Lithium manganate powder bowl loading mechanism

Abstract

The invention discloses a lithium manganate powder earthen bowl loading mechanism, and relates to the technical field of battery production, the lithium manganate powder earthen bowl loading mechanism comprises a discharging pipe, a first lifting mechanism is arranged right below the discharging pipe, a surface plate for supporting an earthen bowl body is fixed on the top of the first lifting mechanism, and an isolation cover is fixedly sleeved on the discharging pipe; when the first lifting mechanism is located at the tail end of the stroke, the isolation cover and the surface plate form a sealed space, the isolation cover communicates with an airflow transfer device, and when the airflow transfer device is in the first suction stage, the first lifting mechanism moves towards the tail end of the stroke. When the airflow transfer device is in the second suction stage, the sealed space is in an evacuated state, the discharging pipe can put powder into the bowl body in the vacuum environment, the discharging height is reduced in the powder containing process of the bowl body, meanwhile, the vacuum environment for containing the bowl body is formed by the isolation cover and the surface plate, and the powder containing efficiency is improved. Therefore, the situation that the powder is raised in the powder bowl filling process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of battery production, in particular to a lithium manganate powder filling mechanism. Background Art

[0002] In battery production, after the lithium manganate powder goes through the mixing process, it needs to be loaded into a sagger and then put into a kiln for sintering.

[0003] For example, the existing patent publication number is CN214933512U, and the patent is titled "A device for filling a sagger with powdered materials." The patent includes "a charging box, a feed port obliquely connected to one side of the charging box, a discharge pipe vertically arranged at the bottom of the charging box, the lower end of the discharge pipe connected to a working box, a transmission mechanism arranged inside the working box, elastic support assemblies arranged on both sides of the transmission mechanism, a vibrating screen obliquely connected to the upper end of the elastic support assembly, a discharge hopper connected to the lower end of the vibrating screen, and a horizontally arranged base."

[0004] During the process of filling lithium manganese oxide powder into bowls, there is a distance between the bottom of the bowl and the discharge end of the lithium manganese oxide powder equipment. As a result, some of the powder is easily lifted up during the falling process of the bowl, resulting in powder waste. Therefore, we propose a new technical solution to solve the above problem. Summary of the Invention

[0005] The object of the present invention is to provide a lithium manganate powder filling mechanism to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A lithium manganate powder loading mechanism comprises a discharge pipe, a first lifting mechanism is provided directly below the discharge pipe, a flat plate supporting a bowl body is fixed to the top of the first lifting mechanism, an isolation cover is sleeved and fixed on the discharge pipe, when the first lifting mechanism is at the end position of the stroke, the isolation cover and the flat plate form a sealed space, the isolation cover is connected to the isolation cover, the air flow transfer device moves the first lifting mechanism toward the end position of the stroke in the first suction stage, and the air flow transfer device puts the sealed space in an evacuated state in the second suction stage, and the discharge pipe can feed powder into the bowl body in a vacuum environment.

[0008] Preferably, the first lifting mechanism comprises a base cylinder, a piston column unit is inserted into the piston on the opening of the base cylinder, and the top end of the piston column unit is fixed to the flat plate.

[0009] Preferably, the air flow transfer device comprises an air pump, the air outlet end of the air pump is communicated with the base cylinder, the air inlet end of the air pump is communicated with the isolation cover through the piston column unit to form an air guide path, the piston column unit has a closed state of cutting off the air guide path, and the piston column unit also has a conducting state of making the air guide path unobstructed.

[0010] Preferably, the piston column unit comprises a column cylinder which is adaptively inserted with the base cylinder, and the cylinder mouth end of the column cylinder is sealingly fixed with the plane plate.

[0011] Preferably, a piston block is slidingly adapted in the column cylinder, one side of the piston block is a first space which is communicated with the air inlet end of the air pump, the other side of the piston block is a second space, the piston block can slide in the column cylinder according to the pressure change of the first space and the second space, so as to control the on-off state of the air guide path, and a bevel part is formed on the end face of the piston block towards the first space.

[0012] Preferably, a through hole is formed in the plane plate, a support column which is fixed with the piston block at the bottom end is movably inserted in the through hole, a supporting plate which supports the bowl body is fixed at the top end of the support column, a isolation hose which is fixed with the piston block is sleeved on the support column, and the other end of the isolation hose is fixed with the bottom surface of the plane plate.

[0013] Preferably, a conveying pipe is connected to the cylinder mouth end side of the column cylinder, and the other end of the conveying pipe is communicated with the isolation cover.

