CN104384724B - A kind of laser cutting device and its cutting method for cutting lug - Google Patents

Abstract

The invention discloses a laser cutting device for cutting tabs, comprising: an adsorption cutting mechanism, a material discharging mechanism and a material receiving mechanism; A sliding laser cutting device, the laser cutting device is provided with a laser head and a laser vibrating mirror; an adsorption device corresponding to the position of the laser cutting device is provided at the bottom of the cutting platform, and the adsorption device is provided with a vacuum chamber and a vacuum device; the vacuum device and The vacuum chamber is connected to generate negative pressure inside the vacuum chamber; the vacuum chamber is provided with adsorption holes, which are used for the negative pressure inside the vacuum chamber to make the battery pole pieces be adsorbed on the adsorption device through the adsorption holes. In this way, fast cutting speed and good quality of the lug can be achieved, thereby improving work efficiency.

Description

Laser cutting equipment and cutting method for cutting tabs

technical field

The invention relates to the field of batteries, in particular to a laser cutting device for cutting tabs and a cutting method thereof.

Background technique

At present, the most important part of lithium battery or lead-acid battery is the polar plate. The quality of the polar plate directly affects the performance and service life of the battery. The polar plate is cut into small pieces by cutting or stamping. The most primitive method is to adopt manual cutting, manually stack and fix the pole plates and cut them with a saw blade. The cutting efficiency of this method is low, the cutting quality cannot be guaranteed, and manual operation has certain potential safety hazards. Of course, die punching is still used at present. Compared with manual cutting, this method improves work efficiency, but die punching is easy to cause large burrs, which poses a great hidden danger to the safety of the battery. With the loss of the mold, the consistency of the plate quality cannot be guaranteed, and unqualified materials are likely to be produced, causing losses to the enterprise.

Contents of the invention

In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a laser cutting device for cutting tabs, which can achieve fast cutting speed and good quality of tabs, thereby improving work efficiency.

To achieve this purpose, the present invention provides a laser cutting device for cutting tabs, including: an adsorption cutting mechanism connected to one end of the adsorption cutting mechanism, used to transport the battery pole piece to the discharge material cut by the adsorption cutting mechanism mechanism and the receiving mechanism connected to the other end of the adsorption cutting mechanism for recovering the cut battery pole pieces;

The adsorption cutting mechanism includes: a cutting platform, on which a gantry frame is arranged, on which a sliding laser cutting device is arranged, and the laser cutting device is provided with a laser head and a laser vibrating mirror;

An adsorption device corresponding to the position of the laser cutting device is provided at the bottom of the cutting platform, and the adsorption device is provided with a vacuum chamber and a vacuum device; the vacuum device is connected with the vacuum chamber for making the laser cutting device Negative pressure is generated inside the vacuum chamber; the vacuum chamber is provided with adsorption holes, and the negative pressure inside the vacuum chamber is used to make the battery pole pieces be adsorbed on the adsorption device through the adsorption holes.

Preferably, the discharge mechanism includes: a discharge platform for placing battery pole pieces, and a discharge material for leveling the battery pole pieces and adjusting the stretching tension of the battery pole pieces is provided at the bottom of the discharge platform. The tension adjusting device is provided with a discharge reel at the end of the discharge platform, and a discharge speed regulating device for adjusting the discharge speed of the discharge reel is provided at the lower end of the discharge reel.

Preferably, the discharge tension adjusting device includes: a discharge drum, a discharge connection frame, a discharge cylinder and a discharge potentiometer;

The discharge roller is used to pass the battery pole piece and apply tensile force to the battery pole piece;

The discharge drum is connected to the discharge cylinder through the discharge connection frame, and is used to adjust the tensile force of the discharge drum through the expansion and contraction of the discharge cylinder; the discharge potentiometer is set on the The discharge connecting frame is used to adjust the stretching amount of the discharging cylinder by sensing the swing angle of the discharging connecting frame.

Preferably, the discharging mechanism further includes: a color deviation correction device;

The color deviation correction device is arranged on the discharge platform, and is used to prevent the discharge mechanism from deviation by identifying the color difference between the tab of the battery pole piece and the pole plate.

Preferably, the receiving mechanism includes: a receiving platform for receiving cut and completed battery pole pieces, at the bottom of the receiving platform, there is a device for leveling the battery pole pieces and adjusting the stretching tension of the battery pole pieces. Rewinding tension adjustment device, a reel for retrieving and winding the cut battery pole pieces is provided at the end of the rewinding platform, and a reel for adjusting the rewinding of the rewinding reel is provided at the lower end of the rewinding reel. Feeding speed regulating device for feeding speed.

