A transport mechanism for improving the mixing degree of solid electrolyte precursors

Abstract

The present invention belongs to the technical field of solid-state battery production, and discloses a transport mechanism for improving the mixing degree of solid electrolyte precursors. The transport mechanism for improving the mixing degree of solid electrolyte precursors includes a base, a drive box and a conveying cylinder, wherein the conveying cylinder is fixedly connected to the upper surface of the base through a support rod, the drive box is installed on the base and is located on one side of the conveying cylinder, and a discharge port is provided on the side of the conveying cylinder away from the drive box. A main shaft is provided in the conveying cylinder, and a driving motor in the drive box is connected to one end of the main shaft to drive it to rotate, and the other end of the main shaft is movably connected to the inner wall of the conveying cylinder. The transport mechanism for improving the mixing degree of solid electrolyte precursors integrates a mixing function in the conveying mechanism, which greatly improves the production efficiency of electrolyte precursors, is more suitable for the production needs of continuous processing, and solves the problems raised in the background technology.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-state battery production, and in particular to a transport mechanism for improving the mixing degree of solid electrolyte precursors. Background Art

[0002] The manufacturing process of all-solid-state batteries mainly includes three stages: electrolyte synthesis, film formation, and cell assembly. The electrolyte synthesis includes several stages such as raw material pretreatment, mixing, sintering, and particle crushing and nano-crushing after sintering. The film formation stage includes dry film formation and wet film formation. The steps of dry film formation mainly include batching-fiberization-rolling film formation, and the steps of wet film formation mainly include solvent dehydration-mixing slurry coating-drying rolling. The cell assembly steps include die cutting, lamination-hot pressing, welding-packaging-isostatic pressing.

[0003] To achieve efficient mass production, manufacturers usually adopt the assembly line method. However, the raw material mixing process for electrolytes is still difficult to incorporate into assembly line production. It is usually necessary to use mixing equipment to mix the materials and then transfer the electrolyte slurry to the next process. In order to improve the production efficiency of electrolyte precursors, we proposed a transportation mechanism that improves the mixing degree of solid electrolyte precursors. Summary of the invention

[0004] The purpose of the present invention is to provide a transport mechanism for improving the mixing degree of solid electrolyte precursors. The transport mechanism for improving the mixing degree of solid electrolyte precursors integrates a mixing function in the process of transporting electrolyte raw materials. It has high mixing efficiency and good effect, simplifies the process flow, and greatly improves production efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a transport mechanism for improving the mixing degree of solid electrolyte precursors, comprising a base, a drive box and a conveying cylinder, wherein the conveying cylinder is fixedly connected to the upper surface of the base through a support rod, the drive box is installed on the base and is located on one side of the conveying cylinder, and a discharge port is provided on the side of the conveying cylinder away from the drive box, a main shaft is arranged in the conveying cylinder, a drive motor in the drive box is connected to one end of the main shaft to drive it to rotate, and the other end of the main shaft is movably connected to the inner wall of the conveying cylinder.

[0006] A feeding mechanism is arranged on one end face of the conveying cylinder close to the driving box, an annular groove is provided on the inner wall of the conveying cylinder close to the feeding mechanism, a piston conveying mechanism is arranged in the annular groove, an inclined plate is arranged on the main shaft and between the feeding mechanism and the driving box, a guide groove is arranged on the inclined plate, the inclined plate is linked with the piston conveying mechanism to drive its movement to convey raw materials, and a spiral conveying blade is arranged on the main shaft and in the conveying cylinder.

[0007] The angle formed by the axis of the main shaft and the axis of the inclined plate is in the range of 10°-30°.

[0008] The piston conveying mechanism includes a center column, a conveying groove 1, a conveying groove 2, a material distribution hole, a piston rod, a piston head and a connecting head. The center column is fixedly connected in the annular groove, one end of the center column is provided with a plurality of conveying grooves 1, and the conveying groove 1 is connected with the feeding groove, and the other end of the center column is provided with a conveying groove 2 corresponding to the position of the conveying groove 1, and the conveying groove 1 and the conveying groove 2 are connected through a plurality of material distribution holes. The piston rod is inserted in the conveying groove 1 and the conveying groove 2, and one end of the piston rod passes through the feeding shell and is provided with a connecting head, which is slidably connected in the guide groove, and the inclined plate rotates to drive the piston rod to extend and retract.

[0009] Preferably, the feeding mechanism comprises a feeding shell, an annular feeding trough is provided on the feeding shell, a guide hopper is fixedly connected to the top of the feeding shell, and the guide hopper is connected to the feeding trough through a straight groove.

