Lithium battery pole piece processing equipment and use method thereof

Abstract

The invention relates to the field of lithium battery accessory processing, and discloses lithium battery pole piece processing equipment which comprises a shell, two inner roll shafts are rotationally connected to the inner side of the shell in a vertically symmetrical mode, the vertical inner roll shafts are connected through nitrile rubber belts, gears are fixedly connected to the front ends of the two inner roll shafts on the upper portion, and the gears are fixedly connected to the rear ends of the two inner roll shafts on the lower portion. The two gears are connected in a meshed mode, large synchronous belt wheels are fixedly connected to the outer sides of the gears, two outer roller shafts are vertically arranged on the sides, away from each other, of the nitrile rubber belt, the vertical outer roller shafts are connected through rubber belts, and wool felt layers are fixedly connected to the outer sides of the rubber belts. And the wool felt layer is in contact with the nitrile rubber belt. The nitrile rubber belt rubs with the synchronously rotating wool felt layer to generate static electricity to adsorb dust of the lithium battery pole piece, the static electricity eliminating rod removes static electricity of the rubber belt to separate the dust, and the dust is sucked into silicone oil in the dust collecting box to be treated in cooperation with the dust collector motor, so that the dust is prevented from drifting away.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery accessory processing, and in particular to lithium battery pole piece processing equipment and a method of using the same. Background Art

[0002] Lithium battery pole pieces are important components of lithium-ion batteries and are divided into positive pole pieces and negative pole pieces. Positive pole pieces are usually made of compounds containing lithium elements, such as lithium cobalt oxide, lithium iron phosphate, etc., which can release electrons and lithium ions. Negative pole pieces are usually made of carbon materials, such as graphite, silicon carbon, etc., which can receive electrons and lithium ions. During the charging and discharging process, lithium ions move between the positive and negative electrodes to complete the charging and discharging process of the battery. The manufacturing process of pole pieces is also a key link in the production of lithium batteries, which directly affects the performance and safety of the battery.

[0003] At present, most of the dust removal of lithium battery pole pieces is done manually, that is, workers use handheld brushes to remove dust from the pole pieces. However, this method has obvious disadvantages. On the one hand, it is difficult to quickly remove dust from the surface of the pole piece, and the work process is time-consuming and laborious; on the other hand, during the dust removal process, the dust generated will float everywhere. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides lithium battery pole piece processing equipment and a method of using the same, which solves the problems of low manual dust removal efficiency and easy dust dispersion.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: lithium battery pole piece processing equipment, including a shell, the inner side of the shell is symmetrically connected to two inner rollers for rotation up and down, the inner rollers are vertically connected by nitrile rubber belts, the front ends of the two upper inner rollers are fixedly connected with gears, the two gears are meshed and connected, the outer sides of the gears are fixedly connected with large synchronous pulleys, two outer rollers are vertically arranged on the opposite sides of the nitrile rubber belt, the outer rollers are vertically connected by rubber belts, the outer sides of the rubber belts are fixedly connected with wool felt layers, and the wool felt layers are in contact with the nitrile rubber belts, the front ends of the two upper outer rollers are fixedly connected with small synchronous pulleys, and the small synchronous pulleys are connected to adjacent large synchronous pulleys through synchronous toothed belts, a servo motor is fixedly connected to the upper rear side of the shell, the output end of the servo motor is fixedly connected to one of the inner rollers at the top, a dust collecting mechanism is arranged at the inner bottom of the shell, and a limiting mechanism is arranged in the middle of the upper and lower ends of the shell.

[0006] Preferably, the dust collecting mechanism includes a dust hood and a dust box, the dust hood is fixedly connected to both sides of the inner bottom end of the shell, and the hood opening of the dust hood is close to the nitrile rubber belt, the dust box is fixedly connected to the rear end of the shell, the top of the dust box is fixedly connected to a vacuum cleaner motor, and the air inlet of the vacuum cleaner motor is connected to the dust box, silicone oil is provided in the dust box, the middle part of the dust hood is fixedly connected to one end of the intake pipe, and the other end of the intake pipe passes through both sides of the dust box and extends into the silicone oil.

[0007] Preferably, the dust collecting mechanism further comprises a static elimination rod, the static elimination rod is fixedly connected in the dust collecting cover, and a plurality of emission needles are evenly arranged on one side of the static elimination rod facing the nitrile rubber belt.

