Round battery appearance detection line

Abstract

The application relates to a round battery appearance detection line, which comprises a feeding mechanism, an appearance detection mechanism, an NG discharge mechanism, a sorting mechanism, a paper box feeding mechanism, a chain jig line mechanism, a boxing mechanism, a cover closing mechanism and a stacking mechanism. A raw material supply area filled with a battery frame full of round batteries is arranged at the input port of the feeding mechanism. A paper box conveying line is arranged at the output end of the paper box feeding mechanism. The end of the paper box conveying line sequentially passes through the boxing mechanism to load the round batteries, the cover closing mechanism to close the box cover and the stacking mechanism. The paper box full of round batteries is carried to the work station by the stacking mechanism and is stacked. The feeding mechanism, the appearance detection mechanism, the NG discharge mechanism, the sorting mechanism, the paper box feeding mechanism, the chain jig line mechanism, the boxing mechanism, the cover closing mechanism and the stacking mechanism automatically realize the feeding, appearance detection, discharge of unqualified products and subsequent boxing and stacking of the round batteries, manpower cost is saved, and the detection efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of battery testing, and in particular to a circular battery appearance testing line. Background Technology

[0002] During the production of cylindrical batteries, some appearance defects are unavoidable. These defects can affect the use of the batteries and pose safety hazards. Therefore, appearance quality inspection of cylindrical batteries is an essential and crucial process in their production.

[0003] However, the existing testing equipment on the market mainly relies on manual loading and unloading, which involves secondary contact with the round cells. Moreover, during loading, the round cells are brought onto the testing line one by one, resulting in slow loading efficiency. Summary of the Invention

[0004] This invention provides a circular battery appearance inspection line that can automatically realize the automatic feeding, appearance inspection, discharge of defective products, and packing and stacking of qualified products of circular batteries, greatly increasing the inspection efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A circular battery appearance inspection line, comprising:

[0007] The feeding mechanism has a raw material supply area at its input port, which is filled with a battery frame containing round batteries. This area is used to extract and transport the round batteries from the battery frame within the raw material supply area.

[0008] The appearance inspection mechanism is used to inspect the appearance of the round batteries output from the above-mentioned feeding mechanism;

[0009] The NG discharge mechanism is used to discharge the unqualified round batteries detected by the above-mentioned appearance inspection mechanism and output qualified round batteries.

[0010] The material handling mechanism is used to sort and adjust the pitch of qualified round cells output from the above-mentioned NG discharge mechanism;

[0011] The cardboard box feeding mechanism is used to break up stacks of cardboard boxes for individual box transport and to open the box lids;

[0012] The chain fixture line mechanism is used to transfer the round batteries discharged from the above-mentioned material handling mechanism to the carton in the boxing position via the fixture;

[0013] A boxing mechanism is used to load the round batteries fed by the chain fixture line mechanism into the cardboard box.

[0014] A lid-closing mechanism for closing the lid of a cardboard box filled with round batteries;

[0015] The palletizing mechanism is used to transport the closed cardboard boxes to the palletizing station;

[0016] A round battery conveyor line is used to transport the jig loaded with round batteries at the output end of the chain jig line mechanism to the input end of the boxing mechanism.

[0017] The paper box conveyor line starts at the output end of the paper box feeding mechanism and ends sequentially through the boxing mechanism and the lid closing mechanism and is located at the palletizing mechanism.

[0018] The aforementioned feeding mechanism includes a first frame and a tilting component, a gripping component, and a feeding conveyor line disposed on the first frame, wherein the input end of the feeding conveyor line is located between the tilting component and the gripping component;

[0019] The aforementioned flipping assembly includes a flipping sub-assembly and a pressure plate sub-assembly. The flipping sub-assembly includes a flipping frame with a bearing cavity and a first drive assembly that drives the flipping frame to flip toward the aforementioned feeding conveyor line. The pressure plate assembly includes a second drive assembly and a blocking plate disposed at the drive end of the second drive assembly. The second drive assembly is disposed on the upper surface of the flipping frame, and the drive end faces the upper end of the flipping frame.

[0020] The gripping assembly includes a third driving assembly and a gripping plate. One end of the gripping plate is connected to the driving end of the third driving assembly, and the other end of the gripping plate is connected to a first suction element.

[0021] A baffle is provided on the side of the input end of the above-mentioned feeding conveyor line near the third drive component. The baffle is provided with a blocking hole for the gripping plate to pass through. The height of the blocking hole is smaller than the diameter of the round battery.

[0022] The aforementioned flipping frame has a horizontal state and a vertical state. When the flipping frame is in the horizontal state, the battery frame is allowed to enter. Before the flipping frame flips, the aforementioned baffle plate, driven by the aforementioned second drive assembly, abuts against the round batteries inside the battery frame and leaves a gripping opening for a row of round batteries to be removed. After the flipping frame flips from the horizontal state, it is in the vertical state. The aforementioned gripping opening is located at the bottom of the flipping frame and faces the aforementioned feeding conveyor line.

[0023] The third drive assembly drives the gripping plate through the blocking hole and into the gripping opening when the flipping frame is in a vertical state. The first suction member picks up the round battery, and then the gripping plate moves away from the gripping opening and unloads the round battery from the first suction member to the input end of the feeding conveyor line through the blocking hole.

[0024] Preferably, the feeding mechanism further includes a feeding conveyor line, a first conveying component for transporting the battery frames in the raw material supply area to the input end of the feeding conveyor line, and a second conveying component for removing the battery frames that have been fed at the output end of the feeding conveyor line. The first conveying component is located at the input end of the feeding conveyor line, the second conveying component is located at the output end of the feeding conveyor line, and the flipping frame is located above the feeding conveyor line.

[0025] The clamping ends of the first and second transport components are provided with clamping blocks, and the inner sidewalls of the clamping blocks are inclined.

[0026] Preferably, the first drive assembly includes a first linear drive device and a crank. A first support plate is provided on the first frame. The first linear drive device is located below the first support plate. The drive end of the first linear drive device is connected to one end of the crank, and the other end passes upward through the first support plate and is rotatably connected to the lower end of the tilting frame located above the first support plate near the feeding conveyor line. A first rotating shaft is provided on the first support plate, and the connection between the crank and the tilting frame is rotatably connected to the first rotating shaft. A support rod is also provided above the first support plate to support the tilting frame in a horizontal state.

[0027] The third drive assembly includes a third linear drive device and a first connecting plate. The drive end of the third linear drive device is connected to a second connecting plate. A plurality of buffer springs are connected between the first connecting plate and the second connecting plate. The gripping plate is connected to the first connecting plate, and the first connecting plate slides on the first frame.

[0028] Preferably, the above-mentioned feeding conveyor line includes a third frame and a first conveyor belt assembly, wherein the first conveyor belt assembly is disposed on the third frame;

[0029] A first limiting plate is horizontally arranged on the first frame. The first limiting plate is located above the first conveyor belt in the first conveyor belt assembly, and the distance between the first limiting plate and the first conveyor belt in the first conveyor belt assembly is between the diameter of one round battery and the diameter of two round batteries.

[0030] The first limiting plate is provided with a mounting hole, and a correction plate is rotatably mounted on the mounting hole. When the correction plate rotates along the transport direction of the first conveyor belt assembly and comes into contact with the wall of the mounting hole, the distance between the lowest point of the correction plate and the first conveyor belt in the first conveyor belt assembly can accommodate a round battery.

[0031] Preferably, the appearance inspection mechanism includes a fourth frame and a first input component, a first transfer component, a first barcode scanner, a circumference detection device, an edge detection device, a first output component, an inspection conveyor line, a first detection device for detecting gaskets at the positive and negative terminals of the round battery, and a second detection device for detecting whether there are defects at the positive and negative terminals of the round battery, all mounted on the fourth frame. The input end of the first input component is connected to the output end of the feeding mechanism. The first input component, the first transfer component, the first output component, and the inspection conveyor line are arranged sequentially along the round battery transport direction to transport the round batteries. The first barcode scanner, the circumference detection device, and the edge detection device are located above the first transfer component and are arranged sequentially along the round battery transport direction. The first detection device and the second detection device are located on both sides of the inspection conveyor line and are arranged sequentially along the round battery transport direction.

[0032] Preferably, the first transfer assembly includes a first transfer tray group, a second transfer tray group, a third transfer tray group, and a fourth transfer tray group arranged sequentially along the transport direction of the round battery;

[0033] The first transfer tray group, the second transfer tray group, the third transfer tray group and the fourth transfer tray group all include two transfer trays that are spaced apart and rotatably mounted on the fourth frame. The outer walls of the two transfer trays are provided with a plurality of uniformly circumferentially distributed grooves, and the corresponding grooves on the two transfer trays constitute a first transfer groove. A second suction member for suctioning round batteries is provided in the first transfer groove.

[0034] The distance between the two transfer disks in the first transfer disk group is less than the distance between the two transfer disks in the second transfer disk group. The ends of the two transfer disks in the first transfer disk group that are closer to the second transfer disk group are located between the two transfer disks in the second transfer disk group. The outer walls of the transfer disks in the first transfer disk group and the outer walls of the transfer disks in the second transfer disk group form a first rotation region. The distance between the two transfer disks in the third transfer disk group is less than the distance between the two transfer disks in the second transfer disk group and the distance between the two transfer disks in the fourth transfer disk group. The two ends of the two transfer disks in the third transfer disk group are located between the two transfer disks in the second transfer disk group and between the two transfer disks in the fourth transfer disk group, respectively. The outer walls of the transfer disks in the second transfer disk group and the outer walls of the transfer disks in the third transfer disk group form a second rotation region. The outer walls of the transfer disks in the third transfer disk group and the outer walls of the transfer disks in the fourth transfer disk group form a third rotation region.

