Positive and negative electrode raw material mixing equipment for lithium ion battery production and method thereof

Abstract

The invention discloses positive and negative electrode raw material mixing equipment for lithium ion battery production and a method thereof, and relates to the technical field of lithium ion battery positive and negative electrode raw material mixing equipment.The equipment comprises a base, a material mixing tank, a toothed chain A, a toothed chain B, a lifting table and a discharging hopper; according to the device, a driving gear A drives a driven gear A and a driven gear B to rotate, so that lead screws A on the two sides of the interior of a support synchronously rotate, at the moment, a limiting block A slides in a limiting groove A, a connecting rod A is driven to rotate on the limiting block A, at the moment, the connecting rod A also rotates on the surface of a limiting block B, and the limiting block B drives a lifting table to move upwards; and the lifting table can drive the discharging hopper to move upwards, then a driving gear B drives a driven gear C to rotate, a lead screw C and a lead screw B rotate synchronously, at the moment, a limiting block C can slide in the lifting table, and therefore a connecting rod B drives the discharging hopper and a rotating shaft A to rotate in the lifting table through a rotating shaft B to achieve feeding of the lithium battery raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of positive and negative electrode raw material mixing equipment for lithium ion batteries, and in particular to positive and negative electrode raw material mixing equipment and a method for producing lithium ion batteries. Background Art

[0002] The mixing and stirring of lithium battery raw materials is the most important link in the entire production process. The preparation of positive and negative electrode raw materials includes a series of process steps such as mutual mixing, dissolution, and dispersion of raw materials. Therefore, the mixing and stirring of raw materials is very important in the production of lithium-ion batteries. The quality of raw material mixing directly affects the quality of subsequent lithium-ion battery production and the performance of its products.

[0003] For example, the "A device for mixing raw materials inside lithium batteries" with publication number CN215963099U includes a support plate, a support leg is fixedly connected to one side of the top of the support plate, a fixed plate is fixedly connected to the top of the support leg, a crushing box is fixedly connected to the upper surface of the fixed plate, a servo motor is fixedly connected to one side of the crushing box, a screening plate is arranged on one side of the inner wall of the crushing box, and a delivery pipe is arranged at the bottom of the screening plate. The device for mixing raw materials inside lithium batteries is provided with a water pump, and after the delivery pipe discharges the crushed raw materials inside lithium batteries into the inner cavity of the mixing box, the stirring arm in the inner cavity of the mixing box mixes and stirs the raw materials inside lithium batteries. Heat is generated in the process of mixing and stirring the raw materials inside lithium batteries by the stirring arm. At this time, the water pump draws out the water in the water tank and discharges it into the outer cavity of the mixing box through the water pipe. The water flows in the outer cavity of the mixing box to reduce the heat generated by the mixing and stirring.

[0004] However, in the prior art, since this type of mixing device does not have a structure for assisting the loading of raw materials, special loading equipment is required to load the raw materials for lithium batteries, and during the loading process, the staff is also required to manually operate the loading equipment to align the feeding port of the mixing device for loading. This loading method not only reduces the loading efficiency, but also easily causes the raw materials to scatter due to deviations between the loading equipment and the feeding port of the mixing device during the loading process, thereby causing unnecessary loss of lithium battery raw materials. Summary of the invention

[0005] The purpose of the present invention is to provide a positive and negative electrode raw material mixing device and method for lithium-ion battery production, so as to solve the problem raised in the above background technology that the lithium battery mixing device does not have a structure for auxiliary feeding of raw materials, resulting in reduced raw material feeding efficiency and scattering of raw materials.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positive and negative electrode raw material mixing device for lithium ion battery production, comprising a base, a mixing tank, a tooth chain A, a tooth chain B, a lifting platform and a discharge hopper, the top surface of the mixing tank is provided with a feed hopper, a bracket is fixedly installed on the surface of the base, a motor A is fixedly installed inside the bracket, a driving gear A is installed at the output end of the motor A, a side plate A is fixedly installed on the surface of the bracket, a driven gear A and a driven gear B are rotatably connected on the surface of the bracket, a screw rod A is fixedly installed on the surface of the driven gear A and the driven gear B, a limiting groove A is provided on the inner surface of the bracket, a limiting block A is slidably connected inside the limiting groove A, and the surface of the limiting block A is rotatably connected A connecting rod A is connected, and a limiting groove B is provided on the inner surface of the bracket. Both sides of the lifting platform are rotatably connected to the limiting blocks B. The top surface of the base is fixedly installed with a limiting rod. Both sides of the discharge hopper are fixedly installed with a rotating shaft A. A motor B is fixedly installed on the side of the lifting platform. A screw rod B is installed on the output end of the motor B. A driving gear B is fixedly installed on the end of the screw rod B away from the motor B. The side of the lifting platform is rotatably connected to a driven gear C, and a screw rod C is fixedly installed on the surface of the driven gear C. A side plate B is fixedly installed on the surface of the lifting platform. Both sides of the discharge hopper are fixedly installed with a rotating shaft B. Both sides of the interior of the lifting platform are slidably connected to the limiting blocks C, and the surface of the limiting blocks C is rotatably connected with a connecting rod B.

