Conveying device and battery production line

Abstract

The application relates to the technical field of battery production, and discloses a conveying device and a battery production line, which comprise a rack, a conveying chain and a buffer chain. Specifically, the conveying chain is movably arranged on the rack, a plurality of receiving members are arranged on the conveying chain, the receiving members are used for receiving batteries, and the conveying chain is used for conveying the batteries to a battery processing device; the buffer chain is located on one side of the conveying chain; a transfer device is arranged on the rack, and the transfer device is suitable for transferring the receiving members between the conveying chain and the buffer chain. The conveying device and the battery production line disclosed by the application solve or improve the problems of low production efficiency and low fault tolerance.

Description

Technical Field

[0001] This application relates to the field of battery production technology, specifically to conveying devices and battery production lines. Background Technology

[0002] With advancements in battery technology, market demand is high. In automated battery production lines, batteries are transported using trays.

[0003] In related technologies, a conveyor chain is installed in the workshop, with trays on the chain. The conveyor chain has an input end. The previous process places batteries on the trays at the input end of the conveyor chain; the trays improve the stability of the batteries during transportation. The conveyor chain transports the batteries to the processing unit via the trays. After processing, the batteries are removed by the next processing unit. The trays return to the input end of the conveyor chain. However, if the conveyor chain malfunctions and stops working, there are no trays returning to the input end, making it unable to receive batteries from the previous process. This forces the previous process to stop, resulting in low production efficiency and low fault tolerance. Utility Model Content

[0004] This application provides a conveying device and a battery production line to solve or improve the problems of low production efficiency and low fault tolerance.

[0005] In a first aspect, this application provides a conveying device, comprising: frame; A conveyor chain is movably mounted on the frame, and multiple receiving components are provided on the conveyor chain for receiving batteries. The conveyor chain is used to transport batteries to a battery processing device. A buffer chain is located on one side of the delivery chain; A transfer device, disposed on the frame, is adapted to transfer the receiving component between the conveyor chain and the buffer chain.

[0006] Beneficial Effects: The conveyor chain is equipped with multiple receiving components. The device in the previous process of the conveyor chain installs the battery onto the receiving component. The conveyor chain then transports the battery through the receiving component to the battery processing device. After the battery is delivered, the receiving component continues to move with the conveyor chain. A transfer device transfers some of the receiving components after the battery processing device to a buffer chain. The buffer chain stores a certain number of receiving components, and another portion of the receiving components can be transferred by the transfer device to the side of the conveyor chain corresponding to the device in the previous process. When the conveyor chain malfunctions and cannot operate, the device in the previous process of the conveyor chain installs the battery onto the receiving component located on the buffer chain. Simultaneously, the conveyor chain can be shut down for maintenance without stopping the device in the previous process, improving the fault tolerance of the device. After the conveyor chain maintenance is completed, the transfer device can transfer the receiving components from the buffer chain back to the conveyor chain for continued operation, improving production efficiency.

[0007] In one optional embodiment, the buffer chain is movably mounted on the frame, with the input end of the buffer chain corresponding to the output end of the conveyor chain, and the output end of the buffer chain corresponding to the input end of the conveyor chain; the receiving member mounted on the buffer chain is slidably connected to the buffer chain, and the output end of the buffer chain is provided with a first baffle for preventing the receiving member from detaching from the buffer chain.

[0008] In one optional embodiment, a return chain is further included, the input end of which is arranged corresponding to the output end of the conveyor chain, and the output end of the return chain is corresponding to the input end of the conveyor chain. The transfer device is adapted to transfer the receiving member between the conveyor chain and the return chain. The receiving member disposed on the return chain is slidably connected to the return chain. The output end of the return chain is provided with a second baffle for preventing the receiving member from detaching from the return chain.

[0009] In one alternative implementation, the buffer chain is positioned between the delivery chain and the return chain.

[0010] In one optional embodiment, the device further includes multiple first conveying branches, each with an input end corresponding to a side of the conveying chain. Each conveying chain is provided with a flow guiding mechanism corresponding to the input end of each first conveying branch. The flow guiding mechanism is adapted to guide the receiving component on the conveying chain to the first conveying branch. The output end of each first conveying branch is adapted to be connected to the battery processing device.