[0014] Preferably, an elastic sealing gasket ring is fixed to the cover mouth end of the isolation cover.

[0015] Preferably, a supporting table is installed at the bottom of the base cylinder.

[0016] Preferably, the air pump is a bidirectional air pump which can be positively or reversely pumped.

[0017] In the above technical solution, the lithium manganate powder bowl filling mechanism provided by the application comprises an isolation cover, an air flow transfer device and a plane plate installed on a first lifting mechanism, so that the discharging pipe can be close to the bowl body during the powder filling process, the discharging height is reduced, the isolation cover and the plane plate form a vacuum environment for accommodating the bowl body, and the powder lifting during the powder bowl filling process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 This is a simplified overall schematic diagram of a lithium manganate powder loading mechanism of the present invention;

[0020] Figure 2 This is a simplified cross-sectional schematic diagram of the first lifting mechanism of a lithium manganate powder loading mechanism of the present invention at a starting position;

[0021] Figure 3 This is a simplified cross-sectional schematic diagram of the first lifting mechanism of a lithium manganate powder loading mechanism of the present invention in an end position;

[0022] Figure 4 This is a simplified schematic diagram of a state in which the bottom end of a discharge pipe of a lithium manganate powder bowl-loading mechanism of the present invention extends into the inner bottom wall of the bowl body;

[0023] Figure 5 This is a schematic diagram of the uniform distribution of vertical tubes around a discharge pipe in a lithium manganate powder loading mechanism of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of an extension tube of a lithium manganate powder loading mechanism of the present invention being inserted into a vertical tube;

[0025] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle.

[0026] Description of reference numerals:

[0027] 1. Discharge pipe; 2. First lifting mechanism; 2.1. Base cylinder; 2.2. Piston column unit; 2.21. Cylinder; 2.22. Piston block; 2.23. Inclined portion; 3. Flat plate; 4. Isolation cover; 5. Air flow transfer device; 5.1. Air pump; 5.2. Connecting pipe; 6. Through hole; 7. Support column; 8. Support plate; 9. Isolation hose; 10. Support platform; 11. Delivery pipe; 12. Elastic sealing gasket; 13. Annular pipe; 14. Vertical pipe; 15. Extension barrel; 16. Atomizing nozzle; 17. Flow channel hole; 18. Valve plug column; 18.1. Cone block; 18.2. Extension rod; 19. Connecting line; 20. Limit line. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] In battery production, after the lithium manganate powder undergoes a mixing process, it needs to be loaded into a sagger and then entered into a kiln for sintering the lithium manganate powder. In the prior art, the sagger is transferred and transported on the production line by corresponding conveying equipment. When the sagger is transported to the loading position, it pauses. During the pause of the sagger, the discharge pipe of the powder loading equipment releases the powder and loads it into the bowl body. However, in the process of the powder falling into the bowl body, due to the spacing between the bottom of the bowl and the discharge end, it is difficult to avoid some of the powder flying out of the bowl body during the falling process, resulting in powder waste. Therefore, we propose a new technical solution to solve the above problem.

[0030] See also Figure 1-Figure 7 , an embodiment of the present invention provides a lithium manganate powder bowl loading mechanism, including a discharge pipe 1, a first lifting mechanism 2 is provided directly below the discharge pipe 1, a flat plate 3 supporting the bowl body is fixed on the top of the first lifting mechanism 2, an isolation cover 4 is sleeved and fixed on the discharge pipe 1, and when the first lifting mechanism 2 is at the end position of the stroke, the isolation cover 4 and the flat plate 3 form a sealed space, and the isolation cover 4 is connected to the air flow transfer device 5. The air flow transfer device 5 moves the first lifting mechanism 2 toward the end position of the stroke in the first suction stage, and the air flow transfer device 5 is in an evacuated state in the second suction stage, so that the discharge pipe 1 can feed powder into the bowl body in a vacuum environment;

[0031] Specifically, the tube body of the discharge pipe 1 is arranged vertically, and the lifting direction line of the first lifting mechanism 2 is perpendicular to the horizontal plane. In its vertical movement stroke, the first lifting mechanism 2 has an end position in a maximum extended state, and the first lifting mechanism 2 also has a starting position in a maximum contracted state. The bowl body is a high-temperature resistant flat-bottomed container for holding powder entering a high-temperature furnace, also known as a sagger, and the powder is lithium manganate powder. When the first lifting mechanism 2 is in the starting position, the conveying equipment and the bowl body can be docked and transferred, or the corresponding manipulator and the bowl body can be docked and transferred. The specific conveying equipment and docking method are existing technologies and are not repeated here. The top surface of the flat plate 3 is parallel to the horizontal plane, and the top surface of the flat plate 3 is a smooth surface. The isolation cover 4 can be buckled on the flat plate 3. The cover end of the isolation cover 4 is fixed with an elastic sealing gasket 12. The airflow transfer device 5 has a forward transfer state and a reverse transfer state. The forward transfer state of the airflow transfer device 5 consists of a first suction stage and a second suction stage.

