Graphite negative electrode material sintering process and sintering furnace thereof

Abstract

The application discloses a graphite negative electrode material sintering furnace, which comprises a bottom plate, a heating mechanism, a loading mechanism and a feeding mechanism, the heating mechanism is installed at the right side of the top of the bottom plate, the heating mechanism is used for heating and sintering graphite powder, the loading mechanism is arranged at the left side of the top of the bottom plate, and the loading mechanism is used for graphite powder loading, and the application relates to the technical field of graphite negative electrode material preparation. The graphite negative electrode material sintering furnace is provided with the loading mechanism and the feeding mechanism which are used in cooperation on the left side of the heating mechanism, the combination of the three mechanisms can make the top of the several butt joints coincide with the discharge port in sequence by using the rotation of the toothed disc, so that the powder in the inside of the storage tank enters the loading pipe, thereby completing the quantitative loading of the graphite powder, and the functions of the second roller and the first roller can complete feeding and subsequent discharging, and the whole process reduces manual intervention.

Description

Technical Field

[0001] This invention relates to the field of graphite anode material preparation technology, specifically to a graphite anode material sintering process and its sintering furnace. Background Technology

[0002] Lithium-ion batteries are rechargeable batteries that can be recharged and reused when the power is insufficient. They are mainly prepared using graphite micro powder with a particle size between 3μm and 30μm as the negative electrode material. The most important step in the preparation of graphite negative electrode materials is graphite sintering. Specifically, graphite powder is loaded into a graphite box and then sent into a sintering furnace for heating. Most existing sintering furnaces use an insulation layer on the outside of the furnace wall to prevent heat loss. However, after long-term use, the insulation material filled in the insulation layer will loosen, which can easily cause heat loss and poor temperature uniformity in the furnace, ultimately leading to a decrease in product qualification rate. Current patent documents have made improvements to address this issue.

[0003] For example, Chinese patent CN211782733U discloses a graphite anode material sintering furnace, relating to the technical field of graphite product processing equipment. It includes a hollow shell with an opening on one side, a support frame on the inner side of the bottom of the shell, and an inner liner on the support frame. The shell, except for the bottom and the opening direction, has perforated plates on its four inner sides, with multiple fixed frames connecting the perforated plates to the shell. An insulation layer is provided between the perforated plates and the shell. The bottom of the inner liner has multiple wedge-shaped grooves, smaller at the top and larger at the bottom, along its length. The top of the support frame has wedge-shaped sliding strips corresponding to the wedge-shaped grooves. Graphite cooling layers are provided on the outer sides and top of the inner liner along its length. This invention improves the stability of the insulation layer, prevents loosening and deformation of the insulation material, extends its service life, and makes replacing the insulation material more convenient. The external cooling circulation system of the graphite cooling layer enables timely and effective heat dissipation.

[0004] Although the aforementioned document improved the structure of the sintering furnace, its overall appearance and internal structure remain the same as those of sintering furnaces currently on the market. Functionally, it is relatively simple, serving as a standalone heating device. In the preparation process, the loading of graphite materials usually requires workers to quantitatively add the materials before feeding them into the sintering furnace. However, the sintering furnace is quite long, and each loading and subsequent unloading require the assistance of tools. The entire process involves numerous steps and is mostly operated manually, resulting in a significant waste of time between each step. Furthermore, as the working time increases, the probability of errors in powder loading also increases, which not only reduces sintering efficiency but also affects sintering quality.

[0005] Therefore, a multifunctional and efficient graphite anode material sintering furnace has been designed to address these shortcomings. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a sintering process for graphite anode materials and its sintering furnace, which solves the problems of current sintering furnaces having limited functionality, cumbersome pre-sintering preparation processes, and low efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sintering process for graphite anode materials, specifically comprising the following steps:

[0008] S1. Before use, pour the graphite powder into the inside of the storage box, then start the cylinder to raise the loading mechanism and feeding mechanism, and at the same time drive the sealing door to open the feed port of the sintering furnace body. Stop when the cylinder rises to the limit position. At this time, the two first bevel gears mesh. Then start the electric telescopic rod to push the transfer frame and guide frame to move to the left and extend into the inside of the sintering furnace body, and insert the polygonal rod into the inside of the polygonal cylinder. Then start the motor to switch to step S2 to carry out the feeding process.

[0009] S2. After the motor starts, it drives the first gear to rotate through the rotating rod. Since the first gear meshes with the toothed disc, it also drives the toothed disc to rotate. On the inner side of the linkage frame, the meshing of the three first bevel gears also causes the driven rod to drive the second gear to mesh with the second tooth groove, so that the ring seat and the toothed disc rotate counterclockwise synchronously and in the same direction. At the same time, under the transmission of the second pulley and the second belt, the connecting rod is driven to rotate, and through the meshing of the two first bevel gears, the crossbar is driven to rotate. The rotation of the crossbar drives the connecting rod, the first worm, the polygonal cylinder, the polygonal rod and the second worm to rotate through the transmission of the first pulley and the first belt. The rotation of the second worm and the first worm also drives several first worm wheels and second worm wheels to rotate synchronously, so that the second roller and the first roller rotate.

