Processing equipment for processing battery negative electrode material

Abstract

The invention relates to the technical field of battery processing equipment, and discloses processing equipment for processing a battery negative electrode material, the processing equipment comprises cross beams, the cross beams are distributed in parallel front and back, a walking mechanism is slidably arranged between the two cross beams, and a polishing mechanism is rotatably arranged in the walking mechanism. A stepping motor is started and drives two torsion rods to rotate, so that two worms rotate, two worm wheels rotate forwards and backwards, then two rotating shafts are driven to rotate forwards and backwards in two shaft holes, two upper sealing covers are further driven to rotate forwards and backwards, and four grinding rollers rotationally connected with the upper sealing covers rotate synchronously; according to the device, the polishing grooves are matched with the outer walls of the machined battery negative electrode graphite rods, so that after the positions of the multiple polishing grooves are adjusted, the device can be used for machining the battery negative electrode graphite rods with different thicknesses, the use range of the device is greatly widened, and the use flexibility of the device is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of battery processing equipment technology, specifically to a processing equipment for processing battery negative electrode materials. Background Technology

[0002] Lithium batteries are batteries that use lithium metal or lithium alloy as the anode material and a non-aqueous electrolyte solution. With the development of microelectronics technology at the end of the 20th century, miniaturized devices have become increasingly common, placing high demands on power supplies. As a result, lithium batteries have entered a stage of large-scale practical application.

[0003] According to the lithium battery anode material processing equipment disclosed in the authorization announcement number CN 110815904 B, including a rotating plate, a pressing column, a V-shaped annular groove, a rotating frame, a material support rod and a V-shaped recess, the present invention can extrude the graphite column material of the lithium battery anode to eliminate the uneven protrusions on the graphite column. Two rotating plates are arranged on the left and right sides. A rotating frame is mounted on each of the two rotating plates, and a pressure column is rotatably connected to each rotating frame. A V-shaped groove is provided in the middle of each pressure column, and a V-shaped recess is provided on the upper side of the material support rod. The two pressure columns are located on the left and right sides of the material support rod, respectively, and the distance between the two pressure columns and the material support rod is adjustable. The material support rod can tilt forward and backward, and the two pressure columns can tilt with the material support rod. The two pressure columns can rotate on the two rotating frames, so that the two pressure columns are pressed against the left and right sides of the graphite column through their V-shaped grooves. As the graphite column continuously moves forward, the uneven protrusions on the outer side of the graphite column can be removed. The distance between the two pressure columns and the material support rod is adjustable, thus accommodating graphite columns of different sizes.

[0004] However, the V-shaped groove in the aforementioned lithium battery anode material processing equipment has a fixed size structure, which means that when processing graphite pillars of battery anodes of different thicknesses, the inner wall of the V-shaped groove cannot perfectly match the outer surface of the graphite pillar. This makes it impossible to ensure that the outer surface of the graphite pillar is subjected to uniform pressure, further affecting the shaping and processing of the outer surface of the graphite pillar. Summary of the Invention

[0005] This invention provides a processing device for battery negative electrode materials, which has the advantage of being able to process battery negative electrode graphite rods of different thicknesses. It solves the problem that the V-shaped annular groove in existing lithium battery negative electrode material processing equipment has a fixed size structure, which makes it impossible for the inner wall of the V-shaped annular groove to perfectly match the outer surface of the graphite rod when processing graphite rods of different thicknesses of battery negative electrodes. This makes it impossible to ensure uniform pressure on the outer surface of the graphite rod, and further affects the shaping and processing of the outer surface of the graphite rod.

[0006] The present invention provides the following technical solution: a processing device for processing battery negative electrode material, including two crossbeams, which are arranged in parallel front to back, and a traveling mechanism is slidably provided between the two crossbeams, and a grinding mechanism is rotatably provided inside the traveling mechanism;

[0007] The traveling mechanism includes two guide slots, which are opened on the outer surface of two crossbeams and pass through the two crossbeams. Two sliding pins are slidably connected inside each of the two guide slots. A gantry frame is fixedly connected among the multiple sliding pins. Two shaft holes are opened downward through the top of the gantry frame.

[0008] The polishing mechanism includes two rotating shafts distributed front to back and two polishing motors distributed front to back. The two rotating shafts are rotatably connected inside two shaft holes. The bottom of each shaft hole is fixedly connected to an upper cover. The bottom of each upper cover is rotatably connected to multiple polishing rollers. The multiple polishing rollers are arranged in a circumferential array. Polishing grooves are opened on the outer wall of each of the multiple polishing rollers, and the multiple polishing grooves opened on the multiple polishing rollers are all different in size.

