Lithium battery lithium salt ton barrel fully automatic filling detection device and method

Abstract

The present invention discloses a fully automatic filling and testing device and method for lithium battery lithium salt ton barrels. The device comprises at least one device unit, comprising a device unit body, a lifting, transferring, and weighing mechanism, and a filling mechanism. The lifting, transferring, and weighing mechanism comprises a transfer component that moves in the x- and y-axis directions to transfer the horizontal position of the lithium salt ton barrel to be filled, and a lifting component that lifts or lowers the lithium salt ton barrel to be weighed on the weighing component. The filling mechanism comprises a first filling component that is connected to an external pipeline, and a second filling component that interfaces with the ton barrel interface of the lithium salt ton barrel. The device of the present invention can fully automate the filling and weighing operations, reducing labor intensity, improving weighing accuracy, and saving materials.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery technology, and in particular to a fully automatic filling and detection device and method for lithium battery lithium salt ton barrels that can be used for lithium battery lithium salt and other powder materials. Background Art

[0002] At present, many lithium battery and lithium salt production companies use manual filling or semi-automatic filling in their packaging processes. The current market price of lithium battery raw materials, especially lithium salt, is expensive. Especially for filling large-volume barrels, higher metering accuracy is particularly important. However, the current market manual filling or semi-automatic filling accuracy is low, which may cause great profit losses for lithium salt manufacturers.

[0003] Secondly, many materials are toxic or corrosive. For workers who work at these locations for long periods of time, they can easily become fatigued and reduce work efficiency. This further increases the chance of materials coming into contact with air, reducing material quality. Even the slightest carelessness in operation can lead to a greater risk of occupational injury or even accidents. While increasing manpower to reduce labor intensity and injuries can result in higher labor costs, some materials also require isolation from air and moisture before filling to prevent quality issues.

[0004] In addition, manual filling data is difficult to enter into the quality management system in a timely and accurate manner, which is not conducive to monitoring and traceability. Summary of the Invention

[0005] The object of the present invention is to provide a device and method for automatically performing filling and weighing.

[0006] To achieve the above object, the solution adopted by the present invention is:

[0007] A fully automatic filling and testing device for lithium battery and lithium salt ton barrels, comprising at least one device unit. The device unit comprises a device unit body, a lifting, transfer, and weighing mechanism, and a filling mechanism. The lifting, transfer, and weighing mechanism comprises a base frame, a transfer assembly, a weighing assembly, and a lifting assembly. The base frame is used to carry the transfer assembly, the weighing assembly, and the lifting assembly. The transfer assembly is used to move in the x-axis and y-axis directions to transfer the horizontal position of the lithium salt ton barrel to be filled. The lifting assembly is used to lift the lithium salt ton barrel for lifting, or lower it to be carried on the weighing assembly for weighing. The filling mechanism comprises a first filling assembly and a second filling assembly. The first filling assembly is used to connect to an external pipeline, and the second filling assembly is used to interface with the ton barrel interface of the lithium salt ton barrel.

[0008] According to the above-mentioned lithium battery lithium salt ton barrel fully automatic filling and detection device, the transfer assembly includes a first transfer plate, a first slide rail pair, a first transfer assembly, a first transfer connector, a second transfer plate, a second slide rail pair, a second transfer assembly, a second transfer connector and a second transfer plate.

[0009] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the first transfer plate is set to slide along the x-axis direction through two pairs of first slide rail pairs, and the second transfer plate is set to slide along the y-axis direction through two pairs of second slide rail pairs. The first transfer assembly and the second transfer assembly respectively drive the sliding of the first transfer plate and the second transfer plate, and include a screw rod and a nut member threaded thereon.

[0010] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the lifting assembly includes a lifting plate, a lifting guide and a lifting unit. The lifting unit is arranged between the second transfer plate and the lifting plate to lift the lifting plate through the action of the lifting unit. The lifting guide is arranged to pass through the corresponding through hole of the second transfer plate to guide during lifting.

[0011] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the lifting assembly also includes a first bearing member, a second bearing member and a bearing seat. The first bearing member has one and is arranged along the x-axis or y-axis direction. A second bearing member arranged along the length direction of the base frame is respectively connected at both ends of the first bearing member, and a bearing seat is respectively provided outside the two ends of the two second bearing members.

[0012] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the first supporting member is located above the lifting plate.

[0013] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the weighing assembly includes a weighing base connected to the second transfer plate and a weighing unit arranged on the weighing base and located below the bearing seat.

[0014] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the first filling assembly includes a first filling platform, a second filling platform and a telescopic drive assembly. The first filling platform is fixed to the top of the frame, and the second filling platform is telescopically and movably connected to the first filling platform through the telescopic drive assembly.

[0015] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the second filling assembly includes a third filling platform, a filling connector, a third filling pipeline, a third filling joint and a second filling joint. The third filling platform is fixed to the second filling platform via the filling connector so as to move with the second filling platform. The second filling joint is arranged at the upper port of the third filling pipeline and is connected to the first filling joint via a flexible connecting pipe. The third filling joint is formed at the lower port of the third filling pipeline for connection with the ton barrel interface.

[0016] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the first filling assembly includes a first filling pipeline, a first filling pipeline and a first filling joint. The upper ends of the first filling pipeline and the first filling pipeline are respectively formed as connecting ports, and the lower ends of the first filling pipeline and the first filling pipeline are respectively connected to the first filling joint. The first filling assembly also has a terminal box for connecting the circuit or air circuit of the filling mechanism to it.