[0008] Preferably, the limiting mechanism includes a limiting frame, which is provided with two limiting frames connected to the top and bottom ends of the shell through two clamping plates, and the front and rear sides of the limiting frame are provided with sliding grooves, and sliding rods are transversely fixedly connected in the sliding grooves, and end blocks are slidably connected to the sliding rods, and springs are sleeved on the opposite sides of the sliding rods on the same side, and the springs are abutted against the corresponding end blocks, and connecting rods are rotatably connected between the front and rear end blocks, and guide rollers are fixedly connected at both ends of the connecting rods.

[0009] Preferably, the outer rollers are rotatably connected to the housing, and the synchronous toothed belts are respectively meshed and connected to the small synchronous pulley and the large synchronous pulley.

[0010] Preferably, a cover shell is provided on the outer side of the small synchronous pulley and the large synchronous pulley, the cover shell is fixedly connected to the shell body, and the front and rear ends of the bottom of both sides of the shell body are fixedly connected with fixed feet.

[0011] Preferably, a liquid level window is provided on the rear side of the dust box, an oil filling port is provided on one side of the top end of the dust box, and an upper cover is threadedly connected to the oil filling port, and a sewage outlet is provided on one side of the bottom end of the dust box, and a lower cover is threadedly connected to the sewage outlet.

[0012] Preferably, a lithium battery pole piece is arranged between the guide rollers, and the lithium battery pole piece passes between the nitrile rubber belts.

[0013] Preferably, a method for using the lithium battery pole piece processing equipment is characterized by comprising the following steps:

[0014] S1. First, inject silicone oil into the dust box, and the amount of oil added should be above the mouth of the suction pipe;

[0015] S2. One end of the uncut lithium battery pole piece is connected between the guide rollers of the upper limiting mechanism, and the lithium battery pole piece is connected between the guide rollers of the lower limiting mechanism through the nitrile rubber belt;

[0016] S3. The servo motor drives the inner roller to rotate, and the inner roller drives the nitrile rubber belt to roll. At the same time, the rubber belt on the outer roller rotates synchronously. The wool felt layer rubs against the nitrile rubber belt to generate static electricity. The continuously rolling nitrile rubber belt absorbs dust on both sides of the lithium battery pole piece.

[0017] S4. Drive the vacuum cleaner motor and static elimination rod to remove static electricity on the nitrile rubber belt. At the same time, the negative pressure sucks the dust into the dust collection box. After the dust removal is completed, open the lower cover to discharge the silicone oil that absorbs the dust.

[0018] Working principle: One end of the lithium battery pole piece is connected from the guide rollers of the upper limiting mechanism, and the lithium battery pole piece passes through the nitrile rubber belt and is connected from the guide rollers of the lower limiting mechanism, so that the lithium battery pole piece is kept in the middle position between the nitrile rubber belts. The servo motor drives the inner roller shaft to rotate, and the two inner roller shafts at the top rotate toward each other through gear meshing, driving the two vertical nitrile rubber belts to roll. The synchronous toothed belt drives the outer roller shaft to rotate through the large synchronous pulley and the small synchronous pulley, and the outer roller shaft drives the rubber belt to roll, and the rubber belt drives the wool felt layer to roll. When the wool felt layer and the nitrile rubber belt rub against each other, due to the wool felt and the nitrile rubber belt Due to the different binding abilities for electrons, electrons will be transferred. The ability of wool felt to bind electrons is weaker than that of nitrile rubber belt. Therefore, during the friction process, some electrons on the wool felt will be transferred to the nitrile rubber belt. The nitrile rubber belt will gain electrons and become negatively charged. When the lithium battery pole pieces pass between the nitrile rubber belts, the nitrile rubber belts will absorb the dust on both sides of the lithium battery pole pieces. After absorbing the dust, the nitrile rubber belts will eliminate static electricity when they roll over the static electricity eliminator. At this time, the dust will detach from the surface of the nitrile rubber belt that has lost its static electricity adsorption force, driving the vacuum cleaner motor. The negative pressure in the dust box will suck the detached dust into the silicone oil in the dust box through the suction pipe and the dust hood.

[0019] The present invention provides a lithium battery pole piece processing device and a method for using the same. The device has the following beneficial effects:

[0020] 1. The present invention rubs the nitrile rubber belt against the synchronously rotating wool felt layer, and utilizes the characteristic that the wool felt layer has a weaker ability to bind electrons than the nitrile rubber belt. During the friction process, some electrons on the wool felt layer will be transferred to the nitrile rubber belt, so that the surface of the nitrile rubber belt will generate static electricity to absorb dust on both sides of the lithium battery electrode, thereby achieving fast and efficient dust removal.

