Cylindrical battery cleaning device and cleaning and drying tracing information marking method

Abstract

The invention relates to a cylindrical battery cleaning device and a cleaning and drying tracing information marking method, and belongs to the field of battery production. According to the technical scheme, the cylindrical battery cleaning device comprises a battery cleaning mechanism, a drying mechanism and a plurality of conveying mechanisms; the battery cleaning mechanism comprises a cleaning cam disc, a cleaning rotating frame, a spraying mechanism, a cleaning upper ejector rod and cleaning brushes. The multiple cleaning brushes are arranged on the periphery of the middle position of the rotating frame. The drying mechanism comprises a drying cam disc, an airflow drying device, a drying upper ejector rod and a drying rotating mechanism; the transmission mechanism comprises a transfer wheel disc and a guide plate; an inner groove is formed in the edge of the transfer wheel disc; strong magnetic mechanisms are arranged on the tops of the cleaning upper ejector rod and the drying upper ejector rod and attract a battery shell to be cleaned. The battery can be cleaned and dried in a traceable mode, and the surface of the battery shell can be effectively cleaned.

Description

Technical Field

[0001] The present invention relates to a cylindrical battery cleaning device and a cleaning, drying and traceability information marking method, belonging to the field of battery production. Background Art

[0002] Lithium-ion cylindrical batteries are currently mainly divided into different systems such as lithium iron phosphate, lithium cobaltate, lithium manganate, and ternary materials. The outer shells of cylindrical batteries are divided into nickel-plated steel shells and polymers, and batteries with different material systems have different advantages. At present, nickel-plated steel shell cylindrical lithium iron phosphate batteries are mainly used. Lithium-ion batteries feature high capacity, high output voltage, good charge and discharge cycle performance, stable output voltage, high-current discharge ability, good electrochemical stability, and safety during use, without combustion or explosion caused by improper operations such as overcharging, over-discharging, and short-circuiting. They have a wide operating temperature range and are environmentally friendly. They are widely used in energy storage cabinets, solar lamps, backup power sources, power tools, golf carts, etc.

[0003] As power batteries, lithium batteries are widely used in the field of electric vehicles. In terms of battery performance, rusting may affect the heat dissipation performance of the battery because the rust layer will to a certain extent hinder the normal dissipation of heat, resulting in too rapid temperature rise of the battery during charge and discharge. This will not only affect the charge and discharge efficiency of the battery, but may also accelerate the aging and performance decline of the internal materials of the battery in the long term, shortening the service life of the battery. Secondly, from the perspective of safety, if the rusty part further corrodes and penetrates the battery shell, it may cause the leakage of the electrolyte inside the battery. The electrolyte usually has certain corrosiveness and flammability, and once leaked, it will bring safety hazards such as corroding surrounding equipment and causing fires.

[0004] At the same time, when lithium-ion cylindrical batteries are applied in fields with extremely high safety requirements such as electric vehicles and energy storage power stations, traceability becomes particularly important. If safety accidents such as battery fires and explosions occur, through the traceability system, the specific identity information of the involved batteries can be quickly determined, including their production batches, production dates, production process details, etc. Then, it can be analyzed whether the cause of the accident is a design defect of the battery itself, a flaw in the production process, or improper operation during use, etc. This is crucial for taking reasonable countermeasures, such as promptly recalling defective batteries of the same batch and improving the production process to eliminate safety risks, etc., and can maximize the protection of the life and property safety of users. Summary of the Invention

[0005] Embodiments of the present invention provide a cylindrical battery cleaning device and a cleaning, drying and traceability information marking method, which are used to solve the problem of incomplete cleaning of cylindrical lithium-ion batteries and can trace the cleaning parameters of each battery.