[0010] The rotation of the toothed disc causes the top interface to align sequentially with the discharge port. Graphite powder inside the storage box slides into the inner side of the loading tube through the discharge port and the interface. Because the bottom of the loading tube contacts the sealing plate, powder leakage is prevented. The graphite box is then placed on top of the annular conveyor belt. The annular seat drives the small gears to rotate via the first tooth groove, and the meshing of the two small gears causes the two clamping rollers to clamp the annular conveyor belt and drive it to rotate within the rotating frame, causing the graphite box at the top to rotate counterclockwise. The graphite box rotates synchronously with the loading tube, driven by the annular conveyor belt. Once the loading tube disengages from the sealing plate, the graphite powder inside slides into the inner side of the graphite box. When the graphite box rotates to the position of the bending groove, it moves to the top of the transfer frame. The rotation of the second roller moves the graphite box to the right and into the inner side of the sintering furnace body. Then, through the first roller... The transmission continues to move the graphite box to the far right of the sintering furnace body. When the graphite box reaches the far right of the inner cavity of the sintering furnace body and touches the inner wall, it is stopped. The continuous rotation of the first roller does not drive the graphite box to continue moving to the right. Then, after the subsequent graphite boxes are filled with graphite powder, they enter the inner side of the sintering furnace body in sequence through the transmission of the first roller and the transfer frame and come into contact with each other. When the graphite boxes inside the sintering furnace body are full, the motor stops rotating. Then, the electric telescopic rod is started to move the transfer frame to the right to separate the polygonal rod from the polygonal cylinder. Finally, the cylinder drives the loading mechanism and the feeding mechanism to descend so that the sealing door seals the sintering furnace body. The lifting plate separates the two first bevel gears under the limit of the sliding rod. After the sealing door is completely sealed, the sintering furnace body is started to heat and sinter it. After heating is completed and cooling is completed, the process is transferred to step S3 for the unloading process.

[0011] S3. After graphite sintering is completed, the cylinder is started to push the loading mechanism and feeding mechanism to rise and reopen the sealing door. At the same time, the polygonal rod and the polygonal cylinder are connected. Then the discharge port is sealed and the motor is started to reverse. Through the linkage between the second pulley and the connecting rod, the second roller and the first roller are reversed, moving several graphite boxes to the right out of the sintering furnace body and finally sliding out through the guide frame. After all the graphite boxes have slid out, the motor is started to rotate counterclockwise again and the discharge port is opened. Graphite boxes are fed again for the next batch of sintering. In S2 and S3, the second worm and the first worm are formed as a whole through the connection of the polygonal cylinder and the polygonal rod.

[0012] The present invention also discloses a graphite anode material sintering furnace, including a bottom plate, a heating mechanism, a loading mechanism and a feeding mechanism. The heating mechanism is installed on the right side of the top of the bottom plate and is used to heat and sinter graphite powder. The loading mechanism is located on the left side of the top of the bottom plate and is used to load graphite powder. The feeding mechanism is located below the loading mechanism and is used to feed the heating mechanism.

[0013] Preferably, the heating mechanism includes a sintering furnace body, which is mounted on the right side of the top of the base plate via a bracket. A heat-insulating frame is fixedly connected to the inner side of the sintering furnace body via a fixing block, and several heat-insulating frames are provided. A load-bearing recessed frame is fixedly connected to the inner side of each heat-insulating frame. A first roller is rotatably connected between the front and rear parts of the inner side of the load-bearing recessed frame via a bearing, and several first rollers are provided. The rear end of each first roller passes through the load-bearing recessed frame and extends into the inner cavity of the load-bearing recessed frame. A first worm gear is fixedly connected to one end of the first roller extending into the inner cavity of the load-bearing recessed frame. The right side of the inner cavity of the load-bearing recessed frame... A first worm gear meshing with a first worm wheel is rotatably connected to the side via a bearing component. A polygonal cylinder is fixedly connected to the left end of the first worm gear. The right end of the first worm gear passes through the load-bearing recess and the sintering furnace body in sequence and extends to the right side of the sintering furnace body. A connecting rod is fixedly connected to the end of the first worm gear extending to the right side of the sintering furnace body. A crossbar is rotatably connected to the bottom of the sintering furnace body. The right end of the crossbar and the connecting rod are connected by a first pulley and a first belt drive. A cylinder is fixedly connected to the rear part of the top of the bottom plate. A sealing door that cooperates with the sintering furnace body is fixedly connected to the top of the cylinder via a bracket.

[0014] Preferably, the loading mechanism includes a rotating cylinder, which is fixedly connected to the top of a cylinder via a bracket. A storage box is fixedly connected to the left side of the rotating cylinder via a bracket. A discharge port is provided at the bottom of the storage box. A vertical rod is rotatably connected to the inner side of the rotating cylinder. A toothed disc that cooperates with the storage box is fixedly connected to the bottom of the vertical rod. A mating interface that cooperates with the discharge port is provided on the outer periphery of the top of the toothed disc. Several mating interfaces are provided. A loading pipe is fixedly connected to the bottom of the mating interface. A motor is fixedly connected to the rear of the rotating cylinder.

