Material filling device for battery positive electrode material production

Abstract

The invention relates to the technical field of lithium battery production, in particular to a material filling device for battery positive electrode material production, which comprises a conveying frame, a filling barrel is fixedly connected right above the conveying frame, the top of the filling barrel is fixedly communicated with a feeding pipe, the top of the filling barrel is rotatably connected with an outer circular ring, and the outer circular ring is rotatably connected with the conveying frame. An inner circular ring is rotationally connected to the interior of the outer circular ring, and a plurality of scraping frames are fixedly connected to the surface of the outer circular ring in the circumferential direction; according to the device, the scraping frame is in sliding fit with the inner wall of the filling barrel, rotary scraping is conducted on the inner wall of the filling barrel, and therefore adsorption adhesion between lithium cobalt oxide powder and the inner wall under the electrostatic adsorption effect is reduced, and when an outer circular ring and an inner circular ring rotate in the reverse direction, a first shearing strip and a second shearing strip rotate in the reverse direction; therefore, the caked lithium cobalt oxide powder is crushed, and the caking phenomenon of the lithium cobalt oxide powder is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production, and in particular to a material filling device for producing battery positive electrode materials. Background Art

[0002] Lithium cobalt oxide is one of the most common positive electrode materials in commercial lithium-ion batteries. It is responsible for storing and releasing energy through the embedding and extraction of lithium ions during the charging and discharging process. The crystal structure of lithium cobalt oxide is a layered oxide, and lithium ions can migrate quickly between layers, ensuring efficient electrochemical reactions.

[0003] The patent document with publication number CN214254492U discloses a material filling device for the production of positive electrode materials for lithium-ion batteries, which includes a base, a card cover is fixedly installed on one side of the top of the base, and a filling tube is carded in the card cover, a movable seat is slidably connected to the top of the base, a discharge hole is opened on the movable seat, and a card tube connected to the discharge hole is fixedly installed on the top of one side of the movable seat.

[0004] After the preparation of lithium cobalt oxide powder is completed, it needs to be filled into a container for storage. In the prior art, when filling lithium cobalt oxide powder, a feeding screw is usually used to spirally convey the lithium cobalt oxide powder. However, in the actual filling process, the lithium cobalt oxide powder material is prone to agglomeration due to electrostatic adsorption and adsorption to the equipment. It is easy to adhere to the inner wall of the filling equipment and block the feeding port, thereby reducing the filling efficiency of the lithium cobalt oxide powder. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a material filling device for producing battery positive electrode materials.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a material filling device for producing positive electrode materials of batteries, comprising a conveying frame, a filling barrel is fixedly connected directly above the conveying frame, a feeding pipe is fixedly connected to the top of the filling barrel, and a discharge pipe is fixedly connected to the axis of the bottom of the filling barrel; The top of the filling drum is rotatably connected to an outer ring, the inner part of the outer ring is rotatably connected to an inner ring, the surface of the outer ring is circumferentially fixedly connected to a plurality of scraper frames, the scraper frames are slidably fitted to the inner wall of the filling drum, the scraper frames are internally fixedly connected to a plurality of first shear strips, the surface of the inner ring is circumferentially fixedly connected to a plurality of second shear strips, and a reverse rotation mechanism is connected between the outer ring and the inner ring; The discharge pipe and the inner ring are jointly slidably inserted with a feed ring, a spiral feed trough is provided on the feed ring, a synchronous rotation mechanism is connected between the inner ring and the feed ring, a sliding sleeve is rotatably connected to the top of the feed ring, and a lifting mechanism is connected to the sliding sleeve, a circular rod is provided inside the feed ring, the circular rod is fixedly connected to the sliding sleeve, a push pin is provided at the lower part of the feed ring, one end of the push pin passes through the feed ring and extends to the inside of the spiral feed trough, and the other end of the push pin is fixedly connected to a circular pin, and two circular disks are fixedly connected to the circular rod, and guide grooves are provided on adjacent sides of the two circular disks, and the two ends of the circular pin are respectively located in the corresponding guide grooves, and the guide grooves include an arc segment and a convex segment.

[0007] Preferably, the reverse rotation mechanism includes a first fixed ring and a second fixed ring, the first fixed ring and the second fixed ring are respectively fixedly connected to the top ends of the inner ring and the outer ring, the first fixed ring and the second fixed ring are respectively fixedly connected to the adjacent sides with a first inner gear ring and a second inner gear ring, the top of the filling barrel is fixedly connected to two mounting frames, both mounting frames are rotatably connected with matching gears, the two matching gears are meshed with each other, the first inner gear ring and the second inner gear ring are respectively meshed with the corresponding matching gears, the first fixed ring is fixedly connected with an outer gear ring, the top of the filling barrel is fixedly installed with a first motor, the output shaft of the first motor is fixedly connected with a driving gear, and the driving gear is meshed with the outer gear ring.

