Material filling device for battery cathode material production

Abstract

The application 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 above the conveying frame, a feeding pipe is fixedly connected to the top of the filling barrel, an outer ring is rotationally connected to the top of the filling barrel, an inner ring is rotationally connected to the inside of the outer ring, and a plurality of material scraping frames are fixedly connected to the surface of the outer ring in the circumferential direction; the inner wall of the filling barrel is scraped by the material scraping frames and the sliding fit of the inner wall of the filling barrel, so that the adsorption adhesion of lithium cobaltate powder to the inner wall under the action of electrostatic adsorption is reduced, when the outer ring and the inner ring rotate in opposite directions, the first shear strip and the second shear strip rotate in opposite directions, so that the agglomerated lithium cobaltate powder is crushed, and the agglomeration of the lithium cobaltate powder is effectively reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of lithium battery production, and in particular to a material filling device for battery positive electrode material production. BACKGROUND

[0002] Lithium cobaltate is one of the most common positive electrode materials in commercial lithium ion batteries, responsible for storing and releasing energy through the embedding and stripping of lithium ions during charging and discharging; the crystal structure of lithium cobaltate is a layered oxide, and lithium ions can migrate rapidly between layers to ensure efficient electrochemical reactions.

[0003] The patent file with the publication number CN214254492U discloses a material filling device for lithium ion battery positive electrode material production, which comprises a base, a clamping cover is fixedly installed on one side of the top of the base, and a filling pipe is clamped in the clamping cover, a moving seat is slidingly connected to the top of the base, a discharge hole is formed in the moving seat, a clamping pipe in communication with the discharge hole is fixedly installed on the top of one side of the moving seat.

[0004] After the preparation of lithium cobaltate powder is completed, the lithium cobaltate powder needs to be filled into a container for storage. In the prior art, a feeding screw is usually used to screw convey the lithium cobaltate powder during filling. However, in the actual filling process, the lithium cobaltate powder material is easily agglomerated due to electrostatic adsorption and is adsorbed with the equipment, is easily adhered to the inner wall of the filling equipment and blocks the feeding port, thereby reducing the filling efficiency of the lithium cobaltate powder. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the prior art and provide a material filling device for battery positive electrode material production.

[0006] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a material filling device for battery positive electrode material production, comprising a conveying frame, a filling barrel is fixedly connected above the conveying frame, a feeding pipe is fixedly communicated with the top of the filling barrel, and a discharge pipe is fixedly communicated with the shaft center at the bottom of the filling barrel.

[0007] A outer ring is rotatably connected to the top of the filling barrel, an inner ring is rotatably connected inside the outer ring, a plurality of scraping frames are fixedly connected to the surface of the outer ring in the circumferential direction, the scraping frames and the inner wall of the filling barrel are in sliding fit, a plurality of first shear strips are fixedly connected inside the scraping frames, a plurality of second shear strips are fixedly connected to the surface of the inner ring in the circumferential direction, and a reverse rotation mechanism is connected between the outer ring and the inner ring.

[0008] The discharge pipe and the inner circular ring are jointly and slidingly provided with a material conveying circular ring, a spiral material conveying groove is formed in the material conveying circular ring, a synchronous rotating mechanism is connected between the inner circular ring and the material conveying circular ring, a sliding sleeve is rotatably connected to the top of the material conveying circular ring, a lifting mechanism is connected to the sliding sleeve, a circular rod is arranged in the material conveying circular ring, the circular rod is fixedly connected to the sliding sleeve, a knock pin is arranged below the material conveying circular ring, one end of the knock pin penetrates through the material conveying circular ring and extends into the spiral material conveying groove, the other end of the knock pin is fixedly connected with a circular pin, two circular discs are fixedly connected to the circular rod, guide grooves are formed in the adjacent sides of the two circular discs, and the two ends of the circular pin are located in the corresponding guide grooves.

[0009] Preferably, the reverse rotating mechanism comprises a first fixed ring and a second fixed ring, the first fixed ring and the second fixed ring are fixedly connected to the top ends of the inner circular ring and the outer circular ring respectively, first and second inner tooth rings are fixedly connected to the adjacent sides of the first and second fixed rings respectively, two mounting frames are fixedly connected to the top of the filling barrel, matching gears are rotatably connected to the two mounting frames, the first and second inner tooth rings are engaged with the corresponding matching gears respectively, an outer tooth ring is fixedly connected to the first fixed ring, a first motor is fixedly installed on the top of the filling barrel, a drive gear is fixedly connected to the output shaft of the first motor, and the drive gear is engaged with the outer tooth ring.