[0015] Preferably, a linkage frame is fixedly connected to the left side of the cylinder and below the motor via a bracket. The output shaft of the motor is fixedly connected to a rotating rod via a coupling. The bottom end of the rotating rod passes through the linkage frame and extends to the inside of the linkage frame. A driven rod is rotatably connected to the bottom of the inner cavity of the linkage frame through an opening. A first bevel gear meshing with each other is provided at the opposite end of the rotating rod and the right side of the inner cavity of the linkage frame. A first gear meshing with a toothed disc is fixedly connected to the surface of the rotating rod and between the motor and the linkage frame. A second gear is fixedly connected to the surface of the driven rod.

[0016] Preferably, a sliding rod is fixedly connected to the rear side of the top of the base plate, and a lifting plate is slidably installed on the surface of the sliding rod. The top of the lifting plate is rotatably connected to the bottom end of the driven rod through a bearing component. A docking rod is rotatably connected to the left side of the top of the lifting plate through a bearing component. The docking rod and the driven rod are connected by a second pulley and a second belt drive. The top end of the docking rod and the right end of the crossbar are both fixedly connected to a first bevel gear that meshes with each other.

[0017] Preferably, the feeding mechanism includes a rotating frame, which is mounted on the lower part of the storage box via a bracket. A bending groove is provided on the right side of the rotating frame. A slider column is fixedly connected to the outer periphery of the bottom of the rotating frame. An annular seat is provided at the lower part of the rotating frame. An annular sliding groove that cooperates with the slider column is provided at the top of the annular seat. A first tooth groove is provided on the outer periphery of the top of the annular seat. A second tooth groove that meshes with a second gear is provided on the lower part of the surface of the annular seat. An annular conveyor belt is provided on the inner side of the annular conveyor belt. Guide rollers are rotatably connected to the front and rear parts of the inner cavity of the bending groove via a bracket, and the guide rollers are in contact with the annular conveyor belt.

[0018] Preferably, an electric telescopic rod is fixedly connected to the front and rear of the right side of the rotating frame, and a transfer frame is fixedly connected between the right ends of the two electric telescopic rods. The transfer frame is located inside the bending groove. The upper and lower parts of the annular conveyor belt, which are located inside the bending groove, are provided with meshing pinions. The pinions are fixedly connected to the right side of the rotating frame through a bracket. A clamping roller that cooperates with the annular conveyor belt is fixedly connected to the left side of the pinions. A sealing plate that cooperates with the loading pipe is fixedly connected to the left side of the top of the rotating frame through a bracket.

[0019] Preferably, a second roller is rotatably connected between the front and rear parts of the inner side of the transfer frame via a bearing, and several second rollers are provided. The rear end of the second roller passes through the transfer frame and extends into the inner cavity of the transfer frame. A second worm gear is fixedly connected to one end of the second roller extending into the inner cavity of the transfer frame. A second worm gear meshing with the second worm gear is rotatably connected to the left side of the inner cavity of the transfer frame via a bearing. A polygonal rod for use with a polygonal cylinder is fixedly connected to the right end of the second worm gear. A guide frame is fixedly connected to the left side of the transfer frame.

[0020] This invention provides a sintering process for graphite anode materials and a sintering furnace thereof. Compared with existing technologies, it has the following advantages:

[0021] (1) The graphite anode material sintering furnace has a loading mechanism and a feeding mechanism that work together on the left side of the heating mechanism. The combination of these three mechanisms allows the top several interfaces to overlap with the discharge port in sequence by rotating the toothed disc during use, so that the powder inside the storage box enters the loading pipe, thereby completing the quantitative loading of graphite powder. At the same time, the second roller and the first roller can complete the feeding and subsequent unloading. The whole process reduces manual intervention, increases the overall functionality of the equipment, and indirectly improves the sintering efficiency.

[0022] (2) The graphite anode material sintering furnace has a bending groove on the right side of the rotating frame and a transfer frame is set inside the bending groove. The second gear drives the ring seat to drive the two clamping rollers to drive the ring conveyor belt. The cooperation of these structures can transfer the graphite box at the top of the ring conveyor belt to the upper part of the second roller. Thus, the graphite box is transported to the inside of the sintering furnace body in sequence through the transmission of the second roller. Furthermore, the graphite box can be moved out of the sintering furnace body during subsequent reversal, demonstrating the linkage of the equipment.

[0023] (3) The graphite anode material sintering furnace has a linkage frame at the bottom of the motor and several meshing first bevel gears on the inner side of the linkage frame. The arrangement of these structures can make the toothed disc and the annular conveyor belt rotate synchronously and in the same direction under the drive of the first gear and the driven rod, so as to ensure that the material tube can fall stably inside the graphite box when injecting material into the graphite box, and avoid spillage caused by asynchronous rotation.

[0024] (4) The graphite anode material sintering furnace has a sealing plate installed on one side of the rotating frame to cooperate with the charging pipe. This structure can make the interface and the discharge port coincide. When the powder enters the charging pipe, the bottom of the charging pipe is sealed to prevent the powder from slipping off in advance and ensure the accuracy of the charging. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a rear view of the structure of the heating mechanism, loading mechanism, and feeding mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the loading mechanism and feeding mechanism structure of the present invention;

[0028] Figure 4 This is a cross-sectional view of the linkage frame structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the discharge port, vertical rod, toothed disc, and interface structure of the present invention.

[0030] Figure 6 This is a bottom view of the discharge port, toothed disc, and loading pipe structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the annular seat, annular sliding groove, first tooth groove, and second tooth groove structure of the present invention.

