Battery electrode processing device

Abstract

A battery electrode machining device comprises a machining charging barrel, a charging barrel top cover is arranged at the top of the machining charging barrel, the machining charging barrel is composed of a first charging barrel of a cylindrical structure and a second charging barrel of a spherical structure, a stirring shaft is arranged in the machining charging barrel, the upper end of the stirring shaft is installed on a driving motor, and the driving motor is installed on the charging barrel top cover; a plurality of stirring rod assemblies are distributed along the length direction of the stirring shaft; a first stirring part is mounted on the stirring shaft and comprises a first positioning sleeve, a spiral limiting boss and a stirring barrel, the first positioning sleeve is arranged on the stirring shaft, a transverse stirring beam is arranged on the outer wall of the first positioning sleeve, a first longitudinal stirring rod is arranged above the transverse stirring beam, and one end of the first longitudinal stirring rod is connected with a sliding positioning sleeve; the sliding positioning sleeve is sleeved on the stirring shaft, and a second longitudinal stirring rod symmetrical to the first longitudinal stirring rod is arranged on the outer wall of the sliding positioning sleeve. The mixing of the battery electrode material can be promoted so as to ensure the quality of the electrode material.

Description

Technical Field

[0001] The present invention relates to the technical field of battery electrodes, and in particular to a battery electrode processing device. Background Art

[0002] Lithium-ion battery refers to the general term for batteries with lithium ion embedded compounds as the positive electrode material. At present, the electrode material of lithium batteries is mostly metallic lithium material. In the production and processing of lithium batteries, it is usually necessary to mix the metallic lithium material and then calcine it to process the electrode material. During the preparation of the electrode material, it is necessary to use the stirring rod on the stirring shaft in the reaction vessel to fully stir the liquid raw material. Since the stirring rod can only stir the raw material around the stirring shaft, some sediment can easily fall to the lower part or bottom of the reaction vessel, affecting the fluidity and mixing uniformity of the raw material, and thus affecting the quality of the battery electrode. Summary of the Invention

[0003] The object of the present invention is to provide a battery electrode processing device, which can effectively solve the technical problems mentioned in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A battery electrode processing device includes a processing barrel, a barrel cover is provided on the top of the processing barrel, the processing barrel is composed of a first barrel with a cylindrical structure and a second barrel with a spherical structure, a stirring shaft is provided inside the processing barrel, the upper end of the stirring shaft is mounted on a drive motor, and the drive motor is mounted on the barrel cover, and a plurality of stirring rod assemblies are distributed along the length of the stirring shaft; The stirring shaft is provided with a first stirring member, the first stirring member includes a first positioning sleeve, a spiral limiting boss and a stirring barrel, the first positioning sleeve is arranged on the stirring shaft, a transverse stirring beam is arranged on the outer wall, a first longitudinal stirring rod is arranged above the transverse stirring beam, one end of the first longitudinal stirring rod is connected to the sliding positioning sleeve, the sliding positioning sleeve is arranged on the stirring shaft, a second longitudinal stirring rod symmetrical to the first longitudinal stirring rod is arranged on the outer wall, a guide rod is arranged at the bottom of the first longitudinal stirring rod, the lower end of the guide rod passes through the guide hole on the transverse stirring beam and is connected to a limited stop block, the limit stop A first return spring sleeved on the guide rod is provided between the block and the transverse stirring beam, the stirring barrel is respectively connected to the first longitudinal stirring rod and the second longitudinal stirring rod through a fixing assembly, the spiral limiting boss is provided on the inner wall of the first barrel, and when the first longitudinal stirring rod rotates with the stirring shaft, after the first longitudinal stirring rod contacts the spiral limiting boss, the spiral limiting boss pushes the first longitudinal stirring rod and the stirring barrel to move upward in the vertical direction, and after the spiral limiting boss disengages from the first longitudinal stirring rod, under the action of the return spring, the first longitudinal stirring rod and the stirring barrel move downward in the vertical direction; A second stirring member is installed at the bottom of the stirring shaft, and the second stirring member is used to accelerate the fluidity of the material at the inner wall of the second barrel.