[0007] Preferably, a heater is fixedly installed inside the mixing tank, a heat conducting plate is installed at the output end of the heater, and a discharge valve is provided at the bottom of the mixing tank.

[0008] Preferably, the screw rod A is rotationally connected to the bracket, the screw rod A is threadedly connected to the limit block A, the driving gear A, the driven gear B and the driven gear C are all engaged with the tooth chain, the connecting rod A is rotationally connected to the limit block B, the limit block B is rollingly connected to the limit slot B, and the lifting platform is slidingly connected to the limit rod.

[0009] Preferably, the screw rod B and the screw rod C are both rotatably connected to the lifting platform, the screw rod B and the screw rod C are both threadedly connected to the limit block C, the driving gear B and the driven gear C are both engaged with the tooth chain B, the rotating shaft A is rotatably connected to the lifting platform, and the connecting rod B is rotatably connected to the rotating shaft B.

[0010] Preferably, a top plate A is fixedly mounted on the surface of the bracket, an electric push rod is fixedly mounted on the top surface of the top plate A, a push plate is mounted on the output end of the electric push rod, a limit plate is fixedly mounted on the side of the feed hopper, both sides of the feed hopper are internally rotatably connected with a rotating rod, a torsion spring is sleeved on the surface of the rotating rod, a cover plate is fixedly mounted on one end of the rotating rod, a rotating block is rotatably connected to the side of the cover plate, a limit block D is fixedly mounted on the surface of the rotating block, and an arc groove is penetrated through the surface of the limit plate.

[0011] Preferably, the push plate is slidably connected to the limit plate, the rotating block is rollingly connected to the arc groove, the limit block D is slidably connected to the limit plate, one end of the torsion spring is connected to the inner surface of the feed hopper, and the other end is connected to the surface of the cover plate.

[0012] Preferably, a top plate B is fixedly installed on the top surface of the mixing tank, a motor C is fixedly installed on the surface of the top plate B, a driving gear C is installed on the output end of the motor C, a driven gear D is rotatably connected to the top surface of the mixing tank, a tooth chain C is sleeved on the surfaces of the driving gear C and the driven gear D, a rotating plate is fixedly installed on the bottom surface of the driven gear D, a connecting rod is fixedly installed on the bottom surface of the rotating plate, a scraper is fixedly installed on the surface of the connecting rod, a stirring rod A is fixedly installed on the surface of the connecting rod, a rotating shaft C is fixedly installed on the bottom surface of the rotating plate, a stirring rod B is fixedly installed on the surface of the rotating shaft C, a nozzle is fixedly installed on the bottom surface of the rotating plate, a water pump is fixedly installed on the top surface of the top plate A, connecting pipes are provided on the output and input ends of the water pump, and a water tank is fixedly installed on the top surface of the top plate A.

[0013] Preferably, the driving gear C is rotationally connected to the mixing tank, the driving gear C and the driven gear D are both engaged with the tooth chain C, the rotating plate is rotationally connected to the mixing tank, and the rotating shaft C is rotationally connected to the mixing tank.

[0014] Preferably, the stirring rod A and the stirring rod B are arranged in a staggered manner, one end of the connecting pipe is connected to the input end of the nozzle, and the other end is connected to the output end of the water tank.

[0015] A method for mixing positive and negative electrode raw materials for lithium ion battery production comprises the following steps:

[0016] S1. When the lifting platform needs to be raised, it is only necessary to drive the driving gear A to rotate through the motor A. The driving gear A will drive the driven gear A and the driven gear B to rotate through the tooth chain A, thereby driving the screw rods A on both sides of the bracket to rotate synchronously, thereby driving the limit block A to slide in the limit groove A. At this time, the limit block A will drive the connecting rod A to rotate. At this time, the connecting rod A will also rotate on the surface of the limit block B, thereby driving the limit block B to roll in the limit groove B. At this time, the limit block B will drive the lifting platform to move upward, and the lifting platform will drive the discharge hopper to move upward until the discharge hopper moves to the top of the bracket;

[0017] S2. When it is necessary to pour the raw materials in the discharge hopper into the mixing tank, it is only necessary to drive the screw rod B to rotate through the motor B, and the screw rod B will drive the driving gear B to rotate, and the driving gear B will drive the driven gear C to rotate through the tooth chain B, thereby driving the screw rod C and the screw rod B to achieve synchronous rotation. At this time, the limit block C will slide inside the lifting platform, thereby driving the connecting rod B to rotate on the surface of the limit block C, and the connecting rod B will also rotate on the surface of the rotating shaft B, thereby driving the discharge hopper to rotate inside the lifting platform through the rotating shaft A. At this time, as the discharge hopper rotates, the raw materials inside the discharge hopper will be introduced into the mixing tank through the feed hopper;

