Mixing device for producing positive electrode material of lithium ion battery

Abstract

The utility model discloses a mixing device for producing a lithium ion battery positive electrode material, which relates to the field of mixing devices and comprises an upper supporting plate with supporting legs at four corners of the bottom, a round hole is formed in the center of the upper supporting plate, and an upper cover is fixedly connected to the inner wall of the round hole. The bottom of the upper cover penetrates to the position below the upper supporting plate, and a stirring mechanism is installed on the upper cover. A lower supporting plate is arranged under the upper cover, electric push cylinders are fixedly installed on protruding parts on the two sides of the lower supporting plate, the output ends of the electric push cylinders are connected with fixing lugs, the inner sides of the two fixing lugs are fixedly connected with a supporting barrel, and a top frame mechanism penetrating into the supporting barrel is installed at the top end of the lower supporting plate. The top frame mechanism is used for facilitating feeding and discharging. By arranging the top frame mechanism, feeding and discharging of the feeding barrel are facilitated, and compared with the prior art, the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of material mixing devices, in particular to a material mixing device used for the production of positive electrode materials for lithium ion batteries. Background Art

[0002] The positive electrode raw materials of lithium-ion batteries include active materials, conductive agents, dispersants, binders, additives, etc. During preparation, a mixing device (such as a stirring device) is required to mix the various raw materials evenly.

[0003] Existing mixing devices include integrated mixing devices and split mixing devices. Compared with the integrated mixing device, the split mixing device has the advantage of being easy to clean and maintain.

[0004] However, the existing split-type mixing device needs to shut down and wait for a long time when loading or unloading materials. Under the current development trend of new energy, the output of new energy batteries cannot keep up with the demand, so there is room for further improvement in work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a mixing device for producing positive electrode materials for lithium-ion batteries in order to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixing device for the production of positive electrode materials for lithium-ion batteries, comprising an upper support plate with support legs at the four corners of the bottom, a circular hole is opened at the center of the upper support plate, an upper cover is fixedly connected to the inner wall of the circular hole, the bottom of the upper cover passes through the bottom of the upper support plate, and a stirring mechanism is installed on the upper cover;

[0007] A lower support plate is arranged just below the upper cover, and electric push cylinders are fixedly installed on the protruding parts on both sides of the lower support plate, and the output end of the electric push cylinder is connected with a fixing ear, and the inner sides of the two fixing ears are fixedly connected with a support barrel, and a top frame mechanism penetrating into the interior of the support barrel is installed on the top of the lower support plate;

[0008] The top frame mechanism is used to facilitate loading and unloading of materials.

[0009] As a further solution of the utility model: the stirring mechanism includes a rotating motor fixedly mounted on the top of the upper cover, and the output end of the rotating motor is connected to a stirrer that penetrates the upper cover and extends to the bottom of the upper cover.

[0010] As a further solution of the utility model: the top frame mechanism includes a top rod fixedly mounted on the top of the lower support plate, the top rod penetrates into the interior of the support barrel, the top of the top rod is fixedly connected to a top plate, the top of the top plate supports a raw material barrel, and the raw material barrel is used to hold raw materials;

[0011] The outer wall of the raw material barrel is slidably connected to the support barrel up and down through a sliding mechanism.

[0012] As a further solution of the utility model: the sliding mechanism includes a limiting slide groove vertically opened on the inner periphery of the support barrel and a limiting slider integrally formed with the outer periphery of the raw material barrel, and the limiting slider is connected to the inner wall of the limiting slide groove in an up-and-down sliding manner;

[0013] The outer tops of the two left-right symmetrical limit sliding blocks are integrally formed with forklift ears protruding outwards, and the forklift ears are in a "C"-shaped structure.

[0014] As a further solution of the utility model: a receiving groove for receiving the forklift ear is provided on the top of the support barrel, and the outer circumference of the receiving groove coincides with the inner circumference of the forklift ear.

[0015] As a further solution of the utility model: a through hole is opened at the center of the bottom of the support barrel, and the diameter of the through hole is larger than the diameter of the top plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting up the top frame mechanism, the loading and unloading of the loading barrel is facilitated, and compared with the existing technology, the work efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a connection schematic diagram of the limit slider of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the raw material barrel of the utility model.