[0010] Preferably, the lifting mechanism comprises a U-shaped frame, the U-shaped frame is fixedly connected to the top of the filling barrel, a plurality of limiting pins are slidingly arranged on the U-shaped frame, the limiting 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 penetrates through the U-shaped frame and extends into the U-shaped frame and is fixedly connected to the shaft center of the top of the sliding sleeve.

[0011] Preferably, the synchronous rotating mechanism comprises a strip-shaped groove and a limiting strip, the strip-shaped groove is formed in the inner wall of the inner circular ring, and the limiting strip is fixedly connected to the side face of the material conveying circular ring and located in the strip-shaped groove.

[0012] Preferably, a plurality of piezoelectric ceramic pieces are fixedly installed on the top of each of the first and second shear strips.

[0013] Preferably, the bottom end of the discharge pipe is fixedly connected with a baffle, the top of the conveying frame is provided with a storage shell, the top of the storage shell is fixedly connected with a sealing cover, a filling hole is formed in the center of the sealing cover, the bottom of the filling hole is provided with two sealing plates, 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 with a weigher, the sealing plates are connected with a movable opening and closing mechanism, and the conveying frame is connected with a one-way conveying mechanism.

[0014] Preferably, the one-way conveying mechanism comprises a plurality of connecting short shafts rotatably connected to the two sides in the conveying frame, a plurality of the connecting short shafts are respectively located on the two sides above the weigher, the connecting short shafts are all fixedly connected with conveying short rollers, a plurality of connecting long shafts are rotatably connected in the conveying frame, the connecting long shafts are all fixedly connected with conveying long rollers, one end of the connecting short shafts and two ends of the conveying long rollers are all fixedly connected with driving gears, a plurality of driven gears are rotatably connected to the two sides of the conveying frame, the driven gears are all engaged with adjacent two 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.

[0015] Preferably, the movable opening and closing mechanism comprises two limiting frames, the two limiting frames are respectively located on the two sides of the sealing cover, the limiting frames are all fixedly connected with two sliding rods, one end of the sliding rods all penetrates through the sealing cover and extends to the inside of the sealing cover and is then fixedly connected to the corresponding sealing plate, springs are all sleeved on the sliding rods, and the springs are fixedly connected between the sealing cover and the corresponding sealing plate, and the bottom of the baffle is fixedly connected with two wedge blocks.

[0016] Preferably, the two sides in the conveying frame are all fixedly connected with guide frames, and the two guide frames are located on the two sides above the weigher.

[0017] Preferably, circular holes are all formed in the two guide frames, a laser emitter and a laser receiver are respectively fixedly installed on the sides away from each other of the two guide frames, and the circular holes are all located between the laser emitter and the laser receiver.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1. The application is a rotating scraping device for the inner wall of a filling barrel, which comprises a scraping frame and a sliding fit filling barrel inner wall, and the inner wall of the filling barrel is scraped by the scraping frame and the sliding fit filling barrel inner wall, thereby reducing the adsorption and adhesion of 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 opposite directions, the first shear strip and the second shear strip rotate in opposite directions, the first shear strip and the second shear strip are perpendicular to the cross device and the inclined directions are opposite, and the lithium cobalt oxide powder in the filling barrel is sheared during the reverse rotation, thereby breaking the agglomerated lithium cobalt oxide powder and effectively reducing the agglomeration of lithium cobalt oxide powder, preventing the agglomeration of lithium cobalt oxide powder from blocking the material inlet.

[0020] 2. When the circular pin is located inside the arc segment of the guide groove, one end of the ejector pin is located inside the spiral feeding groove and fits with the inner wall of the spiral feeding groove, allowing the spiral feeding groove to perform normal spiral feeding, and when the circular pin moves from the arc segment to the raised segment, one end of the ejector pin extends outward from the spiral feeding groove and ejects the lithium cobalt oxide powder in the spiral feeding groove outward, ensuring normal discharging of the lithium cobalt oxide powder and preventing the lithium cobalt oxide powder from being adsorbed and adhered in the spiral feeding groove when it moves to the bottom of the spiral feeding groove, effectively improving the filling efficiency of the lithium cobalt oxide powder.

