A lithium-ion battery multi-electrode synchronous cutting and scraping machine

Abstract

The present invention relates to the technical field of battery pole piece production equipment, and provides a lithium-ion battery multi-pole piece synchronous cutting and powder scraping machine. It comprises a workbench, one end of which is rotatably connected to a rotating shaft I through a vertical plate, the rotating shaft I is provided with multiple groups of circular saw blades, a telescopic cylinder is provided on the right side of a feed roller I through a "J"-shaped bracket, the bottom of the telescopic cylinder is connected to a support plate through a telescopic rod, a rotating shaft II is rotatably connected between the front and rear support plates, the rotating shaft II is provided with multiple groups of cylindrical grinding heads, one end of the rotating shaft II is rotatably connected to a displacement sensor, the right end of the feed roller II is provided with multiple telescopic cylinders through a gantry bracket, the bottom of the telescopic cylinder is connected to a cutter through a telescopic rod, a feed roller III is provided on the right side of the cutter, one end of the feed roller III is driven by a motor, and the other end is also rotatably connected to a displacement sensor. The beneficial effects of the present invention are: the cutting and powder scraping of pole pieces are realized in the same device, multiple pole pieces can be scraped at the same time, and the efficiency of pole piece powder scraping is improved.

Description

Technical Field

[0001] The invention relates to the technical field of battery pole piece production equipment, and in particular to a lithium-ion battery multi-pole piece synchronous cutting and powder scraping machine. Background Art

[0002] After the positive and negative electrode materials of lithium-ion batteries are coated and dried, they need to be cut into pole pieces of different specifications, and then a scraper is used to scrape the pole pieces to leave blanks and leave the pole ear welding position. In the prior art, there is an environmentally friendly pole piece scraping device for lithium-ion battery production, such as the Chinese patent with publication number CN207116577U, and a pole piece scraping device for lithium-ion battery production process disclosed in publication number CN106549142A. However, the battery pole piece scraping machines disclosed in these existing patents and other prior arts all use scrapers to scrape the pole pieces with a mechanical starting device, and can only scrape one pole piece at a time, or can only scrape both ends of the pole piece at the same time as in the patent CN106549142A. However, the efficiency is low and cannot meet the needs of modern factories.

[0003] Moreover, in the prior art, the pole pieces need to be cut into pole pieces of different specifications before being scraped with powder, and the cutting and scraping of the pole pieces are performed using different equipment, which seriously affects the production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a lithium-ion battery multi-electrode synchronous cutting and scraping machine, which is mainly used to solve the problem of low efficiency of single-electrode scraping when scraping the electrode; and to solve the problem of affecting production efficiency by operating different equipment for cutting and scraping the electrode.

[0005] The above technical problems of the present invention are mainly solved by the following technical scheme: comprising a workbench, an electrode sheet is slidably arranged on the upper end of the workbench, a group of vertical plates are arranged at one end of the workbench, the vertical plates are rotatably connected with a rotating shaft I, the rotating shaft I is provided with a plurality of circular saw blades, one end of the rotating shaft I is driven by a motor, the motor is fixed to the vertical plate, the workbench is provided with a through slot I on the right side of the circular saw blade, the workbench is rotatably connected with a feed roller I through the vertical plate at both the upper and lower ends of the through slot I, the feed roller I is driven by the motor, a group of "X"-shaped brackets are arranged on the right side of the feed roller I, a telescopic cylinder is arranged at the upper end of the "X"-shaped bracket, a telescopic rod is connected to the bottom of the telescopic cylinder, a support plate is connected to the bottom of the telescopic rod, a rotating shaft II is rotatably connected between the front and rear support plates, the rotating shaft II is provided with a plurality of cylindrical grinding heads, and the rotating shaft II is provided with a plurality of cylindrical grinding heads. The first end of the rotating shaft II is driven by a motor, and the other end of the rotating shaft II is rotatably connected to a displacement sensor. The workbench is provided with a through slot II on the right side of the rotating shaft II. The upper and lower ends of the through slot II are rotatably connected to feed rollers II through vertical plates. The feed roller II is driven by a motor. A gantry bracket is provided at the right end of the feed roller II. A plurality of telescopic cylinders are provided at the upper end of the gantry bracket. A telescopic rod is connected to the bottom of the telescopic cylinder. The telescopic rod is connected to a connecting plate. A cutter is commonly connected to the bottom of the connecting plate. A through slot III is provided on the right side of the cutter. The workbench is also rotatably connected to feed rollers III through the vertical plate at the upper and lower ends of the through slot III. One end of the feed roller III is driven by a motor, and the other end of the feed roller III is also rotatably connected to a displacement sensor. A controller is fixed to the workbench. The motor, the telescopic cylinder and the displacement sensor are all electrically connected to the controller.

