endless conveyor line

Abstract

The application provides a kind of annular conveying line, comprising: rack, the rack is equipped with mounting frame;Fixedly arranged on the conveying platform of the rack;Carrier is arranged on the conveying platform, the carrier includes carrier body and the first magnet embedded in the bottom of the carrier body;Annular guide rail is fixedly arranged on the mounting frame;Movable device is arranged on the annular guide rail, the movable device includes body part and the second magnet embedded in the top of the body part and used for magnetic attraction with the first magnet;Drive device for driving the movable device to move on the annular guide rail, the drive device is located below the annular guide rail, the drive device includes drive module fixedly arranged on the mounting frame and transmission module connected with the drive module, the transmission module is connected with the movable device.The annular conveying line of the application has high integration degree and is easy to clean.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying system, in particular to a ring conveying line. BACKGROUND

[0002] With the rapid development of automation technology, more and more industries are also being automated, and the conveying line is a relatively common automation technology. The conveying line plays a great role in various industries, such as factory assembly line automation production, short distance material conveying, etc. The automation of the catering industry also has many occasions that need to use the conveying line. The conveying line commonly used in the catering industry at present includes plastic chain plate line, belt line, etc. When positioning is required, a blocking mechanism needs to be added. Such conveying line has a great defect, because the side where the tray is placed has many gaps, it is very easy to hide dirt, and it is troublesome to clean later.

[0003] Therefore, the skilled in the art need a new conveying line to solve the technical problem that the conveying line in the prior art is difficult to clean. SUMMARY

[0004] Based on this, the present application provides a ring conveying line to solve the technical problems existing in the prior art.

[0005] The present application provides a ring conveying line, comprising:

[0006] A rack, wherein the rack is provided with a mounting frame;

[0007] A conveying platform fixedly arranged on the rack;

[0008] A carrier arranged on the conveying platform, wherein the carrier comprises a carrier body and a first magnet embedded at the bottom of the carrier body;

[0009] A ring guide rail fixedly arranged on the mounting frame, wherein the ring guide rail is arranged in parallel with the conveying platform;

[0010] A movable device arranged on the ring guide rail, wherein the movable device comprises a body portion and a second magnet embedded at the top of the body portion and used for magnetic attraction with the first magnet;

[0011] A driving device used for driving the movable device to move on the ring guide rail, wherein the driving device is located below the ring guide rail, and the driving device comprises a driving module fixedly arranged on the mounting frame and a transmission module connected with the driving module, and the transmission module is connected with the movable device;

[0012] The driving module drives the transmission module to move when powered, and the transmission module drives the movable device to move along the annular guide rail, and the carrier moves on the conveying platform together with the movable device through the magnetic attraction of the first magnet and the second magnet.

[0013] As an embodiment of the present application, the body part comprises a first fixed block arranged between the conveying platform and the annular guide rail, a second fixed block arranged between the annular guide rail and the transmission module, and a connecting block for connecting the first fixed block and the second fixed block, and the second magnet is embedded on the top of the first fixed block.

[0014] As an embodiment of the present application, a plurality of first rollers are arranged on the first fixed block, the first rollers are in contact with the upper surface of the annular guide rail, a plurality of second rollers are arranged on the second fixed block, the second rollers are in contact with the lower surface of the annular guide rail, and the movable device slides on the annular guide rail through the first rollers and the second rollers.

[0015] As an embodiment of the present application, the bottom of the first fixed block is provided with a guide wheel for limiting the movement of the movable device along the annular guide rail, and the upper surface of the annular guide rail is recessed inward to form a guide groove, and the guide wheel rolls in the guide groove when the movable device moves on the annular guide rail.

[0016] As an embodiment of the present application, a plurality of movable devices are arranged, and the second fixed block is further provided with an anti-collision block for preventing direct collision between adjacent two movable devices.

