Graphite negative electrode material coating mechanism

Abstract

The graphite cathode material coating mechanism comprises a coating bin, a rotation control motor, a rotating plate, a movable heating assembly and a lifting motor, the rotating control motor drives the rotating plate to rotate, so that the movable heating assembly can be driven to rotate synchronously, the multiple heat conduction sleeves and the multiple heating pipes can be driven to rotate synchronously, and circumferential uniform heat conduction and heating are achieved through rotation of the multiple heat conduction sleeves and the multiple heating pipes; meanwhile, the two moving blocks are driven by the adjusting motor to move relatively, so that the moving blocks are driven to move relatively, a plurality of heat conduction sleeves and a plurality of heating pipes are driven to move relatively and horizontally, the circumferential path of rotation can be adjusted, the adjustability of a heating area is realized, and the heating uniformity of the graphite negative electrode material is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of processing and preparation of graphite anode materials, and particularly relates to a coating mechanism for graphite anode materials. Background Technology

[0002] Lithium-ion battery anode materials are made by mixing carbon-based or non-carbon-based anode active materials, binders, and additives to form a paste-like adhesive, which is then evenly coated on both sides of copper foil and dried and rolled. During the charging and discharging process, the interlayer spacing of graphite in lithium-ion battery carbon anode materials changes, which can easily cause graphite layer peeling and pulverization. Lithium and organic solvents can also co-intercalate into the graphite layer, and organic solvents can decompose, affecting the battery's cycle performance. By modifying graphite and coating the graphite surface with high-softening-point asphalt, the compatibility between the anode material and the electrolyte can be improved, preventing solvent co-intercalation, decomposition, and graphite structure peeling. In existing technologies, graphite and asphalt are generally mixed and coated in a mixing device, and then carbonized in a kiln for a long time, so that the asphalt covers the surface of the graphite particles. However, existing devices often cannot achieve uniform heating, resulting in uneven carbonization and affecting the stability of the graphite anode material coating. Therefore, it is necessary to upgrade the structure to improve the stability, uniformity, and consistency of heating. Utility Model Content

[0003] To address the shortcomings of the existing technology, the present invention provides a graphite anode material coating mechanism that is heat-stable and uniform.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A graphite anode material coating mechanism includes a coating chamber, a rotary control motor, a rotating plate, a movable heating assembly, and a lifting motor. A rotating plate is installed inside the coating chamber. The rotary control motor is installed at the upper center of the coating chamber and drives the rotating plate to rotate. The movable heating assembly is installed on the rotating plate and includes an adjusting motor, moving blocks, heat-conducting sleeves, heating tubes, and a connecting frame. The adjusting motor is installed on the rotating plate. Moving blocks are slidably installed at both ends of the lower side of the rotating plate. The adjusting motor drives the two moving blocks to move relative to each other. Two heat-conducting sleeves are installed on the lower side of each moving block. A heating tube is inserted into the lower side of each heat-conducting sleeve. The connecting frame is rotatably installed inside the lower part of the coating chamber, and the lower ends of multiple heating tubes are slidably installed on the connecting frame. A lifting motor is installed on each side of the coating chamber, and the two lifting motors drive the rotating plate to move up and down, causing the heat-conducting sleeves to move up and down on the heating tubes.

[0006] Furthermore, the interior of the covering chamber is provided with an annular groove around its perimeter; a lifting ring is installed vertically within the annular groove; a longitudinal lead screw is rotatably installed on each side of the annular groove, and the longitudinal lead screw is threadedly connected to the side of the lifting ring; the upper end of the longitudinal lead screw is connected to a lifting motor, and the lifting motor drives the longitudinal lead screw to rotate in a positive direction; the rotating plate is rotatably installed within the lifting ring.

[0007] Furthermore, the rotary control motor has a drive shaft on its lower side, and a positioning shaft at the lower end of the drive shaft; a lifting sleeve is provided in the middle of the upper end of the rotating plate; the lifting sleeve is slidably sleeved on the positioning shaft; the inner cavity of the lifting sleeve and the cross-section of the positioning shaft are both rectangular.

[0008] Furthermore, sliding cylinders are respectively provided on both sides of the upper end of the rotating plate; a limiting post is sleeved on the upper end of the sliding cylinder; a positioning ring is provided inside the upper part of the covering chamber, and the upper ends of the two limiting posts are synchronously rotated and connected to the positioning ring.

[0009] Furthermore, a horizontal slide rail is provided on the lower side of the rotating plate; a transverse lead screw is rotatably mounted on the horizontal slide rail, and two moving blocks are threaded through the transverse lead screw; the outer end of the transverse lead screw is connected to an adjusting motor, and the adjusting motor drives the transverse lead screw to rotate in both directions.

[0010] Furthermore, the lifting motor, adjusting motor, and rotation control motor are all controlled by external controller signals.

[0011] Furthermore, the connecting frame is provided with a strip-shaped sliding opening; sliding slots are provided on both sides of the strip-shaped sliding opening; the front and rear of the heating tube are respectively slidably engaged with the sliding slots by moving protrusions.