Preferably, the receiving mechanism further includes: an electrostatic precipitator arranged on the receiving platform;

The electrostatic precipitator is provided with: the upper surface rubber roller and the lower surface rubber roller respectively attached to the upper and lower surfaces of the battery pole piece, and respectively connected with the upper surface rubber roller and the lower surface rubber roller Adhesive Roller Tape.

Preferably, it includes: two laser cutting devices and the adsorption devices respectively corresponding to the positions of the two laser cutting devices; the two adsorption devices are connected by two sliding shafts, and the two sliding shafts The two ends of each are respectively provided with supports; a locking device is also provided on the adsorption device, and the locking device is used to lock the adsorption device to prevent the adsorption device from sliding on the sliding shaft.

Preferably, the cutting platform is provided with a pulling motor for pulling battery pole pieces, and a speed measuring and speed regulating device connected with the pulling motor;

The speed measuring and speed regulating device is used to detect and adjust the running speed of the battery pole pieces on the cutting platform.

Preferably, the suction cutting mechanism further includes: a dust suction device;

The dust suction device is connected to the laser cutting device and is close to the upper surface of the battery pole piece on the cutting platform, and is used to make the dust suction device move synchronously with the laser cutting device and absorb the battery Dust or particles on the upper surface of the pole piece;

The dust collection device is provided with a dust collection box, a suction pipe and a vacuum cleaner;

The dust collection box is connected to the vacuum cleaner through the suction pipe;

The dust suction box is provided with a dust suction port, and the dust suction port is close to the upper surface of the battery pole piece.

A method for cutting tabs with laser cutting equipment, comprising:

Step 1: Manually place the battery pole pieces on the laser cutting equipment;

Step 2: Set cutting graphics and set cutting parameters;

Step 3: Start the laser cutting equipment;

Step 4: The adsorption device, dust collection device, and electrostatic precipitator are running to absorb impurities or particles on the battery pole piece;

Step 5: The feeding mechanism, the receiving mechanism, and the pulling motor are running, and the battery pole pieces are delivered to the laser cutting device;

Step 6: The laser cutting device cuts the battery pole pieces;

Step 7: Adjust the tension of the battery pole piece by the feeding tension adjustment device and the receiving tension adjustment device;

The discharge speed regulating device adjusts the speed of the discharge reel;

The receiving speed regulating device adjusts the receiving speed of the receiving reel;

The color deviation correction device identifies the color difference of the battery pole piece to prevent the battery pole piece from deviation;

Step 8: After the cutting of the battery pole piece is completed, stop the operation of the laser cutting equipment.

As can be seen from the above technical solutions, the present invention has the following advantages:

The discharging mechanism transports the battery pole pieces to the adsorption cutting mechanism for cutting, and the receiving mechanism recycles the cut battery pole pieces, thus realizing cutting automation, making feeding, cutting, and recycling complete in one, and improving work efficiency.

In the adsorption cutting mechanism part: the laser cutting device can slide on the gantry, so that the laser cutting equipment for cutting tabs can cut battery pole pieces of different widths and sizes, improving the adaptability of the equipment. The adsorption cutting mechanism includes a laser vibrating mirror and a linear module, which realizes two-dimensional scanning and can cut the tabs of the battery pole piece while the battery pole piece is running, improving the cutting efficiency and accuracy.

There is an adsorption device at the bottom of the cutting platform. The vacuum chamber of the adsorption device absorbs the dust or particles on the lower surface of the battery pole piece through the adsorption hole, and under the action of the adsorption device, the battery pole piece is tightly attached to the adsorption hole to ensure that the battery The flatness of the pole piece improves the cutting quality.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is the overall structural diagram of an embodiment of the laser cutting equipment that provides the cutting lug of the present invention;

Fig. 2 is an overall structural diagram of an embodiment of a laser cutting device for cutting tabs provided by the present invention;

Fig. 3 is a structural diagram of an embodiment of the suction cutting mechanism in the present invention;

Fig. 4 is the structural diagram of an embodiment of the discharging tension regulating device in the present invention;

Fig. 5 is the structural diagram of an embodiment of adsorption device among the present invention;

Fig. 6 is the connection schematic diagram of adsorption device in the present invention;

Fig. 7 is the structural diagram of an embodiment of electrostatic precipitator among the present invention;

Figure 8 is a structural diagram of an embodiment of the dust suction device in the present invention;

Fig. 9 is a flow chart of a method for cutting tabs by a laser cutting device of the present invention.

