A lithium battery laser cutting sheet material collecting device

Abstract

The application relates to the technical field of lithium battery production and processing, in particular to a lithium battery laser cutting sheet material collecting device, which comprises a rack, a laser cutting machine arranged on the rack, a cooling assembly and a material collecting assembly arranged below the laser cutting machine; the cooling assembly comprises a cold water roller and a plurality of cooling rings; the cold water roller is rotationally connected to the rack, is hollow and is connected with a cold water feeding element; the plurality of cooling rings are arranged in the axial direction of the cold water roller at intervals, the upper surfaces of the plurality of cooling rings form bearing surfaces, the upper surfaces of the plurality of cooling rings can abut against the sheet material to be cut, a support is communicated between each cooling ring and the cold water roller, a driving element is arranged on the cold water roller, and the driving element is used for driving the cold water roller to rotate; the material collecting assembly is arranged below the cold water roller and collects the cut sheet material. The application has the effects of reducing the metal particles attached to the surface of the cut sheet material and improving the neatness of the collected material.

Description

Technical Field

[0001] This application relates to the field of lithium battery production and processing technology, and in particular to a lithium battery laser-cut sheet material receiving device. Background Technology

[0002] In the lithium battery production process, strip-shaped electrode materials need to be cut into individual electrode sheets; this process is called electrode forming. Various battery equipment manufacturers mainly use three electrode forming methods: punching machines, metal die-cutting machines, and laser cutting machines.

[0003] The laser cutting machine includes a frame, and multiple cutting rollers and a laser light source mounted on the frame. The multiple cutting rollers include two or more rotating rollers and two or more stationary rollers. The rotating rollers and stationary rollers are coaxial and have the same diameter, and are spaced apart along the axial direction. The stationary rollers are provided with grooves, and the rotating rollers can rotate relative to the stationary rollers. The laser light source can emit a laser beam into the grooves.

[0004] The aforementioned technologies have the following technical defects: During the laser cutting process, the electrode material is instantly melted and sputtered, resulting in a certain amount of metal particles being sputtered onto the surface of the electrode. This causes the surface of the cut electrode to be covered with a large number of metal particles, which can short-circuit the lithium battery. Furthermore, fly ash is generated during the cutting process, which can also contaminate the surface of the electrode. In addition, the cut sheets are prone to accumulation, resulting in messy material collection. Summary of the Invention

[0005] In order to reduce the metal particles adhering to the surface of the cut sheet and improve the cleanliness of the collected material, this application provides a lithium battery laser-cut sheet material collection device.

[0006] The lithium battery laser-cut sheet material receiving device provided in this application adopts the following technical solution:

[0007] A lithium battery laser-cut sheet material receiving device includes a frame located below a laser cutting machine, comprising a cooling assembly and a receiving assembly. The cooling assembly includes a cold water roller and multiple cooling rings. The cold water roller is rotatably connected to the frame and is hollow, with a cooling feeder connected to it. The multiple cooling rings are spaced apart along the axial direction of the cold water roller, and their upper surfaces form a support surface. The upper surfaces of the multiple cooling rings can all abut against the sheet material to be cut. Each cooling ring is connected to the cold water roller by a support column. The cold water roller is equipped with a driving component for driving the cold water roller to rotate. The receiving assembly is located below the cold water roller and collects the cut sheet material.

[0008] By adopting the above technical solution, when cutting the electrode sheet, the drive unit is activated, which makes multiple cooling rings face upward and the supporting surface fits against the bottom surface of the sheet to be cut. The cooling unit is activated, which delivers cold water to the cooling rings. The laser cutting machine cuts the sheet. The drive unit is activated again, which drives the cooling rings to rotate, causing the sheet supported on the surface of the cooling rings to fall into the receiving assembly. This reduces the metal particles attached to the surface of the cut sheet and improves the cleanliness of the receiving assembly.

[0009] Optionally, the size of the support surface formed by the cooling ring is smaller than the area of ​​the sheet to be cut.

[0010] By adopting the above technical solution, the cooling ring can better support the sheet material during cutting, thus improving cutting stability and reducing the possibility of the sheet falling off during cutting.

