pressure. Specifically, as shown... Figure 7 As shown, the vacuuming assembly includes a vacuum hood 23 corresponding to the laser optical path assembly and a vacuuming pipe 24 connected to the vacuum hood 23. Specifically, as... Figure 8 As shown, the dust collection hood 23 includes a hood 231 with an opening on the front side facing the flat-pressure electrode driving channel. The front side of the hood 231 is provided with a clearance notch 232 to allow the edge of the electrode to be located inside the hood. The top surface of the hood 231 is provided with a through hole 233 for the laser excited by the laser optical path assembly 21 to irradiate the edge of the electrode to perform laser cutting on the electrode.

[0043] The laser cutting apparatus in this embodiment also includes a smoothing component 25, which is used to smooth the tabs obtained by laser cutting. Specifically, as shown... Figure 9-11As shown, the smoothing assembly 25 includes a smoothing mounting plate 251, on which smoothing support plates 252 and smoothing pressure plates 253 are provided, which are parallel to each other. A smoothing channel 254 is formed between the smoothing support plates 252 and the smoothing pressure plates 253 for smoothing the tabs cut by the laser cutting device on the side of the electrode sheet.

[0044] Specifically, the smoothing assembly 25 also includes a waste receiving assembly for recycling waste generated from laser cutting of the electrode sheet. The waste receiving assembly includes a waste hopper 255 located below the incoming material side of the smoothing channel 254. A first air inlet 256 is provided on the smoothing pressure plate 253 directly above the waste hopper 255, and the portion of the smoothing support plate 252 on the waste hopper 255 is shortened to avoid obstructing the first air inlet 256. In this embodiment, an air blowing pipe 257 is installed on the smoothing mounting plate 251 to blow the cut waste into the waste hopper 255 through the first air inlet 256. Thus, when the electrode sheet reaches the smoothing channel 254, under the action of the high-pressure airflow blowing downwards from the first air inlet 256, the waste generated from laser cutting at the edge of the electrode sheet is blown down into the waste hopper 255, and the waste hopper 255 is connected to a negative pressure pipe 258 to suck away the waste.

[0045] In a preferred embodiment of this example, a smoothing drive belt assembly is mounted on the smoothing mounting plate 251 to improve the smoothing effect on the electrode tabs. Specifically, the smoothing drive belt assembly includes pulleys 259 located at both ends of the smoothing mounting plate 251 and a drive belt 260 sleeved on the pulleys 259. The drive belt 260 passes through the smoothing channel 254 and is located on the upper side of the electrode plate. A smoothing motor 276, which is pulsatorically connected to one of the pulleys 259, is mounted on the smoothing mounting plate 251. The smoothing drive belt assembly in this embodiment is provided with a tensioning component 261 to ensure that the drive belt 260 has sufficient tension to smooth the electrode tabs. In a preferred embodiment of this example, to prevent the drive belt 260 from obstructing the first air inlet 256, a perforation 262 is provided on the drive belt 260 corresponding to the first air inlet 256.

[0046] In this embodiment, the smoothing plate 252 has a guide slope 263 at one end on the material receiving side of the smoothing channel 254 to guide the electrode sheet into the smoothing channel 254. Further, the smoothing assembly also includes a guide control component for controlling the electrode tip to enter the smoothing channel 254 through the guide slope 263. In this embodiment, the guide control component includes a second air inlet 264 disposed on the waste receiving hopper 255 and an air pipe 265 corresponding to the second air inlet 264. The second air inlet 264 is disposed on the side of the waste receiving hopper 255 facing the material receiving side of the smoothing channel 254. In this embodiment, the air outlet 2651 of the air pipe 265 is disposed on its side wall. One end of the air pipe 265 is connected to an air blowing shaft 266, and the other end is connected to a high-pressure air pipe 267. The air pipe 265 has an air blowing chamber inside, and both the high-pressure air pipe 267 and the air outlet are connected to the air blowing chamber. The guidance control assembly also includes a blowing direction control mechanism for driving the blowing shaft 266 to rotate to adjust the blowing tube 265. Specifically, the blowing direction control mechanism includes a direction control motor 268, the output shaft of which is connected to the blowing shaft 266 via a synchronous belt mechanism 269. In this embodiment, the blowing direction control mechanism also includes a sensor 270 for detecting the rotation direction of the blowing shaft 266.

