Cutting device for lithium ion battery production

Abstract

The utility model relates to the technical field of lithium ion battery pole piece cutting, and discloses a piece cutting device for lithium ion battery production, which comprises an operation table, a U-shaped support is fixedly connected to the top surface of the operation table, a cutting device is arranged above the operation table, and the cutting device comprises a cutting part. According to the piece cutting device for lithium ion battery production, by arranging a motor, a belt wheel, a gear, a first rotating shaft, a conveying roller, limiting plates and a material guide plate, electrode pieces are straightened and positioned through the guide roller, the motor is started, the belt wheel and the gear are utilized, the motor drives the first rotating shaft and the guide roller to rotate, the electrode pieces are guided, and the cutting efficiency of the device is improved; the rear end of the electrode slice is prevented from tilting during cutting to affect the cutting precision; the mounting plate, the sliding rod, the screw rod and the laser cutting assembly are arranged, the laser cutting assembly is used for cutting the electrode slice, the mounting plate is controlled to move up and down by rotating the screw rod, and the distance between the laser cutting assembly and the electrode slice is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion battery pole piece cutting, in particular to a piece cutting device for lithium ion battery production. Background Art

[0002] During the manufacturing process of lithium batteries, the electrodes need to be cut and then stacked.

[0003] A Chinese patent discloses a lithium battery pole piece cutting device with a publication number of CN213437877U, comprising a base, a U-shaped fixing frame fixedly provided in the middle of both sides of the base, fixing components are provided on both sides of both sides of the base respectively through four damping shafts, the fixing components include four fixing blocks, two fixing rods, a plurality of supporting blocks and a plurality of T-shaped pull rods, the four fixing blocks are rotatably arranged on both sides of both sides of the base respectively through four damping shafts, the two fixing rods are movably interspersed on the top of the fixing blocks on the same side, cavities are provided in the middle of both sides of the four fixing blocks, and springs are fixedly provided inside the plurality of cavities. The beneficial effect of the utility model is that the two fixing rods are moved downward to contact the pole piece and the diaphragm to be cut by cooperating with the supporting blocks, springs and T-shaped pull rods provided in the fixing components, and the supporting blocks are reset to be fixed, so as to avoid displacement and damage to the pole piece, thereby reducing the manufacturing cost.

[0004] However, it still has the following disadvantages: the device uses a fixed rod to squeeze and position the pole piece, but when cutting, it is necessary to constantly press the T-shaped pull rod, constantly control the fixed rod to move up and down, and then push the pole piece backward, which greatly affects the cutting efficiency. To this end, we proposed a cutting device for lithium-ion battery production to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a cutting device for lithium-ion battery production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a cutting device for lithium-ion battery production, comprising an operating table, a U-shaped bracket is fixedly connected to the top surface of the operating table, a cutting device is arranged above the operating table, and the cutting device comprises a cutting part;

[0007] The cutting part includes a mounting plate, a sliding rod, and a laser cutting assembly. The bottom surface of the sliding rod is fixedly connected to the top surface of the mounting plate. The top outer surface of the sliding rod slides through the inner wall of the U-shaped bracket and extends above the U-shaped bracket. The top surface of the laser cutting assembly is fixedly connected to the bottom surface of the mounting plate.

[0008] A conveying part is arranged above the operating table;

[0009] The conveying part includes a motor, a second rotating shaft, a guide roller, a first rotating shaft and a transmission roller. The bottom surface of the motor is fixedly connected to the top surface of the U-shaped bracket, the guide roller is fixedly sleeved on the outer surface of the second rotating shaft, and the transmission roller is fixedly sleeved on the outer surface of the first rotating shaft.

[0010] A further improvement is that the cutting part also includes a screw, a collecting shell, a filter and an air pump. The bottom surface of the screw is rotatably connected to the top surface of the mounting plate through a first bearing seat. The outer surface thread of the top end of the screw penetrates the inner wall of the U-shaped bracket and extends to the top of the U-shaped bracket. By arranging a screw and a sliding rod, the screw is rotated to control the height of the mounting plate and the laser cutting assembly, thereby facilitating the cutting of electrode sheets of different materials.

