Foreign matter selecting machine for vegetable conveying

By designing a foreign object sorting machine, which uses a blower and an optical camera to identify the turning rollers turning vegetables, the problem of low efficiency in traditional manual sorting is solved, achieving automated and thorough foreign object sorting and improving vegetable processing efficiency.

CN224168020UActive Publication Date: 2026-04-28JIANGXI GANGONGYUAN FOOD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI GANGONGYUAN FOOD TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional methods of removing foreign objects from vegetables rely mainly on manual labor, which is time-consuming, labor-intensive, and inefficient. It cannot completely remove lightweight and high-density foreign objects, especially the lower surface lesions of leafy vegetables, which cannot be detected and treated in a timely manner.

Method used

Design a foreign object sorting machine that uses a blower and an optical camera to remove lightweight foreign objects by blowing them away and using the optical camera to identify and remove high-density foreign objects by using a push rod. At the same time, a turning roller turns the vegetables so that their bottom surface can be observed by the camera, thus achieving all-round sorting.

Benefits of technology

It achieves automated and thorough foreign object selection, improves vegetable conveying efficiency, ensures that both lightweight and high-density foreign objects are effectively removed, reduces manual intervention, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a foreign matter selecting machine for vegetable conveying, which belongs to the field of vegetable selecting machines and comprises two workbenches, a plurality of conveying rollers and conveying belts are rotatably arranged on the two workbenches respectively and can be used for conveying vegetables, and circulation gaps are arranged among the conveying rollers. A plurality of air blowing barrels are arranged above the circulation gaps and communicated with an air blower, a guide plate is fixedly arranged below the conveying rollers, an inclined guide plate is further fixedly arranged at the conveying tail ends of the conveying rollers, the conveying belt is arranged at the inclined lower end of the guide plate, and a turning roller is rotationally arranged above the conveying belt. And the optical cameras and the push rods are arranged on the two sides of the turning roller, so that the vegetables can be shot and pushed.
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Description

Technical Field

[0001] This utility model relates to the field of vegetable sorting machines, specifically to a foreign object sorting machine used in vegetable conveying. Background Technology

[0002] In the process of vegetable processing, vegetables need to be transported to various processing stages. During the transportation of vegetables, foreign objects mixed in with the vegetables are detected, selected and removed, which can reduce the time of subsequent processing stages and improve processing efficiency to a certain extent.

[0003] Foreign objects include lightweight objects such as plastic, hair, and straw, as well as high-density objects such as plastic, stones, metal, and glass. Even rotten or diseased vegetables need to be selected and removed.

[0004] Traditionally, the removal of foreign objects from vegetables still relies mostly on manual labor, which is not only time-consuming and laborious, but also easily leads to incomplete removal of foreign objects. Furthermore, due to the low efficiency of human observation, the conveying speed of vegetables cannot be increased. When leafy vegetables such as cabbage are conveyed on the conveyor belt, only the top surface can be seen for signs of rot or disease. Without turning and stirring them over, it is impossible to observe the condition underneath, resulting in some diseased vegetables not being selected in time. Utility Model Content

[0005] To address the problem of traditional vegetable foreign object sorting, which still relies heavily on manual labor, is not only time-consuming and laborious but also prone to incomplete and ineffective foreign object sorting. Furthermore, the low efficiency of human observation limits the vegetable conveying speed. For example, leafy vegetables like cabbage can only be observed on the top surface for signs of rot or disease when transported by conveyor belt. Without turning and stirring them, the condition underneath cannot be observed, leading to some diseased vegetables not being sorted out in time. This invention provides a foreign object sorting machine for vegetable conveying.

[0006] A foreign object sorting machine for vegetable conveying includes two worktables. Several conveying rollers and a conveyor belt are rotatably mounted on the two worktables, both of which can be used to convey vegetables. A flow gap is provided between the conveying rollers. Several blowers are provided above the flow gaps and are connected to blowers. A guide plate is fixedly mounted below the conveying rollers. An inclined guide plate is also fixedly mounted at the conveying end of the conveying rollers. The conveyor belt is located at the inclined lower end of the guide plate. A turning roller is rotatably mounted above the conveyor belt to turn the vegetables. Optical cameras and push rods are provided on both sides of the turning roller to capture images and push the vegetables.

[0007] Furthermore, the two worktables are of different heights, with several conveying rollers set on the higher worktable. A set of support plates is also set on the outer wall and top wall of the worktable. A drive shaft is rotatably connected between the support plates on the outer wall. The drive shaft is fixedly connected to a drive motor set through a mounting bracket. Several external bevel gears are fixedly set on the outer wall of the drive shaft.