[0018] S3. When it is necessary to control the opening and closing of the feed hopper, it is only necessary to drive the push plate to slide upward on the surface of the limit plate through the electric push rod. After the push plate slides to the top of the limit plate, the cover plate will rotate under the torsion of the torsion spring, and the cover plate will drive the rotating block to roll inside the arc groove, and the rotating block will drive the limit block D to slide on the surface of the limit plate. After the cover plate is turned open, the feed hopper can be opened. When it is necessary to close the feed hopper, it is only necessary to drive the push plate to slide downward on the surface of the limit plate through the electric push rod, and the push plate will drive the limit block B to move downward along the direction of the arc groove through the rotating block, thereby driving the cover plate to rotate until the cover plate closes the feed hopper;

[0019] S4. When the inner wall of the mixing tank needs to be cleaned, just turn on the motor C, the motor C will drive the driving gear C to rotate, the driving gear C will drive the driven gear D to rotate through the tooth chain C, and the driven gear D will drive the rotating plate to rotate, so that the connecting rod drives the scraper to scrape the inner wall of the mixing tank. At the same time, the connecting rod will also drive the stirring rod A to rotate, and the rotating shaft C will also drive the stirring rod B to rotate. At this time, turn on the water pump, the water pump will inject the cleaning liquid in the water tank into the nozzle through the connecting pipe, and then the nozzle will spray the inner wall of the mixing tank, thereby completing the cleaning of the inner wall of the mixing tank.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the active gear A drives the driven gear A and the driven gear B to rotate, so that the screw rods A on both sides of the bracket rotate synchronously. At this time, the limit block A will slide in the limit groove A, thereby driving the connecting rod A to rotate in the limit block A. At this time, the connecting rod A will also rotate on the surface of the limit block B, thereby driving the lifting platform to move upward through the limit block B, and the lifting platform will drive the discharge hopper to move upward, and then drive the driven gear C to rotate through the active gear B, so that the screw rod C and the screw rod B can rotate synchronously. At this time, the limit block C will slide inside the lifting platform, so that the connecting rod B drives the discharge hopper and the rotating shaft A to rotate inside the lifting platform through the rotating shaft B to realize the loading of lithium battery raw materials.

[0022] 2. In the present invention, the push plate is driven by the electric push rod to slide upward on the surface of the limit plate. After the push plate slides to the top of the limit plate, the cover plate will rotate due to the torsion force of the torsion spring, and the cover plate will drive the rotating block to roll inside the arc groove, and the rotating block will drive the limit block D to slide on the surface of the limit plate. After the cover plate is turned open, the feed hopper can be opened. When the feed hopper needs to be closed after the discharge is completed, it is only necessary to drive the push plate to slide downward on the limit surface through the electric push rod, and the push plate will drive the limit block B to move downward along the direction of the arc groove through the rotating block, thereby driving the cover plate to rotate until the cover plate closes the feed hopper. The design of the cover plate not only facilitates the control and adjustment of the opening and closing of the feed hopper, but also prevents dust or impurities in the air from entering the mixing tank during the mixing process, thereby preventing the raw materials from being contaminated.

[0023] 3. In the present invention, the driving gear C is driven to rotate by the motor C, and the driving gear C drives the driven gear D to rotate through the tooth chain C, and the driven gear D drives the rotating plate to rotate, so that the connecting rod drives the scraper to scrape the inner wall of the mixing tank. At the same time, the connecting rod also drives the stirring rod A to rotate, and the rotating shaft C also drives the stirring rod B to rotate. At this time, the water pump is turned on, and the water pump injects the cleaning liquid in the water tank into the nozzle through the connecting pipe, and then the nozzle sprays the inner wall of the mixing tank, thereby completing the cleaning of the inner wall of the mixing tank, thereby preventing the raw materials from being contaminated due to the residual materials on the inner wall of the mixing tank when mixing the next batch of lithium battery raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a positive and negative electrode raw material mixing device for lithium ion battery production according to the present invention;

[0025] Figure 2 It is a schematic diagram of the explosion structure at the side plate A and the screw rod A in a positive and negative electrode raw material mixing device for lithium ion battery production of the present invention;

[0026] Figure 3This is a schematic diagram of the explosion structure at the connecting rod A and the lifting platform in a positive and negative electrode raw material mixing device for lithium ion battery production of the present invention;

[0027] Figure 4 This is a schematic diagram of the explosion structure at the lifting platform of a positive and negative electrode raw material mixing device for lithium ion battery production according to the present invention;

[0028] Figure 5 A cross-sectional view of a base and a bracket in a positive and negative electrode raw material mixing device for lithium ion battery production according to the present invention;

[0029] Figure 6 A positive and negative electrode raw material mixing device for lithium ion battery production according to the present invention Figure 5 The enlarged view of point A in the middle;

[0030] Figure 7 A cross-sectional view of a base, a mixing tank and a bracket in a positive and negative electrode raw material mixing device for lithium ion battery production according to the present invention;

[0031] Figure 8 It is a schematic diagram of the explosion structure of the motor C and the top plate B in a positive and negative electrode raw material mixing device for lithium ion battery production of the present invention;

[0032] Fig. 9 The present invention is a schematic diagram of the explosion structure at the transfer plate and water pump of a positive and negative electrode raw material mixing device for lithium ion battery production.