[0008] Preferably, the lifting mechanism includes a U-shaped frame, which is fixedly connected to the top of the filling barrel. A plurality of limit pins are slidably inserted on the U-shaped frame, and the limit pins are fixedly connected to the sliding sleeve. A first hydraulic cylinder is fixedly installed on the top of the U-shaped frame, and the piston shaft of the first hydraulic cylinder passes through the U-shaped frame and extends to the interior of the U-shaped frame and is fixedly connected to the axis center of the top of the sliding sleeve.

[0009] Preferably, the synchronous rotation mechanism comprises a strip groove and a limit bar, the strip groove is opened on the inner wall of the inner ring, the limit bar is fixedly connected to the side surface of the feeding ring, and the limit bar is located inside the strip groove.

[0010] Preferably, a plurality of piezoelectric ceramic sheets are fixedly mounted on the top of each of the first shear bar and the second shear bar.

[0011] Preferably, a baffle is fixedly connected to the bottom end of the discharge pipe, a storage shell is provided on the top of the conveying frame, a sealing cover is fixedly connected to the top of the storage shell, a filling hole is opened at the center of the sealing cover, two sealing plates are provided at the bottom of the filling hole, a second hydraulic cylinder is fixedly installed on the conveying frame, a weighing machine is fixedly connected to the top of the piston shaft of the second hydraulic cylinder, a movable opening and closing mechanism is connected to the sealing plate, and a one-way conveying mechanism is connected to the conveying frame.

[0012] Preferably, the one-way conveying mechanism includes a plurality of connecting short shafts, which are rotatably connected to both sides of the conveying frame, and the plurality of connecting short shafts are respectively located on both sides above the weighing device. The connecting short shafts are fixedly connected with short conveying rollers. The conveying frame is rotatably connected with a plurality of connecting long shafts, and the connecting long shafts are fixedly connected with long conveying rollers. One end of the connecting short shafts and both ends of the long conveying rollers are fixedly connected with driving gears. Both sides of the conveying frame are rotatably connected with a plurality of driven gears, and the driven gears are meshed with two adjacent driving gears. A second motor is fixedly installed on the conveying frame, and the output shaft of the second motor is fixedly connected to one end of the corresponding connecting long shaft.

[0013] Preferably, the movable opening and closing mechanism includes two limit frames, which are respectively located on both sides of the sealing cover, and two sliding rods are fixedly connected to the limit frames. One end of the sliding rods passes through the sealing cover and extends to the inside of the sealing cover and is fixedly connected to the corresponding sealing plate. The sliding rods are each provided with a spring, which is fixedly connected between the sealing cover and the corresponding sealing plate. Two wedge blocks are fixedly connected to the bottom of the baffle.

[0014] Preferably, guide frames are fixedly connected to both sides of the conveying frame, and the two guide frames are located on both sides above the weighing device.

[0015] Preferably, circular holes are formed on the two guide frames, and a laser emitter and a laser receiver are fixedly mounted on the sides of the two guide frames away from each other, respectively, and the circular holes are located between the laser emitter and the laser receiver.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The inner wall of the filling drum is scraped by the sliding fit between the scraping frame and the inner wall of the filling drum, thereby reducing the adsorption and adhesion of the lithium cobalt oxide powder to the inner wall under the action of electrostatic adsorption, and when the outer ring and the inner ring rotate in the opposite direction, the first shear bar and the second shear bar rotate in the opposite direction, and the first shear bar and the second shear bar are vertically staggered and inclined in opposite directions. In the process of reverse rotation, the lithium cobalt oxide powder inside the filling drum is sheared against each other, thereby breaking up the agglomerated lithium cobalt oxide powder, effectively reducing the agglomeration of the lithium cobalt oxide powder, and preventing the agglomeration of the lithium cobalt oxide powder from clogging the feed port.

[0017] 2. When the round pin is located inside the arc section of the guide groove, one end of the push pin is located inside the spiral feed trough and fits against the inner wall of the spiral feed trough, so that the spiral feed trough can perform normal spiral feeding. When the round pin moves from the arc section to the raised section, one end of the push pin extends outward from the spiral feed trough and pushes the lithium cobalt oxide powder in the spiral feed trough outward, ensuring the normal falling of the lithium cobalt oxide powder and preventing the lithium cobalt oxide powder from being adsorbed and adhered to the spiral feed trough when it moves to the bottom of the spiral feed trough, thereby effectively improving the conveying and filling efficiency of the lithium cobalt oxide powder.