[0017] As an embodiment of the present application, the movable device further comprises a clutch module arranged at the bottom of the body part, the clutch module comprises a mounting part fixed to the bottom of the second fixed block, a pawl movably arranged on the mounting part, a bearing assembly fixed to the bottom of the second fixed block, and a ratchet wheel and a sprocket wheel sleeved outside the bearing assembly, the ratchet wheel is fixedly connected with the sprocket wheel, and the sprocket wheel is engaged with the transmission module; when the ratchet wheel is engaged with the pawl, the sprocket wheel moves along the annular guide rail together with the transmission module, thereby driving the movable device to move along the annular guide rail and driving the carrier to move on the conveying platform; when the ratchet wheel is disengaged from the pawl, the sprocket wheel idles and stops moving along the annular guide rail, thereby stopping the movable device and the carrier from moving along the annular guide rail.

[0018] As an embodiment of the present application, the clutch module further comprises an unlocking guide rod movably arranged on the mounting portion, and a blocking module is further arranged on the mounting frame, when the blocking module is moved to abut against the unlocking guide rod, the unlocking guide rod pushes the pawl to disengage the pawl from the ratchet wheel, the sprocket idles and stops moving along the annular guide rail, so that the movable device and the carrier stop moving along the annular guide rail.

[0019] As an embodiment of the present application, the bearing assembly comprises a connecting rod fixedly arranged at the bottom of the second fixed block, a first bearing and a second bearing sleeved outside the connecting rod, the sprocket is sleeved outside the first bearing, and the ratchet wheel is sleeved outside the second bearing.

[0020] As an embodiment of the present application, the transmission module comprises a transmission chain, a driving sprocket and a driven sprocket arranged on both sides of the mounting frame respectively, the driving sprocket is connected with the driving module, the driving sprocket and the driven sprocket are engaged with the transmission chain respectively, and the transmission chain is also engaged with the sprocket; the driving module drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket to move through the transmission chain, so as to drive the sprocket to move together to make the movable device move along the annular guide rail and drive the carrier to move on the conveying platform.

[0021] As an embodiment of the present application, the mounting frame is further provided with a sensor for sensing the position of the movable device.

[0022] The present application has the advantages that: the annular conveying line of the present application is provided with a carrier on a fixed conveying platform, the annular guide rail, the movable device and the driving device are arranged in the rack and are isolated from the conveyed objects in a closed and isolated manner, which effectively prevents the conveyed objects from falling on other components and achieves good waterproof and dustproof effects; the carrier and the movable device are magnetically attracted, so that no connecting hole needs to be opened on the conveying platform, which further improves the sealing of the rack and meets the needs of food and beverage automation. Meanwhile, the present application can also be applied to other conveying scenes. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective structural schematic view of the annular conveying line of the embodiment of the present application.

[0024] Figure 2 It is an exploded structural schematic view of the annular conveying line of the embodiment of the present application.

[0025] Figure 3 It is a top view of the annular conveying line of the embodiment of the present application.

[0026] Figure 4Fig. 1 is a schematic view of a ring-shaped conveying line according to the present application; Figure 3 Fig. 2 is a sectional view along A-A direction;

[0027] Figure 5 Fig. 3 is a sectional view along B-B direction; Figure 3 Fig. 4 is a sectional view along C-C direction;

[0028] Figure 6 Fig. 5 is a schematic view of a carrier of the ring-shaped conveying line according to the present application; Figure 5 Fig. 6 is a schematic view of a movable device of the ring-shaped conveying line according to the present application;

[0029] Figure 7 Fig. 7 is a schematic view of a movable device of the ring-shaped conveying line according to the present application;

[0030] Figure 8 Fig. 8 is an exploded schematic view of a movable device of the ring-shaped conveying line according to the present application.

[0031] Figure 9 Fig. 9 is a schematic view of a movable device of the ring-shaped conveying line according to the present application.