[0006] To achieve the above object, the technical solution adopted by the present invention is: The cylindrical battery cleaning device of the present invention includes a battery cleaning mechanism, a drying mechanism, and a plurality of transmission mechanisms; The battery cleaning mechanism includes a cleaning cam disc, a cleaning rotating frame, a spraying mechanism, a cleaning upper ejector rod, and cleaning brushes. A plurality of cleaning brushes are arranged in a circle at the middle position of the rotating frame. A cleaning upper ejector rod is arranged below the cleaning brushes. The cleaning outer cam disc is arranged outside the cleaning upper ejector rod. An outer roller is arranged on the side of the cleaning upper ejector rod on the cleaning outer cam disc. The cleaning upper ejector rod passes through the battery case cup holder, and the lower part is the shell rotation drive. The cleaning upper ejector rod is arranged in a guide cylinder, and the guide cylinder is arranged on the cleaning rotating frame. The cleaning brush is provided with a top spray head, and the top spray head is connected to a spraying pipeline; The drying mechanism includes a drying cam disc, an air flow drying device, a drying upper ejector rod, and a drying rotating mechanism. A drying lifting outer roller is arranged on one side of the drying upper ejector rod, and the drying lifting outer roller is on the cam path of the drying cam disc. An air flow drying device is arranged above the drying upper ejector rod. The air flow drying device is in the shape of a semi-cylindrical hollow cylinder, with micro air vents on the inner surface, and the hollow structure is connected to hot air flow. The air flow drying device is arranged in a circle of the drying rotating mechanism; The transmission mechanism includes a transfer wheel disc and a guide plate. An inner groove is arranged at the edge of the transfer wheel disc. The transfer wheel disc is between the battery cleaning mechanism and the drying mechanism. The guide plate is an arc-shaped plate, perpendicular to the transfer wheel disc, and is fixedly spaced from the edge of the transfer wheel disc. The transfer wheel disc, the cleaning rotating frame, and the drying rotating mechanism are connected to a rotating power mechanism, and the rotational angular velocities of the transfer wheel disc, the cleaning rotating frame, and the drying rotating mechanism are the same; A strong magnetic mechanism is arranged at the tops of the cleaning upper ejector rod and the drying upper ejector rod to attract the battery case to be cleaned.

[0007] According to the cylindrical battery cleaning device, the battery cleaning mechanism is divided into a battery case circumferential surface cleaning mechanism and a battery case end cleaning mechanism. The battery case circumferential surface cleaning mechanism further includes two clamping cleaning arms, a chute table, inner rollers, and a cleaning inner cam disc. The clamping cleaning arms are arc-shaped, and cleaning brushes are arranged on the inner side of the arc shape. A chute inclined in the up and down direction is opened on the chute table. The rear ends of the clamping cleaning arms are hinged to the cleaning rotating frame. The hinge axes of the two clamping cleaning arms are arranged parallel in the up and down direction, and sliding columns are arranged at the rear ends of the hinge positions and embedded in the chutes. The inner rollers are on the cleaning inner cam disc. The cleaning inner cam disc and the cleaning cam disc are fixed at the same time, and the cams of the two are arranged staggeredly. The cleaning inner cam disc is surrounded by the cleaning rotating frame and is not connected.

[0008] According to the cylindrical battery cleaning device, the battery case end cleaning mechanism includes an end cleaning cover, a cleaning upper ejector rod, and an end cleaning rotating drive. Cleaning brushes and a top spray head are arranged inside the end cleaning cover. The top spray head is connected to the spraying pipeline. A top spray head facing the lower battery case is arranged directly above the ejector rod. A strong magnet is arranged at the top of the end cleaning ejector rod, and an end cleaning rotating drive is arranged at the lower part.

[0009] According to the cylindrical battery cleaning device described above, there are two groups of drying mechanisms, and a transmission mechanism is arranged between the two groups. The circumferential surface cleaning mechanism of the battery case and the end surface cleaning mechanism of the battery case are arranged in sequence front and back, and a transmission mechanism is arranged between them. A cleaning isolation plate is arranged between the circumferential surface cleaning mechanism of the battery case and the end surface cleaning mechanism of the battery case. A drying isolation plate is arranged between the end surface cleaning mechanism of the battery case and the drying mechanism. The cleaning isolation plate and the drying isolation plate leave holes at the position of the transmission mechanism.

[0010] According to the cylindrical battery cleaning device described above, it further includes a battery feeding channel and a battery discharging channel. The battery feeding channel is arranged at the feeding port of the circumferential surface cleaning mechanism of the battery case. The battery feeding channel is a channel groove. One end of the channel groove is connected to the feeding structure, and the other end leads to the position of the cleaning lower and upper ejector rods at the feeding position of the battery cleaning mechanism. The battery case falls onto the guide cylinder at the position of the upper ejector rod under the push of the rear battery case. One end of the battery discharging channel is connected to the upper ejector rod position of the drying mechanism, and the other end is connected to the battery case conveying mechanism. The battery discharging channel is a channel groove.

[0011] According to the cylindrical battery cleaning device described above, it further includes a double-layer rack. The cleaning cam disk is arranged on the lower-layer rack. A circumferential surface cleaning mechanism of the battery case, an end surface cleaning mechanism of the battery case, and a drying mechanism are installed through holes in the middle of each layer of the rack. The transmission mechanism is arranged on the upper-layer rack. The power motors of each rotating mechanism are arranged below the lower-layer rack.