[0018] 3. The piston shaft of the second hydraulic cylinder moves in the opposite direction, so that the storage shell and the sealing cover move downward and return to the initial position. During the return process, the sealing plate re-blocks the filling hole, and the one-way conveying mechanism continues to convey the filled storage shell in one direction. The vertical contact between the sealing cover and the baffle and the movable opening and closing of the filling hole can effectively reduce the dust emission generated by the lithium cobalt oxide powder during the filling process, improve the sealing of the lithium cobalt oxide powder during the filling process, thereby reducing the toxic volatilization of the lithium cobalt oxide powder during the filling and storage process, and reducing the toxic pollution of the lithium cobalt oxide powder to the staff and the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement at point A; Figure 3 For the present invention Figure 1 A schematic diagram of the structure at B in FIG. Figure 4 It is a schematic diagram of the matching structure of the filling drum, the outer ring, the inner ring and the feeding ring of the present invention (the filling drum is cut); Figure 5 For the present invention Figure 4 A schematic diagram of the structure at position C in FIG. Figure 6 It is a schematic diagram of the matching structure of the feeding ring, the sliding sleeve and the round rod of the present invention (the feeding ring is cut); Figure 7 For the present invention Figure 6 A schematic diagram of the structure at D in FIG. Figure 8 It is a schematic diagram of the matching structure of the storage housing and the sealing cover of the present invention (the sealing cover is cut away); Fig. 9 For the present invention Figure 8 A schematic diagram of the structure at position E in FIG. Fig.10 It is a schematic diagram of the coordination structure of the conveying frame, the weighing device and the guide frame of the present invention; Fig.11 For the present invention Fig.10 A magnified schematic diagram of the structure at F in FIG. Fig.12 For the present invention Fig.10 Schematic diagram of the enlarged structure at G in FIG.

[0020] In the figure: 1, conveying frame; 2, filling drum; 3, feeding pipe; 4, discharging pipe; 5, outer ring; 6, inner ring; 7, scraper frame; 8, first shear strip; 9, second shear strip; 10, feeding ring; 11, spiral feeding trough; 12, sliding sleeve; 13, round rod; 14, ejector pin; 15, round pin; 16, round plate; 17, guide groove; 1701, arc segment; 1702, raised segment; 18, first fixing ring; 19, second fixing ring; 20, first inner gear ring; 21, second inner gear ring; 22, mounting frame; 23, matching gear; 24, outer gear ring; 25, first motor; 26, driving gear ; 27. U-shaped frame; 28. Limit pin; 29. ​​First hydraulic cylinder; 30. Strip groove; 31. Limit strip; 32. Piezoelectric ceramic sheet; 33. Baffle; 34. Storage shell; 35. Sealing cover; 36. Filling hole; 37. Sealing plate; 38. Second hydraulic cylinder; 39. Weighing machine; 40. Connecting short shaft; 41. Conveying short roller; 42. Connecting long shaft; 43. Conveying long roller; 44. Driving gear; 45. Driven gear; 46. Second motor; 47. Limiting frame; 48. Sliding rod; 49. Spring; 50. Wedge block; 51. Guide frame; 52. Circular hole; 53. Laser transmitter; 54. Laser receiver. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] like Figures 1 to 12A material filling device for producing positive electrode materials for batteries shown in the figure comprises a conveying frame 1, a filling drum 2 is fixedly connected to the top of the conveying frame 1, a feeding pipe 3 is fixedly connected to the top of the filling drum 2, and a discharging pipe 4 is fixedly connected to the axis of the bottom of the filling drum 2; The top of the filling drum 2 is rotatably connected with an outer ring 5, the inner part of the outer ring 5 is rotatably connected with an inner ring 6, the surface of the outer ring 5 is fixedly connected with a plurality of scraper frames 7 along the circumferential direction, the scraper frames 7 and the inner wall of the filling drum 2 are slidably fitted, the scraper frames 7 are fixedly connected with a plurality of first shear strips 8, the surface of the inner ring 6 is fixedly connected with a plurality of second shear strips 9 along the circumferential direction, and a reverse rotation mechanism is connected between the outer ring 5 and the inner ring 6; A feeding ring 10 is inserted and slidably provided inside the discharge pipe 4 and the inner ring 6, and a spiral feeding trough 11 is provided on the feeding ring 10. A synchronous rotation mechanism is connected between the inner ring 6 and the feeding ring 10. A sliding sleeve 12 is rotatably connected to the top of the feeding ring 10, and a lifting mechanism is connected to the sliding sleeve 12. A circular rod 13 is provided inside the feeding ring 10, and the circular rod 13 is fixedly connected to the sliding sleeve 12. A push pin 14 is provided at the lower part of the feeding ring 10. One end of the push pin 14 passes through the feeding ring 10 and extends to the inside of the spiral feeding trough 11. The other end of the push pin 14 is fixedly connected to a circular pin 15. Two circular disks 16 are fixedly connected to the circular rod 13, and a guide groove 17 (such as Figure 7As shown in the figure, the two ends of the circular pin 15 are respectively located in the corresponding guide groove 17, and the guide groove 17 includes an arc segment 1701 and a convex segment 1702; during operation, after the preparation of the lithium cobalt oxide powder is completed, it needs to be filled into a container for storage. In the prior art, when filling the lithium cobalt oxide powder, the lithium cobalt oxide powder is usually spirally conveyed by a feeding screw. However, in the actual filling process, the lithium cobalt oxide powder material is easily agglomerated due to electrostatic adsorption and adsorbed with the equipment, and is easy to adhere to the inner wall of the filling equipment and block the feeding port, thereby reducing the filling efficiency of the lithium cobalt oxide powder;The technical solution can solve the above problems. The specific working method is as follows: the lithium cobalt oxide powder is transported to the inside of the filling barrel 2 along the feed pipe 3, and the storage container is placed on the top of the conveying frame 1 and below the discharge pipe 4. The sliding sleeve 12 is driven to move vertically downward by the action of the lifting mechanism, thereby driving the feeding ring 10 to move vertically downward along the sliding connection between the inner ring 6 and the discharge pipe 4, and moving part of the spiral feeding trough 11 to the bottom of the discharge pipe 4. The spiral feeding trough 11 is not connected to the bottom end of the feeding ring 10, so that when the bottom end of the feeding ring 10 is located inside the discharge pipe 4, the lithium cobalt oxide powder cannot be discharged downward along the spiral feeding trough 11, and the reverse rotation mechanism is driven The outer ring 5 and the inner ring 6 rotate in opposite directions. The inner ring 6 drives multiple scraper frames 7 to rotate synchronously when rotating. The scraper frames 7 and the inner wall of the filling drum 2 are slidably fitted to each other to scrape the inner wall of the filling drum 2, thereby reducing the adsorption and adhesion of the lithium cobalt oxide powder to the inner wall under the action of electrostatic adsorption. When the outer ring 5 and the inner ring 6 rotate in opposite directions, the first shear strip 8 and the second shear strip 9 rotate in opposite directions. The first shear strip 8 and the second shear strip 9 are vertically staggered and tilted in opposite directions. In the process of reverse rotation, the lithium cobalt oxide powder inside the filling drum 2 is sheared against each other, thereby breaking the agglomerated lithium cobalt oxide powder, effectively reducing the agglomeration of the lithium cobalt oxide powder and preventing the lithium cobalt oxide powder from agglomerating. The powder agglomeration causes blockage to the feed port. When the inner ring 6 rotates, the feed ring 10 is caused to rotate synchronously through the action of the synchronous rotation mechanism. The part of the spiral feed trough 11 located in the filling barrel 2 rotates synchronously, and the lithium cobalt oxide powder is spirally transported along the spiral feed trough 11, so that the lithium cobalt oxide powder moves along the spiral feed trough 11 to the bottom of the discharge pipe 4. When the lithium cobalt oxide powder loses the limit of the discharge pipe 4, it falls from the spiral feed trough 11 and is filled into the storage container under the action of gravity. The feed ring 10 is slidably limited by the sliding sleeve 12 during the rotation process. The ejector pin 14 is located below the discharge pipe 4 and rotates synchronously with the feed ring 10. The round pin 15 on the ejector pin 14 is rotated during the rotation process. The guide groove 17 on the circular plate 16 is used for guiding and limiting. When the circular pin 15 is located inside the arc segment 1701 of the guide groove 17, one end of the push pin 14 is located inside the spiral feeding groove 11 and fits with the inner wall of the spiral feeding groove 11, so that the spiral feeding groove 11 can perform normal spiral feeding. When the circular pin 15 moves from the arc segment 1701 to the raised segment 1702, one end of the push pin 14 extends outward from the spiral feeding groove 11 and pushes the lithium cobalt oxide powder in the spiral feeding groove 11 outward to ensure the normal falling of the lithium cobalt oxide powder, and prevent the lithium cobalt oxide powder from being adsorbed and adhered to the spiral feeding groove 11 when it moves to the bottom of the spiral feeding groove 11, effectively improving the transportation and filling efficiency of the lithium cobalt oxide powder. ;

