A filling machine for preparing lithium battery materials

Abstract

The present invention belongs to the technical field of new energy battery preparation, solves the technical problems of high cost, low automation rate and low accuracy of the existing bowl loading machine and its control method, and provides a bowl loading machine for preparing lithium battery materials, which comprises: a frame; a silo, which is arranged on the frame and includes a cover plate provided with a feeding port and a silo body provided with a discharge port at the bottom; a material supply device for supplying the material in the silo body to the sagger, which comprises: a stirring motor, which is arranged on the cover plate and includes a drive shaft; a rotating shaft, which extends in the silo body and is connected to the driving shaft; a stirring mechanism, which is fixedly connected to the rotating shaft circumferentially and slides along the inner side wall of the silo body under the drive of the rotating shaft; a feeding mechanism, which is fixedly connected to the rotating shaft axially and transports the material to the discharge port. The bowl loading machine for preparing lithium battery materials of the present invention has the advantages of reduced cost, greatly improved automation rate and accuracy.

Description

[0001] This application is a divisional application of the invention patent application filed on June 2, 2022, with the invention name “A filling machine for preparing lithium battery materials and its control method” and application number 202210618529.4. Technical Field

[0002] The invention relates to the technical field of new energy battery preparation, and in particular to a filling machine for preparing lithium battery materials. Background Art

[0003] At present, in the production of powder materials such as positive and negative electrode materials for lithium-ion batteries, the materials to be sintered need to be loaded into saggers first, and then sintered at high temperature in a kiln. In order to ensure the consistency and quality of the materials after sintering, there are very high requirements for the loading speed and loading amount of the materials.

[0004] However, the existing filling equipment adopts relatively independent processes to carry out the transportation of the sagger, the lifting of the sagger, and the unloading of the hopper into the sagger through the discharge port in a separated and sequential manner, which results in a slow filling speed and low efficiency of the whole filling equipment. In addition, since corresponding independent control components need to be set in each independent process, and then the independent control components are integrated and communicated with the control device of the whole machine, this is not only costly, but also may cause time jams and time shifts when multiple independent control components communicate with the control device at the same time, resulting in a significant decrease in the automation rate and accuracy of the control. In addition, the existing filling equipment generally only determines whether to continue unloading by controlling whether the unloading process is carried out, and lacks a mechanism for accurately and openably sealing the discharge port of the hopper. In this way, even if the unloading process is no longer carried out, a small amount of material remaining at the discharge port will fall into the sagger under the action of gravity or the vibration of the machine, resulting in the sagger being unable to be supplied with a predetermined accurate weight of material. In addition, the existing sagger equipment lacks detection components that can accurately detect the conveying position and the weight of the unloaded materials, which causes the sagger to be unable to load the materials of accurate weight, making the final processed products of the materials fail to meet the quality requirements.

[0005] Therefore, there is an urgent need to provide a filling machine for preparing lithium battery materials with reduced cost, greatly improved automation rate and accuracy. Summary of the invention

[0006] In view of the deficiencies of the above-mentioned prior art, the present invention provides a sagger for preparing lithium battery materials to achieve one purpose of the present invention, comprising: a frame; a silo, which is arranged on the frame and includes a cover plate provided with a material inlet and a silo body provided with a discharge port at the bottom end; a material supply device for supplying materials in the silo body to the sagger, the material supply device comprising: a stirring motor, which is arranged on the cover plate and includes a drive shaft; a rotating shaft, which extends in the silo body and is drivingly connected to the drive shaft; a stirring mechanism, which is circumferentially fixedly connected to the rotating shaft and slides along the inner side wall of the silo body under the drive of the rotating shaft; a feeding mechanism, which is axially fixedly connected to the rotating shaft and conveys the material to the discharge port.

[0007] Furthermore, the loader for preparing lithium battery materials also includes a bearing assembly set arranged on the cover plate facing the interior of the bin body, the bearing assembly set includes a main shaft ring sleeved on the outer periphery of the rotating shaft, and an O-ring and an oil seal assembly are provided at the matching position between the main shaft ring and the rotating shaft.

[0008] Furthermore, the stirring mechanism includes a hollow transmission shaft, which is fixedly sleeved on the outer periphery of the rotating shaft. A pair of fixed surfaces are provided on the outer periphery of the transmission shaft. A fixed component is arranged on each fixed surface. The fixed component is fixedly connected to the scraper assembly. The scraper assembly includes a scraper that slides and rubs along the inner wall of the bin body.

[0009] Furthermore, the fixed surfaces are set as a pair and are radially symmetrical relative to the transmission shaft. The fixed assembly includes a fixed plate and a stirring rod fixedly connected to the fixed surface. Both ends of the stirring rod are provided with fixed concave surfaces. The scraper blade assembly also includes a first clamping plate and a second clamping plate fixed to each other and clamping the scraper blade therebetween. The first clamping plate has a fixed block, and the two fixed concave surfaces are fixedly connected to the fixed plate and the fixed block respectively.

[0010] Furthermore, the feeding mechanism includes a transmission shaft fixed to the end of the rotating shaft, a spiral conveying protrusion extending toward the discharge port is provided on the outer periphery of the transmission shaft, a dust cover is fixed at the connection between the rotating shaft and the transmission shaft, and a rotating boss extending toward the transmission shaft is provided on the outer periphery of the rotating shaft located in the dust cover.

[0011] Furthermore, a discharge pipe is fixedly connected to the outside of the discharge port, and a discharge plate with multiple discharge holes is fixed at the bottom of the discharge pipe. The spiral conveying protrusion extends into the discharge pipe, and the free end of the transmission shaft is rotatably connected to the adapter hole set on the discharge plate.

[0012] Furthermore, the filling machine for preparing lithium battery materials also includes a sealing cover driving device, which includes: a supporting assembly, which includes a first supporting plate and a support fixed on a first side surface of the first supporting plate; a telescopic assembly, which is supported by the supporting assembly in a telescopic manner and includes a cylinder with a cylinder barrel and a piston rod, and the cylinder barrel is fixed on the support; a rotating assembly, which receives the telescopic driving force of the telescopic assembly and includes a supporting rod and a pivot plate and a sealing cover fixedly connected; a supporting assembly, which supports the rotating assembly so that the rotating assembly drives the sealing cover to move between a first position in an open state of opening the discharge port and a second position in a sealed state of sealing the discharge port under the drive of the telescopic driving force.

[0013] Furthermore, the support assembly includes a first clamping plate and a second clamping plate fixed on the second side surface of the first supporting plate facing away from the support and spaced parallel to each other, the two ends of the pivot plate are respectively drivingly connected to the free end of the piston rod and the sealing cover, the pivot plate rotates in the interval space between the first clamping plate and the second clamping plate, the first plate hole of the first clamping plate and the second plate hole of the second clamping plate respectively support the first rod end and the second rod end of the support rod.