[0035] It also includes a first lifting member, a second lifting member, and a third lifting member. The first lifting member is located between the ends of the two transfer trays in the first transfer tray group near the ends of the second transfer tray group, and is located at the entrance of the first rotation area. The upper end of the first lifting member protrudes outside the transfer tray. The second lifting member is located between the ends of the two transfer trays in the second transfer tray group near the ends of the third transfer tray group, and is located at the entrance of the second rotation area. The upper end of the second lifting member protrudes outside the transfer tray. The third lifting member is located between the ends of the two transfer trays in the third transfer tray group near the ends of the fourth transfer tray group, and is located at the entrance of the third rotation area. The upper end of the third lifting member protrudes outside the transfer tray.

[0036] Preferably, the NG discharge mechanism includes a fifth frame and a first NG conveying line, a first pushing device, and a first storage component disposed on the fifth frame; the input end of the first NG conveying line is connected to the output end of the appearance inspection mechanism.

[0037] The first NG conveying line is provided with a first push port and a first discharge port. The first push device and the first storage component are respectively located on both sides of the first NG conveying line. The output end of the first push device is located at the first push port, and the input end of the first storage component is located at the first discharge port. The first push device sends the defective round batteries at the first push port to the input end of the first storage component through the first discharge port.

[0038] Preferably, the NG discharge mechanism further includes a second input component, a second transfer component, a second barcode scanner, a second output component, a second NG conveyor line, a third pusher, and a third storage component, which are sequentially arranged on the fifth frame. The second input component is connected to the output end of the first NG conveyor line, and the second input component, the second transfer component, and the second output component are sequentially connected.

[0039] The second scanning device is located above the second transfer assembly and is used to scan the round batteries being transported on the second transfer assembly.

[0040] The second NG conveying line is provided with a third push port and a third discharge port. The third push device and the third storage component are respectively located on both sides of the second NG conveying line. The output end of the third push device is located at the third push port, and the input end of the third storage component is located at the third discharge port. The third push device sends the defective round batteries at the third push port to the input end of the third storage component through the third discharge port.

[0041] Preferably, the material handling mechanism includes a sixth frame and a material handling conveyor line, a pitch control assembly, and a transport assembly disposed on the sixth frame;

[0042] The end of the aforementioned material handling conveyor line is equipped with a stop block;

[0043] The aforementioned pitch-changing assembly includes a first lifting device, a pressure plate, a second lifting device, a primary pitch-changing plate, and a secondary pitch-changing plate. The pressure plate is connected to the lifting end of the first lifting device and is located above the end of the material handling conveyor line. The output end of the second lifting device is vertically upward and connected to the lower end face of the horizontally placed primary pitch-changing plate. The primary pitch-changing plate is located between the two conveyor belts in the material handling conveyor line and below the conveyor belts. There are two secondary pitch-changing plates, which are spaced apart and located at the input end of the chain fixture line mechanism.

[0044] The aforementioned transport assembly includes a conveyor belt assembly, a slider, and a slide rail. The slide rail is mounted on the sixth frame and located below the material handling conveyor line. The slider is slidably mounted on the slide rail. The starting end of the slide rail is located below the material handling conveyor line, and the ending end of the slide rail is located at the input end of the chain fixture line mechanism. The second lifting device is mounted on the slider. A connecting plate is provided on the slider. The connecting plate is connected to the conveyor belt in the conveyor belt assembly. The starting end of the conveyor belt assembly is located below the material handling conveyor line, and the ending end of the conveyor belt assembly is located at the input end of the chain fixture line mechanism.

[0045] The aforementioned stop blocks cause the round batteries at the exit of the aforementioned material handling conveyor line to form a row of round battery packs, and the aforementioned pressure plate descends to a certain height. The aforementioned second lifting device raises the aforementioned primary pitch plate, causing the round batteries to detach from the aforementioned material handling conveyor line and cooperate with the aforementioned pressure plate to complete a primary pitch change.

[0046] The conveyor belt assembly transports the primary pitch plate to above the secondary pitch plate. The second lifting device then lowers, positioning the primary pitch plate below the secondary pitch plate. The round battery is placed in the second placement slots opened on the two secondary pitch plates, thus completing the secondary pitch change.

[0047] Preferably, the packaging mechanism includes a seventh frame and a round battery transport assembly and a round battery guide assembly disposed on the seventh frame;

[0048] The aforementioned circular battery transport assembly includes a first moving component and a transport member disposed at the output end of the first moving component. A transport frame is provided on the lower end face of the transport member, and a fourth suction member is provided on the lower end face of the transport member.

[0049] The aforementioned circular battery guide assembly includes a second movable assembly and a guide member disposed at the lower end of the second movable assembly. The guide member has an L-shaped structure, and multiple guide grooves are provided on the vertical surface of the guide member. Multiple guide holes are provided on the horizontal surface of the guide member. Multiple elastic guide strips are provided at the lower end of the guide holes, and the multiple elastic guide strips form a tapered guide clamp.

[0050] The first moving component controls the transporter to transport the round battery between the round battery conveyor line and the guide, and the second moving component is used to transport the round battery on the guide into the cardboard grid.

[0051] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0052] 1. This invention, by setting up a feeding mechanism, an appearance inspection mechanism, an NG discharge mechanism, a material sorting mechanism, a carton feeding mechanism, a chain fixture line mechanism, a boxing mechanism, a lid closing mechanism, and a palletizing mechanism, automatically realizes the feeding, appearance inspection, discharge of unqualified round batteries, sorting and loading of qualified round batteries, and finally the sealing and palletizing of cartons filled with round batteries. The entire process requires almost no human intervention, saving labor costs and avoiding the situation where round batteries are touched twice, which would affect the appearance inspection of round batteries. The inspection efficiency is high.

[0053] 2. By cooperating with the flipping sub-assembly and the pressure plate sub-assembly, after the flipping frame flips, the battery frame only has a gripping opening for taking out a row of round batteries. Then, by setting the gripping component and the blocking hole at the input end of the feeding conveyor, a row of round batteries can be fed at a time. Compared with manual feeding one by one, it directly saves a lot of feeding time and has higher feeding efficiency, thereby saving the detection time of the entire detection line. Attached Figure Description

[0054] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0055] Figure 1 This is a schematic diagram of the overall device according to an embodiment of the present invention;

[0056] Figure 2 This is a schematic diagram of the overall feeding mechanism in an embodiment of the present invention;

[0057] Figure 3 This is a top view of the feeding mechanism in an embodiment of the present invention;

[0058] Figure 4This is a schematic diagram of the overall flipping component in an embodiment of the present invention;

[0059] Figure 5 This is a side view of the flipping component in an embodiment of the present invention;

[0060] Figure 6 This is a schematic diagram of the grasping component in an embodiment of the present invention;

[0061] Figure 7 This is a schematic diagram of the feeding conveyor line in an embodiment of the present invention;

[0062] Figure 8 Examples of embodiments of the present invention Figure 7 Enlarged diagram of A in the middle;

[0063] Figure 9 Examples of embodiments of the present invention Figure 7 Enlarged diagram of B in the middle;

[0064] Figure 10 This is a schematic diagram of the appearance inspection mechanism and NG discharge mechanism in an embodiment of the present invention.

[0065] Figure 11 This is a schematic diagram of the appearance inspection mechanism in an embodiment of the present invention;

[0066] Figure 12 This is a schematic diagram of the first input component, first transfer component, first output component, first scanning component, circumference detection device, and edge detection device in an embodiment of the present invention;

[0067] Figure 13 This is a schematic diagram of the first transfer component in an embodiment of the present invention;

[0068] Figure 14 This is a cross-sectional view of the first transfer component in an embodiment of the present invention;

[0069] Figure 15 This is a schematic diagram of the NG discharge mechanism in an embodiment of the present invention.

[0070] Figure 16 This is a schematic diagram of the first push component and the first storage component in an embodiment of the present invention;

[0071] Figure 17 This is a schematic diagram of the first storage component in an embodiment of the present invention;

[0072] Figure 18 This is a schematic diagram of the second input component, second transfer component, second output component, and second NG conveyor line in an embodiment of the present invention;

[0073] Figure 19 This is a schematic diagram of the overall material handling mechanism in an embodiment of the present invention;

[0074] Figure 20 This is a schematic diagram of the material handling mechanism in an embodiment of the present invention;

[0075] Figure 21 This is a schematic diagram of the pitch control assembly and transport assembly in an embodiment of the present invention;

[0076] Figure 22 This is a schematic diagram of the overall packaging assembly in an embodiment of the present invention;

[0077] Figure 23 This is a schematic diagram of the overall structure of the circular battery transport assembly according to an embodiment of the present invention;

[0078] Figure 24 This is a schematic diagram of the overall circular battery guide assembly in an embodiment of the present invention. Figure 1 ;

[0079] Figure 25 This is a schematic diagram of the overall circular battery guide assembly in an embodiment of the present invention. Figure 2 ;

[0080] Figure 26 This is a schematic diagram of the guide component in an embodiment of the present invention.