[0021] 3. The piston shaft of the second hydraulic cylinder moves in the opposite direction, causing the storage shell and the sealing cover to move downward and return to the initial position, and the sealing plate re-seals the filling hole during the return process, and the filled storage shell is continuously transported in one direction by the one-way transport mechanism, the vertical contact of the sealing cover and the baffle, and the opening and closing of the filling hole, effectively reducing the dust dispersion of lithium cobalt oxide powder during the filling process, improving the sealing performance of lithium cobalt oxide powder during the filling process, thereby reducing the toxic evaporation of lithium cobalt oxide powder during the filling and storage process, and reducing the pollution of lithium cobalt oxide powder toxicity to workers and the environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure of the application is shown in the figure;

[0023] Figure 2 The structure of the application is shown in the figure; Figure 1

[0024] Figure 3 The structure of the application is shown in the figure; Figure 1

[0025] Figure 4 The filling barrel, outer ring, inner ring and material feeding ring of the application are shown in the figure (the filling barrel is cut);

[0026] Figure 5 The structure of the application is shown in the figure; Figure 4

[0027] ​​​Figure 6 Schematic diagram of the cooperation structure of the material conveying ring, sliding sleeve and circular rod of the application (the material conveying ring is cut open);

[0028] Figure 7 Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 6 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application

[0029] ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 8 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application

[0030] ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 9 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 8 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application

[0031] ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 10 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application

[0032] ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 11 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 10 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application

[0033] ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 12 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application Figure 10 ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application ; Schematic diagram of the cooperation structure of the storage shell and sealing cover of the application

[0034] ; In the figure: 1, conveying frame; 2, filling barrel; 3, feeding pipe; 4, discharging pipe; 5, outer ring; 6, inner ring; 7, scraping frame; 8, first shear strip; 9, second shear strip; 10, material conveying ring; 11, spiral material conveying groove; 12, sliding sleeve; 13, circular rod; 14, jacking pin; 15, circular pin; 16, circular disc; 17, guide groove; 1701, circular arc segment; 1702, protruding segment; 18, first fixed ring; 19, second fixed ring; 20, first inner tooth ring; 21, second inner tooth ring; 22, mounting frame; 23, cooperation gear; 24, outer tooth ring; 25, first motor; 26, driving gear; 27, U-shaped frame; 28, limiting pin; 29, first hydraulic cylinder; 30, strip-shaped groove; 31, limiting 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 device; 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-shaped block; 51, guide frame; 52, circular hole; 53, laser emitter; 54, laser receiver. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present application to enable a person skilled in the art to implement the present application. The preferred embodiments in the following description are only as examples, and other obvious modifications can be made by those skilled in the art.

[0036] As Figures 1 to 12 The application discloses a battery positive electrode material production material filling device, which comprises a conveying frame 1, a filling barrel 2 fixedly connected above the conveying frame 1, a feeding pipe 3 fixedly connected to the top of the filling barrel 2, and a discharging pipe 4 fixedly connected to the axis of the bottom of the filling barrel 2.

[0037] The top of the filling barrel 2 is rotationally connected with an outer ring 5, the inner part of the outer ring 5 is rotationally connected with an inner ring 6, the surface of the outer ring 5 is fixedly connected with a plurality of scraping frames 7 along the circumference, the scraping frames 7 are in sliding fit with the inner wall of the filling barrel 2, the inner part of the scraping frames 7 is fixedly connected with a plurality of first shearing strips 8, the surface of the inner ring 6 is fixedly connected with a plurality of second shearing strips 9 along the circumference, and the outer ring 5 and the inner ring 6 are connected with a reverse rotation mechanism.