[0021] In the figure: 1. upper support plate; 2. support legs; 3. upper cover; 4. rotating motor; 5. agitator; 6. lower support plate; 7. electric push cylinder; 8. fixing ears; 9. support barrel; 10. raw material barrel; 11. push rod; 12. receiving groove; 13. limit slider; 14. forklift ear; 15. top plate; 16. limit slide groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 to Figure 3 In an embodiment of the utility model, a mixing device for producing positive electrode materials for lithium-ion batteries comprises an upper support plate 1 with support legs 2 at the four corners of the bottom, a circular hole is opened at the center of the upper support plate 1, an upper cover 3 is fixedly connected to the inner wall of the circular hole, the bottom of the upper cover 3 penetrates to the bottom of the upper support plate 1, and a stirring mechanism is installed on the upper cover 3; a lower support plate 6 is arranged directly below the upper cover 3, electric push cylinders 7 are fixedly installed on the protruding parts on both sides of the lower support plate 6, a fixing ear 8 is connected to the output end of the electric push cylinder 7, a supporting barrel 9 is fixedly connected to the inner side of the two fixing ears 8, and a top frame mechanism penetrating into the inside of the supporting barrel 9 is installed on the top of the lower support plate 6; the top frame mechanism is used to facilitate loading and unloading.

[0024] In this embodiment: first, when the positive electrode material of the lithium-ion battery is uniformly mixed, the electric push cylinder 7 is started, and the electric push cylinder 7 pushes the support barrel 9 to move upward through the fixing ear 8 until the support barrel 9 contacts the bottom end surface of the upper cover 3 and forms an effective extrusion force. At this time, the sealing ring on the top of the upper cover 3 is deformed by the extrusion force, and the gap between the two is blocked to ensure the sealing during the mixing process;

[0025] Afterwards, the stirring mechanism is started, and the rotating stirring mechanism can fully mix the positive electrode material of the lithium-ion battery.

[0026] Please refer to Figure 1 The stirring mechanism includes a rotating motor 4 fixedly mounted on the top of the upper cover 3 , and an output end of the rotating motor 4 is connected to a stirrer 5 that penetrates the upper cover 3 and extends to the bottom of the upper cover 3 .

[0027] In this embodiment: by starting the rotary motor 4, the rotary motor 4 drives the stirrer 5 to rotate, and the stirrer 5 rotates at a high speed to fully mix the positive electrode raw materials of the lithium-ion battery.

[0028] Please refer to Figure 1 and Figure 3 The top frame mechanism includes a top rod 11 fixedly installed on the top of the lower support plate 6, the top rod 11 penetrates into the interior of the support barrel 9, the top of the top rod 11 is fixedly connected to a top plate 15, the top of the top plate 15 supports a raw material barrel 10, and the raw material barrel 10 is used to hold raw materials; the outer wall of the raw material barrel 10 is connected to the support barrel 9 by a sliding mechanism.

[0029] In this embodiment: when the support barrel 9 is at the lowest position (i.e., the bottom end of the support barrel 9 contacts the top of the lower support plate 6), the raw material barrel 10 containing the positive electrode raw material is transferred to the top of the support barrel 9 by a forklift, and then the raw material barrel is slowly lowered, and the raw material barrel 10 moves downward until the bottom of the raw material barrel 10 contacts the top of the top plate 15, at which time the raw material barrel 10 no longer moves, and the forklift withdraws;

[0030] When the electric push cylinder 7 is running, the electric push cylinder 7 pushes the support barrel 9 upward through the fixed ear 8 until the bottom plate of the support barrel 9 and the top plate 15 are at the same height. At this time, the bottom plate of the support barrel 9 contacts the bottom of the raw material barrel 10, and the support barrel 9 that continues to move upward can drive the raw material barrel 10 to move upward synchronously.

[0031] Please refer to Figure 2 and Figure 3 The sliding mechanism includes a limiting slide groove 16 vertically opened on the inner periphery of the support barrel 9 and a limiting slider 13 integrally formed with the outer periphery of the raw material barrel 10. The limiting slider 13 is connected to the inner wall of the limiting slide groove 16 by sliding up and down; the outer top of the two symmetrical limiting sliders 13 is integrally formed with a forklift ear 14 protruding outward, and the forklift ear 14 is in a "C" shape. The top of the support barrel 9 is provided with a receiving groove 12 for accommodating the forklift ear 14, and the outer periphery of the receiving groove 12 coincides with the inner periphery of the forklift ear 14.