[0032] Figure 8 This is a top view of the feeding mechanism structure of the present invention;

[0033] Figure 9 This is a schematic diagram of the bending groove, guide roller, pinion, and clamping roller structure of the present invention.

[0034] Figure 10 This is a cross-sectional view of the transfer frame structure of the present invention;

[0035] Figure 11 This is a schematic diagram of the heating mechanism structure of the present invention;

[0036] Figure 12 This is a top view of the internal structure of the sintering furnace body of the present invention;

[0037] Figure 13 This is a schematic diagram of the load-bearing concave frame, the first roller, the connecting rod, and the polygonal cylinder structure of the present invention;

[0038] Figure 14 This is a cross-sectional view of the load-bearing concave frame structure of the present invention.

[0039] In the diagram: 1. Base plate; 2. Heating mechanism; 3. Loading mechanism; 4. Feeding mechanism; 201. Sintering furnace body; 202. Insulation frame; 203. Load-bearing recessed frame; 204. First roller; 205. First worm gear; 206. Connecting rod; 207. First worm; 208. Polygonal cylinder; 209. Crossbar; 210. First pulley; 211. First belt; 212. First bevel gear; 213. Cylinder; 214. Sealing door; 301. Rotating cylinder; 302. Storage box; 303. Discharge port; 304. Vertical rod; 305. Gear plate; 306. Connecting interface; 307. Loading pipe; 308. Motor; 309. Linkage frame; 310. Driven rod; 311. Rotating rod; 312. First gear; 313. First bevel gear; 314. Second gear; 315. Sliding rod; 316. Lifting plate; 317. Connecting rod; 318. Second pulley; 319. Second belt; 401. Rotating frame; 402. Sliding block; 403. Annular seat; 404. Annular sliding groove; 405. First tooth groove; 406. Second tooth groove; 407. Bending groove; 408. Guide roller; 409. Pinion; 410. Clamping roller; 411. Sealing plate; 412. Electric telescopic rod; 413. Transfer frame; 414. Second roller; 415. Second worm gear; 416. Second worm; 417. Polygonal rod; 418. Guide frame; 420. Annular conveyor belt. Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Example

[0041] Please see Figure 1-14 This invention provides a sintering process for graphite anode materials, specifically including the following steps:

[0042] S1. Before use, pour the graphite powder into the inside of the storage box 302. Then start the cylinder to lift the loading mechanism 3 and the feeding mechanism 4. At the same time, drive the sealing door 214 to open the feed port of the sintering furnace body 201. Stop when the cylinder rises to the limit position. At this time, the two first bevel gears 212 mesh. Then start the electric telescopic rod 412 to push the transfer frame 413 and the guide frame 418 to move to the left and extend into the inside of the sintering furnace body 201. Insert the polygonal rod 417 into the inside of the polygonal cylinder 208. Then start the motor 308 to go to step S2 to carry out the feeding process.

[0043] S2. After the motor 308 starts, it drives the first gear 312 to rotate via the rotating rod 311. Since the first gear 312 meshes with the toothed disc 305, it also drives the toothed disc 305 to rotate. On the inner side of the linkage frame 309, the meshing of the three first bevel gears 313 also causes the driven rod 310 to drive the second gear 314 to mesh with the second tooth groove 406, so that the ring seat 403 and the toothed disc 305 rotate counterclockwise synchronously and in the same direction. At the same time, under the transmission of the second pulley 318 and the second belt 319, The connecting rod 317 is rotated, and the two first bevel gears 212 mesh to drive the crossbar 209 to rotate. The rotation of the crossbar 209 drives the connecting rod 206, the first worm 207, the polygonal cylinder 208, the polygonal rod 417 and the second worm 416 to rotate through the transmission of the first pulley 210 and the first belt 211. The rotation of the second worm 416 and the first worm 207 also drives several first worm wheels 205 and second worm wheels 415 to rotate synchronously, so that the second roller 414 and the first roller 204 rotate.

[0044] The rotation of the toothed disc 305 causes the top mating interface 306 to overlap with the discharge port 303 in sequence. Graphite powder inside the storage box 302 slides into the inner side of the loading tube 307 through the discharge port 303 and the mating interface 306. Since the bottom end of the loading tube 307 contacts the sealing plate 411 to prevent powder leakage, the graphite box is then placed on top of the annular conveyor belt 420. As the annular seat 403 drives the pinion 409 to rotate through the first toothed groove 405, the meshing of the two pinions 409 also causes the two clamps to rotate. Roller 410 clamps the annular conveyor belt 420 and drives it to rotate inside the rotating frame 401, causing the graphite box at the top to rotate counterclockwise. The graphite box rotates synchronously with the loading tube 307 driven by the annular conveyor belt 420. When the loading tube 307 disengages from the sealing plate 411, the graphite powder inside slides into the inside of the graphite box. When the graphite box rotates to the position of the bending groove 407, it moves to the top of the transfer frame 413. The rotation of the second roller 414 moves the graphite box to the right and into the inside of the sintering furnace body 201, and then through... The first roller 204 continues to move the graphite box to the far right of the sintering furnace body 201. When the graphite box reaches the far right of the inner cavity of the sintering furnace body 201 and touches the inner wall, it is stopped. The continued rotation of the first roller 204 does not cause the graphite box to move further to the right. Then, subsequent graphite boxes, after being filled with graphite powder, enter the inner side of the sintering furnace body 201 sequentially through the transmission of the first roller 204 and the transfer frame 413, and come into contact with each other. When the graphite boxes inside the sintering furnace body 201 are full, the motor 308... Stop rotating, then start the electric telescopic rod 412 to move the transfer frame 413 to the right so that the polygonal rod 417 separates from the polygonal cylinder 208. Finally, the cylinder 213 drives the loading mechanism 3 and the feeding mechanism 4 to descend so that the sealing door 214 seals the sintering furnace body 201. The lifting plate 316 separates the two first bevel gears 212 under the limit of the sliding rod 315. After the sealing door 214 is completely sealed, start the sintering furnace body 201 to heat and sinter it. After heating is completed and cooling is achieved, proceed to step S3 for the unloading process.