[0038] The discharging pipe 4 and the inner ring 6 are jointly and slidably inserted with a feeding ring 10, the feeding ring 10 is provided with a spiral feeding groove 11, the inner ring 6 and the feeding ring 10 are connected with a synchronous rotation mechanism, the top of the feeding ring 10 is rotationally connected with a sliding sleeve 12, the sliding sleeve 12 is connected with a lifting mechanism, the inner part of the feeding ring 10 is provided with a circular rod 13 fixedly connected with the sliding sleeve 12, the lower part of the inner part of the feeding ring 10 is provided with a jacking pin 14, one end of the jacking pin 14 penetrates through the feeding ring 10 and extends into the spiral feeding groove 11, the other end of the jacking pin 14 is fixedly connected with a circular pin 15, the circular rod 13 is fixedly connected with two circular discs 16, the adjacent side of the two circular discs 16 is provided with a guide groove 17 (as Figure 7As shown in the drawing, two ends of the circular pin 15 are respectively located inside the corresponding guide slot 17, the guide slot 17 comprises an arc segment 1701 and a convex segment 1702; in work, after the preparation of the lithium cobaltate powder is completed, the lithium cobaltate powder needs to be filled into the container for storage, and in the prior art, the lithium cobaltate powder is usually spirally conveyed by using a feeding screw during filling, but in the actual filling process, the lithium cobaltate powder material is easy to be agglomerated due to electrostatic adsorption and to be adsorbed with the equipment, and is easy to be adhered to the inner wall of the filling equipment and to block the feeding port, thereby reducing the filling efficiency of the lithium cobaltate powder;The technical scheme can solve the above problems, and the specific working mode is as follows: the lithium cobaltate powder is conveyed along the feeding pipe 3 to the inside of the filling barrel 2, and the storage container is placed on the top of the conveying frame 1 and below the discharging pipe 4, the sliding sleeve 12 is driven to move vertically downward by the lifting mechanism, thereby driving the feeding ring 10 to move vertically downward along the sliding insertion part of the inner ring 6 and the discharging pipe 4, and part of the spiral feeding groove 11 moves below the discharging pipe 4, the bottom end of the spiral feeding groove 11 and the feeding ring 10 is not connected, so that when the bottom end of the feeding ring 10 is located inside the discharging pipe 4, the lithium cobaltate powder cannot be discharged downward along the spiral feeding groove 11, the outer ring 5 and the inner ring 6 are driven to rotate reversely by the reverse rotating mechanism, the inner ring 6 drives the plurality of scraping frames 7 to rotate synchronously when rotating, and the inner wall of the filling barrel 2 is scraped by the sliding fit of the scraping frame 7 and the filling barrel 2, thereby reducing the adsorption and adhesion of the lithium cobaltate powder to the inner wall under the action of electrostatic adsorption, and when the outer ring 5 and the inner ring 6 rotate reversely, the first shear strip 8 and the second shear strip 9 rotate reversely, the first shear strip 8 and the second shear strip 9 are perpendicular to each other and the inclined directions are opposite, and the lithium cobaltate powder in the filling barrel 2 is sheared during the reverse rotation, thereby crushing the caked lithium cobaltate powder, effectively reducing the caking phenomenon of the lithium cobaltate powder, and preventing the caking of the lithium cobaltate powder from causing blockage of the feeding port, the feeding ring 10 is driven to rotate synchronously by the synchronous rotating mechanism when the inner ring 6 rotates, part of the spiral feeding groove 11 in the filling barrel 2 rotates synchronously, and the lithium cobaltate powder is conveyed along the spiral feeding groove 11, so that the lithium cobaltate powder moves along the spiral feeding groove 11 to below the discharging pipe 4, and falls from the spiral feeding groove 11 when the lithium cobaltate powder loses the limitation of the discharging pipe 4, and is filled into the storage container under the action of gravity, the feeding ring 10 is limited by the sliding sleeve 12 during rotation, the ejector pin 14 below the discharging pipe 4 rotates synchronously with the feeding ring 10, the circular pin 15 on the ejector pin 14 is guided and limited by the guide groove 17 on the circular disc 16 during rotation, when the circular pin 15 is located inside the arc segment 1701 of the guide groove 17, one end of the ejector pin 14 is located inside the spiral feeding groove 11 and abuts against the inner wall of the spiral feeding groove 11, so that the spiral feeding groove 11 normally feeds, when the circular pin 15 moves from the arc segment 1701 to the convex segment 1702, one end of the ejector pin 14 extends outward from the spiral feeding groove 11, and the lithium cobaltate powder in the spiral feeding groove 11 is ejected outward, so as to ensure normal feeding of the lithium cobaltate powder, prevent the lithium cobaltate powder from being adsorbed and adhered in the spiral feeding groove 11 when moving to the bottom of the spiral feeding groove 11, and effectively improve the conveying and filling efficiency of the lithium cobaltate powder.

[0039] As a further implementation of the present application, the reverse rotation mechanism comprises a first fixed ring 18 and a second fixed ring 19, which are fixedly connected to the top of the inner ring 6 and the outer ring 5 respectively, and a first inner gear ring 20 and a second inner gear ring 21 are fixedly connected to the adjacent side of the first fixed ring 18 and the second fixed ring 19 respectively, and two mounting racks 22 are fixedly connected to the top of the filling barrel 2, and two matching gears 23 are rotatably connected to the two mounting racks 22, the two matching gears 23 are meshed with each other, the first inner gear ring 20 and the second inner gear ring 21 are meshed with the corresponding matching gears 23 respectively, and an outer gear ring 24 is fixedly connected to the first fixed ring 18, a first motor 25 is fixedly installed on the top of the filling barrel 2, a drive gear 26 is fixedly connected to the output shaft of the first motor 25, and the drive gear 26 is meshed with the outer gear ring 24; during operation, the output shaft of the first motor 25 drives the drive gear 26 to rotate, and the meshing between the drive gear 26 and the outer gear ring 24 drives the first fixed ring 18 to rotate, and the first fixed ring 18 drives the first inner gear ring 20 to rotate, and the meshing drives the corresponding matching gear 23 to rotate, and the meshing between the second inner gear ring 21 and the other matching gear 23 and the meshing of the two matching gears 23 drive the second inner gear ring 21 to drive 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.