[0047] The laser cutting device in this embodiment also includes a backplate assembly, which is positioned directly below the laser optical path assembly 21, with the electrode located between the laser optical path assembly 21 and the backplate assembly. The backplate assembly includes a fixedly mounted backplate base 271. The backplate base 271 has a backplate slide rail 272 perpendicular to the flat-pressure electrode driving channel and a backplate slider that slides along the backplate slide rail. A backplate box 273 is mounted on the backplate slider. The top surface of the backplate box 273 is arrayed with negative pressure holes 274, and the backplate box 273 is connected to a negative pressure tube 275. Thus, the negative pressure holes 274 arrayed on the top surface of the backplate box 273 can generate a negative pressure adsorption effect on the edge of the electrode during laser cutting, thereby improving the positional stability of the electrode edge during laser cutting.

[0048] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A flat-pressure type electrode laser cutting device, characterized in that: It includes a flat-pressure electrode driving device and a laser cutting device; the flat-pressure electrode driving device is used to drive the electrode to move along a set direction; the laser cutting device is used to cut the electrode. The flat-pressure electrode driving device includes two flat-pressure electrode driving units arranged opposite to each other. Of the two flat-pressure electrode driving units, the one located above is the upper flat-pressure electrode driving unit, and the one located below is the lower flat-pressure electrode driving unit. A flat-pressure electrode driving channel for driving the electrode to move is formed between the upper flat-pressure electrode driving unit and the lower flat-pressure electrode driving unit. The flat-press electrode driving unit includes a mounting frame, and guide rails are respectively provided on both sides of the mounting frame. The guide rails are provided with pressure plate units that slide with the guide rails and press the electrode in a flat-press manner. There are at least two sets of pressure plate units. The mounting frame is provided with a pressure plate driving unit corresponding to each set of pressure plate units. The pressure plate driving unit is used to drive the corresponding set of pressure plate units to move along the guide rails. The laser cutting device includes laser cutting units respectively disposed on both sides of the flat-pressure electrode driving channel. The laser cutting unit includes a laser optical path assembly for performing laser cutting on the electrode and an optical path adjustment assembly for adjusting the position of the laser optical path assembly in the horizontal and vertical directions perpendicular to the flat-pressure electrode driving channel.

2. The flat-pressure type electrode laser cutting device according to claim 1, characterized in that: The guide rail includes arc track segments located at the front and rear ends of the mounting frame, and the two ends of the two arc track segments are connected by two non-intersecting straight track segments; the flat-pressure electrode driving channel is located between two adjacent straight tracks belonging to the two flat-pressure electrode driving units.

3. The flat-pressure type electrode laser cutting device according to claim 2, characterized in that: The pressure plate unit includes a base assembly and a pressure plate assembly; the base assembly includes base side plates located on both sides of the mounting frame and slidably engaged with corresponding guide rails, and a base bottom plate connected to the two base side plates; the pressure plate assembly includes a mounting plate parallel to the base bottom plate and a pressure plate, the pressure plate being fixedly mounted on the mounting plate; the base bottom plate is provided with a linear guide rod perpendicular to it, the mounting plate is slidably engaged with the linear guide rod, and a compression spring is installed between the mounting plate and the base bottom plate; the base side plates are equipped with rollers located above and below the corresponding guide rails, respectively, and the rollers are in rolling engagement with the corresponding guide rails.