[0032] The meanings of the reference numerals in the drawings are as follows:

[0033] 10 - frame; 11 - mounting frame; 12 - foot pad; 20 - conveying platform; 30 - carrier; 31 - carrier body; 32 - first magnet; 33 - third roller; 40 - ring-shaped guide rail; 41 - guide groove; 50 - movable device; 51 - body part; 511 - first fixed block; 512 - second fixed block; 513 - connecting block; 52 - second magnet; 53 - clutch module; 531 - mounting part; 532 - unlocking guide rod; 533 - pawl; 534 - ratchet wheel; 535 - sprocket; 536 - bearing assembly; 5361 - connecting rod; 5362 - first bearing; 5363 - second bearing; 54 - first roller; 55 - guide wheel; 56 - anti-collision block; 57 - second roller; 60 - driving device; 61 - driving module; 62 - transmission module; 621 - transmission chain; 622 - driving sprocket; 623 - driven sprocket; 624 - guide piece; 70 - blocking module; 80 - sensor; 200 - conveyed object. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application can be more thoroughly and completely understood.

[0035] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0037] Referring to Figures 1-3 , the annular conveying line of the embodiment of the application comprises a rack 10, a conveying platform 20, a carrier 30, an annular guide rail 40, a moving device 50 and a driving device 60. It should be noted that the conveying object 200 in the drawings is not the structure of the annular conveying line of the embodiment of the application, but is only used for illustration and description. Further, the rack 10 is provided with a mounting rack 11, the conveying platform 20 is fixedly arranged on the rack 10, and the conveying platform 20 is horizontally arranged. Specifically, the conveying platform 20 is entirely a plate-shaped structure.

[0038] Referring to Figure 1 and Figure 7 , the carrier 30 is arranged on the conveying platform 20, and the carrier 30 can move on the conveying platform 20. The carrier 30 comprises a carrier body 31 and a first magnet 32 embedded at the bottom of the carrier body 31. Specifically, the bottom of the carrier body 31 is provided with a groove, and the first magnet 32 is embedded in the groove. In this embodiment, the first magnet 32 is provided with two pieces, and the first magnet 32 is an annular magnet and a permanent magnet. Further, in order to make the carrier 30 slide more smoothly on the conveying platform 20, the bottom of the carrier 30 is provided with a plurality of third rollers 33, the third rollers 33 can roll on the conveying platform 20, and the carrier 30 slides on the conveying platform 20 through the third rollers 33, thereby improving the operation efficiency of the carrier 30. In this embodiment, the number of carriers 30 is multiple, and the specific number can be selected according to the actual application scene. The conveying object 200 is placed on the carrier 30.

[0039] Referring to Figure 2 , the annular guide rail 40 is fixedly arranged on the mounting rack 11, and the annular guide rail 40 is arranged in parallel with the conveying platform 20. Referring to Figures 5-9The movable device 50 is mounted on the annular guide rail 40, and the number of movable devices 50 is the same as the number of carriers 30. The movable device 50 can move along the annular guide rail 40. Each movable device 50 includes a body 51 and a second magnet 52 embedded in the top of the body 51. The second magnet 52 is used to magnetically engage with the first magnet 32, so that when the movable device 50 moves along the annular guide rail 40, it drives the carrier 30 to move together. In this embodiment, the movable device 50 and the carrier 30 are arranged in a one-to-one correspondence. Two second magnets 52 are provided; each second magnet 52 is an annular magnet and is a permanent magnet. The carrier 30 and the movable device 50 are relatively fixed by the magnetic engagement of the first magnet 32 ​​and the second magnet 52.

[0040] Please pay close attention. Figure 2 , Figure 4 and Figure 5 The drive device 60 is located below the annular guide rail 40 and is used to drive the movable device 50 to move on the annular guide rail 40. Specifically, the drive device 60 includes a drive module 61 fixedly mounted on the mounting bracket 11 and a transmission module 62 connected to the drive module 61. The transmission module 62 is connected to the movable device 50. When powered on, the drive module 61 drives the transmission module 62 to move, and the transmission module 62 drives the movable device 50 to move along the annular guide rail 40. Due to the magnetic attraction of the first magnet 32 ​​and the second magnet 52, the carrier 30 and the transported object 200 placed on the carrier 30 move in a ring on the conveying platform 20. The movement trajectory of the carrier 30 is consistent with the movement trajectory of the movable device 50, which means that the ring movement of the carrier 30 on the conveying platform 20 is also along the annular guide rail 40. In this embodiment, the drive module 61 is a rotary motor.