[0008] Furthermore, several conveyor rollers are rotatably arranged between the worktables, and one end of each roller passes through the side wall of the worktable and is fixedly equipped with an inner bevel gear. Several outer bevel gears and several inner bevel gears correspond to each other and mesh with each other. The guide plate is fixedly arranged on the top wall of the side wall of the worktable near the conveyor belt.

[0009] Furthermore, several air supply pipes are fixedly installed through another set of support plates. These air supply pipes are respectively located above the flow gap, and several air blowers are connected to the bottom of each air supply pipe. A blower is also fixedly installed on the outer wall of the support plate through a mounting bracket. A main air supply pipe is connected to the air outlet of the blower, and the other end of the main air supply pipe is connected to the air supply pipe.

[0010] Furthermore, the lower worktable is equipped with conveyor rollers at both ends, one of which is fixedly connected to the output shaft of a drive motor located on the outer wall of the worktable. The outer walls of the two conveyor rollers are adapted to the inner wall of the conveyor belt, which can drive the conveyor belt to achieve conveying.

[0011] Furthermore, four support frames are fixedly installed on the lower workbench. A geared motor is installed on the outer wall of the middle support frame, and a turning roller is installed on the output end of the geared motor. An optical camera is installed on the top of the two side support frames. The push rod includes an electric telescopic rod fixedly installed on the inner wall of the two side support frames, and a push plate is fixedly installed at the telescopic end of the electric telescopic rod.

[0012] Furthermore, collection boxes are movably placed below the guide plate, opposite the two push rods, and at the end of the conveyor belt. A control panel is also installed on the support frame, which is electrically connected to the drive motor, optical camera, blower, geared motor, and electric telescopic pole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the combination of the blower and the hair dryer allows lightweight foreign objects such as plastic, hair, and straw in vegetables to be blown into the flow gap by the hair dryer during the conveying process of the conveyor roller, and finally collected in the collection box. Then, when the conveyor belt is conveyed, high-density foreign objects such as plastic, stones, metal, and glass are pushed into the collection box by the push rod under the action of the optical camera and the control system of the control panel. The turning roller can turn the vegetables so that their bottom surface is facing up, and a second camera is used for comparison, making the selection of foreign objects more thorough. Attached Figure Description

[0014] Fig. 1 This is a front view schematic diagram of the structure of this utility model;

[0015] Fig. 2 This is a top view of the workbench 1, which has a relatively high structure according to this utility model.

[0016] Fig. 3 This is a top view of the low-profile workbench 1 of this utility model.

[0017] In the diagram: 1. Workbench; 2. Conveyor roller; 3. Conveyor belt; 4. Flow gap; 5. Air blower; 6. Guide plate; 7. Guide plate; 8. Air blower; 9. Tilting roller; 10. Optical camera; 11. Push rod; 12. Support plate; 13. Drive shaft; 14. Drive motor; 15. External bevel gear; 16. Internal bevel gear; 17. Air supply branch pipe; 18. Blower; 19. Main air supply pipe; 20. Conveyor roller; 21. Support frame; 22. Gear motor; 23. Electric telescopic rod; 24. Push plate; 25. Collection box; 26. Control panel. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Additionally, the term "multiple" should mean two or more.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The following will refer to the accompanying drawings. Figs. 1-3 The present invention will be described in detail with reference to the embodiments.

[0023] A foreign object sorting machine for vegetable transportation includes two worktables 1, each with a number of conveying rollers 2 and a conveyor belt 3 rotatably mounted on it, both of which can be used to transport vegetables. The two worktables 1 are of different heights, with the number of conveying rollers 2 mounted on the higher worktable 1. Vegetables are first placed on the conveying rollers 2 for transportation, and lightweight foreign objects such as plastic, hair, and straw are sorted out and removed. Then, the vegetables fall onto the lower conveyor belt 3 along the guide plate 7. High-density foreign objects such as plastic, stones, metal, and glass are sorted out and removed using an optical camera 10 and a push rod 11.

[0024] The outer wall and top wall of the workbench 1 are each provided with a set of support plates 12. A drive shaft 13 is rotatably connected between the support plates 12 on the outer wall. The drive shaft 13 is fixedly connected to the drive motor 14 which is mounted on the mounting bracket. Several external bevel gears 15 are fixedly provided on the outer wall of the drive shaft 13. When the drive motor 14 is started, it can drive the drive shaft 13 to rotate, that is, it synchronously drives several external bevel gears 15 to rotate.