[0014] Furthermore, the support assembly also includes a cam with a circumferential portion and a protrusion, a tension spring, a wheel frame and a wheel rotatably supported on the wheel frame; the support rod includes a first shaft rod, a second shaft rod and a third shaft rod with successively decreasing diameters, a first concave surface and a second concave surface are respectively provided on the first shaft rod and the second shaft rod, a first groove is provided on the third shaft rod, and a plate hole concave surface and a wheel hole concave surface are respectively provided on the pivot plate and the cam; the support assembly also includes a second supporting plate and a fixing screw fixed on the side fixing plate, the second supporting plate is fixedly connected to an end of the first clamping plate facing away from the first supporting plate, the cam is arranged on the outer side of the first clamping plate, the wheel frame is fixed on the second supporting plate and faces the cam, the two ends of the tension spring are respectively fixed to the first groove and the fixing screw, the circumferential portion is rotatably abutted against the wheel, and in the second position the protrusion abuts against the wheel to stop rotation.

[0015] Furthermore, the first plate hole and the second plate hole are both configured as waist-shaped holes and the extension direction is parallel to the stretching direction of the tension spring, and in the process of the sealing cover moving from the first position to the second position, the support rod rotates and moves relative to a pair of waist-shaped holes, and a dust cover is provided on the outer periphery of the discharge pipe to surround the sagger for receiving the material falling from the discharge hole, the support assembly is supported by the dust cover, and a dust cover is provided at the position where the support assembly passes the dust cover.

[0016] The beneficial effect of the sagger for preparing lithium battery materials of the present invention is: the controller is used to coordinately and comprehensively control each device to achieve high automation to realize fast and accurate loading of the sagger, which can reduce costs and greatly improve the automation rate and accuracy of the sagger for preparing lithium battery materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0018] Figure 1 A control flow chart of a control method for a loader for preparing lithium battery materials according to an embodiment of the present invention;

[0019] Figure 2 This is a detailed flow chart of step S10 of the control method for preparing a lithium battery material loading machine according to an embodiment of the present invention;

[0020] Figure 3 A detailed flow chart of step S50 of the control method for preparing a lithium battery material loading machine according to an embodiment of the present invention;

[0021] Figure 4 This is an overall assembly diagram of a loader for preparing lithium battery materials according to an embodiment of the present invention;

[0022] Figure 5 To show Figure 4 Assembly drawings of the internal structure;

[0023] Figure 6 It is a partial structural assembly diagram of a loader for preparing lithium battery materials according to an embodiment of the present invention;

[0024] Figure 7 and Figure 8 The front views of the sagger lifting device of the sagger loading machine for preparing lithium battery materials according to the embodiment of the present invention from two different perspectives;

[0025] Fig. 9 A front view mainly showing a sagger conveying device and a sagger lifting device of a sagger loading machine for preparing lithium battery materials according to an embodiment of the present invention;

[0026] Fig.10 A front view mainly showing a stirring mechanism and a feeding mechanism of a bowl loading machine for preparing lithium battery materials according to an embodiment of the present invention;

[0027] Fig.11 A front view of a rotating shaft of a stirring mechanism of a bowl loading machine for preparing lithium battery materials according to an embodiment of the present invention;

[0028] Fig.12 A front view of a transmission shaft of a stirring mechanism of a bowl loading machine for preparing lithium battery materials according to an embodiment of the present invention;

[0029] Fig.13It is a partial structural schematic diagram of a loader for preparing lithium battery materials according to an embodiment of the present invention;

[0030] Fig.14 To hide Fig.13 Schematic diagram of the dust cover and sagger;

[0031] Fig.15 and Fig.16 Schematic diagram of the assembly of the sealing cover driving device and the dust cover of the ladling machine for preparing lithium battery materials according to an embodiment of the present invention at two different viewing angles;

[0032] Fig.17 and Fig.18 It is a schematic diagram of the assembly of the sealing cover driving device and the dust cover of the ladling machine for preparing lithium battery materials according to an embodiment of the present invention at two different viewing angles;

[0033] Fig.19 and Fig. 20 Schematic diagram of a sealing cover driving device of a hopper for preparing lithium battery materials according to an embodiment of the present invention at two different viewing angles;

[0034] Fig.21 and Fig. 22 It is a schematic diagram mainly showing the rotating assembly of the sealing cover driving device of the filling machine for preparing lithium battery materials according to an embodiment of the present invention at two different viewing angles;

[0035] Fig.23 A front view of a support rod of a sealing cover driving device of a filling machine for preparing lithium battery materials according to an embodiment of the present invention;

[0036] Fig.24 A front view of a pivot plate of a sealing cover driving device of a loader for preparing lithium battery materials according to an embodiment of the present invention;

[0037] Fig.25 It is a front view mainly showing the vacuum feeding assembly of the loader for preparing lithium battery materials according to an embodiment of the present invention;

[0038] Fig.26 A front view of a first empty barrel of a material storage barrel of a filling machine for preparing lithium battery materials according to an embodiment of the present invention;

[0039] Fig. 27 and Fig.28 The front view of the inside of the storage barrel is shown from two different perspectives of the loader for preparing lithium battery materials according to the embodiment of the present invention;

[0040] Description of reference numerals:

[0041] 1-frame; 2-sagger; 101-feeding pipe; 101A-end opening; 102-sealing cover plate; 103-storage barrel; 103A-first empty barrel; 103B-second empty barrel; 104-barrel cover; 105-partition plate; 106-loading port; 107-flange; 108-butterfly valve; 109-gas storage tank; 110-angle seat valve assembly; 111-filter element; 201-silo; 201A-silo body; 201B-cover plate; 202-stirring motor; 203-rotating shaft; 203A-rotating boss; 204-bearing set; 204A-spindle ring; 205-drive shaft; 206-fixed plate; 2 07- stirring rod; 208- scraper; 209- first clamping plate; 210- fixed block; 211- second clamping plate; 212- transmission shaft; 212A- spiral conveying protrusion; 213- dust cover; 214- feeding pipe; 214A- discharging plate; 214B- discharging hole; 215- dust cover; 301- lifting motor; 302- lifting rod; 303- support guide column; 304- positioning plate; 305- support plate; 306- force transmission block; 306A- opening; 307- force column; 308- sensor bracket; 309- weighing sensor; 310- support block; 311- reinforcing plate; 312- bellows cover ;313-abutment block;314-dust cover;315-cover;316-conveying motor;317-transmission chain;318-conveying roller;319-seat bearing;320-chain box;321-seat box;322-guide plate;323-guide wheel;324-displacement sensor;410-support assembly;411-first support plate;412-second support plate;413-fixing screw;414-first seat plate;415-second seat plate;416-reinforcement support plate;420-telescopic assembly;421-cylinder;421A-cylinder barrel;421B-piston rod;430-rotating assembly;431-sealing cover ;432-support rod;433-first shaft rod;433A-first concave surface;434-second shaft rod;434A-second concave surface;434B-second groove;435-third shaft rod;435A-first groove;436-pivot plate;436A-plate hole concave surface;436B-limiting hole;440-support assembly;441-first clamping plate;442-second clamping plate;442A-second plate hole;443-cam;443A-circumferential portion;443B-protrusion;444-tension spring;445-rotor frame;446-rotor;447-side fixing plate;450-elastic retaining ring;460-dust cover. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the various features in the embodiments of the present invention and the embodiments can be combined with each other, all within the scope of protection of the present invention.

