Removing device and fruit and vegetable sorting machine
By designing the conveyor belt, air blowing assembly, and recycling assembly of the rejection device, the problem of untimely impurity removal in air blowing treatment was solved, achieving effective separation of fruits and branches and leaves and ensuring sorting efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, when airflow is used to treat berries, impurities such as branches, leaves, and stems cannot be removed in time, affecting the efficiency of subsequent berry sorting.
Design a rejection device including a conveyor belt, an air blowing assembly, and a recycling assembly. The airflow is blown onto the fruits and vegetables through the through holes, separating the fruits from the branches and leaves. The branches and leaves enter the recycling assembly, preventing impurities from falling onto other machinery and affecting the sorting.
It effectively separates fruits and branches, ensuring that fruits remain on the conveyor belt while branches and leaves are recycled, thus preventing impurities from affecting subsequent sorting steps and improving sorting efficiency.
Smart Images
Figure CN224010453U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fruit production equipment, in particular to a kind of rejecting device and fruit and vegetable sorting machine. BACKGROUND
[0002] With the pursuit of people to the quality of life, more and more people gradually increase the quality requirements of fruit, and fruit sorting also becomes an important technology.
[0003] Some berries on the market, for example: cherry, blueberry, chestnut and so on, need to remove the branches, leaves and fruit stems and other impurities on them before sorting. At present, the fruit sorting generally uses large-scale machines with mechanical automation, and the berries are treated by air flow. When the impact force of air flow on leaves reaches the binding force of fruit and leaves, the leaves will separate from the fruit, and then the separated fruit will be sorted.
[0004] Among them, if the branches, leaves and fruit stems and other impurities cannot be cleaned in time, these impurities are easy to be blown away by air flow and fall into the machine, affecting the subsequent berry sorting. INVENTION CONTENTS
[0005] The embodiment of the utility model aims to provide a kind of rejecting device and fruit and vegetable sorting machine, to solve the technical problem that fruit is treated by air flow in prior art, branches, leaves and fruit stems and other impurities cannot be cleaned in time, affecting subsequent berry sorting.
[0006] In order to solve the above technical problems, the utility model provides a kind of rejecting device, comprising: rack;
[0007] Conveying belt, the conveying belt is installed on the rack, and the conveying belt is provided with through holes;
[0008] Air blowing assembly, the air blowing assembly is installed on the rack, the air blowing assembly includes fan and air bellow, the air bellow and the fan are located on the opposite sides of the conveying belt respectively, the air bellow is located above the conveying belt, the air bellow is provided with air inlet and air outlet, the air inlet faces the fan, the fan is used for blowing air towards the air inlet, and the air flow enters the air inlet through the through hole and then flows out from the air outlet;
[0009] Recycling assembly, the recycling assembly is installed on the rack, and the recycling assembly is located on one side of the air outlet.
[0010] Through the above structure, the gas blows to fruit and vegetable through the through hole, separates the fruit and leaves of fruit and vegetable, and the fruit is heavier than the leaves, so the fruit will remain on the conveying belt; The leaves enter the air inlet under the action of air flow and then flow out from the air outlet. The leaves flow out from the air outlet and enter the recycling assembly, avoiding the leaves falling into other machines and affecting the subsequent sorting steps of blueberries.
[0011] In some embodiments, the blowing direction of the fan is perpendicular to the conveying direction of the conveying belt.
[0012] Through the above structure, the blowing direction of the fan is perpendicular to the conveying direction of the conveying belt, and the airflow can be blown vertically to the fruits and leaves of the fruits and vegetables, so that the leaves receive a greater blowing force, facilitating the separation of the fruits and leaves.
[0013] In some embodiments, the conveying belt is downwardly inclined relative to the horizontal plane along the conveying direction of the conveying belt.
[0014] Through the above structure, after the fruits and vegetables enter the conveying belt, they move along the conveying direction of the conveying belt, and the conveying belt is downwardly inclined relative to the horizontal plane, so that the fruits and vegetables have a downward movement tendency due to gravity, avoiding the fruits and vegetables from being disturbed by the airflow and causing stagnation on the conveying belt.