[0033] In the figure: 1, base; 101, mixing tank; 102, feed hopper; 103, bracket; 104, motor A; 105, driving gear A; 106, side plate A; 107, driven gear A; 108, driven gear B; 109, tooth chain A; 110, screw rod A; 111, limit groove A; 112, limit block A; 113, connecting rod A; 114, limit groove B; 115, lifting platform; 116, limit block B; 117, limit rod; 118, hopper; 119, rotating shaft A; 120, motor B; 121, screw rod B; 1211, screw rod C; 122, driving gear B; 123, driven gear C; 124, tooth chain B; 125, side plate B; 126, rotating shaft 1. The top plate of the invention is as follows: 1. The top plate of the invention is as follows: 2. The top plate of the invention is as follows: 3. The top plate of the invention is as follows: 4. The top plate of the invention is as follows: 5. The top plate of the invention is as follows: 6. The top plate of the invention is as follows: 7. The top plate of the invention is as follows: 8. The top plate of the invention is as follows: 9. The top plate of the invention is as follows: 10. The top plate of the invention is as follows: 11. The top plate of the invention is as follows: 12. The limit block C; 128. The connecting rod B; 129. The heater; 130. The heat transfer plate; 131. The discharge valve; 2. The top plate A; 201. The electric push rod; 202. The push plate; 203. The limit plate; 204. The rotating rod; 205. The torsion spring; 206. The cover plate; 207. The rotating block; 208. The limit block D; 209. The arc groove; 3. The top plate B; 301. The motor C; 302. The driving gear C; 303. The driven gear D; 304. The tooth chain C; 305. The rotating plate; 306. The connecting rod; 307. The scraper; 308. The stirring rod A; 309. The rotating shaft C; 310. The stirring rod B; 311. The nozzle; 312. The water pump; 313. The connecting pipe; 314. The water tank. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Reference Figure 1-7As shown: A positive and negative electrode raw material mixing equipment for lithium ion battery production, including a base 1, a mixing tank 101, a tooth chain A109, a tooth chain B124, a lifting platform 115 and a hopper 118, the top surface of the mixing tank 101 is provided with a feed hopper 102, a bracket 103 is fixedly installed on the surface of the base 1, a motor A104 is fixedly installed inside the bracket 103, a driving gear A105 is installed on the output end of the motor A104, a side plate A106 is fixedly installed on the surface of the bracket 103, a driven gear A107 and a driven gear B108 are rotatably connected on the surface of the bracket 103, and a screw rod A110 is fixedly installed on the surface of the driven gear A107 and the driven gear B108. The inner surface of the bracket 103 is provided with a limit groove A111, the inner part of the limit groove A111 is slidably connected to the limit block A112, the surface of the limit block A112 is rotatably connected with a connecting rod A113, the inner surface of the bracket 103 is provided with a limit groove B114, both sides of the lifting platform 115 are rotatably connected with limit blocks B116, the top surface of the base 1 is fixedly installed with a limit rod 117, both sides of the hopper 118 are fixedly installed with a rotating shaft A119, the side of the lifting platform 115 is fixedly installed with a motor B120, the output end of the motor B120 is installed with a screw rod B121, the end of the screw rod B121 away from the motor B120 is fixedly installed with a driving gear B122, and the side of the lifting platform 115 is fixedly installed with a motor B120. A driven gear C123 is rotatably connected to the surface of the driven gear C123, a screw rod C1211 is fixedly installed on the surface of the driven gear C123, a side plate B125 is fixedly installed on the surface of the lifting platform 115, a rotating shaft B126 is fixedly installed on both sides of the discharge hopper 118, both sides of the interior of the lifting platform 115 are slidably connected to the limit block C127, the surface of the limit block C127 is rotatably connected to the connecting rod B128, a heater 129 is fixedly installed inside the mixing tank 101, a heat conducting plate 130 is installed on the output end of the heater 129, a discharge valve 131 is arranged at the bottom of the mixing tank 101, the screw rod A110 is rotatably connected to the bracket 103, and the screw rod A110 and the limit block A112 are connected by a thread The driving gear A105, the driven gear B108 and the driven gear C123 are all meshed with the tooth chain, the connecting rod A113 is rotationally connected with the limit block B116, the limit block B116 is rollingly connected with the limit groove B114, the lifting platform 115 is slidingly connected with the limit rod 117, the screw rod B121 and the screw rod C1211 are rotationally connected with the lifting platform 115, the screw rod B121 and the screw rod C1211 are threadedly connected with the limit block C127, the driving gear B122 and the driven gear C123 are meshed with the tooth chain B124, the rotating shaft A119 is rotationally connected with the lifting platform 115, and the connecting rod B128 is rotationally connected with the rotating shaft B126.

