Burr-free pole piece processing equipment

Abstract

The utility model provides burr-free pole piece processing equipment, and relates to the technical field of battery pole piece processing. The utility model is used for solving the technical problem that new burrs are easily generated on the pole piece when friction and collision are generated in the follow-up carrying process of the pole piece in the existing processing method for the burrs of the pole piece. The burr-free pole piece processing equipment comprises a base, a first support is installed on the base, two extrusion barrels are rotationally arranged on the first support, a powder feeding box is installed on the base, a discharging opening is formed in the powder feeding box, and a re-pressing assembly used for re-pressing a pole piece to be processed is arranged on the base. A to-be-processed pole piece is arranged among the two extrusion barrels, the powdering box and the re-pressing assembly in a penetrating manner. The adhesive tapes on the two sides are attached to the edges of the two sides of the to-be-processed pole piece, the adhesive tapes are pulled when the to-be-processed pole piece is conveyed, the extrusion wheels press and attach the adhesive tapes to the edges of the two sides of the to-be-processed pole piece so as to isolate and wrap the burrs of the pole piece, and the effect of isolating the burrs of the pole piece is achieved.

Description

Technical Field

[0001] The utility model provides a non-flashing pole piece processing device, which relates to the technical field of battery pole piece processing. Background Art

[0002] Some existing batteries, such as nickel-hydrogen batteries, are composed of positive and negative electrodes, electrolytes, separators and shells. During the preparation process of some of the electrodes, the powder of the electrode is fixed on the substrate by brushing and rolling. After the powder is applied to the substrate, the two sides of the substrate will be exposed due to the falling of the powder, and the exposed substrate itself will have burrs, which is called "burring".

[0003] The flash will pierce the separator between the positive and negative electrodes, causing the positive and negative electrodes to contact each other, resulting in a short circuit or micro short circuit in the battery, which can cause heat, fire, or explosion during use, seriously affecting the performance of the entire battery, destroying it, or making it unusable. The current solution is to cut and grind both sides of the electrode after production. However, after cutting and grinding, since the electrode material is not hard enough, new flash will still be generated due to the sharpness of the cutter or friction or collision during the process of carrying, placing, and winding the electrode.

[0004] Therefore, it is necessary to provide a non-flashing pole piece processing equipment that can isolate the pole piece flaring. Utility Model Content

[0005] In order to overcome the disadvantage that the existing method for processing the electrode flash is still easy to cause new flash on the electrode when friction and collision occur in the subsequent transportation process of the electrode, the utility model provides a flash-free electrode processing equipment that can isolate the electrode flash.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions: a kind of non-flashing electrode processing equipment, including a base, a first bracket, an extrusion cylinder, a powder box and a re-pressing assembly, the first bracket is installed on the base, two extrusion cylinders are rotatably arranged on the first bracket, an upper powder box is installed on the base, a discharge port is opened on the upper powder box, and a re-pressing assembly for re-pressing the electrode to be processed is arranged on the base, and the electrode to be processed is commonly penetrated between the two extrusion cylinders, the upper powder box and the re-pressing assembly, and also includes columns, rubber discs, tapes, guide wheels and extrusion wheels, two columns are installed on the base, a rubber disc is rotatably arranged on the columns, a tape is wound on the rubber disc, guide wheels are fixedly connected to both sides of the base, and multiple extrusion wheels are fixedly connected to both sides of the base, and the tapes are pulled to the extrusion wheels through the guide wheels.

[0007] In one embodiment, the re-pressing assembly includes a second bracket mounted on a base, a roller is rotatably provided on the second bracket, a guide rod is fixedly connected to one side of the second bracket, a connecting frame is slidably provided on the guide rod, a screw is rotatably provided on the other side of the second bracket, the connecting frame is threadedly connected to the screw, another roller is rotatably provided on the connecting frame, a motor is mounted on the second bracket, and the output shaft of the motor is fixedly connected to the roller on the second bracket.

[0008] In one embodiment, the electrode piece to be processed is formed by stacking a positive electrode, a separator and a negative electrode in sequence.

[0009] In one of the embodiments, the upper cover of the upper powder box is provided with a box cover.

[0010] In one of the embodiments, the base further comprises two L-shaped fixing plates installed on both sides of the base, a pressure bracket is slidably arranged on the two L-shaped fixing plates, and an elastic member is wound around the sliding rod of the pressure bracket.