Explanation of reference signs:

1 adsorption cutting mechanism, 2 feeding mechanism, 3 receiving mechanism, 4 battery pole pieces, 10 cutting platform, 11 laser cutting device, 12 pulling motor, 13 speed measuring and speed regulating device, 14 dust collection box, 15 gantry, 20 Unwinding platform, 21 Unloading roller, 22 Unloading cylinder, 23 Color deviation correction device, 24 Unloading speed control device, 25 Unloading potentiometer, 26 Unwinding reel, 30 Receiving platform, 31 Electrostatic precipitator, 32 Receiving Material speed control device, 33 reel, 41 adsorption device, 42 driving wheel, 43 driven wheel, 44 adsorption belt, 45 locking device, 46 support, 47 sliding shaft, 51 rubber roller on the upper surface, 52 rubber on the lower surface Class roller, 53 adhesive roller tape, 60 vacuum device, 61 vacuum box, 62 vacuum tube, 63 fixed part, 64 hollowed out part

detailed description

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

This embodiment provides a kind of laser cutting equipment for cutting tabs, please refer to Fig. 1, Fig. 2 and Fig. 3, including: suction cutting mechanism 1, connected with one end of suction cutting mechanism 1, used to transport battery pole pieces 4 A feeding mechanism 2 for cutting the adsorption cutting mechanism 1 and a receiving mechanism 3 connected to the other end of the adsorption cutting mechanism 1 for recovering the cut battery pole pieces 4;

Adsorption cutting mechanism 1 comprises: cutting platform 10, is provided with gantry frame 15 on cutting platform 10, is provided with the laser cutting device 11 that slides on gantry frame 15, and laser cutting device 11 is provided with laser head and laser vibrating mirror;

The bottom of the cutting platform 10 is provided with an adsorption device 41 corresponding to the position of the laser cutting device 11, and the adsorption device 41 is provided with a vacuum chamber and a vacuum device; the vacuum device is connected with the vacuum chamber to generate negative pressure inside the vacuum chamber; The chamber is provided with adsorption holes, and the negative pressure inside the vacuum chamber is used to make the battery pole piece 4 be adsorbed on the adsorption device 11 through the adsorption holes.

It can be seen that the discharge mechanism 2 transports the battery pole piece 4 to the adsorption cutting mechanism 1 for cutting, and the material receiving mechanism 3 recycles the cut battery pole piece 4, thereby realizing cutting automation, so that feeding, cutting and recycling are integrated. Increase work efficiency. In the adsorption cutting mechanism 1 part: the laser cutting device 11 can slide on the gantry 15, so that the laser cutting equipment for cutting tabs can cut battery pole pieces 4 of different widths and sizes, improving the adaptability of the equipment. The suction cutting mechanism 1 includes a laser oscillating mirror, which realizes two-dimensional scanning and can cut the tabs of the battery pole piece 4 while the battery pole piece 4 is running, thereby improving cutting efficiency and accuracy. An adsorption device 41 is arranged at the bottom of the cutting platform 10, and the vacuum chamber of the adsorption device 41 absorbs the dust or particles on the lower surface of the battery pole piece 4 through the adsorption hole, and under the action of the adsorption device 41, the battery pole piece 4 is tightly attached to the On the adsorption hole, ensure the flatness of the battery pole piece, thereby improving the cutting quality.

In this embodiment, the battery pole piece 4 includes pole plates and tabs, and the tabs are arranged on both sides of the substrate. When cutting, the tabs on both sides of the substrate need to be cut at the same time, so in the present invention, the laser cutting equipment is provided with Two laser cutting devices 11 . At the same time, the laser cutting equipment includes: two laser cutting devices 11 and adsorption devices 41 corresponding to the positions of the two laser cutting devices 11; Sliding shaft 47 is connected, and the two ends of two sliding shafts 47 are provided with support 46 respectively; On adsorption device 41, also be provided with locking device 45, locking device 45 is used for locking adsorption device 41, prevents adsorption device 41 from sliding Sliding on shaft 47.

It can be understood that the two laser cutting devices 11 slide on the gantry 15, so that battery pole pieces 4 of different widths can be cut. In order to adapt to the position of the laser cutting device 11, the adsorption device 41 can slide on two sliding shafts 47. After the adsorption device 41 is adapted to the position of the laser cutting device 11, it is locked by the locking device 45. The position of the adsorption device 41 prevents the adsorption device 41 from sliding during adsorption, so as to ensure the cutting quality. The locking device 45 can be configured as a device capable of manual locking and manual unlocking, which is convenient for personnel to operate.