[0041] The carrier 30 of the circular conveyor line of the present invention is mounted on a fixed conveying platform 20. The frame 10 contains a circular guide rail 40, a movable device 50, and a drive device 60. Because the circular guide rail 40, the movable device 50, and the drive device 60 are isolated from the conveyed material 200 in a closed manner, the conveyed material 200 is effectively prevented from falling onto other components, while also achieving excellent waterproof and dustproof effects. The carrier 30 and the movable device 50 are magnetically connected, so no connection holes need to be opened on the conveying platform 20, further improving the enclosure of the frame 10 and meeting the needs of catering automation. It can also be applied to other conveying scenarios.

[0042] Further, please see Figures 5-9 The movable device 50 of the annular conveyor line in this embodiment of the invention has a double-layer structure. Please refer to the following for details. Figures 8-9The main body 51 includes a first fixing block 511, a second fixing block 512, and a connecting block 513 for connecting the first fixing block 511 and the second fixing block 512. Both the first fixing block 511 and the second fixing block 512 are plate-shaped structures and are arranged in parallel. Further details can be found in the attached image. Figure 6 A first fixing block 511 is located between the conveying platform 20 and the annular guide rail 40, and a second fixing block 512 is located between the annular guide rail 40 and the transmission module 62. That is, the first fixing block 511 and the second fixing block 512 are respectively located on the upper and lower surfaces of the annular guide rail 40. To better coordinate the first magnet 32 ​​and the second magnet 52, the second magnet 52 is located on top of the first fixing block 511. The first fixing block 511 has multiple first rollers 54, which contact the upper surface of the annular guide rail 40 and can roll along the upper surface of the annular guide rail 40. The second fixing block 512 has multiple second rollers 57, which contact the lower surface of the annular guide rail 40 and can roll along the lower surface of the annular guide rail 40. The movable device 50 slides on the annular guide rail 40 via the first rollers 54 and the second rollers 57.

[0043] Please pay close attention. Figure 6 and Figure 8 The bottom of the first fixing block 511 is also provided with guide wheels 55 for restricting the movement of the movable device 50 along the annular guide rail 40. In this embodiment, each movable device 50 is provided with two guide wheels 55. The upper surface of the annular guide rail 40 is recessed inward to form a guide groove 41. The guide wheels 55 cooperate with the guide groove 41, and the guide wheels 55 can roll along the side wall of the guide groove 41. The arrangement of the guide wheels 55 and the guide groove 41 can further ensure that the movable device 50 moves along the annular guide rail 40, making the connection between the movable device 50 and the annular guide rail 40 more reliable.

[0044] Furthermore, the tail of the second fixing block 512 is also provided with a collision-prevention block 56 to prevent direct collision between the main bodies 51 of two adjacent movable devices 50. The collision-prevention block 56 effectively prevents direct collision between adjacent main bodies 51, thus ensuring that adjacent vehicles 30 do not collide. In an optional embodiment, the end of the collision-prevention block 56 is provided with a soft material, such as sponge or silicone.