[0011] In one of the embodiments, it also includes a mounting frame mounted on the connecting frame, a scraper plate is mounted on the mounting frame, one end of the scraper plate is in contact with the roller on the connecting frame, a return port is provided on the upper powder box, and the other end of the scraper plate leads to the return port.

[0012] In one of the embodiments, the scraper plate is inclined downward toward a side close to the upper powder box.

[0013] In one of the embodiments, it further comprises a third bracket mounted on the base, a connecting column is fixedly connected to the third bracket, and a guillotine is rotatably arranged on the connecting column.

[0014] In one of the embodiments, a barrier net is installed at the return port.

[0015] Compared with the prior art, the pole piece processing equipment provided by the embodiment of the utility model has the following advantages: 1. By sticking the tapes on both sides to the edges of the pole piece to be processed, the tape is pulled when the pole piece to be processed is transmitted, so that the extrusion wheel presses the tape to stick to the edges of the pole piece to be processed to isolate and cover the pole piece batch front, thereby achieving the effect of isolating the pole piece batch front.

[0016] 2. Use the elastic part to push the pressure bracket to slide downward along the two L-shaped fixing plates, so that the pressure bracket can press the positive electrode, diaphragm and negative electrode of the electrode to be processed tightly, so as to achieve the effect of pressing the electrode to be processed, so as to facilitate subsequent processing.

[0017] 3. Through the rotation of the roller, the powder on the roller is scraped off by the scraper plate, and the scraped powder slides to the upper powder box through the scraper plate, and the powder enters the upper powder box through the return port, so as to achieve the effect of powder recovery.

[0018] 4. The guillotine is rotated along the connecting column so that the guillotine cuts the electrode to be processed into segments, thereby achieving the effect of cutting the electrode to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the positive electrode, the separator and the negative electrode of the utility model.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the adhesive disc, adhesive tape and extrusion wheel of the utility model.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the roller, screw and connecting frame of the utility model.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the powder box, roller and elastic member of the utility model.

[0024] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the powder upper box and the barrier net of the utility model.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the L-shaped fixing plate, pressure bracket and elastic member of the utility model.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the connecting frame, the scraper plate and the mounting frame of the utility model.

[0027] Fig. 9 It is a three-dimensional structural schematic diagram of the third bracket, the connecting column and the guillotine of the utility model.

[0028] Markings in the figure are: 1-base, 101-electrode piece to be processed, 102-positive electrode, 103-diaphragm, 104-negative electrode, 2-column, 3-rubber disc, 301-tape, 4-guide wheel, 5-extrusion wheel, 6-first bracket, 7-extrusion cylinder, 8-powder box, 801-discharge port, 9-box cover, 10-second bracket, 11-roller, 1101-motor, 12-screw, 13-guide rod, 1301-connecting frame, 14-L-shaped fixing plate, 15-pressure bracket, 16-elastic part, 17-scraper plate, 1701-mounting frame, 1702-return port, 18-third bracket, 19-connecting column, 20-guillotine, 21-barrier net. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the protection scope and application scope of the present invention are not limited.

[0030] Embodiment 1: A non-flashing pole piece processing device, see Figure 1-Figure 4 As shown, it includes a base 1, a first bracket 6, an extrusion cylinder 7, an upper powder box 8 and a re-pressing assembly. The first bracket 6 is installed on the base 1 by bolt connection. The first bracket 6 is rotatably provided with an upper and lower extrusion cylinders 7. The upper powder box 8 for adding powder is installed on the base 1 by bolt connection. The top cover of the upper powder box 8 is provided with a box cover 9. The box cover 9 can prevent foreign matter from falling into the upper powder box 8. When adding powder to the upper powder box 8, the box cover 9 can be removed. The upper powder box 8 is provided with a discharge port 801. The base 1 is located on the side of the upper powder box 8 away from the first bracket 6. A re-pressing assembly for re-pressing the electrode 101 to be processed is provided. The two extrusion cylinders 7, the upper powder box 8 and the re-pressing assembly A pole piece 101 to be processed is commonly penetrated between the pole pieces 101 to be processed, which is formed by stacking a positive pole 102, a diaphragm 103 and a negative pole 104 in sequence, and also includes a column 2, a rubber disc 3, a tape 301, a guide wheel 4 and an extrusion wheel 5. Two poles 2 are installed on the base 1 by welding, and a rubber disc 3 is rotatably arranged on the column 2. The rubber disc 3 is wound with a tape 301 for isolating the pole piece batch front. Guide wheels 4 for pulling the tape 301 are fixedly connected on both sides of the pole piece 101 to be processed on the base 1. Three extrusion wheels 5 for sticking the tape 301 on the pole piece 101 to be processed are fixedly connected on both sides of the base 1, and the tape 301 is pulled onto the extrusion wheel 5 through the guide wheel 4.