[0040] As a further implementation of the present application, the lifting mechanism comprises a U-shaped frame 27, which is fixedly connected to the top of the filling barrel 2, a plurality of limiting pins 28 are slidably inserted into the U-shaped frame 27, the limiting pins 28 are fixedly connected to the sliding sleeve 12, a first hydraulic cylinder 29 is fixedly installed on the top of the U-shaped frame 27, and the piston shaft of the first hydraulic cylinder 29 penetrates through the U-shaped frame 27 and extends to the inside of the U-shaped frame 27 and is fixedly connected to the shaft center on the top of the sliding sleeve 12; during operation, the piston shaft of the first hydraulic cylinder 29 moves downward, drives the sliding sleeve 12 to move vertically downward, and the sliding sleeve 12 is vertically limited by the sliding insertion of the limiting pins 28 and the U-shaped frame 27, so that the sliding sleeve 12 drives the material feeding ring 10 to move downward synchronously.

[0041] As a further implementation of the present application, the synchronous rotation mechanism comprises a strip-shaped groove 30 and a limiting strip 31, the strip-shaped groove 30 is formed in the inner wall of the inner ring 6, and the limiting strip 31 is fixedly connected to the side of the material feeding ring 10 and located in the inside of the strip-shaped groove 30; during operation, the limiting action of the strip-shaped groove 30 on the limiting strip 31 enables the inner ring 6 to drive the material feeding ring 10 to rotate synchronously when the inner ring 6 rotates, and the limiting strip 31 moves synchronously along the inside of the strip-shaped groove 30 when the material feeding ring 10 moves vertically.

[0042] As a further embodiment of the present application, the top of the first shear strip 8 and the second shear strip 9 are fixedly installed with a plurality of piezoelectric ceramic sheets 32 (as shown in Figure 5 When the piezoelectric ceramic sheets 32 are in contact with the lithium cobalt oxide powder and generate reverse charges when the first shear strip 8 and the second shear strip 9 are in contact with the lithium cobalt oxide powder and rotate to shear each other, the powder friction static electricity is offset, and the electrostatic adsorption phenomenon generated during the filling process of the lithium cobalt oxide powder is reduced.

[0043] As a further embodiment of the present application, the bottom end of the discharge pipe 4 is fixedly connected with a baffle 33, the top of the conveying frame 1 is provided with a storage housing 34, the top of the storage housing 34 is fixedly connected with a sealing cover 35, the center of the sealing cover 35 is provided with a filling hole 36 (as shown in Figure 9 The bottom of the filling hole 36 is provided with two sealing plates 37, the conveying frame 1 is fixedly installed with a second hydraulic cylinder 38, the piston shaft of the second hydraulic cylinder 38 is fixedly connected with a weighter 39, the sealing plates 37 are connected with a movable opening and closing mechanism, and the conveying frame 1 is connected with a one-way conveying mechanism; When the one-way conveying mechanism is used to convey the storage housing 34 along the top of the conveying frame 1 in one direction, and when the storage housing 34 moves between the baffle 33 and the weighter 39, the piston shaft of the second hydraulic cylinder 38 moves to drive the weighter 39 to move upward and support the bottom of the storage housing 34 to move upward, the sealing cover 35 at the top of the storage housing 34 moves toward the bottom of the baffle 33, and in the process of the sealing cover 35 moving upward, the two sealing plates 37 are separated from each other and the filling hole 36 is opened through the action of the movable opening and closing mechanism, so that after the sealing cover 35 and the bottom of the baffle 33 are in contact, the bottom end of the material conveying ring 10 moves vertically downward and enters the storage housing 34 along the filling hole 36, and the lithium cobalt oxide powder is filled into the storage housing 34 along the spiral material conveying groove 11 through the rotation of the material conveying ring 10, and the storage housing 34 is weighed by the weighter 39 during the filling process, and when the weight value of the weighter 39 reaches the set value, the controller connected to the weighter 39 controls the material conveying ring 10 to return to the initial position, and the piston shaft of the second hydraulic cylinder 38 moves in the opposite direction, so that the storage housing 34 and the sealing cover 35 move downward and return to the initial position, and in the process of returning, the sealing plates 37 reseal the filling hole 36, and the one-way conveying mechanism continues to convey the filled storage housing 34 in one direction, and the vertical contact of the sealing cover 35 and the baffle 33 and the movable opening and closing of the filling hole 36 effectively reduce the dust dispersion generated during the filling process of the lithium cobalt oxide powder, improve the sealing performance during the filling process of the lithium cobalt oxide powder, and reduce the toxicity volatilization of the lithium cobalt oxide powder during the filling and storage process, thereby reducing the pollution of the lithium cobalt oxide powder to the workers and the environment.