[0021] 2. The present invention removes static electricity on the surface of the nitrile rubber belt through the static electricity elimination rod, and the dust is separated from the nitrile rubber belt with the static electricity adsorption effect removed. At the same time, the dust is sucked into the silicone oil in the dust collection box for centralized treatment in conjunction with the vacuum cleaner motor, thereby avoiding the problem of dust generated in the dust removal process floating around. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 It is a three-dimensional exploded schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the dust collecting mechanism of the present invention;

[0026] Figure 5 It is a partial exploded view of the dust collecting mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the dust collecting hood of the present invention;

[0028] Figure 7 It is a schematic diagram of the limiting mechanism of the present invention.

[0029] Among them, 1. Shell; 2. Servo motor; 3. Limit frame; 4. Lithium battery pole piece; 5. Cover; 6. Intake pipe; 7. Fixed support foot; 8. Wool felt layer; 9. Inner roller; 10. Outer roller; 11. Dust box; 12. Dust cover; 13. Gear; 14. Large synchronous pulley; 15. Small synchronous pulley; 16. Nitrile rubber belt; 17. Rubber belt; 18. Synchronous toothed belt; 19. End block; 20. Vacuum cleaner motor; 21. Liquid level window; 22. Upper cover; 23. Lower cover; 24. Static elimination rod; 25. Emitting needle; 26. Card plate; 27. Connecting rod; 28. Guide roller; 29. ​​Spring; 30. Sliding rod; 31. Slide groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Please see attached Figure 1 -Attached Figure 3The embodiment of the present invention provides a lithium battery pole piece processing device, including a shell 1, which is a split type, with side panels on the front, back and both sides. The top and bottom shell 1 contours fit the internal structure, making the device more compact as a whole. The inner side of the shell 1 is symmetrically connected to two inner rollers 9 for rotation up and down. The vertical inner rollers 9 are connected by nitrile rubber belts 16. Nitrile rubber has excellent oil resistance, wear resistance and certain elasticity. It can generate obvious static electricity when rubbed with wool felt. The front ends of the two upper inner rollers 9 are fixedly connected to gears 13. , two gears 13 are meshed and connected, the electrostatic dust suction is a bilaterally symmetrical structure, corresponding to the two sides of the lithium battery pole piece 4 respectively, and the electrostatic dust suction structures on both sides are moved simultaneously by the gear 13, the vertical outer rollers 10 are connected by a rubber belt 17, and the outer side of the rubber belt 17 is fixedly connected with a wool felt layer 8, and the wool felt layer 8 is in contact with the nitrile rubber belt 16, and the wool felt layer 8 is made of wool felt, and the wool felt is fixed to the outer side of the rubber belt 17 by gluing or sewing. The ability of electrons is weak, and electrons are easily transferred from the wool felt to other materials, making the wool felt positively charged, while the material accepting electrons is negatively charged. The wool felt layer 8 with weak electron binding ability is easy to lose electrons and become positively charged, while the nitrile rubber belt 16 with strong electron binding ability is easy to gain electrons and become negatively charged. When the lithium battery pole piece 4 passes through the nitrile rubber belt 16, the nitrile rubber belt 16 will absorb dust on both sides of the lithium battery pole piece 4. The outer side of the gear 13 is fixedly connected with a large synchronous pulley 14, and the nitrile rubber belt 16 is vertically arranged on the far side. Two outer rollers 10 are arranged, and the front ends of the two upper outer rollers 10 are fixedly connected with small synchronous pulleys 15, and the small synchronous pulleys 15 are connected with the adjacent large synchronous pulleys 14 through synchronous toothed belts 18. The rotation speed of the small synchronous pulley 15 is faster than that of the large synchronous pulley 14, so that the wool felt layer 8 can rub against the nitrile rubber belt 16 faster, so that the surface of the nitrile rubber belt 16 can produce a stronger static electricity effect. A servo motor 2 is fixedly connected to the upper rear side of the shell 1, and the output end of the servo motor 2 is fixedly connected to one of the inner rollers 9 at the top.

[0032] The outer roller shafts 10 are rotatably connected to the shell 1, and the synchronous toothed belt 18 is meshed and connected with the small synchronous pulley 15 and the large synchronous pulley 14 respectively. The transmission accuracy of the synchronous toothed belt 18 is higher and more stable. A cover shell 5 is arranged on the outer side of the small synchronous pulley 15 and the large synchronous pulley 14. The cover shell 5 is fixedly connected to the shell 1. The cover shell 5 plays a role in protecting the small synchronous pulley 15, the large synchronous pulley 14, the synchronous toothed belt 18 and the gear 13, and also prevents the exposed gear 13 from posing a safety hazard to the operator. The front and rear ends of the bottom of both sides of the shell 1 are fixedly connected with fixed legs 7, and a lithium battery pole piece 4 is arranged between the guide rollers 28, and the lithium battery pole piece 4 passes between the nitrile rubber belts 16.