[0043] refer to Figures 1 to 28As an object of the present invention, a control method for a loader for preparing lithium battery materials is provided, wherein the loader comprises a frame 1 and a silo 201 having a silo main body 201A with a discharge port at the bottom thereof, a material supply device, a sagger conveying device, a sagger lifting device and a sealing cover driving device, and the control method comprises the following steps: step S10: controlling the sagger conveying device to convey the sagger 2 to a position to be lifted and lowered along a conveying direction. Generally speaking, the position to be lifted and lowered is located below the discharge port in a vertical direction, and the sagger moves vertically between the position to be lifted and lowered and the silo main body without interfering with each other; step S20: controlling the sagger lifting device to raise the sagger 2 toward the silo main body until it reaches a filling position, and the filling position is determined according to the sagger height, the distance between the position to be lifted and lowered and the silo main body in a vertical direction, and the like, and it is only necessary to ensure that the sagger 2 can receive materials that reach a weight threshold value (which will be further described below); step S30: controlling the sealing cover driving device to change the discharge port from a sealed state to an open state; step S40: controlling the material The material supply device supplies the material in the warehouse main body into the sagger, that is, the material warehouse discharges the material into the sagger; step S50: determine whether the material supplied into the sagger reaches a preset weight, step S51: if not, control the material supply device to continue to supply the material into the sagger 2, step S52: if so, control the material supply device to stop supplying the material into the sagger 2 and control the sealing cover driving device to change the discharge port from an open state to a sealed state. It should be noted that the two-step control is preferably performed simultaneously to effectively avoid a small amount of material remaining at the discharge port or the discharge hole 214B (see further description below) from accidentally falling into the sagger 2 and causing a deviation in the weight of the material in the sagger 2, step S53: further control the sagger lifting device to lower the sagger 2 away from the warehouse main body 201A until it reaches the position to be lifted. When it is determined that the material supplied into the sagger 2 reaches the preset weight, control the sealing cover driving device to change the discharge port from an open state to a sealed state, and further control the sagger lifting device to lower the sagger 2 away from the warehouse main body 201A until it reaches the position to be lifted. Therefore, since the control method of the filling machine for preparing lithium battery materials of the present invention comprehensively controls each device in a highly automated manner to achieve quick and accurate filling of the sagger, it is possible to reduce costs and greatly improve the automation rate and accuracy of the filling machine for preparing lithium battery materials.

[0044] Please refer to further Figure 1 , Figure 2 , Figure 6 and Fig. 9Preferably, the sagger conveying device includes a conveying motor 316, and the sagger loading machine for preparing lithium battery materials also includes a displacement sensor 324 arranged on the frame corresponding to the position to be lifted. The above-mentioned step S10 of controlling the sagger conveying device to convey the sagger to the position to be lifted includes: when the displacement data detected by the displacement sensor 324 meets the displacement threshold data, it is judged that the sagger 2 is conveyed to the position to be lifted and the conveying motor 316 is controlled to be shut down. Specifically, step S10 further includes step S11 and step S12, wherein step S11 includes: comparing the displacement data with the displacement threshold data, when the displacement data reaches the displacement threshold data, it is determined that the sagger has been conveyed to the position to be lifted, and then executing step S12: controlling the conveying motor 316 to be shut down. The displacement threshold data is preset according to actual needs, and preferably, the displacement sensors are set to multiple pairs and are arranged at multiple positions including the position to be lifted and lowered along the conveying direction. The displacement sensor 324 can adopt an infrared sensor and each pair of displacement sensors includes an infrared transmitting end and an infrared receiving end. In this way, the sagger 2 for preparing lithium battery materials can detect the position change of the sagger 2 under the conveyance of the sagger conveying device in real time and continuously, so that once the sagger 2 reaches the position to be lifted and lowered, it stops moving, which is conducive to the material accurately falling into the central area of ​​the sagger 2 during subsequent unloading.

[0045] Please refer to further Figure 1 , Figure 3 , Figures 4 to 12 Preferably, the material supply device includes a stirring motor 202 for driving the material to move, and the sagger lifting device includes a weighing sensor for weighing the sagger 2. The above-mentioned step S50 of judging whether the material supplied to the sagger reaches the preset weight includes steps S501 and S502, wherein step S501 is: comparing the weighing weight data with the weight threshold data, and when the weighing weight data does not reach the weight threshold data, the judgment result is no, and step S502 is: when the weighing weight data reaches the weight threshold data, the judgment result is yes. In addition, it can be known that the continued supply of materials to the sagger 2 and the stop of the supply of materials to the sagger 2 in steps S51 and S52 are respectively realized by turning on and off the stirring motor 202. Since the shutdown control of the stirring motor 202 corresponds to the detection of the material weight in real time, the situation that the stirring motor 202 is delayed and shut down and the excess material is supplied to the sagger 2 is avoided.

[0046] Please refer to further Figure 1 , Figures 6 to 8 as well as Figures 13 to 24Preferably, the sagger lifting device includes a lifting motor 301, and the step S20 of controlling the sagger lifting device to raise the sagger 2 toward the warehouse main body 201A until it reaches the filling position includes a step S21: controlling the lifting motor 301 to rotate in a first rotation direction to provide a rising driving force to raise the sagger 2 toward the warehouse main body 201A; the step S53 of controlling the sagger lifting device to lower the sagger 2 toward the warehouse main body 201A away from the warehouse main body 201A until it reaches the position to be lifted includes a step S531: controlling the lifting motor 301 to rotate in a second rotation direction opposite to the first rotation direction to provide a descending driving force to lower the sagger 2 toward the warehouse main body 201A away from the warehouse main body 201A. Therefore, the sagger 2 can be accurately raised to the filling position and lowered to the position to be lifted by controlling the operation of the lifting motor. The sealing cover driving device includes a cylinder 421 with a piston rod 421B that drives the sealing cover 431 to move. The above-mentioned step S30 of controlling the sealing cover driving device to change the discharge port from a sealed state to an open state includes step S31: controlling the piston rod 421B to move in a first moving direction to provide a sealing driving force to move the sealing cover 431 toward the sealed discharge port; the step S52 included in the above-mentioned step of controlling the sealing cover driving device to change the discharge port from an open state to a sealed state further includes S521: controlling the piston rod 421B to move in a second moving direction opposite to the first moving direction to provide an opening driving force to move the sealing cover 431 toward the open discharge port. Therefore, by controlling the operation of the cylinder 421, the piston rod 421B can drive the sealing cover 431 to move, thereby timely and reliably opening or sealing the discharge port, improving the automation efficiency. In particular, after the material is unloaded, the sealing cover 431 can accurately seal the discharge port, thereby preventing a small amount of material remaining at the discharge port from accidentally falling into the sagger 2, and preventing an unexpected deviation in the weight of the material in the sagger 2. It should be noted that the above-mentioned opening or sealing of the discharge port includes directly realizing it by opening or sealing the discharge port, and also indirectly realizing it by opening or sealing the discharge hole 214B.

