Turnover device

Abstract

The utility model discloses a turnover device, which belongs to the technical field of industrial automation equipment and comprises a support frame, a turnover mechanism and a conveying mechanism, the turnover mechanism comprises a first driver, a turnover shaft and a turntable with a clamping groove, the first driver, the turnover shaft and the turntable are mounted on the support frame, the turnover shaft is connected with the first driver, and the first driver is connected with the conveying mechanism. The rotating disc is fixedly arranged on the overturning shaft in a sleeving manner; the conveying mechanism comprises a second driver installed on the supporting frame, two driving wheels installed on the supporting frame and two driven wheels installed on the supporting frame. The first annular belt is arranged around one driving wheel and one driven wheel, the second annular belt is arranged around the other driving wheel and the other driven wheel, the two driving wheels are connected with the second driver, and the rotating disc is located between the first annular belt and the second annular belt. The technical effects that the placing efficiency can be improved, and the labor cost can be reduced are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of industrial automation equipment technology, and specifically relates to a flipping device. Background Technology

[0002] In product processing production lines, stamped products typically need to be transferred to blister trays or receiving trays via manual placement. This process involves equipment such as punch presses, molds, receiving trays, and manual workbenches. Operators must manually remove products from the receiving trays and then place them one by one into designated locations. However, manual operation is inefficient, difficult to meet the demands of large-scale production, and requires significant labor costs. Furthermore, relying on operator experience for placement results in poor accuracy and is prone to errors.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is the problem of low placement efficiency and high cost.

[0005] To solve the above-mentioned technical problems, this utility model provides a flipping device, which includes a support frame, a flipping mechanism, and a conveying mechanism. The flipping mechanism includes a first driver mounted on the support frame, a flipping shaft, and a turntable with a slot. The flipping shaft is connected to the first driver, and the turntable is fixedly sleeved on the flipping shaft. The conveying mechanism includes a second driver mounted on the support frame, two driving wheels respectively mounted on the support frame, two driven wheels respectively mounted on the support frame, a first annular belt surrounding one driving wheel and one driven wheel, and a second annular belt surrounding the other driving wheel and the other driven wheel. The two driving wheels are respectively connected to the second driver, and the turntable is located between the first annular belt and the second annular belt. When the second driver drives the two driving wheels to respectively drive the first annular belt and the second annular belt to convey the product to the slot, the first driver drives the flipping shaft to drive the turntable to flip the product from a first station to a second station. The first station is located between the second station and the driven wheel.

[0006] Optionally, the flipping device further includes an incoming material sensor disposed at the first workstation and installed on the support frame. The incoming material sensor is connected to the first driver. When the incoming material sensor detects that the product is located at the first workstation, the incoming material sensor triggers the first driver to drive the flipping shaft to drive the turntable to flip the product from the first workstation to the second workstation.

[0007] Optionally, the flipping device further includes a material picking sensor disposed at the second workstation and installed on the support frame. The material picking sensor is connected to the second driver. When the material picking sensor detects that the product is located at the second workstation, the material picking sensor triggers the action of the conveying module, which is used to pick up the product.

[0008] Optionally, the flipping mechanism further includes two first limiting posts located on both sides of the turntable and connected to the support frame. One end of the flipping shaft is connected to the first driver, and the other end of the flipping shaft passes through one of the first limiting posts, the turntable, and the other first limiting post in sequence.

[0009] Optionally, there are multiple card slots, and the multiple card slots are arranged at equal intervals along the circumference of the turntable.

[0010] Optionally, the opening direction of the slot is consistent with the radial direction of the turntable, and the conveying planes of the first annular belt and the second annular belt are flush with the opening of the slot.

[0011] Optionally, the conveying mechanism further includes two second limiting posts connected to the support frame, and a conveying shaft passing through the two second limiting posts and fixedly connected to the two driving wheels. The two driving wheels are located between the two second limiting posts, and the conveying shaft is connected to the second driver.