[0006] Preferably, the feed roller I, the feed roller II and the feed roller III are rubber feed rollers. The rubber feed rollers have effective buffer hardness, which can avoid scratching the pole piece and affecting the electrical performance of the pole piece.

[0007] Preferably, the cylindrical grinding head is a white corundum grinding wheel grinding head.

[0008] Preferably, the cutter and the connecting plate, as well as the connecting plate and the telescopic rod are fixed by bolts.

[0009] The beneficial effects of the present invention are: the cutting and powder scraping of the pole pieces are carried out in the same device, a plurality of pole pieces can be powder scraped at the same time, and the efficiency of powder scraping of the pole pieces is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of the present invention. Figure Ⅰ ;

[0011] Figure 2 This is a structural schematic diagram of the present invention. Figure II ;

[0012] Figure 3 is a top view of the present invention;

[0013] Figure 4 is a bottom view of the present invention;

[0014] Figure 5 is a front view of the present invention;

[0015] Description of the markings in the figure:

[0016] 1. Workbench, 101. Through slot I, 102. Through slot II, 103. Through slot III, 2. Electrode sheet, 3. Vertical plate, 4. Rotating shaft I, 5. Motor, 6. Circular saw blade, 7a. Feed roller I, 7b. Feed roller II, 7c. Feed roller III, 8. X-shaped bracket, 9. Rotating shaft II, 10. Support plate, 11. Telescopic rod, 12. Cylindrical grinding head, 13. Displacement sensor, 14. Gantry bracket, 15. Cutter, 16. Connecting plate, 17. Controller, 18. Telescopic cylinder. DETAILED DESCRIPTION

[0017] The following are examples and the attached Figure 1-5 , the technical solution of the present invention is further specifically described.

[0018] Example 1

[0019] A lithium-ion battery multi-electrode synchronous cutting and scraping machine of the present embodiment comprises a workbench 1, an electrode sheet 2 is slidably arranged on the upper end of the workbench 1, and is characterized in that a group of vertical plates 3 are arranged at one end of the workbench 1, the vertical plates 3 are rotatably connected with a rotating shaft Ⅰ4, the rotating shaft Ⅰ4 is provided with a plurality of circular saw blades 6, one end of the rotating shaft Ⅰ4 is driven by a motor 5, the motor 5 is fixed to the vertical plate 3, a through groove Ⅰ101 is arranged on the right side of the circular saw blade 6 of the workbench 1, the workbench 1 is rotatably connected with a feed roller Ⅰ7a at both the upper and lower ends of the through groove Ⅰ101 through the vertical plate 3, the feed roller Ⅰ7a is driven by the motor 5, a group of "X"-shaped brackets 8 are arranged on the right side of the feed roller Ⅰ7a, a telescopic cylinder 18 is arranged on the upper end of the "X"-shaped bracket 8, a telescopic rod 11 is connected to the bottom of the telescopic cylinder 18, a support plate 10 is connected to the bottom of the telescopic rod 11, a rotating shaft Ⅱ9 is rotatably connected between the front and rear support plates 10, the rotating shaft Ⅱ9 is provided with a plurality of cylindrical grinding heads 12, one end of the rotating shaft Ⅱ9 is driven by the motor 5 , the other end of the rotating shaft Ⅱ9 is rotatably connected with a displacement sensor 13, the workbench 1 is provided with a through slot Ⅱ102 on the right side of the rotating shaft Ⅱ9, the upper and lower ends of the through slot Ⅱ102 are rotatably connected with a feed roller Ⅱ7b through a vertical plate 3, the feed roller Ⅱ7b is driven by a motor 5, a gantry bracket 14 is provided at the right end of the feed roller Ⅱ7b, a plurality of telescopic cylinders 18 are provided at the upper end of the gantry bracket 14, a telescopic rod 11 is connected to the bottom of the telescopic cylinder 18, the telescopic rod 11 is connected to a connecting plate 16, the bottom of the connecting plate 16 is commonly connected with a cutter 15, a through slot Ⅲ103 is provided on the right side of the cutter 15, the workbench 1 is also rotatably connected with a feed roller Ⅲ7c at the upper and lower ends of the through slot Ⅲ103 through the vertical plate 3, one end of the feed roller Ⅲ7c is driven by the motor 5, and the other end of the feed roller Ⅲ7c is also rotatably connected with the displacement sensor 13, a controller 17 is fixed to the workbench 1, and the motor 5, the telescopic cylinder 18 and the displacement sensor 13 are all electrically connected to the controller 17.

