A sorting mechanism

Abstract

The utility model belongs to product classification technical field discloses a kind of sorting mechanism. The sorting mechanism includes fixed frame and drive assembly, and transmission module is arranged on the fixed frame, the transmission module includes two groups of transmission components, and the transmission component includes two transmission wheels and the transmission belt of being sleeved in two transmission wheels, transmission channel is formed between two groups of transmission components, and the product of plate shape is transmitted in the transmission channel, and two groups of transmission components are slidably arranged in the fixed frame along the direction perpendicular to the transmission channel to adjust the distance between two transmission belts;The drive assembly drives the fixed frame to rotate. The sorting mechanism can automatically adjust the height of transmission channel according to the model of product, and the product will not be damaged due to the adjustment not in time, which greatly reduces the working strength of operator, reduces the labor cost, and improves the applicability.

Description

Technical Field

[0001] This utility model relates to the field of product classification technology, and in particular to a sorting mechanism. Background Technology

[0002] Circuit boards, also known as printed circuit boards, have made circuits more miniaturized and intuitive. They play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. They also serve as supports for electronic components and carriers for electrical connections between electronic components.

[0003] In the circuit board manufacturing process, a sorting mechanism needs to be set up at the end of the production line to receive circuit boards and, as needed, flip them over. Finally, the circuit boards are transferred to the corresponding shelves according to their model. However, existing sorting mechanisms require operators to adjust them according to the size of the circuit boards. After each adjustment, the sorting mechanism can only accept circuit boards of one or a few thicknesses, leading to frequent adjustments by operators. Untimely adjustments can easily damage the circuit boards, resulting in high labor costs and poor applicability. Utility Model Content

[0004] The purpose of this invention is to provide a sorting mechanism that can automatically adjust the height of the transmission channel according to the product model, preventing product damage due to untimely adjustment, greatly reducing the workload of operators, lowering labor costs, and improving applicability.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A sorting mechanism, comprising:

[0007] A fixed frame is provided with a transmission module. The transmission module includes two sets of transmission components. Each transmission component includes two transmission wheels and a transmission belt sleeved on the two transmission wheels. A transmission channel is formed between the two sets of transmission components. The transmission channel transmits plate-shaped products. The two sets of transmission components are slidably disposed on the fixed frame in a direction perpendicular to the transmission channel to adjust the distance between the two transmission belts.

[0008] A drive assembly that drives the fixed frame to rotate.

[0009] Preferably, the transmission module further includes a fixed base and a first slide rail, the first slide rail being disposed on the fixed base, the transmission component including a connected slide plate and a slider, two transmission wheels being rotatably disposed on the slide plate, and the slider being slidably disposed on the first slide rail.

[0010] Preferably, the transmission module further includes an adjustment drive, which includes two drive shafts that extend and retract in opposite directions, one drive shaft being connected to one of the slide plates and the other drive shaft being connected to another slide plate.

[0011] Preferably, the drive shaft is connected to a drive block, the slide plate has a drive slot, and the drive block is inserted into the drive slot to drive the slide plate to move.

[0012] Preferably, the inner wall of the drive groove is provided with a fixing groove, and a fixing elastic member is provided in the fixing groove. The fixing elastic member elastically abuts against the drive block and presses the drive block against the inner wall of the drive groove.

[0013] Preferably, the two sets of transmission components are close to each other, with the two transmission wheels of one set of transmission components abutting against the two transmission wheels of the other set of transmission components to close both ends of the transmission channel.

[0014] Preferably, the transmission assembly further includes a plurality of tensioning rollers, all of which abut against the transmission belt, and at least one of the tensioning rollers is movable to tension the transmission belt.

[0015] Preferably, the sorting mechanism includes two sets of the transmission modules, and at least one set of the transmission modules is slidably disposed on the fixed frame so that the distance between the two sets of the transmission modules is adjustable.

[0016] Preferably, a lead screw is rotatably mounted on the fixed frame, and a set of the transmission modules is slidably mounted on the fixed frame and threadedly connected to the lead screw.