[0010] Preferably, the guide groove has an open circular cross-section, the connecting head includes a ball head, a buffer pad and a self-lubricating spherical bearing, the ball head is fixedly connected to one end of the piston rod, the buffer pad is bonded to the surface of the ball head, and the self-lubricating spherical bearing is installed outside the buffer pad.

[0011] Preferably, a pressure plate is provided in the annular groove and on the side of the center column away from the feed shell, and the main shaft is inserted in the middle hole of the pressure plate, and a plurality of spring grooves are provided on the side wall of the annular groove. A movable rod is fixedly connected to the position of the pressure plate corresponding to the spring groove. The movable rod is inserted in the spring groove and connected to the bottom wall of the spring groove through a compression spring, and uniformly distributed nozzles are provided on the pressure plate.

[0012] Preferably, an annular film is fixedly connected to the inner wall of the nozzle, and a protective film is also connected to the edge of the pressure plate and the side wall of the annular groove.

[0013] Preferably, a plurality of diverter blocks are fixedly connected to the inner wall of the conveying trough 1 and are arranged in a ring with the axis of the conveying trough 1 as a reference. The diverter blocks are in the shape of triangular pyramids, with the side of the diverter blocks away from the piston head as its bottom surface and its apex pointing to the piston head.

[0014] Preferably, a diverter plate is fixedly connected to the piston rod and is located in the second conveying groove, and a plurality of diverter holes are formed on the diverter plate.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are:

[0016] 1. The transport mechanism for improving the mixing degree of the solid electrolyte precursor integrates a mixing function into the transport mechanism, greatly improving the production efficiency of the electrolyte precursor, being more suitable for the production requirements of continuous processing, and solving the problems raised in the background technology.

[0017] 2. The transport mechanism for improving the mixing degree of the solid electrolyte precursor utilizes the design of the feeding mechanism, the piston conveying mechanism and the spiral conveying blades to achieve sufficient mixing of the electrolyte raw materials, ensuring the processing effect while operating efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the present invention;

[0020] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 For the present invention Figure 2 The enlarged view of B in the middle;

[0022] Figure 5 A schematic diagram of the structure of the ball head of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0024] Figure 7 For the present invention Figure 2 Enlarged view of point C in the middle;

[0025] Figure 8 It is a structural schematic diagram of the diverter block of the present invention.

[0026] In the figure: 1. base; 2. drive box; 3. conveying cylinder; 4. discharge port; 5. main shaft; 6. feeding mechanism; 61. feeding shell; 62. feeding trough; 63. guide hopper; 64. straight trough; 7. annular groove; 8. piston conveying mechanism; 81. center column; 82. conveying trough one; 83. conveying trough two; 84. material distribution hole; 85. piston rod; 86. piston head; 87. connector; 871. ball head; 872. buffer pad; 873. self-lubricating spherical bearing; 9. inclined plate; 10. guide groove; 11. spiral conveying blade; 16. pressure plate; 17. spring groove; 18. movable rod; 19. compression spring; 20. nozzle; 21. annular film; 22. diverter block; 23. diverter plate; 24. diverter hole; 25. protective film. DETAILED DESCRIPTION

[0027] See also Figure 1-8The present invention provides a technical solution: a transportation mechanism for improving the mixing degree of solid electrolyte precursors, comprising a base 1, a driving box 2 and a conveying cylinder 3, wherein the conveying cylinder 3 is fixedly connected to the upper surface of the base 1 through a support rod, the driving box 2 is installed on the base 1 and is located on one side of the conveying cylinder 3, a discharge port 4 is provided on the side of the conveying cylinder 3 away from the driving box 2, a main shaft 5 is arranged in the conveying cylinder 3, a driving motor in the driving box 2 is connected to one end of the main shaft 5 to drive it to rotate, and the other end of the main shaft 5 is movably connected to the inner wall of the conveying cylinder 3.

[0028] A feeding mechanism 6 is provided on one end face of the conveying cylinder 3 close to the driving box 2, and the feeding mechanism 6 includes a feeding shell 61, and an annular feeding groove 62 is provided on the feeding shell 61. A guide hopper 63 is fixedly connected to the top of the feeding shell 61, and the guide hopper 63 is connected to the feeding groove 62 through a straight groove 64. An annular groove 7 is provided on the inner wall of the conveying cylinder 3 close to the feeding mechanism 6, and a piston conveying mechanism 8 is provided in the annular groove 7. An inclined plate 9 is provided on the main shaft 5 and between the feeding mechanism 6 and the driving box 2. A guide groove 10 is provided on the inclined plate 9. The inclined plate 9 is linked with the piston conveying mechanism 8 to drive its movement to convey raw materials. A spiral conveying blade 11 is provided on the main shaft 5 and in the conveying cylinder 3.