[0045] S3. After graphite sintering is completed, the cylinder is started to push the loading mechanism 3 and the feeding mechanism 4 to rise and reopen the sealing door 214. At the same time, the polygonal rod 417 is connected to the polygonal cylinder 208. Then the discharge port 303 is sealed and the motor 308 is started to reverse. Through the linkage between the second pulley 318 and the connecting rod 317, the second roller 414 and the first roller 204 are reversed, moving several graphite boxes to the right out of the sintering furnace body 201 and finally sliding out through the guide frame 418. After all the graphite boxes have slid out, the motor 308 is started to rotate counterclockwise again and the discharge port 303 is opened to reload the graphite boxes for the next batch of sintering. In S2 and S3, the second worm 416 and the first worm 207 are connected to the polygonal cylinder 208 and the polygonal rod 417 to form a whole.

[0046] Please refer to Figure 11 , Figure 12 , Figure 13 Figures 1 and 14 illustrate the overall structure of the heating mechanism 2. This invention also discloses a graphite anode material sintering furnace, comprising a base plate 1, a heating mechanism 2, a loading mechanism 3, and a feeding mechanism 4. The heating mechanism 2 is installed on the top right side of the base plate 1 and is used to heat and sinter graphite powder. The loading mechanism 3 is located on the top left side of the base plate 1 and is used to load graphite powder. The feeding mechanism 4 is located below the loading mechanism 3 and is used to feed the heating mechanism 2. The heating mechanism 2 includes a sintering furnace. The sintering furnace body 201 is mounted on the right side of the top of the base plate 1 via a bracket. A heat insulation frame 202 is fixedly connected to the inner side of the sintering furnace body 201 via a fixing block. Several heat insulation frames 202 are provided, and a load-bearing recessed frame 203 is fixedly connected to the inner side of each heat insulation frame 202. A first roller 204 is rotatably connected between the front and rear parts of the inner side of the load-bearing recessed frame 203 via a bearing. The first roller 204 is heat-resistant, and several first rollers 204 are provided. The rear end of the first roller 204 passes through the load-bearing recessed frame. The frame 203 extends into the inner cavity of the load-bearing recess 203. A first worm gear 205 is fixedly connected to one end of the first roller 204 extending into the inner cavity of the load-bearing recess 203. The first worm gear 205 is heat-resistant. A first worm 207, meshing with the first worm gear 205, is rotatably connected to the right side of the inner cavity of the load-bearing recess 203 via a bearing. A polygonal cylinder 208 is fixedly connected to the left end of the first worm 207. The right end of the first worm 207 passes through the load-bearing recess 203 and the sintering furnace body 201 sequentially and extends to the right side of the sintering furnace body 201. The first worm gear 207 extends to one end of the right side of the sintering furnace body 201 and is fixedly connected to a connecting rod 206. The surface of the connecting rod 206 is covered with aerogel for heat insulation. A crossbar 209 is rotatably connected to the bottom of the sintering furnace body 201. The right end of the crossbar 209 and the connecting rod 206 are connected by a first pulley 210 and a first belt 211. A cylinder 213 is fixedly connected to the rear part of the top of the bottom plate 1. A sealing door 214 that works with the sintering furnace body 201 is fixedly connected to the top of the cylinder 213 by a bracket.