[0012] Optionally, the conveying mechanism further includes two support plates respectively connected to the support frame, a limiting plate respectively connected to the two support plates, and a limiting wheel connected to the limiting plate. The first annular belt is located between the second annular belt and the two support plates. The first annular belt includes an upper belt segment and a lower belt segment. The bottom of the limiting wheel makes rolling contact with the upper belt segment.

[0013] Optionally, the conveying mechanism further includes two pulleys respectively connected to the limiting plate, the limiting wheel being located between the two pulleys, and the distance between the two pulleys and the lower belt segment being equal.

[0014] Optionally, the distance between the limiting wheel and the lower belt segment is smaller than the distance between the pulley and the lower belt segment, and the upper belt segment makes rolling contact with the top of the pulley and the bottom of the limiting wheel in sequence.

[0015] Beneficial effects:

[0016] This invention provides a flipping device. In the flipping mechanism, a first driver is mounted on a support frame and connected to a flipping shaft. A turntable with a slot is fixedly sleeved on the flipping shaft. In the conveying mechanism, a second driver is mounted on the support frame. Two driving wheels are respectively mounted on the support frame and connected to the second driver. Two driven wheels are respectively mounted on the support frame. A first annular belt surrounds one driving wheel and one driven wheel, and a second annular belt surrounds the other driving wheel and the other driven wheel. The turntable is located between the first and second annular belts. When the second driver drives the two driving wheels to respectively drive the first and second annular belts to convey the product to the slot, the first driver drives the flipping shaft to drive the turntable to flip the product from a first station to a second station. The first station is located between the second station and the driven wheel. Thus, when the second driver drives the driving wheels to respectively drive the first and second annular belts, the product on the first and second annular belts is synchronously moved towards the slot until the product is conveyed into the slot. At this point, the first driver activates, driving the rotating shaft to rotate the turntable. The slots and product shapes are matched, and the rotating turntable flips the product within the slots, enabling the transfer of products from the first station to the second station without manual intervention. This reduces the number of operators required and facilitates continuous industrial automation. Ultimately, this achieves the technical benefits of improved placement efficiency and reduced labor costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a flipping device provided in an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the conveying mechanism in a flipping device provided in an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the upper belt segment and the lower belt segment in a flipping device provided in an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the turntable in a flipping device provided in an embodiment of the present utility model.

[0022] The meanings of the labels in the attached diagram are as follows:

[0023] 1—Support frame, 2—Tilting mechanism, 21—First driver, 22—Tilting shaft, 23—Turntable, 231—Slot, 232—Opening, 3—Conveying mechanism, 31—Second driver, 32—Driving wheel, 33—Driven wheel, 34—First annular belt, 341—Upper belt segment, 342—Lower belt segment, 35—Second annular belt, 36—First station, 37—Second station, 38—Pulley, 4—Incoming material sensor, 5—Removing material sensor, 6—First limiting post, 7—Second limiting post, 71—Conveying shaft, 8—Support plate, 81—Limiting plate, 82—Limiting wheel, 9—Product. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] To enable those skilled in the art to better understand the solutions of this application, 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0027] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0028] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.

[0029] This utility model provides a flipping device, please refer to [link to relevant documentation]. Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the structure of a flipping device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the conveying mechanism 3 in a flipping device provided in an embodiment of this utility model. Figure 3 This is a schematic diagram of the structure of the upper belt segment 341 and the lower belt segment 342 in a flipping device provided in an embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of the turntable 23 in a flipping device provided in an embodiment of the present invention. The flipping device provided in this embodiment of the present invention includes a support frame 1, a flipping mechanism 2, and a conveying mechanism 3. In the flipping mechanism 2, a first driver 21 is mounted on the support frame 1, and a flipping shaft 22 is connected to the first driver 21. A turntable 23 with a slot 231 is fixedly sleeved on the flipping shaft 22. In the conveying mechanism 3, a second driver 31 is mounted on the support frame 1, two driving wheels 32 are respectively mounted on the support frame 1 and respectively connected to the second driver 31, two driven wheels 33 are respectively mounted on the support frame 1, and a first annular belt 34 surrounds the turntable 23. A drive wheel 32 and a driven wheel 33 are arranged, and a second annular belt 35 is arranged around another drive wheel 32 and another driven wheel 33. The turntable 23 is located between the first annular belt 34 and the second annular belt 35. When the second driver 31 drives the two drive wheels 32 to drive the first annular belt 34 and the second annular belt 35 to transport the product 9 to the slot 231, the first driver 21 drives the flipping shaft 22 to drive the turntable 23 to flip the product 9 from the first station 36 to the second station 37. The first station 36 is arranged between the second station 37 and the driven wheel 33.