[0033] Please see attached Figure 2 , Attachment Figure 3 -Attached Figure 6 A dust collecting mechanism is provided at the inner bottom of the shell 1, and the dust collecting mechanism includes a dust hood 12 and a dust box 11. The dust hood 12 is fixedly connected to both sides of the inner bottom end of the shell 1, and the hood opening of the dust hood 12 is close to the nitrile rubber belt 16. The dust box 11 is fixedly connected to the rear end of the shell 1, and a vacuum cleaner motor 20 is fixedly connected to the top of the dust box 11, and the air inlet of the vacuum cleaner motor 20 is connected to the dust box 11. Silicone oil is provided in the dust box 11, and the height of the silicone oil does not exceed the height of the pipe opening of the suction pipe 6. The middle part of the dust hood 12 is fixedly connected to one end of the suction pipe 6, and the other end of the suction pipe 6 respectively passes through both sides of the dust box 11 and extends into the silicone oil. Starting the vacuum cleaner motor 20 generates negative pressure in the dust box 11, and the air is sucked out through the suction pipe 6 and the dust collector. The dust hood 12 sucks the dust on the surface of the nitrile rubber belt 16 into the dust box 11, and the dust entering the dust box 11 is adsorbed by silicone oil. It is cheaper to adsorb dust by silicone oil, and no additional filtering consumables are required. The air outlet of the vacuum cleaner motor 20 can directly discharge the absorbed air. The dust collecting mechanism also includes a static elimination rod 24. The static elimination rod 24 adopts the 1250-S classic static elimination rod. The static elimination rod 24 is fixedly connected to the dust hood 12. A plurality of emission needles 25 are evenly spaced on one side of the static elimination rod 24 facing the nitrile rubber belt 16. The static elimination rod 24 is used to eliminate the static electricity attached to the nitrile rubber belt 16, separate the auxiliary dust from the nitrile rubber belt 16, make the dust more easily absorbed by the dust hood 12, and improve the dust collection effect.

[0034] A liquid level window 21 is provided on the rear side of the dust box 11 for observing the liquid level height in the dust box 11. An oil filling port is provided on one side of the top end of the dust box 11, and an upper cover 22 is threadedly connected to the oil filling port. A sewage outlet is provided on one side of the bottom end of the dust box 11, and a lower cover 23 is threadedly connected to the sewage outlet. When the equipment stops working to clean the dust, you only need to open the lower cover 23 to discharge the silicone oil that absorbs the dust.

[0035] Please see attached Figure 1 -Attached Figure 2 , Attachment Figure 7 A limiting mechanism is provided at the middle of the upper and lower ends of the shell 1, and the limiting mechanism includes a limiting frame 3. The limiting frame 3 is provided with two, each of which is connected to the top and bottom ends of the shell 1 through two clamping plates 26. A slide groove 31 is provided on the front and rear sides of the limiting frame 3. A slide rod 30 is fixedly connected transversely in the slide groove 31. An end block 19 is slidably connected to the slide rod 30. A spring 29 is sleeved on the opposite side of the slide rod 30 on the same side. The spring 29 is against the corresponding end block 19. A connecting rod 27 is rotatably connected between the front and rear end blocks 19. Guide rollers 28 are fixedly connected at both ends of the connecting rod 27. The guide rollers 28 play a role of clamping and limiting, so that the lithium battery pole piece 4 is between the two nitrile rubber belts 16.

[0036] Although 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 lithium battery pole piece processing device, comprising a housing (1), characterized in that: Two inner rollers (9) are symmetrically connected to the inner side of the shell (1) for rotation in an upper and lower manner. The inner rollers (9) are vertically connected via a nitrile rubber belt (16). The front ends of the two upper inner rollers (9) are fixedly connected with gears (13). The two gears (13) are meshingly connected. The outer sides of the gears (13) are fixedly connected with large synchronous pulleys (14). Two outer rollers (10) are vertically arranged on the side away from the nitrile rubber belt (16). The outer rollers (10) are vertically connected via a rubber belt (17). The outer sides of the rubber belts (17) are fixedly connected. A wool felt layer (8) is connected, and the wool felt layer (8) is in contact with a nitrile rubber belt (16); the front ends of the two upper outer rollers (10) are fixedly connected to small synchronous pulleys (15); the small synchronous pulleys (15) are connected to adjacent large synchronous pulleys (14) through synchronous toothed belts (18); a servo motor (2) is fixedly connected to the upper rear side of the shell (1); the output end of the servo motor (2) is fixedly connected to one of the inner rollers (9) at the top; a dust collecting mechanism is arranged at the inner bottom of the shell (1); and a limiting mechanism is arranged at the middle of the upper and lower ends of the shell (1).