[0029] The angle between the axis of the main shaft 5 and the axis of the inclined plate 9 is in the range of 10°-30°. The inclined design enables the inclined plate 9 to drive the piston rod 85 to reciprocate in the conveying groove 82 when it rotates, thereby achieving the purpose of conveying raw materials.

[0030] The piston conveying mechanism 8 includes a center column 81, a conveying groove 1 82, a conveying groove 2 83, a material distribution hole 84, a piston rod 85, a piston head 86 and a connecting head 87. The center column 81 is fixedly connected in the annular groove 7. One end of the center column 81 is provided with a plurality of conveying grooves 1 82, and the conveying groove 1 82 is connected with the feed groove 62. The other end of the center column 81 is provided with a conveying groove 2 83 corresponding to the position of the conveying groove 1 82. The conveying groove 1 82 and the conveying groove 2 83 are connected through a plurality of material distribution holes 84. The piston rod 85 is inserted in the conveying groove 1 82 and the conveying groove 2 83, and one end of the piston rod 85 passes through the feed shell 61 and is provided with a connecting head 87. The connecting head 87 is slidably connected in the guide groove 10. The inclined plate 9 rotates to drive the piston rod 85 to extend and retract. The inner wall of the conveying groove 1 82 is fixedly connected to the piston rod 85. There are several diverter blocks 22 and they are arranged in a ring with reference to the axis of the conveying trough 82. The diverter block 22 is in the shape of a triangular pyramid. The side of the diverter block 22 away from the piston head 86 is its bottom surface, and its vertex points to the piston head 86. The triangular pyramid is a geometric body of a cone, which is composed of four triangles. It has one vertex when the bottom surface is fixed and four vertices when the bottom surface is not fixed. For the convenience of fixation, the diverter block is welded to the inner wall of the conveying trough 82 by one side. When the material enters the diverter block 22 from the piston head 86, it will be divided by the edge of the diverter block 22 to achieve enhanced mixing. The design of the diverter block 22 can divert the raw materials so that a mixing effect is produced when they converge again. A diverter plate 23 is fixedly connected to the piston rod 85 and is located in the conveying trough 83. A plurality of diverter holes 24 are opened on the diverter plate 23.

[0031] The cross section of the guide groove 10 is an open circle, and the connecting head 87 includes a ball head 871, a buffer pad 872 and a self-lubricating spherical bearing 873. The ball head 871 is fixedly connected to one end of the piston rod 85, the buffer pad 872 is bonded to the surface of the ball head 871, and the self-lubricating spherical bearing 873 is installed outside the buffer pad 872.

[0032] A pressure plate 16 is also provided in the annular groove 7 and on the side of the central column 81 away from the feed shell 61, and the main shaft 5 is inserted into the middle hole of the pressure plate 16. A plurality of spring grooves 17 are provided on the side wall of the annular groove 7. A movable rod 18 is fixedly connected to the position corresponding to the spring groove 17 on the pressure plate 16. The movable rod 18 is inserted in the spring groove 17 and connected to the bottom wall of the spring groove 17 through a compression spring 19. The pressure plate 16 is provided with uniformly distributed nozzles 20, and an annular film 21 is fixedly connected to the inner wall of the nozzle 20. The raw material is discharged from the conveying groove 83 and continuously squeezes the pressure plate 16 to compress the compression spring 19 until the raw material is squeezed so that the small hole in the middle of the annular film 21 is opened, and the raw material is ejected and shot in the direction of the spiral conveying blade 11. After being mixed by the spiral conveying blade 11, the mixing effect and processing efficiency can be effectively improved. A protective film 25 is also connected to the edge of the pressure plate 16 and the side wall of the annular groove 7. The protective film 25 can protect the movable rod 18 from being contaminated by the electrolyte raw material.

[0033] When the equipment is working, the driving box 2 is started to drive the main shaft 5 to rotate, the inclined plate 9 rotates to drive the piston rod 85 to do reciprocating motion, the piston head 86 continuously enters and exits the conveying groove 82, and the raw materials are introduced into the guide hopper 63. The raw materials enter the feed groove 62 and are brought into the conveying groove 82 by the piston, and then squeezed into the conveying groove 83 through the dividing hole 84. The diverter hole 24 on the diverter plate 23 is used to divert the raw materials again. The raw materials will be squeezed into strips and discharged through the diverter hole. The subsequent strip materials are mixed to achieve the purpose of enhanced mixing. Then the raw materials are discharged from the conveying groove 83 and the pressure plate 16 is continuously squeezed to compress the compression spring 19 until the raw materials are squeezed to open the small hole in the middle of the annular film 21, and the raw materials are ejected and shot in the direction of the spiral conveying blade 11. After being mixed by the spiral conveying blade 11, the raw materials are discharged through the discharge port 4.