[0011] In one optional implementation, the flow guiding mechanism includes: A first guide plate is rotatably disposed on the conveyor chain and can rotate between a first position and a second position. In the first position, the first guide plate is set at an angle to the conveying direction of the conveyor chain to guide the receiving member on the conveyor chain into the first conveyor branch. In the second position, the extension direction of the first guide plate is parallel to the conveying direction of the conveyor chain. A first drive mechanism is mounted on the frame, and the drive end of the first drive mechanism is connected to the first guide plate to drive the first guide plate to rotate.

[0012] In one optional embodiment, the conveying device includes: A rotating disk is rotatably mounted on the frame. The rotating disk is provided with multiple positioning slots, which are arranged at equal intervals. The opening of each positioning slot can correspond to the output end of the first conveying branch. The receiving member can be snapped into the positioning slot. Along the first direction, the projection of the positioning slot can correspond to the processing end of the battery processing device. The second conveying branch has its input end connected to the output end of the rotary disk, and its output end is connected to the conveying chain. A second drive mechanism is mounted on the frame, and the output shaft of the second drive mechanism is connected to the rotating disk to drive the rotating disk to rotate. Wherein, the first direction is perpendicular to the rotation surface of the rotating disk.

[0013] In one alternative embodiment, the transfer device is a robotic arm adapted to transfer the receiving component between the conveyor chain and the buffer chain; And / or, the transfer device is a robotic arm adapted to transfer the receiving component between the conveyor chain and the return chain; And / or, the transfer device is a robotic arm adapted to transfer the receiver between the buffer chain and the return chain.

[0014] In one optional embodiment, the transfer device includes: A receiving channel, wherein the input end of the receiving channel is connected to the output end of the conveyor chain; Two branch channels, the inputs of the two branch channels are respectively connected to the output of the receiving channel, and the outputs of the two branch channels are respectively connected to the input of the return chain and the input of the buffer chain; The second guide plate is rotatably disposed at the output end of the receiving channel. The second guide plate is adapted to rotate and switch between a third position and a fourth position. In the third position, the receiving channel is connected to the return chain, and in the fourth position, the receiving channel is connected to the buffer chain.

[0015] Secondly, this application also provides a battery production line, including a conveying device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a conveying device according to an embodiment of this application; Figure 2 for Figure 1 A magnified view of part A in the diagram; Figure 3 for Figure 1 A magnified view of part B in the diagram; Figure 4 This is a schematic diagram of the structure of a transfer device in a conveying device according to an embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 1. Frame; 2. Conveyor chain; 3. Receiving component; 4. Battery processing device; 5. Buffer chain; 6. Transfer device; 601. Receiving channel; 602. Branch channel; 603. Second guide plate; 7. First baffle; 8. Guide mechanism; 801. First guide plate; 9. Second baffle; 10. First conveyor branch chain; 11. Return chain; 12. Rotary disk; 1201. Positioning groove; 13. Second conveyor branch chain; 14. Second drive mechanism; 15. Battery; Z, First direction. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] With advancements in battery technology, market demand is high. In automated battery production lines, batteries are transported using trays.

[0022] In related technologies, a conveyor chain is installed in the workshop, with trays on the chain and an input end. The previous process places batteries on the trays at the input end of the conveyor chain, and the trays improve the stability of the batteries during transportation. The conveyor chain transports the batteries to the processing device via the trays, and after processing, the batteries are removed by the next process device. The trays return to the input end of the conveyor chain. However, when the conveyor chain malfunctions and stops working, there are no trays returning to the input end, making it impossible to receive batteries from the previous process. This forces the previous process to stop, resulting in low production efficiency and low error tolerance. Therefore, this application provides a conveyor device and a battery production line to solve or improve the problems of low production efficiency and low error tolerance.

[0023] The following is combined with Figures 1 to 4This describes an embodiment of the present application.

[0024] According to embodiments of this application, in one aspect, a conveying device is provided, such as... Figures 1 to 2 As shown, it includes: a frame 1, a conveyor chain 2, and a buffer chain 5. Specifically, the conveyor chain 2 is movably mounted on the frame 1, and multiple receiving components 3 are provided on the conveyor chain 2. The receiving components 3 are used to receive batteries 15, and the conveyor chain 2 is used to transport batteries 15 to the battery processing device 4. The buffer chain 5 is located on one side of the conveyor chain 2. The transfer device 6 is mounted on the frame 1 and is adapted to transfer the receiving components 3 between the conveyor chain 2 and the buffer chain 5.