[0015] In some embodiments, the air bellow comprises a gas guiding part and a gas distributing part, the gas guiding part is connected to the gas distributing part, the gas inlet is arranged at one end of the gas guiding part, the other end of the gas guiding part is connected to one end of the gas distributing part, and the other end of the gas distributing part is provided with the gas outlet; the gas guiding part comprises an arc-shaped section, the arc-shaped section is connected to the gas distributing part, and the center of curvature of the arc-shaped section is located on the side of the gas guiding part facing the conveying belt.
[0016] Through the above structure, the gas flows from the gas guiding part to the gas distributing part, and a vortex is formed in the arc-shaped section, which plays a guiding role in guiding the leaves into the gas distributing part to flow towards the gas outlet.
[0017] In some embodiments, the gas guiding part further comprises an air inlet section, a first bending section and a second bending section, the air inlet section, the first bending section, the second bending section and the arc-shaped section are connected in sequence, the gas outlet is arranged at one end of the air inlet section, and the gas outlet gradually decreases along the direction from the air inlet section to the first bending section.
[0018] Through the above structure, the gas outlet gradually decreases along the direction from the air inlet section to the first bending section, which plays a guiding role in facilitating the airflow to gather and enter, so as to gather and blow the separated leaves into the air bellow, avoiding the leaves from being blown out of the air bellow by the airflow.
[0019] In some embodiments, the first bending section comprises a first bending surface, the first bending surface gradually moves away from the gas distributing part upwardly, the second bending section comprises a second bending surface, the second bending surface gradually moves towards the gas distributing part upwardly, and the first bending surface and the second bending surface are connected.
[0020] Through the above structure, the first bending surface and the second bending surface improve the strength of the side wall of the air guide part, and further improve the anti-deformation ability of the air guide part, preventing the first bending section, the second bending section and the arc section from deforming and being difficult to form vortex.
[0021] In some embodiments, the air diffuser is provided with an air diffuser cavity communicating with the air outlet; the air diffuser is provided with a first air outlet on the side away from the conveying belt, and a second air outlet on the side away from the air guide part; the first air outlet and the second air outlet both communicate with the air diffuser cavity and the outside; and a mesh partition is installed at the first air outlet and the second air outlet.
[0022] Through the above structure, the airflow carries the branches and leaves from the air guide part into the air diffuser cavity and then out of the air outlet; after the airflow enters the air diffuser cavity, it can flow out of the first air outlet and the second air outlet, and the branches and leaves collide with the mesh partition and are blocked, so that the branches and leaves are difficult to flow out of the first air outlet and the second air outlet and can only flow out of the air outlet into the recycling assembly; the airflow flowing out of the first air outlet and the second air outlet can prevent the airflow from flowing back.
[0023] In some embodiments, the air diffuser comprises a guide surface on the side away from the air guide part; the guide surface is inclined and gradually approaches the air guide part downward; and the air outlet is located at the end of the guide surface close to the recycling assembly.
[0024] Through the above structure, the airflow passes through the second air outlet, the branches and leaves collide with the inner wall of the air diffuser, the branches and leaves abut against the guide surface, and the branches and leaves move in the direction of the air outlet under the guidance of the guide surface, so as to reduce the occurrence of the branches and leaves adhering to the inner wall of the air diffuser.
[0025] In some embodiments, the recycling assembly comprises a transfer belt, a driving member and a transfer frame body; the driving member is connected to the transfer belt and is used to drive the transfer belt to move; and the transfer frame body is installed on the rack; the transfer belt is installed on the transfer frame body, the transfer frame body is located between the air diffuser and the conveying belt, the opposite sides of the transfer belt cover the air outlet, and the transfer belt spans the conveying belt.
[0026] Through the above structure, the transfer frame body is located between the air diffuser and the conveying belt, so that the structure of the removing device is more compact. The opposite sides of the transfer belt cover the air outlet, so as to ensure that the branches and leaves separated from the air outlet can completely enter the transfer belt and reduce the branches and leaves falling onto the conveying belt. The driving member drives the transfer belt to move, and the transfer belt transfers the branches and leaves for processing.
[0027] The utility model also provides a fruit and vegetable sorting machine, fruit and vegetable sorting machine includes the removing device in any one implementation of above.