[0036] In this embodiment, the driving gear A105 drives the driven gear A107 and the driven gear B108 to rotate, thereby driving the screw rods A110 on both sides of the bracket 103 to rotate synchronously. At this time, the screw rod A110 drives the limit block A112 to slide in the limit groove A111, and the movement of the limit block A112 drives the connecting rod A113 to rotate on the surface of the limit block A112. When the connecting rod A113 rotates on the surface of the limit block A112, it also rotates on the surface of the limit block B116, thereby driving the limit block B116 to roll in the limit groove B114. At this time, the limit block B116 drives the lifting platform 1 15 moves upward, and the lifting platform 115 will drive the discharge hopper 118 to move upward until the discharge hopper 118 moves to the top of the bracket 103, and then the driving gear B122 drives the driven gear C123 to rotate so that the screw C1211 and the screw B121 can rotate synchronously. At this time, the limit block C127 will slide inside the lifting platform 115, so that the connecting rod B128 can rotate on the surface of the limit block C127, and the connecting rod B128 can also rotate on the surface of the rotating shaft B126, thereby driving the discharge hopper 118 and the rotating shaft A119 to rotate inside the lifting platform 115 to realize the loading of lithium battery raw materials.

[0037] Embodiment 2: Figure 5-6 As shown, a top plate A2 is fixedly installed on the surface of the bracket 103, an electric push rod 201 is fixedly installed on the top surface of the top plate A2, a push plate 202 is installed on the output end of the electric push rod 201, a limit plate 203 is fixedly installed on the side of the feed hopper 102, and a rotating rod 204 is rotatably connected to the inside of both sides of the feed hopper 102. A torsion spring 205 is sleeved on the surface of the rotating rod 204, a cover plate 206 is fixedly installed on one end of the rotating rod 204, a rotating block 207 is rotatably connected to the side of the cover plate 206, and a limit block D208 is fixedly installed on the surface of the rotating block 207. An arc groove 209 is opened through the surface of the limit plate 203, the push plate 202 is slidably connected to the limit plate 203, the rotating block 207 is rollingly connected to the arc groove 209, the limit block D208 is slidably connected to the limit plate 203, one end of the torsion spring 205 is connected to the inner surface of the feed hopper 102, and the other end is connected to the surface of the cover plate 206.

[0038] In this embodiment, the push plate 202 is driven by the electric push rod 201 to slide upward on the surface of the limit plate 203. After the push plate 202 slides to the top of the limit plate 203, the cover plate 206 will rotate under the torsion of the torsion spring 205, and the cover plate 206 will drive the rotating block 207 to roll inside the arc groove 209, and the rotating block 207 will drive the limit block D208 to slide on the surface of the limit plate 203. After the cover plate 206 is turned open, the feed hopper 102 can be opened. When the feed hopper 102 needs to be closed after the discharge is completed, , it is only necessary to drive the push plate 202 to slide downward on the limit surface through the electric push rod 201, and the push plate 202 will drive the limit block B116 to move downward along the direction of the arc groove 209 through the rotating block 207, thereby driving the cover plate 206 to rotate until the cover plate 206 closes the feed hopper 102. The design of the cover plate 206 not only facilitates the control and adjustment of the opening and closing of the feed hopper 102, but also prevents dust or impurities in the air from entering the mixing tank 101 during the mixing process, causing the raw materials to be contaminated.

[0039] Embodiment 3: According to Figure 7-9 As shown, a top plate B3 is fixedly installed on the top surface of the mixing tank 101, a motor C301 is fixedly installed on the surface of the top plate B3, a driving gear C302 is installed on the output end of the motor C301, a driven gear D303 is rotatably connected to the top surface of the mixing tank 101, a toothed chain C304 is sleeved on the surfaces of the driving gear C302 and the driven gear D303, a rotating plate 305 is fixedly installed on the bottom surface of the driven gear D303, a connecting rod 306 is fixedly installed on the bottom surface of the rotating plate 305, a scraper 307 is fixedly installed on the surface of the connecting rod 306, a stirring rod A308 is fixedly installed on the surface of the connecting rod 306, a rotating shaft C309 is fixedly installed on the bottom surface of the rotating plate 305, and a stirring rod A309 is fixedly installed on the surface of the rotating shaft C309 Mixing rod B310, a nozzle 311 is fixedly installed on the bottom surface of the rotating plate 305, a water pump 312 is fixedly installed on the top surface of the top plate A2, and a connecting pipe 313 is provided at the output end and the input end of the water pump 312, a water tank 314 is fixedly installed on the top surface of the top plate A2, the driving gear C302 is rotatably connected to the mixing tank 101, the driving gear C302 and the driven gear D303 are both engaged with the tooth chain C304, the rotating plate 305 is rotatably connected to the mixing tank 101, the rotating shaft C309 is rotatably connected to the mixing tank 101, the stirring rod A308 and the stirring rod B310 are arranged in a staggered manner, one end of the connecting pipe 313 is connected to the input end of the nozzle 311, and the other end is connected to the output end of the water tank 314.