[0047] refer to Figures 4 to 28 As another object of the present invention, a filling machine for preparing lithium battery materials is provided, the filling machine for preparing lithium battery materials includes a controller, the controller adopts any one of the control methods for preparing lithium battery materials to control the filling machine for preparing lithium battery materials, and the controller is electrically connected to a material supply device, a sagger conveying device, a sagger lifting device and a sealing cover driving device. The filling machine for preparing lithium battery materials has the beneficial effects of any one of the control methods for preparing lithium battery materials, which will not be repeated here. Therefore, since the filling machine for preparing lithium battery materials adopts a controller as a whole machine to control each device in an interrelated manner to complete the filling, it not only reduces the cost of the filling machine for preparing lithium battery materials but also improves the automation rate and accuracy of the operation.

[0048] Please refer to further Figures 4 to 13Specifically, the silo 201 also includes a cover plate 201B with a material inlet. The material supply device of the loader for preparing lithium battery materials includes a stirring motor 202, a rotating shaft 203, a stirring mechanism and a feeding mechanism. The stirring motor 202 is arranged on the cover plate 201B and includes a drive shaft (not shown). The rotating shaft 203 extends in the silo body 201A and is connected to the drive shaft. The stirring mechanism is fixedly connected to the rotating shaft 203 in the circumferential direction and slides along the inner wall of the silo body 201A under the drive of the rotating shaft 203. In addition, it can be known that the stirring mechanism rotates synchronously with the rotating shaft 203 and exerts a stirring force on the material in the silo body 201A and the material at the inner wall of the silo body 201A during the rotation process. The stirring mechanism includes a hollow transmission shaft 205, which is fixedly sleeved on the outer periphery of the rotating shaft 203. A pair of fixed surfaces (not shown) are provided on the outer periphery of the transmission shaft 205. A fixed component is arranged on each fixed surface, and the fixed component is fixedly connected to the scraper component. The scraper component includes a scraper 208 that slides along the inner wall of the bin body 201A. In this way, the rotating shaft 203 is used to drive the transmission shaft 205 to rotate, thereby driving the scraper 208 to stir the material in the bin body 201A along the inner wall of the bin body 201A, thereby avoiding the material from agglomerating and adhering to the inner wall for a long time, and accelerating the movement of the material during the material discharge process, thereby improving the material discharge efficiency. In addition, the fixed surfaces are set as a pair and are radially symmetrical relative to the transmission shaft 205. Therefore, when the transmission shaft 205 rotates half a circle, the two scrapers 208 can rotate one circle together in the bin body 201A, thereby improving the stirring efficiency per unit time. The fixed component includes a fixed plate 206 and a stirring rod 207 fixedly connected to the fixed surface. Both ends of the stirring rod 207 are provided with fixed concave surfaces. The scraper assembly also includes a first clamping plate 209 and a second clamping plate 211 that are fixed to each other and clamp the scraper 208 therebetween, and the first clamping plate 209 has a fixed block 210. The two fixed concave surfaces are fixedly connected to the fixed plate 206 and the fixed block 210 respectively. Therefore, by adopting the above-mentioned fixing methods, the stirring rod 207 can be firmly fixed to the transmission shaft 205, and then the scraper 208 can be firmly fixed to the stirring rod 207, ensuring reliable and high-quality operation of the scraper 208. The feeding mechanism is axially fixedly connected to the rotating shaft 203, and rotates with the rotating shaft 203 to transport the material to the discharge port. The feeding mechanism includes a transmission shaft 212 fixed to the shaft end of the rotating shaft 203, and the shaft end is the other end opposite to the driving end of the rotating shaft 203 connected to the stirring motor 202. A spiral conveying protrusion 212A extending toward the discharge port is provided on the outer periphery of the transmission shaft 212. Therefore, during the rotation of the transmission shaft 212, the spiral conveying protrusion 212A can push the material located in the spiral conveying protrusion 212A toward the discharge port along the axial direction of the transmission shaft 212, and the material pushing amount per unit time is basically the same, thereby ensuring that the material is transported to the discharge port at a uniform speed and with a controllable total weight.A dust cover 213 is fixed at the connection between the rotating shaft 203 and the transmission shaft 212, and a rotating boss 203A extending toward the transmission shaft 212 is provided on the outer periphery of the rotating shaft 203 located in the dust cover 213. In this way, the dust cover 213 can prevent materials from entering between the rotating shaft 203 and the transmission shaft 212, and the rotating boss 203A can push out even a small amount of materials entering between the two, thereby avoiding the adverse effect of the materials on the reliable transmission connection between the two. A lower material pipe 214 is fixedly connected to the outside of the above-mentioned discharge port, and a discharge plate 214A with multiple discharge holes 214B is fixed at the bottom of the lower material pipe 214. The spiral conveying protrusion 212A extends into the lower material pipe 214, and the free end of the transmission shaft 212 opposite to the rotating shaft 203 is rotatably connected to the adapter hole set on the discharge plate 214A. In this way, both ends of the transmission shaft 212 are rotationally fixed, and the spiral conveying protrusion 212A conveys the material to the lower material pipe 214, and then the material is discharged through the discharge hole 214B. The lower material pipe 214 plays the role of collecting and buffering the material, and the multiple discharge ports can discharge the material evenly and dispersedly, thereby avoiding the material from accumulating too much in a narrow position of the sagger 2, resulting in a decrease in the falling efficiency caused by excessive material accumulation. In addition, a storage barrel 103 connected to the silo 201 is provided on the frame 1, and the material enters the storage barrel 103 through a feeding pipe 101 and further enters the silo 201. Therefore, since the material supply device of the filling machine for preparing lithium battery materials is arranged to have a stirring mechanism and a feeding mechanism, the circumferential force and axial force of the rotation of the rotating shaft 203 are used to drive the stirring mechanism and the feeding mechanism to move respectively, thereby realizing the stirring and feeding functions simultaneously in the material unloading process, thereby obtaining a very high material unloading efficiency, and the stirring mechanism and the feeding mechanism are respectively fixed on the rotating shaft 203, which is not only low in cost, but also easy to disassemble and maintain.

[0049] Please refer to further Fig.10 , further optimized, the loader for preparing lithium battery materials also includes a bearing assembly 204 arranged on the cover plate 201B facing the inside of the bin body 201A, the bearing assembly 204 includes a main shaft ring 204A sleeved on the outer periphery of the rotating shaft 203, and an O-ring and an oil seal assembly (not shown) are provided at the matching position between the main shaft ring 204A and the rotating shaft 203, so that a reliable sealed and low-wear driving connection between the rotating shaft 203 and the driving shaft is ensured.