[0011] A further improvement is that a through hole is provided on the top surface of the operating table, the top surface of the collecting shell is open, the top surface of the collecting shell is fixedly connected to the inner wall of the operating table, and the collecting shell is used to collect the cutting debris.

[0012] A further improvement is that the outer surface of the filter is fixedly connected to the inner wall of the collecting shell, the top surface of the air pump is fixedly connected to the bottom surface of the collecting shell, and the bottom surface of the air pump inlet pipe is fixedly connected to the bottom surface of the collecting shell. By arranging the air pump and the filter, the air pump is started to form a negative pressure inside the collecting shell, which facilitates the suction of cutting debris into the collection shell.

[0013] A further improvement is that the conveying part also includes a guide plate, a pulley, a gear, and a limit plate. The outer surface of the right end of the first rotating shaft rotates through the bearing to penetrate the inner wall of the U-shaped bracket and extend to the right side of the U-shaped bracket. The gear is fixedly sleeved on the outer surface of the first rotating shaft, and the two outer surfaces of the gears are meshed and connected to each other. The left and right end surfaces of the second rotating shaft are rotatably connected to the inner wall of the U-shaped bracket through the second bearing seat. By setting a motor, gears, a first rotating shaft and a conveying roller, the electrode sheets are collected by the conveying roller.

[0014] A further improvement is that the two pulleys are respectively fixedly mounted on the outer surface of the upper first rotating shaft and the outer surface of the motor output shaft, and the two pulley outer surfaces are connected by belt transmission. By setting the pulleys, the motor drives the first rotating shaft to rotate.

[0015] A further improvement is that the left and right end faces of the two limit plates are fixedly connected to the inner wall of the U-shaped bracket, a through hole is opened on the top surface of the upper limit plate, and the bottom surface of the guide plate is fixedly connected to the top surface of the operating table. By setting the guide plate, when the electrode sheet slides along the top surface of the guide plate, it is convenient for impurities to fall into the collection shell.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the sheet cutting device for lithium-ion battery production, by arranging a motor, a pulley, a gear, a first rotating shaft, a conveying roller, a limiting plate, a second rotating shaft, a guide roller and a material guide plate, uses the guide roller to straighten and position the electrode sheet, starts the motor, uses the pulley and the gear to make the motor drive the first rotating shaft and the guide roller to rotate, guides the electrode sheet, improves the cutting efficiency of the device, uses two limiting plates to prevent the rear end of the electrode sheet from tilting during cutting, thereby affecting the cutting accuracy; by arranging a mounting plate, a sliding rod, a screw and a laser cutting assembly, uses the laser cutting assembly to cut the electrode sheet, controls the mounting plate to move up and down by rotating the screw, and adjusts the distance between the laser cutting assembly and the electrode sheet; by arranging a collecting shell, a filter screen and an air pump, uses the collecting shell to collect the cut chips, starts the air pump to generate negative pressure inside the collecting shell, so that when the electrode sheet passes over the material guide plate, the cut chips are sucked into the collecting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the structure at center;

[0019] Figure 3 This is a front cross-sectional view of the three-dimensional structure of the utility model;

[0020] Figure 4 It is a right side cross-sectional view of the three-dimensional structure of the utility model;

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point B in the middle.

[0022] In the figure: 1 operating table, 2 cutting device, 21 conveying part, 22 cutting part, 211 motor, 212 pulley, 213 gear, 214 first rotating shaft, 215 conveying roller, 216 limit plate, 217 second rotating shaft, 218 guide roller, 219 material guide plate, 221 mounting plate, 222 sliding rod, 223 screw, 225 laser cutting assembly, 226 collecting shell, 227 filter screen, 228 air pump, 3 U-shaped bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5The utility model provides a technical solution: a cutting device for lithium-ion battery production, comprising an operating table 1, a U-shaped bracket 3 is fixedly connected to the top surface of the operating table 1, a cutting device 2 is arranged above the operating table 1, and the cutting device 2 includes a cutting part 22;