[0009] Preferably, mounting platforms are fixedly connected to both the front and back of the gantry frame. Servo motors are fixedly connected to the top of each of the two mounting platforms. The output shafts of the two servo motors movably pass through the two mounting platforms and extend to their bottom periphery. First drive gears are fixedly connected to the ends of the output shafts of the two servo motors. Passive racks mesh with the adjacent sides of the two first drive gears. The two passive racks are fixedly connected to the outer sides of the two crossbeams respectively, and the two passive racks are located at the top of the two guide grooves.

[0010] Preferably, a stepper motor is fixedly connected to the top of the gantry frame, and torsion bars are fixedly connected to the output shaft ends on both sides of the stepper motor via couplings. Worms are fixedly connected to the outer walls of the two torsion bars, and two worm gears mesh with the sides of the two worm gears. The two worm gears are fixedly connected to the outside of the two rotating shafts.

[0011] Preferably, the polishing groove is semi-circular.

[0012] Preferably, two lower covers are fixedly connected to the top of the two grinding motors. The two lower covers are rotatably connected to the bottom of a plurality of grinding rollers distributed in front and behind. The output shafts of the two grinding motors movably pass through the lower covers and extend to their tops. A second driving gear is fixedly connected to the end of the output shaft of each of the two grinding motors. The second driving gear is located at the top of the lower cover and between the plurality of grinding rollers. A plurality of driven gears are meshed around the periphery of the second driving gear. The plurality of driven gears are respectively opened on the outer bottom wall of the plurality of grinding rollers.

[0013] Preferably, the outer wall ends of the two torsion bars are rotatably connected to bushings, the sides of the two bushings are fixedly connected to fixing brackets, and the two fixing brackets are fixed to the top of the gantry frame.

[0014] Preferably, two tensioning seats are fixedly provided between the two crossbeams, and tensioning screws are threaded through the middle of the abutting surfaces of the two tensioning seats. Tensioning discs are fixedly connected to the abutting ends of the two tensioning screws.

[0015] Preferably, the bottom of the two crossbeams are fixedly connected to two I-shaped longitudinal beams distributed on the left and right, and the tops of the two I-shaped longitudinal beams are fixedly connected to the bottoms of the two tensioning seats by bolts.

[0016] The present invention has the following beneficial effects:

[0017] 1. This battery negative electrode material processing equipment, by starting a stepper motor, drives two torsion bars to rotate, which in turn rotates two worm gears. The two worm gears are arranged in opposite directions, causing the two worm wheels meshing with them to rotate in opposite directions. This, in turn, drives two rotating shafts to rotate in opposite directions inside two shaft holes, which in turn drives two upper caps to rotate in opposite directions. This causes four grinding rollers connected to the upper caps to rotate synchronously, thereby selecting the size of the grinding groove to match the outer wall of the battery negative electrode graphite rod being processed. This allows the equipment to be used to process battery negative electrode graphite rods of different thicknesses after adjusting the position of multiple grinding grooves, greatly improving the scope of application and flexibility of the equipment.

[0018] 2. The processing equipment for the battery negative electrode material uses two grinding motors and two servo motors. The output shafts of the two grinding motors drive two second active gears to rotate, which in turn drive the grinding rollers to rotate under the meshing action with the passive gears. This, in turn, drives the grinding groove to rotate, grinding and shaping the battery negative electrode graphite rod. During this process, the output shafts of the two servo motors drive two first active gears to rotate, which in turn roll and move around the tooth surfaces of the two passive racks. This pushes the gantry frame to move to one side along the two crossbeams under the sliding guidance of four sliding pins and guide grooves, driving the grinding mechanism to move synchronously, thereby grinding the battery negative electrode graphite rod from all sides. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the walking mechanism in this invention;

[0021] Figure 3 for Figure 2 A partially enlarged structural diagram of A in this invention;

[0022] Figure 4 This is a schematic diagram of the grinding mechanism in this invention;

[0023] Figure 5 This is a schematic diagram showing a partial detail of the grinding mechanism in this invention.