[0050] Please refer to further Figures 13 to 24The sealing cover driving device of the filling machine for preparing lithium battery materials includes a supporting assembly 410, a telescopic assembly 420, a rotating assembly 430 and a rotating assembly 440, wherein the supporting assembly 410 includes a first supporting plate 411 and a support fixed on a first side surface of the first supporting plate 411; the telescopic assembly 420 is supported by the supporting assembly 410 in a telescopic manner and includes a cylinder 421 having a cylinder barrel 421A and a piston rod 421B, and the cylinder barrel 421A is fixed on the support. It can be understood that the cylinder 421 can adopt a mini cylinder, and the cylinder 421 is electrically connected to the controller, so that by controlling the cylinder 421, it can be ensured that when it is necessary to discharge materials into the sagger 2, for example, the discharge hole 21 on the discharge pipe 214 is opened in time. 4B (to be further explained below) and the discharge hole 214B is closed in time after the material falls to the sagger 2 and reaches a predetermined weight, thereby improving the material discharge efficiency to the sagger 2 and ensuring that the material of precise weight is supplied to the sagger 2; the rotating assembly 430 receives the telescopic driving force of the telescopic assembly 420 and includes a supporting rod 432 and a pivot plate 436 and a sealing cover 431 fixedly connected. It can be seen that an adapter plate (not shown) can be provided between the pivot plate 436 and the sealing cover 431 to adjust the movement trajectory of the sealing cover 431 to ensure that the sealing cover 431 reliably realizes the sealing function, and the two ends of the pivot plate 436 are respectively connected to the free end of the piston rod 421B and the sealing cover 431 through, for example, an adapter plate. The pivot plate 436 rotates in the interval space between the first clamp plate 441 and the second clamp plate 442, so that the pivot plate 436 can move reliably and limitedly in the interval space, and the first plate hole (not shown) of the first clamp plate 441 and the second plate hole 442A of the second clamp plate 442 respectively support the first rod end and the second rod end of the support rod 432 for rotation, so that the pivot plate 436 can realize accurate rotation angle movement around the support rod 432; the support assembly 440 supports the rotating assembly 430 so that the rotating assembly 430 drives the sealing cover 431 to move between a first position in an open state and a second position in a sealed state under the drive of the telescopic driving force, and the support assembly 440 includes a first clamp plate 441 and a second clamp plate 442 fixed on the second side surface of the first support plate 411 facing away from the support and spaced in parallel, and the support and the two clamp plates are respectively arranged on the two back sides of the first support plate 411, so that the support assembly 410 and the support assembly 440 are both compact in structure. In this way, since the sealing cover 431 is driven in a rotational manner, the discharge port or discharge hole 214B of the loading machine for preparing lithium battery materials can be opened and sealed directly or indirectly accordingly, which can avoid the occurrence of interference, thereby ensuring high movement reliability. In addition, the sealing cover 431 is basically vertically covered on the discharge port or discharge hole 214B in a rotational manner, which is not easy to produce a pattern, thereby obtaining a good sealing effect.The support assembly 440 also includes a cam 443 having a circumferential portion 443A and a protruding portion 443B, a tension spring 444, a rotating wheel frame 445, and a rotating wheel 446 rotatably supported on the rotating wheel frame 445, wherein the tension spring 444 is in an elongated state, the number of rotating wheels 446 can be flexibly determined according to the size of the circumference of the matching cam 443, and the rotating wheel 446 can be rotatably supported by a plug-in rod (not shown) installed on the rotating wheel frame 445, and the support rod 432 includes a first shaft rod 433, a second shaft rod 434 and a third shaft rod 435, the diameters of which decrease in sequence. 5. A first concave surface 433A and a second concave surface 434A are respectively provided on the first shaft rod 433 and the second shaft rod 434, a first groove 435A is provided on the third shaft rod 435, a plate hole concave surface 436A and a wheel hole concave surface are respectively provided on the pivot plate 436 and the cam 443, and a pair of limiting holes 436B connected to the plate hole with the plate hole concave surface 436A are also provided on the pivot plate 436, and a groove for limiting the position of the support rod 432 in the pivot plate 436 is fixed in the limiting holes 436B. The latch (not shown) of the pivot plate 436 can reliably transmit the telescopic driving force of the piston rod 421B received to the support rod 432, thereby driving the rotation of the cam 443. The support assembly also includes a second support plate 412 and a fixing screw 413 fixed on the side fixing plate 447. The second support plate 412 is fixedly connected to the end of the first clamping plate 441 facing away from the first support plate 411. The cam 443 is arranged on the outside of the first clamping plate 441. The rotating wheel frame 445 is fixed on the second support plate 412 and faces the cam 443. The two ends of the tension spring 444 are respectively connected to the first concave The groove 435A is fixed to the fixing screw 413, the circumferential portion 443A is in rotational contact with the rotating wheel 446, and in the second position the protrusion 443B is in contact with the rotating wheel 446 to stop the rotation, and the tension spring 444 applies a force to maintain the contact, and since the position of the protrusion 443B relative to the circumferential portion 443A can determine the rotation angle of the cam 443, therefore, by setting the rotation angle of the support rod 432 corresponding to the contact between the protrusion 443B and the rotating wheel 446, the rotation angle of the sealing cover 431 can be accurately determined to ensure an excellent sealing effect. The first plate hole and the second plate hole 442A are both set as waist-shaped holes and the extension direction is parallel to the stretching direction of the tension spring 444, and in the process of the sealing cover 431 moving from the first position to the second position, the support rod 432 rotates and moves relative to the pair of waist-shaped holes. In this way, when the sealing cover 431 seals the discharge hole 214B of the material bin 201, the sealing cover 431 rotates to the bottom of the discharge hole 214B and also moves toward the discharge hole 214B, thereby ensuring that the two are tightly sealed and avoiding mutual wear; for the case where the sealing cover 431 opens the discharge hole 214B, the opposite movement process is used, which will not be repeated.The loading machine for preparing lithium battery materials also includes a feed pipe 214 connected to the bin body 201A, the feed pipe 214 is fixedly connected to the outside of the discharge port, and a discharge hole 214B connected to the discharge port is provided on the feed pipe 214. The discharge hole 214B can be set on a discharge plate 214A fixed to the bottom of the feed pipe 214, and the sealing cover 431 opens and closes the discharge hole 214B in the first position and the second position respectively, thereby opening and closing the discharge port accordingly.

[0051] Preferably, a dust cover 215 is provided around the outer periphery of the feeding tube 214 to receive the material falling from the discharge hole 214B. It is known that the dust cover 215 can be fixedly connected by being fixed to the collar of the hoop on the outer periphery of the feeding tube 214. The dust cover 215 can prevent the dust generated by the material falling into the sagger 2 from overflowing during feeding, which is helpful for the subsequent collection of dust. The support assembly 410 is supported by the dust cover 215. A dust cover 460 is provided at the position where the support assembly 410 passes through the dust cover, so that the dust cover 460 can prevent the dust generated when the material is supplied to the sagger 2 from overflowing from the position where the support assembly 410 passes relative to the dust cover 215. Therefore, when the sagger 2 receives the material, the discharge hole 214B can be sealed in time and accurately, so that the material of accurate weight can be supplied to the sagger 2 to provide a guarantee.