[0017] Preferably, the sorting mechanism further includes a lifting assembly, which includes two lifting drive wheels and a lifting transmission belt sleeved on the two lifting drive wheels, and the fixed frame is fixedly connected to the lifting transmission belt.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides a sorting mechanism. In this mechanism, a fixed frame fixes and supports a transmission module. A transmission channel is formed between two sets of transmission components of the transmission module, and the two sets of transmission components can slide along a direction perpendicular to the transmission channel to adjust the distance between the two transmission belts, allowing the transmission channel to accommodate different types of plate-shaped products. Plate-shaped products can enter the transmission channel from one end. The sorting mechanism can choose whether to use a drive component to rotate the fixed frame to flip the product, and then the sorting mechanism can move to the shelf position corresponding to that product type and drive the product from one end of the transmission channel into the corresponding shelf.

[0020] This sorting mechanism can automatically adjust the height of the transmission channel according to the product model, preventing product damage due to untimely adjustments, greatly reducing the workload of operators, lowering labor costs, and improving applicability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the sorting mechanism described in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the transmission module described in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the adjustment drive component described in an embodiment of this utility model.

[0024] In the picture:

[0025] 1. Fixed frame; 11. Frame; 12. Lifting component; 13. Rotating shaft; 14. Tilting driven wheel; 15. Inlet / outlet;

[0026] 2. Transmission module; 21. Transmission component; 211. Transmission wheel; 212. Transmission belt; 2121. Transmission section; 213. Slide plate; 2131. Drive groove; 214. Slider; 22. Transmission channel; 23. Fixing base; 24. First slide rail; 25. Adjustment drive component; 251. Drive shaft; 252. Drive block; 253. Fixing elastic component; 26. Tensioning wheel; 27. Transmission drive component; 28. Transmission drive wheel; 29. ​​Pressure wheel;

[0027] 3. Drive assembly; 31. Tilting motor; 32. Tilting drive wheel; 33. Tilting transmission belt;

[0028] 41. Distance adjustment motor; 42. Lead screw;

[0029] 5. Lifting assembly; 51. Lifting drive wheel; 52. Lifting transmission belt; 53. Lifting drive motor. Detailed Implementation

[0030] The embodiments of this utility model 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 parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] In the circuit board manufacturing process, a sorting mechanism needs to be set up at the end of the production line to receive circuit boards and, as needed, flip them over. Finally, the circuit boards are transferred to the corresponding shelves according to their model. However, existing sorting mechanisms require operators to adjust them according to the size of the circuit boards. After each adjustment, the sorting mechanism can only accept circuit boards of one or a few thicknesses, leading to frequent adjustments by operators. Untimely adjustments can easily damage the circuit boards, resulting in high labor costs and poor applicability.

[0035] To solve the above problems, this utility model provides a sorting mechanism, such as... Figure 1 and Figure 2 As shown, the sorting mechanism includes a fixed frame 1 and a drive assembly 3. A transmission module 2 is mounted on the fixed frame 1. The transmission module 2 includes two sets of transmission components 21. Each transmission component 21 includes two transmission wheels 211 and a transmission belt 212 sleeved on the two transmission wheels 211. A transmission channel 22 is formed between the two sets of transmission components 21. The transmission channel 22 transmits plate-shaped products. The two sets of transmission components 21 are slidably mounted on the fixed frame 1 in a direction perpendicular to the transmission channel 22 to adjust the distance between the two transmission belts 212. The drive assembly 3 drives the fixed frame 1 to rotate.

[0036] In this sorting mechanism, the fixed frame 1 fixes and supports the transmission module 2. A transmission channel 22 is formed between the two sets of transmission components 21 of the transmission module 2, and the two sets of transmission components 21 can slide along a direction perpendicular to the transmission channel 22 to adjust the distance between the two transmission belts 212, so that the transmission channel 22 can accommodate different models of plate-shaped products. Plate-shaped products can enter the transmission channel 22 from one end. The sorting mechanism can choose whether to drive the fixed frame 1 to rotate and flip the product by the drive component 3 as needed. Then, the sorting mechanism can move to the shelf position corresponding to the product model and drive the product from one end of the transmission channel 22 into the corresponding shelf.