[0044] As a further implementation of the present application, the one-way conveying mechanism comprises a plurality of connecting short shafts 40 rotatably connected on both sides inside the conveying frame 1, the connecting short shafts 40 are respectively located above both sides of the weigher 39, the connecting short shafts 40 are fixedly connected with conveying short rollers 41, a plurality of connecting long shafts 42 are rotatably connected inside the conveying frame 1, the connecting long shafts 42 are fixedly connected with conveying long rollers 43, one end of the connecting short shaft 40 and both ends of the conveying long roller 43 are fixedly connected with driving gears 44, a plurality of driven gears 45 are rotatably connected on both sides of the conveying frame 1, the driven gears 45 are engaged with the adjacent two driving gears 44, a second motor 46 is fixedly installed on the conveying frame 1, and one end of the connecting long shaft 42 is fixedly connected with the output shaft of the second motor 46; in operation, the output shaft of the second motor 46 drives the corresponding connecting long shaft 42 to rotate, 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 gears 44 and the driven gears 45, all the connecting long shafts 42 and the connecting short shafts 40 rotate in the same direction, so as to drive the conveying long rollers 43 and the conveying short rollers 41 to rotate synchronously, and the storage shell 34 is conveyed in one direction; when the storage shell 34 moves to the top of the conveying short roller 41 and is located directly above the weigher 39, the second motor 46 stops working, and the storage shell 34 is lifted and weighed by the vertical movement of the weigher 39; when the filling of lithium cobaltate powder is completed, the weigher 39 is lowered by the reverse movement of the second hydraulic cylinder 38, and the storage shell 34 is repositioned on the top of the plurality of conveying short rollers 41, and then the storage shell 34 is continuously conveyed in one direction by the rotation of the output shaft of the second motor 46.

[0045] As a further implementation of the present application, the movable opening and closing mechanism comprises two limiting frames 47 located on both sides of the sealing cover 35, two sliding rods 48 are fixedly connected on the limiting frame 47, one end of the sliding rod 48 penetrates through the sealing cover 35 and extends to the inside of the sealing cover 35 and is fixedly connected with 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, two wedge blocks 50 are fixedly connected on the bottom of the baffle 33 (as shown in Figure 3When the storage shell 34 is lifted upward by the lifting of the weigher 39 during work, the sealing cover 35 is lifted synchronously, the limiting racks 47 on both sides of the sealing cover 35 are lifted synchronously and are in contact with the corresponding wedge blocks 50, the two limiting racks 47 are guided to move away from each other by the slope of the wedge block 50, the sliding rods 48 are moved along the through holes, the springs 49 are compressed and deformed, so that the two sealing plates 37 are moved away from each other and the filling holes 36 are opened, when the storage shell 34 is filled and moves downward, the limiting racks 47 are reversely moved along the slope of the wedge block 50, the two sealing plates 37 are moved close to each other by the elastic extension of the spring 49, so that the filling holes 36 are sealed, the lithium cobaltate powder is effectively prevented from escaping, and the sealing performance during the filling process is improved.

[0046] As a further implementation scheme of the present application, the two sides of the conveying frame 1 are fixedly connected with guide frames 51, and the two guide frames 51 are located on the two sides above the weigher 39; during work, the storage shell 34 is centrally adjusted during the movement and conveying process by the limiting action of the guide frames 51, and the accuracy of the butt joint of the filling holes 36 and the material conveying ring 10 is improved.