[0052] Please refer to further Fig.21 and Fig. 22 Optionally, the sealing cover driving device also includes an elastic retaining ring 450, and a second groove 434B is provided on the second shaft rod 434. The elastic retaining ring 450 is engaged in the second groove 434B and presses against the outer surface of the cam 443. Therefore, the elastic retaining ring 450 provides an axial force for the cam 443, so that the cam 443 and the support rod 432 are well rotationally connected.

[0053] Please refer to further Fig.15 and Fig.18 Optionally, the support includes a first seat plate 414 and a second seat plate 415 that are perpendicular to each other and a reinforcing support plate 416 connected between the two seat plates. The first seat plate 414 is fixed on the first support plate 411, so that the support has a very high supporting strength. The support assembly 440 also includes a side fixing plate 447 that is fixedly connected to the side surfaces of the first clamping plate 441 and the second clamping plate 442. Therefore, the first clamping plate 441 and the second clamping plate 442 are further well fixed and the interval space is kept from changing due to unexpected external forces, thereby ensuring the stability of the overall normal operation of the sealing cover driving device.

[0054] Please refer to further Fig.17Optionally, the sealing cover 431 is in the shape of a circular disc, and is inclined and parallel to the horizontal plane in the first position and the second position respectively. Therefore, the sealing cover 431 is particularly suitable for good sealing of each discharge hole 214B arranged at the circular bottom of the discharge pipe 214.

[0055] Please refer to further Figure 6 and Fig. 9 Preferably, the sagger conveying device includes a conveying motor 316 supported on the frame 1, a transmission chain 317 driven by the conveying motor 316, a plurality of conveying rollers 318 and a plurality of seat bearings 319, each seat bearing 319 is arranged opposite to the corresponding transmission chain 317 and rotatably supports the conveying rollers 318 installed therein, and each conveying roller 318 is arranged between the transmission chain 317 and the seat bearings 319 in parallel and at intervals along the conveying direction, so as to ensure that the conveying rollers 318 reliably convey the sagger 2 to the position to be lifted and lowered, above which the above-mentioned silo 201 and storage barrel 103 are provided, the material enters the storage barrel 103 through the feed pipe 101 and is further supplied to the sagger 2 through the silo 201, the sagger lifting device is arranged on the side of the position to be lifted and lowered, and the sagger 2 is driven by the sagger lifting device to first rise toward the direction close to the discharge port and receive the material discharged from the discharge port, and then descend to the position to be lifted and lowered in the direction away from the discharge port. Each supporting weighing assembly is located between two adjacent conveying rollers 318 , so the lifting and lowering movement of the supporting weighing assembly will not interfere with the conveying rollers 318 , thereby ensuring the stable and reliable implementation of the lifting and lowering operation of the sagger 2 . The loader for preparing lithium battery materials also includes a chain box 320 and a seat box 321. The transmission chain 317 and each seat bearing 319 are respectively arranged in the chain box 320 and the seat box 321. Preferably, each chain box 320 and each seat box 321 are each fixed to a box plate to form a corresponding enclosed space. Guide plates 322 and multiple guide wheels 323 fixed on the guide plates 322 are relatively arranged on the opposite sides of the chain box 320 and the seat box 321 facing the sagger 2. It can be understood that each guide plate 322 extends in parallel with the conveying direction, and a section of the guide plate 322 is arranged on one side of the seat box 321 and three sections are arranged on one side of the chain box 320. The three sections are respectively located upstream, midstream and downstream of the two reinforcing plates 311 relative to the conveying direction. In this way, the chain box 320 and the seat box 321 are provided to ensure that the transmission chain 317 and the seat bearing 319 are not easily accidentally hit by foreign objects, thereby improving the conveying reliability; and the guide plate 322 and the guide wheel 323 are provided to help guide the sagger 2 to accurately move to the position to be lifted or lowered on the conveying roller 318.

[0056] Please refer to further Figures 6 to 9Specifically, the sagger lifting device includes: a lifting motor 301, a lifting rod 302 that performs telescopic movement under the drive of the lifting motor 301, and a plurality of telescopic support guide columns 303. The lifting rod 302 and each support guide column 303 are inserted into a positioning plate 304, and each end that can approach or move away from the positioning plate 304 is fixedly connected to a support plate 305. A pair of parallel and spaced force transmission blocks 306 are fixed on the side of the support plate 305 facing away from the positioning plate 304. Each force transmission block 306 is respectively fixed to a force column 307 perpendicular to the conveying direction, and a support weighing group is fixed on each force column 307. Each supporting weighing component includes a sensor bracket 308 stacked and fixed in sequence in the direction away from the positioning plate 304, a weighing sensor 309 and a supporting block 310 respectively used for weighing and supporting the sagger 2. The support block 310 transmits the weighing weight of the sagger 2 loaded with materials to the weighing sensor 309 while supporting the sagger 2. The weight of the material can be determined according to the weight of the sagger 2 itself set by the pre-stored program and the weighing weight detected by the weighing sensor 309. Therefore, the sagger lifting device is not only compact and stable in overall structure, but also can ensure stable lifting of the sagger 2 and accurate weighing of the sagger 2.

[0057] Preferably, a plurality of pairs of displacement sensors 324 are respectively arranged on the chain box 320 and the seat box 321 along the conveying direction and at a plurality of positions including the position to be lifted or lowered, and each pair of displacement sensors 324 is symmetrical with respect to a center line passing through the axial midpoint of each conveying roller 318. The displacement sensor may be an infrared sensor and, for example, those located on the chain box 320 are infrared emitting ends and those located on the seat box 321 are infrared receiving ends. Thus, for example, by arranging a pair of displacement sensors at the position where the sagger just arrives at the position to be lifted or lowered, once the infrared rays emitted by the infrared emitting end are blocked by the sagger and the infrared receiving end cannot receive the infrared rays, it is determined that the sagger has reached the position to be lifted or lowered.

[0058] Preferably, the loader for preparing lithium battery materials also includes a collecting mechanism arranged below the position to be lifted and collected when the sagger 2 receives the material. Since the sagger lifting device and the collecting mechanism are arranged staggered to the side and below the position to be lifted where the sagger 2 is located, it is convenient to install the sagger lifting device and can also collect the dust conveniently and with less omission. The collecting mechanism includes a dust receiving hood 314 and a cover 315 having a dust inlet and a dust outlet. The sagger 2 is located within the range of the dust inlet, and the cover 315 can be opened and closed at the dust outlet. Since the dust inlet covers the entire sagger 2 in the direction of gravity, it is possible to collect as much dust as possible, and the cover 315 can be opened when the dust is discharged from the dust receiving hood 314 to further process the dust.