[0023] As a further embodiment of the present invention, the reverse rotation mechanism includes a first fixed ring 18 and a second fixed ring 19, the first fixed ring 18 and the second fixed ring 19 are respectively fixedly connected to the top of the inner ring 6 and the outer ring 5, the first fixed ring 18 and the second fixed ring 19 are respectively fixedly connected to the adjacent sides with a first inner gear ring 20 and a second inner gear ring 21, the top of the filling barrel 2 is fixedly connected to two mounting frames 22, both mounting frames 22 are rotatably connected with matching gears 23, the two matching gears 23 are meshed with each other, the first inner gear ring 20 and the second inner gear ring 21 are respectively meshed with the corresponding matching gears 23, the first fixed ring 18 is fixedly connected with an outer gear ring 24, and the top of the filling barrel 2 is fixedly installed with a first motor 2 5, a driving gear 26 is fixedly connected to the output shaft of the first motor 25, and the driving gear 26 is meshed with the outer gear ring 24; when working, the output shaft of the first motor 25 rotates to drive the driving gear 26 to rotate, and through the meshing action between the driving gear 26 and the outer gear ring 24, the first fixed ring 18 drives the inner ring 6 to rotate, the first fixed ring 18 drives the first inner gear ring 20 to rotate, and drives the corresponding matching gear 23 to rotate through the meshing action, and through the mutual meshing of the two matching gears 23 and the meshing action between the second inner gear ring 21 and another matching gear 23, the second inner gear ring 21 drives the second fixed ring 19 to rotate in the opposite direction, so that the inner ring 6 and the outer ring 5 rotate in the opposite direction.