[0047] Please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6The overall structure of the loading mechanism 3 is shown. The loading mechanism 3 includes a rotating cylinder 301, which is fixedly connected to the top of the cylinder 213 via a bracket. A storage box 302 is fixedly connected to the left side of the rotating cylinder 301 via a bracket. A discharge port 303 is provided at the bottom of the storage box 302. The discharge port 303 is manually blocked by the operator when the motor 308 reverses. A vertical rod 304 is rotatably connected to the inner side of the rotating cylinder 301. A toothed disc that cooperates with the storage box 302 is fixedly connected to the bottom of the vertical rod 304. 305, the outer periphery of the top of the toothed disc 305 is provided with a mating interface 306 for use with the discharge port 303, and several mating interfaces 306 are provided. A loading tube 307 is fixedly connected to the bottom of the mating interface 306. A motor 308 is fixedly connected to the rear of the rotating cylinder 301. The motor 308 is a servo motor. A linkage frame 309 is fixedly connected to the left side of the cylinder 213 and below the motor 308 through a bracket. The output shaft of the motor 308 is fixedly connected to a rotating rod 311 through a coupling, and the bottom of the rotating rod 311... The end of the rotating rod 311 passes through the linkage frame 309 and extends to the inner side of the linkage frame 309. A driven rod 310 is rotatably connected to the bottom of the inner cavity of the linkage frame 309 through an opening. A first bevel gear 313 meshes with the driven rod 310 at the opposite end of the rotating rod 311 and on the right side of the inner cavity of the linkage frame 309. A first gear 312 meshes with a toothed disc 305 and is fixedly connected to the surface of the rotating rod 311 between the motor 308 and the linkage frame 309. A second gear 314 is fixedly connected to the surface of the driven rod 310. A sliding rod 315 is fixedly connected to the rear side of the top of the plate 1. A lifting plate 316 is slidably mounted on the surface of the sliding rod 315. The top of the lifting plate 316 is rotatably connected to the bottom end of the driven rod 310 through a bearing. A docking rod 317 is rotatably connected to the left side of the top of the lifting plate 316 through a bearing. The docking rod 317 and the driven rod 310 are connected by a second pulley 318 and a second belt 319. The top end of the docking rod 317 and the right end of the crossbar 209 are both fixedly connected to a first bevel gear 212 that meshes with each other.

[0048] Please refer to Figure 7 , Figure 8 , Figure 9 and Figure 10The overall structure of the feeding mechanism 4 is shown. The feeding mechanism 4 includes a rotating frame 401, which is mounted on the lower part of the storage box 302 via a bracket. A bending groove 407 is provided on the right side of the rotating frame 401. A slider column 402 is fixedly connected to the outer periphery of the bottom of the rotating frame 401. An annular seat 403 is provided at the lower part of the rotating frame 401. An annular sliding groove 404 that cooperates with the slider column 402 is provided on the top of the annular seat 403. A first tooth groove 405 is provided on the outer periphery of the top of the annular seat 403. A second gear 314 is provided on the lower part of the surface of the annular seat 403 for meshing. The second tooth groove 406 is connected to the inner side of the annular conveyor belt 420. A guide roller 408 is rotatably connected to the front and rear of the inner cavity of the bending groove 407 via a bracket. The guide roller 408 is used to smoothly bend the annular conveyor belt 420 inside the bending groove 407 during transmission, and the guide roller 408 is in close contact with the annular conveyor belt 420. An electric telescopic rod 412 is fixedly connected to the front and rear of the right side of the rotating frame 401. A transfer frame 413 is fixedly connected between the right ends of the two electric telescopic rods 412, and the transfer frame 413 is located inside the bending groove 407. On the side, the upper and lower parts of the annular conveyor belt 420, located inside the bending groove 407, are equipped with meshing pinions 409. The pinions 409 are rotatably connected to the bracket, and are fixedly connected to the right side of the rotating frame 401 via the bracket. A clamping roller 410, which cooperates with the annular conveyor belt 420, is fixedly connected to the left side of the pinions 409. A sealing plate 411, which cooperates with the loading pipe 307, is fixedly connected to the top left side of the rotating frame 401 via a bracket. The sealing plate 411 is made of steel with a smooth surface and fits snugly against the bottom end of the loading pipe 307. (Transfer...) A second roller 414 is rotatably connected between the front and rear parts of the inner side of the frame 413 via a bearing. Several second rollers 414 are provided. The rear end of the second roller 414 passes through the transfer frame 413 and extends into the inner cavity of the transfer frame 413. A second worm gear 415 is fixedly connected to one end of the second roller 414 extending into the inner cavity of the transfer frame 413. A second worm 416 that meshes with the second worm gear 415 is rotatably connected to the left side of the inner cavity of the transfer frame 413 via a bearing. A polygonal rod 417 that works with the polygonal cylinder 208 is fixedly connected to the right end of the second worm 416. The right end of the polygonal rod 417 is tapered to facilitate docking with the polygonal cylinder 208. A guide frame 418 is fixedly connected to the left side of the transfer frame 413.

