Color sorter for agricultural products

Abstract

The utility model relates to the technical field of walnut processing equipment, in particular to an agricultural product color sorter which comprises a main body frame module, a primary material distribution module, a secondary material distribution module, a visual inspection module, a signal feedback module and an execution mechanism module are installed on the main body frame module, and the secondary material distribution module adopts a linear conveying belt. A plurality of material distribution air nozzles are installed on the secondary material distribution module, a glass disc is installed in the middle of the main body frame module, and the visual detection module comprises an upper shooting camera located on the upper portion of the glass disc and a lower shooting camera located on the lower portion of the glass disc. According to the agricultural product color sorter, the visual detection module adopts the high-precision upper shooting camera and the high-precision lower shooting camera and is matched with the annular first light source and the annular second light source, so that the agricultural products can be shot and detected in all directions from multiple angles. By means of the design, the recognition precision and reliability are greatly improved, and the color sorter can more accurately grade and classify agricultural products according to the characteristics of colors, shapes, textures and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of walnut processing equipment, in particular to a color sorting machine for agricultural products. Background Art

[0002] In the field of agricultural product processing, color sorting technology is an important technical means to grade and classify agricultural products according to color, shape, texture and other characteristics. This technology is of great significance for improving the quality of agricultural products, meeting market demand and increasing product value. Traditional agricultural product color sorting mainly relies on manual work, but manual color sorting has problems such as low efficiency, low accuracy and high labor intensity.

[0003] With the development of science and technology, automated color sorters are gradually being used in the agricultural product processing industry to improve production efficiency and product quality. However, existing color sorters still have some problems when processing agricultural products such as walnuts, such as uneven distribution, low recognition accuracy, and slow actuator response. These problems not only affect the performance of the color sorter, but also limit its wide application in the agricultural product processing industry. Utility Model Content

[0004] The purpose of the utility model is to provide an agricultural product color sorter to solve the problems of the existing color sorters mentioned in the above background technology when processing agricultural products such as walnuts, such as uneven material distribution, low recognition accuracy, slow response of the actuator, etc.

[0005] To achieve the above-mentioned purpose, the utility model provides an agricultural product color sorter, including a main frame module, on which a primary material distribution module, a secondary material distribution module, a visual inspection module, a signal feedback module and an actuator module are installed, the secondary material distribution module adopts a linear conveyor belt, and a plurality of material distribution air nozzles are installed on the secondary material distribution module, a glass plate is installed in the middle of the main frame module, the visual inspection module includes an upper camera located on the upper part of the glass plate and a lower camera located on the lower part of the glass plate, and the actuator module includes a lower annular bracket and an upper annular bracket, and a plurality of actuator air nozzle assemblies and a reflux mechanism are installed on the inner sides of the lower annular bracket and the upper annular bracket.

[0006] Preferably, the primary material distribution module adopts a circular vibration plate.

[0007] Preferably, an electrical control module is also installed on the main frame module.

[0008] Preferably, a debris receiving pipe is arranged on the outer side of the secondary material distributing module near the distributing air nozzle, and a distributing module supporting leg is installed on the bottom of the secondary material distributing module.

[0009] Preferably, the secondary material distribution module is provided with a material displacing baffle near the glass plate, and a cleaning brush is provided at one end of the secondary material distribution module, and an impurity receiving trough is provided below the cleaning brush.

[0010] Preferably, a path arranging mechanism is installed on one side of the glass plate, and the path arranging mechanism comprises an outer arranging bracket and an inner arranging bracket.

[0011] Preferably, a first annular light source is installed above the downward-shooting camera, and a second annular light source is installed below the upward-shooting camera.

[0012] Preferably, the actuator air nozzle assembly includes a valve group fixing bracket, a pneumatic valve is installed on the valve group fixing bracket, an actuator air nozzle fixing plate is installed on the bottom of one end of the valve group fixing bracket, an actuator air nozzle is installed on the actuator air nozzle fixing plate, a material receiving pipe is arranged on one side of the lower part of the actuator air nozzle assembly, the reflux mechanism includes a reflux bracket, a clamping plate is installed on the bottom of one end of the reflux bracket through a fixed angle piece, and a scraper is installed on the bottom of the clamping plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In this agricultural product color sorter, the visual inspection module uses a high-precision upper camera and a lower camera, which, together with the annular first light source and the second light source, can perform all-round photography and inspection of agricultural products from multiple angles. This design greatly improves the accuracy and reliability of recognition, allowing the color sorter to more accurately grade and classify agricultural products based on color, shape, texture and other characteristics. Through the execution air nozzle assembly installed on the inner side of the lower annular bracket and the upper annular bracket, the color sorter can quickly and accurately perform grading and classification operations. At the same time, the existence of the reflux mechanism allows agricultural products that do not meet the requirements to be promptly refluxed for re-color sorting, thereby further improving the efficiency and accuracy of color sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is one of the structural schematic diagrams of the secondary material distribution module in the utility model;