[0081] Explanation of reference numerals in the attached figures:

[0082] 1. Feeding mechanism; 101. First frame; 102. Tilting assembly; 1021. First linear drive device; 1022. Crank; 1023. Tilting frame; 1024. Second drive device; 1025. Baffle plate; 1026. Gripping opening; 103. Gripping assembly; 1031. Third linear drive device; 1032. Buffer spring; 1033. Gripping plate; 1034. First suction element; 104. Feeding conveyor line; 1041. Third frame; 1042. First conveyor belt assembly; 1043. First limit plate; 1044. Correction plate; 1045. Blocking hole; 105. First handling assembly; 106. Feeding conveyor line; 107. Second handling assembly; 108. Raw material supply area;

[0083] 2. Appearance inspection mechanism; 201. Fourth frame; 202. First input component; 203. First transfer component; 2031. First transfer tray group; 20311. Transfer tray; 20312. First transfer trough; 20313. Second suction component; 2032. Second transfer tray group; 2033. Third transfer tray group; 2034. Fourth transfer tray group; 2035. First lifting component; 2036. Second lifting component; 2037. Third lifting component; 2038. First rotation area; 2039. Second rotation area; 2040. Third rotation area; 204. First barcode scanning device; 205. Circumference detection device; 206. Edge detection device; 207. First output component; 208. Inspection conveyor line; 209. First inspection device; 210. Second inspection device;

[0084] 3. NG discharge mechanism; 301. Fifth frame; 302. First NG conveyor line; 303. First pushing device; 304. First storage component; 3041. Sorting box; 3042. Fourth linear drive device; 3043. Push plate; 3044. Sorting track; 3045. Channel; 305. Second input component; 306. Second transfer component; 307. Second output component; 308. Second NG conveyor line; 309. Third pushing device;

[0085] 4. Material handling mechanism; 401. Material handling conveyor line; 4011. Stop block; 402. Pitch changer assembly; 4021. First lifting device; 4022. Pressure plate; 4023. Second lifting device; 4024. Primary pitch changer plate; 4025. Secondary pitch changer plate; 403. Transport assembly; 4031. Conveyor belt assembly; 4032. Slider; 4033. Slide rail; 4034. Connecting plate; 404. Sixth frame;

[0086] 5. Cardboard box feeding mechanism; 6. Chain fixture line mechanism;

[0087] 7. Packing mechanism; 701. Seventh support; 702. Round battery handling assembly; 7021. Fifth linear drive device; 7022. First horizontal moving plate; 7023. Third lifting assembly; 70231. Fourth lifting assembly; 70232. Horizontal mounting plate; 70233. Eighth linear drive device; 70234. Fifth lifting assembly; 70235. Vertical mounting plate; 70236. Handling component; 70237. Handling Frame; 703, Circular battery guide assembly; 7031, Sixth linear drive device; 7032, Second horizontal moving plate; 7033, Sixth lifting assembly; 7034, Lifting plate; 7035, Pressure rod; 7036, Seventh linear drive device; 7037, Third horizontal moving plate; 7038, Seventh lifting assembly; 7039, Guide component; 70391, Guide groove; 70392, Guide hole; 7040, Conical guide clamp;

[0088] 8. Desiccant feeding mechanism; 9. Blister sheet feeding mechanism; 10. Lid closing mechanism; 11. Palletizing mechanism; 12. Round battery conveyor line; 13. Paper box conveyor line. Detailed Implementation

[0089] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0090] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0091] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0092] This invention provides a circular battery appearance inspection line, including a feeding mechanism 1, an appearance inspection mechanism 2, an NG discharge mechanism 3, a material sorting mechanism 4, a carton feeding mechanism 5, a chain fixture line mechanism 6, a boxing mechanism 7, a lid closing mechanism 10, and a stacking mechanism 11. Specifically, the feeding mechanism 1 has a raw material supply area 108 at its input port, where battery frames filled with circular batteries are stacked. The feeding mechanism 1 extracts the circular batteries from the battery frames in the raw material supply area 108 and transports them to the appearance inspection mechanism 2 for appearance inspection. The appearance inspection mechanism 2 performs appearance inspection on the circular batteries, including scanning barcodes and circumferential inspection of the batteries. The process includes edge inspection, detection of the number of gaskets at the positive and negative terminals, and inspection of the positive and negative terminals. After inspection, the round batteries are transported to the NG discharge mechanism 3. Round batteries that fail the appearance inspection by the appearance inspection mechanism 2 are discharged from the NG discharge mechanism 3, while the remaining qualified round batteries enter the material handling mechanism 4. To facilitate the placement of round batteries in the fixtures within the subsequent chain fixture line mechanism 6, the spacing between the round batteries entering the chain fixture line mechanism 6 needs to be adjusted to match the distance of the round battery slots within the fixture. This allows for easy placement of the round batteries into the fixture within the chain fixture line mechanism 6. The material handling mechanism 4, located before the chain fixture line mechanism 6, can handle the round batteries during transport. The cells are sorted and the spacing between adjacent round cells is adjusted to match the distance between adjacent mounting slots within the fixture. They are then transported to the chain fixture line mechanism 6, where the round cells are loaded into the fixture. A round cell conveyor line 12 is provided between the output end of the chain fixture line mechanism 6 and the input end of the boxing mechanism 7. The fixture filled with round cells is transported to the boxing mechanism 7 via the round cell conveyor line 12. Correspondingly, the cardboard box feeding mechanism 5 is used to split the cardboard box stack into individual cardboard boxes for transport. A cardboard box conveyor line 13 is provided at the output end of the cardboard box feeding mechanism 5. The end of the cardboard box conveyor line 13 passes sequentially through the boxing mechanism 7 to load the round cells and the lid closing mechanism 10 to close the lid. The boxes filled with round batteries are transported to the stacking station and stacked by the stacking mechanism 11. In summary, the feeding mechanism 1, appearance inspection mechanism 2, NG discharge mechanism 3, material sorting mechanism 4, box feeding mechanism 5, chain fixture line mechanism 6, boxing mechanism 7, lid closing mechanism 10 and stacking mechanism 11 automatically realize the feeding, appearance inspection, discharge of defective products and subsequent automatic boxing and stacking of round batteries. This eliminates the need for more manpower, saves labor costs, and almost eliminates human contact throughout the process, avoiding secondary contact of round batteries that could affect the appearance inspection of round batteries, resulting in high inspection efficiency.

[0093] In this embodiment, there are two of each of the feeding mechanism 1, appearance inspection mechanism 2, NG discharge mechanism 3, and material handling mechanism 4. One feeding mechanism 1, one appearance inspection mechanism 2, one NG discharge mechanism 3, and one material handling mechanism 4 form an inspection line. The chain fixture line mechanism 6 has two input ends, and the output ends of the two material handling mechanisms 4 are respectively connected to the two input ends of the chain fixture line mechanism 6, thereby accelerating the efficiency of appearance inspection of round batteries.

[0094] Furthermore, existing methods for feeding round batteries involve individual feeding and are manual, resulting in low feeding efficiency. Therefore, the feeding mechanism 1 in this embodiment includes a first frame 101, a flipping component 102, a gripping component 103, and a feeding conveyor line 104. The input end of the feeding conveyor line 104 is located between the flipping component 102 and the gripping component 103. The flipping component 102 includes a flipping sub-component and a pressure plate sub-component. The flipping sub-component includes a first drive component and a flipping frame 1023. The first drive component is mounted on the first frame 101. The flipping frame 1023 has a bearing cavity that can hold battery frames. The first drive component enables the flipping frame 1023 to have two states: a horizontal state and a vertical state. In the framed state, the flipping frame 1023 is in a horizontal position. Both sides and the top of the flipping frame 1023 have openings communicating with the carrying cavity, allowing the battery frame to enter from the side of the flipping frame 1023. The pressure plate assembly includes a second drive assembly and a blocking plate 1025 mounted on the drive end of the second drive assembly. The second drive assembly is located on the upper surface of the flipping frame 1023, with the drive end facing the upper end of the flipping frame 1023. When the carrying space within the flipping frame 1023 contains a battery frame, the second drive assembly drives the blocking plate 1025 to move until it abuts against the round batteries inside the battery frame. After abutment, a gripping opening 1026 is left for removing a row of round batteries. Furthermore, during the flipping process of the flipping frame 1023, the blocking plate 1025... 5. When continuously contacting the inner round battery surface of the battery frame, the battery frame is stably fixed within the flipping frame 1023, preventing the round batteries inside the battery frame from falling out. Under the drive of the first drive component, it can stably rotate 90 degrees to a vertical position with the flipping frame 1023. In the vertical position, the gripping opening 1026 is located at the bottom of the flipping frame 1023 and faces the feeding conveyor line 104. Specifically, the gripping component 103 includes a third drive component and a gripping plate 1033. One end of the gripping plate 1033 is connected to the drive end of the third drive component, and the other end of the gripping plate 1033 is connected to a first suction element 1034. The first suction element can be a magnet. Correspondingly, the feeding conveyor line 104... A baffle is provided on the side of the input end of 04 near the second linear drive device. The baffle has a blocking hole 1045 for the gripping plate 1033 to pass through. The height of the blocking hole 1045 is smaller than the diameter of the round battery. In use, the flipping frame 1023 is in a vertical state. The third drive assembly drives the gripping plate 1033 to pass through the blocking hole 1045 and extend into the gripping opening 1026. The round battery is picked up by the first suction member 1034. Then, when the gripping plate 1033 moves away from the gripping opening 1026, since the diameter of the round battery is larger than the height of the blocking hole 1045, the round battery is unloaded from the first suction member 1034 to the input end of the feeding conveyor line 104 when the gripping plate 1033 passes through the blocking hole 1045, thus completing the feeding.