[0045] Furthermore, please refer to the following: Figures 8-9During operation, to enable the circular conveyor line of this embodiment of the invention to have a positioning function, allowing the carrier 30 to stop at a certain position on the circular guide rail 40, thus facilitating worker operations, the movable device 50 also includes a clutch module 53. The clutch module 53 is used to realize the power connection or disconnection between the movable device 50 and the transmission module 62. Specifically, the clutch module 53 is located at the bottom of the main body 51. The clutch module 53 includes a mounting part 531 located at the bottom of the second fixed block 512, an unlocking guide rod 532 movably located on the mounting part 531, a pawl 533 movably located on the mounting part 531, a bearing assembly 536 fixedly located at the bottom of the second fixed block 512, and a ratchet 534 sleeved on the outside of the bearing assembly 536. The mounting part 531 is fixedly mounted on the bottom of the second fixing block 512. The unlocking guide rod 532 can slide back and forth relative to the mounting part 531 along the forward direction of the movable device 50. The tail of the unlocking guide rod 532 is close to one end of the pawl 533, and the other end of the pawl 533 has a hook-shaped structure. The pawl 533 can rotate relative to the mounting part 531. The ratchet 534 and the sprocket 535 are fixedly connected, and the sprocket 535 meshes with the transmission module 62. When ratchet 534 and pawl 533 are engaged, they lock together, and sprocket 535 moves along the annular guide rail 40 together with transmission module 62, thereby driving movable device 50 to move along the annular guide rail 40, and carrier 30 to perform annular motion on conveyor platform 20 with the same trajectory as movable device 50. When ratchet 534 and pawl 533 are disengaged, sprocket 535 idles and stops moving along the annular guide rail 40, thereby stopping movable device 50 and carrier 30 from moving along the annular guide rail 40. To improve the engagement of ratchet 534 and pawl 533, the gear of ratchet 534 is inclined in the opposite direction to the hook-shaped structure of pawl 533.

[0046] Furthermore, please refer to the following: Figure 2 and Figure 4The mounting bracket 11 is also provided with a blocking module 70 for cooperating with the clutch module 53. Specifically, the blocking module 70 can be located on the side, bottom, or other positions of the mounting bracket 11, as long as it can achieve the blocking function. The number of blocking modules 70 can be one or more. In this embodiment of the invention, the blocking module 70 is located at the bottom of the mounting bracket 11. The blocking module 70 is provided with a drive component (not shown in the figure) for providing power to move the blocking module 70 to the position cooperating with the clutch module 53. The drive component can be a motor or a pressure cylinder, etc. When the blocking module 70 rises, it abuts against the unlocking guide rod 532. Since the movable device 50 has forward motion power provided by the transmission module 62, the unlocking guide rod 532 generates a backward relative force, causing it to slide backward until it abuts against the pawl 533. This pushes the pawl 533 to rotate outward, disengaging it from the ratchet 534. The sprocket 535 then idles and stops moving along the annular guide rail 40, thus stopping the movable device 50 and the carrier 30 from moving along the annular guide rail 40. When the blocking module 70 descends, the unlocking guide rod 532 returns to its original position, and the pawl 533 re-engages and locks with the ratchet 534. The movable device 50 continues to move forward, thereby driving the carrier 30 to move.

[0047] The circular conveyor line of this embodiment can also achieve stacking and buffering of the movable devices 50. When the first movable device 50 is blocked by the blocking module 70, when the second movable device 50, which is behind the first movable device 50, moves to the rear of the first movable device 50, the unlocking guide rod 532 of the second movable device 50 hits the anti-collision block 56 of the first movable device 50. The unlocking guide rod 532 of the second movable device 50 generates a rearward relative force, causing the unlocking guide rod 532 to slide backward until it abuts against the pawl 533, thereby causing the pawl 533 to rotate outward. The pawl 533 disengages from the ratchet 534, the sprocket 535 spins freely, and the sprocket 535 stops moving along the circular guide rail 40, thereby stopping the movable device 50 and the carrier 30 from moving along the circular guide rail 40, thus achieving stacking and buffering.