[0032] In actual use, when the first lifting mechanism 2 is in the starting position, the empty pot body is located on the plane plate 3, and in the forward conveying state of the airflow conveying device 5, in the first suction stage, the first lifting mechanism 2 moves from the starting position to the terminal position, and the plane plate 3 lifts the pot body upward along with the first lifting mechanism 2, when the first lifting mechanism 2 is in the terminal position, the plane plate 3 is buckled with the isolation cover 4, the pot body is in the sealed space formed by the isolation cover 4 and the plane plate 3, and the pot body is close to the discharge end of the feeding pipe 1, in the continuous forward conveying state of the airflow conveying device 5, the airflow conveying device 5 enters the second suction stage, the first lifting mechanism 2 remains in the terminal position, at the same time, the air in the sealed space formed by the isolation cover 4 and the plane plate 3 is sucked away, so that the pot body is in a vacuum environment, and at this time, the feeding pipe 1 discharges the powder into the pot body in the vacuum environment, so as to complete the loading of the powder in the pot body.

[0033] Similarly, when the airflow conveying device 5 is in the reverse conveying state, the airflow conveying direction is towards the sealed space, so that the sealed space recovers to the air state, then the first lifting mechanism 2 moves from the terminal position to the starting position, so that the pot body returns to the position of being connected and conveyed with the conveying line, and the whole process enables the feeding pipe to be close to the pot body for discharging during the process of loading the powder in the pot body, reduces the discharging height, and at the same time, the isolation cover and the plane plate form a vacuum environment containing the pot body, so as to improve the condition of powder lifting during the process of loading the powder in the pot body.

[0034] In another embodiment of the present application, the first lifting mechanism 2 comprises a base cylinder 2.1, the axis line of the base cylinder 2.1 is perpendicular to the horizontal plane, the bottom of the base cylinder 2.1 is provided with a support table 10, the support table 10 is a height-adjustable lifting support device, which can adjust the distance between the base cylinder 2.1 and the isolation cover 4, a piston column unit 2.2 is inserted into the cylinder port of the base cylinder 2.1, and the top end of the piston column unit 2.2 is fixed to the plane plate 3.

[0035] The airflow conveying device 5 comprises a gas pump 5.1, the gas pump 5.1 is a bidirectional gas pump capable of being positively and negatively pumped, in the forward conveying state, the gas outlet end of the gas pump 5.1 is communicated with the base cylinder 2.1, the gas inlet end of the gas pump 5.1 is communicated with the isolation cover 4 through the piston column unit 2.2 to form a gas guide path, the piston column unit 2.2 has a closed state of cutting off the gas guide path, and the piston column unit 2.2 also has a conductive state of making the gas guide path unobstructed.

[0036] Furthermore, the piston column unit 2.2 includes a column barrel 2.21 adapted to be plugged into the base cylinder barrel 2.1, the barrel mouth end of the column barrel 2.21 is sealed and fixed to the flat plate 3, and a piston block 2.22 is adapted to slide inside the column barrel 2.21. One side of the piston block 2.22 is a first space connected to the air inlet end of the air pump 5.1. Preferably, the air inlet end of the air pump 5.1 is connected to the column barrel 2.21 near the barrel mouth through a connecting pipe 5.2. The connecting pipe 5.2 is preferably lined with a spiral metal wire hose. The other side of the piston block 2.22 is a second space, i.e., the air inlet end of the air pump 5.1 is connected to the column barrel 2.21 near the barrel mouth. The other side of the piston block 2.22 and the inner wall of the cylinder 2.21 form the wall of the second space. The piston block 2.22 can slide within the cylinder 2.21 according to the pressure changes between the first space and the second space, thereby controlling the on / off state of the gas guide path. It should be noted that the end surface of the piston block 2.22 facing the first space is provided with a beveled portion 2.23. In addition, the side surface of the cylinder 2.21 is connected to the side of the barrel end. The other end of the delivery pipe 11 is connected to the isolation cover 4. The delivery pipe 11 is preferably a spiral steel wire lined hose.