In this embodiment, the adsorption holes provided in the vacuum chamber can be several evenly arranged elongated holes, which can not only allow the cutting laser to pass through the cut rectangular holes, but also play the role of adsorbing the lower surface of the battery pole piece 4 . The vacuum chamber is connected with the vacuum device by a vacuum tube like this. The vacuum device generates negative pressure inside the vacuum chamber, so that the battery pole piece 4 is adsorbed on the adsorption hole, and the impurities and particles on the lower surface of the battery pole piece 4 are adsorbed. The adsorption holes are several hollowed-out long holes evenly arranged. The external air flow enters the vacuum chamber evenly through the hollowed-out long holes. on the adsorption hole. The adsorption device 41 is arranged at the lower part of the battery pole piece 4, and the laser cuts from the upper surface of the battery pole piece 4 and passes through the hollowed-out long holes, so as to ensure that the heat of the laser will not damage the vacuum cavity. A dust collection box 14 can also be set at the bottom of the cutting platform 10. Specifically, the impurities and particles on the lower surface of the battery pole piece 4 are sucked into the vacuum chamber, and the impurities and particles are collected by the dust collection box 14. After removing the impurities and particles, remove the impurities and particles inside the dust collection box 14 to ensure the dust collection effect of the adsorption device 41.

The adsorption device 41 can be directly attached to the lower surface of the battery pole piece for adsorption. The adsorption device 41 may also include: a driving wheel 42 , a driven wheel 43 , and an adsorption belt 44 . Wherein the driving wheel 42 drives the transmission belt 44 and the driven wheel 43 to move, thereby indirectly driving the battery pole piece 4 to run.

The vacuum cavity of the adsorption device 41 has adsorption holes, and the adsorption belt 44 is covered on the adsorption holes, and is attached to the lower surface of the battery pole piece 4; the adsorption belt 44 runs under the drive of the driving wheel 43 and the driven wheel 44, and Under the action of friction, the battery pole piece 4 is driven to run. The vacuum device is connected with the vacuum chamber to generate negative pressure inside the vacuum chamber, and the battery pole piece 4 is tightly attached to the adsorption belt 44 to ensure the flatness of the battery pole piece 4 and improve the cutting quality.

Only when the adsorption belt 44 has a gap can the lower adsorption device 41 adsorb the lower side of the battery pole piece 4 . The adsorption belt 44 is provided with long holes for making the adsorption belt have gaps. Alternatively, a plurality of adsorption belts 44 arranged side by side are provided, and gaps are provided between the plurality of adsorption belts 44 . It can be understood that a plurality of adsorption belts 44 are provided on the driving wheel 13 and the driven wheel 14 , and gaps are provided between the adsorption belts 44 , so that the lower adsorption device can also ensure that the lower surface of the battery pole piece 12 is adsorbed.

In this embodiment, the cutting platform 10 is provided with a pulling motor 12 for pulling the battery pole piece 4, and a speed measuring and speed regulating device 13 connected to the pulling motor 12; the speed measuring and speed regulating device 13 is used to detect and adjust the cutting platform 10 the running speed of battery pole piece 4. It can be understood that the speed measuring and speed regulating device 13 can detect the current operating speed of the battery pole piece 4 and display it to the operator. The operator can adjust the speed measuring and speed regulating device 13 to adjust the pulling motor 12 according to the process requirements, thereby realizing the adjustment of the battery. The operating speed of the pole piece 4 is to meet the requirements of the production process.

In this embodiment, the discharge mechanism 2 includes: a discharge platform 20 for placing the battery pole piece 4, and a device is provided at the bottom of the discharge platform 20 to make the battery pole piece 4 flat and to adjust the battery pole piece 4 pull. The discharge tension regulating device of tensile force is provided with a discharge reel 26 at the end of the discharge platform 20, and a discharge speed regulating device 24 for adjusting the discharge speed of the discharge reel 26 is provided at the lower end of the discharge reel 26.

It can be understood that the battery pole piece 4 is usually rolled and assembled, and the battery pole piece 4 is placed on the unwinding reel 26 before cutting, and the unwinding reel is provided with a discharge motor to discharge the battery pole piece 4 . The rotation of the unwinding reel 26 is driven by a motor. At the initial stage of cutting, the battery pole piece 4 on the unwinding reel 26 has a lot of reel material, and the output power of the motor needs to be increased to make the unwinding reel 26 rotate. Along with the reduction of the battery pole piece 4 reel material on the discharge reel 26, the material on the discharge reel 26 is gradually reduced. In order to ensure that the battery pole piece 4 is delivered to the attached cutting mechanism 1 at a uniform speed, it is necessary to reduce the power of the motor. Output Power. In view of the above problems, the control of the output power of the motor is realized by the discharge speed regulating device 24 here. Specifically, the discharging speed regulating device 24 can be realized by using an ultrasonic speed regulating device. Along with the reduction of the battery pole piece 4 roll material on the discharge reel 26, the quantity of the battery pole piece 4 roll material on the discharge reel 26 is detected by the ultrasonic speed governor by sending and receiving ultrasonic waves, and then realized Motor output power control.