[0047] As a further implementation scheme of the present application, the two guide frames 51 are provided with circular holes 52 (as shown in the figure) on the sides away from each other, and the laser emitter 53 and the laser receiver 54 are fixedly installed on the sides away from each other of the two guide frames 51, respectively, and the circular holes 52 are located between the laser emitter 53 and the laser receiver 54. Figure 12 During work, 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 position directly above the weigher 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 pause, so that the one-way conveying of the storage shell 34 is stopped, the controller connected to the laser receiver 54 is electrically connected with the second hydraulic cylinder 38 and the weigher 39 at the same time, when the second motor 46 pauses, the controller controls the piston shaft of the second hydraulic cylinder 38 to drive the weigher 39 to move upward, and when the weight of the weigher 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 to work, so that the storage shell 34 continues to be one-way conveyed, and when the storage shell 34 passes between the laser emitter 53 and the laser receiver 54, the second motor 46 continues to work, until the laser signal received by the laser receiver 54 is interrupted again, the work of the second motor 46 is paused again, and the above process is repeated to continuously fill the lithium cobaltate powder.

[0048] The working principle of the present application is as follows:

[0049] The lithium cobaltate powder is conveyed along the feeding pipe 3 to the inside of the filling barrel 2, and the storage container is placed on the top of the conveying frame 1 and below the discharging pipe 4. The sliding sleeve 12 is driven to move vertically downward by the lifting mechanism, thereby driving the feeding ring 10 to move vertically downward along the sliding joint between the inner ring 6 and the discharging pipe 4, and moving part of the spiral feeding groove 11 below the discharging pipe 4. The bottom end of the spiral feeding groove 11 and the feeding ring 10 are not connected, so that when the bottom end of the feeding ring 10 is located inside the discharging pipe 4, the lithium cobaltate powder cannot be discharged downward along the spiral feeding groove 11. The outer ring 5 and the inner ring 6 are driven to rotate in reverse by the reverse rotating mechanism, and the inner ring 6 drives the plurality of scraping frames 7 to rotate synchronously when rotating, and the inner wall of the filling barrel 2 is scraped by the sliding fit of the scraping frame 7 and the filling barrel 2, thereby reducing the adsorption and adhesion of the lithium cobaltate powder to the inner wall under the action of static adsorption. When the outer ring 5 and the inner ring 6 rotate in reverse, the first shear strip 8 and the second shear strip 9 rotate in reverse. The first shear strip 8 and the second shear strip 9 are perpendicular to each other and have opposite inclined directions, and the lithium cobaltate powder in the filling barrel 2 is sheared by the first shear strip 8 and the second shear strip 9 during reverse rotation, thereby crushing the agglomerated lithium cobaltate powder and effectively reducing the agglomeration of the lithium cobaltate powder. When the inner ring 6 rotates, the feeding ring 10 is driven to rotate synchronously by the synchronous rotating mechanism. Part of the spiral feeding groove 11 in the filling barrel 2 rotates synchronously, and the lithium cobaltate powder is conveyed along the spiral feeding groove 11, so that the lithium cobaltate powder moves along the spiral feeding groove 11 to the lower side of the discharging pipe 4. When the lithium cobaltate powder loses the limitation of the discharging pipe 4, it falls from the spiral feeding groove 11 and is filled into the storage container under the action of gravity. The feeding ring 10 is limited by the sliding sleeve 12 during rotation. The ejector pin 14 is located below the discharging pipe 4 and rotates synchronously with the feeding ring 10. The circular pin 15 on the ejector pin 14 is guided and limited by the guide groove 17 on the circular disc 16 during rotation. When the circular pin 15 is located inside the arc segment 1701 of the guide groove 17, one end of the ejector pin 14 is located inside the spiral feeding groove 11 and abuts against the inner wall of the spiral feeding groove 11, so that the spiral feeding groove 11 normally feeds. When the circular pin 15 moves from the arc segment 1701 to the protruding segment 1702, one end of the ejector pin 14 extends outward from the spiral feeding groove 11, and the lithium cobaltate powder in the spiral feeding groove 11 is ejected outward, so that the lithium cobaltate powder is normally discharged, and the lithium cobaltate powder is prevented from being adsorbed and adhered in the spiral feeding groove 11 when moving to the bottom of the spiral feeding groove 11, thereby effectively improving the conveying and filling efficiency of the lithium cobaltate powder.