[0037] The sorting mechanism can automatically adjust the height of the transmission channel 22 according to the product model, which will not cause product damage due to untimely adjustment, greatly reducing the workload of operators, reducing labor costs, and improving applicability.

[0038] In this embodiment, the plate-shaped product is illustrated using a circuit board as an example.

[0039] like Figure 1 As shown, to facilitate the sorting mechanism in moving the circuit boards to the corresponding shelf height, the sorting mechanism also includes a lifting assembly 5. The lifting assembly 5 includes two lifting drive wheels 51 and a lifting transmission belt 52 sleeved on the two lifting drive wheels 51. The fixed frame 1 is fixedly connected to the lifting transmission belt 52. When the circuit board enters the transmission channel 22, the drive assembly 3 can either drive the fixed frame 1 to rotate to flip the circuit board, or it can choose to keep the fixed frame 1 in its original position. Then, the lifting assembly 5 drives the fixed frame 1 to rise and fall, so that the transmission channel 22 aligns with the corresponding shelf. The transmission belt 212 rotates to transfer the circuit board from the transmission channel 22 to the shelf.

[0040] Specifically, the lifting assembly 5 also includes a lifting drive motor 53, the fixed frame 1 includes a frame 11 and a lifting component 12, the frame 11 and the lifting component 12 are rotatably connected by a rotating shaft 13, the lifting component 12 is fixedly connected to the lifting transmission belt 52, the lifting drive motor 53 is connected to one of the lifting drive wheels 51, the lifting drive motor 53 drives the lifting drive wheel 51 to rotate, thereby driving the lifting transmission belt 52 to rotate, so as to drive the frame 11 to lift through the lifting component 12.

[0041] It is worth noting that, in order to prevent slippage between the lifting drive wheel 51 and the lifting transmission belt 52, which would prevent the fixed frame 1 from being raised or lowered to the appropriate position, the lifting drive wheel 51 is a synchronous wheel and the lifting transmission belt 52 is a synchronous belt.

[0042] like Figure 2As shown, in this embodiment, the transmission module 2 further includes a fixed base 23 and a first slide rail 24. The first slide rail 24 is disposed on the fixed base 23. The transmission component 21 includes a connected slide plate 213 and a slider 214. Two transmission wheels 211 are rotatably disposed on the slide plate 213, and the slider 214 is slidably disposed on the first slide rail 24. The first slide rail 24 and the slider 214 guide the slide plate 213 of the transmission component 21, which can ensure the stability of the slide plate 213 during the sliding process and the accuracy of the movement distance of the slide plate 213, ensuring that the height of the transmission channel 22 can be adjusted to the correct position.

[0043] Preferably, the slide plates 213 of both sets of transmission components 21 are provided with sliders 214, and the sliders 214 of the two slide plates 213 are slidably disposed on the same first slide rail 24 to ensure the stability of the relative position of the two sets of transmission components 21 during the process of approaching or moving away.

[0044] Furthermore, the transmission module 2 includes two spaced-apart fixed seats 23, and two sets of transmission components 21 are disposed between the two fixed seats 23. One end of the transmission component 21 is slidably disposed on the first slide rail 24 of one fixed seat 23, and the other end of the transmission component 21 is slidably disposed on the first slide rail 24 of the other fixed seat 23. By guiding the slide plate 213 at both ends, the stability of the slide plate 213 can be further improved.

[0045] like Figure 2 and Figure 3 As shown, the transmission module 2 also includes an adjustment drive unit 25, which includes two drive shafts 251 that extend and retract in opposite directions. One drive shaft 251 is connected to a slide plate 213, and the other drive shaft 251 is connected to another slide plate 213. The adjustment drive unit 25 can adjust the distance between the two transmission components 21 by moving the two drive shafts 251 in opposite directions to adapt to different types of circuit boards.

[0046] Specifically, the adjusting drive component 25 can be a double-piston cylinder, which includes a cylinder body and two piston rods slidably disposed within the cylinder body. The two piston rods are the drive shaft 251. One piston rod is connected to one slide plate 213, and the other piston rod is connected to another slide plate 213. By inflating and deflating the double-piston cylinder, the two slide plates 213 can be driven to move closer or further apart.