[0059] Further preferably, there are four support guide columns 303, and the lifting rod 302 passes through the center line of the area surrounded by the four support guide columns 303. In this way, when the lifting rod 302 provides power to the center position of the support plate 305 for lifting movement, the four support guide columns 303 can evenly provide support force to the support plate 305, thereby ensuring that the lifting plate drives the sagger 2 on the support block 310 to rise and fall smoothly.

[0060] Further preferably, the force transmission block 306 is configured as an oblique right triangle and is provided with two pairs of openings 306A for respectively plugging in two reinforcing rods (not shown), and a reinforcing plate 311 is provided under the sensor bracket 308. In this way, the reinforcing rods and the reinforcing plate 311 increase the force strength of the force transmission block 306 and the sensor bracket 308, thereby ensuring reliable implementation of the lifting operation.

[0061] Further preferably, the loader for preparing lithium battery materials also includes an accordion cover 312 arranged between the positioning plate 304 and the support plate 305, and the two ends of the accordion cover 312 are respectively fixed to the support plate 305 and an abutment block 313, and the abutment block 313 contacts or separates from the positioning plate 304 during the lifting operation. By setting the accordion cover 312, the speed and distance of the support plate 305 relative to the positioning plate 304 can be made smoother and more accurate.

[0062] Preferably, the controller includes a storage module and a comparison module. It is known that the above-mentioned weighing sensor 309, displacement sensor 324, lifting motor 301, conveying motor 316, and stirring motor 202 are all electrically connected to the controller. The displacement sensor detects the position of the sagger in the conveying direction to obtain displacement data. The weighing sensor detects the weight of the sagger in the state of receiving the supply material to obtain the weighing weight data. The storage module stores displacement threshold data and weight threshold data respectively. The comparison module compares the displacement data with the displacement threshold data and the weighing weight data with the weight threshold data to obtain the corresponding comparison result. In addition, the controller also includes a processing module, and the processing module is connected to the storage module and the comparison module. The processing module executes the running program stored in the storage module while obtaining the result calculated by the comparison module, thereby realizing any of the above steps of the control method for preparing a lithium battery material loading machine. In this way, using a separate controller not only reduces the cost, but also can control the loading of the completed material of the loading machine for preparing lithium battery materials with a high automation rate and accuracy, ensuring that the loading speed and loading amount can meet high requirements.

[0063] refer to Figures 3 to 6 , Figure 25 to Figure 28Optionally, the loading machine for preparing lithium battery materials further comprises a vacuum feeding assembly supported on the frame 1, wherein the vacuum feeding assembly comprises a vacuum generating mechanism (not shown), a feeding pipe 101, and a storage barrel 103 respectively connected to the vacuum generating mechanism and the feeding pipe 101, the storage barrel 103 is provided with a loading port 106 at the bottom end in the gravity direction and remains sealed when being evacuated by the vacuum generating mechanism, the silo 201 comprises a silo body 201A and a cover plate 201B provided with a feeding port, the loading port 106 is connected to the feeding port and a sealing connection assembly and an opening and closing assembly are arranged between the two, the sealing connection assembly ensures that there is no leakage between the loading port 106 and the feeding port, and the opening and closing assembly ensures that when the vacuum generating mechanism evacuates the storage barrel 103, the passage between the loading port 106 and the feeding port is closed The material is sucked into the storage barrel 103 through the feeding pipe 101 by the storage barrel 103 which is in a vacuum state. The storage barrel 103 receives and stores the material supplied through the feeding pipe 101. When the material needs to be supplied to the silo 201, when the opening and closing component is opened, the loading port 106 discharges the material into the silo main body 201A through the feeding port, thereby avoiding the occurrence of dust that is easily generated in the prior art. The material is first stored in the storage barrel 103 to be buffered and then falls into the silo 201, thereby preventing accumulation at the discharge port of the silo 201. In addition, by controlling the opening and closing component to be in an open state or a closed state, the material can be quickly and quickly sucked by vacuum to achieve loading and fall into the silo 201 through the loading port 106 and the feeding port in turn, thereby significantly improving the loading efficiency.

[0064] Please refer to further Fig.25 Specifically, the sealing connection component includes a flange 107 and a sealing ring (not shown), and the opening and closing component includes a butterfly valve 108. The butterfly valve 108 is made of stainless steel and can be electrically connected to a controller to control its open state and closed state, thereby correspondingly realizing the opening and closing of the channel between the loading port 106 and the feeding port.

[0065] Please refer to further Figure 6 and Fig.28 Preferably, the bin body 201A is funnel-shaped, and the projection of the loading port 106 in the gravity direction is located on the inner wall of the bin body 201A. It can be understood that, correspondingly, the projection of the feeding port in the gravity direction is also located on the inner wall of the bin body 201A. In this way, the material falling from the storage barrel 103 into the bin body 201A will slide along the inner wall toward the discharge port, preventing the material from accumulating and agglomerating at the same position in the bin 201, and avoiding adverse effects such as a decrease in the rate of discharge of block materials into the sagger 2 through the discharge port.

[0066] Please refer to further Fig.25Specifically, the storage barrel 103 includes a first empty barrel 103A and a second empty barrel 103B which are fixedly connected to each other. A fixing flange can be provided at each connection point of the first empty barrel 103A and the second empty barrel 103B and the two fixing flanges can be fixed together using a locking nut. The loading port 106 is provided at one end of the second empty barrel 103B away from the first empty barrel 103A. A barrel cover 104 is provided on the first empty barrel 103A. The vacuum generating mechanism and the feeding pipe 101 are respectively connected to the storage barrel 103 through the first opening of the barrel cover 104 and the second opening on the side of the second empty barrel 103B. Since the first empty cylinder 103A and the second empty cylinder 103B are in a split form, the second empty cylinder 103B with different axial lengths can be selected according to different conditions such as the weight of the material to be loaded into the sagger 2 during loading, thereby improving the applicability of the sagger machine for preparing lithium battery materials. The feed pipe 101 is spaced a distance from the first empty cylinder 103A, thereby facilitating the arrangement of components such as filter elements in the first empty cylinder 103A.

[0067] Preferably, the bowl loading machine for preparing lithium battery materials also includes a gas tank 109 connected to the storage barrel 103 through the third opening of the cylinder cover 104, and the gas tank 109 can evacuate or exhaust the storage barrel 103, thereby adjusting the pressure value in the storage barrel 103. An angle seat valve assembly 110 is connected to the first opening, and the vacuum generating mechanism is connected to the storage barrel 103 through the angle seat valve assembly 110. By setting the angle seat valve assembly 110, it is possible to adapt to the frequent start-up of the vacuum generating mechanism in a short time, so as to maintain the flow rate to ensure that the pressure value in the storage barrel 103 meets the requirements of sucking materials, and save space. The first central axis of the first opening coincides with the central symmetry line of the cover plate 201B, the third central axis of the third opening is parallel to the first central axis, and the second central axis of the second opening passes through the first central axis and the third central axis vertically. In this way, it is not only conducive to the arrangement of the pipeline to make the overall structure compact, but also convenient for the interval separation of the gas path and the material path.