In this embodiment, please refer to Fig. 4, the discharge tension adjustment device includes: a discharge drum 21, a discharge connection frame 27, a discharge cylinder 22 and a discharge potentiometer 25; the discharge drum 21 is used to make the battery The pole piece 4 passes through and applies tensile force to the battery pole piece 4; the discharge roller 21 is connected to the discharge cylinder 22 through the discharge connecting frame 27, and is used to adjust the stretching of the discharge cylinder 21 through the expansion and contraction of the discharge cylinder 22 Force; the discharge potentiometer 25 is arranged on the discharge connection frame 27, and is used to adjust the expansion and contraction of the discharge cylinder 22 by sensing the swing angle of the discharge connection frame 27.

Specifically, the tension adjustment of the battery pole piece 4 is realized by the self-weight of the discharging roller 21 . When the discharge roller 21 stretches the battery pole piece 4 to the bottom, the telescopic rods of the discharge cylinder 22 are all retracted into the cylinder. At this time, the discharge potentiometer 25 senses the swing angle of the discharge connection frame 27. At the maximum tension, the battery pole piece 4 above the discharging platform is in a tight state. When the discharge roller 21 stretches the battery pole piece 4 to the top, the telescopic rods of the discharge cylinder 22 all extend out of the cylinder. At this time, the discharge potentiometer 25 senses the swing angle of the discharge connection frame 27. Minimum tension, the battery pole pieces 4 above the discharge platform sag towards the discharge platform. In this way, the operator can adjust the swing angle of the discharge connecting frame 27 according to the potentiometer, and then adjust the tension state of the battery pole piece 4 .

In this embodiment, the discharging mechanism 2 also includes: a color deviation correction device 23; the color deviation correction device 23 is arranged on the discharge platform 20, and is used to prevent the The feeding mechanism 2 deviates from the feeding.

In this embodiment, the receiving mechanism 3 includes: a receiving platform 30 for receiving the battery pole piece 4 after cutting, and the bottom of the material receiving platform 30 is provided with a set for making the battery pole piece 4 flat and capable of adjusting the battery pole piece. 4 Stretching tension of the receiving tension adjustment device, the end of the receiving platform 30 is provided with a receiving reel 33 for recycling and winding the battery pole piece 4 after cutting, and the lower end of the receiving reel 33 is provided with a rewinding reel 33 The speed regulating device 32 for the rewinding speed of the reel 33 .

The same principle as the discharge mechanism 2, the rotation of the reel 33 is driven by the motor, and the cut battery pole piece 4 needs to be re-rolled for easy access and storage. Here, at the beginning of cutting, the reel 33 33 is without battery pole piece 4 coils, and does not need high-power output of the motor. And along with the increase of battery pole piece 4 roll material on the rewinding reel 33, the output power of the motor needs to be increased gradually. In this way, the control of the output power of the motor is realized through the receiving speed regulating device 32 . Specifically, the receiving speed regulating device 32 can be realized by using an ultrasonic speed regulating device. Along with the increase of the battery pole piece 4 reel material on the reel 33, the quantity of the battery pole piece 4 reel material on the rewind reel 33 is detected by the ultrasonic speed governor by sending and receiving ultrasonic waves, and then the motor is adjusted. The output power is controlled.

Similarly, the receiving tension adjustment device of the receiving mechanism 3 includes: a receiving drum, a receiving connecting frame, a discharging cylinder, and a discharging potentiometer; The receiving drum is connected with the receiving cylinder through the receiving connecting frame, which is used to adjust the stretching force of the receiving drum through the retracting of the receiving cylinder; the receiving potentiometer is set on the receiving connecting frame, and is used for receiving The swing angle of the material connecting frame is used to adjust the expansion and contraction of the material receiving cylinder. The specific implementation process is consistent with the control mode of the discharging mechanism and will not be repeated here.

In this embodiment, please refer to FIG. 7, the material receiving mechanism 3 also includes: an electrostatic precipitator 31 arranged on the material receiving platform 30; The upper surface glue roller 51 and the lower surface glue roller 52, and the sticky roller tape 53 that is connected with the upper surface glue roller 51 and the lower surface glue roller 52 respectively.