[0095] In summary, the entire loading process is as follows: First, the battery frame filled with round batteries is transported into the flipping frame 1023. Then, before flipping, the second drive assembly moves the baffle plate 1025 toward the battery frame, so that the baffle plate 1025 abuts against the round batteries in the battery frame, leaving a gripping opening 1026 for a row of round batteries to be removed. Then, the first drive assembly drives the flipping frame 1023 to flip. During the flipping process, the second drive assembly continues to drive the baffle plate 1025 to continue to squeeze the round batteries until the flipping frame 1023 flips 90 degrees, with the gripping opening 1026 at the bottom and opposite the blocking hole 1045. In response, the third drive component will drive the gripping plate 1033 to pass through the blocking hole 1045 and extend into the gripping opening 1026. The first suction member 1034 will pick up the round battery. Then, when the gripping plate 1033 moves away from the gripping opening 1026, the round battery will be unloaded from the suction member to the input end of the feeding conveyor line 104 through the blocking hole 1045. The feeding conveyor line 104 will transport the battery to the appearance inspection mechanism 2. The entire feeding process is automated and can feed a row of round batteries at a time. Compared with feeding round batteries one by one, it directly saves feeding time and has higher feeding efficiency.

[0096] Specifically, the feeding mechanism 1 also includes a first conveying component 105, a feeding conveyor line 106, and a second conveying component 107 mounted on the first frame 101. The feeding conveyor line 106 includes a first roller line, a second roller line, and a third roller line arranged sequentially and parallel to the transport direction of the feeding conveyor line 104. The first conveying component 105 is located at the input end of the first roller line and transports the battery frame from the raw material supply area 108 to the first roller line, and then transports it to the second roller line. The tilting frame 1023 is located on the second roller line and is in a horizontal state. The highest point of the roller in the second roller line is located at the bearing... Inside the carrying cavity, the battery frame can be transported from the side opening of the mounting frame to the carrying cavity through the rollers on the second roller line. Then, the battery frame is fixed by the baffle plate 1025, and the round battery is loaded with the cooperation of the second drive assembly flipping and gripping assembly 103. After the round battery is transported in the battery frame, the flipping frame 1023 is rotated to a horizontal state, and then transported by the second roller line to the third roller line, and then carried out by the second transport assembly 107. Specifically, the first transport assembly 105 and the second transport assembly 107 have the same structure, and both can adopt existing six-degree-of-freedom transport devices, as long as they can meet the requirements of the battery frame being able to move up and down, left and right, and forward and backward.

[0097] Preferably, the clamping ends of the existing first conveying component 105 and the existing second conveying component 107 both have a plurality of clamping blocks for clamping the transported items. However, the inner sidewalls of the existing clamping blocks are all vertical sidewalls, which requires the position of the clamping blocks to be particularly precise. If there is a deviation, it is difficult to complete the clamping. In this embodiment, the inner sidewalls of the clamping blocks are inclined. Even if the position of the clamping blocks is slightly deviated, it can be adjusted by tilting the sidewalls. Such high positional accuracy is not required, making it more convenient to use.

[0098] Specifically, the first drive assembly includes a first linear drive device 1021 and a crank 1022. The first linear drive device 1021 can be a cylinder or a linear motor. A first support plate is provided on the first frame 101. The first linear drive device 1021 is located below the first support plate. The drive end of the first linear drive device 1021 is connected to one end of the crank 1022, and the other end passes upward through the mounting hole provided on the first support plate and is rotatably connected to the lower end of the tilting frame 1023 located above the first support plate near the end of the feeding conveyor line 104. Two first mounting plates are provided on both sides of the tilting frame 1023. The first mounting plates are mounted on the first support plate. A first rotating shaft is provided between the first mounting plates, and the first drive shaft passes through the end of the tilting frame 1023 near the feeding conveyor line 104. Thus, the first linear drive device 1021 can drive the tilting frame 1023 to switch between horizontal and vertical states by pushing the crank 1022, which rotates around the first rotating shaft. Correspondingly, a support rod is provided above the first support plate to support the tilting frame 1023 in the horizontal state. Specifically, the second drive component is a second linear drive device 1024, which can be a cylinder or a linear motor, and is mounted on the upper surface of the tilting frame 1023 through the second frame.

[0099] Specifically, the third drive assembly includes a third linear drive device 1031 and a first connecting plate 4034. The third linear drive device 1031 can be a cylinder or a linear motor. The drive end of the third linear drive device 1031 is connected to the second connecting plate 4034. Multiple buffer springs 1032 are connected between the first connecting plate 4034 and the second connecting plate 4034. The gripping plate 1033 is connected to the first connecting plate 4034. The first connecting plate 4034 slides on the first frame 101. Thus, when the third linear drive device 1031 drives the gripping plate 1033 to grip the round battery, the gripping plate 1033's suction component comes into contact with the round battery. Due to the action of the buffer springs 1032, part of the collision force is buffered, thereby reducing damage to the round battery. Moreover, the first suction component 1034 can be a magnet.

[0100] Specifically, the feeding conveyor line 104 includes a third frame 1041 and a first conveyor belt assembly 1042, with the first conveyor belt assembly 1042 mounted on the third frame 1041. The starting end of the first conveyor belt assembly 1042 is located between the gripping assembly 103 and the flipping sub-assembly, and the end of the second conveyor belt assembly is connected to the input end of the appearance inspection mechanism 2. To ensure that the fed round batteries can be transported side-by-side in an orderly manner without piling up on the second conveyor belt assembly, a first limiting plate 1043 is horizontally arranged above the first conveyor belt inside the first conveyor belt assembly 1042. The first limiting plate 1043 is mounted on the first frame 1041 by vertical support plates on both sides. On the frame 101, the distance between the first limiting plate 1043 and the first conveyor belt in the first conveyor belt assembly 1042 is between the diameter of one round battery and the diameter of two round batteries, thus forming a limiting transport space to prevent the round batteries from stacking during transport and to facilitate the appearance inspection of the round batteries one by one. Preferably, the distance between the first limiting plate 1043 and the first conveyor belt in the first conveyor belt assembly 1042 is between the diameter of one round battery and 1.5 times the diameter of one round battery. Because the height of the limiting transport space is greater than that of one round battery, some round batteries may be squeezed up during transport. Therefore, the round battery will not contact the first conveyor belt, which would hinder subsequent appearance inspection. To address this, a mounting hole is provided on the first limiting plate 1043, and a rotating shaft is mounted on the side wall of the mounting hole. A correction plate 1044 is fixedly connected to the rotating shaft. The correction plate 1044 can rotate along the conveying direction of the first conveyor belt assembly 1042 and will contact the side wall of the mounting hole. When not in use, the correction plate 1044 is in a vertical position. In this vertical position, the distance between the lower end face of the correction plate 1044 and the first conveyor belt is less than the diameter of a round battery. During the transport of the round battery, the round battery will force the correction plate 1044 to rotate, thus correcting the battery's position. 1044 will rotate until it contacts the side wall of the mounting hole. At this time, the distance between the lower end face of the correction plate 1044 and the first conveyor belt is equal to the diameter of a round battery. This will force the round battery that was squeezed up and not in contact with the conveying surface of the first conveyor belt to descend and make it in contact with the conveying surface of the first conveyor belt. The round battery in contact with the conveying surface of the first conveyor belt will be transported normally. Preferably, the first limiting plate 1043 is provided with multiple correction plates 1044 along the transport direction of the first conveyor belt, which can ensure that the round battery transported by the first conveyor belt assembly 1042 fits the transport surface, which is convenient for the subsequent appearance inspection mechanism 2 to perform individual loading and individual inspection of the round battery.

[0101] The round batteries transported by the first conveyor belt assembly 1042 are delivered to the appearance inspection mechanism 2. Specifically, the appearance inspection mechanism 2 includes a fourth frame 201 and a first input assembly 202, a first transfer assembly 203, a first barcode scanner 204, a circumference detection device 205, an edge detection device 206, a first output assembly 207, an inspection conveyor line 208, a first detection device 209 for detecting the gaskets at the positive and negative terminals of the round batteries, and a second detection device 210 for detecting whether there are defects at the positive and negative terminals of the round batteries. The first input assembly 202 is connected to the output end of the first conveyor belt assembly 1042, and the output end of the first output assembly 207 is connected to the input end of the first transfer assembly 203. The first barcode scanner 204, the circumference detection device 205, and the edge detection device 206 are located above the first transfer assembly 203 and are arranged sequentially along the transport direction of the round batteries. Thus, when the first transfer assembly 203 transfers the round batteries, it performs barcode scanning and circumference detection on the round batteries. The round batteries are inspected for their edges and corners, and then transported to the inspection conveyor line 208 via the first output component 207. The first inspection device 209 and the second inspection device 210 are arranged on both sides of the inspection conveyor line 208 and sequentially along the transport direction of the round batteries. The round batteries are further inspected on the inspection conveyor line 208, and the positive and negative terminals and the gaskets at the positive and negative terminals are inspected. After inspection, the round batteries are transported to the NG discharge mechanism 3 via the inspection conveyor line 208. During the transport process, the round batteries are sequentially inspected by the first barcode scanning device 204, the circumference inspection device 205, the edge inspection device 206, the first inspection device 209, and the second inspection device 210 to fully inspect the appearance of the round batteries, so as to distinguish between qualified and unqualified products. Moreover, the whole process is automated, saving time and labor. Furthermore, the first barcode scanning device 204, the circumference inspection device 205, the edge inspection device 206, the first inspection device 209, and the second inspection device 210 are all existing inspection devices. The inspection conveyor line 208 can be a roller line.