[0024] As a further implementation scheme of the present invention, the lifting mechanism includes a U-shaped frame 27, which is fixedly connected to the top of the filling barrel 2. A plurality of limit pins 28 are slidably inserted on the U-shaped frame 27, and the limit pins 28 are all fixedly connected to the sliding sleeve 12. A first hydraulic cylinder 29 is fixedly installed on the top of the U-shaped frame 27. The piston shaft of the first hydraulic cylinder 29 passes through the U-shaped frame 27 and extends to the inside of the U-shaped frame 27 and is fixedly connected to the axis center of the top of the sliding sleeve 12; when working, the piston shaft of the first hydraulic cylinder 29 moves downward, driving the sliding sleeve 12 to move vertically downward, and the sliding sleeve 12 is vertically limited by the sliding connection of the limit pins 28 and the U-shaped frame 27, so that the sliding sleeve 12 drives the feeding ring 10 to move downward synchronously.

[0025] As a further implementation scheme of the present invention, the synchronous rotation mechanism includes a strip groove 30 and a limit bar 31, the strip groove 30 is opened on the inner wall of the inner ring 6, the limit bar 31 is fixedly connected to the side of the feed ring 10, and the limit bar 31 is located inside the strip groove 30; when working, the strip groove 30 limits the limit bar 31, so that when the inner ring 6 rotates, it can drive the feed ring 10 to rotate synchronously, and when the feed ring 10 moves vertically, the limit bar 31 moves synchronously along the inside of the strip groove 30.

[0026] As a further embodiment of the present invention, a plurality of piezoelectric ceramic sheets 32 (such as Figure 5 As shown); when working, by installing the piezoelectric ceramic sheet 32 ​​on the first shear bar 8 and the second shear bar 9, when the first shear bar 8 and the second shear bar 9 are in contact with the lithium cobalt oxide powder and rotate to shear each other, the piezoelectric ceramic sheet 32 ​​is in contact with the lithium cobalt oxide powder and generates reverse charge, thereby offsetting the friction static electricity of the powder and reducing the electrostatic adsorption phenomenon generated by the lithium cobalt oxide powder during the filling process.

[0027] As a further embodiment of the present invention, the bottom end of the discharge pipe 4 is fixedly connected to a baffle 33, the top of the conveying frame 1 is provided with a storage shell 34, the top of the storage shell 34 is fixedly connected to a sealing cover 35, and a filling hole 36 (such as Fig. 9 As shown in the figure, two sealing plates 37 are arranged at the bottom of the filling hole 36, a second hydraulic cylinder 38 is fixedly installed on the conveying frame 1, a weighing device 39 is fixedly connected to the top of the piston shaft of the second hydraulic cylinder 38, a movable opening and closing mechanism is connected to the sealing plate 37, and a one-way conveying mechanism is connected to the conveying frame 1; during operation, the storage shell 34 is transported one-way along the top of the conveying frame 1 by the action of the one-way conveying mechanism, and when the storage shell 34 moves between the baffle 33 and the weighing device 39, the weighing device 39 is driven to move upward by the movement of the piston shaft of the second hydraulic cylinder 38, and the bottom of the storage shell 34 is supported and then moved upward, so that the sealing cover 35 on the top of the storage shell 34 moves close to the bottom of the baffle 33, and in the process of the sealing cover 35 moving upward, the two sealing plates 37 are moved away from each other and the filling hole 36 is opened by the action of the movable opening and closing mechanism, so that after the sealing cover 35 contacts the bottom of the baffle 33, the bottom end of the feeding ring 10 moves vertically downward and enters the storage along the filling hole 36 The storage shell 34 is filled with lithium cobalt oxide powder along the spiral feeding trough 11 through the rotation of the feeding ring 10, and the storage shell 34 is weighed by the weighing device 39 during the filling process. When the weighing value of the weighing device 39 reaches the set value, the controller connected to the weighing device 39 controls the feeding ring 10 to return to the initial position, and moves the piston shaft of the second hydraulic cylinder 38 in the opposite direction, so that the storage shell 34 and the sealing cover 35 move downward and return to the initial position, and in the process of returning, the sealing plate 37 re-seals the filling hole 36, and the filled storage shell 34 is continued to be unidirectionally conveyed through the action of the one-way conveying mechanism. Through the vertical contact between the sealing cover 35 and the baffle 33 and the movable opening and closing of the filling hole 36, the dust emission generated by the lithium cobalt oxide powder during the filling process is effectively reduced, and the sealing of the lithium cobalt oxide powder during the filling process is improved, thereby reducing the toxic volatilization of the lithium cobalt oxide powder during the filling and storage process, and reducing the pollution of the toxicity of the lithium cobalt oxide powder to the staff and the environment.