[0025] Since several conveyor rollers 2 are rotatably arranged between the worktables 1, and one end of each roller passes through the side wall of the worktable 1 and is fixedly provided with an inner bevel gear 16, several outer bevel gears 15 and several inner bevel gears 16 correspond one to one and mesh with each other, and the guide plate 7 is fixedly arranged on the top wall of the side wall of the worktable 1 near the conveyor belt 3.

[0026] Several outer bevel gears 15 rotate synchronously, which can drive several inner bevel gears 16 to rotate synchronously, that is, enable several conveying rollers 2 to rotate synchronously, so as to convey vegetables.

[0027] A flow gap 4 is provided between several conveying rollers 2. Several blowers 5 are provided above each flow gap 4. The blowers 5 are connected to blowers 8. A guide plate 6 is fixedly provided below several conveying rollers 2. A collection box 25 is movably placed below the guide plate 6, opposite the two push rods 11, and at the conveying end of the conveyor belt 3. Under the action of the blowers 5, the wind blows lightweight foreign objects such as plastic, hair, and straw from the vegetables, which fall along the flow gap 4 onto the guide plate 6 below, and fall into the collection box 25 below along the inclined direction of the guide plate 6.

[0028] Several air supply pipes 17 are fixedly installed through another set of support plates 12. The air supply pipes 17 are respectively installed above the flow gap 4, and several blowers 5 are connected to the bottom of each air supply pipe 17. A blower 18 is also fixedly installed on the outer wall of the support plate 12 through a mounting bracket. An air supply main pipe 19 is connected to the air outlet of the blower 18. The other end of the air supply main pipe 19 is connected to the air supply pipe 17.

[0029] The blower 18 is a common type of electrically controlled blower in the prior art. After being powered on, the blower 18 can be started to blow air. The blown air enters the main air supply pipe 19 and is then transported along several branch air supply pipes 17 to the blower 5 to blow air onto the vegetables below, so that light foreign objects can be blown off the vegetables.

[0030] An inclined guide plate 7 is fixedly installed at the end of the conveying roller 2. The conveyor belt 3 is located at the lower end of the inclined guide plate 7. The vegetables fall along the guide plate 7 into the beginning of the conveying of the conveyor belt 3 below.

[0031] The lower workbench 1 has conveyor rollers 20 rotatably mounted at both ends. One of the conveyor rollers 20 is fixedly connected to the output shaft of the drive motor 14 located on the outer wall of the workbench 1. The outer walls of the two conveyor rollers 20 are adapted to the inner wall of the conveyor belt 3, which can drive the conveyor belt 3 to achieve conveying.

[0032] Starting the drive motor 14 can drive the conveyor roller 20 to rotate, which in turn causes the other conveyor roller 20 to rotate synchronously under the action of the conveyor belt 3. The outer walls of the two conveyor rollers 20 are adapted to the conveyor belt 3, so that the conveyor belt 3 can transport vegetables.

[0033] A turning roller 9 is rotatably mounted above the conveyor belt 3 to turn the vegetables. Four support frames 21 are also fixedly mounted on the lower worktable 1. A geared motor 22 is installed on the outer wall of the middle support frame 21. The turning roller 9 is located on the output end of the geared motor 22. When the geared motor 22 is started, the turning roller 9 can turn the vegetables and the turning speed can be controlled. The turning roller 9 includes a central rotating shaft set on the output end of the geared motor 22. Several turning walls are fixedly mounted on the outer wall of the central rotating shaft. The end of the turning wall that contacts the vegetables is made of rubber or polyurethane material, so that it can turn the vegetables without damaging them.

[0034] Optical cameras 10 and push rods 11 are installed on both sides of the turning roller 9, which can record and push the vegetables. The optical cameras 10 are installed at the top of the support frames 21 on both sides. The push rods 11 include electric telescopic rods 23 fixedly installed on the inner walls of the support frames 21 on both sides. The telescopic end of the electric telescopic rods 23 is fixedly installed with a push plate 24. A control panel 26 is also installed on the support frame 21. The control panel 26 is electrically connected to the drive motor 14, the optical cameras 10, the blower 18, the geared motor 22, and the electric telescopic rods 23.