[0048] Furthermore, please refer to the following: Figure 9 The bearing assembly 536 includes a connecting rod 5361 fixedly mounted on the bottom of the second fixed block 512, a first bearing 5632 and a second bearing 5633 sleeved on the connecting rod 5361, a sprocket 535 sleeved on the outside of the first bearing 5632, and a ratchet 534 sleeved on the outside of the second bearing 5633. When the movable device 50 moves along the annular guide rail 40, the ratchet 534 and the sprocket 535 remain relatively stationary with respect to the connecting rod 5361. When the movable device 50 stops moving along the annular guide rail 40 and the transmission module 62 moves, the sprocket 535 and the ratchet 534 rotate freely through the first bearing 5632 and the second bearing 5633, that is, they rotate relative to the connecting rod 5361.

[0049] Furthermore, please refer to the following: Figure 2 , Figures 4-6 The transmission module 62 includes a transmission chain 621, a drive sprocket 622, and a driven sprocket 623. The drive sprocket 622 and driven sprocket 623 are respectively located on both sides of the mounting bracket 11. The transmission chain 621 is sleeved around the drive sprocket 622 and driven sprocket 623 in a ring shape that matches the annular guide rail 40. The transmission chain 621 meshes with both the drive sprocket 622 and driven sprocket 623, and also meshes with sprocket 535. Specifically, the transmission chain 621 is a double-layer chain structure arranged parallel to each other. The sprocket 535 meshes with the outer side of the upper chain of the transmission chain 621, while the drive sprocket 622 and driven sprocket 623 mesh with the inner side of the lower chain of the transmission chain 621. The double-layer chain design prevents the sprocket 535 from colliding with the drive sprocket 622 or driven sprocket 623 when the moving device 50 moves to the position of the drive sprocket 622 or driven sprocket 623, thus preventing malfunction.

[0050] Furthermore, please refer to the following: Figure 2 , Figure 5 and Figure 6 The mounting bracket 11 is also provided with a guide 624 sleeved on the outside of the transmission chain 621. Specifically, the guide 624 is provided on the straight part of the transmission chain 621 to further limit the position of the transmission chain 621.

[0051] Furthermore, please refer to the following: Figure 2 , Figure 4 The mounting bracket 11 is also equipped with a sensor 80 for sensing the position of the movable device 50. The number of sensors 80 can be one or more. The sensors 80 can be infrared sensors, distance sensors, etc., and are not limited here. By setting up the sensors 80, the position of the movable device 50 can be accurately sensed, thereby realizing functions such as counting and positioning.

[0052] Further, please see Figure 1 The bottom of the frame 10 is provided with feet 12.

