CN220921312U - Picosecond laser die cutting blanking mechanism - Google Patents
Picosecond laser die cutting blanking mechanism Download PDFInfo
- Publication number
- CN220921312U CN220921312U CN202322634809.7U CN202322634809U CN220921312U CN 220921312 U CN220921312 U CN 220921312U CN 202322634809 U CN202322634809 U CN 202322634809U CN 220921312 U CN220921312 U CN 220921312U
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- cutting
- laser
- bottom plate
- bracket
- lifting
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- 238000005520 cutting process Methods 0.000 title claims abstract description 75
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 238000003698 laser cutting Methods 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 11
- 238000009499 grossing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a picosecond laser die cutting and blanking mechanism which comprises a cutting bottom plate structure, a laser focal length lifting adjusting structure and an optical path system, wherein the cutting bottom plate structure is arranged on the cutting bottom plate structure; the cutting bottom plate structure comprises a first bracket, a pressing belt lifting cylinder, a pressing belt tending roller, a cutting bottom plate and a first waste pipeline, wherein the pressing belt tending roller is movably arranged above the cutting bottom plate, and the first waste pipeline is arranged below the cutting bottom plate; the laser focal length lifting adjusting structure comprises a second bracket and a lifting laser cutting assembly, and the lifting laser cutting assembly is positioned above the cutting bottom plate structure; the light path system comprises a picosecond laser, a beam expander and a reflecting mirror, the picosecond laser emits laser, the beam expander focuses light beams, the reflecting mirror changes the direction of the light beams, the light beams enter the liftable laser cutting assembly, and pole pieces on the cutting bottom plate are cut through the liftable laser cutting assembly to form pole lugs, V angles and cuts. The utility model adopts the picosecond laser cutting mode, has good cutting effect, high cutting speed and high production efficiency.
Description
Technical Field
The utility model relates to the field of manufacturing of lithium battery cells, in particular to a picosecond laser die cutting, blanking and cutting mechanism.
Background
Lithium batteries are widely used in industries such as notebook computers, electric tools, new energy automobiles and the like, and with the development of the industries, the demand of the lithium batteries is continuously increased, but the demand of the lithium batteries is also increased. At present, the manufacturing of the lithium battery cell is automatically processed by cell sheet-making winding equipment, and is mainly manufactured by winding and rubberizing after laminating a positive pole sheet, a negative pole sheet and a diaphragm according to a certain sequence through the cooperation of a winding head, a pole sheet feeding device, a diaphragm cutting device, a rubberizing device and the like. The cutting of the pole piece is one of important procedures in the winding process of the battery cell of the lithium battery, and the pole piece is mainly cut through a pole piece cutting mechanism of a pole piece feeding device. The existing pole piece cutting mechanism drives the cutter to cut the pole piece through the driving mechanism and guides the movement of the cutter by assisting the guide shaft and the guide shaft sleeve, however, due to the fit clearance between the guide shaft and the guide shaft sleeve, the cutter is easy to shake in the driving movement process, so that an effective shearing section is difficult to form between the cutter and the fixed cutter when the pole piece is cut, the cutting position of the pole piece on the pole piece cutting mechanism is uncertain, the number of burrs of the cut pole piece is large, dust is generated in the cutting process, and the quality of a lithium battery cell is seriously affected.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides a picosecond laser die cutting and blanking mechanism.
The technical scheme of the utility model is as follows:
A picosecond laser die cutting, blanking and cutting mechanism comprises a cutting bottom plate structure, a laser focal length lifting and adjusting structure and an optical path system;
The cutting bottom plate structure comprises a first bracket, a pressing belt lifting cylinder, a pressing belt smoothing roller, a cutting bottom plate and a first waste pipeline, wherein the pressing belt lifting cylinder, the pressing belt smoothing roller, the cutting bottom plate and the first waste pipeline are arranged on the first bracket;
The laser focal length lifting adjusting structure comprises a second bracket and a lifting laser cutting assembly arranged on the second bracket, and the lifting laser cutting assembly is positioned above the cutting bottom plate structure;
The light path system comprises a picosecond laser, a beam expander and a reflecting mirror, the picosecond laser emits laser, the beam expander is used for focusing a light beam, the reflecting mirror is used for changing the direction of the light beam, the light beam enters a liftable laser cutting assembly, and pole pieces on a cutting bottom plate are cut through the liftable laser cutting assembly to form pole lugs, V angles and cuts.