[0050] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A material filling device for battery cathode material production, comprising a conveying frame, characterized in that, The filling barrel is fixedly connected above 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 shaft of the bottom of the filling barrel; The top of the filling barrel is rotatably connected with an outer ring, the inner part of the outer ring is rotatably connected with an inner ring, a plurality of material scraping frames are fixedly connected to the surface of the outer ring in the circumferential direction, the material scraping frames are in sliding fit with the inner wall of the filling barrel, a plurality of first shearing strips are fixedly connected to the inner part of the material scraping frame, a plurality of second shearing strips are fixedly connected to the surface of the inner ring in the circumferential direction, and a reverse rotating mechanism is connected between the outer ring and the inner ring; The discharging pipe and the inner ring are jointly and slidably provided with a material conveying ring, a spiral material conveying groove is formed in the material conveying ring, a synchronous rotating mechanism is connected between the inner ring and the material conveying ring, a sliding sleeve is rotatably connected to the top of the material conveying ring, a lifting mechanism is connected to the sliding sleeve, a circular rod is arranged in the material conveying ring, the circular rod is fixedly connected to the sliding sleeve, a knock pin is arranged below the material conveying ring, one end of the knock pin penetrates through the material conveying ring and extends into the spiral material conveying groove, the other end of the knock pin is fixedly connected with a circular pin, two circular discs are fixedly connected to the circular rod, guide grooves are formed in the adjacent sides of the two circular discs, the two ends of the circular pin are located in the corresponding guide grooves, respectively, and each guide groove comprises a circular segment and a protruding segment; The bottom end of the discharging pipe is fixedly connected with a baffle, the top of the conveying frame is provided with a storage shell, the top of the storage shell is fixedly connected with a sealing cover, a filling hole is formed in the center of the sealing cover, two sealing plates are arranged at the bottom of the filling hole, a second hydraulic cylinder is fixedly installed on the conveying frame, a weighter 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; The one-way conveying mechanism comprises a plurality of connecting short shafts rotatably connected to the two sides in the conveying frame, the connecting short shafts are located on the two sides above the weighter, respectively, a conveying short roller is fixedly connected to each connecting short shaft, a plurality of connecting long shafts are rotatably connected in the conveying frame, a conveying long roller is fixedly connected to each connecting long shaft, a driving gear is fixedly connected to one end of each connecting short shaft and two ends of each conveying long roller, a plurality of driven gears are rotatably connected to the two sides of the conveying frame, the driven gears are engaged with the two adjacent driving gears, respectively, 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; The movable opening and closing mechanism comprises two limiting frames located on the two sides of the sealing cover, two sliding rods are fixedly connected to each limiting frame, one end of each sliding rod penetrates through the sealing cover and extends into the sealing cover, and the other end of each sliding rod is fixedly connected to the corresponding sealing plate, a spring is sleeved on each sliding rod, and the spring is fixedly connected between the sealing cover and the corresponding sealing plate, and the bottom of the baffle is fixedly connected with two wedge blocks.

2. The material filling device for producing a battery positive electrode material according to claim 1, characterized by, The reverse rotating mechanism comprises a first fixed ring and a second fixed ring, the first fixed ring and the second fixed ring are fixedly connected at the top of the inner ring and the outer ring respectively, the side adjacent to each other of the first fixed ring and the second fixed ring is fixedly connected with a first inner gear ring and a second inner gear ring respectively, the top of the filling barrel is fixedly connected with two mounting frames, the two mounting frames are rotatably connected with two matching gears, the two matching gears are engaged with each other, the first inner gear ring and the second inner gear ring are engaged with the corresponding matching gears respectively, the first fixed ring is fixedly connected with an outer gear ring, the top of the filling barrel is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a driving gear, and the driving gear is engaged with the outer gear ring.

3. The material filling device for battery cathode material production according to claim 1, characterized in that, The lifting mechanism comprises a U-shaped frame, the U-shaped frame is fixedly connected at the top of the filling barrel, a plurality of limiting pins are slidingly arranged on the U-shaped frame, the limiting pins are fixedly connected to the sliding sleeve, the top of the U-shaped frame is fixedly connected with a first hydraulic cylinder, the piston shaft of the first hydraulic cylinder penetrates through the U-shaped frame and extends to the inside of the U-shaped frame and is fixedly connected to the shaft center at the top of the sliding sleeve.

4. The material filling device for battery cathode material production according to claim 1, characterized in that, The synchronous rotating mechanism comprises a strip-shaped groove and a limiting strip, the strip-shaped groove is arranged on the inner wall of the inner ring, and the limiting strip is fixedly connected to the side of the material conveying ring and located in the strip-shaped groove.

5. The material filling device for battery cathode material production according to claim 1, characterized in that, The top of the first shear strip and the second shear strip is fixedly connected with a plurality of piezoelectric ceramic pieces.

6. The material filling device for battery cathode material production according to claim 1, 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.

7. The material filling device for producing a battery cathode material according to claim 6, characterized in that, The two guide frames are provided with circular holes, and the two guide frames are fixedly connected with a laser emitter and a laser receiver respectively on the sides away from each other, and the circular holes are located between the laser emitter and the laser receiver.

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