[0017] Figure 3 This is the second structural schematic diagram of the secondary material distribution module in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the visual detection module in the utility model;

[0019] Figure 5 This is one of the structural schematic diagrams of the actuator module in the utility model;

[0020] Figure 6 This is the second structural diagram of the actuator module in the utility model;

[0021] Figure 7 It is a partial structural schematic diagram of the actuator module in the utility model;

[0022] Figure 8 It is a structural schematic diagram of the reflux mechanism in the utility model;

[0023] Fig. 9 It is a structural schematic diagram of the path arrangement mechanism in the utility model.

[0024] The meaning of each number in the figure is:

[0025] 1. Primary material distribution module; 2. Secondary material distribution module; 201. Material distribution air nozzle; 202. Debris receiving pipe; 203. Material shifting baffle; 204. Cleaning brush; 205. Impurity receiving trough; 206. Material distribution module support leg; 3. Electrical control module; 4. Main frame module; 401. Glass plate; 5. Visual inspection module; 501. Down camera; 502. Up camera; 503. First light source; 504. Second light source; 6. Signal Feedback module; 7. Actuator module; 701. Pneumatic valve; 702. Valve group fixing bracket; 703. Actuator nozzle fixing plate; 704. Actuator nozzle; 710. Material receiving pipe; 711. Lower annular bracket; 712. Upper annular bracket; 72. Backflow mechanism; 720. Backflow bracket; 721. Clamp; 722. Scraper; 723. Fixed angle piece; 8. Path sorting mechanism; 801. External sorting bracket; 802. Internal sorting bracket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a color sorting machine for agricultural products, such as Figure 1-Figure 9As shown, it includes a main frame module 4, on which are installed a primary cloth module 1, a secondary cloth module 2, a visual inspection module 5, a signal feedback module 6 and an actuator module 7. The secondary cloth module 2 adopts a linear conveyor belt, and a plurality of cloth air nozzles 201 are installed on the secondary cloth module 2. A glass plate 401 is installed in the middle of the main frame module 4. The visual inspection module 5 includes an upper camera 502 located on the upper part of the glass plate 401 and a lower camera 501 located on the lower part of the glass plate 401. The actuator module 7 includes a lower annular bracket 711 and an upper annular bracket 712. A plurality of actuator air nozzle assemblies and a reflux mechanism 72 are installed on the inner sides of the lower annular bracket 711 and the upper annular bracket 712. The signal feedback module 6 adopts a photoelectric sensor, which provides a signal after the walnut kernel passes through. The visual inspection module 5 identifies and determines the result of the walnut kernel, and opens the corresponding outlet solenoid valve to blow it out according to which category it belongs to.

[0028] In this embodiment, the primary material distribution module 1 adopts a circular vibration plate.

[0029] Specifically, an electrical control module 3 is also installed on the main frame module 4. The main frame module 4 is welded by square tubes, has universal wheels at the bottom, and a large base plate is fixed on the top. The base plate provides an installation reference for other modules. A servo motor is installed under the large flat plate. The servo motor drives a hollow rotating platform. The upper surface of the hollow rotating platform is installed with a lower aluminum plate, an aluminum plate and equal high columns, and an upper aluminum plate from bottom to top. A circular hollow glass plate 401 is installed on the upper surface of the upper aluminum plate. The electrical control module 3 integrates all electrical components, displays, keyboards, etc. of the whole machine into a cabinet.

[0030] Furthermore, a debris receiving pipe 202 is provided on the outer side of the secondary material distributing module 2 near the material distributing air nozzle 201 , and a material distributing module support leg 206 is installed at the bottom of the secondary material distributing module 2 .

[0031] Furthermore, a material-moving baffle 203 is installed near the glass plate 401 of the secondary material-distributing module 2 , a cleaning brush 204 is installed at one end of the secondary material-distributing module 2 , and an impurity receiving trough 205 is provided below the cleaning brush 204 .