Here, the rubber roller 51 on the upper surface and the rubber roller 52 on the lower surface can be made of soft rubber materials. The upper surface rubber roller 51 and the lower surface rubber roller 52 rotate with the transmission of the battery pole piece 4 , and the adhesive roller tape 53 rotates together with the upper surface rubber roller 51 and the lower surface rubber roller 52 . The upper surface rubber roller 51 and the lower surface rubber roller 52 can stick and remove impurities and dust on the surface of the battery pole piece 4, and in the process of sticking and removing impurities, no static electricity is generated, so as to avoid static electricity damage to the battery pole piece during the dust removal process . While the upper surface rubber roller 51 and the lower surface rubber roller 52 adhere to the impurities and dust on the surface of the battery pole piece 4, the sticky roller tape 53 will stick to the surface of the upper surface rubber roller 51 and the lower surface rubber roller 52. Impurities and dust are sticked and removed, thereby ensuring the sticking effect of the upper surface rubber roller 51 and the lower surface rubber roller 52.

In this embodiment, please refer to FIG. 8 , the suction cutting mechanism 1 also includes: a dust suction device 60; the dust suction device 60 is connected to the laser cutting device 11 and is close to the upper surface of the battery pole piece 4 on the cutting platform 10 , used to make the vacuum device 60 move synchronously with the laser cutting device 11 and absorb the dust or particles on the upper surface of the battery pole piece 4 .

Specifically, the dust collection device 60 is provided with a dust collection box 61, a suction pipe 62 and a vacuum cleaner; the dust collection box 61 is connected with the vacuum cleaner through the suction pipe 62; the dust collection box 61 is provided with a suction port, and the suction port is close to the battery The upper surface of pole piece 4.

In this embodiment, in order to ensure the adsorption effect on the upper surface of the battery pole piece 4, so that the laser cutting and dust collection run synchronously, the dust collection box 61 is a quadrilateral structure; the middle part of the dust collection box 61 is provided with a hollow part 64 for The laser cuts through the cutout 64 . The dust suction device 60 is also provided with a fixing part 63; the fixing part 63 is connected with the laser cutting device 11 of the laser cutting machine, and is used to make the dust suction device 60 and the laser cutting device 11 move synchronously. In this way, the dust collector 60 is connected to the laser cutting device 11 through the fixing part 63 , and the fixing part 63 moves along with the movement of the laser cutting device 11 to ensure the adsorption effect on the upper surface of the battery pole piece 4 . Here the fixing part 63 adopts a sheet structure, and a clamping part is set inside the battery pole piece 4, and the fixing part 63 of the sheet structure is inserted into the clamping part inside the battery pole piece 4, so that the dust collector 60 and the battery pole piece 4 are fixed connect.

The present invention also provides a method for cutting tabs with laser cutting equipment, including:

S1: Manually place the battery pole pieces on the laser cutting equipment;

The battery pole pieces are rolled and packaged, and it is necessary to manually install the rolled and packaged battery pole pieces on the discharge mechanism of the laser cutting equipment. Manually place the battery pole pieces on the discharge platform, pass through the discharge tension adjustment device, and align with the color deviation correction device. Then pass the battery pole piece through the pulling motor, the adsorption device, the dust collection device, the electrostatic dust removal device, pass through the feeding tension adjustment device, and dock with the feeding reel.

S2: set cutting graphics, set cutting parameters;

Before cutting, set the cutting parameters and cutting graphics of the laser cutting equipment according to the current battery pole piece to be cut. The cutting parameters here include: setting the parameters of the laser cutting device according to the thickness and material of the battery pole piece, such as laser power, laser pulse frequency, the height of the laser head, etc. The setting of the cutting pattern is to input the preset cutting pattern into the laser cutting equipment program according to the needs of production and processing.

S3: Start the laser cutting equipment;

After the cutting graphics and cutting parameters are set, turn on the laser cutting equipment.

S4: The adsorption device, dust collection device, and electrostatic precipitator are running to absorb impurities or particles on the battery pole piece;

After turning on the laser cutting equipment, the adsorption device, vacuum device, and electrostatic precipitator operate first to absorb impurities or particles on the top and bottom of the battery pole piece. After a period of delay, run the battery tabs again. In this way, the adsorption device, dust collection device, and electrostatic precipitator can absorb the impurities or particles on the top and bottom of the battery pole piece, and then cut the battery pole piece to ensure the cutting quality.

S5: The discharging mechanism, the receiving mechanism and the pulling motor are running, and the battery pole pieces are delivered to the laser cutting device;

S6: The laser cutting device cuts the battery pole piece;

S7: Unwinding tension adjustment device and receiving tension adjustment device to adjust the tension of battery pole pieces;

The discharge speed regulating device adjusts the speed of the discharge reel;

The receiving speed regulating device adjusts the receiving speed of the receiving reel;

The color deviation correction device identifies the color difference of the battery pole piece to prevent the battery pole piece from deviation;

At the initial stage of cutting, there are too many battery pole pieces reels on the unwinding reel, and it is necessary to increase the output power of the motor to rotate the unwinding reel. With the reduction of the battery pole piece reel material on the unwinding reel, the material on the unwinding reel is gradually reduced. In order to ensure that the battery pole piece is delivered to the attached cutting mechanism at a uniform speed, the output power of the motor needs to be reduced. Here, the control of the output power of the motor is realized by the discharging speed regulating device. The discharging speed regulating device can be realized by an ultrasonic speed regulating device. With the reduction of the battery pole piece reel material on the unwinding reel, the ultrasonic governor sends and receives ultrasonic waves to detect the quantity of the battery pole piece reel material on the unwinding reel, and then realizes the control of the output power of the motor. control.