[0012] According to the cylindrical battery cleaning device described above, it further includes a cleaning water tank. The cleaning water tank for cleaning the circumferential surface of the battery case is arranged on the circumferential surface cleaning mechanism of the battery case, and a pipeline is arranged at the lower part to connect to the nozzles in the inner brushes of the clamping cleaning arms. The cleaning water tank for the end surface of the battery case is arranged above the end surface cleaning mechanism of the battery case, and a pipeline is arranged to connect to the spray heads in the end surface cleaning cover. A recovery water tank is arranged below the circumferential surface cleaning mechanism of the battery case and the end surface cleaning mechanism of the battery case. The recovery water tank covers the installation positions of the circumferential surface cleaning mechanism of the battery case and the end surface cleaning mechanism of the battery case on the lower-layer rack. A filtering device is arranged at the low position of the recovery water tank. The filtering device is divided into a filter screen and a filtering strong magnet. A water pump is arranged on the pipeline at the rear end of the filtering device. The water outlet end of the water pump is connected to the circumferential surface cleaning water tank of the battery case and the end surface cleaning water tank of the battery case.

[0013] According to the cylindrical battery cleaning device described above, a torsion spring is arranged on the hinge shaft of the clamping cleaning arm. The torsion spring drives the two clamping cleaning arms to close. A pressure sensor is arranged at the cleaning brush. On the guide cylinders of the circumferential surface cleaning mechanism of the battery case and the end surface cleaning mechanism of the battery case, there are battery case cup holders at the cleaning position. A battery case cup holder is arranged at the top of the drying upper ejector rod. The battery case cup holders at the cleaning position and the drying position are internally provided with NFC reading and writing chips, and an NFC chip is arranged on the battery case.

[0014] The advantages of the present invention are as follows: The battery can be cleaned and dried in a traceable manner, and effective cleaning of the battery case surface can be achieved. The battery case of this device is provided with a traceable NFC chip structure in an independent drag cup. When entering the cleaning station and the drying station, through the readable and writable chip, cleaning data such as water pressure, brush pressure, water temperature, drying temperature, etc. are automatically collected and written into the NFC chip of the battery case, effectively solving the problems of cleaning the battery case and subsequent usage traceability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the present invention Figure 1 , Figure 2 is the side structure schematic diagram of the present invention, Figure 3 is the top view sectional structure schematic diagram of the present invention.

[0016] Figure 4 is the circumferential surface cleaning mechanism diagram of the battery case of the present invention, Figure 5 is the overall structure schematic diagram of the present invention Figure 2 , Figure 6 is Figure 5 the partial enlarged view of Figure 7 is Figure 5 the partial enlarged view of

[0017] 1. Battery feeding channel, 2. Circumferential surface cleaning mechanism of battery case, 21. Clamping cleaning arm, 22. Cleaning outer cam disc, 23. Outer roller, 24. Shell rotation drive, 25. Circumferential surface cleaning ejector rod, 26. Chute table, 27. Cleaning inner cam disc, 28. Inner roller, 29. Battery case cup holder, 3. Cleaning brush, 4. Cleaning water tank, 5. Upper layer frame, 6. Lower layer frame, 7. Filter device, 8. End surface cleaning mechanism of battery case, 81. End surface cleaning cover, 83. End surface cleaning ejector rod, 84. End surface cleaning rotation drive, 9. Battery drying mechanism, 91. Drying cam disc, 92. Airflow drying device, 93. Drying upper ejector rod, 94. Drying position battery case cup holder, 95. Drying lifting outer roller, 96. Drying rotation mechanism, 97. Battery case drying rotation drive, 10. Cleaning chamber partition board, 11. Transfer wheel disc, 12. Baking chamber partition board, 13. Guide plate, 14. Battery discharging channel, 15. Detergent feeding box, 16. Cleaning rotating frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further explains the specific content of the present invention: As Figure 1 shown, a further detailed description is made of an efficient and traceable cylindrical lithium-ion battery cleaning method It should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0019] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The cylindrical battery cleaning device of the present invention comprises a battery cleaning mechanism, a drying mechanism, and a plurality of transmission mechanisms; the battery cleaning mechanism cleans the circumferential surface and the end of the battery, the drying mechanism dries the cleaned battery, and the transmission mechanism transfers the battery from the cleaning mechanism to the drying device.

[0021] Specifically, the battery cleaning mechanism includes a cleaning cam disc 22, a cleaning rotating frame, a spraying mechanism, a cleaning upper ejector rod, and a cleaning brush. A plurality of cleaning brushes are arranged around the middle position of the rotating frame. A cleaning upper ejector rod is arranged below the cleaning brush. The cleaning outer cam disc is arranged outside the cleaning upper ejector rod. An outer roller 23 is arranged on the side surface of the cleaning upper ejector rod on the cleaning outer cam disc. The cleaning upper ejector rod passes through the battery shell cup holder 29, and the lower part is a shell rotation drive 24. The cleaning upper ejector rod 25 is arranged in a guide cylinder, and the guide cylinder is arranged on the cleaning rotating frame. The cleaning brush is provided with a top spray head, and the top spray head is connected to a spraying pipeline.