[0040] In this embodiment, the driving gear C302 is driven to rotate by the motor C301, and the driving gear C302 drives the driven gear D303 to rotate through the tooth chain C304, and the driven gear D303 drives the rotating plate 305 to rotate, so that the connecting rod 306 drives the scraper 307 to scrape the inner wall of the mixing tank 101. At the same time, the connecting rod 306 also drives the stirring rod A308 to rotate, and the rotating shaft C309 also drives the stirring rod B310 to rotate. At this time, the water pump 312 is turned on, and the water pump 312 injects the cleaning liquid in the water tank 314 into the nozzle 311 through the connecting pipe 313, and then the nozzle 311 sprays the inner wall of the mixing tank 101, thereby completing the cleaning of the inner wall of the mixing tank 101, thereby preventing the raw materials from being contaminated due to the residual material on the inner wall of the mixing tank 101 when mixing the next batch of lithium battery raw materials.

[0041] The use method and working principle of this device: when it is necessary to inject the raw materials of lithium batteries into the mixing tank 101, just put the raw materials into the discharge hopper 118, and then turn on the motor A104, the motor A104 will drive the driving gear A105 to rotate, and the driving gear A105 will drive the driven gear A107 and the driven gear B108 to rotate through the tooth chain A109, thereby driving the screw rods A110 on both sides of the bracket 103 to rotate synchronously, thereby driving the limit block A112 to slide in the limit groove A111, at this time, the limit block A112 will drive the connecting rod A113 to rotate, and the connecting rod A113 will rotate on the surface of the limit block A112 while rotating on the surface of the limit block B116, thereby driving the limit block B116 to roll in the limit groove B114, at this time, the limit block B116 will drive the lifting platform 115 to move upward, and the lifting platform 115 will drive the discharge hopper 11 8 moves upward until the discharge hopper 118 is moved to the top of the bracket 103; at this time, the motor B120 is turned on again, the motor B120 will drive the screw rod B121 to rotate, the screw rod B121 will drive the driving gear B122 to rotate, the driving gear B122 will drive the driven gear C123 to rotate through the tooth chain B124, thereby driving the screw rod C1211 and the screw rod B121 to achieve synchronous rotation, at this time the limit block C127 will slide inside the lifting platform 115, thereby driving the connecting rod B128 to rotate on the surface of the limit block C127, at this time the connecting rod B128 will also rotate on the surface of the rotating shaft B126, thereby driving the discharge hopper 118 to rotate inside the lifting platform 115 through the rotating shaft A119, with the rotation of the discharge hopper 118, the raw materials inside the discharge hopper 118 will be poured into the mixing tank 101 through the feed hopper 102, thereby completing the feeding of the raw materials;

[0042] When it is necessary to control the opening and closing of the feed hopper 102, it is only necessary to drive the push plate 202 to slide upward on the surface of the limit plate 203 through the electric push rod 201. After the push plate 202 slides to the top of the limit plate 203, the cover plate 206 will rotate under the torsion force of the torsion spring 205, and the cover plate 206 will drive the rotating block 207 to roll inside the arc groove 209, and the rotating block 207 will drive the limit block D208 to slide on the surface of the limit plate 203. After the cover plate 206 is turned open, the feed hopper 102 can be opened. When it is necessary to close the feed hopper 102, it is only necessary to drive the push plate 202 to slide downward on the surface of the limit plate 203 through the electric push rod 201, and the push plate 202 will drive the limit block B116 to move downward along the direction of the arc groove 209 through the rotating block 207, thereby driving the cover plate 206 to rotate until the cover plate 206 closes the feed hopper 102.

