Magnetic impurity removing device for lithium battery material

Abstract

The utility model belongs to the technical field of lithium battery production, and relates to a lithium battery material magnetic impurity removing device which comprises a working platform, a placing box fixedly connected to the middle of the working platform, a first U-shaped table fixedly connected to one side of the placing box, a second U-shaped table fixedly connected to the other side of the placing box, and sliding grooves formed in the inner walls of the two sides of the placing box. The middle of the sliding groove is movably connected with a movable plate, a moving assembly is arranged in the middle of the first U-shaped table, a guiding assembly is arranged in the middle of the second U-shaped table, a knocking assembly is arranged in the middle of the containing box, the moving assembly comprises a servo motor, the servo motor is arranged on one side of the top end of the working platform, and the output end of the servo motor is connected with a lead screw. According to the utility model, magnetic impurities in lithium battery raw materials can be adsorbed by driving the moving assembly, so that the conditions that the raw materials are easily physically damaged in the adsorption process, the raw materials are broken in particles and changed in structure, and the stability of produced lithium batteries is reduced are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery production technical field relates to a kind of lithium battery material magnetic impurity removal device. BACKGROUND

[0002] In the production process of lithium battery, if the material used contains magnetic impurities, it will seriously threaten the safety of the battery, these impurities can cause internal short circuit of battery, directly reduce the working efficiency of battery, and significantly reduce the charge-discharge cycle times of battery, in addition, they also have adverse effects on the thermal stability of battery, can lead to battery overheating or failure under certain conditions, therefore, strictly control the content of magnetic impurities in material is the key step to ensure the stability and safety of lithium battery performance.

[0003] As patent (CN218654901U) discloses a kind of lithium battery material magnetic impurity removal device, including the trough body with feeding pipe and discharge pipe, trough body is equipped with stirring device, stirring device includes stirring shaft and stirring paddle, the outside of trough body is equipped with electromagnetic mechanism for making magnetic impurities adsorbed on the inner wall of trough body.The utility model fully disperses magnetic impurities and electrode material by stirring paddle, and the electromagnetic mechanism can be used to adsorb magnetic impurities on the inner wall of trough body, so that magnetic impurities can be removed conveniently, and the magnetic removal efficiency is high, while non-magnetic substances can smoothly enter the next process, so as to ensure that the magnetic impurities in material are cleaned completely, especially for fine particle electrode material, it has good removal effect.

[0004] When using the above technology, it is found that the prior art has the following technical problems: the above device is easy to cause certain physical damage to raw materials in the stirring process due to the operation of stirring paddle, such as particle breakage, structure change, etc., which further leads to the influence on battery quality and stability in subsequent lithium battery production. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that the above device is easy to cause certain physical damage to raw materials in the stirring process due to the operation of stirring paddle, such as particle breakage, structure change, etc., which further leads to the influence on battery quality and stability in subsequent lithium battery production.

[0006] The utility model discloses a kind of magnetic impurities removal devices of lithium battery material, including work platform, stationary connection is placed in the middle of the work platform Box, first U-shaped table is fixedly connected on the one side of the box, second U-shaped table is fixedly connected on the other side of the box, sliding slot is all set up in the inner wall of the both sides of the box, movable plate is movably connected in the middle of the sliding slot, moving assembly is provided in the middle of the first U-shaped table, guiding assembly is provided in the middle of the second U-shaped table, knock assembly is provided in the middle of the box, the moving assembly includes servo motor, servo motor is provided on the top side of the work platform, the output end of the servo motor is connected with screw rod, the one end of the screw rod is rotatably connected on the side of first U-shaped table, the middle of the screw rod is connected with second connecting sleeve by screwing, second connecting sleeve top is welded with curved rod, multiple groups of connecting rods are fixedly connected in the middle of the curved rod, adsorption iron plate is fixedly connected on the bottom end of the connecting rod, the guiding assembly includes guide rod, the other end of the guide rod is fixedly connected on the other side of second U-shaped table, the middle of the guide rod is slidably connected with first connecting sleeve, the middle of the first connecting sleeve is fixedly connected with the one end of curved rod, the bottom of second connecting sleeve and first connecting sleeve is provided with sliding assembly.