[0012] Furthermore, the connecting frame is provided with a rotating ring around its perimeter; the rotating ring is rotatably connected to the lower perimeter of the inner part of the covering chamber.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a rotary control motor to drive a rotating plate to rotate, which in turn drives a movable heating component to rotate synchronously. This, in turn, drives multiple heat-conducting sleeves and multiple heating tubes to rotate synchronously. Through the rotation of multiple heat-conducting sleeves and multiple heating tubes, uniform heat conduction and heating in the circumferential direction is achieved. At the same time, by adjusting the motor to drive two moving blocks to move relative to each other, the relative movement of the moving blocks drives multiple heat-conducting sleeves and multiple heating tubes to move relatively horizontally. This allows for adjustment of the circumferential path of rotation, achieving adjustability of the heating area and greatly improving the heating uniformity of the graphite anode material.

[0015] 2. This utility model can drive the rotating plate to move up and down through two lifting motors. At the same time, the rotating plate drives the heat-conducting sleeve to move up and down on the heating tube. In this way, the injection height can be reasonably adjusted according to different graphite anode materials, avoiding the heat-conducting sleeve and heating tube being higher than the height of the graphite anode material, thus preventing heat loss. This allows for full utilization of heat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the upper side of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure on the other side of the upper part of this utility model.

[0019] Figure 4 This is a top view of the connecting frame and heating tube of this utility model. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown, a graphite anode material coating mechanism includes a coating chamber 1, a rotary control motor 2, a rotating plate 3, a movable heating assembly 4, and a lifting motor 5. A rotating plate 3 is installed inside the coating chamber 1. The rotary control motor 2 is installed at the upper center of the coating chamber 1. The rotary control motor 2 drives the rotating plate 3 to rotate. The movable heating assembly 4 is installed on the rotating plate 3. The movable heating assembly 4 includes an adjusting motor 41, a moving block 42, a heat-conducting sleeve 43, a heating tube 44, and a connecting frame 45. The adjusting motor 41 is installed on the rotating plate 3. A movable block 42 is slidably installed at each of the lower ends of the plate 3; the adjusting motor 41 drives the two movable blocks 42 to move relative to each other; two heat-conducting sleeves 43 are installed on the lower side of the movable blocks 42; a heating tube 44 is inserted into the lower side of each heat-conducting sleeve 43; the connecting frame 45 is rotatably installed inside the lower part of the covering chamber 1, and the lower ends of the multiple heating tubes 44 are slidably installed on the connecting frame 45; a lifting motor 5 is installed on each side of the covering chamber 1, and the two lifting motors 5 drive the rotating plate 3 to move up and down, and the rotating plate 3 drives the heat-conducting sleeves 43 to move up and down on the heating tubes 44.

[0022] like Figures 1 to 4As shown, in order for the lifting motor 5 to drive the rotating plate 3 to lift, the inner perimeter of the covering chamber 1 is provided with an annular groove 11; a lifting ring 6 is installed vertically within the annular groove 11; a longitudinal screw 61 is rotatably installed on both sides of the annular groove 11, and the longitudinal screw 61 is threadedly connected to the side of the lifting ring 6; the upper end of the longitudinal screw 61 is connected to the lifting motor 5, and the lifting motor 5 drives the longitudinal screw 61 to rotate in a positive direction; the rotating plate 3 is rotatably installed within the lifting ring 6.

[0023] like Figures 1 to 4 As shown, in order for the rotating plate 3 to move up and down, the lower side of the rotation control motor 2 is provided with a drive shaft 21, and the lower end of the drive shaft 21 is provided with a positioning shaft 22; the upper middle of the rotating plate 3 is provided with a lifting sleeve 31; the lifting sleeve 31 is slidably sleeved on the positioning shaft 22; the inner cavity of the lifting sleeve 31 and the cross section of the positioning shaft 22 are both rectangular.

[0024] like Figures 1 to 4 As shown, in order to improve the stability of the rotation and lifting of the rotating plate 3, the upper ends of the rotating plate 3 are respectively provided with sliding cylinders 32; the upper ends of the sliding cylinders 32 are fitted with limiting posts 33; the upper part of the covering chamber 1 is provided with a positioning ring 12, and the upper ends of the two limiting posts 33 are synchronously rotated and connected to the positioning ring 12.

[0025] like Figures 1 to 4 As shown, in order to adjust the motor 41 to drive the heat-conducting sleeve 43 and the heating tube 44 to move horizontally, a horizontal slide rail 34 is provided on the lower side of the rotating plate 3; a transverse lead screw 35 is rotatably mounted on the horizontal slide rail 34, and the transverse lead screw 35 is threaded through two moving blocks 42; the outer end of the transverse lead screw 35 is connected to the adjusting motor 41, and the adjusting motor 41 drives the transverse lead screw 35 to rotate in both directions.

[0026] like Figures 1 to 4 As shown, for ease of control, the lifting motor 5, the adjusting motor 41, and the rotation control motor 2 are all controlled by external controller signals.