[0017] According to the above-mentioned lithium battery lithium salt ton barrel fully automatic filling and detection device, the telescopic drive component is composed of a telescopic cylinder, and the flexible connecting pipe is a flexible pipe or a corrugated pipe to achieve a flexible connection between the first filling joint and the third filling pipeline.

[0018] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, two barrel mouth detection components separated in the radial direction are further provided on the bottom surface of the third filling platform.

[0019] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the ton barrel interface and the third filling joint are locked to each other through a docking locking assembly, and the docking locking assembly includes a fixed rod, a locking drive source and an L-shaped locking rod. The fixed rod is fixedly arranged, and the L-shaped locking rod is hinged to the fixed rod at its first hinge point. The two ends of the locking drive source are respectively hinged to the fixed rod and the second hinge point of the L-shaped locking rod. A locking wheel is hinged at the locking end of the L-shaped locking rod to act on the locking groove of the ton barrel interface to lock the ton barrel interface and the third filling joint.

[0020] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, a ball valve is also provided on the third filling pipeline to control the on and off of the third filling pipeline, and its position is preferably set close to the lower port. The second filling component also includes a purge component and an exhaust component connected to the third filling pipeline.

[0021] According to the above-mentioned lithium battery lithium salt ton barrel fully automatic filling and detection device, it also includes a ball valve switch mechanism, which includes a first plate, a third guide rail pair, a second plate, a fourth guide rail pair, a third plate, a driving member and an action member.

[0022] According to the above-mentioned fully automatic filling and testing device for lithium battery lithium salt ton barrels, the base frame is formed by a plurality of frame members fixedly connected together. The base frame is provided with a base frame fixing for fixing the frame members of the frame mechanism thereto. The base frame is also provided with a blocking column and a blocking member provided at the top of the blocking column. The blocking member is retractably arranged relative to the conveying surface of the conveying mechanism. When it is in the retracted position, the blocking member is lower than the conveying surface of the conveying mechanism so as not to prevent the conveying of the lithium salt ton barrel on the conveying mechanism. When it is in the extended position, the blocking member is higher than the conveying surface of the conveying mechanism to limit the lithium salt ton barrel to keep it in a certain position. Therefore, the conveying mechanism can be operated without stopping, and it can also ensure that the lifting of the lithium salt ton barrel by the lifting, transfer and weighing mechanism is not affected by the conveying.

[0023] According to the aforementioned fully automatic filling and testing device for lithium battery and lithium salt ton barrels, the conveyor mechanism includes two opposing conveyor racks and a conveyor roller rotatably positioned between the two conveyor racks. At least one conveyor roller is connected to a drive mechanism for rotation and conveyance. Several conveyor rollers are removed from the conveyor mechanism to form a lifting port for the lifting, transfer, and weighing mechanism to lift, transfer, or weigh the lithium salt ton barrels. Furthermore, the conveyor mechanism is equipped with a detection mechanism for detecting the position of the lithium salt ton barrel within the conveyor mechanism to determine whether it has been delivered to the designated location.

[0024] Preferably, there are two lifting ports, the distance between which corresponds to the structure of the lifting, transferring and weighing mechanism. The detection mechanism is located on both sides of the conveying mechanism and is composed of infrared sensors to determine whether the lithium salt barrel is conveyed to the predetermined position.

[0025] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the device unit body is specifically composed of a frame mechanism and a conveying mechanism. The frame mechanism is located on the conveying mechanism to allow the lithium salt ton barrels to stay in the frame mechanism for filling and weighing when being conveyed along the conveying mechanism.

[0026] According to the aforementioned fully automatic filling and testing device for lithium battery and lithium salt ton-sized barrels, the frame mechanism comprises a plurality of interconnected frame members forming a square frame, and its structural strength meets load-bearing requirements. A frame top is provided on the top surface of the frame mechanism, and a frame cavity is formed within the frame mechanism. The frame cavity has openings on opposite sides to allow the entry and exit of ton-sized barrels. Furthermore, a control panel and a connection panel are fixed to the frame mechanism. The control panel is electrically connected to the lifting, transfer, and weighing mechanism and the filling mechanism for operation, communication, or display. The connection panel has air or circuit interfaces for connecting the air or circuits of the lifting, transfer, and weighing mechanism or the filling mechanism.

[0027] According to the above-mentioned fully automatic filling and detection device for lithium battery lithium salt ton barrels, the control panel is also connected to the server via the network or network cable to synchronize the filling data in real time.

[0028] According to the aforementioned fully automatic filling and testing device for lithium battery and lithium salt ton barrels, the lithium salt ton barrel includes a ton barrel rack, which has a ton barrel cavity formed therein for accommodating the ton barrel. The ton barrel rack should have sufficient structural strength to meet load-bearing requirements. The ton barrel rack is provided with a ton barrel fixing seat for securing the ton barrel thereto, a ton barrel interface is provided at the center of the top of the ton barrel, and an exhaust interface and a lifting hook are also provided on the outside of the top of the ton barrel for ventilation and lifting, respectively.

[0029] A fully automatic filling and weighing method for lithium battery lithium salt ton barrels, the method is implemented based on any of the devices described above.

[0030] The device and method of the present invention have the following beneficial effects:

[0031] 1. The equipment can automatically fill lithium salts. The entire filling process does not require human intervention and can achieve higher measurement accuracy and product quality.