[0007] The knock assembly includes first rotating rod, the middle of the box is rotatably connected with first rotating rod, the middle of the box is rotatably connected with second rotating rod, multiple groups of knock blocks are fixedly connected in the middle of the first rotating rod and second rotating rod, the output end of the servo motor and the one end of the first rotating rod are fixedly connected with first synchronous pulley, the middle of the first synchronous pulley is sleeved with first synchronous belt, the one end of the first rotating rod and second rotating rod is fixedly connected with second synchronous pulley, the middle of the second synchronous pulley is sleeved with second synchronous belt.

[0008] The sliding assembly includes guide rod, the bottom of second connecting sleeve and first connecting sleeve is fixedly connected with guide rod, the bottom of the guide rod is fixedly connected with U-shaped plate, the both sides of the U-shaped plate are rotatably connected with rotating shaft, the middle of the rotating shaft is fixedly connected with gyro wheel.

[0009] The middle of the gyro wheel is provided with clamping groove, guide rail is fixedly connected in the middle of the first U-shaped table and second U-shaped table, the clamping groove and guide rail are mutually attached.

[0010] The middle of the second rotating rod and first rotating rod is sleeved with hollow sleeve, the both sides of the hollow sleeve are fixedly connected with support rod, the bottom end of the support rod is fixedly connected to the bottom of the box.

[0011] The both sides of the hollow sleeve are fixedly connected with L-shaped limit rod, the middle of the second rotating rod and first rotating rod is provided with two groups of limit slot, the limit slot and the one end of L-shaped limit rod are mutually attached.

[0012] Compared with the prior art, the lithium battery raw material in the magnetic impurities can be adsorbed through the driving moving assembly, so that the physical damage of the raw material in the adsorption process is reduced, and the particle breakage and structure change of the raw material are caused, thereby the stability of the produced lithium battery is reduced, and the setting of the knocking assembly can facilitate the adsorption iron plate to better adsorb the magnetic impurities in the raw material, so that the removal efficiency of the magnetic impurities is improved, and the work progress is accelerated.

[0013] The setting of the sliding assembly can play the role of auxiliary supporting the first connecting sleeve and the second connecting sleeve, so that the first connecting sleeve and the second connecting sleeve are less affected by the long working time and large working load when moving, and the large wear of the lead screw and the guide rod is reduced, and the service life of the lead screw and the guide rod is reduced, and the setting of the clamping groove and the guide rail can play the role of limiting the moving track of the adsorption iron plate by the guide rod, so that the stability and reliability of the adsorption iron plate in the moving process are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the whole of the utility model,

[0015] Figure 2 It is the structure schematic diagram of the utility model placing box,

[0016] Figure 3 It is the structure schematic diagram of the utility model moving assembly,

[0017] Figure 4 It is the structure schematic diagram of the utility model placing box,

[0018] Figure 5 It is the structure schematic diagram of the utility model sliding assembly,

[0019] Figure 6 It is the structure schematic diagram of the utility model U-shaped plate,

[0020] Figure 7 It is the structure schematic diagram of the utility model second rotating rod.

[0021] In the diagram: 1. Working platform; 11. Placement box; 12. Servo motor; 13. First U-shaped platform; 14. Second U-shaped platform; 15. Lead screw; 16. Guide rod; 17. First connecting sleeve; 18. Bending rod; 19. Connecting rod; 111. Adsorption plate; 112. Second connecting sleeve; 113. Slide groove; 114. Movable plate; 115. First rotating rod; 116. Second rotating rod; 117. Striking block; 118. First synchronous pulley; 119. First synchronous belt; 121. Second synchronous pulley; 122. Second synchronous belt; 2. Guide rod; 21. U-shaped plate; 22. Rotating shaft; 23. Roller; 24. Slot; 25. Guide rail; 3. Hollow sleeve; 31. Support rod; 32. L-shaped limiting rod; 33. Limiting groove. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-7 As shown, the system includes a work platform 1, a placement box 11 fixedly connected to the middle of the work platform 1, a first U-shaped platform 13 fixedly connected to one side of the placement box 11, and a second U-shaped platform 14 fixedly connected to the other side of the placement box 11. Slide grooves 113 are formed on the inner walls of both sides of the placement box 11, and a movable plate 114 is movably connected to the middle of the slide grooves 113. A moving component is provided in the middle of the first U-shaped platform 13, a guiding component is provided in the middle of the second U-shaped platform 14, and a striking component is provided in the middle of the placement box 11. The moving component includes a servo motor 12. A servo motor 12 is also provided on one side of the top of the work platform 1, and a lead screw 15 is connected to the output end of the servo motor 12. One end of the lead screw 15 rotates. A second connecting sleeve 112 is threadedly connected to the middle of the lead screw 15 connected to one side of the first U-shaped platform 13. A bending rod 18 is welded to the top of the second connecting sleeve 112. Multiple sets of connecting rods 19 are fixedly connected to the middle of the bending rod 18. An adsorption iron plate 111 is fixedly connected to the bottom of each connecting rod 19. The guide assembly includes a guide rod 16. A guide rod 16 is fixedly connected to one side of the second U-shaped platform 14. The other end of the guide rod 16 is fixedly connected to the other side of the second U-shaped platform 14. A first connecting sleeve 17 is slidably connected to the middle of the guide rod 16. The middle of the first connecting sleeve 17 is fixedly connected to one end of the bending rod 18. Sliding assemblies are provided at the bottom of both the second connecting sleeve 112 and the first connecting sleeve 17.