[0025] In this embodiment, such as Figures 1 to 2 As shown, multiple receiving components 3 are provided on the conveyor chain 2. The device in the previous process of conveyor chain 2 installs the battery 15 onto the receiving component 3. The conveyor chain 2 transports the battery 15 through the receiving component 3. After the battery 15 is transported to the battery processing device 4, the receiving component 3 continues to move with the conveyor chain 2. The transfer device 6 transfers some of the receiving components 3 after passing through the battery processing device 4 to the buffer chain 5. The buffer chain 5 stores a certain number of receiving components 3, and another portion of the receiving components 3 can be transferred by the transfer device 6 to the side of the conveyor chain 2 corresponding to the device in the previous process. When the conveyor chain 2 malfunctions and cannot operate, the device in the previous process of conveyor chain 2 installs the battery 15 onto the receiving component 3 located on the buffer chain 5. Simultaneously, the conveyor chain 2 can be shut down for maintenance without stopping the device in the previous process, improving the fault tolerance of the device. After the maintenance of the conveyor chain 2 is completed, the transfer device 6 can transfer the receiving components 3 from the buffer chain 5 back to the conveyor chain 2 to continue operation, improving production efficiency.

[0026] Specifically, such as Figure 3 As shown, the receiving component 3 can be a receiving plate, a receiving cup, or a platform, and the receiving component 3 can be provided with a mounting groove or a clamping mechanism to fix the battery 15 on the receiving component 3, thereby improving the stability of the battery 15 on the receiving component 3.

[0027] In some embodiments, first enclosures are provided on both sides of the cache chain 5 to restrict the movement of the receiving member 3 along the path of the cache chain 5.

[0028] In some embodiments, second enclosures are provided on both sides of the conveyor chain 2 to restrict the movement of the receiving component 3 along the path of the conveyor chain 2.

[0029] In one embodiment, such as Figure 1As shown, the buffer chain 5 is movably mounted on the frame 1. The input end of the buffer chain 5 corresponds to the output end of the conveyor chain 2, and the output end of the buffer chain 5 corresponds to the input end of the conveyor chain 2. The receiving member 3 mounted on the buffer chain 5 is slidably connected to the buffer chain 5. The output end of the buffer chain 5 is provided with a first baffle 7, which is used to prevent the receiving member 3 from detaching from the buffer chain 5.

[0030] In this embodiment, the transfer device 6 transfers the receiving component 3 from the conveyor chain 2 to the buffer chain 5. The buffer chain 5 then transports the receiving component 3 to a position corresponding to the input end of the conveyor chain 2, facilitating the transfer of the receiving component 3 by the transfer device 6. A baffle is provided at the output end of the buffer chain 5 to confine the receiving component 3 to the buffer chain 5 and ensure that the receiving component 3 on the buffer chain 5 remains at the output end position of the buffer chain 5, corresponding to the input end of the conveyor chain 2, thus facilitating the transfer of the receiving component 3 from the buffer chain 5 to the conveyor chain 2 by the transfer device 6.

[0031] In some embodiments, such as Figure 1 As shown, the first baffle 7 is connected to the first enclosure plate. There is a first gap between the bottom of the first baffle 7 and the conveying surface of the buffer chain 5. The height of the first gap is less than the height of the receiving member 3 to prevent the receiving member 3 from detaching from the buffer chain 5.

[0032] In one embodiment, such as Figure 1 As shown, it also includes a return chain 11, the input end of which is arranged corresponding to the output end of the conveyor chain 2, and the output end of the return chain 11 is corresponding to the input end of the conveyor chain 2. The transfer device 6 is adapted to transfer the receiving component 3 between the conveyor chain 2 and the return chain 11. The receiving component 3, which is disposed on the return chain 11, is slidably connected to the return chain 11. The output end of the return chain 11 is provided with a second baffle 9, which is used to prevent the receiving component 3 from detaching from the return chain 11.

[0033] In this embodiment, the receiving component 3 output from the output end of the conveyor chain 2 is transferred to the input end of the return chain 11 by the transfer device 6. The return chain 11 transports the receiving component 3 to the part corresponding to the output chain, so that the receiving component 3 on the return chain 11 can be transferred to the conveying end of the conveyor chain 2 again.

[0034] Specifically, the transfer device 6 includes a first transfer section and a second transfer section. The first transfer section is located at the output end of the conveyor chain 2 and corresponds to the output end of the return chain 11 and the output end of the buffer chain 5. The second transfer section is located at the output end of the conveyor chain 2 and corresponds to the input end of the return chain 11 and the input end of the buffer chain 5.

[0035] Specifically, the first transfer unit and the second transfer unit can be robotic arms.