[0032] 2. Compared with the existing technology, the present invention can achieve higher measurement accuracy. In addition to selecting a high-precision weighing sensor, the floating docking mechanism in the filling mechanism plays a key role. This mechanism can float freely up and down while ensuring sealing performance. The locking force applied by the lock hook assembly is an internal force, and only the weight of the docking mechanism itself is constantly applied to the packaging barrel, making it easy to obtain the actual mass of the material.

[0033] 3. Since the filling process uses fully automated detection and data storage, human intervention is avoided, which can well ensure product quality and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural diagram of a filling detection device according to an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 A schematic structural diagram of the frame mechanism in the embodiment;

[0036] Figure 3 is used for Figure 1 A schematic structural diagram of a lithium salt ton barrel according to an embodiment;

[0037] Figure 4 yes Figure 1 A schematic structural diagram of the transmission mechanism in the embodiment;

[0038] Figure 5 yes Figure 1 A schematic structural diagram of the lifting, transferring and weighing mechanism in the embodiment;

[0039] Figure 6 yes Figure 5 A schematic diagram of the structure of the lifting and transferring components;

[0040] Figure 7 yes Figure 1 A schematic structural diagram of a filling mechanism in an embodiment;

[0041] Figure 8 yes Figure 7 A schematic diagram of the top structure of the filling component;

[0042] Figure 9 yes Figure 8 A bottom structural diagram of a filling component;

[0043] Figure 10 yes Figure 8 A schematic structural diagram of the docking and locking assembly in the filling assembly when in an unlocked state;

[0044] Figure 11 yes Figure 10 A schematic structural diagram of the docking locking assembly in a locked state;

[0045] Figure 12 yes Figure 7 Schematic diagram of the coordination structure of the ball valve switch mechanism and the ball valve;

[0046] Figure 13 yes Figure 12 Schematic diagram of the structure of the ball valve switch mechanism.

[0047] in,

[0048] Device unit main body 10, lifting, transferring and weighing mechanism 20, filling mechanism 30,

[0049] Frame mechanism 11, transmission mechanism 12, lithium salt barrel 13,

[0050] Frame 111, frame cavity 112, frame top 113, control panel 114, connection panel 115,

[0051] Conveying rack 121, conveying roller 122, lifting port 123, detecting mechanism 124,

[0052] Ton barrel rack 131, ton barrel cavity 132, ton barrel fixing seat 133, ton barrel 134, ton barrel interface 135, exhaust interface 136, lifting hook 137,

[0053] Base frame 21, transfer assembly 22, weighing assembly 23, lifting assembly 24,

[0054] Base frame fixing seat 211, blocking column 212, blocking member 213,

[0055] The first transfer plate 221, the first slide rail pair 222, the first transfer assembly 223, the first transfer connector 224, the second transfer plate 225, the second slide rail pair 226, the second transfer assembly 227, the second transfer connector 228, the second transfer plate 229,

[0056] Weighing chassis 231, weighing unit 232, first bearing member 233, second bearing member 234, bearing seat 235,

[0057] Lifting plate 241, lifting guide 242, lifting unit 243,

[0058] First filling pipeline 301, first filling pipeline 302, first filling joint 303, terminal box 304,

[0059] First filling assembly 31, second filling assembly 32, docking locking assembly 33, ball valve switch mechanism 34,

[0060] First filling platform 311, second filling platform 312, telescopic drive assembly 313, flexible connecting pipe 314,

[0061] The third filling platform 321, the filling connector 322, the third filling pipeline 323, the second filling joint 329, the third filling joint 324, the ball valve 325, the purge assembly 326, the exhaust assembly 327, the barrel mouth detection assembly 328,

[0062] Fixed rod 331, locking drive source 332, L-shaped locking rod 333, locking wheel 334, locking groove 335, docking guide 336,

[0063] The first plate 341 , the third guide rail pair 342 , the second plate 343 , the fourth guide rail pair 344 , the third plate 345 , the driving member 346 , and the action member 347 . DETAILED DESCRIPTION

[0064] In order to enable those skilled in the art to better understand the present invention, thereby making a clearer definition of the scope of protection of the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific embodiments of the present invention, which are only part of the embodiments of the present invention, wherein the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention. Conventional selections and replacements made by those skilled in the art under the guidance of the present invention should all be deemed to be within the scope of protection of the present invention.

[0065] A fully automatic filling and testing device for lithium battery lithium salt ton barrels can be used to fully automatically fill and weigh lithium salt to output filled lithium salt ton barrels with a predetermined quality.

[0066] The filling detection device is composed of at least one device unit. When there are multiple device units, they can be arranged in series or in parallel. For example, two or more device units are connected in parallel to form multiple filling weighing circuits, each circuit has one device unit, and each device unit obtains empty ton barrels from the same pre-filling station and transports the filled ton barrels to the same post-filling station; or, two or more device units are connected in series to form one or more filling weighing circuits, and the empty ton barrels are output from the pre-filling station to the designated device unit for filling operation and transported to the post-filling station after filling is completed.

[0067] like Figure 1 As shown, the above-mentioned device unit is composed of a device unit body 10 , a lifting, transferring and weighing mechanism 20 and a filling mechanism 30 .