[0102] Specifically, the first input component 202 includes a first frame with openings at both ends and inclined. The opening of the first frame near the end of the first conveyor belt assembly 1042 is higher than the opening near the first transfer assembly 203, thus it is inclined. The round batteries coming out of the first conveyor belt assembly 1042 enter the first frame and are then transported to the input end of the first transfer assembly 203 under the action of gravity. Conversely, the first output component 207 includes a second frame with openings at both ends and inclined. The opening of the second frame near the first transfer assembly 203 is higher than the opening near the input end of the detection conveyor line 208, thus it is inclined. The round batteries coming out of the first transfer assembly 203 enter the second frame and are then transported to the input end of the detection conveyor line 208 under the action of gravity.

[0103] Specifically, the first transfer assembly 203 includes a first transfer disk group 2031, a second transfer disk group 2032, a third transfer disk group 2033, and a fourth transfer disk group 2034 arranged sequentially along the transport direction of the round battery. Each of the first, second, third, and fourth transfer disk groups includes two spaced-apart transfer disks 20311 rotatably mounted on the fourth frame 201. The outer walls of both transfer disks 20311 are provided with multiple uniformly circumferentially distributed grooves. Corresponding grooves on the two transfer disks 20311 form a first transfer groove 20312. A second suction element 20313 for absorbing the round battery is provided within the first transfer groove 20312. The second suction element 20313 can be a magnet. Thus, by rotating the transfer disks 20311, the round battery enters the first transfer groove 20312, is attracted by the second suction element, and is then stably transported.

[0104] Correspondingly, the distance between the two transfer disks 20311 in the first transfer disk group 2031 is smaller than the distance between the two transfer disks 20311 in the second transfer disk group 2032. The ends of the two transfer disks 20311 in the first transfer disk group 2031 near the second transfer disk group 2032 are located between the two transfer disks 20311 in the second transfer disk group 2032, and the outer walls of the transfer disks 20311 in the first transfer disk group 2031 and the outer walls of the transfer disks 20311 in the second transfer disk group 2032 form a first rotation region 2038; the distance between the two transfer disks 20311 in the third transfer disk group 2033 is smaller than the distance between the two transfer disks 20311 in the second transfer disk group 2032. The distance between the transfer disks 20311 and the distance between the two transfer disks 20311 in the fourth transfer disk group 2034; the two ends of the two transfer disks 20311 in the third transfer disk group 2033 are respectively located between the two transfer disks 20311 in the second transfer disk group 2032 and between the two transfer disks 20311 in the fourth transfer disk group 2034; the outer walls of the transfer disks 20311 in the second transfer disk group 2032 and the outer walls of the transfer disks 20311 in the third transfer disk group 2033 form the second rotation region 2039; the outer walls of the transfer disks 20311 in the third transfer disk group 2033 and the outer walls of the transfer disks 20311 in the fourth transfer disk group 2034. A third rotation zone 2040 is formed; it also includes a first lifting member 2035, a second lifting member 2036, and a third lifting member 2037. The first lifting member 2035 is located between the ends of two transfer disks 20311 within the first transfer disk group 2031 near the second transfer disk group 2032, and is located at the entrance of the first rotation zone 2038. The upper end of the first lifting member 2035 protrudes from the outer wall of the two transfer disks 20311 within the first transfer disk group 2031. The second lifting member 2036 is located between the ends of two transfer disks 20311 within the second transfer disk group 2032 near the third transfer disk group 2033, and is located at the entrance of the second rotation zone 2039. The upper end of the lifting member 2036 protrudes from the outer wall of the two transfer disks 20311 within the second transfer disk group 2032. The third lifting member 2037 is located between the ends of the two transfer disks 20311 within the third transfer disk group 2033, near the end of the third transfer disk group 2033, and is located at the entrance of the third rotation area 2040. The upper end of the third lifting member 2037 protrudes from the outer wall of the two transfer disks 20311 within the third transfer disk group 2033. Correspondingly, the first scanning device 204 is located above the first rotation area 2038, the circumference detection device 205 is located above the second rotation area 2039, and the edge detection device 206 is located above the third rotation area 2040. The aforementioned rotation area is the recessed area at the junction of the two transfer disks 20311, which rotates due to the outer walls of the two transfer disks 20311. The entrance of the aforementioned rotation area is located at the entrance of the third rotation area 2040. Figure 1The center is located on the left side of the rotation region.

[0105] The transportation process of the first transfer component 203 is as follows: The round batteries enter the first frame and move to the opening of the first frame near the first transfer disk group 2031. They are then transported one by one through the first transfer groove 20312 on the transfer disk 20311 within the first transfer disk group 2031. When transported to the entrance of the first rotation area 2038, the round batteries in the first transfer groove 20312 are lifted by the first lifting member 2035, thus detaching from the adsorption of the second suction member 20313. They then enter the first rotation area 2038, driven by the outer walls of the transfer disks 20311 in the first transfer disk group 2031 and the transfer disks 20311 in the second transfer disk group 2032. During its rotation, the battery is scanned by the first scanning device 204. When the battery is transferred from the first transfer groove 20312 on the transfer disk 20311 in the second transfer disk group 2032 to the first rotation area 2038, the second suction member 20313 will adsorb the round battery into the first transfer groove 20312. Then, the battery is transported by the first transfer groove 20312 on the transfer disk 20311 in the second transfer disk group 2032 to the entrance of the second rotation area 2039. The round battery in the first transfer groove 20312 is then lifted by the second lifting member 2036, thus detaching from the adsorption of the second suction member 20313 and leaving the first transfer groove 20312 before entering the second rotation area 2039. Within the second rotation area 2039, the battery rotates and is detected by the circumference detection device 205 during its rotation, measuring its circumference. Then, when the battery is transferred from the first transfer groove 20312 on the transfer disk 20311 in the third transfer disk group 2033 to the second rotation area 2039, the second suction member 20313 within the first transfer groove 20312 will attract the round battery. The battery is then transferred by the transfer disk 20311 within the third transfer disk group 2033 until it reaches the entrance of the third rotation area 2040. There, the round battery in the first transfer groove 20312 is lifted by the third lifting member 2037, thus detaching from the suction of the second suction member 20313. It detaches from the first transfer groove 20312 and enters the third rotation area 2040, where it rotates. During rotation, it is detected by the edge detection device 206, which measures its edge. Then, it is transported to the second frame by the first transfer groove 20312 on the transfer disk 20311 in the fourth transfer disk group 2034. During installation, the bottom side wall of the second frame near the opening of the transfer disk 20311 is close to the rotating disk. The outer side wall of the round battery that moves to the opening of the second frame will contact the bottom side wall of the opening of the second frame, thereby peeling the round battery out of the first transfer groove 20312 and then moving to the detection conveyor line 208.

[0106] Preferably, a magnetic disk is installed on the central shaft connecting the two transfer disks 20311 in the first transfer disk group 2031, the second transfer disk group 2032, the third transfer disk group 2033, and the fourth transfer disk group 2034. This magnetizes the steel transfer disks 20311 to a certain extent, allowing the round battery to be placed more stably in the first transfer groove 20312. Furthermore, when the round battery rotates in the rotation area, the disk has a certain attraction force on the round battery, which makes the round battery rotate stably and avoids the situation where the round battery moves to the outside of the transfer disk 20311, resulting in the failure of round battery detection.

[0107] The round batteries conveyed from the inspection conveyor line 208 enter the NG discharge mechanism 3 for separation of qualified and unqualified products. Specifically, the NG discharge mechanism 3 includes a fifth frame 301 and a first NG conveyor line 302, a first pushing device 303, and a first storage component 304 mounted on the fifth frame 301. The input end of the first NG conveyor line 302 is connected to the output end of the inspection conveyor line 208. Correspondingly, the first NG conveyor line 302 is provided with a first pushing port, a first discharge port, a second pushing port, and a second discharge port. The first pushing device 303 and the first storage component 304 are located on both sides of the first NG conveyor line 302. The output end of the first pushing device 303 is located at the first pushing port, and the input end of the first storage component 304 is located at the first discharge port. The first pushing device 303 can send unqualified round batteries from the first pushing port to the input end of the first storage component 304 through the first discharge port for further processing. Meanwhile, the qualified products continue to be transported along the first NG conveyor line 302 to the sorting mechanism 4 for round battery sorting.

[0108] In this embodiment, the first pushing device 303 can be an air outlet device, which can be a spray gun connected to an air pipe. The air outlet of the air outlet device faces the first pushing port. The air outlet device pushes the defective round batteries through the first outlet to the inlet of the first storage component 304. The first storage component 304 can be a battery frame. Of course, in order to sort out the defective round batteries, in this embodiment, the first storage component 304 includes a sorting box 3041 and a pushing component. The sorting box 3041 is provided with a sorting track 3044, which can be S-shaped. The inlet of the sorting box 3041 is provided with a channel 3045 perpendicular to the transport direction of the first NG conveyor line 302. The feeding component is located at the inlet of the sorting box 3041. The pushing component includes a fourth linear drive device 3042, which can be a linear motor or a cylinder. The first pushing device 303 pushes the defective round batteries into the channel 3045 before the inlet of the sorting box 3041. Then, the fourth linear drive device 3042 pushes the round batteries at the inlet of the sorting box 3041 into the sorting track 3044 inside the sorting box 3041 via the push plate 3043. The output end of the first pushing device 303 passes through the first pushing port and pushes the defective round batteries on the first NG conveyor line 302 through the first outlet to the first storage component 304 for storage. Specifically, the second pushing device has the same structure as the first pushing device 303. The second storage component can have the same structure as the first storage component 304, or it can be other storage components that can cooperate with the second pushing device to push out the defective round batteries.