[0031] See also Figure 3 and Figure 4 As shown, the re-pressing assembly includes a second bracket 10 installed on the base 1 by bolt connection, a roller 11 is rotatably provided on the second bracket 10, a guide rod 13 is fixedly connected to one side of the second bracket 10 by welding, a connecting frame 1301 is slidably provided on the guide rod 13, the connecting frame 1301 slides up and down along the guide rod 13, a screw rod 12 is rotatably provided on the other side of the second bracket 10, the connecting frame 1301 is threadedly connected to the screw rod 12, another roller 11 is rotatably provided on the connecting frame 1301, a motor 1101 is installed on the side of the second bracket 10 by bolt connection, and the output shaft of the motor 1101 is fixedly connected to the roller 11 on the second bracket 10.

[0032] When the electrode is being processed, the electrode 101 to be processed is passed between the two extrusion cylinders 7, and the electrode 101 to be processed is pulled through the upper powder box 8 and the two rollers 11. The corresponding roller 11 is driven to rotate on the second bracket 10 by starting the motor 1101, so that the electrode 101 to be processed is transmitted. At this time, the upper roller 11 rotates on the connecting frame 1301 through the friction force with the electrode 101 to be processed. With the transmission of the electrode 101 to be processed, the two extrusion cylinders 7 will press the positive electrode 102, the diaphragm 103 and the negative electrode 104 together. When the electrode 101 to be processed enters the upper powder box 8, the powder in the upper powder box 8 falls through the discharge port 801. On the electrode 101 to be processed, the powder is fixed on the electrode 101 to be processed by squeezing two rollers 11; when it is necessary to adjust the force of compacting the powder or adjust the distance between the two rollers 11 according to the thickness of the electrode 101 to be processed, the screw 12 is rotated to make the connecting frame 1301 drive the roller 11 to slide along the guide rod 13, so as to adjust the distance between the two rollers 11; when the electrode 101 to be processed is being transmitted, the tape 301 on both sides is pulled to cover the edges of both sides of the electrode 101 to be processed, and when the electrode 101 to be processed moves, the extrusion wheel 5 rotates and presses the tape 301 to the edges of both sides of the electrode 101 to be processed, and the electrode batch is isolated and covered by the tape 301.

[0033] Example 2: Based on Example 1, refer to Figure 5 and Figure 7 As shown, it also includes two L-shaped fixing plates 14 installed on both sides of the middle part of the base 1 by bolt connection, and a pressure bracket 15 for pressing the electrode piece 101 to be processed is slidably arranged on the two L-shaped fixing plates 14. An elastic member 16 is wound around the sliding rod of the pressure bracket 15. The number of the elastic members 16 is four, and the elastic member 16 is used to push the pressure bracket 15 to slide downward along the L-shaped fixing plate 14.

[0034] When the electrode piece 101 to be processed is ready for processing, the electrode piece 101 to be processed is passed through the pressure support 15 and the base 1. When the electrode piece 101 to be processed is transmitted, the elastic member 16 pushes the pressure support 15 to slide downward along the two L-shaped fixing plates 14, so that the pressure support 15 presses the positive electrode 102, the diaphragm 103 and the negative electrode 104 of the electrode piece 101 to be processed tightly to facilitate subsequent processing.

[0035] See also Figure 6 and Figure 8As shown, it also includes a mounting frame 1701 installed on the top of the connecting frame 1301 by bolt connection, and a scraper plate 17 is installed on the mounting frame 1701 by bolt connection. One end of the scraper plate 17 is in contact with the roller 11 on the connecting frame 1301, and a return port 1702 is provided on the upper powder box 8. The other end of the scraper plate 17 guides the return port 1702. The scraper plate 17 is tilted downward toward the side close to the upper powder box 8 to facilitate the powder to automatically slide into the upper powder box 8.

[0036] When the upper powder box 8 adds powder to the electrode 101 to be processed, the powder is compacted by the roller 11 on the connecting frame 1301. The roller 11 is easily contaminated with powder. As the roller 11 rotates, the powder on the roller 11 is scraped off by the scraper plate 17, and the scraped powder slides to the upper powder box 8 through the scraper plate 17. The powder is recovered into the upper powder box 8 through the return port 1702.