[0068] The device unit body 10 is specifically composed of a frame mechanism 11 and a conveying mechanism 12. The frame mechanism 11 is located on the conveying mechanism 12 to allow the lithium salt barrel 13 to stay in the frame mechanism 11 for filling and weighing when being conveyed along the conveying mechanism 12.

[0069] like Figure 2 As shown, the frame mechanism 11 includes a number of frame members 111 that are interconnected (welded, clamped, screwed, etc.) to form a square frame, and its structural strength meets the load-bearing requirements. A frame top 113 is provided on the top surface of the frame mechanism 11, and a frame cavity 112 is formed inside. The frame cavity 112 has openings on its opposite sides to allow the ton barrel 13 to enter and exit. In addition, a control panel 114 and a connection panel 115 are fixed to the frame mechanism 11. The control panel 114 is electrically connected to the lifting, transferring and weighing mechanism 20 and the filling mechanism 30 for operation, communication or display. The connection panel 115 has an air path or circuit interface for connecting the air path or circuit of the lifting, transferring and weighing mechanism 20 or the filling mechanism 30 to it.

[0070] In this embodiment, the control panel 114 is further connected to the server via a network or a network cable to synchronize the filling data in real time.

[0071] like Figure 3As shown, the lithium salt ton barrel 13 used in this embodiment has a ton barrel rack 131. A ton barrel cavity 132 is formed within the ton barrel rack 131 for accommodating a ton barrel 134. The ton barrel rack 131 should have sufficient structural strength to meet load-bearing requirements. A ton barrel fixing seat 133 is provided on the ton barrel rack 131 for securing the ton barrel 134 thereto. A ton barrel port 135 is provided at the top center of the ton barrel 134 for filling the ton barrel 134 with lithium salt. An exhaust port 136 and a lifting hook 137 are also provided on the top and outside of the ton barrel 134 for ventilation / exhaust or lifting, respectively. Of course, in other embodiments, the filling operation can also be performed on lithium salt ton barrels of other known structures.

[0072] like Figure 4 As shown, the conveying mechanism 12 of this embodiment also utilizes a roller-type conveyor. Of course, other known conveying mechanisms can be substituted in other embodiments. In this embodiment, the conveying mechanism 12 comprises two opposing conveying racks 121 and conveying rollers 122 rotatably disposed between the two conveying racks 121. At least one of the conveying rollers 122 is connected to a drive mechanism for rotation and conveying. Several conveying rollers 122 are omitted from the conveying mechanism 12, forming lifting ports 123 for the lifting, transfer, or weighing mechanism 20 to lift, transfer, or weigh the lithium salt drums 13. Furthermore, the conveying mechanism 12 is equipped with a detection mechanism 124 for detecting the position of the lithium salt drums 13 within the conveying mechanism 12 to determine whether they have been delivered to the designated location. There are two lifting ports 123, spaced apart to correspond to the configuration of the lifting, transfer, and weighing mechanism 20. The detection mechanism 124 is located on either side of the conveying mechanism 12 and utilizes infrared sensors to determine whether the lithium salt drums 13 have been delivered to the designated location.

[0073] The working process of the above-mentioned conveying mechanism 12 is as follows: first, the conveying roller 122 rotates to convey the lithium salt ton barrel 13 until the detection mechanism 124 collects a signal, indicating that the lithium salt ton barrel 13 has been conveyed to the predetermined position; secondly, the conveying mechanism 12 stops the conveying action, the lifting and transferring weighing mechanism 20 lifts the lithium salt ton barrel 13 to separate from the conveying mechanism 12, or the conveying mechanism 12 does not stop, the lifting and transferring weighing mechanism 20 lifts the lithium salt ton barrel 13 to separate from the conveying mechanism 12, which is determined by the conveying speed.

[0074] like Figure 5 As shown, the lifting, transferring and weighing mechanism 20 is composed of a base frame 21 and a transfer component 22 , a weighing component 23 and a lifting component 24 directly or indirectly arranged on the base frame 21 .

[0075] The base frame 21 is formed by fixing a number of frame members. A base frame fixing seat 211 is provided on the base frame 21 for fixing the frame member 111 of the frame mechanism 11 thereto. A blocking column 212 and a blocking member 213 arranged at the top of the blocking column 212 are also provided on the base frame 21; wherein, the blocking member 213 is telescopically arranged relative to the conveying surface of the conveying mechanism 12. When it is in the retracted position, the blocking member 213 is lower than the conveying surface of the conveying mechanism 12 so as not to prevent the conveying of the lithium salt ton barrel 13 on the conveying mechanism 12; when it is in the extended position, the blocking member 213 is higher than the conveying surface of the conveying mechanism 12 to limit the lithium salt ton barrel 13 to keep it at a certain position. Therefore, the conveying mechanism 12 can be operated without stopping, and it can also ensure that the lifting of the lithium salt ton barrel 13 by the lifting, transferring and weighing mechanism 20 is not affected by the conveying.