[0035] The control panel 26 has a pre-installed PLC control system. This system automatically controls the start / stop and information reception of the drive motor 14, optical camera 10, blower 18, geared motor 22, and electric telescopic rod 23. The PLC control system is pre-programmed with information on foreign objects to be removed, as well as rotten or spoiled vegetables. When vegetables pass under the optical camera 10, the camera captures a photo, which is uploaded to the PLC control system and compared with the pre-stored information. Foreign objects that do not match the pre-stored information are processed, and the information is sent as a command. When a foreign object passes by, the electric telescopic rod 23 is activated, causing it to drive the pusher plate 24 to push the foreign object into the collection box 25 on the other side. Working in conjunction with the turning roller 9, this system can photograph and compare the vegetables from both above and below, selecting and removing vegetables that do not meet the pre-set criteria, resulting in a more thorough removal of foreign objects.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foreign object sorting machine for vegetable conveying, comprising two worktables (1), characterized in that: Several conveyor rollers (2) and conveyor belts (3) are rotatably mounted on two workbenches (1), which can be used to convey vegetables. A flow gap (4) is provided between the several conveyor rollers (2). Several blowers (5) are provided above the flow gaps (4). The blowers (5) are connected to the blower (8). A guide plate (6) is fixedly mounted below the several conveyor rollers (2). An inclined guide plate (7) is also fixedly mounted at the conveying end of the conveyor rollers (2). The conveyor belt (3) is located at the inclined lower end of the guide plate (7). A turning roller (9) is rotatably mounted above the conveyor belt (3) to turn the vegetables. An optical camera (10) and a push rod (11) are provided on both sides of the turning roller (9) to take pictures and push the vegetables.

2. A foreign object sorting machine for vegetable conveying according to claim 1, characterized in that: Two worktables (1) are of different heights. Several conveying rollers (2) are set on the higher worktable (1). The outer wall and top wall of the worktable (1) are respectively provided with a set of support plates (12). The support plates (12) on the outer wall are rotatably connected to a drive shaft (13). The drive shaft (13) is fixedly connected to a drive motor (14) set through a mounting frame. Several external bevel gears (15) are fixedly set on the outer wall of the drive shaft (13).

3. A foreign object sorting machine for vegetable conveying according to claim 2, characterized in that: Several conveyor rollers (2) are rotatably arranged between the worktables (1), and one end of each roller passes through the side wall of the worktable (1) and is fixedly provided with an inner bevel gear (16). Several outer bevel gears (15) and several inner bevel gears (16) correspond to each other and mesh with each other. The guide plate (7) is fixedly arranged on the top wall of the side wall of the worktable (1) near the conveyor belt (3).

4. A foreign object sorting machine for vegetable conveying according to claim 2, characterized in that: Several air supply pipes (17) are fixedly installed through another set of support plates (12). Several air supply pipes (17) are respectively installed above the flow gap (4), and several blowers (5) are connected at the bottom of each air supply pipe (17). A blower (18) is also fixedly installed on the outer wall of the support plate (12) through the mounting bracket. An air supply main pipe (19) is connected to the air outlet of the blower (18). The other end of the air supply main pipe (19) is connected to the air supply pipe (17).

5. A foreign object sorting machine for vegetable conveying according to claim 2, characterized in that: The lower workbench (1) has conveyor rollers (20) rotating at both ends. One of the conveyor rollers (20) is fixedly connected to the output shaft of the drive motor (14) located on the outer wall of the workbench (1). The outer walls of the two conveyor rollers (20) are adapted to the inner wall of the conveyor belt (3) to drive the conveyor belt (3) to achieve conveying.

6. A foreign object sorting machine for vegetable conveying according to claim 5, characterized in that: Four support frames (21) are fixedly installed on the lower workbench (1). A geared motor (22) is installed on the outer wall of the middle support frame (21). A turning roller (9) is installed on the output end of the geared motor (22). An optical camera (10) is installed on the top of the support frames (21) on both sides. The push rod (11) includes an electric telescopic rod (23) fixedly installed on the inner wall of the support frames (21) on both sides. A push plate (24) is fixedly installed at the telescopic end of the electric telescopic rod (23).

7. A foreign object sorting machine for vegetable conveying according to claim 3 or 6, characterized in that: Collection boxes (25) are movably placed below the guide plate (6), opposite the two push rods (11), and at the end of the conveyor belt (3). A control panel (26) is also installed on the support frame (21). The control panel (26) is electrically connected to the drive motor (14), optical camera (10), blower (18), geared motor (22), and electric telescopic rod (23).