Further, the cutting bottom plate structure further comprises an air blowing knife and a negative pressure dust removing pipeline, wherein the air blowing knife and the negative pressure dust removing pipeline are movably arranged above the cutting bottom plate through a pressure belt lifting cylinder, and air blowing is performed on the cutting bottom plate and dust is collected.
Further, an air knife pressure regulating valve is arranged on one side of the first support, and the air knife pressure regulating valve is connected with the air blowing air knife through an air pipe.
Further, a pressure belt lifting cylinder pressure regulating valve is arranged on one side of the first support, and the pressure belt lifting cylinder pressure regulating valve is connected with the pressure belt lifting cylinder through an air pipe.
Further, a second waste pipe is arranged on one side of the first support, and cutting waste is synchronously collected through the first waste pipe and the second waste pipe.
Further, liftable laser cutting subassembly includes servo lift module, the movable mirror that shakes of setting on servo lift module and the field lens of setting in the mirror bottom that shakes that a plurality of set up side by side.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model adopts a laser cutting mode, does not need to repair and replace the cutter, and greatly reduces the production cost, the time for debugging, replacing and maintaining the cutter and the labor cost;
(2) The utility model specifically adopts picosecond laser to cut the tab, the V angle and the pole piece, the cutting mode is stable, the size error of the sheet can be greatly reduced, the quality of the sheet making process is obviously improved, the cutting effect is better, the sizes of burrs and beads are much smaller than those of pulse laser, the picosecond laser cutting speed is faster, the benefit is higher than that of the traditional pulse laser, and the production efficiency is improved;
(3) According to the utility model, during laser cutting, the pole piece is adsorbed by negative pressure and is smoothed by the tape pressing smoothing roller, so that the pole piece folds at the cutting position can be prevented from affecting the cutting effect;
(4) The utility model also has the functions of dust removal and waste collection;
(5) The utility model has high compatibility to the width of the pole piece, and can be compatible to the pole piece with the width of less than or equal to 800 mm.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a picosecond laser die-cutting and blanking mechanism provided by the utility model;
FIG. 2 is a schematic view of a cutting floor structure according to the present utility model;
Fig. 3 is a schematic structural diagram of the optical path system according to the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.
Examples
Referring to fig. 1, the present embodiment provides a picosecond laser die-cutting and blanking mechanism, which includes a cutting base plate structure 1, a laser focal length lifting adjustment structure 2 and an optical path system 3. Referring to fig. 2, the cutting floor structure 1 includes a first bracket 101, and a belt pressing lifting cylinder 102, a belt pressing pacifying roller 103, a blowing air knife 104, a negative pressure dust removing pipe 105, a cutting floor 106, a first waste pipe 107, a second waste pipe 108, an air knife pressure regulating valve 109 and a belt pressing lifting cylinder pressure regulating valve 110 which are arranged on the first bracket 101; the belt pressing and smoothing roller 103 is movably arranged above the cutting bottom plate 106, and is driven by the belt pressing and lifting cylinder 102 to press and smooth the pulled pole piece; the blowing air knife 104 and the negative pressure dust removing pipeline 105 are movably arranged above the cutting bottom plate 106 through the belt pressing lifting cylinder 102, and blow air to the cutting bottom plate 106 and collect dust; the first waste pipe 107 is arranged below the cutting bottom plate 106, adsorbs the pole piece in place through negative pressure, and synchronously collects cutting waste with the second waste pipe 108 on one side during laser cutting; the air knife pressure regulating valve 109 and the pressure belt lifting cylinder pressure regulating valve 110 are both positioned on one side of the first bracket 101, the air knife pressure regulating valve 109 is connected with the air knife 104 through an air pipe, and the pressure belt lifting cylinder pressure regulating valve 110 is connected with the pressure belt lifting cylinder 102 through an air pipe. The laser focal length lifting adjusting structure 2 comprises a second bracket 21 and a lifting laser cutting assembly arranged on the second bracket 21, wherein the lifting laser cutting assembly is positioned above the cutting bottom plate structure 1 and comprises a plurality of servo lifting modules 22 arranged side by side, a vibrating mirror 23 movably arranged on the servo lifting modules 22 and a field lens 24 arranged at the bottom of the vibrating mirror 23. Referring to fig. 3, the optical path system 3 includes a plurality of picosecond lasers 31, beam expanders 32 and reflectors 33, the picosecond lasers 31 emit laser beams, the beam expanders 32 are used for focusing the beams, the reflectors 33 are used for changing the beam directions, so that the beams enter the vibrating mirror 23 of the liftable laser cutting assembly, and then the pole pieces on the cutting bottom plate 106 are cut through the field lens 24 to form pole pieces, V angles and cuts.