[0076] In this embodiment, the transfer assembly 22 includes a first transfer plate 221, a first slide rail pair 222, a first transfer assembly 223, a first transfer connector 224, a second transfer plate 225, a second slide rail pair 226, a second transfer assembly 227, a second transfer connector 228 and a second transfer plate 229. The first transfer plate 221 is fixed to the base frame 21 to be carried by it. The first slide rail pair 222 and the second slide rail pair 226 are slide rail pairs to achieve sliding movement. The first slide rail pair 222 slides along the width direction (also called the x-axis direction) of the base frame 21 through two pairs of first slide rail pairs 222. The second transfer plate 225 is slidably arranged along the length direction (also known as the y-axis direction) of the base frame 21 via two pairs of second slide rails 226. The first transfer assembly 223 includes a rotation source composed of a motor or a pneumatic rotation assembly and a screw connected to the rotation source. The screw is rotatably arranged on the first transfer plate 221. The first transfer connector 224 includes a nut and a connector. The nut is threadedly engaged with the screw and connected to the second transfer plate 225 via the connector, so that the second transfer plate 225 can be driven to slide relative to the first transfer plate 221 by the rotation of the rotation source. The second transfer assembly 227 and the second transfer connector 228 have similar structures and will not be described in detail here. Accordingly, there are also two pairs of second slide rails 226 and they are arranged along the length direction of the base frame 21.

[0077] The lifting assembly 24 includes a lifting plate 241, a lifting guide 242 and a lifting unit 243. The lifting unit 243 is arranged between the second transfer plate 229 and the lifting plate 241 to lift the lifting plate 241 through the action of the lifting unit 243 to change its height position and achieve the purpose of lifting. The lifting guide 242 is arranged to pass through the corresponding through hole of the second transfer plate 229 to guide during lifting and ensure lifting in the vertical direction.

[0078] The lifting assembly 24 further includes a first bearing member 244, a second bearing member 245, and a bearing seat 246. The first bearing member 244 has a single support and is disposed along the width of the base frame 21. A second bearing member 245 disposed along the length of the base frame 21 is connected to each end of the first bearing member 244. Bearing seats 246 are provided on the outer ends of the two second bearing members 245. The first bearing member 244 is located above the lifting plate 241. When the lifting plate 241 moves upward to lift the lifting plate, the first bearing member 244 is lifted synchronously. Conversely, when the lifting plate 241 moves downward, the lifting plate 241 separates from the first bearing member 244 and no longer supports the lifting plate 241.

[0079] The weighing assembly 23 includes a weighing chassis 231 connected to the second transfer plate 229 and a weighing unit 232 disposed on the weighing chassis 231 and located below the bearing seat 246. When the lifting plate 241 rises, it moves away from the weighing chassis 231.

[0080] After the lifting assembly 24 is lifted, the lithium salt barrel 13 is lifted through the supporting seat 246 to separate from the conveying mechanism 12; when weighing is required, the lifting assembly 24 can be lowered to eliminate the lifting force of the lifting plate 241 on the first supporting member 244, and the second supporting member 245 is supported by the weighing unit 232, and the supporting seat 246 is located above the weighing unit 232 to ensure stable load-bearing during weighing.

[0081] like Figure 7 As shown, the filling mechanism 30 includes a first filling component 31 and a second filling component 32. The first filling component 31 is used to connect to an external pipeline, and the second filling component 32 is used to connect to the lithium salt barrel 13. The first filling component 31 is correspondingly connected at its lower end with the upper end of the second filling component 32.

[0082] The first filling component 31 includes a first filling pipeline 301, a first filling pipeline 302 and a first filling connector 303. The upper ends of the first filling pipeline 301 and the first filling pipeline 302 are respectively formed as connecting ports, and the lower ends of the first filling pipeline 301 and the first filling pipeline 302 are respectively connected to the first filling connector 303. The first filling component 31 also has a terminal box 304 for connecting the circuit or gas circuit of the filling mechanism 30 to it.

[0083] The first filling assembly 31 also has a first filling platform 311, a second filling platform 312 and a telescopic drive assembly 313. The first filling platform 311 is fixed to the frame top 113, and the second filling platform 312 is telescopically connected to the first filling platform 311 via the telescopic drive assembly 313. The telescopic drive assembly 313 can be optionally composed of a telescopic cylinder to drive the second filling platform 312 to telescopically move in the vertical direction relative to the first filling platform 311.

[0084] The second filling assembly 32 is used to connect to the ton barrel interface 135 of the lithium salt ton barrel 13 to fill lithium salt into the ton barrel 134. The second filling assembly 32 includes a third filling platform 321, a filling connector 322 and a third filling pipeline 323. The upper and lower ends of the third filling pipeline 323 are respectively formed as a second filling joint 329 and a third filling joint 324. The third filling platform 321 is fixed to the second filling platform 312 via the filling connector 322 to follow the second filling platform 312. The filling platform 312 is telescopic and movable, and the second filling connector 329 is arranged at the upper end of the third filling pipeline 323 and is connected to the first filling connector 303 through the flexible connecting tube 314. The flexible connecting tube 314 can be a flexible tube or a corrugated tube to achieve a flexible connection between the first filling connector 303 and the third filling pipeline 323. The third filling connector 324 is formed at the lower end of the third filling pipeline 323 for connecting with the ton barrel interface 135 of the lithium salt ton barrel 13.

[0085] In this embodiment, a ball valve 325 is also provided on the ton barrel interface 135 for controlling the on and off of the ton barrel interface 135. The second filling component 32 also includes a purge component 326 and an exhaust component 327 connected to the third filling pipeline 323, which are used to fill gas into or exhaust gas from the lithium salt ton barrel 13, such as for internal purge or gas replacement.

[0086] Two barrel opening detection components 328 , such as laser sensors, are further provided on the bottom surface of the third filling platform 321 and are separated in the radial direction.