[0024] The knocking assembly comprises a first rotating rod 115, the first rotating rod 115 being rotatably connected to the middle part of the placing box 11, a second rotating rod 116 being rotatably connected to the middle part of the placing box 11, a plurality of groups of knocking blocks 117 being fixedly connected to the middle parts of the first rotating rod 115 and the second rotating rod 116, a first synchronous pulley 118 being fixedly connected to one end of the output end of the servo motor 12 and one end of the first rotating rod 115, the first synchronous pulley 118 being sleeved with a first synchronous belt 119 in the middle part, a second synchronous pulley 121 being fixedly connected to one end of the first rotating rod 115 and one end of the second rotating rod 116, and the second synchronous pulley 121 being sleeved with a second synchronous belt 122 in the middle part. Through the driving of the moving assembly, the magnetic impurities in the lithium battery raw materials can be adsorbed, so that the physical damage of the raw materials in the adsorption process is reduced, and the particle breakage and structure change of the raw materials are avoided, thereby reducing the stability of the produced lithium battery. Through the arrangement of the knocking assembly, the adsorption iron plate 111 can better adsorb the magnetic impurities in the raw materials, so as to improve the removal efficiency of the magnetic impurities and accelerate the work progress.

[0025] Embodiment two

[0026] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , the sliding assembly comprises guide rods 2, the guide rods 2 being fixedly connected to the bottoms of the second connecting sleeve 112 and the first connecting sleeve 17, the guide rods 2 being fixedly connected to the bottoms of the U-shaped plates 21, the U-shaped plates 21 being rotatably connected to the inner walls on both sides, the rotating shafts 22 being fixedly connected to the middle parts of the U-shaped plates 21, the rollers 23 being arranged in the middle parts of the rotating shafts 22, and the rollers 23 being provided with limiting assemblies in the middle parts.

[0027] The rollers 23 are provided with clamping grooves 24 in the middle parts, guide rails 25 are fixedly connected to the middle parts of the first U-shaped table 13 and the second U-shaped table 14, and the clamping grooves 24 and the guide rails 25 are matched with each other. Through the arrangement of the sliding assembly, the first connecting sleeve 17 and the second connecting sleeve 112 can be supported, so that the guide rails 25 and the clamping grooves 24 can limit the movement of the guide rods 16, thereby reducing the abrasion of the guide rods 16 and the lead screws 15 caused by the long working time and heavy working load, and prolonging the service life of the guide rods 16 and the lead screws 15. Through the arrangement of the clamping grooves 24 and the guide rails 25, the guide rods 16 can limit the movement track of the adsorption iron plate 111, thereby improving the stability and reliability of the adsorption iron plate 111 during the movement.

[0028] Embodiment three

[0029] As shown in Figure 4 and Figure 7 , the second rotating rod 116 and the first rotating rod 115 are sleeved with hollow sleeves 3 in the middle parts, the hollow sleeves 3 are fixedly connected to support rods 31 on both sides, and the support rods 31 are fixedly connected to the bottom of the placing box 11.

[0030] Both sides of the hollow sleeve 3 are fixed with L-shaped limiting rods 32. The second rotating rod 116 and the first rotating rod 115 are provided with two sets of limiting grooves 33 in the middle. The limiting grooves 33 and one end of the L-shaped limiting rods 32 are in contact with each other. This step, by opening the support component, can reduce the impact of the first rotating rod 115 and the second rotating rod 116 being pushed by the striking block 117 to move the movable plate 114 when rotating, which will cause them to carry a large load, thereby causing the first rotating rod 115 and the second rotating rod 116 to deform and affect their normal operation. By opening the limiting grooves 33 and the L-shaped limiting rods 32, the first rotating rod 115 and the second rotating rod 116 can be reduced from sliding back and forth at the placement box 11 due to uneven force when rotating.