The picosecond laser die cutting and blanking mechanism can realize laser cutting of pole pieces, V-shaped angle and pole piece cutting, and also has the functions of belt pressing, dust removal and waste collection. The specific working flow is as follows: the belt pressing lifting cylinder 102 descends, the belt pressing smoothing roller 103 presses down the pulled pole piece, the pole piece is stopped after being in place, the cutting bottom plate structure 1 is provided with negative pressure by the first waste pipeline 107 to adsorb the pole piece, the PLC sends laser to the signal picosecond laser 31, the picosecond laser 31 emits the laser to enter the vibrating mirror 23 through the beam expander 32 and the reflecting mirror 33, and the pole piece is output through the field lens 24 to be cut into pole lugs, V angles and cut; in the laser cutting process, the blowing air knife 104 and the negative pressure dust removing pipeline 105 collect dust at the cutting position in a blowing-sucking way, and the first waste pipeline 107 and the second waste pipeline 108 synchronously collect cutting waste (V-angle waste and tab waste); if the laser focal length needs to be adjusted by changing, the servo lifting module 22 is controlled to lift and adjust the heights of the field lens 23 and the cutting pole piece.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. The utility model provides a picosecond laser cross cutting blanking mechanism which characterized in that: the laser focus lifting adjusting device comprises a cutting bottom plate structure, a laser focus lifting adjusting structure and an optical path system;
The cutting bottom plate structure comprises a first bracket, a pressing belt lifting cylinder, a pressing belt smoothing roller, a cutting bottom plate and a first waste pipeline, wherein the pressing belt lifting cylinder, the pressing belt smoothing roller, the cutting bottom plate and the first waste pipeline are arranged on the first bracket;
The laser focal length lifting adjusting structure comprises a second bracket and a lifting laser cutting assembly arranged on the second bracket, and the lifting laser cutting assembly is positioned above the cutting bottom plate structure;
The light path system comprises a picosecond laser, a beam expander and a reflecting mirror, the picosecond laser emits laser, the beam expander is used for focusing a light beam, the reflecting mirror is used for changing the direction of the light beam, the light beam enters a liftable laser cutting assembly, and pole pieces on a cutting bottom plate are cut through the liftable laser cutting assembly to form pole lugs, V angles and cuts.
2. The picosecond laser die-cutting and blanking mechanism of claim 1, wherein: the cutting bottom plate structure further comprises an air blowing knife and a negative pressure dust removing pipeline, wherein the air blowing knife and the negative pressure dust removing pipeline are movably arranged above the cutting bottom plate through a pressure belt lifting cylinder, and air blowing is performed on the cutting bottom plate and dust is collected.
3. A picosecond laser die-cutting and blanking mechanism according to claim 2, wherein: one side of the first bracket is provided with an air knife pressure regulating valve, and the air knife pressure regulating valve is connected with an air blowing air knife through an air pipe.
4. The picosecond laser die-cutting and blanking mechanism of claim 1, wherein: one side of the first bracket is provided with a pressure belt lifting cylinder pressure regulating valve, and the pressure belt lifting cylinder pressure regulating valve is connected with the pressure belt lifting cylinder through an air pipe.
5. The picosecond laser die-cutting and blanking mechanism of claim 1, wherein: one side of the first bracket is provided with a second waste pipe, and cutting waste is synchronously collected through the first waste pipe and the second waste pipe.
6. The picosecond laser die-cutting and blanking mechanism of claim 1, wherein: the liftable laser cutting assembly comprises a plurality of servo lifting modules arranged side by side, a vibrating mirror movably arranged on the servo lifting modules and a field lens arranged at the bottom of the vibrating mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322634809.7U CN220921312U (en) | 2023-09-26 | 2023-09-26 | Picosecond laser die cutting blanking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322634809.7U CN220921312U (en) | 2023-09-26 | 2023-09-26 | Picosecond laser die cutting blanking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220921312U true CN220921312U (en) | 2024-05-10 |
Family
ID=90961002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322634809.7U Active CN220921312U (en) | 2023-09-26 | 2023-09-26 | Picosecond laser die cutting blanking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220921312U (en) |
-
2023
- 2023-09-26 CN CN202322634809.7U patent/CN220921312U/en active Active
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