[0028] As a further embodiment of the present invention, the one-way conveying mechanism includes a plurality of connecting short shafts 40, which are rotatably connected to both sides of the conveying frame 1, and the plurality of connecting short shafts 40 are respectively located on both sides above the weighing device 39. The connecting short shafts 40 are fixedly connected with conveying short rollers 41. The conveying frame 1 is rotatably connected with a plurality of connecting long shafts 42, and the connecting long shafts 42 are fixedly connected with conveying long rollers 43. One end of the connecting short shafts 40 and both ends of the conveying long rollers 43 are fixedly connected with driving gears 44. Both sides of the conveying frame 1 are rotatably connected with a plurality of driven gears 45, and the driven gears 45 are meshed with two adjacent driving gears 44. A second motor 46 is fixedly installed on the conveying frame 1, and the output shaft of the second motor 46 is fixedly connected to one end of the corresponding connecting long shaft 42. When working, the output shaft of the second motor 46 rotates to drive The corresponding connecting long shaft 42 rotates, so that the driving gears 44 at both ends of the connecting long shaft 42 rotate synchronously, and through the meshing action of the driving gear 44 and the driven gear 45, all the connecting long shafts 42 and the connecting short shafts 40 rotate in the same direction, thereby driving the conveying long rollers 43 and the conveying short rollers 41 to rotate synchronously, and the storage shell 34 is transported unidirectionally. When the storage shell 34 moves to the top of the conveying short roller 41 and is located directly above the weighing device 39, the second motor 46 stops working, and lifts the storage shell 34 and weighs it through the vertical movement of the weighing device 39. When the lithium cobalt oxide powder is filled, the weighing device 39 is lowered by the reverse movement of the second hydraulic cylinder 38, and the storage shell 34 is re-located on the top of multiple conveying short rollers 41, and then the storage shell 34 is continued to be transported unidirectionally through the output shaft rotation of the second motor 46.

[0029] As a further embodiment of the present invention, the movable opening and closing mechanism includes two limit frames 47, which are respectively located on both sides of the sealing cover 35. Two sliding rods 48 are fixedly connected to the limit frames 47. One end of the sliding rod 48 passes through the sealing cover 35 and extends to the inside of the sealing cover 35 and is fixedly connected to the corresponding sealing plate 37. A spring 49 is sleeved on the sliding rod 48, and the spring 49 is fixedly connected between the sealing cover 35 and the corresponding sealing plate 37. The bottom of the baffle 33 is fixedly connected with two wedge blocks 50 (such as Figure 3As shown); during operation, when the storage shell 34 is lifted and moved upward by the weighing device 39, the sealing cover 35 is driven to rise synchronously, and the limit frames 47 on both sides of the sealing cover 35 are driven to rise synchronously and contact with the corresponding wedge blocks 50, and the two limit frames 47 are guided by the inclined surface of the wedge blocks 50 to move away from each other, and drive the sliding rod 48 to move along the penetration, and at the same time squeeze the spring 49 to produce compression deformation, so that the two sealing plates 37 are moved away from each other and the filling hole 36 is opened. When the storage shell 34 is filled and moves downward, the limit frames 47 move in the opposite direction along the inclined surface of the wedge blocks 50, and the two sealing plates 37 are brought close to each other through the elastic stretching effect of the spring 49, so as to seal the filling hole 36, effectively reduce the escape of lithium cobalt oxide powder, and improve the sealing during the filling process.

[0030] As a further implementation scheme of the present invention, guide frames 51 are fixedly connected to both sides of the interior of the conveying frame 1, and the two guide frames 51 are located on both sides above the weighing device 39; when working, the storage shell 34 is centered during the moving conveying process through the limiting effect of the guide frame 51, thereby improving the docking accuracy of the filling hole 36 and the feeding ring 10.

[0031] As a further embodiment of the present invention, the two guide frames 51 are provided with circular holes 52 (such as Fig.12 As shown in the figure, a laser emitter 53 and a laser receiver 54 are fixedly installed on the side of the two guide frames 51 away from each other, and the circular holes 52 are located between the laser emitter 53 and the laser receiver 54; when working, the laser signal emitted by the laser emitter 53 passes through the circular hole 52 and is received by the laser receiver 54. When the storage shell 34 moves to the top of the weighing device 39, one side of the storage shell 34 is located between the laser emitter 53 and the laser receiver 54, and blocks the laser signal. The controller connected to the laser receiver 54 controls the second motor 46 to stop working, thereby stopping the one-way transportation of the storage shell 34. The controller connected to the laser receiver 54 also controls the second motor 46 to stop working, thereby stopping the one-way transportation of the storage shell 34. The controller is electrically connected to the second hydraulic cylinder 38 and the weighing device 39. When the second motor 46 is suspended, the controller synchronously controls the piston shaft of the second hydraulic cylinder 38 to drive the weighing device 39 to rise. After the weighing weight of the weighing device 39 reaches the set value, the controller controls the second hydraulic cylinder 38 to return to the initial position and controls the second motor 46 to continue working, so that the storage shell 34 continues to carry out one-way transportation, and the second motor 46 continues to work when the storage shell 34 passes between the laser transmitter 53 and the laser receiver 54, until the laser signal reception of the laser receiver 54 is interrupted again, the second motor 46 is suspended again, and the above process is repeated to continuously fill the lithium cobalt oxide powder.