[0037] During actual use, the air pump 5.1 pumps air in a forward direction. In the first pumping stage, the airflow transfer device 5 is in a forward transfer state. At this time, the external air passes through the isolation cover 4, the delivery pipe 11, the first space in the column 2.21, the connecting pipe 5.2, the air inlet end of the air pump 5.1, the air outlet end of the air pump 5.1, and finally enters the base cylinder 2.1. At this time, the air pressure in the base cylinder 2.1 increases, causing the column 2.21 to extend outward, and then the first lifting mechanism 2 moves from the starting position to the end position;

[0038] When the first lifting mechanism 2 is in the end position, the isolation cover 4 and the flat plate 3 form a sealed space, and the air pump 5.1 continues to pump air in the forward direction, entering the second suction stage. The air in the sealed space passes through the delivery pipe 11, the first space in the column 2.21, the connecting pipe 5.2, the air inlet end of the air pump 5.1, the air outlet end of the air pump 5.1, and finally enters the base cylinder 2.1. At this time, the air in the base cylinder 2.1 enters a compressed state, and the compressed air in the base cylinder 2.1 enables the column 2.21 to exert a firm supporting force on the flat plate 3, ensuring that the intersection position where the flat plate 3 and the isolation cover 4 are buckled together is in a tight state. It should be additionally noted that by adjusting the height position of the support platform 10, the pressure value in the base cylinder 2.1 can be indirectly adjusted;

[0039] When the sealed space is in a vacuum state, the piston block 2.22 in the cylinder 2.21 is sucked by the air pump 5.1, and the pressure in the first space is also lower than the pressure in the second space. The piston block 2.22 then moves toward the first space. This movement is called the forward movement of the piston block 2.22. When the piston block 2.22 reaches the end of the forward movement, the piston block 2.22 blocks the air inlet end of the air pump 5.1. At the same time, the piston block 2.22 blocks the side access end of the delivery tube 11 at the barrel end of the cylinder 2.21. At this time, the piston column unit 2.2 is in a closed-circuit state that cuts off the air guide path. At the same time, the inclined portion 2.23 of the piston block 2.22 and the wall surface of the cylinder 2.21 form a gap.

[0040] When the bowl is loaded with powder, the air pump 5.1 reverses the pumping, that is, the air flow transfer device 5 is in the reverse transfer state, and the air in the base cylinder 2.1 passes through the air pump 5.1, the connecting pipe 5.2, and the first space of the column 2.21 in turn. It should be noted that when the air enters the first space, the air flow blows toward the gap space where the inclined portion 2.23 is located, thereby causing the piston block 2.22 to move toward the second space. This movement is the reverse movement of the piston block 2.22, thereby releasing the blockage of the piston block 2.22 on the side access end of the delivery pipe 11 at the barrel end of the column 2.21. Then the air flow passes through the delivery pipe 11 again and finally enters the sealed space, so that the pressure inside and outside the sealed space is restored to a normal state. Then, as the air in the base cylinder 2.1 is extracted, the air pressure in the base cylinder 2.1 decreases, causing the column 2.21 to retract inward, and then the first lifting mechanism 2 moves from the end position to the starting position;

[0041] During the entire process, it is only necessary to change the suction direction of the air pump 5.1 to switch the lifting state of the first lifting mechanism 2 and to create and cancel the vacuum environment of the bowl when receiving the powder, thereby improving the situation of powder being lifted during the powder filling process.

[0042] In still another embodiment of the present application, a through hole 6 is formed in the flat plate 3, a support column 7 with a bottom end fixed to the piston block 2.22 is movably inserted into the through hole 6, the axis of the support column 7 is perpendicular to the horizontal plane, a supporting plate 8 for supporting the bowl is fixed to the top end of the support column 7, the supporting plate 8 can completely support the bottom of the bowl, the plate surface of the supporting plate 8 is parallel to the flat plate 3, an isolation hose 9 fixed to the piston block 2.22 is sleeved on the support column 7, the other end of the isolation hose 9 is sealingly fixed to the bottom surface of the flat plate 3, the isolation hose 9 is preferably an elastic rubber pipe, the outer pipe wall of the isolation hose 9, the inner wall of the column 2.21, the piston block 2.22 and the plate surface of the flat plate 3 form the wall surface of the first space, at this time, the through hole 6, the support column 7, the supporting plate 8 and the piston block 2.22 together form a second lifting mechanism on the flat plate 3, the second lifting mechanism can correspondingly move up and down according to the change of the air pressure in the column 2.21;