[0022] The cleaning rotating frame drives the battery to rotate at the working station to achieve continuous feeding and discharging after cleaning. The cleaning brush cleans the circumferential surface or the end surface of the battery being cleaned.

[0023] The drying mechanism includes a drying cam disc 91, an air-flow drying device, a drying upper ejector rod, and a drying rotation mechanism. The air-flow drying device and the drying upper ejector rod are arranged around the drying rotation mechanism. On one side of the drying upper ejector rod, there is a drying lifting outer roller 23, which is on the cam path of the drying cam disc 91. The air-flow drying device is arranged above the drying upper ejector rod. The air-flow drying device is in the shape of a semi-cylindrical hollow cylinder, with micro air vents on its inner surface. The hollow structure is connected to a hot air flow. At the bottom of the drying upper ejector rod, there is a battery case drying rotation drive; The transfer mechanism includes a transfer wheel disc 11 and a guide plate 13. The edge of the transfer wheel disc 11 is provided with an inner groove. The transfer wheel disc 11 is located between the battery cleaning mechanism and the drying mechanism. The guide plate 13 is an arc-shaped plate, perpendicular to the transfer wheel disc 11, and is fixedly spaced from the edge of the transfer wheel disc 11. The transfer wheel disc 11, the cleaning rotation frame, and the drying rotation mechanism are connected to a rotation power mechanism, and the transfer wheel disc 11, the cleaning rotation frame, and the drying rotation mechanism have the same angular velocity of rotation; At the tops of the cleaning upper ejector rod 25 and the drying upper ejector rod, there is a strong magnetic mechanism to hold the battery case to be cleaned.

[0024] The battery cleaning mechanism of this device is divided into a battery case circumferential surface cleaning mechanism 2 and a battery case end cleaning mechanism 8. The battery case circumferential surface cleaning mechanism 2 further includes two clamping cleaning arms 21, a chute table 26, an inner roller 23, and a cleaning inner cam disc 27. The clamping cleaning arms 21 are arc-shaped, and cleaning brushes are arranged on the inner side of the arc shape. There is a spring between the clamping cleaning arms 21 to maintain clamping. The chute table 26 is provided with a chute inclined in the up and down direction. The rear ends of the clamping cleaning arms 21 are hinged to the cleaning rotation frame. The hinge axes of the two clamping cleaning arms 21 are arranged parallel in the up and down direction, and sliding columns are arranged at the rear ends of the hinge positions and are embedded in the chute of the chute table. The chute is in a V shape. When the sliding column is at the lower part of the V shape of the chute, the two clamping arms open. When it is at the upper part of the V shape of the chute, on the contrary, they are in a clamped state. The inner roller 23 is on the cleaning inner cam disc 27, that is, when the inner roller is at the high position of the cam, the clamping arms open, and when it is at the low position, the clamping arms close to clamp the battery case.

[0025] The cleaning inner cam disc 27 and the cleaning cam disc 22 are fixed simultaneously, and the cams of the two are arranged staggeredly. The cleaning rotation frame surrounds the cleaning inner cam disc 27 and is not connected.

[0026] On the hinge axis of the clamping cleaning arm 21 of this device, there is a torsion spring, which drives the two clamping cleaning arms 21 to close. A pressure sensor is arranged at the cleaning brush. On the guide cylinders of the battery case circumferential surface cleaning mechanism 2 and the battery case end cleaning mechanism 8, there is a cleaning-position battery case cup holder 29. The top of the drying upper ejector rod is provided with a battery case cup holder 29. The cleaning-position battery case cup holder 29 and the drying-position battery case cup holder 29 are internally provided with NFC reading and writing chips, and the battery case is provided with an NFC chip.

[0027] The battery case end cleaning mechanism 8 includes an end cleaning cover 81, a cleaning upper ejector rod, and an end cleaning rotary drive. A plurality of end cleaning covers are arranged around the cleaning rotary frame. Inside the end cleaning cover 81, there are a cleaning brush and a top spray head. The top spray head is connected to the spray pipeline. There is a top spray head facing the lower battery case directly above the ejector rod 25. A strong magnet is provided at the top of the end cleaning ejector rod 25, and an end cleaning rotary drive is provided at the lower part. The end cleaning rotary drive for end cleaning is also arranged on the cleaning rotary frame, and a cleaning cam disc 22 and an outer roller structure are also provided. As the cleaning rotary frame in the battery case end cleaning mechanism 8 rotates, it drives the end cleaning cover 81, the cleaning upper ejector rod, and the end cleaning rotary drive to rotate, and the outer roller moves on the cleaning cam disc 22.