[0049] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sintering process for graphite anode materials, specifically including the following steps: S1. Before use, pour the graphite powder into the inside of the storage box (302), then start the cylinder to raise the loading mechanism (3) and the feeding mechanism (4), and at the same time drive the sealing door (214) to open the feed port of the sintering furnace body (201). Stop when the cylinder rises to the limit position. At this time, the two first bevel gears (212) mesh. Then start the electric telescopic rod (412) to push the transfer frame (413) and the guide frame (418) to move to the left and extend into the inside of the sintering furnace body (201). Insert the polygonal rod (417) into the inside of the polygonal cylinder (208). Then start the motor (308) to go to step S2 to carry out the feeding process. S2. After the motor (308) starts, it drives the first gear (312) to rotate through the rotating rod (311). Since the first gear (312) meshes with the toothed disc (305), it also drives the toothed disc (305) to rotate. On the inner side of the linkage frame (309), the meshing of the three first bevel gears (313) also causes the driven rod (310) to drive the second gear (314) to rotate counterclockwise in the same direction through meshing with the second tooth groove (406). At the same time, under the transmission of the second pulley (318) and the second belt (319), it drives the second gear (314) to rotate counterclockwise in the same direction. The connecting rod (317) rotates and drives the crossbar (209) to rotate through the meshing of two first bevel gears (212). The rotation of the crossbar (209) drives the connecting rod (206), the first worm (207), the polygonal cylinder (208), the polygonal rod (417), and the second worm (416) to rotate through the transmission of the first pulley (210) and the first belt (211). The rotation of the second worm (416) and the first worm (207) also drives several first worm wheels (205) and the second worm wheel (415) to rotate synchronously, so that the second roller (414) and the first roller (204) rotate. The rotation of the toothed disc (305) causes the top mating interface (306) to overlap with the discharge port (303) in sequence. The graphite powder inside the storage box (302) slides into the inside of the loading tube (307) through the discharge port (303) and the mating interface (306). Since the bottom end of the loading tube (307) contacts the sealing plate (411) to prevent the powder from leaking out, the graphite box is then placed on top of the annular conveyor belt (420). Since the annular seat (403) drives the pinion (409) to rotate through the first tooth groove (405), the meshing of the two pinions (409) also causes the graphite powder to rotate. Two clamping rollers (410) clamp the annular conveyor belt (420) and drive it to rotate inside the rotating frame (401), causing the graphite box at the top to rotate counterclockwise. The graphite box is rotated synchronously with the loading tube (307) by the annular conveyor belt (420). When the loading tube (307) is removed from the sealing plate (411), the graphite powder inside slides down to the inside of the graphite box. When the graphite box rotates to the position of the bending groove (407), it moves to the top of the transfer frame (413). The rotation of the second roller (414) moves the graphite box to the right and to the inside of the sintering furnace body (201). The graphite box continues to move to the rightmost side of the sintering furnace body (201) via the transmission of the first roller (204). When the graphite box reaches the rightmost side of the inner cavity of the sintering furnace body (201) and touches the inner wall, it is stopped. The continuous rotation of the first roller (204) will not drive the graphite box to move further to the right. Then, after the subsequent graphite boxes are filled with graphite powder, they enter the inner side of the sintering furnace body (201) in sequence via the transmission of the first roller (204) and the transfer frame (413) and come into contact with each other. When the graphite boxes inside the sintering furnace body (201) are full, the motor (308) stops rotating. Then, the electric telescopic rod (412) is activated to move the transfer frame (413) to the right so that the polygonal rod (417) and the polygonal cylinder (208) are separated. Finally, the cylinder (213) drives the loading mechanism (3) and the feeding mechanism (4) to descend so that the sealing door (214) seals the sintering furnace body (201). The lifting plate (316) separates the two first bevel gears (212) under the limit of the sliding rod (315). After the sealing door (214) is completely sealed, the sintering furnace body (201) is activated to heat and sinter it. After the heating is completed and cooled, the process is transferred to step S3 for the unloading process. S3. After the graphite sintering is completed, the cylinder is started to push the loading mechanism (3) and the feeding mechanism (4) to rise and reopen the sealing door (214). At the same time, the polygonal rod (417) is connected to the polygonal cylinder (208). Then the discharge port (303) is sealed and the motor (308) is started to reverse. Through the linkage between the second pulley (318) and the connecting rod (317), the second roller (414) and the first roller (204) are reversed. Several graphite boxes are moved to the right out of the sintering furnace body (201) and finally slide out through the guide frame (418). After all the graphite boxes have slid out, the motor (308) is started to rotate counterclockwise again and the discharge port (303) is opened. The graphite boxes are fed again for the next batch of sintering.

2. The sintering process for graphite anode materials according to claim 1, characterized in that: In S2 and S3, the second worm (416) and the first worm (207) are integrated by the docking of the polygonal tube (208) and the polygonal rod (417).