[0032] Working principle of the present invention: The lithium cobalt oxide powder is conveyed to the inside of the filling drum 2 along the feed pipe 3, and the storage container is placed on the top of the conveying frame 1 and below the discharge pipe 4. The sliding sleeve 12 is driven to move vertically downward by the action of the lifting mechanism, thereby driving the feeding ring 10 to move vertically downward along the sliding connection between the inner ring 6 and the discharge pipe 4, and moving part of the spiral feeding trough 11 to the bottom of the discharge pipe 4. The spiral feeding trough 11 and the bottom end of the feeding ring 10 are not connected. Therefore, when the bottom end of the feeding ring 10 is located inside the discharge pipe 4, the lithium cobalt oxide powder cannot be discharged downward along the spiral feeding trough 11. The outer ring 5 and the inner ring 6 are driven to rotate in the opposite direction by the action of the reverse rotation mechanism, and the inner ring 6 rotates in the opposite direction. When the ring 6 rotates, it drives multiple scraper frames 7 to rotate synchronously, and through the sliding fit between the scraper frame 7 and the inner wall of the filling drum 2, the inner wall of the filling drum 2 is scraped in rotation, thereby reducing the adsorption and adhesion of the lithium cobalt oxide powder to the inner wall under the action of electrostatic adsorption, and when the outer ring 5 and the inner ring 6 rotate in the opposite direction, the first shear bar 8 and the second shear bar 9 rotate in the opposite direction, and the first shear bar 8 and the second shear bar 9 are vertically staggered and inclined in opposite directions. In the process of reverse rotation, the lithium cobalt oxide powder inside the filling drum 2 is sheared against each other, thereby breaking up the agglomerated lithium cobalt oxide powder, effectively reducing the agglomeration of the lithium cobalt oxide powder, and preventing the agglomeration of the lithium cobalt oxide powder from clogging the feed port. When the inner ring 6 rotates, the feeding ring 10 is synchronously rotated by the action of the synchronous rotation mechanism, and the part of the spiral feeding trough 11 located in the filling barrel 2 is synchronously rotated, and the lithium cobalt oxide powder is spirally conveyed along the spiral feeding trough 11, so that the lithium cobalt oxide powder moves along the spiral feeding trough 11 to the bottom of the discharge pipe 4. When the lithium cobalt oxide powder loses the limit of the discharge pipe 4, it falls from the spiral feeding trough 11 and is filled into the storage container under the action of gravity. The feeding ring 10 is slidably limited by the sliding sleeve 12 during the rotation process, and the ejecting pin 14 is located below the discharge pipe 4 and rotates synchronously with the feeding ring 10. The circular pin 15 on the ejecting pin 14 passes through the circular disk 16 during the rotation process. The guide groove 17 on the guide groove 17 is used for guiding and limiting. When the circular pin 15 is located inside the arc segment 1701 of the guide groove 17, one end of the pushing pin 14 is located inside the spiral feed trough 11 and fits against the inner wall of the spiral feed trough 11, so that the spiral feed trough 11 can perform normal spiral feeding. When the circular pin 15 moves from the arc segment 1701 to the raised segment 1702, one end of the pushing pin 14 extends outward from the spiral feed trough 11 and pushes the lithium cobalt oxide powder in the spiral feed trough 11 outward, ensuring the normal falling of the lithium cobalt oxide powder and preventing the lithium cobalt oxide powder from being adsorbed and adhered to the spiral feed trough 11 when it moves to the bottom of the spiral feed trough 11, thereby effectively improving the conveying and filling efficiency of the lithium cobalt oxide powder.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A material filling device for producing positive electrode materials for batteries, comprising a conveyor frame, characterized in that: A filling barrel is fixedly connected to the top of the conveying frame, a feeding pipe is fixedly connected to the top of the filling barrel, and a discharging pipe is fixedly connected to the axis of the bottom of the filling barrel; The top of the filling drum is rotatably connected to an outer ring, the inner part of the outer ring is rotatably connected to an inner ring, the surface of the outer ring is fixedly connected to a plurality of scraper frames along the circumferential direction, the scraper frames and the inner wall of the filling drum are slidably fitted, the scraper frames are fixedly connected to a plurality of first shear strips, the surface of the inner ring is fixedly connected to a plurality of second shear strips along the circumferential direction, and a reverse rotation mechanism is connected between the outer ring and the inner ring; A feeding ring is slidably inserted inside the discharge pipe and the inner ring, a spiral feeding trough is provided on the feeding ring, a synchronous rotation mechanism is connected between the inner ring and the feeding ring, a sliding sleeve is rotatably connected to the top of the feeding ring, a lifting mechanism is connected to the sliding sleeve, a circular rod is provided inside the feeding ring, the circular rod is fixedly connected to the sliding sleeve, a pushing pin is provided at the lower part of the feeding ring, one end of the pushing pin passes through the feeding ring and extends to the inside of the spiral feeding trough, the other end of the pushing pin is fixedly connected to a circular pin, two circular disks are fixedly connected to the circular rod, guide grooves are provided on adjacent sides of the two circular disks, two ends of the circular pin are respectively located in the corresponding guide grooves, and the guide grooves include arc sections and convex sections.