[0005] Preferably, the second stirring member includes a second positioning sleeve and an arc plate, the second positioning sleeve is arranged on the stirring shaft and is connected to the arc plate through the second stirring rod, the arc plate is provided with a first arc-shaped slide groove, and an arc-shaped second slide groove connected to the first slide groove is provided on the outer wall, an arc-shaped sliding block is provided in the first slide groove, one side of the sliding block is provided with a cleaning protrusion passing through the second slide groove, and the other side is connected to the guide column, one end of the guide column passes through the first through hole in the arc plate and the second through hole in the fixed plate in sequence, and a limiting boss is provided on the guide column, and a second return spring arranged on the guide column is provided between the limiting boss and the fixed plate, and the second return spring pushes the cleaning protrusion to move along the second slide groove until the cleaning protrusion is attached to the inner wall of the second barrel, and the fixed plate is connected to the arc plate through the positioning rod.

[0006] Preferably, the outer end of the cleaning protrusion is provided with a cleaning layer made of soft material.

[0007] Preferably, the mixing barrel includes two fixed outer rings distributed in the vertical direction, and a fixed inner ring is provided inside the two fixed outer rings. A plurality of transverse positioning rods are evenly distributed between the fixed outer rings and the fixed inner rings. The two fixed outer rings are connected by a plurality of longitudinal positioning rods, and the fixed inner ring passes through the mixing shaft.

[0008] Preferably, the fixing assembly includes a fixing screw and a first sleeve respectively arranged on the first longitudinal stirring rod and the second longitudinal stirring rod, and a second sleeve is arranged on the fixed outer ring above the transverse stirring beam. The upper end of the fixing screw is inserted into the screw hole, the first sleeve and the second sleeve on the first longitudinal stirring rod or the second longitudinal stirring rod in sequence, and one end of the limiting bolt passes through the first sleeve and the fixing screw and is connected to the locking nut.

[0009] Preferably, one end of the first longitudinal stirring rod is in an arc shape and fits against the inner wall of the first barrel, the length of the second longitudinal stirring rod is smaller than that of the first longitudinal stirring rod, and the second longitudinal stirring rod always maintains a gap with the spiral limiting boss during one rotation.

[0010] Preferably, the transverse stirring beam is placed in a horizontal state and has a rectangular cross-section.

[0011] Preferably, the stirring rod assembly includes a third positioning sleeve and a stirring rod, the third positioning sleeve is arranged on the stirring shaft, and a plurality of stirring rods are distributed on the outer wall, and the stirring rods are in an inclined state.

[0012] Preferably, the stirring rods are distributed around the third positioning sleeves in a circular array, and the distances between two adjacent third positioning sleeves are equal.