[0028] Compared with the prior art, in the embodiment of the utility model, gas blows to fruit and vegetable through the through hole, separates the fruit and the branch and leaf of fruit and vegetable, the fruit is heavier than the branch and leaf, so the fruit will remain on the conveying belt, the branch and leaf enters the air inlet under the action of air flow and then flows out from the air outlet and then enters the recycling assembly. BRIEF DESCRIPTION OF DRAWINGS
[0029] One or more embodiments are illustrated by way of example in the drawings in which like reference numerals indicate like elements, and in which:
[0030] Figure 1 is a structural schematic view of the rejecting device provided in an embodiment of the utility model;
[0031] Figure 2 is Figure 1 a sectional structural schematic view of the rejecting device in the embodiment;
[0032] Figure 3 is Figure 1 a partial structural schematic view of the conveying belt in the embodiment;
[0033] Figure 4 is Figure 1 a structural schematic view of the air bellow in the embodiment;
[0034] Figure 5 is Figure 1 a structural schematic view of the air blowing assembly and the transfer assembly in the embodiment.
[0035] The reference signs are as follows:
[0036] 100, rejecting device; 10, rack; 20, conveying belt; 21, through hole; 30, air blowing assembly; 31, fan; 32, air bellow; 321, air inlet; 322, air outlet; 323, air guide part; 3231, arc segment; 3232, air inlet segment; 3233, first bending segment; 32331, first bending surface; 3234, second bending segment; 32341, second bending surface; 324, air diffusing part; 3241, air diffusing cavity; 3242, first air outlet; 3243, second air outlet; 3244, guide surface; 40, recycling assembly; 41, transfer belt; 42, driving part; 43, transfer rack body. DETAILED DESCRIPTION
[0037] For the convenience of understanding the utility model, the utility model is explained in more detail in combination with the drawings and specific embodiments. It should be noted that when an element is described as being "connected" to another element, it can be directly on the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" and the like used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0038] Unless otherwise defined, all technical and scientific terms used in the specification have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not used to limit the utility model.
[0039] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a structure diagram of the removing device provided by an embodiment of the utility model; Figure 2 is Figure 1 a cross-sectional structure diagram of the removing device; Figure 3 is Figure 1 a partial structure diagram of the conveying belt.
[0040] An embodiment of the utility model provides a kind of removing device 100, including rack 10, conveying belt 20, blowing component 30 and recycling component 40, conveying belt 20 is installed in rack 10, and through hole 21 is set in conveying belt 20, blowing component 30 is installed in rack 10, blowing component 30 includes fan 31 and air bellow 32, air bellow 32 and fan 31 are located at the opposite sides of conveying belt 20 respectively, air bellow 32 is located above conveying belt 20, air bellow 32 is provided with air inlet 321 and air outlet 322, air inlet 321 is towards fan 31, fan 31 is used to blow air towards air inlet 321, airflow enters air inlet 321 again from air outlet 322 through through hole 21;Recycling component 40 is installed in rack 10, and recycling component 40 is located at one side of air outlet 322.
[0041] Here, it should be noted that in the present embodiment, the berry is exemplified by blueberry, but is not limited thereto, and the fan 31 blows air on the blueberry to separate the fruit and leaves of the blueberry.
[0042] Specifically, the blueberries are placed on the conveying belt 20, the blueberries move along the conveying direction of the conveying belt 20, the blower 31 is located below the conveying belt 20, and the air box 32 is located above the conveying belt 20. The blower 31 blows air to the conveying belt 20, the air is blown to the blueberries through the through hole 21, the fruits and leaves of the blueberries are separated, the fruits are heavier than the leaves, so the fruits remain on the conveying belt 20; the leaves enter the air inlet 321 under the action of the airflow and then flow out from the air outlet 322. The leaves flow out from the air outlet 322 and enter the recycling assembly 40, so as to avoid the leaves falling into other machines and affecting the subsequent sorting steps of the blueberries.
[0043] In one embodiment, the blowing direction of the blower 31 is perpendicular to the conveying direction of the conveying belt 20.