[0025] The cutting part 22 includes a mounting plate 221, a slide bar 222, and a laser cutting assembly 225. The bottom surface of the slide bar 222 is fixedly connected to the top surface of the mounting plate 221. The top outer surface of the slide bar 222 slides through the inner wall of the U-shaped bracket 3 and extends to the top of the U-shaped bracket 3. The top surface of the laser cutting assembly 225 is fixedly connected to the bottom surface of the mounting plate 221. The cutting part 22 also includes a screw 223, a collecting shell 226, a filter screen 227 and an air pump 228. The bottom surface of the screw 223 is rotatably connected to the top surface of the mounting plate 221 through a first bearing seat. The top outer surface of the screw 223 threadably penetrates the inner wall of the U-shaped bracket 3 and extends to the top of the U-shaped bracket 3. By setting the mounting plate 221, the slide bar 222, the screw 223 and the laser cutting assembly 225, the electrode sheet is cut by the laser cutting assembly 225. By rotating the screw 223, the mounting plate 221 is controlled to move up and down, and the distance between the laser cutting assembly 225 and the electrode sheet is adjusted.

[0026] A through hole is provided on the top surface of the operating table 1, and the top surface of the collecting shell 226 is open, and the top surface of the collecting shell 226 is fixedly connected to the inner wall of the operating table 1;

[0027] The outer surface of the filter screen 227 is fixedly connected to the inner wall of the collection shell 226, the top surface of the air pump 228 is fixedly connected to the bottom surface of the collection shell 226, and the bottom surface of the air inlet pipe of the air pump 228 is fixedly connected to the bottom surface of the collection shell 226. By setting the collection shell 226, the filter screen 227 and the air pump 228, the collection shell 226 is used to collect the cut pieces. The air pump 228 is started to generate negative pressure inside the collection shell 226, so that when the electrode sheet passes over the guide plate 219, the cut pieces are sucked into the collection shell 226.

[0028] A conveying portion 21 is provided above the operating table 1;

[0029] The conveying part 21 includes a motor 211, a second rotating shaft 217, a guide roller 218, a first rotating shaft 214 and a transmission roller 215. The bottom surface of the motor 211 is fixedly connected to the top surface of the U-shaped bracket 3, the guide roller 218 is fixedly sleeved on the outer surface of the second rotating shaft 217, and the transmission roller 215 is fixedly sleeved on the outer surface of the first rotating shaft 214;

[0030] The conveying part 21 also includes a guide plate 219, a pulley 212, a gear 213, and a limit plate 216. The outer surface of the right end of the first rotating shaft 214 rotates through the inner wall of the U-shaped bracket 3 and extends to the right side of the U-shaped bracket 3 through the bearing. The gear 213 is fixedly sleeved on the outer surface of the first rotating shaft 214. The outer surfaces of the two gears 213 are meshed and connected with each other. The left and right end surfaces of the second rotating shaft 217 are both rotatably connected to the inner wall of the U-shaped bracket 3 through the second bearing seat;

[0031] The two pulleys 212 are respectively fixedly mounted on the outer surface of the upper first rotating shaft 214 and the outer surface of the output shaft of the motor 211, and the outer surfaces of the two pulleys 212 are connected by belt transmission;

[0032] The left and right end surfaces of the two limit plates 216 are fixedly connected to the inner wall of the U-shaped bracket 3, a through hole is opened on the top surface of the upper limit plate 216, and the bottom surface of the guide plate 219 is fixedly connected to the top surface of the operating table 1. By arranging the motor 211, the pulley 212, the gear 213, the first rotating shaft 214, the conveying roller 215, the limit plate 216, the second rotating shaft 217, the guide roller 218 and the guide plate 219, the guide roller 218 is used to straighten and position the electrode sheet, and the motor 211 is started. The pulley 212 and the gear 213 are used to make the motor 211 drive the first rotating shaft 214 and the guide roller 218 to rotate, and the electrode sheet is guided to improve the cutting efficiency of the device. The two limit plates 216 are used to prevent the rear end of the electrode sheet from tilting when cutting, which affects the cutting accuracy.