[0011] Optionally, both the cooling ring and the support column are detachably connected.

[0012] By adopting the above technical solution, it is easy to replace cooling rings of different diameters or shapes.

[0013] Optionally, the receiving assembly includes a receiving box, a baffle, and a lifting component. The receiving box is inclined and positioned below the cold water roller. The end of the receiving box near the cold water roller is higher than the end of the receiving box away from the cold water roller. The baffle is slidably connected inside the receiving box and divides the receiving box into a storage chamber and a fabrication chamber. The storage chamber is higher than the fabrication chamber. A discharge trough is provided on the side of the receiving box near the fabrication chamber. A fabrication brush is provided at the discharge trough and is rotatably connected to the frame.

[0014] By adopting the above technical solution, the cut sheet enters the fabric chamber through the storage chamber, passes through the feeding trough, and the fabric brush flattens the sheet at the feeding trough and wipes the surface of the sheet to improve the cleanliness of the sheet.

[0015] Optionally, the fabric brush is provided with a material guiding component, which includes a material guiding belt and a material guiding drive. The material guiding belt is evenly distributed with multiple material guiding grooves, the depth of which is the same as the thickness of the cut sheet. The material guiding drive is used to drive the material guiding belt to transport the sheet.

[0016] By adopting the above technical solution, the fabric brush brushes the sheet into the guide groove, and only one sheet can be placed in one guide groove, which facilitates individual inspection and collection of each sheet.

[0017] Optionally, the guide belt is detachably connected to the guide drive.

[0018] By adopting the above technical solution, it is possible to replace guide belts with guide grooves of different diameters, shapes or depths, thereby improving the applicability of the guide assembly.

[0019] Optionally, a negative pressure component is provided below the guide belt, and the guide belt has a vent hole in each guide groove. The negative pressure component is used to create negative pressure in the guide groove.

[0020] By adopting the above technical solution, the negative pressure component reduces the possibility of the sheet falling off the conveyor belt.

[0021] Optionally, the material guiding assembly is provided with a suction component and a feeding component on the side away from the receiving box. The suction component is located at the end of the material guiding assembly away from the receiving box. The suction component includes a suction roller and multiple suction heads. The multiple suction heads are spaced apart along the axial direction of the suction roller. The suction heads are used to absorb the sheet material in the material guiding groove. A rotation drive is connected to the suction roller. The rotation drive is used to drive the suction roller to rotate. The feeding component is located on one side of the suction roller. The feeding component is used to receive the sheet material on the feeding head and convey the sheet material.

[0022] By adopting the above technical solution, the rotation drive is started, which drives the suction roller to rotate. The suction roller drives the suction head to approach the sheet in the guide groove and adsorbs each sheet. After adsorption, the rotation drive is started again, which drives the suction head to approach the feeding component, releases the suction head from adsorbing the sheet, and allows the sheet to fall onto the feeding component for conveying.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a cooling component, the cooling component cools the sheet during laser cutting, reducing the degree of melting of the sheet during cutting and reducing the number of metal particles that can adhere to the sheet, thereby reducing the number of metal particles adhering to the surface of the sheet after cutting.

[0025] 2. Through the material guiding component and the fabric brush, the fabric brush neatly arranges the sheet in the material guiding groove, and the suction component sucks it out and conveys it, thereby improving the neatness of the sheet. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a lithium battery laser-cut sheet material receiving device according to this application.

[0027] Figure 2 This is a front sectional view of a lithium battery laser-cut sheet material receiving device according to an embodiment of this application.

[0028] Figure 3 yes Figure 2 Enlarged view of part A.

[0029] Figure 4 This is a schematic diagram of the hidden side frame of a lithium battery laser-cut sheet material receiving device according to this application.

[0030] Figure 5This is a structural schematic diagram of the hidden side frame of the lithium battery laser cutting sheet receiving device of this application from another perspective.

[0031] Figure 6 This is a schematic diagram of the hidden frame of a lithium battery laser-cut sheet material receiving device according to this application.