[0030] The support frame 1 is configured to provide support for the flipping mechanism 2 and the conveying mechanism 3 respectively. The shape of the slot 231 matches the shape of the product 9. The first driver 21 includes a motor or a cylinder. The first driver 21 is connected to the flipping shaft 22. For example, it is sleeved on the drive shaft of the motor and the flipping shaft 22 respectively by an annular belt. The rotation of the drive shaft of the motor drives the annular belt to rotate. The rotating annular belt drives the flipping shaft 22 and the turntable 23 connected to the flipping shaft 22 to rotate.

[0031] The second driver 31 includes a motor or a cylinder. The second driver 31 is connected to two drive wheels 32 respectively. For example, it is mounted on the drive shaft of the motor and the conveying shaft 71 connected to the drive wheels 32 via an annular belt. The rotation of the drive shaft of the motor drives the annular belt to rotate, and the rotating annular belt drives the conveying shaft 71 and the drive wheel 32 connected to the conveying shaft 71 to rotate.

[0032] The first station 36 has space to accommodate the product 9 and is directly opposite the card slot 231 away from the second driver 31. The second station 37 has space to accommodate the product 9 and is directly opposite the card slot 231 near the second driver 31.

[0033] The inner wall of the slot 231 can be provided with a polytetrafluoroethylene wear-resistant liner, and a chamfered guide structure can be provided at the opening 232 of the slot 231. The chamfered guide structure can also be a rounded transition angle, so that there is no stress concentration during the process of driving the product 9.

[0034] In this embodiment, the first driver 21 of the flipping mechanism 2 is mounted on the support frame 1 and connected to the flipping shaft 22. The turntable 23 with a slot 231 is fixedly sleeved on the flipping shaft 22. The second driver 31 of the conveying mechanism 3 is mounted on the support frame 1. Two driving wheels 32 are respectively mounted on the support frame 1 and connected to the second driver 31. Two driven wheels 33 are respectively mounted on the support frame 1. A first annular belt 34 is arranged around one driving wheel 32 and one driven wheel 33. A second annular belt 35 is arranged around another driving wheel 32 and another driven wheel 33. The turntable 23 is located between the first annular belt 34 and the second annular belt 35. When the second driver 31 drives the two driving wheels 32 to drive the first annular belt 34 and the second annular belt 35 to convey the product 9 to the slot 231, the first driver 21 drives the flipping shaft 22 to drive the turntable 23 to flip the product 9 from the first station 36 to the second station 37. The first station 36 is located between the second station 37 and the driven wheel 33. When the second driver 31 drives the drive wheel 32 to drive the first annular belt 34 and the second annular belt 35 respectively, the product 9 located on the first annular belt 34 and the second annular belt 35 will be moved synchronously towards the slot 231 until the product 9 is conveyed into the slot 231. At this time, the first driver 21 is activated, driving the flip shaft 22 to drive the turntable 23 to perform rotation. The shape of the slot 231 and the product 9 are matched, and the rotating turntable 23 can cause the product 9 located in the slot 231 to flip, realizing the transfer of product 9 from the first station 36 to the second station 37 without manual intervention, while reducing the number of operators required, which is conducive to continuous industrial automation. Thus, it achieves the technical effect of improving placement efficiency and reducing labor costs.