[0031] The following is the usage process of the magnetic impurity removal device for lithium battery materials provided by this utility model: When it is necessary to remove magnetic impurities from the raw materials for lithium battery production, the raw materials can be placed inside the placement box 11 and positioned at the movable plate 114. Then, the servo motor 12 is driven to rotate the lead screw 15 at the first U-shaped platform 13. The rotation of the lead screw 15 will cause the second connecting sleeve 112 to move accordingly. The movement of the second connecting sleeve 112 will cause the bending rod 18, the connecting rod 19, and the adsorption iron plate 111 to move. At this time, the movement of the bending rod 18 will cause the first connecting sleeve 17 to move, and the first connecting sleeve 17 will slide along the middle of the guide rod 16 when it moves, thereby restricting the movement of the second connecting sleeve 112, the bending rod 18, and the adsorption iron plate 111. The movement trajectory of the connecting rod 19 and the adsorption plate 111 causes the adsorption plate 111 to slide linearly above the movable plate 114. At this time, the material of the adsorption plate 111 can adsorb magnetic impurities in the raw material at the movable plate 114. At the same time, the operation of the servo motor 12 will drive the first synchronous pulley 118 at its output end to rotate. The first synchronous belt 119 can connect the first rotating rod 115 and the first synchronous pulley 118 at the servo motor 12, so that the operation of the servo motor 12 drives the first rotating rod 115 to rotate in the middle of the placement box 11. The second synchronous belt 122 can connect the second synchronous pulley 121 at the first rotating rod 115 and the second rotating rod 116, so that the first rotating rod 115 can rotate in the middle of the placement box 11. When the first rotating rod 115 rotates, the second synchronous pulley 121 and the second synchronous belt 122 drive the second rotating rod 116 to rotate. The rotation of the first rotating rod 115 and the second rotating rod 116 drives the striking block 117 to rotate. During rotation, the protruding end of the striking block 117 presses against the movable plate 114, thus striking the movable plate 114. This causes the movable plate 114 to bounce at the slide groove 113. The bouncing of the movable plate 114 causes the raw material to shake up and down, which facilitates better adsorption of magnetic impurities by the adsorption plate 111. This step, by driving the moving component, can adsorb magnetic impurities in the lithium battery raw material, thereby reducing the physical damage to the raw material during adsorption, which could lead to particle breakage and structural changes. The changes resulted in a decrease in the stability of the produced lithium batteries. However, by setting up the tapping component, the adsorption iron plate 111 can better adsorb magnetic impurities in the raw materials, thereby improving the removal efficiency of magnetic impurities and speeding up the work process. When the second connecting sleeve 112 and the first connecting sleeve 17 move, they will drive the guide rod 2, U-shaped plate 21, rotating shaft 22 and roller 23 to move synchronously. The bottoms of the two sets of rollers 23 are in contact with the bottoms of the first U-shaped platform 13 and the second U-shaped platform 14, respectively. Therefore, when the rollers 23 move, they will generate friction with the bottoms of the first U-shaped platform 13 and the second U-shaped platform 14, thereby causing the rollers 23 to drive the rotating shaft 22 to roll at the U-shaped plate 21. The rolling of the rollers 23 will also drive the slot 24 to move.At this time, because the guide rail 25 is stuck in the middle of the slot 24, the roller 23 will move linearly along the guide rail 25 when it rolls. This step, through the setting of the sliding component, can play a role in assisting the support of the first connecting sleeve 17 and the second connecting sleeve 112, thereby reducing the wear on the lead screw 15 and the guide rod 16 caused by the large working time and heavy workload when the first connecting sleeve 17 and the second connecting sleeve 112 move, thus reducing the working life of the lead screw 15 and the guide rod 16. The slot 24 and the guide rail 25 can help the guide rod 16 to limit the movement trajectory of the adsorption iron plate 111, thereby improving the stability and reliability of the adsorption iron plate 111 during the movement process. When the second rotating rod 116 and the first rotating rod 115 rotate, their middle parts will rotate at the hollow sleeve 3, and the support rod 31 can cooperate with the hollow sleeve. 3. The first rotating rod 115 and the second rotating rod 116 are supported. Simultaneously, the rotation of the first rotating rod 115 and the second rotating rod 116 causes the limiting groove 33 to move synchronously. Because one end of the L-shaped limiting rod 32 is engaged in the limiting groove 33, it effectively restricts the rotation trajectory of the first rotating rod 115 and the second rotating rod 116. This step, through the hollow sleeve 3 and the support rod 31, reduces the likelihood of the first rotating rod 115 and the second rotating rod 116 being affected by the impact block 117 pushing against the movable plate 114 during rotation, thus reducing the load on them and preventing deformation and affecting their normal operation. The L-shaped limiting rod 32 and the limiting groove 33 also reduce the likelihood of the first rotating rod 115 and the second rotating rod 116 sliding back and forth at the placement box 11 due to uneven force during rotation.