[0032] Reference numerals: 1. Frame; 2. Laser cutting machine; 3. Cooling assembly; 31. Cold water roller; 32. Cooling ring; 33. Support column; 34. Drive component; 35. Cooling conveyor; 4. Receiving assembly; 41. Receiving box; 42. Baffle; 43. Lifting component; 44. Storage chamber; 45. Fabric feeding chamber; 46. Discharge chute; 5. Fabric brush; 6. Guide assembly; 61. Guide belt; 62. Guide chute; 63. Guide drive; 64. Vent hole; 7. Negative pressure component; 8. Suction component; 81. Suction roller; 82. Suction head; 83. Rotation drive; 9. Feeding component. Detailed Implementation

[0033] The following will refer to the appendices in the embodiments of the present invention. Figure 1-6 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] This application discloses a lithium battery laser-cut sheet material receiving device.

[0035] Reference Figure 1 , Figure 2 A lithium battery laser-cut sheet material receiving device includes a frame 1 and a laser cutter 2 mounted on the frame 1. The laser cutter 2 is a five-axis laser cutter 2, which includes a cutting section and a conveying section. The conveying section is used to convey materials, and the laser section is located at the top of the conveying section to cut the materials. The frame 1 is provided with a cooling component 3 and a receiving component 4 below the laser cutter 2.

[0036] Reference Figure 1 , Figure 2 The cooling assembly 3 includes a cooling water roller 31 and multiple cooling rings 32. The cooling water roller 31 is rotatably connected to the frame 1 via bearings. The cooling water roller 31 is hollow and connected to a cooling supply component 35, which is a cooling water pump. The cooling supply component 35 and the cooling water roller 31 are connected by a cooling water pipe, which is connected to the cooling water roller 31 via a movable joint. In this embodiment, two cooling supply components 35 are symmetrically arranged to improve the circulation of cooling water within the cooling rings 32.

[0037] Reference Figure 1 , Figure 2Multiple cooling rings 32 are evenly spaced along the axial direction of the cooling roller 31. The upper surface of the multiple cooling rings 32 forms a support surface, which is located below the laser cutting machine 2 and is horizontally positioned. The upper surface of each cooling ring 32 can abut against the sheet to be cut. The size of the support surface formed by the cooling rings 32 is smaller than the area of ​​the sheet to be cut, so that the sheet to be cut is located on the cooling rings 32, improving the stability of the sheet during cutting. By cooling the sheet during laser cutting, the degree of melting of the sheet during cutting is reduced, thereby reducing the metal particles adhering to the surface of the sheet after cutting. Furthermore, in order to accommodate sheets of different diameters, the cooling rings 32 and the support column 33 are detachably connected. The detachable connection can be a plug-in fit or a threaded connection. In this embodiment, a plug-in fit is used to ensure that the center points of the multiple cooling rings 32 are located within the same line. To further seal the cooling rings 32, sealing tape can be used together when installing the cooling rings 32.

[0038] Reference Figure 1 , Figure 2 Each cooling ring 32 is connected to a support column 33 via a cooling water roller 31. The support column 33 is perpendicular to the cooling water roller 31. One end of the cooling water roller 31 is connected to a drive unit 34 via a coupling. The drive unit 34 is a servo motor used to drive the cooling water roller 31 to rotate. The receiving assembly 4 is located below the cooling water roller 31 and collects the cut sheets. After all the sheets on the multiple cooling rings 32 have been cut, the drive unit 34 is activated to drive the cooling water roller 31 to rotate, collecting the sheets into the receiving assembly 4.