[0024] In the diagram: 1. Crossbeam; 2. Traveling mechanism; 3. Grinding mechanism; 4. Tensioning seat; 5. Tensioning screw; 6. I-beam; 201. Guide groove; 202. Sliding pin; 203. Gantry frame; 204. Mounting platform; 205. Servo motor; 206. First driving gear; 207. Driven rack; 208. Shaft hole; 301. Rotating shaft; 302. Upper cover; 303. Grinding roller; 304. Grinding groove; 305. Stepper motor; 306. Torsion bar; 307. Worm gear; 308. Worm wheel; 309. Bushing; 3010. Grinding motor; 3011. Second driving gear; 3012. Driven gear; 3013. Fixing frame; 3014. Lower cover; 501. Tensioning disc. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-5A processing device for processing battery negative electrode materials includes a crossbeam 1, the number of crossbeams 1 is two, the two crossbeams 1 are distributed in parallel front and back, a traveling mechanism 2 is slidably provided between the two crossbeams 1, and a grinding mechanism 3 is rotatably provided inside the traveling mechanism 2.

[0027] The traveling mechanism 2 includes two guide grooves 201, which are formed on the outer surfaces of two crossbeams 1 and pass through them. Each guide groove 201 has two sliding pins 202 slidably connected to it, distributed laterally. A gantry frame 203 is fixedly connected to the gantry frame 203. Two shaft holes 208, distributed front and rear, are formed through the top of the gantry frame 203. Mounting platforms 204 are fixedly connected to the front and back of the gantry frame 203. Servo motors 205 are fixedly connected to the top of each mounting platform 204. The output shafts of the two servo motors 205 movably pass through the two mounting platforms 204 and extend to their bottom periphery. The ends of the output shafts of the two servo motors 205 are... A first drive gear 206 is fixedly connected. A passive rack 207 meshes with the side of the two first drive gears 206 that are close to each other. The two passive racks 207 are fixedly connected to the outer side of the two crossbeams 1 respectively. The two passive racks 207 are located at the top of the two guide grooves 201. The output shafts of the two servo motors 205 drive the two first drive gears 206 to rotate, so that the two first drive gears 206 roll around the tooth surface of the two passive racks 207. This pushes the gantry frame 203 to move to one side along the two crossbeams 1 under the sliding guidance of the four sliding pins 202 and the guide grooves 201, thereby driving the grinding mechanism 3 to move synchronously, so as to perform all-round grinding of the graphite rod of the battery negative electrode.

[0028] The grinding mechanism 3 includes two rotating shafts 301 distributed front to back and two grinding motors 3010 distributed front to back. The two rotating shafts 301 are rotatably connected to the inside of two shaft holes 208. Upper covers 302 are fixedly connected to the bottom of each shaft hole 208. Multiple grinding rollers 303 are rotatably connected to the bottom of each upper cover 302. The multiple grinding rollers 303 are arranged in a circumferential array. Grinding grooves 304 are formed on the outer wall of each grinding roller 303. The grinding grooves 304 on the multiple grinding rollers 303 are of different sizes. A stepper motor 305 is fixedly connected to the top of the gantry frame 203. Torsion bars 306 are fixedly connected to the output shaft ends on both sides of the stepper motor 305 via couplings. Worms 307 are fixedly connected to the outer wall of each torsion bar 306. Two worm gears 308 mesh with the sides of the two worm gears 307. The two rotating shafts 308 are fixedly connected to the outside of the two rotating shafts 301. With the power of the stepper motor 305, the two torsion bars 306 are driven to rotate, which in turn causes the two worm gears 307 to rotate. The two worm gears 307 are arranged in a forward and reverse spiral configuration, which causes the two worm wheels 308 meshing with the two worm gears 307 to rotate in opposite directions. This, in turn, drives the two rotating shafts 301 to rotate in opposite directions inside the two shaft holes 208, which in turn drives the two upper cover 302 to rotate in opposite directions. This causes the four grinding rollers 303, which are rotatably connected to the upper cover 302, to rotate synchronously. This allows the size of the grinding groove 304 to be selected to match the outer wall of the battery negative electrode graphite rod being processed. After adjusting the position of the multiple grinding grooves 304, this equipment can be used to process battery negative electrode graphite rods of different thicknesses, greatly improving the scope of application and flexibility of this equipment.

[0029] In this embodiment, the polishing groove 304 is set in a semi-circular arc shape. The semi-circular polishing groove 304 can perfectly match the graphite rod of the battery negative electrode, thereby ensuring effective polishing of the graphite rod of the battery negative electrode.