[0013] Preferably, a plurality of barrel legs are distributed on the second barrel in an annular array, and the barrel legs are welded to the second barrel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The driving motor drives the stirring shaft to rotate. On the one hand, the stirring rod along the length direction of the stirring shaft stirs the battery electrode raw materials in the processing barrel around the stirring shaft. On the other hand, when the first longitudinal stirring rod rotates with the stirring shaft, after the first longitudinal stirring rod contacts the spiral limiting boss on the inner wall of the processing barrel, the spiral limiting boss pushes the first longitudinal stirring rod and the stirring barrel to move upward in the vertical direction, so that the stirring barrel, the first longitudinal stirring rod and the second longitudinal stirring rod stir and mix the battery electrode raw materials in the vertical direction. When the spiral limiting boss is out of contact with the first longitudinal stirring rod, under the action of the first return spring, the first longitudinal stirring rod, the stirring barrel and the second longitudinal stirring rod move downward in the vertical direction, thereby forming a reciprocating motion to prevent some of the sedimentation in the second longitudinal stirring rod. The battery electrode raw materials at the bottom or bottom of the barrel cannot be stirred evenly, so that the entire battery electrode raw materials inside the processing barrel are fully stirred; the second return spring pushes the limit boss to move along the direction of the guide column, and then pushes the cleaning boss to move along the second slide groove until the cleaning boss is attached to the inner wall of the second barrel. When the arc plate rotates with the stirring shaft, the cleaning boss can further remove the battery electrode raw materials attached to the inner wall of the second barrel after precipitation, especially when the precipitates on the inner wall of the second barrel are in the form of particles of different sizes, the cleaning boss can move back and forth along the second slide groove and shrink to one side of the arc plate, gradually removing the precipitates on the inner wall of the second barrel, and the processing effect is good; the present invention is conducive to improving the fluidity and mixing uniformity of the raw materials, thereby ensuring the quality of the battery electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a schematic structural diagram of a battery electrode processing device according to an embodiment of the present invention; Figure 2 2 is a schematic structural diagram of a processing barrel in an embodiment of the present invention; Figure 3 1 is a schematic diagram of the installation of the second stirring member in an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a mixing barrel according to an embodiment of the present invention; Figure 5 1 is a schematic diagram of the installation of the stirring rod assembly in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a second stirring member in an embodiment of the present invention; Figure 7 yes Figure 6 A partial enlarged schematic diagram; In the figure, 1, barrel cover, 2, first barrel, 3, second barrel, 4, stirring shaft, 5, drive motor, 6, first positioning sleeve, 7, spiral limiting boss, 8, horizontal stirring beam, 9, first longitudinal stirring rod, 10, sliding positioning sleeve, 11, second longitudinal stirring rod, 12, guide rod, 13, limiting block, 14, first return spring, 15, second positioning sleeve, 16, arc plate, 17, second stirring rod, 18, first Slide groove, 19, second slide groove, 20, sliding block, 21, cleaning protrusion, 22, guide column, 23, fixed plate, 24, limiting boss, 25, second return spring, 26, positioning rod, 27, fixed outer ring, 28, fixed inner ring, 29, horizontal positioning rod, 30, longitudinal positioning rod, 31, fixed screw, 32, first screw sleeve, 33, second screw sleeve, 34, third positioning sleeve, 35, stirring rod, 36, barrel support leg. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0017] See also Figure 1-7 As shown, a battery electrode processing device includes a processing barrel, a barrel cover 1 is provided on the top of the processing barrel, the processing barrel is composed of a first barrel 2 with a cylindrical structure and a second barrel 3 with a spherical structure, a stirring shaft 4 is provided inside the processing barrel, the upper end of the stirring shaft 4 is mounted on a drive motor 5, and the drive motor 5 is mounted on the barrel cover 1, and a plurality of stirring rod assemblies are distributed along the length direction of the stirring shaft 4; The stirring shaft 4 is provided with a first stirring member, which includes a first positioning sleeve 6, a spiral limiting boss 7 and a stirring barrel. The first positioning sleeve 6 is provided on the stirring shaft 4, and a transverse stirring beam 8 is provided on the outer wall. A first longitudinal stirring rod 9 is provided above the transverse stirring beam 8. One end of the first longitudinal stirring rod 9 is connected to a sliding positioning sleeve 10, and the sliding positioning sleeve 10 is sleeved on the stirring shaft 4. A second longitudinal stirring rod 11 symmetrical to the first longitudinal stirring rod 9 is provided on the outer wall. A guide rod 12 is provided at the bottom of the first longitudinal stirring rod 9. The lower end of the guide rod 12 passes through the guide hole on the transverse stirring beam 8 and is connected to a limiting block 13. A first return spring 14 sleeved on the guide rod 12 is provided between the stopper 13 and the horizontal stirring beam 8, and the stirring barrel is connected to the first longitudinal stirring rod 9 and the second longitudinal stirring rod 11 through a fixing assembly respectively. The spiral limiting boss 7 is provided on the inner wall of the first barrel 2. When the first longitudinal stirring rod 9 rotates with the stirring shaft 4, after the first longitudinal stirring rod 9 contacts the spiral limiting boss 7, the spiral limiting boss 7 pushes the first longitudinal stirring rod 9 and the stirring barrel to move upward in the vertical direction. After the spiral limiting boss 7 is out of contact with the first longitudinal stirring rod 9, under the action of the return spring 14, the first longitudinal stirring rod 9 and the stirring barrel move downward in the vertical direction; The first longitudinal stirring rod 9, the stirring barrel, and the second longitudinal stirring rod 11 form a reciprocating motion along the vertical direction to prevent the battery electrode raw materials that are partially deposited in the lower part or bottom of the second barrel 3 from being mixed evenly, so that the entire battery electrode raw materials in the processing barrel are fully mixed; A second stirring member is installed at the bottom of the stirring shaft 4, and the second stirring member is used to accelerate the fluidity of the material on the inner wall of the second barrel 3; One end of the first longitudinal stirring rod 9 is in an arc-shaped structure and fits against the inner wall of the first barrel 2. The length of the second longitudinal stirring rod 11 is shorter than that of the first longitudinal stirring rod 9. The second longitudinal stirring rod 11 always maintains a gap with the spiral limiting boss 7 during one rotation. The transverse stirring beam 8 is placed in a horizontal state and has a rectangular cross section; The stirring rod assembly includes a third positioning sleeve 34 and a stirring rod 35. The third positioning sleeve 34 is arranged on the stirring shaft 4. A plurality of stirring rods 35 are distributed on the outer wall. The stirring rods 35 are in an inclined state. The stirring rods 35 are distributed in a circular array around the third positioning sleeves 34, and the distance between two adjacent third positioning sleeves 34 is equal; The second stirring member includes a second positioning sleeve 15 and an arc-shaped plate 16. The second positioning sleeve 15 is arranged on the stirring shaft 4 and connected to the arc-shaped plate 16 through a second stirring rod 17. The arc-shaped first chute 18 is opened on the arc-shaped plate 16, and the outer wall is provided with an arc-shaped second chute 19 connected to the first chute 18. An arc-shaped sliding block 20 is provided in the first chute 18. A cleaning protrusion 21 passing through the second chute 19 is provided on one side of the sliding block 20, and the other side is connected to the guide column 2 2. One end of the guide column 22 passes through the first through hole on the curved plate 16 and the second through hole on the fixed plate 23 in sequence. A limiting boss 24 is provided on the guide column 22. A second return spring 25 is provided between the limiting boss 24 and the fixed plate 23 and is sleeved on the guide column 22. The second return spring 25 pushes the cleaning protrusion 21 to move along the second chute 19 until the cleaning protrusion 21 is attached to the inner wall of the second barrel 3. The fixed plate 23 is connected to the curved plate 16 via a positioning rod 26. The outer end of the cleaning protrusion 21 is provided with a cleaning layer made of soft material; On the one hand, the curved plate 16 rotates with the stirring shaft 4, stirring the raw materials at the bottom of the second barrel 3. On the other hand, the cleaning protrusion 21 can further remove the battery electrode raw materials that have settled and adhered to the inner wall of the second barrel 3. In particular, when the sediment on the inner wall of the second barrel 3 is in the form of particles of different sizes, the cleaning protrusion 21 can reciprocate along the second chute 19 and retract toward the side of the curved plate 16, gradually removing the sediment on the inner wall of the second barrel 3. The mixing barrel includes two fixed outer rings 27 distributed in the vertical direction. A fixed inner ring 28 is provided inside each of the fixed outer rings 27. A plurality of transverse positioning rods 29 are evenly distributed between the fixed outer rings 27 and the fixed inner rings 28. The two fixed outer rings 27 are connected by a plurality of longitudinal positioning rods 30. The fixed inner ring 28 passes through the mixing shaft 4. The fixing assembly includes a fixing screw 31 and a first screw sleeve 32 respectively provided on the first longitudinal stirring rod 9 and the second longitudinal stirring rod 11. A second screw sleeve 33 is provided on the fixed outer ring 27 located above the transverse stirring beam 8. The upper end of the fixing screw 31 is inserted into the screw hole on the first longitudinal stirring rod 9 or the second longitudinal stirring rod 11, the first screw sleeve 32 and the second screw sleeve 33 in sequence. One end of the limit bolt passes through the first screw sleeve 32 and the fixing screw 31 and is connected to the locking nut. A plurality of barrel legs 36 are distributed on the second barrel 3 in a circular array, and the barrel legs 36 are welded to the second barrel 3. The third positioning sleeve 34 and the stirring shaft 4, the first positioning sleeve 6 and the stirring shaft 4, and the second positioning sleeve 15 and the stirring shaft 4 can be connected by screws or welding.