3. A graphite anode material sintering furnace, comprising a bottom plate (1), a heating mechanism (2), a loading mechanism (3), and a feeding mechanism (4), characterized in that: The heating mechanism (2) is installed on the right side of the top of the base plate (1). The heating mechanism (2) is used to heat and sinter the graphite powder. The loading mechanism (3) is located on the left side of the top of the base plate (1). The loading mechanism (3) is used to load the graphite powder. The feeding mechanism (4) is located at the bottom of the loading mechanism (3). The feeding mechanism (4) is used to feed the heating mechanism (2). The heating mechanism (2) includes a sintering furnace body (201), which is mounted on the right side of the top of the base plate (1) via a bracket. A heat-insulating frame (202) is fixedly connected to the inner side of the sintering furnace body (201) via a fixing block. Several heat-insulating frames (202) are provided, and a load-bearing recessed frame (203) is fixedly connected to the inner side of each heat-insulating frame (202). A first roller (204) is rotatably connected between the front and rear parts of the inner side of the load-bearing recessed frame (203) via a bearing. Several first rollers (204) are provided. The rear end of the first roller (204) passes through the load-bearing recessed frame (203) and extends into the inner cavity of the load-bearing recessed frame (203). A first worm gear (205) is fixedly connected to one end of the first roller (204) extending into the inner cavity of the load-bearing recessed frame (203). A load-bearing worm gear (205) is rotatably connected to the right side of the inner cavity of the load-bearing recessed frame (203) via a bearing. A first worm (207) meshes with a first worm gear (205). The left end of the first worm (207) is fixedly connected to a polygonal cylinder (208). The right end of the first worm (207) passes through the load-bearing recess (203) and the sintering furnace body (201) in sequence and extends to the right side of the sintering furnace body (201). A connecting rod (206) is fixedly connected to one end of the first worm (207) extending to the right side of the sintering furnace body (201). A crossbar (209) is rotatably connected to the bottom of the sintering furnace body (201). The right ends of the crossbar (209) and the connecting rod (206) are connected by a first pulley (210) and a first belt (211). A cylinder (213) is fixedly connected to the rear part of the top of the bottom plate (1). A sealing door (214) that works with the sintering furnace body (201) is fixedly connected to the top of the cylinder (213) through a bracket. The loading mechanism (3) includes a rotating cylinder (301) and the rotating cylinder (301) is fixedly connected to the top of the cylinder (213) via a bracket. A storage box (302) is fixedly connected to the left side of the rotating cylinder (301) via a bracket. A discharge port (303) is provided at the bottom of the storage box (302). A vertical rod (304) is rotatably connected to the inner side of the rotating cylinder (301). A toothed disc (305) that cooperates with the storage box (302) is fixedly connected to the bottom of the vertical rod (304). A mating interface (306) that cooperates with the discharge port (303) is provided on the outer periphery of the top of the toothed disc (305). Several mating interfaces (306) are provided. A loading pipe (307) is fixedly connected to the bottom of the mating interface (306). A motor (308) is fixedly connected to the rear of the rotating cylinder (301). The feeding mechanism (4) includes a rotating frame (401), which is mounted on the lower part of the storage box (302) by a bracket. A bending groove (407) is provided on the right side of the rotating frame (401). A slider column (402) is fixedly connected to the outer periphery of the bottom of the rotating frame (401). An annular seat (403) is provided at the lower part of the rotating frame (401). An annular sliding groove that cooperates with the slider column (402) is provided on the top of the annular seat (403). 404), the outer periphery of the top of the annular seat (403) is provided with a first tooth groove (405), the lower part of the surface of the annular seat (403) is provided with a second tooth groove (406) that meshes with the second gear (314), the inner side of the rotating frame (401) is provided with an annular conveyor belt (420), the front and rear parts of the inner cavity of the bending groove (407) are rotatably connected to guide rollers (408) through brackets, and the guide rollers (408) are in contact with the annular conveyor belt (420).

4. The graphite anode material sintering furnace according to claim 3, characterized in that: A linkage frame (309) is fixedly connected to the left side of the cylinder (213) and below the motor (308) via a bracket. The output shaft of the motor (308) is fixedly connected to a rotating rod (311) via a coupling. The bottom end of the rotating rod (311) passes through the linkage frame (309) and extends to the inside of the linkage frame (309). A driven rod (310) is rotatably connected to the bottom of the inner cavity of the linkage frame (309) through an opening. A first bevel gear (313) meshes with each other at the opposite end of the rotating rod (311) and the right side of the inner cavity of the linkage frame (309). A first gear (312) meshes with a toothed disc (305) is fixedly connected to the surface of the rotating rod (311) between the motor (308) and the linkage frame (309). A second gear (314) is fixedly connected to the surface of the driven rod (310).

5. A sintering furnace for graphite anode materials according to claim 4, characterized in that: A sliding rod (315) is fixedly connected to the rear side of the top of the base plate (1). A lifting plate (316) is slidably installed on the surface of the sliding rod (315). The top of the lifting plate (316) is rotatably connected to the bottom end of the driven rod (310) through a bearing. A docking rod (317) is rotatably connected to the left side of the top of the lifting plate (316) through a bearing. The docking rod (317) and the driven rod (310) are connected by a second pulley (318) and a second belt (319). The top end of the docking rod (317) and the right end of the crossbar (209) are both fixedly connected to a first bevel gear (212) that meshes with each other.

6. The graphite anode material sintering furnace according to claim 5, characterized in that: Electric telescopic rods (412) are fixedly connected to the front and rear of the right side of the rotating frame (401). A transfer frame (413) is fixedly connected between the right ends of the two electric telescopic rods (412). The transfer frame (413) is located inside the bending groove (407). The upper and lower parts of the annular conveyor belt (420) and the inner side of the bending groove (407) are provided with meshing pinions (409). The pinions (409) are fixedly connected to the right side of the rotating frame (401) through a bracket. A clamping roller (410) that cooperates with the annular conveyor belt (420) is fixedly connected to the left side of the pinion (409). A sealing plate (411) that cooperates with the loading pipe (307) is fixedly connected to the left side of the top of the rotating frame (401) through a bracket.

7. A sintering furnace for graphite anode materials according to claim 6, characterized in that: The front and rear parts of the inner side of the transfer frame (413) are rotatably connected by a bearing, and there are several second rollers (414). The rear end of the second roller (414) passes through the transfer frame (413) and extends into the inner cavity of the transfer frame (413). One end of the second roller (414) extending into the inner cavity of the transfer frame (413) is fixedly connected to a second worm gear (415). The left side of the inner cavity of the transfer frame (413) is rotatably connected by a bearing to a second worm (416) that meshes with the second worm gear (415). The right end of the second worm (416) is fixedly connected to a polygonal rod (417) that cooperates with the polygonal cylinder (208). The left side of the transfer frame (413) is fixedly connected to a guide frame (418).

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