[0036] In one embodiment, such as Figure 1As shown, the buffer chain 5 is located between the transport chain 2 and the return chain 11.

[0037] In this embodiment, it is convenient to transfer the receiving component 3 on the return chain 11 to the buffer chain 5, and it is also convenient to transfer the receiving component 3 on the buffer chain 5 to the conveyor chain 2.

[0038] In one embodiment, such as Figure 1 The device also includes multiple first conveying branches 10, the input end of each first conveying branch 10 corresponding to the side of the conveying chain 2, and each conveying chain 2 is provided with a flow guiding mechanism 8 corresponding to the input end of each first conveying branch 10. The flow guiding mechanism 8 is adapted to guide the receiving part 3 on the conveying chain 2 to the first conveying branch 10, and the output end of each first conveying branch 10 is adapted to be connected to the battery processing device 4.

[0039] In this embodiment, such as Figure 1 and Figure 3 As shown, the conveyor chain 2 conveys the receiving parts 3, and the flow guiding mechanism 8 guides part of the receiving parts 3 on the conveyor chain 2 to the battery processing device 4. Through multiple first conveyor branches 10 and multiple flow guiding mechanisms 8, the receiving parts 3 on the conveyor chain 2 are introduced into different processing areas of the battery processing device 4, so that different processes can be implemented on the battery 15 to improve production efficiency.

[0040] In one embodiment, such as Figure 1 and Figure 3 As shown, the flow guiding mechanism 8 includes a first flow guiding plate 801 and a first driving mechanism. Specifically, the first flow guiding plate 801 is rotatably mounted on the conveyor chain 2 and can switch between a first position and a second position. In the first position, the first flow guiding plate 801 is set at an angle to the conveying direction of the conveyor chain 2 to guide the receiving member 3 on the conveyor chain 2 into the first conveying branch chain 10. In the second position, the extension direction of the first flow guiding plate 801 is parallel to the conveying direction of the conveyor chain 2. The first driving mechanism is mounted on the frame 1, and the driving end of the first driving mechanism is connected to the first flow guiding plate 801 to drive the first flow guiding plate 801 to rotate.

[0041] In this embodiment, when the first drive mechanism drives the first guide plate 801 to the first position, the extension direction of the first guide plate 801 is arranged at an angle to the conveying direction of the conveyor chain 2 at this position. That is, the first guide plate 801 is inclined and spans the conveyor chain 2 along its width. An output port is provided on the second circumference plate on the side of the conveyor chain 2. When the first guide plate 801 is in the first position, it can guide the receiving member 3 on the conveyor chain 2 to the output port. When the first guide plate 801 is in the second position, it blocks the output port and is disposed inside the output port. The first drive mechanism is a drive motor, and the first guide plate 801 is disposed on the first drive mechanism. The rotation surface of the first guide plate 801 is parallel to the conveying surface of the conveyor chain 2.

[0042] In one embodiment, such as Figure 1 and Figure 2 As shown, the conveying device includes: a rotary disk 12, a second conveying branch 13, and a second driving mechanism 14. Specifically, the rotary disk 12 is rotatably mounted on the frame 1, and the rotary disk 12 is provided with multiple positioning slots 1201. The multiple positioning slots 1201 are arranged at equal intervals, and the opening of each positioning slot 1201 can correspond to the output end of the first conveying branch 10. The receiving member 3 can be snapped into the positioning slot 1201. Along the first direction Z, the projection of the positioning slot 1201 can correspond to the processing end of the battery processing device 4. The input end of the second conveying branch 13 is connected to the output end of the rotary disk 12, and the output end of the second conveying branch 13 is connected to the conveying chain 2. The second driving mechanism 14 is mounted on the frame 1, and the output shaft of the second driving mechanism 14 is connected to the rotary disk 12 for transmission to drive the rotary disk 12 to rotate. The first direction Z is perpendicular to the rotation surface of the rotary disk 12.

[0043] In this embodiment, multiple rotary disks 12 are configured. The second drive mechanism 14 can drive the rotary disks 12 to rotate, thereby driving the positioning grooves 1201 on the rotary disks 12 to rotate, so that the opening of the positioning grooves 1201 is aligned with the output end of the first conveying chain 10. The first conveying chain 10 conveys the receiving component 3 into the positioning groove 1201, and the positioning groove 1201 positions the receiving component 3. Then, the rotary disks 12 rotate to align the next positioning component with the output end of the conveying chain 2. The rotary disks 12 rotate to convey the battery 15 to the processing position. The battery processing device processes the battery 15 on the rotary disks 12. The battery 15 is conveyed to different rotary disks 12 by multiple first conveying chains 10, and different processes are performed on the battery 15. Then, the receiving component 3 returns to the conveying chain 2 via the second conveying chain 2.