[0027] like Figures 1 to 4 As shown, to facilitate stable horizontal and rotational support for the heating tube 44, the connecting frame 45 is further provided with a strip-shaped sliding opening 451; sliding slots 452 are respectively provided on both sides of the strip-shaped sliding opening 451; the front and rear of the heating tube 44 are slidably engaged with the sliding slots 452 by moving locking protrusions 441. Furthermore, a rotating ring 453 is provided around the connecting frame 45; the rotating ring 453 is rotatably connected to the lower interior periphery of the covering chamber 1.

[0028] This invention uses a rotary control motor 2 to drive a rotating plate 3 to rotate, which in turn drives a movable heating component 4 to rotate synchronously. This, in turn, drives multiple heat-conducting sleeves 43 and multiple heating tubes 44 to rotate synchronously. Through the rotation of multiple heat-conducting sleeves 43 and multiple heating tubes 44, uniform heat conduction and heating in the circumferential direction is achieved. At the same time, by adjusting the motor 41 to drive two moving blocks 42 to move relative to each other, the relative movement of the moving blocks 42 drives the multiple heat-conducting sleeves 43 and multiple heating tubes 44 to move relatively horizontally. This allows for adjustment of the circumferential path of rotation, achieving adjustability of the heating area and greatly improving the heating uniformity of the graphite anode material.

[0029] This invention can drive the rotating plate 3 to move up and down using two lifting motors 5. At the same time, the rotating plate 3 drives the heat-conducting sleeve 43 to move up and down on the heating tube 44. This allows for reasonable adjustment based on the injection height of different graphite anode materials, preventing the heat-conducting sleeve 43 and the heating tube 44 from being higher than the height of the graphite anode material, thus avoiding heat loss. This allows for full utilization of heat.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A graphite anode material coating mechanism, characterized in that, The device includes a coating chamber, a rotary control motor, a rotating plate, a movable heating assembly, and a lifting motor. A rotating plate is installed inside the coating chamber. The rotary control motor is installed at the upper center of the coating chamber and drives the rotating plate to rotate. The movable heating assembly is installed on the rotating plate and includes an adjusting motor, moving blocks, heat-conducting sleeves, heating tubes, and a connecting frame. The adjusting motor is installed on the rotating plate. A moving block is slidably installed at each of the lower ends of the rotating plate. The adjusting motor drives the two moving blocks to move relative to each other. Two heat-conducting sleeves are installed on the lower sides of each moving block. A heating tube is inserted into the lower side of each heat-conducting sleeve. The connecting frame is rotatably installed inside the lower part of the coating chamber, and the lower ends of multiple heating tubes are slidably installed on the connecting frame. A lifting motor is installed on each side of the coating chamber, and the two lifting motors drive the rotating plate to move up and down, causing the heat-conducting sleeves to move up and down on the heating tubes.

2. The graphite anode material coating mechanism according to claim 1, characterized in that, The inside of the coating chamber is provided with an annular groove; a lifting ring is installed and moved up and down in the annular groove; a longitudinal screw is rotatably installed on both sides of the annular groove, and the longitudinal screw is threaded to the side of the lifting ring; the upper end of the longitudinal screw is connected to a lifting motor, and the lifting motor drives the longitudinal screw to rotate in a positive direction; the rotating plate is rotatably installed in the lifting ring.

3. The graphite anode material coating mechanism according to claim 2, characterized in that, The rotary control motor has a drive shaft on its lower side, and a positioning shaft at the lower end of the drive shaft; a lifting sleeve is provided at the middle of the upper end of the rotating plate; the lifting sleeve is slidably sleeved on the positioning shaft; the inner cavity of the lifting sleeve and the cross-section of the positioning shaft are both rectangular.

4. The graphite anode material coating mechanism according to claim 2, characterized in that, The upper ends of the rotating plate are respectively provided with sliding cylinders on both sides; the upper ends of the sliding cylinders are fitted with limiting posts; the upper part of the coating chamber is provided with a positioning ring, and the upper ends of the two limiting posts are synchronously rotated and connected to the positioning ring.

5. The graphite anode material coating mechanism according to claim 1, characterized in that, The lower side of the rotating plate is provided with a horizontal slide rail; a transverse lead screw is rotatably mounted on the horizontal slide rail, and the transverse lead screw is threaded through two moving blocks; the outer end of the transverse lead screw is connected to an adjusting motor, and the adjusting motor drives the transverse lead screw to rotate in both directions.

6. The graphite anode material coating mechanism according to claim 1, characterized in that, The lifting motor, adjusting motor, and rotary control motor are all controlled by external controller signals.

7. The graphite anode material coating mechanism according to claim 1, characterized in that, The connecting frame is provided with a strip-shaped sliding opening; sliding slots are provided on both sides of the strip-shaped sliding opening; the front and rear of the heating tube are respectively slidably engaged with the sliding slots by moving protrusions.

8. The graphite anode material coating mechanism according to claim 1, characterized in that, The connecting frame is provided with rotating rings around its perimeter; the rotating rings are rotatably connected to the lower perimeter of the inner part of the covering chamber.

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