[0018] The driving motor 5 drives the stirring shaft 4 to rotate. On the one hand, the stirring rod 35 along the length direction of the stirring shaft 4 stirs the battery electrode raw materials in the processing barrel around the stirring shaft 4. On the other hand, when the first longitudinal stirring rod 9 rotates with the stirring shaft 4, the first longitudinal stirring rod 9 contacts the spiral limiting boss 7 on the inner wall of the second barrel 3, and the spiral limiting boss 7 pushes the first longitudinal stirring rod 9 and the stirring barrel to move upward in the vertical direction, so that the stirring barrel, the first longitudinal stirring rod 9 and the second longitudinal stirring rod 11 stir and mix the battery electrode raw materials in the vertical direction. When the spiral limiting boss 7 is out of contact with the first longitudinal stirring rod 9, under the action of the first return spring 14, the first longitudinal stirring rod 9, the stirring barrel and the second longitudinal stirring rod 11 move downward in the vertical direction, thereby forming a reciprocating motion to avoid partial precipitation in the second barrel. 3, the battery electrode raw materials at the lower part or bottom cannot be stirred evenly, so that the entire battery electrode raw materials inside the processing barrel are fully stirred; the second return spring 25 pushes the limiting boss 24 to move along the direction of the guide column 22, and then pushes the cleaning protrusion 21 to move along the second slide 19 until the cleaning protrusion 21 is attached to the inner wall of the second barrel 3. When the curved plate 16 rotates with the stirring shaft 4, the cleaning protrusion 21 can further remove the battery electrode raw materials attached to the inner wall of the second barrel 3 after precipitation. In particular, when the precipitates on the inner wall of the second barrel 3 are in the form of particles of different sizes, the cleaning protrusion 21 can move back and forth along the second slide 19 and retract to one side of the curved plate 16, gradually removing the precipitates on the inner wall of the second barrel 3, and the processing effect is good. The present invention is conducive to improving the fluidity and mixing uniformity of the raw materials, thereby ensuring the quality of the battery electrodes.