[0047] like Figure 2 and Figure 3As shown, preferably, the drive shaft 251 is connected to a drive block 252, and the slide plate 213 has a drive groove 2131. The drive block 252 is inserted into the drive groove 2131 to drive the slider 214 to move. The drive block 252 is inserted into the drive groove 2131 in a direction perpendicular to the transmission direction of the transmission channel 22. This structure allows the drive block 252 to drive the slide plate 213 to rise or fall by pushing against the side wall of the drive groove 2131, regardless of whether the drive block 252 rises or falls. This simplifies the transmission structure, saves on bolts, screws, and other fixing structures, and facilitates disassembly and assembly, improving maintenance and repair efficiency.

[0048] Furthermore, a fixing groove is formed on the inner wall of the drive groove 2131, and a fixing elastic element 253 is provided in the fixing groove. The fixing elastic element 253 elastically abuts against the drive block 252 and presses the drive block 252 against the inner wall of the drive groove 2131. The fixing elastic element 253 can improve the stability between the drive block 252 and the slide plate 213, and prevent the drive block 252 from impacting the slide plate 213 during the lifting and lowering of the drive plate 213, thereby protecting the drive block 252 and the slide plate 213. It can also reduce noise and optimize the working environment.

[0049] like Figure 2 As shown, for ease of description, the portion of the conveyor belt 212 located between the two conveyor wheels 211 and close to the other set of conveyor components 21 is referred to as the conveyor segment 2121. A conveyor channel 22 is formed between the conveyor segments 2121 of the two conveyor components 21. To ensure the stability of the circuit board during the flipping process, the two sets of conveyor components 21 are close to each other, and the two conveyor wheels 211 of one set of conveyor components 21 can correspondingly abut against the two conveyor wheels 211 of the other set of conveyor components 21, thereby sealing both ends of the conveyor channel 22.

[0050] Once the circuit board enters the transmission channel 22, the two sets of transmission components 21 approach each other, and the two transmission sections 2121 clamp the circuit board, ensuring its stability through friction. Simultaneously, the two transmission wheels 211 of one set of transmission components 21 engage with the two transmission wheels 211 of the other set of transmission components, effectively sealing both ends of the transmission channel 22. During the rotation of the fixed frame 1 driven by the drive component 3, even if the circuit board moves relative to the transmission belt 212, it will be blocked by the two lower transmission wheels 211, preventing the circuit board from sliding out from the lower end of the transmission channel 22 and ensuring the stability of the circuit board during the flipping process.

[0051] Furthermore, the transmission assembly 21 also includes a pressure roller 29 and a pressure elastic member. The pressure roller 29 is movably mounted on the slide plate 213, and the pressure elastic member drives the pressure roller 29 to elastically abut against the side of the transmission section 2121 of the transmission belt 212 opposite to the other set of transmission assemblies 21. This structure allows the pressure rollers 29 of the two sets of transmission assemblies 21 to elastically clamp the circuit board when the two sets of transmission assemblies 21 come close to each other to clamp the circuit board, further improving the stability of the circuit board within the transmission channel 22.

[0052] Preferably, the slide plate 213 is provided with a limiting part, which abuts against the rotation axis of the pressure roller 29 to limit the position of the pressure roller 29. When the rotation axis of the pressure roller 29 abuts against the limiting part, the pressure roller 29 abuts against the transmission section 2121, and the transmission section 2121 is in a straight state. This structure ensures that when the two sets of transmission components 21 are not clamping the circuit board, the transmission sections 2121 of the two sets of transmission components 21 are in a parallel state, thereby ensuring that the height of the transmission channel 22 is consistent throughout, and avoiding increased resistance to the circuit board entering the transmission channel 22 due to local height differences.

[0053] Specifically, along the extension direction of the transmission section 2121, a plurality of pressure rollers 29 are spaced apart on the slide plate 213, and each pressure roller 29 is connected to a pressure elastic element.