[0044] Specifically, the blowing direction of the blower 31 is perpendicular to the conveying direction of the conveying belt 20, the airflow can be blown vertically to the fruits and leaves of the blueberries, and in this way, the leaves receive a larger blowing force, so as to facilitate the separation of the fruits and the leaves.
[0045] In one embodiment, along the conveying direction of the conveying belt 20, the conveying belt 20 is downwardly inclined relative to the horizontal plane.
[0046] Specifically, after the blueberries enter the conveying belt 20, due to the downward inclination of the conveying belt 20 relative to the horizontal plane along the conveying direction of the conveying belt 20, the blueberries have a downward movement trend under the action of the weight, so as to avoid the blueberries being disturbed by the airflow and being retained on the conveying belt 20.
[0047] Referring to Figure 1 , Figure 2 and Figure 4 , Figure 4 is Figure 1 a structural schematic view of the air box.
[0048] In one embodiment, the air box 32 includes a gas guiding part 323 and a gas diffusing part 324, the gas guiding part 323 is connected to the gas diffusing part 324, the air inlet 321 is formed at one end of the gas guiding part 323, the other end of the gas guiding part 323 is connected to one end of the gas diffusing part 324, and the other end of the gas diffusing part 324 is provided with the air outlet 322; the gas guiding part 323 includes an arc-shaped section 3231, the arc-shaped section 3231 is connected to the gas diffusing part 324, and the center of curvature of the arc-shaped section 3231 is located on the side of the gas guiding part 323 facing the conveying belt 20.
[0049] Specifically, the arc-shaped section 3231 is arc-shaped, and a curvature center of the arc-shaped section 3231 is located on a side of the air guide part 323 facing the conveying belt 20. It can be simply understood that a section of the air guide part 323 close to the air diffusing part 324 is arc-shaped, and the air guide part 323 is curved towards the conveying belt 20. The gas flows along the air diffusing part 324 from the air guide part 323, and a vortex is formed at the arc-shaped section 3231. The vortex plays a guiding role, and the vortex guides the branches and leaves to flow towards the air outlet 322 in the air diffusing part 324.
[0050] In one embodiment, the air guide part 323 further includes an air inlet section 3232, a first bending section 3233, and a second bending section 3234. The air inlet section 3232, the first bending section 3233, the second bending section 3234, and the arc-shaped section 3231 are sequentially connected. The air outlet 322 is arranged at one end of the air inlet section 3232, and the air outlet 322 gradually decreases along the air inlet section 3232 to the first bending section 3233.
[0051] Specifically, the air outlet 322 gradually decreases along the air inlet section 3232 to the first bending section 3233 to play a guiding role, so as to facilitate the airflow to gather and enter, thereby gathering and blowing the separated branches and leaves into the bellows 32, and avoiding the branches and leaves from being blown out of the bellows 32 by the airflow.
[0052] In one embodiment, the first bending section 3233 includes a first bending surface 32331, and the first bending surface 32331 gradually moves away from the air diffusing part 324 upwards. The second bending section 3234 includes a second bending surface 32341, and the second bending surface 32341 gradually moves close to the air diffusing part 324 upwards. The first bending surface 32331 and the second bending surface 32341 are connected.
[0053] Specifically, the air guide part 323 is bent during the manufacturing process to form the first bending surface 32331 and the second bending surface 32341, so as to improve the strength of the side wall of the air guide part 323, and further improve the anti-deformation ability of the air guide part 323, thereby preventing the first bending section 3233, the second bending section 3234, and the arc-shaped section 3231 from being difficult to form a vortex due to deformation.
[0054] Here, it needs to be further explained that the air inlet section 3232, the first bending section 3233, the second bending section 3234, and the arc-shaped section 3231 are sequentially connected and substantially arc-shaped, so as to form a vortex to guide the airflow.
[0055] In one embodiment, the air dispersing part 324 is provided with an air dispersing cavity 3241, which is communicated with the air outlet 322; the air dispersing part 324 is provided with a first air outlet 3242 on the side away from the conveying belt 20, and is provided with a second air outlet 3243 on the side away from the air guiding part 323; the first air outlet 3242 and the second air outlet 3243 are both communicated with the air dispersing cavity 3241 and the outside, and the first air outlet 3242 and the second air outlet 3243 are both provided with a meshed baffle.