[0037] See also Figure 8 and Fig. 9 As shown, it also includes a third bracket 18 installed on the base 1 by bolt connection. The third bracket 18 is located on the side of the second bracket 10 away from the upper powder box 8. A connecting column 19 is fixedly connected to the third bracket 18 by welding. A guillotine 20 for cutting the electrode 101 to be processed is rotatably provided on the connecting column 19.

[0038] After the electrode piece 101 to be processed passes through between the two rollers 11, the guillotine 20 can be rotated along the connecting column 19 according to the length requirement, so that the guillotine 20 cuts the electrode piece 101 to be processed into segments to make batteries of different sizes.

[0039] See also Figure 6 As shown, a barrier net 21 is installed at the return port 1702 by bolt connection. The barrier net 21 can block foreign matter other than powder from entering the upper powder box 8, thereby preventing foreign matter from mixing with powder and being added into the battery.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A non-flashing electrode processing device, comprising a base (1), a first bracket (6), an extrusion cylinder (7), an upper powder box (8) and a re-pressing assembly, wherein the first bracket (6) is mounted on the base (1), two extrusion cylinders (7) are rotatably arranged on the first bracket (6), an upper powder box (8) is mounted on the base (1), a discharge port (801) is provided on the upper powder box (8), a re-pressing assembly for re-pressing the electrode (101) to be processed is arranged on the base (1), and the electrode (101) to be processed is commonly penetrated between the two extrusion cylinders (7), the upper powder box (8) and the re-pressing assembly, characterized in that: The invention also comprises a column (2), a rubber disc (3), an adhesive tape (301), a guide wheel (4) and an extrusion wheel (5); two columns (2) are mounted on the base (1); a rubber disc (3) is rotatably arranged on the column (2); an adhesive tape (301) is wound around the rubber disc (3); guide wheels (4) are fixedly connected to both sides of the base (1); a plurality of extrusion wheels (5) are fixedly connected to both sides of the base (1); and the adhesive tape (301) is pulled onto the extrusion wheel (5) through the guide wheels (4).

2. The flash-free pole piece processing equipment according to claim 1, characterized in that: The re-pressing assembly comprises a second bracket (10) mounted on a base (1), a roller (11) being rotatably mounted on the second bracket (10), a guide rod (13) being fixedly connected to one side of the second bracket (10), a connecting frame (1301) being slidably mounted on the guide rod (13), a screw rod (12) being rotatably mounted on the other side of the second bracket (10), the connecting frame (1301) being threadedly connected to the screw rod (12), another roller (11) being rotatably mounted on the connecting frame (1301), a motor (1101) being mounted on the second bracket (10), and an output shaft of the motor (1101) being fixedly connected to the roller (11) on the second bracket (10).

3. The flash-free pole piece processing equipment according to claim 1, characterized in that: The electrode piece (101) to be processed is formed by stacking a positive electrode (102), a separator (103) and a negative electrode (104) in sequence.

4. The flash-free pole piece processing equipment according to claim 1, characterized in that: The upper cover of the upper powder box (8) is provided with a box cover (9).

5. The flash-free pole piece processing equipment according to claim 1, characterized in that: It also includes two L-shaped fixing plates (14) installed on both sides of the base (1), and a pressure bracket (15) is slidably arranged on the two L-shaped fixing plates (14), and an elastic member (16) is wound around the sliding rod of the pressure bracket (15).

6. The flash-free pole piece processing equipment according to claim 2, characterized in that: It also includes a mounting frame (1701) mounted on the connecting frame (1301), a scraper plate (17) is mounted on the mounting frame (1701), one end of the scraper plate (17) is in contact with the roller (11) on the connecting frame (1301), a return port (1702) is provided on the upper powder box (8), and the other end of the scraper plate (17) leads to the return port (1702).

7. The flash-free pole piece processing equipment according to claim 6, characterized in that: The scraper plate (17) is inclined downward toward the side close to the upper powder box (8).

8. The flash-free pole piece processing equipment according to claim 1, characterized in that: It also comprises a third bracket (18) mounted on the base (1), a connecting column (19) being fixedly connected to the third bracket (18), and a guillotine (20) being rotatably arranged on the connecting column (19).

9. The flash-free pole piece processing equipment according to claim 6, characterized in that: A barrier net (21) is installed at the return port (1702).

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