[0044] Specifically, the rotating disk 12 is located below the battery processing device 4, and does not affect the rotation of the rotating disk 12.

[0045] In one embodiment, the transfer device 6 includes a robotic arm adapted to transfer the receiving element 3 between the conveyor chain 2 and the buffer chain 5. And / or, the transfer device 6 is a robotic arm adapted to transfer the receiving part 3 between the conveyor chain 2 and the return chain 11; And / or, the transfer device 6 is a robotic arm adapted to transfer the receiving element 3 between the buffer chain 5 and the return chain 11.

[0046] In this embodiment, the receiving component 3 is transferred between the conveyor chain 2, the buffer chain 5, and the return chain 11 by a robotic arm, which is more precise and facilitates adjustment of the number of transfers.

[0047] In one embodiment, such as Figure 4 As shown, the transfer device 6 further includes: a receiving channel 601, two branch channels 602, and a second guide plate 603. Specifically, the input end of the receiving channel 601 is connected to the output end of the conveyor chain 2; the input ends of the two branch channels 602 are respectively connected to the output end of the receiving channel 601, and the output ends of the two branch channels 602 are respectively connected to the input end of the return chain 11 and the input end of the buffer chain 5; the second guide plate 603 is rotatably disposed at the output end of the receiving channel 601, and the second guide plate 603 is adapted to rotate and switch between a third position and a fourth position. In the third position, the receiving channel 601 is connected to the return chain 11, and in the fourth position, the receiving channel 601 is connected to the buffer chain 5.

[0048] In this embodiment, the output end of the conveyor chain 2 delivers all the receiving components 3 into the receiving channel 601, and controls the switching of the second guide plate 603 between the third and fourth positions according to the number of receiving components 3 required by the buffer chain 5 and the return chain 11. In the third position, the second guide plate 603 guides the receiving components 3 on the conveyor chain 2 to the return chain 11; in the fourth position, it guides the receiving components 3 on the conveyor chain 2 to the buffer chain 5.

[0049] Specifically, the receiving channel 601, the two branch channels 602, and the second guide plate 603 form the second transfer section.

[0050] According to an embodiment of this application, another aspect provides a battery production line, including a conveying device and a battery processing device 4.

[0051] It should be noted that the battery production line equipment includes the conveying device provided in the embodiments of this application, and therefore includes all the advantages of the conveying device mentioned above, so it will not be described again.

[0052] The following is an example, combined with Figures 1 to 4 A comprehensive explanation of all the above-mentioned plans is provided.

[0053] The device in the previous process installs the battery 15 on the receiving part 3 at the input end of the conveyor chain 2. Specifically, the receiving part 3 is a receiving plate, and the receiving part 3 is provided with a mounting groove. The battery 15 is installed in the mounting groove to improve the stability of the battery 15 on the receiving part 3.

[0054] When the conveyor chain 2 transports the receiving component 3 to the first conveyor branch chain 10, the first guide plate 801 guides the receiving component 3 into the first conveyor branch chain 10. After passing through the first conveyor branch chain 10, the receiving component 3 is transported into the positioning groove 1201. The rotary disk 12 drives the positioning groove 1201 to rotate, and the battery processing device 4 processes the battery 15 in sequence. The processed battery 15 is transported to the next process. The receiving component 3 returns to the conveyor chain 2 through the second conveyor chain 2 and is transported from the output end of the conveyor chain 2 to the receiving channel 601. The second guide plate 603 switches between the third position and the fourth position, which can control the number of receiving components 3 transported to the return chain 11 and the buffer chain 5.

[0055] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended application.

Claims

1. A conveying device, characterized in that, include: Rack (1); A conveyor chain (2) is movably mounted on the frame (1). The conveyor chain (2) is provided with a plurality of receiving parts (3). The receiving parts (3) are used to receive batteries (15). The conveyor chain (2) is used to transport batteries (15) to the battery processing device (4). The buffer chain (5) is located on one side of the conveyor chain (2); A transfer device (6) is provided on the frame (1) and is adapted to transfer the receiving element (3) between the conveyor chain (2) and the buffer chain (5).