[0043] In actual use, the first lifting mechanism 2 is in the end position, and the airflow transfer device 5 is in the second suction stage, when the piston block 2.22 moves forward, the piston block 2.22 makes the bowl on the supporting plate 8 further close to the bottom end of the discharging pipe 1 through the support column 7, so that the bottom end of the discharging pipe 1 relatively extends into the containing space of the bowl, and the bottom end of the discharging pipe 1 is close to the inner bottom wall of the bowl, then the discharging pipe 1 releases the powder, when the airflow transfer device 5 is in the reverse transfer state, at this time, the piston block 2.22 moves reversely, and the piston block 2.22 makes the bowl on the supporting plate 8 away from the bottom end of the discharging pipe 1 through the support column 7, so that the bottom end of the discharging pipe 1 is separated from the containing space of the bowl;

[0044] That is to say, in the whole process of the discharging pipe 1 relatively extending into the bowl, the discharging pipe 1 releasing the powder and the bowl away from the bottom end of the discharging pipe 1, all are carried out in the vacuum environment, so that the dust raising in the process of loading the powder into the bowl is avoided, and the shape of the powder entering the bowl is limited, since the distance of the powder falling to the bottom of the bowl is shortened, the inertial impact of the powder falling is reduced, and the conical stacking mode of the powder in the bowl is improved, since the stacking mode is changed, the full load rate of the bowl loading the powder is improved.

[0045] In another embodiment provided by the present invention, an annular tube 13 located outside the isolation cover 4 is fixedly connected to the tube body of the discharge tube 1, and the annular tube 13 is connected to a liquid supply tank. The liquid in the liquid supply tank has combustion-supporting properties, such as a mixture of water and ethanol. The liquid supply tank can pump the liquid in the tank into the annular tube 13 through a corresponding pipeline. The bottom of the annular tube 13 is connected to a plurality of vertical tubes 14, and each vertical tube 14 is evenly distributed along the annular line of the annular tube 13. The axis of each vertical tube 14 is perpendicular to the horizontal plane. The bottom end of each vertical tube 14 is adapted to be plugged with an extension tube 15, and the bottom end of each extension tube 15 is installed with an atomizing nozzle 16. The extension tube 15 can undergo axial linear movement in the vertical tube 14, that is, the extension tube 15 can undergo telescopic movement in the vertical tube 14. The extension tube 15 is provided with a flow channel hole 17 connected to the liquid inlet end of the atomizing nozzle 16. A valve plug 18 is adapted to be provided in the flow channel hole 17. The valve plug 18 has a blocking position for blocking the flow channel hole 17 and a avoidance position for keeping the flow channel hole 17 unobstructed. The top end of the valve plug 18 is connected to the inner top wall of the annular tube 13 by a connecting line 19, and the bottom end of the valve plug 18 is connected to the inner wall of the flow channel hole 17 by an elastic limiting line 20. The number of limiting lines 20 can be selected to be multiple;

[0046] The valve plug 18 includes a frustum block 18.1, the top of which is connected to the connecting line 19. An extension rod 18.2 is fixed to the bottom of the frustum block 18.1. The cross-sectional diameter of the extension rod 18.2 is smaller than the aperture of the flow channel hole 17. The axis of the extension rod 18.2 is perpendicular to the horizontal plane, and the rod body of the extension rod 18.2 is fixed to the limit line 20.

[0047] In actual use, after the isolation cover 4 is completely separated from the flat plate 3, the liquid in the annular tube 13 is transported to the extension tube 15 through the vertical tube 14. During the transportation process, the extension tube 15 is pushed by the liquid and moves out of the vertical tube 14. In this process, when the connecting line 19 is in a straightened state, the valve plug 18 cannot continue to move downward with the extension tube 15, so that the valve plug 18 is separated from the flow channel hole 17. At this time, the valve plug 18 is in a avoidance position to keep the flow channel hole 17 unobstructed. At the same time, the limit The position line 20 is also pulled and stretched in a straight state, thereby limiting the downward extension movement of the extension tube 15 and preventing the extension tube 15 from completely separating from the vertical tube 14. In this state, the liquid in the extension tube 15 enters the atomizing nozzle 16 through the flow channel hole 17, thereby generating a mist covering the powder in the bowl, thereby further improving the stability of the powder during the transportation process and helping to suppress the powder from being lifted up. On the other hand, the liquid with combustion-supporting properties also plays a good combustion-assisting effect on the powder in the combustion furnace later.