[0035] As one embodiment, the flipping device provided in this utility model also includes an incoming material sensor 4. The incoming material sensor 4 is disposed at the first station 36 and mounted on the support frame 1. The incoming material sensor 4 is connected to the first driver 21. When the incoming material sensor 4 detects that the product 9 is located at the first station 36, the incoming material sensor 4 triggers the first driver 21 to drive the flipping shaft 22 to drive the turntable 23 to flip the product 9 from the first station 36 to the second station 37. The incoming material sensor 4 can be a laser sensor or a photoelectric sensor. The laser sensor is used to determine whether there is a product 9 at the first station 36. That is, after the incoming material sensor 4 is electrically connected to the first driver 21, when the product 9 is conveyed to the first station 36 through the first annular belt 34 and the second annular belt 35, the incoming material sensor 4 detects the position status of the product 9 in real time. If the product 9 is detected to have arrived at the first station 36, the incoming material sensor 4 immediately sends a trigger signal to the first driver 21. The first driver 21 responds to a signal to drive the rotating shaft 22 to rotate, causing the turntable 23 to perform a flipping action, transferring the product 9 from the first station 36 to the second station 37. Through the automatic detection and triggering mechanism of the incoming material sensor 4, the flipping action can be started and stopped precisely, avoiding manual intervention.

[0036] As one embodiment, the flipping device provided in this utility model embodiment further includes a material handling sensor 5. The material handling sensor 5 is disposed at the second workstation 37 and mounted on the support frame 1. The material handling sensor 5 is connected to the second driver 31. When the material handling sensor 5 detects that the product 9 is located at the second workstation 37, the material handling sensor 5 triggers the action of the conveying module, which is used to pick up the product 9. The material handling sensor 5 can be a laser sensor or a photoelectric sensor. The laser sensor is used to determine whether there is a product 9 at the second workstation 37. Those skilled in the art will understand that the specific structure of the conveying module in the flipping device provided in this utility model embodiment is not limited. It is only necessary to realize that the product 9 that has reached the second workstation 37 can be picked up by the conveying module. For example, the conveying module can be a robotic arm. The pick-up sensor 5 is electrically connected to the second driver 31 and the conveying module. When the turntable 23 flips the product 9 to the second station 37, the pick-up sensor 5 monitors in real time whether the product 9 is in place. If the product 9 is detected to be in the second station 37, the pick-up sensor 5 triggers the second driver 31 to stop running and simultaneously sends a pick-up command to the conveying module. The conveying module then performs an automated pick-up operation on the product 9 at the second station 37 according to the command. This coordinated control of the pick-up sensor 5 and the conveying module improves the timeliness and accuracy of the pick-up action.

[0037] In one embodiment, the flipping mechanism 2 of the flipping device provided by this utility model further includes two first limiting posts 6, which are respectively located on both sides of the turntable 23 and are respectively connected to the support frame 1. One end of the flipping shaft 22 is connected to the first driver 21, and the other end of the flipping shaft 22 passes through one first limiting post 6, the turntable 23, and the other first limiting post 6 in sequence. That is, a bearing structure matching the flipping shaft 22 can be provided on the inner side of the first limiting post 6, so that the flipping shaft 22 is always radially constrained during rotation, avoiding the turntable 23 from shifting due to uneven force. The limiting effect of the first limiting post 6 helps to improve the stability of the flipping shaft 22 during rotation, enabling the turntable 23 to be accurately positioned during the flipping of the product 9.

[0038] In one implementation, there are multiple slots 231, arranged at equal intervals along the circumference of the turntable 23. After the first driver 21 is activated, the turntable 23 rotates by a fixed angle, flipping the product 9 in one slot 231 from the first station 36 to the second station 37, while the next slot 231 simultaneously receives the new product 9 from the conveying mechanism 3. The equal-interval arrangement of multiple slots 231 facilitates the continuous receiving and flipping of the product 9, improving the flipping efficiency per unit time.