2. A material filling device for producing positive electrode materials for batteries according to claim 1, characterized in that: The reverse rotation mechanism includes a first fixed ring and a second fixed ring, which are fixedly connected to the top of the inner ring and the outer ring respectively, and the first and second fixed rings are fixedly connected to the adjacent sides of the first and second fixed rings respectively with the first inner gear ring and the second inner gear ring, and the top of the filling barrel is fixedly connected to two mounting frames, and the two mounting frames are rotatably connected with matching gears, and the two matching gears are meshed with each other, and the first inner gear ring and the second inner gear ring are respectively meshed with the corresponding matching gears, and the first fixed ring is fixedly connected with the outer gear ring, and the top of the filling barrel is fixedly installed with a first motor, and the output shaft of the first motor is fixedly connected with a driving gear, and the driving gear and the outer gear ring are meshed.

3. A material filling device for producing positive electrode materials for batteries according to claim 1, characterized in that: The lifting mechanism includes a U-shaped frame, which is fixedly connected to the top of the filling drum. A plurality of limit pins are slidably inserted on the U-shaped frame, and the limit pins are fixedly connected to the sliding sleeve. A first hydraulic cylinder is fixedly installed on the top of the U-shaped frame. The piston shaft of the first hydraulic cylinder passes through the U-shaped frame and extends to the inside of the U-shaped frame and is fixedly connected to the axis center of the top of the sliding sleeve.

4. A material filling device for producing positive electrode materials for batteries according to claim 1, characterized in that: The synchronous rotation mechanism comprises a strip groove and a limit strip, wherein the strip groove is arranged on the inner wall of the inner ring, the limit strip is fixedly connected to the side surface of the feeding ring, and the limit strip is located inside the strip groove.

5. A material filling device for producing positive electrode materials for batteries according to claim 1, characterized in that: A plurality of piezoelectric ceramic sheets are fixedly mounted on the top of the first shear bar and the second shear bar.

6. A material filling device for producing positive electrode materials for batteries according to claim 1, characterized in that: The bottom end of the discharge pipe is fixedly connected to a baffle, the top of the conveying frame is provided with a storage shell, the top of the storage shell is fixedly connected to a sealing cover, a filling hole is opened at the center of the sealing cover, and two sealing plates are arranged at the bottom of the filling hole. A second hydraulic cylinder is fixedly installed on the conveying frame, the top of the piston shaft of the second hydraulic cylinder is fixedly connected to a weighing machine, a movable opening and closing mechanism is connected to the sealing plate, and the conveying frame is connected to a one-way conveying mechanism.

7. A material filling device for producing positive electrode materials for batteries according to claim 6, characterized in that: The one-way conveying mechanism includes multiple connecting short shafts, which are rotatably connected to both sides of the conveying frame. The multiple connecting short shafts are respectively located on both sides above the weighing device. The connecting short shafts are fixedly connected with short conveying rollers. The conveying frame is rotatably connected with multiple connecting long shafts, which are fixedly connected with long conveying rollers. One end of the connecting short shafts and both ends of the long conveying rollers are fixedly connected with driving gears. Both sides of the conveying frame are rotatably connected with multiple driven gears, and the driven gears are meshed with two adjacent driving gears. A second motor is fixedly installed on the conveying frame, and the output shaft of the second motor is fixedly connected to one end of the corresponding connecting long shaft.

8. A material filling device for producing positive electrode materials for batteries according to claim 6, characterized in that: The movable opening and closing mechanism includes two limit frames, which are respectively located on both sides of the sealing cover. Two sliding rods are fixedly connected to the limit frames. One end of the sliding rod passes through the sealing cover and extends to the inside of the sealing cover and is fixedly connected to the corresponding sealing plate. Springs are sleeved on the sliding rods, which are fixedly connected between the sealing cover and the corresponding sealing plate. Two wedge blocks are fixedly connected to the bottom of the baffle.

9. A material filling device for producing positive electrode materials for batteries according to claim 7, characterized in that: Both sides of the conveying frame are fixedly connected with guide frames, and the two guide frames are located on both sides above the weighing device.

10. A material filling device for producing positive electrode materials for batteries according to claim 9, characterized in that: Circular holes are provided on the two guide frames. A laser transmitter and a laser receiver are fixedly installed on the sides of the two guide frames away from each other, and the circular holes are located between the laser transmitter and the laser receiver.

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