[0028] There are two drying mechanisms, and a transmission mechanism is arranged between the two mechanisms. The battery case peripheral surface cleaning mechanism 2 and the battery case end cleaning mechanism 8 are arranged in sequence front and back, and a transmission mechanism is arranged between them. A cleaning isolation plate is provided between the battery case peripheral surface cleaning mechanism 2 and the battery case end cleaning mechanism 8. A drying isolation plate is provided between the battery case end cleaning mechanism 8 and the drying mechanism. The cleaning isolation plate and the drying isolation plate leave holes at the position of the transmission mechanism.

[0029] It also includes a battery feeding channel 1 and a battery discharging channel 14. The battery feeding channel 1 is arranged at the feeding port of the battery case peripheral surface cleaning mechanism 2. The battery feeding channel 1 is a channel groove. One end of the channel groove is connected to the feeding structure, and the other end leads to the position of the lower ejector rod at the feeding position of the battery cleaning mechanism. The battery case falls onto the guide cylinder at the position of the upper ejector rod under the push of the rear battery case. One end of the battery discharging channel 14 is connected to the position of the upper ejector rod of the drying mechanism, and the other end is connected to the battery case conveying mechanism. The battery discharging channel 14 is a channel groove.

[0030] The present invention is provided with a double-layer frame. The cleaning cam disc 22 is arranged on the lower-layer frame 6. The middle of each layer of the frame is provided with openings for installing the battery case peripheral surface cleaning mechanism 2, the battery case end cleaning mechanism 8, and the drying mechanism. The said transmission mechanism is arranged on the upper-layer frame, and the power motors of each rotating mechanism are arranged below the lower-layer frame 6.

[0031] In order to meet the storage of cleaning water, the device is provided with a cleaning water tank 4. The cleaning water tank 4 for cleaning the peripheral surface of the battery case is arranged on the battery case peripheral surface cleaning mechanism 2, and a pipeline is provided at the lower part to connect to the middle spray heads of the inner brushes of the clamping cleaning arms 21. The cleaning water tank 4 for the battery case end is arranged above the battery case end cleaning mechanism 8, and a pipeline is provided to connect the spray head inside the end cleaning cover 81. A recovery water tank is provided below the battery case circumferential surface cleaning mechanism 2 and the battery case end cleaning mechanism 8. The recovery water tank covers the installation positions of the battery case circumferential surface cleaning mechanism 2 and the battery case end cleaning mechanism 8 on the lower layer frame 6. A filtering device 7 is arranged at the low position of the recovery water tank. The filtering device 7 is divided into a filter screen and a filtering strong magnet. A water pump is arranged on the pipeline at the rear end of the filtering device 7. The water outlet end of the water pump is connected to the battery case circumferential surface cleaning water tank 4 and the battery case end cleaning water tank 4.

[0032] The rotating mechanism in the present invention improves the cleaning production efficiency, and the cam mechanism realizes the automatic clamping of the battery by the brush. The present invention can meet the production efficiency of more than 300 ppm at the same time. It realizes the parameter collection and recording of the battery case cleaning process. The working process of this device: The cylindrical battery is pushed forward from back to front at the battery feeding channel position, and falls into the battery cleaning mechanism at the battery case cup holder position. The battery cleaning mechanism is an overall tower rotating mechanism, and successively passes through the battery case circumferential surface cleaning mechanism, the battery case end cleaning mechanism and the battery drying mechanism to realize the circumferential surface cleaning of the battery case, the end cleaning of the battery, the primary drying of the battery and the secondary drying of the battery.

[0033] When the battery case of this device passes through the cleaning mechanism and the secondary drying mechanism, the battery case cup holder will read the NFC chip in the battery case, record its serial number, and store the cleaning process parameters such as water pressure, brush pressure, water temperature, and the drying temperature in the drying process together with the serial number.

[0034] A PH tester is arranged at the bottom of the cleaning water tank. At the same time, the filtering device is connected to the cleaning agent feeding box 16, and the automatic feeding function of the cleaning agent is realized according to the feedback of the PH tester 17.