[0020] Among them, the feed rollers I7a, II7b and III7c are rubber feed rollers, which have effective buffer hardness and can avoid scratching the pole piece and affecting the electrical performance of the pole piece.

[0021] The cylindrical grinding head 12 is a white corundum grinding wheel grinding head.

[0022] The cutter 15 and the connecting plate 16 , as well as the connecting plate 16 and the telescopic rod 11 are fixed by bolts.

[0023] When in use, the large electrode sheet 2 is passed through the circular saw blade 6 and then through the feed roller Ⅰ7a, and then all motors 5 are started. The feed roller Ⅰ7a drives the electrode sheet 2 to move to the right, and the moving electrode sheet 2 is cut into 2 small-width electrode sheets in the process of passing through the bottom of the circular saw blade 6. Then, the 2 small-width electrode sheets enter the bottom of the cylindrical grinding head 12 under the transmission action of the feed roller Ⅰ7a. The displacement sensor 13 connected to the rotating shaft Ⅱ9 that drives the cylindrical grinding head 12 to rotate controls the number of turns of the rotating shaft Ⅱ9 each time, that is, the displacement sensor 13 connected to the rotating shaft Ⅱ9 is used to control the position of the electrode sheet 2 to be scraped. When the displacement sensor 13 detects the position where the electrode sheet 2 needs to be scraped, it will send a signal to the controller 17, and the controller 17 controls the telescopic cylinder 18 on the "X"-shaped bracket 8 to work, and controls the motor 5 connected to the feed roller Ⅰ7a, the feed roller Ⅱ7b and the feed roller Ⅲ7c to stop. The telescopic cylinder 18 causes the telescopic rod 11 to extend downward, thereby driving the rotating shaft II 9 to move downward, so that the cylindrical grinding head 12 contacts the electrode sheet 2, and the coating on the surface of the electrode sheet 2 is scraped white. The grinding depth of the cylindrical grinding head 12 is controlled by controlling the telescopic length of the telescopic cylinder 18. At the same time, when the cylindrical grinding head 12 contacts the bottom electrode sheet 2 material, the bottom of the support plate 10 just contacts the workbench 1. In this way, it is possible to further prevent the cylindrical grinding head 12 from grinding too deep and damaging the bottom material of the electrode sheet 2. When the cylindrical grinding head 12 completes the scraping of the electrode sheet 2, the telescopic cylinder 18 is controlled to retract the telescopic rod 11, so that the cylindrical grinding head 12 is lifted up, and at the same time, the motors 5 of the feed rollers I7a, II7b and III7c are started again.

[0024] The electrode sheet 2 after scraping is transported to the right under the driving action of the feed roller. The electrode sheet 2 first passes through the feed roller II7b, then passes through the bottom of the cutter 15, and finally passes through the feed roller III7c. When the displacement sensor 13 connected to the feed roller III7c detects that the transmission length of the electrode sheet 2 reaches the required length, the displacement sensor 13 connected to the feed roller III7c sends a signal to the controller 17, and the controller 17 controls the motor 5 of the feed roller to stop, and at the same time controls the telescopic cylinder 18 at the upper end of the gantry bracket 14 to move the cutter 15 downward, and the cutter 15 cuts the electrode sheet 2 after contacting the electrode sheet 2.