[0039] Reference Figure 2 , Figure 3The receiving assembly 4 includes a receiving box 41, a baffle 42, and a lifting component 43. The receiving box 41 is inclined and positioned below the cooling water roller 31. The end of the receiving box 41 closer to the cooling water roller 31 is higher than the end of the receiving box 41 farther away from the cooling water roller 31. The higher end of the receiving box 41 is located below the cooling water roller 31, which facilitates the collection of sheets falling from the cooling ring 32. The baffle 42 is slidably connected to the receiving box 41. The sliding direction of the baffle 42 is the same as the height direction of the receiving box. The baffle 42 divides the receiving box 41 into a storage chamber 44 and a cloth chamber 45. The storage chamber 44 is higher than the cloth chamber 45. A discharge channel 46 is provided on the side of the receiving box near the cloth chamber 45. A cloth brush 5 is provided at the discharge channel 46. The height of the cloth brush 5 can be adjusted by lifting and lowering by a screw drive. It is not shown in this embodiment. The cloth brush 5 is adjusted so that one layer of sheet material passes under the cloth brush 5 each time. The thickness of the sheet material passed is the same as the thickness of the cut sheet material. The cloth brush 5 is rotatably connected to the frame 1 through a bearing. To facilitate opening the baffle 42, a lifting component 43 is positioned above the baffle 42 to raise and lower it. When the lifting component 43 is activated, the baffle 42 is opened, and a portion of the sheet material in the storage chamber 44 falls into the fabric chamber 45. Then, the baffle 42 is closed, reducing the possibility of excessive sheet material accumulating at the discharge chute 46. The sheet material passes through the discharge chute 46 and enters below the fabric brush 5. The fabric brush 5 flattens the sheet material. On the one hand, the fabric brush 5 flattens the sheet material, and on the other hand, it wipes the surface of the sheet material, reducing the possibility of moisture forming on the sheet material due to alternating hot and cold temperatures, thereby improving the cleanliness of the collected material.

[0040] Reference Figure 3 , Figure 4 The fabric brush 5 is equipped with a material guiding assembly 6, which includes a material guiding belt 61 and a material guiding drive 63. Multiple material guiding grooves 62 are evenly distributed on the material guiding belt 61. The number of material guiding grooves 62 is the same as the number of cooling rings 32; in this embodiment, eight grooves are provided. The depth of each material guiding groove 62 is the same as the thickness of the cut sheet, ensuring that only one sheet can be accommodated in each groove. The material guiding drive 63 drives the material guiding belt 61 to transport the sheet; specifically, the material guiding drive 63 is a drive roller transmission structure. To facilitate the sheet entering the material guiding groove 62, the fabric brush 5 is rotatably connected to the frame 1 via a drive motor. The drive motor is a servo motor, which drives the fabric brush 5 to rotate, thereby guiding the sheet into the material guiding groove 62.

[0041] Reference Figure 5 , Figure 6 A negative pressure component 7 is provided below the guide belt 61. The negative pressure component 7 consists of a negative pressure plate and a vacuum pump placed inside the guide belt 61. The negative pressure plate is in close contact with the guide belt 61. The guide belt 61 has a vent hole 64 in each guide groove 62. The negative pressure plate has an air hole that communicates with the vent hole 64. When the vacuum pump is started, the negative pressure component 7 forms a negative pressure in the guide groove 62.

[0042] Reference Figure 5 , Figure 6 The material guiding assembly 6 has a suction component 8 and a feeding component 9 on the side away from the receiving box 41. The suction component 8 is located at the end of the material guiding assembly 6 away from the receiving box 41. The suction component 8 includes a suction roller 81 and multiple suction heads 82. The multiple suction heads 82 are equally spaced along the axial direction of the suction roller 81. In this embodiment, eight suction heads 82 are also provided. One suction head 82 corresponds to one material guiding groove 62. The suction head 82 is a vacuum suction cup and is used to adsorb the sheet material in the material guiding groove 62. A rotary drive 83 is connected to the suction roller 81 via a coupling. The rotary drive 83 is also a servo motor. The rotary drive 83 is used to drive the suction roller 81 to rotate. The feeding component 9 is located on one side of the suction roller 81. The feeding component 9 is used to receive the sheet on the feeding head and convey the sheet. After the suction head 82 sucks up the sheet, it starts the rotary drive 83. The rotary drive 83 drives the suction roller 81 to rotate. The suction roller 81 drives the suction head 82 to rotate above the feeding component 9. The feeding component 9 conveys the sheet.