[0035] The end face of the battery case circumferential surface cleaning mechanism 2 is provided with a clamping cleaning arm 21, which is internally provided with a spray head connected to the cleaning water tank. The inner roller on the chute table rises with the protrusion on the cleaning inner cam disc. The clamping and loosening of the clamping cleaning arm are controlled. When the outer roller on one side of the circumferential surface cleaning ejector rod 25 moves at the convex position of the cleaning outer cam disc, the battery case is lifted. The top of the battery case triggers the spray head. At the same time, the chute table 26 drives the sliding columns of the two clamping cleaning arms to move away. The front ends of the clamping cleaning arms are clamped, and the cleaning brush pressure is recorded through a pressure sensor. The circumferential surface cleaning ejector rod 25 is connected to the shell rotation drive 24, so that the battery case rotates with the circumferential surface cleaning ejector rod. After the battery rotates around the shell cleaning mechanism 2 for one week, the outer roller descends at the concave position of the cleaning outer cam disc, the circumferential surface cleaning ejector rod 25 descends, the inner roller on the chute table descends with the inner concave of the cleaning inner cam disc, the chute table 26 drives the sliding columns of the two clamping cleaning arms to approach, the front ends of the clamping cleaning arms are separated, and the battery exits the clamping cleaning arm 21.

[0036] At the position of the conveying mechanism, the battery case is transferred into the inner groove of the transfer wheel disc through the transfer mechanism and enters the battery case end cleaning mechanism along with the guide plate.

[0037] The end cleaning ejector rod is controlled by the outer roller at the bottom. When the battery case rotates around the head cleaning mechanism 8, the battery case is lifted at the convex position of the cleaning outer cam disc. The top of the battery case triggers the cleaning brush in the end cleaning cover. The end cleaning cover is connected to the end cleaning rotation drive to keep the battery case rotating. The outer roller descends at the concave position of the cleaning outer cam disc, and the end cleaning ejector rod drives the battery case to descend, and the battery case exits the head cleaning mechanism 8.

[0038] At the position of the conveying mechanism, the battery case is transferred into the inner groove of the transfer wheel disc through the transfer mechanism and enters the battery case primary drying mechanism along with the guide plate.

[0039] During the operation of the battery case primary drying mechanism, the battery enters the drying position battery case cup holder of the drying mechanism from the transfer wheel disc. The drying upper ejector rod is controlled by the outer drying lifting roller at the bottom and rises with the convex on the drying cam disc to push the battery case into the air flow drying device. The drying upper ejector rod is connected to the battery case drying rotation drive to keep the battery rotating and drying. After the battery case rotates one week, the drying upper ejector rod descends, and the battery exits the battery drying mechanism. At the position of the conveying mechanism, the battery case is transferred into the inner groove of the transfer wheel disc through the transfer mechanism and enters the battery case secondary drying mechanism along with the guide plate.

[0040] After two drying processes, it is conveyed to the battery discharge channel through the transfer mechanism to complete the cleaning and drying process.

[0041] During the cleaning and drying process, the battery case cup holder records the water pressure, brush pressure, water temperature and drying temperature, and stores them together with the battery case information in the NFC chip in the battery case for future reference, which is convenient for tracing the cleaning process parameters.

[0042] The battery case cleaning structure is provided with a water return function to reduce water consumption. A filtering device is provided below the cleaning. The filter screen and strong magnet in the filtering device are used to filter impurities and metal impurities in the cleaning water, and then re-enter their respective cleaning water tanks through the water return pipe. The drying mechanism is provided with a fresh air system, and air knives are provided at the battery cleaning mechanism and the drying mechanism to block the escape of water vapor into the drying mechanism and ensure a dry drying environment.

[0043] The present invention realizes efficient and traceable cleaning of cylindrical lithium-ion batteries. Through the cup holder with an embedded chip, the cleaning parameters can be bound to the battery one by one and collected, ensuring efficient automatic production and accurately collecting cleaning parameters.

[0044] The above is only a preferred processing example of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cylindrical battery cleaning device, characterized in that: It includes a battery cleaning mechanism, a drying mechanism and a plurality of transmission mechanisms; The battery cleaning mechanism comprises a cleaning cam disc (22), a cleaning rotating frame, a spray mechanism, a cleaning upper push rod and a cleaning brush. A plurality of cleaning brushes are arranged around the middle of the rotating frame. A cleaning upper push rod is arranged at the lower part of the cleaning brush. The cleaning outer cam disc is arranged at the outer side of the cleaning upper push rod. An outer roller (23) is arranged on the side of the cleaning upper push rod on the cleaning outer cam disc. The cleaning upper push rod passes through the battery shell cup holder (29). The lower part is a shell rotation drive (24). The cleaning upper push rod (25) is inserted into a guide cylinder. The guide cylinder is arranged on the cleaning rotating frame. The cleaning brush is provided with a top spray head. The top spray head is connected to a spray pipe. The drying mechanism comprises a drying cam plate (91), an airflow drying device, a drying upper push rod and a drying rotating mechanism, a drying lifting outer roller (23) is provided on one side of the drying upper push rod, the drying lifting outer roller (23) is located on the cam path of the drying cam plate (91), an airflow drying device is provided above the drying upper push rod, the airflow drying device is in the shape of a semi-cylindrical hollow cylinder, a tiny air outlet is provided on the inner surface, the hollow structure is connected to the hot air flow, and the airflow drying device is arranged around the drying rotating mechanism; The transmission mechanism comprises a transfer wheel (11) and a guide plate (13); an inner groove is provided on the edge of the transfer wheel (11); the transfer wheel (11) is located between the battery cleaning mechanism and the drying mechanism; the guide plate (13) is an arc-shaped plate, perpendicular to the transfer wheel (11), and spaced a fixed distance from the edge of the transfer wheel (11); the transfer wheel (11), the cleaning rotating frame, and the drying rotating mechanism are connected to the rotating power mechanism; and the transfer wheel (11), the cleaning rotating frame, and the drying rotating mechanism have the same rotational angular velocity; The tops of the cleaning upper push rod (25) and the drying upper push rod are provided with strong magnetic mechanisms for attracting the battery shell to be cleaned.