[0025] The above steps are then repeated continuously to cut the large electrode sheet 2 into two electrode sheets of small width by means of a circular saw blade 6, and then the cylindrical grinding head 12 is used to grind and scrape the positions of the electrode sheet 2 that need to be scraped white, and finally the cutter 15 is used to cut the two electrode sheets of small width into fixed lengths.

[0026] The above embodiments are only illustrative implementation methods of the present invention. For those skilled in the art, it is easy to make various types of improvements or modifications based on the application methods and principles disclosed in the present invention, and are not limited to the structures or methods described in the above specific implementation methods of the present invention. Therefore, the method described above is only a preferred solution and does not have a restrictive meaning. All equivalent changes and modifications made according to the present invention are within the scope of protection of the claims of the present invention.

Claims

1. A lithium-ion battery multi-electrode synchronous cutting and scraping machine, comprising a workbench (1), an electrode sheet (2) sliding on the upper end of the workbench (1), characterized in that: A set of vertical plates are provided at one end of the workbench (1), and the vertical plates are rotatably connected to a rotating shaft I (4), and the rotating shaft I (4) is provided with a plurality of circular saw blades (6), and one end of the rotating shaft I (4) is driven by a motor, and the motor is fixed to the vertical plate. The workbench (1) is provided with a through slot I (101) on the right side of the circular saw blade (6), and the workbench (1) is rotatably connected to a feed roller I (7a) at both the upper and lower ends of the through slot I (101) through the vertical plates, and the feed roller I (7a) is driven by the motor, and the right side of the feed roller I (7a) is provided with A group of "X"-shaped brackets (8), each of the upper ends of the "X"-shaped brackets (8) is provided with a telescopic cylinder, the bottom of the telescopic cylinder is connected to a telescopic rod, the bottom of the telescopic rod is connected to a support plate (10), a rotating shaft II (9) is rotatably connected between the front and rear support plates (10), the rotating shaft II (9) is provided with a plurality of groups of cylindrical grinding heads (12), one end of the rotating shaft II (9) is driven by a motor, the other end of the rotating shaft II (9) is rotatably connected to a displacement sensor, the workbench (1) is provided with a through slot II (102) on the right side of the rotating shaft II (9), the through slot II (102) is provided on the right side of the rotating shaft II (9), and the through slot II (102) is provided on the right side of the rotating shaft II (9). The upper and lower ends of the groove II (102) are rotatably connected to a feed roller II (7b) via a vertical plate, the feed roller II (7b) is driven by a motor, a gantry bracket (14) is provided at the right end of the feed roller II (7b), a plurality of telescopic cylinders are provided at the upper end of the gantry bracket (14), a telescopic rod is connected to the bottom of the telescopic cylinder, the telescopic rod is connected to a connecting plate (16), a cutter (15) is commonly connected to the bottom of the connecting plate (16), a through groove III (103) is provided on the right side of the cutter (15), and the workbench (1) is arranged in the through groove III ( The upper and lower ends of the workbench (103) are also rotatably connected to a feed roller III (7c) through a vertical plate. One end of the feed roller III (7c) is driven by a motor, and the other end of the feed roller III (7c) is also rotatably connected to a displacement sensor. The workbench (1) is fixed with a controller (17). The motor, the telescopic cylinder and the displacement sensor are all electrically connected to the controller (17). The feed roller I (7a), the feed roller II (7b) and the feed roller III (7c) are rubber feed rollers, and the cylindrical grinding head (12) is a white corundum grinding wheel grinding head.

2. A lithium-ion battery multi-electrode synchronous cutting and scraping machine according to claim 1, characterized in that: The cutter (15) and the connecting plate (16), as well as the connecting plate (16) and the telescopic rod are fixed by bolts.

Images