[0109] Specifically, the NG discharge mechanism 3 also includes a second input component 305, a second transfer component 306, a second barcode scanner, a second output component 307, and a second NG conveyor line 308, which are sequentially mounted on the fifth frame 301. The second input component 305 is connected to the output end of the first NG conveyor line 302. The second input component 305, the second transfer component 306, and the second output component 307 are sequentially connected. The structure of the second input component 305 is the same as that of the first input component 202, and the structure of the second output component 307 is the same as that of the first output component 207. The second transfer component 306 includes... The system includes a fifth transfer tray group and a sixth transfer tray group arranged sequentially along the transport direction of the round batteries. Each of the fifth and sixth transfer tray groups includes two transfer trays spaced apart and rotatably mounted on a fifth frame 301. The outer walls of both transfer trays are provided with multiple evenly distributed circumferential grooves, and the corresponding grooves on the two transfer trays form a second transfer groove. A third suction element for picking up round batteries is provided within the second transfer groove. The distance between the two transfer trays in the fifth transfer tray group is smaller than the distance between the two transfer trays in the sixth transfer tray group. The ends of the two transfer trays in the fifth transfer tray group closest to the sixth transfer tray group are located within the sixth transfer tray group. The fourth rotation area is formed between two transfer trays within the fifth transfer tray group and the outer walls of the transfer trays within the sixth transfer tray group. It also includes a fourth lifting member, located between the ends of the two transfer trays within the fifth transfer tray group near the sixth transfer tray group, and at the entrance of the fourth rotation area. The upper end of the fourth lifting member protrudes beyond the transfer trays. A second scanning device is located above the fourth rotation area. The specific transportation method is as follows: the round batteries enter the second input component 305 and move to the entrance of the fifth transfer tray group, then are transported one by one through the second transfer groove on the transfer tray within the fifth transfer tray group. When the battery is transported to the entrance of the fourth rotation area, the round battery in the second transfer groove is lifted by the fourth lifting member, thereby detaching from the adsorption of the third adsorption member, and then enters the fourth rotation area. Driven by the outer walls of the transfer plates in the fifth and sixth transfer plate groups, it rotates. During the rotation, it is scanned by the second scanning device. When the second transfer groove on the transfer plate in the sixth transfer plate group is transferred to the fourth rotation area, the third adsorption member will adsorb the round battery into the second transfer groove, and then continue to transport it to the second output component 307, and then transport it to the second NG conveyor line 308.

[0110] The NG discharge mechanism 3 also includes a third pushing device 309 and a third storage component. The second NG conveyor line 308 is provided with a third pushing port and a third discharge port. The third pushing device 309 and the third storage component are located on both sides of the second NG conveyor line 308, respectively. The output end of the third pushing device 309 is located at the third pushing port, and the input end of the third storage component is located at the third discharge port. When the round batteries conveyed by the first NG conveyor line 302 are scanned by the second barcode scanner, it is found that some unqualified round batteries have not been discharged. When the round batteries enter the third pushing port of the second NG conveyor line 308, the unqualified round batteries will be pushed by the third pushing device 309 and transported through the third discharge port to the inlet of the third storage component, thereby removing the unqualified round batteries and ensuring that the round batteries that subsequently enter the carton are qualified round batteries. Specifically, the structure of the third pushing device 309 is the same as that of the first pushing device 303, and the structure of the third storage component is the same as that of the first storage component 304.

[0111] Specifically, the material handling mechanism 4 includes a sixth frame 404 and a material handling conveyor line 401, a pitch-changing assembly 402, and a transport assembly 403 mounted on the sixth frame 404. A stop block 4011 is provided at the end of the material handling conveyor line 401, causing the round batteries moving to the end of the material handling conveyor line 401 to form a row of round battery packs. The pitch-changing assembly 402 includes a first lifting device 4021, a pressure plate 4022, a second lifting device 4023, a primary pitch-changing plate 4024, and a secondary pitch-changing plate 4025. The pressure plate 4022 is connected to the lifting end of the first lifting device 4021 and is located on the material handling conveyor line 401. Above the end of the first lifting device 4021, the first lifting device 4021 can move the pressure plate 4022 closer to or further away from the material handling conveyor line 401. The second lifting device 4023 is arranged upwards, and the primary pitch plate 4024 is installed at the lifting end of the second lifting device 4023. In the initial state, the primary pitch plate 4024 is located between the two conveyor belts in the material handling conveyor line 401 and below the conveyor belts. The first lifting device 4021 and the second lifting device 4023 can be cylinders or linear motors. Correspondingly, the transport assembly 403 includes a conveyor belt assembly 4031, a slider 4032, and a slide rail 4033. The slide rail 4033 is located on the sixth frame 4. Located above and below the material handling conveyor line 401, slider 4032 is slidably mounted on slide rail 4033. The starting end of slide rail 4033 is located below the material handling conveyor line 401, and the ending end of slide rail 4033 is located at the input end of chain fixture line mechanism 6. Second lifting device 4023 is mounted on slider 4032, and the output end of second lifting device 4023 is vertically upward and connected to the lower end face of horizontally placed primary pitch plate 4024. Connecting plate 4034 is provided on slider 4032, and connecting plate 4034 is connected to the conveyor belt in conveyor belt assembly 4031. The starting end of conveyor belt assembly 4031 is located below the material handling conveyor line 401. Below line 401, the end of conveyor belt assembly 4031 is located at the input end of chain fixture line mechanism 6; the input end of chain fixture line mechanism 6 is provided with two spaced secondary pitch plates 4025; the pitch change and transportation process of round batteries is as follows: First, because the end of material handling conveyor line 401 is provided with a stop 4011, a row of round battery packs will be retained at the end of material handling conveyor line 401. Then, the first lifting device 4021 causes the pressure plate 4022 to move downwards to a certain height (the distance between the pressure plate 4022 at this height and the conveying surface on the material handling conveyor line 401 is greater than the diameter of a round battery, which can be 1).(5 round battery diameters), then the second lifting device 4023 raises the primary pitch plate 4024. During the raising process, it lifts a row of round battery packs at the end of the material handling conveyor line 401, causing the round batteries to detach from the material handling conveyor line 401. Then, under the pressure of the pressure plate 4022, the round batteries in the row of round battery packs will each enter the multiple first placement slots set on the primary pitch plate 4024, thus completing the primary pitch change of the round batteries. Then, driven by the conveyor belt assembly 4031, the primary pitch plate 4024 moves through the connecting plate 4034 to the second lifting device 4023, which moves to above the two secondary pitch plates 4025 at the input end of the chain fixture line mechanism 6. Then, the second lifting device 4023 descends, and the primary pitch plate 4024 descends. The two ends of the round batteries will contact the two secondary pitch plates 4025, thus placing them in the multiple second placement slots set on the secondary pitch plates 4025, thus completing the secondary pitch change. Of course, the primary pitch plate 4024... The distance between two adjacent first placement slots on the feeder 401 and the distance between two adjacent second placement slots on the secondary pitch-changing plate 4025 are very close, ensuring that the round batteries can be stably placed in the second placement slots. Then, through the chain fixture line mechanism 6, these round batteries are loaded into the fixture for subsequent transport. The round batteries that have passed visual inspection are arranged in a row, and the distance between adjacent round batteries is changed to the same distance as the placement slots in the transport fixture through secondary pitch-changing, facilitating the loading of the round batteries into the fixture. Initially, adjacent round batteries on the feeder 401 are almost touching, while there is a certain distance between adjacent placement slots in the fixture. If only one pitch change is performed, the pitch change distance may be too large, easily causing some round batteries to fail to enter the placement slots on the pitch-changing plate, resulting in them falling off during transport. Only through two pitch changes is the distance between adjacent round batteries changed to the same distance as the adjacent placement slots in the fixture, thus making the pitch-changing process of the round batteries more stable.

[0112] Specifically, the round battery conveyor line 12 and the carton conveyor line 13 are arranged in parallel. The cartoning mechanism 7 includes a seventh support 701 and a round battery handling assembly 702 and a round battery guiding assembly 703 mounted on the seventh frame. The round battery handling assembly 702 includes a first moving assembly and a handling component 70236 mounted on the output end of the first moving assembly. The first moving assembly includes a first horizontal moving assembly and a first vertical moving assembly. The first horizontal moving assembly includes a fifth linear drive device 7021 and a first horizontal moving plate 7022. The fifth linear drive device 7021 can be a linear motor or a cylinder. The first horizontal moving plate 7022 is slidably mounted on the seventh support 701. The first horizontal moving plate 7022 is located above the circular battery conveying line 12, and the moving direction of the first horizontal moving plate 7022 is perpendicular to the circular battery transport direction. A first vertical moving component is located on the lower end face of the first horizontal moving plate 7022. The first vertical moving component includes a third lifting component 7023, which includes a fourth lifting component 70231, a horizontal mounting plate 70232, and a fifth lifting component 70234. The fourth lifting component 70231 is mounted on the lower end face of the first horizontal moving plate 7022, and a conveying component 70236 is mounted on the output end of the fifth lifting component 70234. The output end of the fourth lifting component 70231 faces downwards. The horizontal mounting plate 70232... 32 is installed at the output end of the fourth lifting assembly 70231. An eighth linear drive device 70233 is provided on the upper surface of the horizontal mounting plate 70232. The eighth linear drive device 70233 can be a linear bearing. The output shaft of the eighth linear drive device 70233 passes downward through the horizontal mounting plate 70232 and connects to the vertical mounting plate 70235. A spring is sleeved on the output shaft of the eighth linear drive device 70233, and the spring is located between the lower surfaces of the vertical mounting plate 70235 and the horizontal mounting plate 70232. The fifth lifting assembly 70234 is fixedly installed on the side wall of the vertical mounting plate 70235. The conveying component 70236 is slidably disposed on the side wall of the vertical mounting plate 70235. The fifth lifting... The output end of component 70234 faces downward and is connected to the upper end face of the transport component 70236. The spring is used to buffer the impact and prevent the transport component 70236 from hitting obstacles. Specifically, the fourth lifting component 70231 and the fifth lifting component 70234 can both be cylinders or linear motors. Thus, the fifth linear drive device 7021 and the fourth lifting component 70231 and the fifth lifting component 70234 in the third lifting component 7023 can drive the transport component 70236 to move horizontally and vertically. Moreover, a transport frame 70237 is provided below the transport component 70236, and a fourth suction component is provided on the lower end face of the transport component 70236. The fourth suction component can be an electromagnet.During transport, the fifth linear drive device 7021 moves the transport component 70236 to directly above the fixture carrying the round batteries on the round battery conveyor line 12 by moving the first horizontal moving plate 7022. Then, the third lifting assembly 7023 is activated to transport the transport component 70236 to the round battery location, and the transport frame 70237 is fitted over the outside of the round battery, causing the fourth suction component of the transport component 70236 to adsorb the round battery. Then, under the action of the fifth linear drive device 7021 and the third lifting assembly 7023, the round battery is transported to the round battery guide assembly 703.