2. The conveying device according to claim 1, characterized in that, The buffer chain (5) is movably mounted on the frame (1). The input end of the buffer chain (5) corresponds to the output end of the conveyor chain (2), and the output end of the buffer chain (5) corresponds to the input end of the conveyor chain (2). The receiving member (3) mounted on the buffer chain (5) is slidably connected to the buffer chain (5). The output end of the buffer chain (5) is provided with a first baffle (7), which is used to prevent the receiving member (3) from detaching from the buffer chain (5).

3. The conveying device according to claim 2, characterized in that, It also includes a return chain (11), the input end of which is arranged corresponding to the output end of the conveyor chain (2), the output end of which is corresponding to the input end of the conveyor chain (2), the transfer device (6) is adapted to transfer the receiving member (3) between the conveyor chain (2) and the return chain (11), the receiving member (3) disposed on the return chain (11) is slidably connected to the return chain (11), and the output end of the return chain (11) is provided with a second baffle (9), the second baffle (9) is used to prevent the receiving member (3) from detaching from the return chain (11).

4. The conveying device according to claim 3, characterized in that, The buffer chain (5) is located between the transport chain (2) and the return chain (11).

5. The conveying device according to claim 1, characterized in that, It also includes multiple first conveying branches (10), the input end of each first conveying branch (10) corresponds to the side of the conveying chain (2), the conveying chain (2) is provided with a flow guiding mechanism (8) corresponding to the input end of each first conveying branch (10), the flow guiding mechanism (8) is adapted to guide the receiving member (3) on the conveying chain (2) to the first conveying branch (10), and the output end of each first conveying branch (10) is adapted to be connected to the battery processing device (4).

6. The conveying device according to claim 5, characterized in that, The flow guiding mechanism (8) includes: The first guide plate (801) is rotatably disposed on the conveyor chain (2) and can rotate between a first position and a second position. In the first position, the first guide plate (801) is disposed at an angle to the conveying direction of the conveyor chain (2) so as to guide the receiving member (3) on the conveyor chain (2) into the first conveying branch chain (10). In the second position, the extension direction of the first guide plate (801) is parallel to the conveying direction of the conveyor chain (2). A first driving mechanism is mounted on the frame (1). The driving end of the first driving mechanism is connected to the first guide plate (801) for transmission, so as to drive the first guide plate (801) to rotate.

7. The conveying device according to claim 5, characterized in that, The conveying device includes: A rotating disk (12) is rotatably mounted on the frame (1). The rotating disk (12) is provided with a plurality of positioning slots (1201). The plurality of positioning slots (1201) are arranged at equal intervals. The slot opening of each positioning slot (1201) can correspond to the output end of the first conveying branch (10). The receiving member (3) can be snapped into the positioning slot (1201). Along the first direction (Z), the projection of the positioning slot (1201) can correspond to the processing end of the battery processing device (4). The second conveying branch (13) has its input end connected to the output end of the rotary disk (12), and its output end is connected to the conveying chain (2); The second drive mechanism (14) is mounted on the frame (1). The output shaft of the second drive mechanism (14) is connected to the rotating disk (12) for driving the rotating disk (12) to rotate. The first direction (Z) is perpendicular to the rotation surface of the rotating disk (12).

8. The conveying device according to claim 3, characterized in that, The transfer device (6) includes a robotic arm adapted to transfer the receiving element (3) between the conveyor chain (2) and the buffer chain (5); And / or, the transfer device (6) is a robotic arm adapted to transfer the receiving element (3) between the conveyor chain (2) and the return chain (11); And / or, the transfer device (6) is a robotic arm adapted to transfer the receiving element (3) between the buffer chain (5) and the return chain (11).

9. The conveying device according to claim 3, characterized in that, The transfer device (6) further includes: A receiving channel (601) is provided, the input end of which is connected to the output end of the conveyor chain (2); Two branch channels (602), the input terminals of the two branch channels (602) are respectively connected to the output terminal of the receiving channel (601), and the output terminals of the two branch channels (602) are respectively connected to the input terminal of the return chain (11) and the input terminal of the buffer chain (5); The second guide plate (603) is rotatably disposed at the output end of the receiving channel (601). The second guide plate (603) is adapted to rotate and switch between a third position and a fourth position. In the third position, the receiving channel (601) is connected to the return chain (11). In the fourth position, the receiving channel (601) is connected to the buffer chain (5).

10. A battery production line, characterized in that, include: The conveying device according to any one of claims 1 to 9.

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