2. The cylindrical battery cleaning device according to claim 1, characterized in that: The battery cleaning mechanism is divided into a battery shell peripheral surface cleaning mechanism (2) and a battery shell end cleaning mechanism (8). The battery shell peripheral surface cleaning mechanism (2) further comprises two embracing cleaning arms (21), a slide groove platform (26), an inner roller (23) and a cleaning inner cam disc (27). The embracing cleaning arm (21) is in an arc shape, a cleaning brush is arranged on the inner side of the arc shape, a slide groove inclined in the up-down direction is opened on the slide groove platform (26), the rear end of the embracing cleaning arm (21) is hingedly arranged on the cleaning rotating frame, the hinge axes of the two embracing cleaning arms (21) are arranged parallel in the up-down direction, a sliding column is arranged at the rear end of the hinge position and is embedded in the slide groove, the inner roller (23) is on the cleaning inner cam disc (27), the cleaning inner cam disc (27) and the cleaning cam disc (22) are fixed at the same time, and the cams of the two are arranged in a staggered manner, and the cleaning rotating frame surrounds the cleaning inner cam disc (27) and is not connected.

3. The cylindrical battery cleaning device according to claim 2, characterized in that: The battery shell end cleaning mechanism (8) comprises an end cleaning cover (81), a cleaning top rod and an end cleaning rotary drive. A cleaning brush and a top spray head are arranged inside the end cleaning cover (81). The top spray head is connected to a spray pipe. A top spray head is arranged directly above the top rod (25) and faces the battery shell at the bottom. A strong magnet is arranged at the top of the end cleaning top rod (25), and an end cleaning rotary drive is arranged at the bottom.

4. The cylindrical battery cleaning device according to claim 2, characterized in that: The drying mechanism comprises two groups, a transmission mechanism is arranged between the two groups of mechanisms, the battery shell peripheral surface cleaning mechanism (2) and the battery shell end cleaning mechanism (8) are arranged in a front-to-back order, a transmission mechanism is arranged between the two, a cleaning isolation plate is arranged between the battery shell peripheral surface cleaning mechanism (2) and the battery shell end cleaning mechanism (8), a drying isolation plate is arranged between the battery shell end cleaning mechanism (8) and the drying mechanism, and a hole is left between the cleaning isolation plate and the drying isolation plate at the position of the transmission mechanism.

5. The cylindrical battery cleaning device according to claim 2, characterized in that: The battery also includes a battery feeding channel (1) and a battery discharging channel (14). The battery feeding channel (1) is arranged at the feeding port of the battery shell peripheral surface cleaning mechanism (2). The battery feeding channel (1) is a channel groove. One end of the channel groove is connected to the feeding structure, and the other end leads to the upper ejector position of the battery cleaning mechanism at the feeding position. The battery shell falls onto the guide cylinder at the upper ejector position under the push of the rear battery shell. One end of the battery discharging channel (14) is connected to the upper ejector position of the drying mechanism, and the other end is connected to the battery shell conveying mechanism. The battery discharging channel (14) is a channel groove.

6. The cylindrical battery cleaning device according to claim 5, characterized in that: It also includes a double-layer frame, the cleaning cam plate (22) is arranged on the lower frame (6), the middle opening of each layer of the frame is used to install a battery shell peripheral surface cleaning mechanism (2), a battery shell end cleaning mechanism (8) and a drying mechanism, the transmission mechanism is arranged on the upper frame, and the power motors of each rotating mechanism are arranged below the lower frame (6).