The principle is the same as that of the unwinding mechanism. The rotation of the rewinding reel is driven by the motor. The cut battery pole pieces need to be re-rolled for easy access and storage. Here, in the initial stage of cutting, there is no The battery pole sheet roll material does not require high-power output of the motor. And along with the increase of the battery pole sheet coil material on the reel, the output power of the motor needs to be gradually increased. In this way, the control of the output power of the motor is realized through the speed regulating device for receiving materials. Specifically, the material receiving speed regulating device can be realized by using an ultrasonic speed regulating device. With the increase of the battery pole piece roll material on the reel, the ultrasonic speed controller sends and receives ultrasonic waves to detect the quantity of the battery pole piece reel material on the reel, and then realizes the output power of the motor. control.

During the operation of the laser cutting equipment, the battery pole piece will not be able to be transmitted smoothly due to uneven force. The tension of the battery pole piece is adjusted by the discharging tension adjustment device and the receiving tension adjustment device, so as to ensure the flatness of the battery pole piece, and also ensure the uniform delivery to the laser cutting device.

The color correction device is installed on the discharge platform, which is used to prevent the discharge mechanism from deviation by identifying the color difference between the tab of the battery pole piece and the pole plate.

S8: The cutting of the battery pole piece is completed, and the operation of the laser cutting equipment is stopped.