[0113] Specifically, the circular battery guide assembly 703 includes a second moving assembly and a guide member 7039. The second moving assembly includes a second horizontal moving assembly, a second pressing assembly, a third horizontal moving assembly, and a fourth vertical moving assembly. The second horizontal moving assembly includes a sixth linear drive device 7031 and a second horizontal moving plate 7032. The sixth linear drive device 7031 is disposed on the upper end face of the seventh bracket 701, and the second horizontal moving plate 7032 is slidably disposed on the upper end face of the seventh bracket 701, with the sliding direction perpendicular to the vertical direction. The transport direction of the paper box conveyor line 13 includes a second pressing assembly comprising a sixth lifting assembly 7033 and a lifting plate 7034. The sixth lifting assembly 7033 is located above the third horizontal moving assembly, and the lifting plate 7034 is connected to the output end of the sixth lifting assembly 7033. Multiple pressing rods 7035 are connected to the lower end of the lifting plate 7034. The third horizontal moving assembly includes a seventh linear drive device 7036 and a third horizontal moving plate 7037. The seventh linear drive device 7036 is mounted on the second horizontal moving plate 7037. The lower end face of 2, and the output end of the seventh linear drive device 7036 is connected to the third horizontal moving plate 7037. The fourth vertical moving component includes a seventh lifting component 7038, the output end of the seventh lifting component 7038 faces downward, and the output end of the seventh lifting component 7038 is connected to the guide member 7039. The guide member 7039 is vertically slidably disposed on the vertical plates at both ends of the third horizontal moving plate 7037. The guide member 7039 has an L-shaped structure, and multiple guide grooves 7039 are provided on the vertical surface of the guide member 7039. 1. The horizontal surface of the guide member 7039 is provided with a plurality of guide holes 70392 that cooperate with the guide groove 70391. The lower end of each guide hole 70392 is provided with a plurality of elastic guide strips. The plurality of elastic guides form a conical guide clamp 7040. The round battery transport assembly 702 transports the round battery into the guide hole 70392, where it will be blocked by the elastic guide clamp. The number of pressure rods 7035 is the same as the number of guide grooves 70391. The pressure rods 7035 are used to press the round battery in the guide groove 70391 into the cardboard box.In use, the sixth linear drive device 7031 drives the second horizontal moving plate 7032 to move to the grid position where it should be placed in the corresponding cardboard box. Then, through the seventh linear drive device 7036 and the seventh lifting assembly 7038, the conical guide clamp 7040 is moved into the grid inside the corresponding cardboard box. Then, the round battery transport assembly 702 transports the round battery into the corresponding guide groove 70391. The round battery then moves downward along the guide groove 70391 into the corresponding guide hole 70392, where it is blocked by the conical guide clamp 7040. Then, the sixth lifting assembly 7033 drives the lifting plate 7034 to move downward, causing the pressure rod 7035 to press the round battery in the corresponding guide hole 70392, allowing the round battery to enter the cardboard box grid. Finally, the seventh lifting assembly 7038 is driven to move the guide member 7039 upward. The movement, under the action of the pressure rod 7035, causes the round battery to completely detach from the guide hole 70392 and enter the grid of the cardboard box. Then, the sixth lifting component 7033 controls the lifting plate 7034 to move upward, causing the pressure rod 7035 to detach from the guide hole 70392. Then, the seventh linear drive device 7036 and the sixth linear drive device 7031 move to the next grid for loading round batteries in the cardboard box. Then, in conjunction with the round battery guide component 703, the sixth lifting component 7033 and the seventh lifting component 7038, the round battery is packed into the box. This process is repeated to achieve the boxing of round batteries. It can be seen that when pressing the round battery, the axis of the pressure rod 7035 coincides with the axis of the corresponding guide hole 70392, so that the pressure rod 7035 can press the round battery in the guide hole 70392. Furthermore, because the grid lines on cardboard boxes are not always perfectly standardized during use, they can sometimes be misaligned, resulting in irregular grid holes. To address this, a tapered guide clamp 7040 is installed. The lower end of the tapered guide clamp 7040 is smaller than the grid holes, allowing it to be stably inserted into the grid and guide the round battery securely to its corresponding grid position. This eliminates the need to pre-standardize the cardboard box grid lines, saving time and effort.

[0114] The cardboard box feeding mechanism 5 separates the cardboard box stacks into individual boxes for transport and opens the box lids. The boxes are then transported via the cardboard box conveyor line 13 to the boxing mechanism 7. Simultaneously, the chain fixture line mechanism 6 uses a fixture to transport the batteries to the inlet of the boxing mechanism 7. The boxing mechanism 7 then fills the cardboard boxes with round batteries. Between the lid closing mechanism 10 on the round battery appearance inspection line and the boxing mechanism 7, there are also a desiccant feeding mechanism 8 and a blister pack feeding mechanism 9. The desiccant feeding mechanism 8 and the blister pack feeding mechanism 9... The feeding mechanism 9 is used to place desiccant and blister packs into the cardboard boxes filled with round batteries. The closing mechanism 10 is used to close the cardboard boxes filled with round batteries, desiccant and blister packs. Then, the boxes are transported to the stacking mechanism 11 via the cardboard box conveyor line 13. The closed cardboard boxes are then moved to the stacking station. The cardboard box feeding mechanism 5, the chain fixture line mechanism 6, the desiccant feeding mechanism 8, the blister pack feeding mechanism 9, the closing mechanism 10 and the stacking mechanism 11 are all existing mechanisms, and their specific structures will not be described in detail.

[0115] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A circular battery appearance inspection line, characterized in that, include: The feeding mechanism has a raw material supply area at its input port, which is filled with a battery frame containing round batteries. This area is used to extract and transport the round batteries from the battery frame within the raw material supply area. An appearance inspection mechanism is used to inspect the appearance of the round batteries output from the feeding mechanism; An NG discharge mechanism is used to discharge unqualified round batteries detected by the appearance inspection mechanism and output qualified round batteries. A material handling mechanism is used to sort and adjust the pitch of qualified round cells output from the NG discharge mechanism; The cardboard box feeding mechanism is used to break up stacks of cardboard boxes for individual box transport and to open the box lids; A chain fixture line mechanism is used to transfer the round batteries discharged from the feeding mechanism to the carton in the packaging position via a fixture; A boxing mechanism is used to load the round batteries fed by the chain fixture line mechanism into the cardboard box; A lid-closing mechanism for closing the lid of a cardboard box filled with round batteries; The palletizing mechanism is used to transport the closed cardboard boxes to the palletizing station; A round battery conveyor line is used to transport the jig loaded with round batteries at the output end of the chain jig line mechanism to the input end of the boxing mechanism. The paper box conveyor line starts at the output end of the paper box feeding mechanism and ends sequentially through the boxing mechanism and the lid closing mechanism and is located at the palletizing mechanism. The feeding mechanism includes a first frame and a flipping component, a gripping component, and a feeding conveyor line disposed on the first frame. The input end of the feeding conveyor line is located between the flipping component and the gripping component. The flipping assembly includes a flipping sub-assembly and a pressure plate sub-assembly. The flipping sub-assembly includes a flipping frame with a bearing cavity and a first driving assembly that drives the flipping frame to flip toward the feeding conveyor line. The pressure plate assembly includes a second driving assembly and a blocking plate disposed at the driving end of the second driving assembly. The second driving assembly is disposed on the upper surface of the flipping frame, and the driving end faces the upper end of the flipping frame. The gripping component includes a third driving component and a gripping plate. One end of the gripping plate is connected to the driving end of the third driving component, and the other end of the gripping plate is connected to a first suction element. A baffle is provided on the side of the input end of the feeding conveyor near the third drive component. The baffle is provided with a blocking hole for the gripping plate to pass through. The height of the blocking hole is smaller than the diameter of the round battery. The flipping frame has a horizontal state and a vertical state. When the flipping frame is in the horizontal state, the battery frame is allowed to enter. Before the flipping frame flips, the blocking plate abuts against the round batteries in the battery frame under the drive of the second drive component and leaves a gripping opening for a row of round batteries to be taken out. After the flipping frame flips from the horizontal state, it is in the vertical state. The gripping opening is located at the bottom of the flipping frame and faces the feeding conveyor line. The third drive assembly drives the gripping plate through the blocking hole and into the gripping opening when the flipping frame is in a vertical state. The first suction member picks up the round battery, and then the gripping plate moves away from the gripping opening and unloads the round battery from the first suction member to the input end of the feeding conveyor line through the blocking hole.