[0033] When in use, start the motor 211, the output shaft of the motor 211 drives the upper pulley 212 to rotate, the upper pulley 212 drives the lower pulley 212 to rotate, the lower pulley 212 drives the upper first rotating shaft 214 to rotate, and the two gears 213 are used. The upper first rotating shaft 214 drives the lower first rotating shaft 214 to rotate, and the first rotating shaft 214 drives the conveying roller 215 to rotate, and transports the electrode sheet backward. Start the laser cutting assembly 225 to cut the electrode sheet horizontally, and the electrode sheet slides along the top surface of the guide plate 219. Start the air pump 28 to generate negative pressure inside the collection shell 226, and the cutting debris passes through the guide plate 219 and falls into the collection shell 226.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for lithium-ion battery production, comprising an operating table (1), characterized in that: A U-shaped bracket (3) is fixedly connected to the top surface of the operating table (1); a cutting device (2) is arranged above the operating table (1); the cutting device (2) comprises a cutting portion (22); The cutting part (22) comprises a mounting plate (221), a sliding rod (222), and a laser cutting assembly (225); the bottom surface of the sliding rod (222) is fixedly connected to the top surface of the mounting plate (221); the top outer surface of the sliding rod (222) slides through the inner wall of the U-shaped bracket (3) and extends to the top of the U-shaped bracket (3); the top surface of the laser cutting assembly (225) is fixedly connected to the bottom surface of the mounting plate (221); A conveying portion (21) is provided above the operating table (1); The conveying part (21) comprises a motor (211), a second rotating shaft (217), a guide roller (218), a first rotating shaft (214) and a transmission roller (215); the bottom surface of the motor (211) is fixedly connected to the top surface of the U-shaped bracket (3); the guide roller (218) is fixedly sleeved on the outer surface of the second rotating shaft (217); and the transmission roller (215) is fixedly sleeved on the outer surface of the first rotating shaft (214).

2. A cutting device for lithium-ion battery production according to claim 1, characterized in that: The cutting portion (22) further comprises a screw (223), a collecting shell (226), a filter screen (227) and an air pump (228); the bottom surface of the screw (223) is rotatably connected to the top surface of the mounting plate (221) via a first bearing seat; the top outer surface of the screw (223) is threadedly penetrates the inner wall of the U-shaped bracket (3) and extends to the top of the U-shaped bracket (3).

3. A cutting device for lithium-ion battery production according to claim 2, characterized in that: The top surface of the operating table (1) is provided with a through hole, the top surface of the collection shell (226) is open, and the top surface of the collection shell (226) is fixedly connected to the inner wall of the operating table (1).

4. A cutting device for lithium-ion battery production according to claim 2, characterized in that: The outer surface of the filter (227) is fixedly connected to the inner wall of the collection shell (226), the top surface of the air pump (228) is fixedly connected to the bottom surface of the collection shell (226), and the bottom surface of the air inlet pipe of the air pump (228) is fixedly connected to the bottom surface of the collection shell (226).

5. The cutting device for lithium-ion battery production according to claim 1, characterized in that: The conveying part (21) further comprises a guide plate (219), a pulley (212), a gear (213), and a limit plate (216). The outer surface of the right end of the first rotating shaft (214) rotates through the inner wall of the U-shaped bracket (3) through a bearing and extends to the right side of the U-shaped bracket (3). The gear (213) is fixedly sleeved on the outer surface of the first rotating shaft (214). The outer surfaces of the two gears (213) are meshed and connected with each other. The left and right end surfaces of the second rotating shaft (217) are both rotatably connected to the inner wall of the U-shaped bracket (3) through a second bearing seat.

6. A cutting device for lithium-ion battery production according to claim 5, characterized in that: The two pulleys (212) are respectively fixedly sleeved on the outer surface of the upper first rotating shaft (214) and the outer surface of the output shaft of the motor (211), and the outer surfaces of the two pulleys (212) are connected via belt transmission.

7. A cutting device for lithium-ion battery production according to claim 5, characterized in that: The left and right end surfaces of the two limit plates (216) are fixedly connected to the inner wall of the U-shaped bracket (3), a through hole is provided on the top surface of the upper limit plate (216), and the bottom surface of the guide plate (219) is fixedly connected to the top surface of the operating table (1).

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