[0087] When the lithium salt ton barrel 13 is conveyed to the vicinity of the predetermined filling position, the barrel mouth detection component 328 is first used to detect the docking of the ton barrel interface 135 and the third filling joint 324. During the process, the transfer component 22 is moved along the x / y axis direction until the ton barrel interface 135 and the third filling joint 324 are vertically docked in place; then the lifting component 24 lifts the lithium salt ton barrel 13 so that the ton barrel interface 135 and the third filling joint 324 are close to each other in the vertical direction and fully docked; finally, the ton barrel interface 135 and the third filling joint 324 are locked with each other through the docking locking component 33 to carry out the filling operation.

[0088] like Figure 10-11As shown, the docking locking assembly 33 includes a fixed rod 331, a locking drive source 332 and an L-shaped locking rod 333. The fixed rod 331 is fixedly arranged, for example, fixedly connected to the third filling pipeline 323. The L-shaped locking rod 333 is formed as a first hinge point at one end, a locking end at the other end, and a second hinge point at the middle part. The L-shaped locking rod 333 is hinged to the fixed rod 331 at its first hinge point. The two ends of the locking drive source 332 are hinged to the fixed rod 331 and the second hinge point respectively, so as to drive the L-shaped locking rod 333 to be pivotally arranged around the first hinge point through the telescopic movement of the locking drive source 332; a locking wheel 334 is hinged at the locking end of the L-shaped locking rod 333, which is used to act on the locking groove 335 formed at the upper end of the ton barrel interface 135 to make the ton barrel interface 135 contact the third filling joint 324.

[0089] In this embodiment, the locking drive source 332 is a pneumatic piston. In addition, at least two docking guides 336 are provided along the periphery of the third filling joint 324 to guide the barrel interface 135 when docking with the third filling joint 324 so that the two can dock smoothly.

[0090] like Figure 12 As shown, a ball valve switch mechanism 34 is further provided below the second filling assembly 32 for controlling the opening and closing of the tonnage barrel interface 135. The ball valve switch mechanism 34 includes a first plate 341, a third guide rail pair 342, a second plate 343, a fourth guide rail pair 344, a third plate 345, a driver 346, and an actuator 347. The first plate 341 is fixed to the third filling platform 321. The second plate 343 and the first plate 341 are slidably connected via the third guide rail pair 342, which is an annular guide rail pair. The third plate 345 and the second plate 343 are slidably connected via the fourth guide rail pair 344. The sliding movement of the second plate 343 and the third plate 345 can be driven by two screw drive mechanisms, which can be similar to those in the transfer assembly 22.

[0091] In this embodiment, the driving member 346 is fixed to the third plate 345, which is a pneumatic actuating mechanism. The action member 347 is transmission-connected to the driving member 346 to move under its drive and has a structure matching the ball valve 325 to drive the ball valve 325 to open and close.

[0092] A fully automatic filling and weighing method for lithium battery lithium salt ton barrels is implemented based on the above-mentioned device and specifically includes the following steps:

[0093] First, the optimal workflow for this method is as follows:

[0094] Set parameters → empty barrel positioning → barrel mouth docking → nitrogen replacement → valve opening to release pressure → seal test → quantitative filling → nitrogen pressure replenishment → valve closing → nitrogen purge → disconnection → heavy barrel transfer out.

[0095] That is, a laser sensor (i.e., barrel mouth detection component 328) is used to detect the position of the ton barrel interface 135; the transfer component 22 moves the lithium salt ton barrel 13 for alignment and real-time weighing; the filling mechanism 30 automatically docks with the lithium salt ton barrel 13 and performs nitrogen replacement and gas sealing performance testing before filling; the ball valve switch mechanism 34 automatically opens and closes the ball valve 325 of the lithium salt ton barrel 13; the filling mechanism 30 automatically fills according to the set weight; after the filling is completed and the ball valve 325 of the lithium salt ton barrel 13 is closed, the residual material in the pipeline of the filling mechanism 30 is purged and collected.

[0096] in,

[0097] Conveyor line (i.e., conveyor mechanism 12): An appropriate conveyor line type can be selected based on the specific structure of the packaging barrel, such as a chain line, roller conveyor, or chain plate conveyor. In this embodiment, lithium salt tote barrels 13 are used as packaging barrels, and roller conveyors are particularly suitable. The packaging barrels are transported to the packaging process via roller conveyors, where they are detected by two pairs of beamforming sensors on either side of the line, which decelerate and perform rough positioning.

[0098] The lifting and transferring weighing assembly (i.e., the combination of the transferring assembly 22, the weighing assembly 23, and the lifting assembly 24) includes a lifting cylinder, four sets of weighing sensors, a transfer X-axis, and a transfer Y-axis. After the lithium salt barrel 13 is roughly positioned, the four sets of weighing sensors installed on the lifting and transferring weighing assembly are used as support to lift the barrel away from the conveyor line. The transfer X-axis drives the barrel to move a certain distance along the conveyor line. The laser sensor light above intersects the edge of the barrel mouth twice to obtain the positions of the two points. The actual position of the barrel mouth in this direction is determined by the midpoint of the line connecting the two points. The offset perpendicular to the direction of the conveyor line is then calculated by the length of the line connecting the two points. The transfer Y-axis is controlled to move perpendicular to the conveyor line according to the offset, thereby aligning the center of the barrel mouth with the center of the filling mechanism above. After lifting, the unloading block is extended from the bottom to unload the weighing mechanism, so that the weight above no longer acts on the cylinder. This plays a key role in the weighing accuracy of the filling.