[0043] When the inner wall of the mixing tank 101 needs to be cleaned, the motor C301 only needs to be turned on. The motor C301 will drive the driving gear C302 to rotate, and the driving gear C302 will drive the driven gear D303 to rotate through the tooth chain C304, and the driven gear D303 will drive the rotating plate 305 to rotate, so that the connecting rod 306 drives the scraper 307 to scrape the inner wall of the mixing tank 101. At the same time, the connecting rod 306 will also drive the stirring rod A308 to rotate, and the rotating shaft C309 will also drive the stirring rod B310 to rotate. At this time, the water pump 312 is turned on, and the water pump 312 will inject the cleaning liquid in the water tank 314 into the nozzle 311 through the connecting pipe 313, and then the nozzle 311 will spray the inner wall of the mixing tank 101, thereby completing the cleaning of the inner wall of the mixing tank 101.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positive and negative electrode raw material mixing device for lithium ion battery production, comprising a base (1), a mixing tank (101), a toothed chain A (109), a toothed chain B (124), a lifting platform (115) and a discharge hopper (118), characterized in that: The top surface of the mixing tank (101) is provided with a feed hopper (102), a bracket (103) is fixedly mounted on the surface of the base (1), a motor A (104) is fixedly mounted inside the bracket (103), a driving gear A (105) is mounted on the output end of the motor A (104), a side plate A (106) is fixedly mounted on the surface of the bracket (103), and a driven gear A (107) and a driven gear B (108) are rotatably connected to the surface of the bracket (103) The driven gear A (107) and the driven gear B (108) are both fixedly mounted with a screw rod A (110), the inner surface of the bracket (103) is provided with a limit groove A (111), the inner part of the limit groove A (111) is slidably connected to a limit block A (112), the surface of the limit block A (112) is rotatably connected to a connecting rod A (113), the inner surface of the bracket (103) is provided with a limit groove B (114), and both sides of the lifting platform (115) are rotatably connected to the lifting platform (115). The base (1) is connected to a limit block B (116), a limit rod (117) is fixedly installed on the top surface of the base (1), a rotating shaft A (119) is fixedly installed on both sides of the discharge hopper (118), a motor B (120) is fixedly installed on the side of the lifting platform (115), a screw rod B (121) is installed at the output end of the motor B (120), and a driving gear B (122) is fixedly installed at the end of the screw rod B (121) away from the motor B (120), and the lifting platform (115) is connected to the lifting platform (115) by a fixed connection. The side of the lifting platform (115) is rotatably connected to a driven gear C (123), the surface of the driven gear C (123) is fixedly mounted with a screw rod C (1211), the surface of the lifting platform (115) is fixedly mounted with a side plate B (125), both sides of the discharge hopper (118) are fixedly mounted with a rotating shaft B (126), both sides of the interior of the lifting platform (115) are slidably connected to a limit block C (127), and the surface of the limit block C (127) is rotatably connected to a connecting rod B (128).

2. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 1, characterized in that: A heater (129) is fixedly installed inside the mixing tank (101), a heat conducting plate (130) is installed at the output end of the heater (129), and a discharge valve (131) is arranged at the bottom of the mixing tank (101).

3. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 1, characterized in that: The screw rod A (110) is rotationally connected to the bracket (103), the screw rod A (110) is threadedly connected to the limit block A (112), the driving gear A (105), the driven gear B (108) and the driven gear C (123) are all meshed with the toothed chain, the connecting rod A (113) is rotationally connected to the limit block B (116), the limit block B (116) is rollingly connected to the limit groove B (114), and the lifting platform (115) is slidingly connected to the limit rod (117).

4. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 1, characterized in that: The screw rod B (121) and the screw rod C (1211) are both rotatably connected to the lifting platform (115), and the screw rod B (121) and the screw rod C (1211) are both connected to the limit block C (127) through threads, the driving gear B (122) and the driven gear C (123) are both meshed with the toothed chain B (124), the rotating shaft A (119) is rotatably connected to the lifting platform (115), and the connecting rod B (128) is rotatably connected to the rotating shaft B (126).

5. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 4, characterized in that: A top plate A (2) is fixedly mounted on the surface of the bracket (103), an electric push rod (201) is fixedly mounted on the top surface of the top plate A (2), a push plate (202) is mounted on the output end of the electric push rod (201), a limit plate (203) is fixedly mounted on the side of the feed hopper (102), both sides of the feed hopper (102) are rotatably connected to a rotating rod (204) inside, a torsion spring (205) is sleeved on the surface of the rotating rod (204), a cover plate (206) is fixedly mounted on one end of the rotating rod (204), a rotating block (207) is rotatably connected to the side of the cover plate (206), a limit block D (208) is fixedly mounted on the surface of the rotating block (207), and an arc groove (209) is provided through the surface of the limit plate (203).

6. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 5, characterized in that: The push plate (202) is slidably connected to the limit plate (203), the rotating block (207) is rollingly connected to the arc groove (209), the limit block D (208) is slidably connected to the limit plate (203), one end of the torsion spring (205) is connected to the inner surface of the feed hopper (102), and the other end is connected to the surface of the cover plate (206).

7. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 4, characterized in that: A top plate B (3) is fixedly mounted on the top surface of the mixing tank (101), a motor C (301) is fixedly mounted on the surface of the top plate B (3), a driving gear C (302) is mounted on the output end of the motor C (301), a driven gear D (303) is rotatably connected to the top surface of the mixing tank (101), a toothed chain C (304) is sleeved on the surfaces of the driving gear C (302) and the driven gear D (303), a rotating plate (305) is fixedly mounted on the bottom surface of the driven gear D (303), a connecting rod (306) is fixedly mounted on the bottom surface of the rotating plate (305), and the connecting rod ( A scraper (307) is fixedly mounted on the surface of the top plate (306), a stirring rod A (308) is fixedly mounted on the surface of the connecting rod (306), a rotating shaft C (309) is fixedly mounted on the bottom surface of the rotating plate (305), a stirring rod B (310) is fixedly mounted on the surface of the rotating shaft C (309), a nozzle (311) is fixedly mounted on the bottom surface of the rotating plate (305), a water pump (312) is fixedly mounted on the top surface of the top plate A (2), the output end and the input end of the water pump (312) are both provided with connecting pipes (313), and a water tank (314) is fixedly mounted on the top surface of the top plate A (2).

8. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 7, characterized in that: The driving gear C (302) is rotationally connected to the mixing tank (101), the driving gear C (302) and the driven gear D (303) are both meshed with the toothed chain C (304), the rotating plate (305) is rotationally connected to the mixing tank (101), and the rotating shaft C (309) is rotationally connected to the mixing tank (101).

9. The positive and negative electrode raw material mixing equipment for lithium ion battery production according to claim 7, characterized in that: The stirring rods A (308) and the stirring rods B (310) are arranged in a staggered manner. One end of the connecting pipe (313) is connected to the input end of the nozzle (311), and the other end is connected to the output end of the water tank (314).

10. A method for mixing positive and negative electrode raw materials for lithium ion battery production, characterized in that: A positive and negative electrode raw material mixing device for lithium ion battery production according to any one of claims 1 to 9 is used, comprising the following steps: S1. When the lifting platform (115) needs to be raised, the driving gear A (105) is driven to rotate by the motor A (104). The driving gear A (105) drives the driven gear A (107) and the driven gear B (108) to rotate through the toothed chain A (109), thereby driving the screw rods A (110) on both sides of the bracket (103) to rotate synchronously, thereby driving the limit block A (112) to slide in the limit slot A (111). The positioning block A (112) drives the connecting rod A (113) to rotate, and the connecting rod A (113) also rotates on the surface of the limiting block B (116), thereby driving the limiting block B (116) to roll in the limiting groove B (114). At this time, the limiting block B (116) drives the lifting platform (115) to move upward, and the lifting platform (115) drives the discharge hopper (118) to move upward until the discharge hopper (118) moves to the top of the bracket (103); S2. When the raw materials in the discharge hopper (118) need to be poured into the mixing tank (101), the motor B (120) only needs to drive the screw rod B (121) to rotate, and the screw rod B (121) will drive the driving gear B (122) to rotate, and the driving gear B (122) will drive the driven gear C (123) to rotate through the toothed chain B (124), thereby driving the screw rod C (1211) and the screw rod B (121) to achieve synchronous rotation. At this time, the limit block C (127) will be raised. The lowering platform (115) slides inside, thereby driving the connecting rod B (128) to rotate on the surface of the limit block C (127). At this time, the connecting rod B (128) also rotates on the surface of the rotating shaft B (126), thereby driving the discharge hopper (118) to rotate inside the lifting platform (115) through the rotating shaft A (119). At this time, as the discharge hopper (118) rotates, the raw materials inside the discharge hopper (118) are introduced into the mixing tank (101) through the feeding hopper (102); S3. When it is necessary to control the opening and closing of the feed hopper (102), the push plate (202) is driven by the electric push rod (201) to slide upward on the surface of the limit plate (203). After the push plate (202) slides to the top of the limit plate (203), the cover plate (206) is rotated by the torsion force of the torsion spring (205), and the cover plate (206) drives the rotating block (207) to roll inside the arc groove (209), and the rotating block (207) drives the limit block D (208) to roll on the limit plate (20 3), and the feed hopper (102) can be opened after the cover plate (206) is turned open. When the feed hopper (102) needs to be closed, the push plate (202) can be driven by the electric push rod (201) to slide downward on the surface of the limit plate (203), and the push plate (202) will drive the limit block B (116) to move downward along the direction of the arc groove (209) through the rotating block (207), thereby driving the cover plate (206) to rotate until the cover plate (206) closes the feed hopper (102); S4. When it is necessary to clean the inner wall of the mixing tank (101), the motor C (301) is turned on. The motor C (301) drives the driving gear C (302) to rotate. The driving gear C (302) drives the driven gear D (303) to rotate through the toothed chain C (304). The driven gear D (303) drives the rotating plate (305) to rotate, so that the connecting rod (306) drives the scraper (307) to move inside the mixing tank (101). The wall of the mixing tank (101) is scraped. At the same time, the connecting rod (306) also drives the stirring rod A (308) to rotate, and the rotating shaft C (309) also drives the stirring rod B (310) to rotate. At this time, the water pump (312) is turned on, and the water pump (312) injects the cleaning liquid in the water tank (314) into the nozzle (311) through the connecting pipe (313). The nozzle (311) then sprays the inner wall of the mixing tank (101), thereby completing the cleaning of the inner wall of the mixing tank (101).

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