[0019] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A battery electrode processing device, comprising a processing barrel, wherein a barrel cover is provided on the top of the processing barrel, characterized in that: The processing barrel is composed of a first barrel with a cylindrical structure and a second barrel with a spherical structure. A stirring shaft is provided inside the processing barrel. The upper end of the stirring shaft is mounted on a drive motor, and the drive motor is mounted on a barrel top cover. A plurality of stirring rod assemblies are distributed along the length direction of the stirring shaft. The stirring shaft is provided with a first stirring member, the first stirring member includes a first positioning sleeve, a spiral limiting boss and a stirring barrel, the first positioning sleeve is arranged on the stirring shaft, a transverse stirring beam is arranged on the outer wall, a first longitudinal stirring rod is arranged above the transverse stirring beam, one end of the first longitudinal stirring rod is connected to the sliding positioning sleeve, the sliding positioning sleeve is arranged on the stirring shaft, a second longitudinal stirring rod symmetrical to the first longitudinal stirring rod is arranged on the outer wall, a guide rod is arranged at the bottom of the first longitudinal stirring rod, the lower end of the guide rod passes through the guide hole on the transverse stirring beam and is connected to a limited stop block, the limit stop A first return spring sleeved on the guide rod is provided between the block and the transverse stirring beam, the stirring barrel is respectively connected to the first longitudinal stirring rod and the second longitudinal stirring rod through a fixing assembly, the spiral limiting boss is provided on the inner wall of the first barrel, and when the first longitudinal stirring rod rotates with the stirring shaft, after the first longitudinal stirring rod contacts the spiral limiting boss, the spiral limiting boss pushes the first longitudinal stirring rod and the stirring barrel to move upward in the vertical direction, and after the spiral limiting boss disengages from the first longitudinal stirring rod, under the action of the return spring, the first longitudinal stirring rod and the stirring barrel move downward in the vertical direction; A second stirring member is installed at the bottom of the stirring shaft, and the second stirring member is used to accelerate the fluidity of the material at the inner wall of the second barrel.