[0099] Filling mechanism (i.e., filling mechanism 30): This mechanism consists of a floating docking mechanism, a barrel mouth detection assembly, a degassing assembly, a spiral batcher, a star-shaped discharger, a welding pipeline, a pneumatic ball valve, a servo electric cylinder, and other components. After the center of the barrel mouth is aligned with the center of the filling mechanism, the servo electric cylinder extends, driving the entire filling mechanism to descend. When the docking flange surface contacts the flange of the ton barrel ball valve, the floating docking mechanism moves upward. At this time, the middle welded bellows is compressed and acts together with the three circumferential support springs to play a floating role. During the upward movement of the docking mechanism, it contacts the three circumferential top blocks, thereby driving the connecting disk of the opening and closing mechanism to move upward. When the proximity switch detects a signal, the electric cylinder stops extending downward. At this time, the three sets of locking hook assembly cylinders extend to lock the floating docking mechanism to the ton barrel flange. The end face sealing ring and floating welded bellows provided in the floating docking mechanism isolate the interior of the pipeline from the outside air.

[0100] In the present invention, empty barrels are transported by a conveyor line to the filling station. Under conditions of 1% humidity, the filling mechanism automatically connects to the barrel feed port and maintains a sealed seal to prevent contact with the outside air. The high-purity nitrogen inlet and exhaust gas exhaust valves automatically open to replace the connecting pipeline with nitrogen. The barrel feed valve is automatically opened by switching the ball valve assembly to release the pressure inside the barrel to atmospheric pressure. Filling of the empty barrel begins, with the star discharger first performing coarse filling. After reaching the set value, the coarse filling pipeline valve automatically closes, while the spiral loader performs high-precision filling. Feeding stops at the set value. During the filling process, the degassing assembly discharges the gas inside the barrel to prevent the impact of poor pressure relief during unloading on the feed. After feeding stops, the high-purity nitrogen valve and exhaust gas exhaust valve are opened to purge the barrel feed flange, while residual material is collected. Then close the exhaust gas discharge valve and replenish the pressure to 60Kpa, and automatically close the barrel feed valve by switching the ball valve assembly; disconnect the interface; weigh the heavy barrel and then transport it out of the station.

Claims

1. A fully automatic filling and testing device for lithium battery lithium salt barrels, comprising at least one device unit, characterized in that: The device unit comprises a device unit body (10), a lifting, transferring and weighing mechanism (20) and a filling mechanism (30). The lifting, transferring and weighing mechanism (20) comprises a base frame (21), a transfer assembly (22), a weighing assembly (23) and a lifting assembly (24); the base frame (21) is used to carry the transfer assembly (22), the weighing assembly (23) and the lifting assembly (24); the transfer assembly (22) is used to move in the x-axis and y-axis directions to transfer the horizontal position of the lithium salt ton barrel (13) to be filled; the lifting assembly (24) is used to lift the lithium salt ton barrel (13) to lift it, or to lower it to carry it on the weighing assembly (23) for weighing; The filling mechanism (30) includes a first filling assembly (31) and a second filling assembly (32), wherein the first filling assembly (31) is used to be connected to an external pipeline, and the second filling assembly (32) is used to be connected to a ton barrel interface (135) of a lithium salt ton barrel (13); the first filling assembly (31) includes a first filling platform (311), a second filling platform (312) and a telescopic drive assembly (313), wherein the first filling platform (311) is fixed to the frame top (113), and the second filling platform (312) is fixed to the frame top (113). The platform (312) is flexibly connected to the first filling platform (311) via a telescopic drive assembly (313); the first filling assembly (31) comprises a first filling pipeline (301), a first filling pipeline (302) and a first filling joint (303); the upper ends of the first filling pipeline (301) and the first filling pipeline (302) are respectively formed as connecting ports, and the lower ends of the first filling pipeline (301) and the first filling pipeline (302) are respectively connected to the first filling joint (303); The second filling assembly (32) includes a third filling platform (321), a filling connector (322), a third filling pipeline (323), a third filling joint (324) and a second filling joint (329). The third filling platform (321) is fixed to the second filling platform (312) via the filling connector (322) so as to move with the second filling platform (312). The second filling joint (329) is arranged at the upper end of the third filling pipeline (323) and is connected to the first filling joint (303) via the flexible connecting pipe (314). The third filling joint (324) is formed at the lower end of the third filling pipeline (323) for connecting with the ton barrel interface (135). The ton barrel interface (135) ) and the third filling joint (324) are locked to each other through a docking locking assembly (33), wherein the docking locking assembly (33) comprises a fixed rod (331), a locking drive source (332) and an L-shaped locking rod (333), wherein the fixed rod (331) is fixedly arranged, and the L-shaped locking rod (333) is hinged to the fixed rod (331) at its first hinge point, and the two ends of the locking drive source (332) are hinged to the second hinge points of the fixed rod (331) and the L-shaped locking rod (333), respectively, and a locking wheel (334) is hinged at the locking end of the L-shaped locking rod (333) for acting on the locking groove (335) of the ton barrel interface (135) to lock the ton barrel interface (135) and the third filling joint (324).