[0030] In this embodiment, two lower covers 3014 are fixedly connected to the top of the two grinding motors 3010. The two lower covers 3014 are rotatably connected to the bottom of a plurality of grinding rollers 303 distributed in front and behind. The output shafts of the two grinding motors 3010 movably pass through the lower covers 3014 and extend to their top. A second driving gear 3011 is fixedly connected to the end of the output shaft of the two grinding motors 3010. The second driving gear 3011 is located at the top of the lower covers 3014 and between the plurality of grinding rollers 303. A plurality of driven gears 3012 are meshed around the periphery of the second driving gear 3011. The plurality of driven gears 3012 are respectively opened on the outer bottom wall of the plurality of grinding rollers 303. The output shafts of the two grinding motors 3010 drive the two second driving gears 3011 to rotate, so that the grinding rollers 303 are driven to rotate under the meshing action with the driven gears 3012, thereby driving the grinding groove 304 to rotate and grinding and shaping the graphite rod of the battery negative electrode.

[0031] In this embodiment, the outer wall ends of the two torsion bars 306 are rotatably connected to bushings 309, and the sides of the two bushings 309 are fixedly connected to fixing brackets 3013. The two fixing brackets 3013 are fixed to the top of the gantry frame 203. By setting the two bushings 309 to provide rotational support for the two torsion bars 306, the rotational stability of the two torsion bars 306 is improved. At the same time, the two fixing brackets 3013 fix and limit the bushings 309 to the top of the gantry frame 203, further limiting the position of the two torsion bars 306.

[0032] In this embodiment, two tensioning seats 4 are fixedly arranged between the two crossbeams 1, and tensioning screws 5 are threadedly connected to the middle of the abutting surfaces of the two tensioning seats 4. Tensioning discs 501 are fixedly connected to the abutting ends of the two tensioning screws 5. By rotating the two tensioning screws 5, the two tensioning discs 501 are pushed to move towards the middle under the action of the thread tension force, so that the two tensioning discs 501 clamp the two ends of the graphite rod of the negative electrode of the battery, and fix and limit the graphite rod of the negative electrode of the battery.

[0033] In this embodiment, the bottom of the two crossbeams 1 is fixedly connected to two I-shaped longitudinal beams 6 distributed on the left and right. The top of the two I-shaped longitudinal beams 6 is fixedly connected to the bottom of the two tensioning seats 4 by bolts. By setting the two I-shaped longitudinal beams 6, the two crossbeams 1 and the two tensioning seats 4 are fixed and limited, and the equipment is also supported and fixed.

[0034] Working principle: In use, the stepper motor 305 is first started, which drives the two torsion bars 306 to rotate, further causing the two worm gears 307 to rotate. The two worm gears 307 are arranged in a forward and reverse spiral configuration, causing the two worm wheels 308 meshing with the two worm gears 307 to rotate in opposite directions. This, in turn, drives the two rotating shafts 301 to rotate in opposite directions inside the two shaft holes 208, further driving the two upper cover 302 to rotate in opposite directions. This causes the four grinding rollers 303, which are rotatably connected to the upper cover 302, to rotate synchronously, thereby selecting the size of the grinding groove 304 to match the outer wall of the battery negative electrode graphite rod being processed. After adjusting the position of multiple grinding grooves 304, this equipment can be used to process battery negative electrode graphite rods of different thicknesses, greatly improving the scope of application and flexibility of this equipment.

[0035] The negative electrode graphite rod is then passed between two opposing grinding grooves 304, and both ends of the negative electrode graphite rod are positioned between two tensioning discs 501. Then, by rotating the two tensioning screws 5, the two tensioning discs 501 are pushed towards the middle under the action of the thread tensioning force, so that the two tensioning discs 501 clamp the two ends of the negative electrode graphite rod and fix and limit the negative electrode graphite rod.