[0068] Preferably, the first empty cylinder 103A is set as a first straight cylinder, and the second empty cylinder 103B includes a second straight cylinder and a lower conical body. The second straight cylinder has the same diameter as the first straight cylinder, and the lower conical body is set to taper toward the loading port 106. In this way, the material entering the storage barrel 103 can be accelerated to a certain extent under the guidance of the inner wall of the lower conical body to enter the loading port 106, thereby improving the loading efficiency.

[0069] Please refer to further Fig. 27Preferably, a sealing cover plate 102 which can movably open and close the feeding pipe 101 is provided at one end of the feeding pipe 101 extending into the second empty cylinder 103B. The sealing cover plate 102 can, for example, be automatically opened and closed in response to the pressure value in the storage cylinder 103, or it can be driven to open and close by a driving component connected to the sealing cover plate 102 controlled by a controller. Regardless of the opening and closing method adopted, the purpose is to enable the sealing cover plate 102 to be opened when feeding and closed when not feeding.

[0070] Please refer to further Figure 26 to Figure 28 Preferably, a hollow connecting column is provided above the first empty cylinder 103A, and a cylinder cover 104 and a partition 105 are respectively provided at both ends of the hollow connecting column, and a plurality of filter elements 111 passing through the partition 105 are arranged in parallel and spaced apart in the vertical direction in the first empty cylinder 103A. By providing a plurality of filter elements 111, it is possible to avoid the material in the storage cylinder 103 from being sucked into the vacuum generating mechanism, thereby ensuring normal operation.

[0071] Please refer to further Fig. 27 Preferably, the end opening 101A of the feed pipe 101 has an oblique circular surface, and the sealing cover plate 102 has a full circular portion adapted to the oblique circular surface, which is conducive to ensuring the sealing fit between the sealing cover plate 102 and the end of the feed pipe 101 to achieve closing of the end opening 101A. The oblique circular surface faces the filter element 111 and the farthest end is located above the loading port 106, which makes it easier for the material to receive the suction force and enter the storage barrel 103 and fall toward the loading port 106.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filling machine for preparing lithium battery materials, It is characterized in that include: frame; A silo, which is arranged on the frame and comprises a cover plate provided with a material inlet and a silo body provided with a material discharge port at the bottom; A material supply device for supplying materials in the bin body to the sagger, the material supply device comprising: A stirring motor, which is disposed on the cover plate and includes a driving shaft; a rotating shaft extending in the bin body and drivingly connected to the drive shaft; A stirring mechanism, which is fixedly connected to the rotating shaft in the circumferential direction and slides along the inner wall of the bin body under the drive of the rotating shaft; A feeding mechanism, which is axially fixedly connected to the rotating shaft and conveys the material to the discharge port; The feeding mechanism comprises a transmission shaft fixed to the shaft end of the rotating shaft, a spiral conveying protrusion extending toward the discharge port is provided on the outer periphery of the transmission shaft, a dust cover is fixed at the connection between the rotating shaft and the transmission shaft, and a rotating boss extending toward the transmission shaft is provided on the outer periphery of the rotating shaft located in the dust cover; A lower material pipe is fixedly connected to the outside of the discharge port, a discharge plate with a plurality of discharge holes is fixed at the bottom of the lower material pipe, the spiral conveying protrusion extends into the lower material pipe, and the free end of the transmission shaft is rotatably connected to the adapter hole provided on the discharge plate; The lithium battery material preparation machine further comprises a sealing cover driving device, wherein the sealing cover driving device comprises: A support assembly comprising a first support plate and a support fixed to a first side surface of the first support plate; a telescopic assembly, which is supported by the support assembly in a telescopic manner and includes a cylinder having a cylinder barrel and a piston rod, wherein the cylinder barrel is fixed to the support; A rotating assembly, which receives the telescopic driving force of the telescopic assembly and includes a supporting rod and a pivot plate and a sealing cover that are fixedly connected; A support assembly, which supports the rotating assembly so that the rotating assembly drives the sealing cover to move between a first position in an open state for opening the discharge port and a second position in a sealed state for sealing the discharge port under the driving force of the telescopic driving force; The pivot assembly comprises a first clamping plate and a second clamping plate fixed on a second side surface of the first supporting plate facing away from the support and spaced in parallel, the two ends of the pivoting plate are respectively drivingly connected to the free end of the piston rod and the sealing cover, the pivoting plate rotates in the interval between the first clamping plate and the second clamping plate, the first plate hole of the first clamping plate and the second plate hole of the second clamping plate are respectively supported by the first rod end and the second rod end of the pivot rod; The cam is arranged on the outer side of the first clamping plate, the rotating wheel frame is fixed on the second supporting plate and faces the cam, and the two ends of the tension spring are respectively fixed with the first groove and the fixing screw, the circumferential portion is in abutment with the rotating wheel, and the protrusion is in abutment with the rotating wheel at the second position.

2. The lithium battery material loading machine according to claim 1, It is characterized in that The loader for preparing lithium battery materials also includes a bearing assembly set arranged on the cover plate facing the interior of the bin body, the bearing assembly set includes a main shaft ring sleeved on the outer periphery of the rotating shaft, and an O-ring and an oil seal assembly are provided at the matching position between the main shaft ring and the rotating shaft.

3. The loader for preparing lithium battery materials according to claim 1, It is characterized in that The stirring mechanism includes a hollow transmission shaft, which is fixedly sleeved on the outer periphery of the rotating shaft. A pair of fixed surfaces are provided on the outer periphery of the transmission shaft, and a fixed component is arranged on each of the fixed surfaces. The fixed component is fixedly connected to the scraper assembly, and the scraper assembly includes a scraper that slides and rubs along the inner wall of the bin body.

4. The loader for preparing lithium battery materials according to claim 3, It is characterized in that The fixing surfaces are arranged as a pair and are radially symmetrical with respect to the transmission shaft, the fixing assembly comprises a fixing plate and a stirring rod fixedly connected to the fixing surface, both ends of the stirring rod are provided with fixing concave surfaces, the scraper assembly also comprises a first clamping plate and a second clamping plate fixed to each other and clamping the scraper therebetween, and the first clamping plate has a fixing block, and the two fixing concave surfaces are fixedly connected to the fixing plate and the fixing block respectively.

5. The loader for preparing lithium battery materials according to claim 1, It is characterized in that The first plate hole and the second plate hole are both configured as waist-shaped holes and their extension direction is parallel to the stretching direction of the stretching spring, and in the process of the sealing cover moving from the first position to the second position, the support rod rotates and moves relative to a pair of the waist-shaped holes, a dust cover is provided on the outer periphery of the discharge pipe to surround the sagger for receiving the material falling from the discharge hole, the support assembly is supported by the dust cover, and a dust cover is provided at the position where the support assembly passes the dust cover.

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