[0034] Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transport mechanism for improving the mixing degree of a solid electrolyte precursor, comprising a base (1), a drive box (2) and a transport cylinder (3), wherein the transport cylinder (3) is fixedly connected to the upper surface of the base (1) via a support rod, the drive box (2) is mounted on the base (1) and is located on one side of the transport cylinder (3), and a discharge port (4) is provided on a side of the transport cylinder (3) away from the drive box (2), characterized in that: A main shaft (5) is arranged in the conveying cylinder (3); a driving motor in the driving box (2) is connected to one end of the main shaft (5) to drive the main shaft (5) to rotate; and the other end of the main shaft (5) is movably connected to the inner wall of the conveying cylinder (3); A feeding mechanism (6) is provided on one end surface of the conveying cylinder (3) close to the driving box (2); an annular groove (7) is provided on one side of the inner wall of the conveying cylinder (3) close to the feeding mechanism (6); a piston conveying mechanism (8) is provided in the annular groove (7); an inclined plate (9) is provided on the main shaft (5) and between the feeding mechanism (6) and the driving box (2); a guide groove (10) is provided on the inclined plate (9); the inclined plate (9) and the piston conveying mechanism (8) are linked to drive the movement thereof to convey the raw materials; a spiral conveying blade (11) is provided on the main shaft (5) and in the conveying cylinder (3); The angle between the axis of the main shaft (5) and the axis of the inclined plate (9) is in the range of 10° to 30°; The piston conveying mechanism (8) comprises a central column (81), a conveying groove 1 (82), a conveying groove 2 (83), a material distribution hole (84), a piston rod (85), a piston head (86) and a connecting head (87). The central column (81) is fixedly connected in the annular groove (7). One end of the central column (81) is provided with a plurality of conveying grooves 1 (82), and the conveying grooves 1 (82) are connected to the material supply groove (62). The other end of the central column (81) is provided with a conveying groove 2 (83) at a position corresponding to the conveying groove 1 (82). The conveying groove 1 (82) and the conveying groove 2 (83) are connected through a plurality of material distribution holes (84). The piston rod (85) is inserted in the conveying groove 1 (82) and the conveying groove 2 (83). One end of the piston rod (85) passes through the material supply shell (61) and is provided with a connecting head (87). The connecting head (87) is slidably connected in the guide groove (10). The inclined plate (9) rotates to drive the piston rod (85) to extend and retract. A plurality of diverter blocks (22) are fixedly connected to the inner wall of the conveying trough (82) and are arranged in a ring with the axis of the conveying trough (82) as a reference. The diverter blocks (22) are in the shape of a triangular pyramid, and the side of the diverter block (22) away from the piston head (86) is its bottom surface, and its apex points to the piston head (86); A diverter plate (23) is fixedly connected to the piston rod (85) and is located in the second conveying groove (83). The diverter plate (23) is provided with a plurality of diverter holes (24).

2. A transport mechanism for improving the mixing degree of a solid electrolyte precursor according to claim 1, characterized in that: The feeding mechanism (6) comprises a feeding shell (61), an annular feeding trough (62) is provided on the feeding shell (61), a guide hopper (63) is fixedly connected to the top of the feeding shell (61), and the guide hopper (63) is connected to the feeding trough (62) via a straight groove (64).

3. A transport mechanism for improving the mixing degree of a solid electrolyte precursor according to claim 2, characterized in that: The guide groove (10) has an open circular cross section. The connector (87) comprises a ball head (871), a buffer pad (872) and a self-lubricating joint bearing (873). The ball head (871) is fixedly connected to one end of the piston rod (85). The buffer pad (872) is bonded to the surface of the ball head (871). The self-lubricating joint bearing (873) is mounted outside the buffer pad (872).

4. A transport mechanism for improving the mixing degree of a solid electrolyte precursor according to claim 3, characterized in that: A pressure plate (16) is further provided in the annular groove (7) and on the side of the central column (81) away from the feed shell (61), and the main shaft (5) is inserted into the middle hole of the pressure plate (16). A plurality of spring grooves (17) are provided on the side wall of the annular groove (7). A movable rod (18) is fixedly connected to the position of the pressure plate (16) corresponding to the spring groove (17). The movable rod (18) is inserted into the spring groove (17) and connected to the bottom wall of the spring groove (17) via a compression spring (19). The pressure plate (16) is provided with uniformly distributed nozzles (20).

5. A transport mechanism for improving the mixing degree of a solid electrolyte precursor according to claim 4, characterized in that: An annular film (21) is fixedly connected to the inner wall of the nozzle (20), and a protective film (25) is also connected to the edge of the pressure plate (16) and the side wall of the annular groove (7).

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