[0056] Specifically, the airflow carries the branches and leaves from the air guiding part 323 into the air dispersing cavity 3241 and then out of the air outlet 322; after the airflow enters the air dispersing cavity 3241, the airflow can flow out of the first air outlet 3242 and the second air outlet 3243, the branches and leaves collide with the meshed baffle and are blocked, so that the branches and leaves are difficult to flow out of the first air outlet 3242 and the second air outlet 3243, and the branches and leaves can only flow out of the air outlet 322 and into the recycling assembly 40.
[0057] Here, it needs to be further explained that the airflow flowing out of the first air outlet 3242 and the second air outlet 3243 can prevent the airflow from flowing back, thereby avoiding that the backflowing airflow carries the branches and leaves to flow out of the air inlet 321. In addition, it needs to be explained that the meshed baffle is not shown in the figure.
[0058] In one embodiment, the air dispersing part 324 comprises a guide surface 3244, which is located on the side of the air dispersing part 324 away from the air guiding part 323; the guide surface 3244 is arranged obliquely, and gradually approaches the air guiding part 323 downward; the air outlet 322 is located at the end of the guide surface 3244 close to the recycling assembly 40.
[0059] Specifically, the second air outlet 3243 is provided on the guide surface 3244; the airflow drives the branches and leaves to move towards the side of the air dispersing part 324 away from the air guiding part 323; the airflow passes through the second air outlet 3243, the branches and leaves collide with the inner wall of the air dispersing part 324, the branches and leaves abut against the guide surface 3244, and the branches and leaves move towards the air outlet 322 under the guidance of the guide surface 3244, so as to reduce the situation that the branches and leaves adhere to the inner wall of the air dispersing part 324.
[0060] Referring to Figure 1 , Figure 2 and Figure 5 , Figure 5 is Figure 1 a structure schematic view of the air blowing assembly and the transfer assembly.
[0061] In one embodiment, the recycling assembly 40 comprises a transfer belt 41, a driving member 42 connected to the transfer belt 41 for driving the transfer belt 41 to move, and a transfer frame 43 installed on the frame 10; the transfer belt 41 is installed on the transfer frame 43, the transfer frame 43 is located between the air diffusing part 324 and the conveying belt 20, and opposite sides of the transfer belt 41 cover the air outlets 322, and the transfer belt 41 spans the conveying belt 20.
[0062] Specifically, the transfer frame 43 is located between the air diffusing part 324 and the conveying belt 20, so that the structure of the removing device 100 is more compact. The opposite sides of the transfer belt 41 cover the air outlets 322, so as to ensure that the branches and leaves separated from the air outlets 322 can completely enter the transfer belt 41, and reduce the branches and leaves falling on the conveying belt 20. The driving member 42 drives the transfer belt 41 to move, and the transfer belt 41 transfers the branches and leaves for processing.
[0063] In the embodiment, the width of the transfer belt 41 is matched with the air outlet 322, and the opposite sides of the transfer frame 43 and the transfer belt 41 are located outside the air outlet 322, so as to ensure that the branches and leaves fall into the transfer belt 41.
[0064] The transfer frame 43 and the transfer belt 41 span the conveying belt 20, and the length direction of the transfer frame 43 is perpendicular to the length direction of the conveying belt 20, so that the conveying direction of the transfer belt 41 is perpendicular to the conveying direction of the conveying belt 20, so that the structure of the removing device 100 is more compact.
[0065] The utility model also provides a kind of fruit and vegetable sorting machine, including the removing device 100 in any one embodiment above, and the fruit and vegetable sorting machine further includes feeding mechanism, removing mechanism, conveying mechanism and sorting mechanism.
[0066] The feeding mechanism includes a hopper and a feeding belt, the hopper includes a discharge port, and the fruits and vegetables are placed in the hopper and enter the feeding belt from the discharge port. The feeding belt is used to transport the fruits and vegetables to the removing device 100.
[0067] After the removing device 100 separates the fruits and branches and leaves of the fruits and vegetables, it transports the fruits of the fruits and vegetables to the conveying mechanism.