[0032] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A device for removing magnetic impurities from lithium battery materials, characterized by: The utility model provides a work platform, including work platform (1), the middle part of work platform (1) is fixed with and places box (11), one side of places box (11) is fixed with first U -shaped table (13), the other side of places box (11) is fixed with second U -shaped table (14), the inner wall of both sides of places box (11) is all seted up with sliding slot (113), the middle part of sliding slot (113) is movably connected with movable plate (114), the middle part of first U -shaped table (13) is provided with moving assembly, the middle part of second U -shaped table (14) is provided with guide assembly, the middle part of places box (11) is provided with knock assembly, moving assembly includes servo motor (12), the top one side of work platform (1) is provided with servo motor (12), the output of servo motor (12) is connected with screw rod (15), one end of screw rod (15) is rotatably connected in first U -shaped table (13) one side, the middle part of screw rod (15) is threadedly connected with second connecting sleeve (112), the top of second connecting sleeve (112) is welded with curved rod (18), the middle part of curved rod (18) is fixed with multiple connecting rods (19), the bottom of connecting rod (19) is all fixed with adsorption iron plate (111), guide assembly includes guide rod (16), the other end of guide rod (16) is fixed in second U -shaped table (14) the other side, the middle part of guide rod (16) is slidably connected with first connecting sleeve (17), the middle part of first connecting sleeve (17) is fixed with curved rod (18) one end, and the bottom of second connecting sleeve (112) and first connecting sleeve (17) is provided with sliding assembly.

2. The device for removing magnetic impurities from lithium battery materials according to claim 1, characterized in that: Knock assembly includes first rotary rod (115), the middle part of places box (11) is rotatably connected with first rotary rod (115), the middle part of places box (11) is rotatably connected with second rotary rod (116), the middle part of first rotary rod (115) and second rotary rod (116) is all fixed with multiple knock block (117), the output of servo motor (12) and first rotary rod (115) one end are all fixed with first synchronous pulley (118), the middle part of first synchronous pulley (118) is all seted up with first synchronous belt (119), first rotary rod (115) and second rotary rod (116) one end are all fixed with second synchronous pulley (121), the middle part of second synchronous pulley (121) is all seted up with second synchronous belt (122).

3. The device for removing magnetic impurities from lithium battery materials according to claim 1, characterized in that: Sliding assembly includes guide rod (2), the bottom of second connecting sleeve (112) and first connecting sleeve (17) is all fixed with guide rod (2), the bottom of guide rod (2) is all fixed with U -shaped plate (21), the both sides inner wall of U -shaped plate (21) are rotatably connected with pivot (22), the middle part of pivot (22) is fixed with gyro wheel (23).

4. The device for removing magnetic impurities from lithium battery materials according to claim 3, characterized in that: The middle part of gyro wheel (23) is all seted up with clamping groove (24), the middle part of first U -shaped table (13) and second U -shaped table (14) is all fixed with guide rail (25), and clamping groove (24) and guide rail (25) are mutually pasted.

5. The device for removing magnetic impurities from lithium battery materials according to claim 2, characterized in that: The middle part of the second rotating rod (116) and the first rotating rod (115) is sleeved with a hollow sleeve (3), and the two sides of the hollow sleeve (3) are fixedly connected with supporting rods (31), and the bottom ends of the supporting rods (31) are fixedly connected with the bottom of the placing box (11).

6. The device for removing magnetic impurities from lithium battery materials according to claim 5, characterized in that: The two sides of the hollow sleeve (3) are fixedly connected with L-shaped limiting rods (32), and the middle part of the second rotating rod (116) and the first rotating rod (115) is provided with two groups of limiting grooves (33), and one end of the L-shaped limiting rod (32) and the limiting groove (33) are mutually attached.

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