2. The lithium battery pole piece processing equipment according to claim 1, characterized in that: The dust collecting mechanism comprises a dust collecting hood (12) and a dust collecting box (11); the dust collecting hood (12) is fixedly connected to both sides of the inner bottom end of the shell (1), and the hood opening of the dust collecting hood (12) is close to the nitrile rubber belt (16); the dust collecting box (11) is fixedly connected to the rear end of the shell (1); the top of the dust collecting box (11) is fixedly connected to a vacuum cleaner motor (20), and the air inlet of the vacuum cleaner motor (20) is connected to the dust collecting box (11); silicone oil is provided in the dust collecting box (11); the middle part of the dust collecting hood (12) is fixedly connected to one end of the air intake pipe (6), and the other end of the air intake pipe (6) respectively passes through both sides of the dust collecting box (11) and extends into the silicone oil.

3. The lithium battery pole piece processing equipment according to claim 2, characterized in that: The dust collecting mechanism also includes a static elimination rod (24), which is fixedly connected to the dust collecting cover (12), and a plurality of emission needles (25) are evenly spaced on one side of the static elimination rod (24) facing the nitrile rubber belt (16).

4. The lithium battery pole piece processing equipment according to claim 1, characterized in that: The limiting mechanism comprises a limiting frame (3), wherein the limiting frame (3) is provided with two top ends and bottom ends connected to the shell (1) through two clamping plates (26), and the front and rear sides of the limiting frame (3) are provided with sliding grooves (31), and the sliding grooves (31) are transversely fixedly connected with sliding rods (30), and the sliding rods (30) are slidably connected with end blocks (19), and the sliding rods (30) are sleeved with springs (29) on the opposite sides of the sliding rods (30) on the same side, and the springs (29) are abutted against the corresponding end blocks (19), and the front and rear end blocks (19) are rotatably connected with connecting rods (27), and the two ends of the connecting rods (27) are fixedly connected with guide rollers (28).

5. The lithium battery pole piece processing equipment according to claim 1, characterized in that: The outer rollers (10) are all rotationally connected to the housing (1), and the synchronous toothed belts (18) are respectively meshed and connected to the small synchronous belt pulley (15) and the large synchronous belt pulley (14).

6. The lithium battery pole piece processing equipment according to claim 1, characterized in that: A cover shell (5) is arranged outside the small synchronous pulley (15) and the large synchronous pulley (14), and the cover shell (5) is fixedly connected to the housing (1). The front and rear ends of the bottoms of both sides of the housing (1) are fixedly connected to fixed legs (7).

7. The lithium battery pole piece processing equipment according to claim 2, characterized in that: A liquid level window (21) is arranged on the rear side of the dust collecting box (11), an oil filling port is arranged on one side of the top end of the dust collecting box (11), and an upper cover (22) is threadedly connected to the oil filling port, and a sewage outlet is arranged on one side of the bottom end of the dust collecting box (11), and a lower cover (23) is threadedly connected to the sewage outlet.

8. The lithium battery pole piece processing equipment according to claim 4, characterized in that: A lithium battery pole piece (4) is arranged between the guide rollers (28), and the lithium battery pole piece (4) passes between the nitrile rubber belts (16).

9. The method for using the lithium battery pole piece processing equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. First, inject silicone oil into the dust box (11), and the amount of oil injected is not enough to cover the nozzle of the suction pipe (6); S2. One end of the uncut lithium battery pole piece (4) is connected between the guide rollers (28) of the upper limiting mechanism, and the lithium battery pole piece (4) is connected between the guide rollers (28) of the lower limiting mechanism through the nitrile rubber belt (16); S3. The servo motor (2) drives the inner roller (9) to rotate, and the inner roller (9) drives the nitrile rubber belt (16) to roll. At the same time, the rubber belt (17) on the outer roller (10) rotates synchronously, and the wool felt layer (8) rubs the nitrile rubber belt (16) to generate static electricity. The continuously rolling nitrile rubber belt (16) absorbs dust on both sides of the lithium battery pole piece (4); S4. The vacuum cleaner motor (20) and the static elimination rod (24) are driven to remove the static electricity on the nitrile rubber belt (16). At the same time, the negative pressure sucks the dust into the dust collecting box (11). After the dust removal is completed, the lower cover (23) is opened to discharge the silicone oil that absorbs the dust.

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