[0054] like Figure 2 As shown, the transmission component 21 also includes a transmission drive component 27 and a transmission drive wheel 28. The transmission drive component 27 is connected to the transmission drive wheel 28 in a transmission manner. The transmission drive component 27 abuts against the transmission belt 212. The transmission drive component 27 drives the transmission drive wheel 28 to rotate, so that the transmission drive wheel 28 can drive the transmission belt 212 to rotate, so as to transmit and transmit the circuit board.

[0055] It is worth noting that, in order to prevent slippage between the transmission drive wheel 28 and the transmission belt 212, which would prevent the circuit board from being transferred to the appropriate position, the transmission drive wheel 28 is a synchronous wheel and the transmission belt 212 is a synchronous belt.

[0056] In this embodiment, the transmission assembly 21 may further include a plurality of tensioning rollers 26, all of which abut against the transmission belt 212, and at least one tensioning roller 26 is movable to tension the transmission belt 212. The tension of the transmission belt 212 is adjusted by moving at least one tensioning roller 26, so that the transmission belt 212 is tensioned to the transmission drive wheel 28, thereby ensuring the synchronization of movement between the transmission drive wheel 28 and the transmission belt 212.

[0057] Preferably, along the extension direction of the conveyor belt 212, the two tensioning rollers 26 located on both sides of the transmission drive wheel 28 are situated on the same side of the conveyor belt 212, while the transmission drive wheel 28 is located on the other side of the conveyor belt 212, such that the conveyor belt 212 forms an angle of less than 120° between the two tensioning rollers 26 and the transmission drive wheel 28. This structure, on the one hand, increases the tension of the conveyor belt 212 on the transmission drive wheel 28, thereby increasing the pressure of their interaction; on the other hand, it increases the contact area between the conveyor belt 212 and the transmission drive wheel 28. Both of these aspects can improve the friction between the conveyor belt 212 and the transmission drive component 27, thereby improving the synchronization between the conveyor belt 212 and the transmission drive component 27 and preventing slippage.

[0058] Understandably, using a wider conveyor belt 212 for circuit board transport is wasteful of materials and increases the weight of the conveyor assembly 21, making it more difficult for the drive assembly 3 to rotate the drive bracket 1. Figure 1 As shown, to solve this problem, the sorting mechanism includes two sets of transmission modules 2, and at least one set of transmission modules 2 is slidably disposed on the fixed frame 1 so that the distance between the two sets of transmission modules 2 is adjustable.

[0059] By using one set of transmission modules 2 to support one edge of the circuit board and another set of transmission modules 2 to support the other edge, the circuit board can still be transported. This significantly reduces the total area of ​​the transmission belt 212, saving material and reducing weight. Moreover, since the distance between the two sets of transmission modules 2 is adjustable, this sorting mechanism can be used to flip and classify circuit boards of different widths, improving its applicability.

[0060] Preferably, a lead screw 42 is rotatably mounted on the fixed frame 1, and a set of transmission modules 2 is slidably mounted on the fixed frame 1 and threadedly connected to the lead screw 42. By rotating the lead screw 42, one set of transmission modules 2 moves towards or away from another set of transmission modules 2, thereby adapting to circuit boards of different widths. On the one hand, the operator can accurately adjust the moving distance of the transmission modules 2 by controlling the number of rotations of the lead screw 42; on the other hand, the lead screw 42 can act as a decelerator, so that when the lead screw 42 rotates at normal speed, the moving speed of the transmission modules 2 is slower, ensuring both smooth movement of the transmission modules 2 and improving the accuracy of adjusting the position of the transmission modules 2.

[0061] Preferably, a distance adjustment motor 41 is provided on the fixing frame 1, and the distance adjustment motor 41 is connected to the lead screw 42, which can drive the lead screw 42 to rotate. In order to further improve the stability of the transmission module 2 when moving, two or more lead screws 42 are rotatably provided on the fixing frame 1, and each lead screw 42 is threadedly connected to the same transmission module 2.