The battery pole pieces thus cut are wound on the reel of the rewinding mechanism, which is convenient for the operator to carry.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A laser cutting device for cutting tabs, characterized in that it comprises: an adsorption cutting mechanism connected to one end of the adsorption cutting mechanism, a discharge mechanism for delivering battery pole pieces to the adsorption cutting mechanism for cutting, and It is connected with the other end of the adsorption cutting mechanism, and is used to recover the cutting mechanism of the battery pole piece; The adsorption cutting mechanism includes: a cutting platform, on which a gantry frame is arranged, on which a sliding laser cutting device is arranged, and the laser cutting device is provided with a laser head and a laser vibrating mirror; An adsorption device corresponding to the position of the laser cutting device is provided at the bottom of the cutting platform, and the adsorption device is provided with a vacuum chamber and a vacuum device; the vacuum device is connected with the vacuum chamber for making the laser cutting device A negative pressure is generated inside the vacuum chamber; the vacuum chamber is provided with an adsorption hole, and the negative pressure inside the vacuum chamber is used to make the battery pole piece be adsorbed on the adsorption device through the adsorption hole; The adsorption device also includes a driving wheel, a driven wheel and a plurality of adsorption belts, there are gaps between the plurality of adsorption belts, the adsorption belt covers the adsorption hole, and the adsorption belt is attached to the adsorption hole. the lower surface of the battery pole piece; The suction cutting mechanism also includes: a dust suction device; The dust suction device is connected to the laser cutting device and is close to the upper surface of the battery pole piece on the cutting platform, and is used to make the dust suction device move synchronously with the laser cutting device and absorb the battery Dust or particles on the upper surface of the pole piece; The dust collection device is provided with a suction box, a suction pipe and a vacuum cleaner, and the dust collection box is connected with the vacuum cleaner through the suction pipe; the dust collection box is provided with a suction port, and the dust suction port close to the upper surface of the battery pole piece; The dust collection box is a quadrilateral structure, and the middle part of the dust collection box is provided with a hollow part for cutting the laser through the hollow part. The dust collection device is also provided with a fixing part, which is connected with the The laser cutting device of the laser cutting machine is connected; The fixing part adopts a sheet structure, and a clamping part is provided inside the battery pole piece, and the fixing part of the sheet structure is inserted into the clamping part inside the battery pole piece. 2. The laser cutting equipment for cutting tabs according to claim 1, characterized in that, The discharge mechanism includes: a discharge platform for placing battery pole pieces, and a discharge tension adjustment device for leveling the battery pole pieces and adjusting the stretching tension of the battery pole pieces is provided at the bottom of the discharge platform A discharge reel is provided at the end of the discharge platform, and a discharge speed regulating device for adjusting the discharge speed of the discharge reel is provided at the lower end of the discharge reel. 3. The laser cutting equipment for cutting tabs according to claim 2, characterized in that, The discharging tension adjusting device includes: a discharging drum, a discharging connecting frame, a discharging cylinder and a discharging potentiometer; The discharge roller is used to pass the battery pole piece and apply tensile force to the battery pole piece; The discharge drum is connected to the discharge cylinder through the discharge connection frame, and is used to adjust the tensile force of the discharge drum through the expansion and contraction of the discharge cylinder; the discharge potentiometer is set on the The discharge connecting frame is used to adjust the stretching amount of the discharging cylinder by sensing the swing angle of the discharging connecting frame. 4. The laser cutting equipment for cutting tabs according to claim 2, characterized in that, The discharging mechanism also includes: a color deviation correction device; The color deviation correction device is arranged on the discharge platform, and is used to prevent the discharge mechanism from deviation by identifying the color difference between the tab of the battery pole piece and the pole plate. 5. The laser cutting equipment for cutting tabs according to claim 1, characterized in that, The receiving mechanism includes: a receiving platform for receiving the cut battery pole piece, and a receiving tension for making the battery pole piece flat and adjusting the stretching tension of the battery pole piece is arranged at the bottom of the material receiving platform An adjustment device, a reel for retrieving and winding the cut battery pole pieces is provided at the end of the rewinding platform, and a device for adjusting the rewinding speed of the reel is provided at the lower end of the rewinding reel Receiving speed regulating device. 6. The laser cutting equipment for cutting tabs according to claim 5, characterized in that, The receiving mechanism also includes: an electrostatic dust removal device arranged on the receiving platform; The electrostatic precipitator is provided with: the upper surface rubber roller and the lower surface rubber roller respectively attached to the upper and lower surfaces of the battery pole piece, and respectively connected with the upper surface rubber roller and the lower surface rubber roller Adhesive Roller Tape. 7. The laser cutting equipment for cutting tabs according to claim 1, characterized in that, It includes: two laser cutting devices and the adsorption devices respectively corresponding to the positions of the two laser cutting devices; the two adsorption devices are connected by two sliding shafts, and two of the two sliding shafts Ends are respectively provided with supports; a locking device is also provided on the adsorption device, and the locking device is used to lock the adsorption device to prevent the adsorption device from sliding on the sliding shaft. 8. The laser cutting equipment for cutting tabs according to claim 1, characterized in that, The cutting platform is provided with a pulling motor for pulling battery pole pieces, and a speed measuring and speed regulating device connected with the pulling motor; The speed measuring and speed regulating device is used to detect and adjust the running speed of the battery pole piece on the cutting platform. 9. A method for cutting tabs with laser cutting equipment, comprising: Step 1: Manually place the battery pole pieces on the laser cutting equipment; Step 2: Set cutting graphics and set cutting parameters; Step 3: Start the laser cutting equipment; Step 4: The adsorption device, dust collection device, and electrostatic dust removal device are operated to absorb impurities or particles on the battery pole piece. The dust suction device is connected to the laser cutting device and is close to the upper surface of the battery pole piece on the cutting platform. It is used to make the dust suction device move synchronously with the laser cutting device, and absorb the dust or particles on the upper surface of the battery pole piece; The dust collection device is provided with a suction box, a suction pipe and a vacuum cleaner, and the dust collection box is connected with the vacuum cleaner through the suction pipe; the dust collection box is provided with a suction port, and the dust suction port close to the upper surface of the battery pole piece; The dust collection box is a quadrilateral structure, and the middle part of the dust collection box is provided with a hollow part for cutting the laser through the hollow part. The dust suction device is also provided with a fixing part, which is connected with the The laser cutting device of the laser cutting machine is connected; The fixing part adopts a sheet structure, and a clamping part is arranged inside the battery pole piece, and the fixing part of the sheet structure is inserted into the clamping part inside the battery pole piece; Step 5: The feeding mechanism, the receiving mechanism, and the pulling motor are running, and the battery pole pieces are delivered to the laser cutting device; Step 6: The laser cutting device cuts the battery pole pieces; Step 7: Adjust the tension of the battery pole piece by the feeding tension adjustment device and the receiving tension adjustment device; The discharge speed regulating device adjusts the speed of the discharge reel; The receiving speed regulating device adjusts the receiving speed of the receiving reel; The color deviation correction device identifies the color difference of the battery pole piece to prevent the battery pole piece from deviation; The driving wheel of the adsorption device rotates, drives the adsorption belt and the driven wheel to rotate, and transmits the battery pole pieces adsorbed on the adsorption belt; Step 8: After the cutting of the battery pole piece is completed, stop the operation of the laser cutting equipment.