[0032] It is worth noting that the linear speed of the secondary feeding module 2 is slightly faster than that of the primary feeding module 1, which is used for acceleration. The overlapping walnut kernels of the primary feeding will be pulled apart by a certain distance, and the raw materials from the primary feeding module will fall on the driven end of the conveyor belt of the secondary feeding module; then 100mm away, air is blown by a needle-shaped air nozzle with a small aperture and high air pressure. After the air flow diffuses, the debris, leaves, etc. in the raw materials can be removed. There is an impurity receiving port opposite the air nozzle, and the impurities received flow into the carton or plastic box under the bottom plate; further back, there is an angled baffle, which blocks the raw materials onto the glass at a certain angle; there is a gap between the baffle and the conveyor belt, and the impurities stuck on the belt will be transmitted to the active end of the conveyor belt, and there is a receiving port in front of the active wheel. A brush is installed in the receiving port to wipe off the debris stuck on the conveyor belt and the oil mud of the walnut kernels. The brush and conveyor belt should be cleaned regularly.

[0033] Furthermore, a path sorting mechanism 8 is installed on one side of the glass plate 401. The path sorting mechanism 8 includes an outer sorting bracket 801 and an inner sorting bracket 802. After the walnut kernels are loaded onto the glass plate, the outer sorting bracket 801 and the inner sorting bracket 802 of the mechanism will adjust the path to the center of the camera to ensure that there are no abnormalities in taking pictures, such as taking half of the picture, out of the field of view, etc.

[0034] Furthermore, a first annular light source 503 is installed above the downward camera 501 , and a second annular light source 504 is installed below the upward camera 502 .

[0035] Furthermore, the execution air nozzle assembly includes a valve group fixing bracket 702, on which a pneumatic valve 701 is installed, an execution air nozzle fixing plate 703 is installed at the bottom of one end of the valve group fixing bracket 702, on which an execution air nozzle 704 is installed, a material receiving pipe 710 is arranged on one side of the lower part of the execution air nozzle assembly, and a reflux mechanism 72 includes a reflux bracket 720, on which a clamping plate 721 is installed at the bottom of one end of the reflux bracket 720 through a fixed angle piece 723, and a scraper 722 is installed at the bottom of the clamping plate 721. The function of the reflux mechanism 72 is that for materials that cannot be processed, the materials will be scraped to a material receiving port by the baffle passing through here. The material receiving port passes through the bottom plate and is on the outside of the glass. A carton is placed underneath to collect the unprocessed materials; the accumulated impurities on the glass are scraped off to make the camera recognition more accurate and improve the accuracy.

[0036] It is worth noting that the executive air nozzle assembly is composed of 9 identical modules arranged in a semicircle, which are installed on the base plate through equal-height columns. There are two layers of annular brackets on it. The discharge port is installed on the lower surface of the lower annular bracket, and the solenoid valve assembly is installed on the lower surface of the upper annular bracket. The solenoid valve assembly is adjustable along the center direction of the circle, and the solenoid valve line and air pipe are arranged and fixed in the hook under the upper annular bracket.

[0037] When the agricultural product color sorter of the utility model is in use, the material first undergoes primary sorting at the primary distribution module 1 and flows to the secondary distribution module 2. The secondary distribution module 2 will accelerate the material to a certain extent, and the linear speed is basically consistent with the linear speed of the glass plate and there is a certain gap between the materials. The finished product is transferred to the glass plate 401 through the material transfer baffle 203, and is sorted by the sorting bracket 801. The material moves in a circle along the center path of the lens, and the position and front and back states of the material are recorded by the signal feedback module 6. The visual detection module 5 takes photos of the material type from top to bottom at the same time, and executes at the 9 channel ports of the actuator module 7 after algorithm and model judgment. The material that is determined to be unexecutable will be scraped to the material receiving port through the scraper 722, and the whole action is completed.

[0038] It is fixed on the bottom plate of the serial number main frame module 4 through the material distribution module support leg 206. The raw material from the primary feeding module 1 in the main machine falls on the driven end of the conveyor belt of the secondary material distribution module 2; then it passes through the material distribution air nozzle 201, and the airflow removes the debris, leaves, etc. in the raw material and blows it to the debris receiving port 202. The impurities received by the debris receiving port 202 flow into the carton or plastic box under the bottom plate; the material passes through the material baffle 203, and the raw material is blocked onto the glass at a certain angle; the material baffle 203 has a gap from the conveyor belt, and the impurities stuck on the belt will be transmitted to the active end of the conveyor belt. There is an impurity receiving port 205 in front of the active wheel, and a cleaning brush 204 is installed in the impurity receiving port 205, which can brush off the debris stuck on the conveyor belt, the oil mud of the walnut kernel, etc.