[0062] It is worth noting that, in order to facilitate the sliding of the transmission module 2 on the fixed frame 1, the fixed frame 1 is provided with a second slide rail, and the fixed seat 23 of the transmission module 2 is provided with a second slider 214, which is slidably mounted on the second slide rail.

[0063] In order to avoid blocking the circuit board from entering and exiting the transmission channel 22, the mounting bracket 1 has an inlet and outlet 15 at both ends of the transmission channel 22.

[0064] like Figure 1 As shown, in this embodiment, the drive assembly 3 includes a flipping motor 31, a flipping drive wheel 32, and a flipping transmission belt 33. A flipping driven wheel 14 is fixedly connected to the fixed frame 1, and the axis of the flipping driven wheel 14 is on the same straight line as the axis of the rotating shaft 13. The flipping motor 31 is connected to the flipping drive wheel 32, and the flipping transmission belt 33 is sleeved on the flipping drive wheel 32 and the flipping driven wheel 14. When the flipping motor 31 is started, the flipping drive wheel 32 drives the flipping driven wheel 14 to rotate through the flipping transmission belt 33, thereby causing the fixed frame 1 to flip.

[0065] It is worth noting that, in order to prevent slippage between the flip drive wheel 32, the flip driven wheel 14 and the flip transmission belt 33, which would prevent the fixed frame 1 from being flipped into place, the flip drive wheel 32 and the flip driven wheel 14 are synchronous pulleys, and the flip transmission belt 33 is a synchronous belt.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sorting mechanism, characterized in that, include: A fixed frame is provided with a transmission module. The transmission module includes two sets of transmission components. Each transmission component includes two transmission wheels and a transmission belt sleeved on the two transmission wheels. A transmission channel is formed between the two sets of transmission components. The transmission channel transmits plate-shaped products. The two sets of transmission components are slidably disposed on the fixed frame in a direction perpendicular to the transmission channel to adjust the distance between the two transmission belts. A drive assembly that drives the fixed frame to rotate.

2. The sorting mechanism according to claim 1, characterized in that, The transmission module further includes a fixed base and a first slide rail. The first slide rail is disposed on the fixed base. The transmission component includes a connected slide plate and a slider. The two transmission wheels are rotatably disposed on the slide plate, and the slider is slidably disposed on the first slide rail.

3. The sorting mechanism according to claim 2, characterized in that, The transmission module further includes an adjustment drive, which includes two drive shafts that extend and retract in opposite directions. One drive shaft is connected to one of the slide plates, and the other drive shaft is connected to another slide plate.

4. The sorting mechanism according to claim 3, characterized in that, The drive shaft is connected to a drive block, and the slide plate has a drive slot. The drive block is inserted into the drive slot to drive the slide plate to move.

5. The sorting mechanism according to claim 4, characterized in that, The inner wall of the drive groove is provided with a fixing groove, and a fixing elastic element is provided in the fixing groove. The fixing elastic element elastically abuts against the drive block and presses the drive block against the inner wall of the drive groove.

6. The sorting mechanism according to claim 1, characterized in that, The two sets of transmission components are brought close to each other, with the two transmission wheels of one set of transmission components abutting against the two transmission wheels of the other set of transmission components to close both ends of the transmission channel.

7. The sorting mechanism according to claim 1, characterized in that, The transmission assembly further includes a plurality of tensioning rollers, each of which abuts against the transmission belt, and at least one of the tensioning rollers is movable to tension the transmission belt.

8. The sorting mechanism according to any one of claims 1 to 7, characterized in that, The sorting mechanism includes two sets of the transmission modules, and at least one set of the transmission modules is slidably disposed on the fixed frame so that the distance between the two sets of the transmission modules is adjustable.

9. The sorting mechanism according to claim 8, characterized in that, A lead screw is rotatably mounted on the fixed frame, and a set of the transmission modules is slidably mounted on the fixed frame and threadedly connected to the lead screw.

10. The sorting mechanism according to any one of claims 1 to 7, characterized in that, The sorting mechanism also includes a lifting assembly, which includes two lifting drive wheels and a lifting transmission belt sleeved on the two lifting drive wheels. The fixed frame is fixedly connected to the lifting transmission belt.

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