2. A battery electrode processing device according to claim 1, characterized in that: The second stirring member includes a second positioning sleeve and an arc plate, the second positioning sleeve is arranged on the stirring shaft and is connected to the arc plate through the second stirring rod, the arc plate is provided with a first arc-shaped slide groove, and an arc-shaped second slide groove connected to the first slide groove is provided on the outer wall, an arc-shaped sliding block is provided in the first slide groove, one side of the sliding block is provided with a cleaning protrusion passing through the second slide groove, and the other side is connected to the guide column, one end of the guide column passes through the first through hole in the arc plate and the second through hole in the fixed plate in sequence, and a limiting boss is provided on the guide column, and a second return spring sleeved on the guide column is provided between the limiting boss and the fixed plate, and the second return spring pushes the cleaning protrusion to move along the second slide groove until the cleaning protrusion is attached to the inner wall of the second barrel, and the fixed plate is connected to the arc plate through the positioning rod.

3. A battery electrode processing device according to claim 2, characterized in that: The outer end of the cleaning protrusion is provided with a cleaning layer made of soft material.

4. The battery electrode processing device according to claim 1, characterized in that: The mixing barrel includes two fixed outer rings distributed in the vertical direction, and a fixed inner ring is arranged inside the two fixed outer rings. A plurality of transverse positioning rods are evenly distributed between the fixed outer rings and the fixed inner rings. The two fixed outer rings are connected by a plurality of longitudinal positioning rods, and the fixed inner ring passes through the mixing shaft.

5. The battery electrode processing device according to claim 4, characterized in that: The fixing assembly includes a fixing screw and a first sleeve respectively arranged on the first longitudinal stirring rod and the second longitudinal stirring rod. A second sleeve is arranged on the fixed outer ring above the transverse stirring beam. The upper end of the fixing screw is inserted into the screw hole, the first sleeve and the second sleeve on the first longitudinal stirring rod or the second longitudinal stirring rod in sequence. One end of the limiting bolt passes through the first sleeve and the fixing screw and is connected to the locking nut.

6. The battery electrode processing device according to claim 1, characterized in that: One end of the first longitudinal stirring rod is in an arc shape and fits against the inner wall of the first barrel. The length of the second longitudinal stirring rod is smaller than that of the first longitudinal stirring rod. The second longitudinal stirring rod always maintains a gap with the spiral limiting boss during one rotation.

7. The battery electrode processing device according to claim 1, characterized in that: The transverse stirring beam is placed in a horizontal state and has a rectangular cross section.

8. The battery electrode processing device according to claim 1, characterized in that: The stirring rod assembly includes a third positioning sleeve and a stirring rod. The third positioning sleeve is arranged on the stirring shaft. A plurality of stirring rods are distributed on the outer wall. The stirring rods are in an inclined state.

9. The battery electrode processing device according to claim 8, characterized in that: The stirring rods are distributed around the third positioning sleeves in a circular array, and the distances between two adjacent third positioning sleeves are equal.

10. The battery electrode processing device according to claim 1, characterized in that: A plurality of barrel legs are distributed on the second barrel in a circular array, and the barrel legs are welded to the second barrel.

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