[0068] The conveying mechanism includes a V-shaped conveying belt, a fruit cup and a rotating transfer belt. The V-shaped conveying belt arranges the fruits and vegetables while conveying them. The arranged fruits and vegetables are conveyed to the fruit cup. The rotating transfer belt drives the fruit cup wheels on the fruit cup to rotate to drive the fruits and vegetables on the fruit cup to rotate.
[0069] The sorting mechanism comprises a detection device, a blowing device and sorting channels, during the rotation of the fruits and vegetables on the fruit cups, the detection device detects the fruits and vegetables on the fruit cups, the fruit cups carrying the detected fruits and vegetables are transported to the blowing device, the blowing device blows the fruits and vegetables on the fruit cups according to the detection results, blows the fruits and vegetables of different qualities into different sorting channels, so as to complete the sorting of the fruits and vegetables.
[0070] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features in the above examples or different examples can also be combined, the steps can be implemented in any order, and there are many other changes of the different parts of the present application as described above, in order to be simple, they are not provided in details; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A rejection device, characterized in that, include: frame; A conveyor belt, which is mounted on the frame and has through holes; An air blowing assembly is mounted on the frame. The air blowing assembly includes a fan and an air box. The air box and the fan are located on opposite sides of the conveyor belt. The air box is located above the conveyor belt. The air box has an air inlet and an air outlet. The air inlet faces the fan. The fan blows air toward the air inlet. The airflow enters the air inlet through the through hole and then flows out from the air outlet. A recovery assembly is mounted on the frame and located on one side of the air outlet.
2. The rejection device according to claim 1, characterized in that, The air blowing direction of the fan is perpendicular to the conveying direction of the conveyor belt.
3. The rejection device according to claim 2, characterized in that, Along the conveying direction of the conveyor belt, the conveyor belt is inclined downward relative to the horizontal plane.
4. The rejection device according to claim 1, characterized in that, The air box includes an air guide section and an air diffuser section. The air guide section is connected to the air diffuser section. The air inlet is located at one end of the air guide section, and the other end of the air guide section is connected to one end of the air diffuser section. The other end of the air diffuser section has an air outlet. The air guide section includes an arc-shaped segment connected to the air diffuser section. The center of curvature of the arc-shaped segment is located on the side of the air guide section facing the conveyor belt.
5. The rejection device according to claim 4, characterized in that, The air guide section further includes an air inlet section, a first bending section, and a second bending section. The air inlet section, the first bending section, the second bending section, and the arc-shaped section are connected in sequence. The air outlet is located at one end of the air inlet section, and the air outlet gradually decreases in size along the direction from the air inlet section to the first bending section.
6. The rejection device according to claim 5, characterized in that, The first bending section includes a first bending surface, which gradually moves upward away from the air dispersing part. The second bending section includes a second bending surface, which gradually moves upward towards the air dispersing part. The first bending surface and the second bending surface are connected.
7. The rejection device according to claim 4, characterized in that, The air dispersing section has an air dispersing chamber, which is connected to the air outlet; the air dispersing section has a first exhaust port on the side away from the conveyor belt, and a second exhaust port on the side away from the air guide section. Both the first exhaust port and the second exhaust port are connected to the air dispersing chamber and the outside. Both the first exhaust port and the second exhaust port are equipped with a mesh partition.
8. The rejection device according to claim 4, characterized in that, The gas dispersing section includes a guide surface located on the side of the gas dispersing section away from the gas guiding section. The guide surface is inclined and gradually approaches the gas guiding section downwards. The gas outlet is located at the end of the guide surface near the end of the recovery component.
9. The rejection device according to claim 4, characterized in that, The recycling assembly includes a transfer belt, a drive unit, and a transfer frame. The drive unit is connected to the transfer belt and is used to drive the transfer belt to move. The transfer frame is mounted on the frame. The transfer belt is mounted on the transfer frame, and the transfer frame is located between the gas dispersing section and the conveyor belt. The opposite sides of the transfer belt cover the gas outlet, and the transfer belt spans the conveyor belt.
10. A fruit and vegetable sorting machine, characterized in that, Includes the rejection device as described in any one of claims 1 to 9.