[0039] Finally, it should be noted that the electronic components in the electrical control module 3, pneumatic valve 701, etc. in this embodiment are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires respectively, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0040] When the material passes through the visual inspection module on the glass plate 401, the lower camera 501 and the upper camera 502 take pictures at the same time, and the first light source 503 and the second light source 504 illuminate to identify and determine the material results. The corresponding outlet pneumatic valve 701 is opened to blow out the material according to the category it belongs to. After the material is judged to be executed by the pneumatic valve 701, the execution air nozzle 703 blows it in the direction of the material receiving port 710, and the material moves in the direction of the material receiving port and falls into the material receiving port 710. The bottom surface of the execution air nozzle 704 is about 3mm away from the upper surface of the glass plate. The reflux bracket 720 is fixed on the lower surface of the upper annular bracket 712, and the scraper 722 is attached to the surface of the glass plate 401. The scraper 722 is made of soft material and does not damage the glass. For materials that cannot be processed, they will be scraped to a receiving port by the baffle after passing through here. The receiving port penetrates the bottom plate and is on the outside of the glass. A carton is placed below to collect the unprocessed materials, and the accumulated impurities on the glass can be scraped off, so that the camera can recognize more accurately and improve the accuracy.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An agricultural product color sorter, comprising a main frame module (4), characterized in that: The main frame module (4) is equipped with a primary material distribution module (1), a secondary material distribution module (2), a visual inspection module (5), a signal feedback module (6) and an actuator module (7); the secondary material distribution module (2) adopts a linear conveyor belt; the secondary material distribution module (2) is equipped with a plurality of material distribution air nozzles (201); a glass plate (401) is installed in the middle of the main frame module (4); the visual inspection module (5) comprises an upper camera (502) located on the upper part of the glass plate (401) and a lower camera (501) located on the lower part of the glass plate (401); the actuator module (7) comprises a lower annular bracket (711) and an upper annular bracket (712); a plurality of actuator air nozzle assemblies and a reflux mechanism (72) are installed on the inner sides of the lower annular bracket (711) and the upper annular bracket (712).

2. The agricultural product color sorter according to claim 1, characterized in that: The primary material distribution module (1) adopts a circular vibration plate.

3. The agricultural product color sorter according to claim 1, characterized in that: An electrical control module (3) is also installed on the main frame module (4).

4. The agricultural product color sorter according to claim 1, characterized in that: A debris receiving pipe (202) is provided on the outer side of the secondary material distributing module (2) near the material distributing air nozzle (201), and a material distributing module support leg (206) is installed at the bottom of the secondary material distributing module (2).

5. The agricultural product color sorting machine according to claim 4, characterized in that: The secondary material distribution module (2) is provided with a material displacing baffle (203) near the glass plate (401), and one end of the secondary material distribution module (2) is provided with a cleaning brush (204), and an impurity receiving trough (205) is provided below the cleaning brush (204).

6. The agricultural product color sorter according to claim 1, characterized in that: A path arranging mechanism (8) is installed on one side of the glass plate (401), and the path arranging mechanism (8) comprises an outer arranging bracket (801) and an inner arranging bracket (802).

7. The agricultural product color sorter according to claim 1, characterized in that: A first annular light source (503) is installed above the downward camera (501), and a second annular light source (504) is installed below the upward camera (502).

8. The agricultural product color sorter according to claim 1, characterized in that: The actuator air nozzle assembly comprises a valve group fixing bracket (702), a pneumatic valve (701) is installed on the valve group fixing bracket (702), an actuator air nozzle fixing plate (703) is installed on the bottom of one end of the valve group fixing bracket (702), an actuator air nozzle (704) is installed on the actuator air nozzle fixing plate (703), a material receiving pipe (710) is arranged on one side of the lower part of the actuator air nozzle assembly, and the reflux mechanism (72) comprises a reflux bracket (720), a clamping plate (721) is installed on the bottom of one end of the reflux bracket (720) through a fixing angle piece (723), and a scraper (722) is installed on the bottom of the clamping plate (721).

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