[0039] In one implementation, the opening 232 of the slot 231 is aligned with the radial direction of the turntable 23, and the conveying planes of the first annular belt 34 and the second annular belt 35 are flush with the opening 232 of the slot 231. When the product 9 is conveyed to the opening 232 of the slot 231, the bottom surface of the product 9 is at the same horizontal level as the conveying plane of the annular belt, allowing the product 9 to smoothly transition into the slot 231 and avoiding jamming or displacement due to height differences. By aligning the opening 232 of the slot 231 with the conveying plane, the smoothness of the product 9 entering the slot 231 can be optimized, and the continuity and reliability of the flipping process can be improved.

[0040] In one embodiment, the conveying mechanism 3 of the flipping device provided by this utility model further includes a conveying shaft 71 and two second limiting posts 7. The two second limiting posts 7 are connected to the support frame 1, and the two driving wheels 32 are located between the two second limiting posts 7. The conveying shaft 71 passes through the two second limiting posts 7 and is fixedly connected to the two driving wheels 32. The conveying shaft 71 is also connected to the second driver 31. When the second driver 31 drives the conveying shaft 71 to rotate, the two driving wheels 32 will rotate synchronously, driving the first annular belt 34 and the second annular belt 35 to run. By limiting the axial movement of the conveying shaft 71 through the second limiting posts 7, the deviation of the driving wheels 32 due to uneven force can be avoided, improving the stability of the conveying direction of the annular belt, so that the product 9 is synchronously conveyed into the slot 231 of the turntable 23.

[0041] In one embodiment, the conveying mechanism 3 of the flipping device provided by this utility model further includes a limiting wheel 82 and two support plates 8. The two support plates 8 are respectively connected to the support frame 1, and the limiting plate 81 is respectively connected to the two support plates 8. The first annular belt 34 is located between the second annular belt 35 and the two support plates 8. The limiting wheel 82 is connected to the limiting plate 81. The first annular belt 34 includes an upper belt segment 341 and a lower belt segment 342. The bottom of the limiting wheel 82 makes rolling contact with the upper belt segment 341. When the first annular belt 34 is running, the limiting wheel 82 applies a downward constraint force to the upper belt segment 341 through rolling contact, preventing the belt from sagging or deviating due to load or inertia. At the same time, the lower belt segment 342 of the first annular belt 34 keeps synchronously conveyed with the second annular belt 35, so that the product 9 can smoothly enter the slot 231. Through the dynamic constraint of the limiting wheel 82 and the upper belt segment 341, the straightness of the annular belt is improved, and the positional deviation of the product 9 during the conveying process can be reduced.

[0042] As one embodiment, the conveying mechanism 3 in the flipping device provided by this utility model further includes two pulleys 38, which are respectively connected to the limiting plate 81. The limiting wheel 82 is located between the two pulleys 38, and the distance between the two pulleys 38 and the lower belt segment 342 is equal. When the first annular belt 34 is running, the lower belt segment 342 maintains horizontal movement under the constraint of the equal distance between the two pulleys 38, which can avoid local vibration caused by uneven belt tension. At the same time, the synergistic effect of the limiting wheel 82 and the pulleys 38 causes the upper belt segment 341 to roll through the top of the pulley 38 to the bottom of the limiting wheel 82, while the lower belt segment 342 maintains a stable conveying plane due to the limitation of the distance between the pulleys 38. This helps to reduce the vibration of the annular belt during operation, so that the product 9 is always aligned with the opening 232 of the slot 231 during the conveying process. Since the second annular belt 35 has the same structure and principle as the first annular belt 34, the second annular belt 35 will not be described in detail here.