2. The fully automatic filling and detection device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: The transfer assembly (22) comprises a first transfer plate (221), a first slide rail pair (222), a first transfer assembly (223), a first transfer connector (224), a second transfer plate (225), a second slide rail pair (226), a second transfer assembly (227), a second transfer connector (228) and a second transfer plate (229); The first transfer plate (221) is arranged to slide along the x-axis via two pairs of first slide rails (222), and the second transfer plate (225) is arranged to slide along the y-axis via two pairs of second slide rails (226). The first transfer assembly (223) and the second transfer assembly (227) respectively drive the sliding of the first transfer plate (221) and the second transfer plate (225), and include a screw rod and a nut member threadedly engaged therewith.

3. The fully automatic filling and detection device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: The lifting assembly (24) includes a lifting plate (241), a lifting guide (242) and a lifting unit (243); the lifting unit (243) is arranged between the second transfer plate (229) and the lifting plate (241) to lift the lifting plate (241) through the action of the lifting unit (243); the lifting guide (242) is arranged to pass through the corresponding through hole of the second transfer plate (229) to provide guidance during lifting; The lifting assembly (24) further comprises a first bearing member (244), a second bearing member (245) and a bearing seat (246); the first bearing member (244) has a first bearing member and is arranged along the x-axis or y-axis direction; a second bearing member (245) arranged along the length direction of the base frame (21) is connected to each end of the first bearing member (244); and bearing seats (246) are respectively provided outside the ends of the two second bearing members (245); the first bearing member (244) is located above the lifting plate (241); The weighing assembly (23) comprises a weighing base frame (231) connected to the second transfer plate (229) and a weighing unit (232) arranged on the weighing base frame (231) and located below the bearing seat (246).

4. The fully automatic filling and detection device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: The first filling assembly (31) also has a terminal box (304) for connecting the electric circuit or gas circuit of the filling mechanism (30) thereto; The telescopic drive assembly (313) is composed of a telescopic cylinder, and the flexible connecting pipe (314) is a flexible pipe or a corrugated pipe to achieve a flexible connection between the first filling joint (303) and the third filling pipeline (323).

5. The fully automatic filling and testing device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: Two barrel opening detection assemblies (328) separated in the radial direction are also provided on the bottom surface of the third filling platform (321).

6. The fully automatic filling and testing device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: The third filling pipeline (323) is further provided with a ball valve (325) for controlling the opening and closing of the third filling pipeline (323), which is arranged near the lower end. The second filling assembly (32) further includes a purge assembly (32) and an exhaust assembly (327) connected to the third filling pipeline (323); The ball valve switch mechanism (34) includes a first plate (341), a third guide rail pair (342), a second plate (343), a fourth guide rail pair (344), a third plate (345), a driving member (346) and an action member (347).

7. The fully automatic filling and testing device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: The base frame (21) is formed by fixing a plurality of frame members. A base frame fixing seat (211) is provided on the base frame (21) for fixing the frame member (111) of the frame mechanism (11) thereto. The base frame (21) is also provided with a blocking column (212) and a blocking member (213) arranged at the top end of the blocking column (212); wherein the blocking member (213) is telescopically arranged relative to the conveying surface of the conveying mechanism (12); The conveying mechanism (12) comprises two conveying racks (121) arranged opposite to each other and a conveying roller (122) rotatably arranged between the two conveying racks (121), at least one conveying roller (122) being connected to a driving mechanism for rotating and conveying; a plurality of conveying rollers (122) are missing from the conveying mechanism (12) to form a lifting port (123); a detection mechanism (124) is also provided on the conveying mechanism (12) for detecting the position of the lithium salt barrel (13) on the conveying mechanism (12) to determine whether it has been conveyed to a designated position; wherein there are two lifting ports (123), and the detection mechanism (124) is located at both sides of the conveying mechanism (12) and is composed of infrared sensors.

8. The fully automatic filling and testing device for lithium battery lithium salt ton barrels according to claim 1 is characterized in that: The device unit body (10) is specifically composed of a frame mechanism (11) and a transmission mechanism (12), wherein the frame mechanism (11) is located on the transmission mechanism (12); The frame mechanism (11) includes a plurality of frame members (111) connected to each other to form a square frame. A frame top (113) is provided on the top surface of the frame mechanism (11), and a frame cavity (112) is formed inside. The frame cavity (112) has openings on two opposite sides thereof to allow ton barrels to enter and exit. A control panel (114) and a connection panel (115) are also fixed on the frame mechanism (11). The control panel (114) is electrically connected to the lifting, transferring and weighing mechanism (20) and the filling mechanism (30). The control panel (114) is also connected to a server via a network or a network cable to synchronize data.

9. A fully automatic filling and weighing method for lithium battery lithium salt ton barrels, characterized in that: The method is implemented based on the device according to any one of claims 1 to 8, comprising the following steps: The barrel mouth detection component (328) is used to detect the position of the ton barrel interface (135), the transfer component (22) moves the lithium salt ton barrel (13) for alignment and real-time weighing, the filling mechanism (30) automatically docks with the lithium salt ton barrel (13) and performs nitrogen replacement and gas sealing performance testing before filling, the ball valve switch mechanism (34) automatically opens and closes the ball valve (325) of the lithium salt ton barrel (13), the filling mechanism (30) automatically fills according to the set weight, and after the filling is completed and the ball valve (325) of the lithium salt ton barrel (13) is closed, the residual material in the pipeline of the filling mechanism (30) is purged and collected.

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