[0053] The specific working process of the annular conveyor line in this embodiment of the invention is as follows: When the annular conveyor line is powered on, the drive module 61 rotates to drive the drive sprocket 622 to rotate. Since the drive sprocket 622 and the transmission chain 621 are engaged, the drive sprocket 622 drives the driven sprocket 623 to move together through the transmission chain 621. The drive sprocket 622 drives the sprocket 535 to move together by engaging and locking with the sprocket 535, thereby driving the movable device 50 to move along the annular guide rail 40. The magnetic attraction of the first magnet 32 ​​and the second magnet 52 drives the carrier 30 and the conveyed object 200 placed on the carrier 30 to move. When a stop is required, the blocking module 70 rises to abut against the unlocking guide rod 532. Since the movable device 50 has forward motion power transmitted by the transmission module 62, the unlocking guide rod 532 generates a backward relative force, causing it to slide backward and abut against the pawl 533. This causes the pawl 533 to rotate outward, disengaging from the ratchet 534. The sprocket 535 then idles and stops moving along the annular guide rail 40, thereby stopping the movable device 50 and the carrier 30 from moving along the annular guide rail 40. When the blocking module 70 descends, the unlocking guide rod 532 returns to its original position, and the pawl 533 re-engages with the ratchet 534, locking them in place. The movable device 50 continues to move forward, driving the carrier 30 to continue moving.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above embodiments merely illustrate preferred implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A circular conveyor line, characterized in that, include: A frame, wherein a mounting bracket is provided within the frame; A conveyor platform fixedly mounted on the frame; A carrier disposed on the conveying platform, the carrier including a carrier body and a first magnet embedded in the bottom of the carrier body; An annular guide rail is fixedly mounted on the mounting frame, and the annular guide rail is arranged parallel to the conveying platform; A movable device disposed on the annular guide rail, the movable device comprising a main body and a second magnet embedded in the top of the main body and used for magnetic attraction with the first magnet; A drive device for driving the movable device to move on the annular guide rail, the drive device being located below the annular guide rail, the drive device including a drive module fixedly mounted on the mounting bracket and a transmission module connected to the drive module, the transmission module being connected to the movable device; When the drive module is powered on, it drives the transmission module to move. The transmission module drives the movable device to move along the annular guide rail. The magnetic attraction of the first magnet and the second magnet drives the carrier to move together with the movable device on the conveying platform. The main body includes a first fixing block disposed between the conveying platform and the annular guide rail, a second fixing block disposed between the annular guide rail and the transmission module, and a connecting block for connecting the first fixing block and the second fixing block, wherein the second magnet is embedded in the top of the first fixing block; The movable device further includes a clutch module located at the bottom of the main body. The clutch module includes a mounting part fixed to the bottom of the second fixed block, a pawl movably mounted on the mounting part, a bearing assembly fixed to the bottom of the second fixed block, and a ratchet and a sprocket sleeved around the bearing assembly. The ratchet and the sprocket are fixedly connected, and the sprocket is engaged with the transmission module. When the ratchet and the pawl are engaged, the sprocket and the transmission module move together along the annular guide rail, thereby driving the movable device to move along the annular guide rail, and the carrier to move on the conveying platform. When the ratchet and the pawl are disengaged, the sprocket idles and stops moving along the annular guide rail, thereby stopping the movable device and the carrier from moving along the annular guide rail. The mounting bracket is also equipped with a sensor for sensing the position of the active device.

2. The circular conveyor line according to claim 1, characterized in that, The first fixed block is provided with a plurality of first rollers, which are in contact with the upper surface of the annular guide rail. The second fixed block is provided with a plurality of second rollers, which are in contact with the lower surface of the annular guide rail. The movable device slides on the annular guide rail by means of the first rollers and the second rollers.

3. The circular conveyor line according to claim 1, characterized in that, The bottom of the first fixed block is provided with a guide wheel for restricting the movement of the movable device along the annular guide rail. The upper surface of the annular guide rail is recessed inward to form a guide groove. When the movable device moves on the annular guide rail, the guide wheel rolls in the guide groove.

4. The circular conveyor line according to claim 1, characterized in that, Multiple movable devices are provided, and the second fixed block is also provided with anti-collision blocks to prevent two adjacent movable devices from colliding directly.

5. The circular conveyor line according to claim 1, characterized in that, The clutch module also includes an unlocking guide rod movably mounted on the mounting part. The mounting bracket is also provided with a blocking module. When the blocking module moves to abut against the unlocking guide rod, the unlocking guide rod pushes the pawl to disengage the pawl from the ratchet. The sprocket spins freely and stops moving along the annular guide rail, thereby stopping the moving device and the carrier from moving along the annular guide rail.

6. The circular conveyor line according to claim 1, characterized in that, The bearing assembly includes a connecting rod fixedly disposed at the bottom of the second fixing block, a first bearing and a second bearing sleeved on the connecting rod, a sprocket sleeved on the outside of the first bearing, and a ratchet sleeved on the outside of the second bearing.

7. The circular conveyor line according to claim 1, characterized in that, The transmission module includes a transmission chain, a driving sprocket and a driven sprocket respectively located on both sides of the mounting frame. The driving sprocket is connected to the drive module. The driving sprocket and the driven sprocket are respectively engaged with the transmission chain. The transmission chain is also engaged with the sprocket. The drive module drives the driving sprocket to rotate. The driving sprocket drives the driven sprocket to move through the transmission chain, thereby causing the sprocket to move together so that the movable device moves along the annular guide rail, and thus drives the carrier to move on the conveying platform.

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