[0043] In one implementation, the distance between the limiting wheel 82 and the lower belt segment 342 is smaller than the distance between the pulley 38 and the lower belt segment 342. The upper belt segment 341 rolls in contact with the top of the pulley 38 and the bottom of the limiting wheel 82 in sequence. When the first annular belt 34 is running, the upper belt segment 341 forms a smooth transition section under the lifting action of the top of the pulley 38, and is then pressed down at the bottom of the limiting wheel 82. The lower belt segment 342 is more constrained due to the smaller distance between the limiting wheels 82. Through differentiated distance control, the stability of the first annular belt 34 in the area near the slot 231 can be enhanced, avoiding deviation caused by belt vibration before the product 9 enters the slot 231. By precisely constraining the conveying path, the success rate of docking between the product 9 and the slot 231 is improved.

[0044] 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.

[0045] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A turnover device, characterized in that The flipping device includes a support frame, a flipping mechanism, and a conveying mechanism. The flipping mechanism includes a first driver mounted on the support frame, a flipping shaft, and a turntable with a slot. The flipping shaft is connected to the first driver, and the turntable is fixedly sleeved on the flipping shaft. The conveying mechanism includes a second driver mounted on the support frame, two driving wheels respectively mounted on the support frame, two driven wheels respectively mounted on the support frame, a first annular belt surrounding one driving wheel and one driven wheel, and a second annular belt surrounding the other driving wheel and the other driven wheel. The two driving wheels are respectively connected to the second driver, and the turntable is located between the first annular belt and the second annular belt. When the second driver drives the two driving wheels to respectively drive the first annular belt and the second annular belt to convey the product to the slot, the first driver drives the flipping shaft to drive the turntable to flip the product from the first station to the second station. The first station is located between the second station and the driven wheel.

2. The turnover device according to claim 1, characterized in that The flipping device further includes an incoming material sensor disposed at the first workstation and installed on the support frame. The incoming material sensor is connected to the first driver. When the incoming material sensor detects that the product is located at the first workstation, the incoming material sensor triggers the first driver to drive the flipping shaft to drive the turntable to flip the product from the first workstation to the second workstation.

3. The turnover device according to claim 1, characterized in that The flipping device also includes a material picking sensor disposed at the second workstation and installed on the support frame. The material picking sensor is connected to the second driver. When the material picking sensor detects that the product is located at the second workstation, the material picking sensor triggers the action of the conveying module, which is used to pick up the product.

4. The turnover device according to claim 1, characterized in that The flipping mechanism also includes two first limiting posts located on both sides of the turntable and connected to the support frame. One end of the flipping shaft is connected to the first driver, and the other end of the flipping shaft passes through one of the first limiting posts, the turntable, and the other first limiting post in sequence.

5. The turnover device according to claim 1, wherein The number of slots is multiple, and the multiple slots are arranged at equal intervals along the circumference of the turntable.

6. The turnover device according to claim 5, characterized in that The opening direction of the slot is consistent with the radial direction of the turntable, and the conveying planes of the first annular belt and the second annular belt are flush with the opening of the slot.

7. The turnover device of claim 1, wherein The conveying mechanism further includes two second limiting posts connected to the support frame, and a conveying shaft passing through the two second limiting posts and fixedly connected to the two driving wheels. The two driving wheels are located between the two second limiting posts, and the conveying shaft is connected to the second driver.

8. The turnover device of claim 1, wherein The conveying mechanism further includes two support plates connected to the support frame, a limiting plate connected to the two support plates, and a limiting wheel connected to the limiting plate. The first annular belt is located between the second annular belt and the two support plates. The first annular belt includes an upper belt segment and a lower belt segment. The bottom of the limiting wheel makes rolling contact with the upper belt segment.

9. The turnover device according to claim 8, characterized in that The conveying mechanism further comprises two pulleys connected with the limiting plates respectively, and the limiting wheel is located between the two pulleys, and the distance between the two pulleys and the lower belt section is equal.

10. The turnover device according to claim 9, characterized in that The distance between the limiting wheel and the lower belt section is less than the distance between the pulleys and the lower belt section, and the upper belt section sequentially rolls in contact with the top of the pulleys and the bottom of the limiting wheel.

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