[0048] When the next bowl is filled with powder, the isolation cover 4 and the flat plate 3 are close to each other, at this time, the extension cylinder 15 is retracted into the vertical tube 14 under the reaction force of the bowl, additionally, the end of the atomizing nozzle 16 is protrudingly provided with a support capable of bearing extrusion, the support protects the atomizing nozzle 16, during the retraction of the extension cylinder 15 into the vertical tube 14, under the pulling action of the elastic limiting line 20, so that the valve plug column 18 restores to the plugging position of blocking the flow channel hole 17, at this time, the extension cylinder 15 is in the state of being retracted into the vertical tube 14.

[0049] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A lithium manganate powder loading mechanism, comprising a discharge pipe (1), characterized in that: A first lifting mechanism (2) is provided directly below the discharge pipe (1), a flat plate (3) supporting the bowl body is fixed on the top of the first lifting mechanism (2), an isolation cover (4) is sleeved and fixed on the discharge pipe (1), and when the first lifting mechanism (2) is at the end position of the stroke, the isolation cover (4) and the flat plate (3) form a sealed space, and the isolation cover (4) is connected to an air flow transfer device (5), and the air flow transfer device (5) moves the first lifting mechanism (2) toward the end position of the stroke in the first suction stage, and the air flow transfer device (5) is in an evacuated state in the second suction stage, and the discharge pipe (1) can release powder into the bowl body in a vacuum environment.

2. The lithium manganate powder loading mechanism according to claim 1, characterized in that: The first lifting mechanism (2) comprises a base cylinder (2.1), a piston on the cylinder mouth of the base cylinder (2.1) is plugged with a piston column unit (2.2), and the top end of the piston column unit (2.2) is fixed to the plane plate (3).

3. The lithium manganate powder loading mechanism according to claim 2, characterized in that: The air flow transfer device (5) comprises an air pump (5.1), the air outlet end of the air pump (5.1) is connected to the base cylinder (2.1), and the air inlet end of the air pump (5.1) is connected to the isolation cover (4) through the piston column unit (2.2) to form an air guide path. The piston column unit (2.2) has a closed-circuit state in which the air guide path is cut off, and the piston column unit (2.2) also has a conducting state in which the air guide path is unobstructed.

4. The lithium manganate powder loading mechanism according to claim 3, characterized in that: The piston column unit (2.2) comprises a column barrel (2.21) adapted to be plugged into the base cylinder barrel (2.1), and the barrel mouth end of the column barrel (2.21) is sealed and fixed to the plane plate (3).

5. The lithium manganate powder loading mechanism according to claim 4, characterized in that: A piston block (2.22) is adapted to slide inside the cylinder (2.21). One side of the piston block (2.22) is a first space connected to the air inlet end of the air pump (5.1), and the other side of the piston block (2.22) is a second space. The piston block (2.22) can slide inside the cylinder (2.21) according to the pressure changes between the first space and the second space, thereby controlling the on-off state of the air guide path. The piston block (2.22) is provided with an inclined portion (2.23) on the end surface facing the first space.

6. The lithium manganate powder loading mechanism according to claim 4, characterized in that: The flat plate (3) is provided with a through hole (6), a support column (7) whose bottom end is fixed to the piston block (2.22) is movably inserted into the through hole (6), a support plate (8) for supporting the bowl body is fixed to the top of the support column (7), and an isolation hose (9) fixed to the piston block (2.22) is provided on the outer sleeve of the support column (7), and the other end of the isolation hose (9) is fixed to the bottom surface of the flat plate (3).

7. The lithium manganate powder loading mechanism according to claim 4, characterized in that: A delivery pipe (11) is connected to the side of the barrel opening end of the column barrel (2.21), and the other end of the delivery pipe (11) is connected to the isolation cover (4).

8. The lithium manganate powder loading mechanism according to claim 7, characterized in that: An elastic sealing gasket ring (12) is fixed to the cover opening end of the isolation cover (4).

9. The lithium manganate powder loading mechanism according to claim 2, characterized in that: A support platform (10) is installed at the bottom of the base cylinder (2.1).

10. The lithium manganate powder loading mechanism according to claim 3, characterized in that: The air pump (5.1) is a bidirectional air pump capable of forward and reverse pumping.

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