[0036] Subsequently, the operator starts two grinding motors 3010 and two servo motors 205. The output shafts of the two grinding motors 3010 drive two second active gears 3011 to rotate, which in turn drive the grinding roller 303 to rotate under the meshing action with the passive gear 3012. This, in turn, drives the grinding groove 304 to rotate, grinding and shaping the graphite rod of the battery negative electrode. During this process, the output shafts of the two servo motors 205 drive two first active gears 206 to rotate, which cause the two first active gears 206 to roll and move around the tooth surface of the two passive racks 207. This pushes the gantry 203 to move to one side along the two crossbeams 1 under the sliding guidance of the four sliding pins 202 and the guide groove 201, driving the grinding mechanism 3 to move synchronously, thereby grinding the graphite rod of the battery negative electrode in all directions.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing plant for processing of battery anode material, comprising a beam (1), characterized in that: There are two crossbeams (1), which are arranged in parallel front to back. A walking mechanism (2) is slidably provided between the two crossbeams (1), and a grinding mechanism (3) is provided inside the walking mechanism (2). The walking mechanism (2) includes two guide grooves (201), which are opened on the outer surface of the two crossbeams (1) and pass through the two crossbeams (1). The interior of each guide groove (201) is slidably connected to two left and right distributed sliding pins (202). A gantry frame (203) is fixedly connected to the multiple sliding pins (202). The top of the gantry frame (203) is opened downward through two front and rear distributed shaft holes (208). The polishing mechanism (3) includes two rotating shafts (301) distributed front to back and two polishing motors (3010) distributed front to back. The two rotating shafts (301) are rotatably connected to the inside of two shaft holes (208). The bottom of each shaft hole (208) is fixedly connected to an upper cover (302). The bottom of each upper cover (302) is rotatably connected to multiple polishing rollers (303). The multiple polishing rollers (303) are arranged in a circumferential array. Polishing grooves (304) are opened on the outer wall of each of the multiple polishing rollers (303), and the multiple polishing grooves (304) opened on the multiple polishing rollers (303) are all different in size.

2. The processing apparatus for processing battery anode material processing according to claim 1, wherein: Mounting platforms (204) are fixedly connected to the front and back of the gantry frame (203). Servo motors (205) are fixedly connected to the top of the two mounting platforms (204). The output shafts of the two servo motors (205) movably pass through the two mounting platforms (204) and extend to their bottom periphery. The ends of the output shafts of the two servo motors (205) are fixedly connected to the first drive gears (206). Passive racks (207) mesh with each other on the side of the two first drive gears (206). The two racks (207) are fixedly connected to the outer sides of the two crossbeams (1) respectively, and the two passive racks (207) are located at the top of the two guide grooves (201).

3. The processing apparatus for processing battery anode material processing according to claim 1, wherein: A stepper motor (305) is fixedly connected to the top of the gantry (203). The output shaft ends on both sides of the stepper motor (305) are fixedly connected to torsion bars (306) via couplings. Worms (307) are fixedly connected to the outer walls of the two torsion bars (306). Two worm gears (308) mesh with the sides of the two worm gears (307). The two worm gears (308) are fixedly connected to the outside of the two rotating shafts (301).

4. The processing apparatus for processing battery anode material processing according to claim 1, wherein: The polishing groove (304) is semi-circular.

5. The processing equipment for processing battery negative electrode materials according to claim 1, characterized in that: Two lower covers (3014) are fixedly connected to the top of the two grinding motors (3010). The two lower covers (3014) are rotatably connected to the bottom of a plurality of grinding rollers (303) distributed in front and behind. The output shafts of the two grinding motors (3010) movably pass through the lower covers (3014) and extend to their top. The ends of the output shafts of the two grinding motors (3010) are fixedly connected to a second driving gear (3011). The second driving gear (3011) is located at the top of the lower cover (3014) and is located between the plurality of grinding rollers (303). A plurality of driven gears (3012) are meshed around the periphery of the second driving gear (3011). The plurality of driven gears (3012) are respectively opened on the bottom wall of the outer wall of the plurality of grinding rollers (303).

6. The processing equipment for processing battery negative electrode materials according to claim 3, characterized in that: Both of the torsion bars (306) are rotatably connected to the outer wall ends of the two torsion bars (309), and both of the two bushings (309) are fixedly connected to the sides of the two bushings (309) and both of the two fixed brackets (3013) are fixed to the top of the gantry frame (203).

7. The processing equipment for processing battery negative electrode materials according to claim 1, characterized in that: Two tensioning seats (4) are fixedly provided between the two crossbeams (1) and are distributed on the left and right. A tensioning screw (5) is threaded through the middle of the abutting surface of the two tensioning seats (4). A tensioning disc (501) is fixedly connected to the abutting end of the two tensioning screws (5).

8. The processing equipment for processing battery negative electrode materials according to claim 1, characterized in that: The bottom of the two crossbeams (1) are fixedly connected to two left and right distributed I-shaped longitudinal beams (6), and the top of the two I-shaped longitudinal beams (6) are fixedly connected to the bottom of the two tensioning seats (4) by bolts.

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