[0032] In this embodiment: when the forklift drives the raw material barrel 10 for transportation, the fork bar of the forklift is connected with the forklift ear 14 to facilitate the transportation of the raw material barrel 10;

[0033] When the raw material barrel 10 moves to the top of the support barrel 10, it is necessary to pay attention to whether the limit slider 13 is aligned with the limit slide groove 16. After the limit slider 13 is aligned with the limit slide groove 16, the raw material barrel 10 is slowly lowered;

[0034] When the support barrel 9 drives the raw material barrel 10 to move upward, the top of the raw material barrel 10 is flush with the top of the support barrel 9, and the forklift ear 14 completely enters the accommodating groove 12, which can avoid the influence of the forklift ear 14 on the connection between the support barrel 9 and the bottom of the upper cover 3.

[0035] Please refer to Figure 3 A through hole is opened at the center of the bottom of the support barrel 9, and the diameter of the through hole is larger than the diameter of the top plate 15.

[0036] In this embodiment, when the support barrel 9 is moved upward, the support barrel 9 is flush with the top plate 15 , and the top plate 15 is located in the through hole, thereby preventing the top plate 15 from affecting the upward movement of the support barrel 9 .

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mixing device for producing positive electrode materials for lithium-ion batteries, comprising an upper support plate (1) having support legs (2) at four corners of the bottom, characterized in that: A circular hole is provided at the center of the upper support plate (1), an upper cover (3) is fixedly connected to the inner wall of the circular hole, the bottom of the upper cover (3) passes through the bottom of the upper support plate (1), and a stirring mechanism is installed on the upper cover (3); A lower support plate (6) is arranged directly below the upper cover (3), and electric push cylinders (7) are fixedly installed on the protruding parts on both sides of the lower support plate (6), and the output end of the electric push cylinder (7) is connected to a fixing ear (8), and the inner sides of the two fixing ears (8) are fixedly connected to a support barrel (9), and a top frame mechanism that penetrates into the interior of the support barrel (9) is installed at the top end of the lower support plate (6); The top frame mechanism is used to facilitate loading and unloading of materials.

2. A mixing device for producing positive electrode materials for lithium-ion batteries according to claim 1, characterized in that: The stirring mechanism comprises a rotating motor (4) fixedly mounted on the top of the upper cover (3), and the output end of the rotating motor (4) is connected to a stirrer (5) that penetrates the upper cover (3) and extends to the bottom of the upper cover (3).

3. A mixing device for producing positive electrode materials for lithium-ion batteries according to claim 2, characterized in that: The top frame mechanism comprises a top rod (11) fixedly mounted on the top of the lower support plate (6), the top rod (11) penetrates into the interior of the support barrel (9), the top of the top rod (11) is fixedly connected to a top plate (15), the top of the top plate (15) supports a raw material barrel (10), and the raw material barrel (10) is used to contain raw materials; The outer wall of the raw material barrel (10) is slidably connected to the support barrel (9) up and down via a sliding mechanism.

4. A mixing device for producing positive electrode materials for lithium-ion batteries according to claim 3, characterized in that: The sliding mechanism comprises a limiting slide groove (16) vertically opened on the inner periphery of the support barrel (9) and a limiting slider (13) integrally formed with the outer periphery of the raw material barrel (10), and the limiting slider (13) is connected to the inner wall of the limiting slide groove (16) in an up-and-down sliding manner; The outer tops of the two left-right symmetrical limit sliding blocks (13) are integrally formed with forklift ears (14) protruding outwards, and the forklift ears (14) are in a "C"-shaped structure.

5. A mixing device for producing positive electrode materials for lithium-ion batteries according to claim 4, characterized in that: The top of the support barrel (9) is provided with a receiving groove (12) for receiving the forklift ear (14), and the outer periphery of the receiving groove (12) coincides with the inner periphery of the forklift ear (14).

6. A mixing device for producing positive electrode materials for lithium-ion batteries according to claim 5, characterized in that: A through hole is provided at the center of the bottom of the support barrel (9), and the diameter of the through hole is larger than the diameter of the top plate (15).

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