4. The flat-pressure type electrode laser cutting device according to claim 3, characterized in that: The flat-pressure electrode driving unit also includes a constraint track for adjusting the distance between the pressure plate and the base plate. The constraint track includes an arc-shaped constraint track corresponding to the arc track segment. The arc-shaped constraint track has guide sections at both ends. The guide section located on the entrance side of the arc-shaped constraint track is used to guide the pressure plate unit to enter and gradually reduce the distance between the pressure plate and the base plate. The guide section located on the exit side of the arc-shaped constraint track is used to guide the pressure plate unit to move out and gradually increase the distance between the pressure plate and the base plate. In the lower flat pressure electrode driving unit, a straight constraint track is provided between the guide sections of the two arc-shaped constraint tracks, located on the lower side of the flat pressure electrode driving channel. The straight constraint track is used to fix the distance between the pressure plate and the base plate to withstand the pressure. A constraint wheel seat is installed on the base plate, and a constraint wheel that cooperates with the constraint track is installed on the constraint wheel seat.

5. The flat-pressure type electrode laser cutting device according to claim 1, characterized in that: It also includes a flat pressure adjustment component for adjusting the spacing between the two flat pressure electrode drive units to adjust the flat pressure of the pressure plate unit on the electrode.

6. The flat-pressure type electrode laser cutting device according to claim 1, characterized in that: The laser cutting unit further includes a dust collection assembly, which includes a dust collection hood corresponding to the laser optical path assembly and a dust collection pipe connected to the dust collection hood. The dust collection hood includes a cover with an opening facing the front side of the flat-pressure electrode driving channel. The front side of the cover is provided with a clearance notch to allow the edge of the electrode to be located inside the cover. The top surface of the cover is provided with a through hole for the laser excited by the laser optical path assembly to irradiate the edge of the electrode to perform laser cutting on the electrode.

7. The flat-pressure type electrode laser cutting device according to claim 1, characterized in that: The laser cutting device further includes a smoothing component, which includes a smoothing mounting plate. The smoothing mounting plate is provided with a smoothing support plate and a smoothing pressure plate that are parallel to each other. A smoothing channel is formed between the smoothing support plate and the smoothing pressure plate for smoothing the tabs on the side of the electrode sheet cut by the laser cutting device.

8. The flat-pressure type electrode laser cutting device according to claim 7, characterized in that: The smoothing assembly also includes a waste receiving assembly; the waste receiving assembly includes a waste receiving hopper disposed below the material receiving side of the smoothing channel; the smoothing pressure plate is provided with a first air inlet located directly above the waste receiving hopper, and the smoothing mounting plate is equipped with an air blowing pipe for blowing the cut waste material into the waste receiving hopper through the first air inlet.

9. The flat-pressure type electrode laser cutting device according to claim 8, characterized in that: A smoothing drive belt assembly is mounted on the smoothing mounting plate. The smoothing drive belt assembly includes pulleys located at both ends of the smoothing mounting plate and a drive belt sleeved on the pulleys. The drive belt passes through the smoothing channel and is located on the upper side of the electrode. A tensioning component is provided on the smoothing drive belt assembly. Hollow holes are provided on the drive belt corresponding to the first air blowing port.

10. The flat-pressure type electrode laser cutting device according to claim 8, characterized in that: The smoothing tray has a guide ramp at one end on the material receiving side of the smoothing channel to guide the electrode into the smoothing channel; the smoothing assembly also includes a guide control assembly for controlling the front end of the electrode to enter the smoothing channel through the guide ramp.

11. The flat-pressure type electrode laser cutting device according to claim 10, characterized in that: The guiding and control component includes a second air inlet disposed on the waste receiving hopper and an air blowing pipe disposed corresponding to the second air inlet. The second air inlet is disposed on the side of the waste receiving hopper facing the material receiving side of the smoothing channel.

12. The flat-pressure type electrode laser cutting device according to claim 11, characterized in that: The air blowing tube is connected to an air blowing shaft, and the guide control assembly further includes a control mechanism for driving the air blowing shaft to rotate in order to adjust the air blowing direction of the air blowing tube.

13. The flat-pressure type electrode laser cutting device according to claim 1, characterized in that: The laser cutting device further includes a backplate assembly, which includes a fixedly installed backplate seat. The backplate seat is provided with a backplate slide rail perpendicular to the flat-pressure electrode driving channel and a backplate slider that slides with the backplate slide rail. A backplate box is installed on the backplate slider. The top surface of the backplate box is arrayed with negative pressure holes. The backplate box is connected to a negative pressure pipe.

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