2. The circular battery appearance inspection line according to claim 1, characterized in that, The feeding mechanism further includes a feeding conveyor line, a first conveying component for transporting battery frames in the raw material supply area to the input end of the feeding conveyor line, and a second conveying component for removing battery frames that have been fed from the output end of the feeding conveyor line. The first conveying component is located at the input end of the feeding conveyor line, the second conveying component is located at the output end of the feeding conveyor line, and the flipping frame is located above the feeding conveyor line. The clamping ends of the first and second transport components are provided with clamping blocks, and the inner sidewalls of the clamping blocks are inclined.

3. The circular battery appearance inspection line according to claim 1, characterized in that, The first drive assembly includes a first linear drive device and a crank. A first support plate is provided on the first frame. The first linear drive device is located below the first support plate. The drive end of the first linear drive device is connected to one end of the crank, and the other end passes upward through the first support plate and is rotatably connected to the lower end of the tilting frame located above the first support plate near the feeding conveyor line. A first rotating shaft is provided on the first support plate, and the connection between the crank and the tilting frame is rotatably connected to the first rotating shaft. A support rod is also provided above the first support plate for supporting the tilting frame in a horizontal state. The third drive assembly includes a third linear drive device and a first connecting plate. The drive end of the third linear drive device is connected to a second connecting plate. Multiple buffer springs are connected between the first connecting plate and the second connecting plate. The gripping plate is connected to the first connecting plate, and the first connecting plate slides on the first frame.

4. The circular battery appearance inspection line according to claim 1, characterized in that, The feeding conveyor line includes a third frame and a first conveyor belt assembly, wherein the first conveyor belt assembly is mounted on the third frame; A first limiting plate is horizontally arranged on the first frame. The first limiting plate is located above the first conveyor belt in the first conveyor belt assembly, and the distance between the first limiting plate and the first conveyor belt in the first conveyor belt assembly is between the diameter of one round battery and the diameter of two round batteries. The first limiting plate has a mounting hole, and a correction plate is rotatably mounted on the mounting hole. When the correction plate rotates along the transport direction of the first conveyor belt assembly and comes into contact with the wall of the mounting hole, the distance between the lowest point of the correction plate and the first conveyor belt in the first conveyor belt assembly can accommodate a round battery.

5. The circular battery appearance inspection line according to claim 1, characterized in that, The appearance inspection mechanism includes a fourth frame and a first input component, a first transfer component, a first scanning device, a circumference detection device, an edge detection device, a first output component, an inspection conveyor line, a first detection device for detecting the gaskets at the positive and negative terminals of the round battery, and a second detection device for detecting whether there are defects at the positive and negative terminals of the round battery, all mounted on the fourth frame. The input end of the first input component is connected to the output end of the feeding mechanism. The first input component, the first transfer component, the first output component, and the inspection conveyor line are arranged sequentially along the round battery transport direction to transfer round batteries. The first scanning device, the circumference detection device, and the edge detection device are located above the first transfer component and arranged sequentially along the round battery transport direction. The first detection device and the second detection device are located on both sides of the inspection conveyor line and arranged sequentially along the round battery transport direction.

6. The circular battery appearance inspection line according to claim 5, characterized in that, The first transfer assembly includes a first transfer tray group, a second transfer tray group, a third transfer tray group, and a fourth transfer tray group arranged sequentially along the transport direction of the round battery; The first transfer tray group, the second transfer tray group, the third transfer tray group and the fourth transfer tray group each include two transfer trays that are spaced apart and rotatably mounted on the fourth frame. The outer side walls of the two transfer trays are provided with a plurality of uniformly circumferentially distributed grooves, and the corresponding grooves on the two transfer trays constitute a first transfer groove. A second suction element for suctioning round batteries is provided in the first transfer groove. The distance between two transfer disks in the first transfer disk group is less than the distance between two transfer disks in the second transfer disk group. The ends of the two transfer disks in the first transfer disk group near the second transfer disk group are located between the two transfer disks in the second transfer disk group, and the outer walls of the transfer disks in the first transfer disk group and the outer walls of the transfer disks in the second transfer disk group form a first rotation region. The distance between two transfer disks in the third transfer disk group is less than the distance between two transfer disks in the second transfer disk group and the distance between two transfer disks in the fourth transfer disk group. The two ends of the two transfer disks in the third transfer disk group are located between two transfer disks in the second transfer disk group and between two transfer disks in the fourth transfer disk group, respectively. The outer walls of the transfer disks in the second transfer disk group and the outer walls of the transfer disks in the third transfer disk group form a second rotation region, and the outer walls of the transfer disks in the third transfer disk group and the outer walls of the transfer disks in the fourth transfer disk group form a third rotation region. It also includes a first lifting member, a second lifting member, and a third lifting member. The first lifting member is located between the ends of the two transfer trays in the first transfer tray group near the second transfer tray group and at the entrance of the first rotation area. The upper end of the first lifting member protrudes outside the transfer tray. The second lifting member is located between the ends of the two transfer trays in the second transfer tray group near the third transfer tray group and at the entrance of the second rotation area. The upper end of the second lifting member protrudes outside the transfer tray. The third lifting member is located between the ends of the two transfer trays in the third transfer tray group near the fourth transfer tray group and at the entrance of the third rotation area. The upper end of the third lifting member protrudes outside the transfer tray.

7. The circular battery appearance inspection line according to claim 1, characterized in that, The NG discharge mechanism includes a fifth frame and a first NG conveying line, a first pushing device, and a first storage component mounted on the fifth frame; the input end of the first NG conveying line is connected to the output end of the appearance inspection mechanism. The first NG conveyor line is provided with a first push port and a first discharge port. The first push device and the first storage component are respectively located on both sides of the first NG conveyor line. The output end of the first push device is located at the first push port, and the input end of the first storage component is located at the first discharge port. The first push device sends the defective round batteries at the first push port to the input end of the first storage component through the first discharge port.

8. The circular battery appearance inspection line according to claim 7, characterized in that, The NG discharge mechanism further includes a second input component, a second transfer component, a second barcode scanning device, a second output component, a second NG conveyor line, a third pusher device, and a third storage component, which are sequentially arranged on the fifth frame. The second input component is connected to the output end of the first NG conveyor line, and the second input component, the second transfer component, and the second output component are sequentially connected. The second scanning device is located above the second transfer component and is used to scan the round batteries transported on the second transfer component. The second NG conveyor line is provided with a third push port and a third discharge port. The third push device and the third storage component are respectively located on both sides of the second NG conveyor line. The output end of the third push device is located at the third push port, and the input end of the third storage component is located at the third discharge port. The third push device sends the defective round batteries at the third push port to the input end of the third storage component through the third discharge port.

9. The circular battery appearance inspection line according to claim 1, characterized in that, The material handling mechanism includes a sixth frame and a material handling conveyor line, a pitch control assembly, and a transport assembly mounted on the sixth frame; The end of the material handling conveyor line is provided with a stop block; The pitch-changing assembly includes a first lifting device, a pressure plate, a second lifting device, a primary pitch-changing plate, and a secondary pitch-changing plate. The pressure plate is connected to the lifting end of the first lifting device and is located above the end of the material handling conveyor line. The output end of the second lifting device is vertically upward and connected to the lower end face of the horizontally placed primary pitch-changing plate. The primary pitch-changing plate is located between two conveyor belts in the material handling conveyor line and below the conveyor belts. There are two secondary pitch-changing plates, which are spaced apart and located at the input end of the chain fixture line mechanism. The transport assembly includes a conveyor belt assembly, a slider, and a slide rail. The slide rail is mounted on the sixth frame and located below the material handling conveyor line. The slider is slidably mounted on the slide rail. The starting end of the slide rail is located below the material handling conveyor line, and the ending end of the slide rail is located at the input end of the chain fixture line mechanism. The second lifting device is mounted on the slider. A connecting plate is provided on the slider. The connecting plate is connected to the conveyor belt in the conveyor belt assembly. The starting end of the conveyor belt assembly is located below the material handling conveyor line, and the ending end of the conveyor belt assembly is located at the input end of the chain fixture line mechanism. The stop block causes the round batteries at the exit of the material feeding conveyor line to form a row of round battery packs, and the pressure plate descends to a certain height. The second lifting device raises the primary pitch plate, causing the round batteries to detach from the material feeding conveyor line and cooperate with the pressure plate to complete a primary pitch change. The conveyor belt assembly transports the primary pitch plate to above the secondary pitch plate. The second lifting device then descends, positioning the primary pitch plate below the secondary pitch plate. The round battery is placed in the second placement slots opened on the two secondary pitch plates, thus completing the secondary pitch change.

10. The circular battery appearance inspection line according to claim 1, characterized in that, The boxing mechanism includes a seventh frame and a round battery handling assembly and a round battery guiding assembly disposed on the seventh frame; The circular battery transport assembly includes a first moving component and a transport member disposed at the output end of the first moving component. A transport frame is provided on the lower end face of the transport member, and a fourth suction member is provided on the lower end face of the transport member. The circular battery guide assembly includes a second moving assembly and a guide member disposed at the lower end of the second moving assembly. The guide member has an L-shaped structure. Multiple guide grooves are provided on the vertical surface of the guide member, and multiple guide holes are provided on the horizontal surface of the guide member. Multiple elastic guide strips are provided at the lower end of the guide holes, and the multiple elastic guide strips form a conical guide clamp. The first moving component controls the transporter to transport the round batteries between the round battery conveyor line and the guide, and the second moving component is used to transport the round batteries on the guide into the cardboard box.

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