7. The cylindrical battery cleaning device according to claim 5, characterized in that: It also includes a cleaning water tank (4), which is used for cleaning the battery shell peripheral surface and is arranged on the battery shell peripheral surface cleaning mechanism (2). A pipeline is arranged at the bottom of the cleaning tank (4) to communicate with the nozzle of the brush inside the embracing cleaning arm (21). A cleaning water tank (4) for the battery shell end is arranged above the battery shell end cleaning mechanism (8), and a pipeline is arranged to connect the spray head in the end cleaning cover (81). A recovery water tank is arranged below the battery shell peripheral surface cleaning mechanism (2) and the battery shell end cleaning mechanism (8). The recovery water tank covers the lower part of the lower rack (6) below the installation position of the battery shell peripheral surface cleaning mechanism (2) and the battery shell end cleaning mechanism (8). A filtering device (7) is arranged at the lower position of the recovery water tank. The filtering device (7) is divided into a filter screen and a filtering magnet. A water pump is arranged in the rear end pipeline of the filtering device (7). The water outlet of the water pump connects the battery shell peripheral surface cleaning water tank (4) and the battery shell end cleaning water tank (4).

8. The cylindrical battery cleaning device according to claim 5, characterized in that: A torsion spring is provided on the hinge shaft of the embracing cleaning arm (21), and the torsion spring drives the two embracing cleaning arms (21) to close. A pressure sensor is provided at the cleaning brush, and a guide cylinder of the battery shell peripheral surface cleaning mechanism (2) and the battery shell end cleaning mechanism (8) is provided. The battery shell cup holder (29) is arranged on the cleaning position battery shell cup holder (29) and the top of the drying upper push rod. The cleaning position battery shell cup holder (29) and the drying position battery shell cup holder (29) are built with NFC reading and writing chips, and the battery shell is provided with an NFC chip.

9. A method for marking cleaning and drying traceability information of a cylindrical battery cleaning device according to claim 8, characterized in that: The following steps are included: The cylindrical battery is pushed forward from the back to the front at the battery feeding channel position, falls at the battery shell cup holder position and enters the cup holder of the battery cleaning mechanism, the cleaning rotating frame in the battery shell peripheral surface cleaning mechanism 2 rotates, and the peripheral surface cleaning push rod 25 pushes up the battery shell when the outer roller on one side moves at the raised position of the cleaning outer cam disk, and the top of the battery shell triggers the spray head. At the same time, the slide table 26 drives the sliding columns of the two embracing cleaning arms to move away, and the front ends of the embracing cleaning arms are embracing, and the cleaning brush pressure is recorded by the pressure sensor. The peripheral surface cleaning push rod 25 is connected to the shell rotation drive 24, so that the battery shell keeps rotating with the peripheral surface cleaning push rod. After the battery rotates around the shell cleaning mechanism 2 for one circle, the outer roller descends in the lower concave position of the cleaning outer cam disk, the peripheral surface cleaning push rod 25 descends, and the inner roller on the slide table descends along with the inner concave position of the cleaning inner cam disk, and the slide table 26 drives the sliding columns of the two embracing cleaning arms to approach, and the front ends of the embracing cleaning arms are separated, and the battery exits the embracing cleaning arm 21; At the conveying mechanism position, the battery shell is transferred to the inner groove of the transfer wheel by the transfer mechanism, and enters the battery shell end cleaning mechanism along with the guide plate; The end cleaning push rod is controlled by the bottom outer roller. When the battery shell rotates around the head cleaning mechanism 8, the battery shell is lifted up at the convex position of the cleaning outer cam disk. The top of the battery shell triggers the cleaning brush in the end cleaning cover. The end cleaning cover is connected to the end cleaning rotation drive to keep the battery shell rotating. The outer roller descends at the concave position of the cleaning outer cam disk, and the end cleaning push rod drives the battery shell to descend, and the battery shell exits the head cleaning mechanism. 4) At the conveying mechanism position, the battery shell is transferred to the inner groove of the transfer wheel through the transfer mechanism, and enters the battery shell primary drying mechanism along with the guide plate. During the operation of the battery shell primary drying mechanism, the battery enters the drying position battery shell cup holder of the drying mechanism from the transfer wheel. The drying upper push rod is controlled by the outer roller of the bottom drying to lift the battery shell and push it into the airflow drying device along with the protrusion on the drying cam plate. The drying upper push rod is connected to the battery shell drying rotation drive to keep the battery rotating and drying. After the battery shell rotates one circle, the drying upper push rod descends and the battery exits the battery drying mechanism. At the conveying mechanism position, the battery shell is transferred to the inner groove of the transfer wheel through the transfer mechanism, and enters the battery shell secondary drying mechanism along with the guide plate; 5) After completing the two drying steps, the battery is transported to the battery discharge channel through the transfer mechanism to complete the cleaning and drying process; 6) During the cleaning and drying process, the battery shell cup holder records the water pressure, brush pressure, water temperature and drying temperature, and stores them together with the battery shell information in the NFC chip in the battery shell for future reference, so as to facilitate the traceability of the cleaning process parameters.

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