[0043] The implementation principle of the lithium battery laser cutting sheet material collection device in this application embodiment is as follows: When cutting the electrode sheet, the cooling component 3 is activated so that the cooling ring 32 can cool the sheet material, reducing the possibility of the sheet material melting due to excessive temperature during cutting; at the same time, after the sheet material is cut, the sheet material falls out from the feeding channel 46 of the collection box, and is guided out by the cloth brush 5 and the guiding component 6. Finally, the suction component makes the sheet material flat and placed on the feeding component 9, reducing the metal particles attached to the surface of the sheet material after cutting and improving the cleanliness of the collection.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lithium battery laser-cut sheet material receiving device, comprising a frame (1) and a laser cutter (2) mounted on the frame (1), characterized in that: The frame (1) is provided with a cooling component (3) and a material receiving component (4) below the laser cutting machine (2); The cooling assembly (3) includes a water cooling roller (31) and multiple cooling rings (32). The water cooling roller (31) is rotatably connected to the frame (1). The water cooling roller (31) is hollow and connected to a cooling feeder (35). Multiple cooling rings (32) are spaced apart along the axial direction of the water cooling roller (31). The upper surface of the multiple cooling rings (32) forms a support surface. The upper surface of the multiple cooling rings (32) can abut against the sheet to be cut. Each cooling ring (32) is connected to the water cooling roller (31) by a support column (33). The water cooling roller (31) is provided with a drive member (34). The drive member (34) is used to drive the water cooling roller (31) to rotate. The receiving assembly (4) is located below the cold water roller (31) and collects the cut sheets.

2. The lithium battery laser-cut sheet material receiving device according to claim 1, characterized in that: The size of the support surface formed by the cooling ring (32) is smaller than the area of ​​the sheet to be cut.

3. A lithium battery laser-cut sheet material receiving device according to claim 1 or 2, characterized in that: The cooling ring (32) and the support column (33) are both detachably connected.

4. The lithium battery laser-cut sheet material receiving device according to claim 1, characterized in that: The receiving assembly (4) includes a receiving box (41), a baffle (42) and a lifting component (43). The receiving box (41) is inclined and set below the cold water roller (31). The end of the receiving box (41) near the cold water roller (31) is higher than the end of the receiving box (41) away from the cold water roller (31). The baffle (42) is slidably connected inside the receiving box (41). The baffle (42) divides the receiving box (41) into a storage chamber (44) and a cloth chamber (45). The storage chamber (44) is higher than the cloth chamber (45). A discharge channel (46) is opened on the side of the receiving box near the cloth chamber (45). A cloth brush (5) is provided at the discharge channel (46). The cloth brush (5) is rotatably connected to the frame (1).

5. A lithium battery laser-cut sheet material receiving device according to claim 4, characterized in that: The fabric brush (5) is provided with a material guiding component (6), which includes a material guiding belt (61) and a material guiding drive (63). Multiple material guiding grooves (62) are evenly distributed on the material guiding belt (61). The depth of the material guiding grooves (62) is the same as the thickness of the cut sheet. The material guiding drive (63) is used to drive the material guiding belt (61) to transport the sheet.

6. The lithium battery laser-cut sheet material receiving device according to claim 5, characterized in that: The guide belt (61) is detachably connected to the guide drive (63).

7. A lithium battery laser-cut sheet material receiving device according to claim 6, characterized in that: The guide belt (61) is provided with a negative pressure component (7) below it. The guide belt (61) has a vent hole (64) in each guide groove (62). The negative pressure component (7) is used to form a negative pressure in the guide groove (62).

8. A lithium battery laser-cut sheet material receiving device according to claim 5, characterized in that: The material guiding assembly (6) is provided with a suction component (8) and a feeding component (9) on the side away from the receiving box (41). The suction component (8) is located at the end of the material guiding assembly (6) away from the receiving box (41). The suction component (8) includes a suction roller (81) and multiple suction heads (82). The multiple suction heads (82) are spaced apart along the axial direction of the suction roller (81). The suction heads (82) are used to adsorb the sheet material in the guiding groove (62). A rotation drive (83) is connected to the suction roller (81). The rotation drive (83) is used to drive the suction roller (81) to rotate. The feeding component (9) is located on one side of the suction roller (81). The feeding component (9) is used to receive the sheet material on the suction head and convey the sheet material.

Images