Sorting device for quality detection of picked fruits

Abstract

The invention is applicable to the technical field of fruit sorting, and particularly relates to a sorting device for quality detection of picked fruits, which comprises a sorting mechanism and a detection mechanism, the sorting mechanism comprises a sorting cylinder, the sorting cylinder is provided with a plurality of sorting areas, and sorting holes formed in the sorting cylinder in different sorting areas are different in aperture; the detection mechanism comprises a conveying belt, a fruit pushing mechanism is arranged on the conveying belt, fruits sliding from the material guiding hopper fall on the fruit pushing mechanism, and the fruits are sequentially pushed to the conveying belt one by one through the fruit pushing mechanism; the detection mechanism further comprises an appearance detection module, and the appearance detection module is used for conducting appearance detection on the fruits sequentially arranged on the conveying belt one by one. The sorting mechanism sorts the fruits based on the sizes and the shapes of the fruits so as to obtain the fruits with the shapes and the sizes meeting the requirements; and the detection mechanism performs inspection based on the appearance condition of the fruits so as to obtain the fruits with the appearance quality meeting the requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of fruit sorting, and particularly relates to a sorting device for post-harvest quality detection of fruits. Background Art

[0002] Fruits are plant fruits containing more moisture and sugar. Fruits refer to juicy and mostly sweet plant fruits that can be eaten raw directly, which not only contain rich nutrients but also help digestion. Fruits have health care functions such as lowering blood pressure, slowing down aging, losing weight, skin care, improving eyesight, anti-cancer, reducing cholesterol and supplementing vitamins.

[0003] Since the fruits on fruit trees vary in size, and fruits of different sizes usually have different selling prices. Traditional fruit sorting mainly sorts fruits through a fruit sorter according to the diameter of the fruits. The sorting operation is to screen fruits according to standards such as weight, size, and quality. Sorting fruits by size can be sold at different prices, which can bring more economic benefits.

[0004] The fruit sorting devices in related technologies are only limited to screening using a screening mesh cylinder. Its principle is to sort fruits according to the aperture size of the mesh cylinder. This form is relatively single and cannot inspect the appearance quality of fruits, resulting in the sorting effect and efficiency not meeting the requirements. Summary of the Invention

[0005] An object of an embodiment of the present invention is to provide a sorting device for post-harvest quality detection of fruits, aiming to solve the technical problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions.

[0007] An embodiment of the present invention provides a sorting device for post-harvest quality detection of fruits, including:

[0008] A sorting mechanism and a detection mechanism;

[0009] The sorting mechanism includes a sorting cylinder, and the sorting cylinder has a plurality of sorting regions, and the aperture diameters of the sorting holes opened on the sorting cylinder in different sorting regions are different;

[0010] The detection mechanism includes a conveyor belt, on which a fruit pushing mechanism is arranged. The fruits sliding down from the feeding funnel fall onto the fruit pushing mechanism, and the present invention uses the fruit pushing mechanism to push the fruits one by one onto the conveyor belt in sequence; the detection mechanism further includes an appearance detection module, which is used to perform one-by-one appearance detection on the fruits arranged in sequence on the conveyor belt; the fruit pushing mechanism includes two sets of pushing augers that cooperate with each other and rotate in the same direction. A pushing cavity is formed between the two sets of pushing augers. The fruits to be inspected that need to be pushed are arranged in sequence on the pushing cavity. As the two sets of pushing augers rotate in the same direction, the pushing of the fruits to be inspected is realized.

[0011] Furthermore, the sorting device for post-harvest quality detection of fruits in the present invention further includes a feeding funnel, which is used to collect the fruits discharged from the sorting mechanism and guide them to slide onto the detection mechanism;

[0012] The number of feeding funnels is multiple, and the multiple feeding funnels correspond to multiple sorting areas one by one. Each feeding funnel is respectively supported and fixedly installed on the corresponding second column. The feeding funnel is inclined, which is convenient for the fruits on the feeding funnel to slide; a feeding port is opened at the bottom of the inclined surface of the feeding funnel.

[0013] Furthermore, the sorting mechanism further includes a feeding box for adding fruits to be inspected into the sorting cylinder. The feeding box is supported and fixedly arranged above the sorting cylinder through a feeding pipe, and the bottom of the feeding box is communicated with a feeding pipe. The other end of the feeding pipe coaxially penetrates and rotates into the sorting cylinder, so that when the sorting cylinder rotates, it does not affect adding the fruits in the feeding box into the sorting cylinder through the feeding pipe.

[0014] Furthermore, the sorting driving member includes a sorting motor, and a driving gear is coaxially and fixedly installed on the output shaft of the sorting motor. The sorting motor is used to drive the driving gear to rotate by connecting to the power supply and starting; the sorting driving member further includes a driven gear ring coaxially and fixedly sleeved on the outer circle of the feeding pipe, and the driven gear ring meshes with the driving gear. Therefore, when the sorting motor starts, under the connection action of the meshing driving gear and the driven gear ring, the sorting cylinder is driven to rotate. The rotating sorting cylinder is beneficial to the rolling of the fruits in the sorting cylinder, and can enable the fruits in the sorting cylinder to quickly pass through the corresponding sorting holes.

[0015] Furthermore, the fruit pushing mechanism further includes a pushing motor for driving the two sets of pushing augers to rotate in the same direction. The pushing motor is supported and fixedly installed on the motor bracket. A pushing rotating shaft is coaxially and fixedly arranged on each set of pushing augers. The two pushing rotating shafts are both supported and rotatably arranged on the motor bracket. The output shaft of the pushing motor is drivingly connected to one of the pushing rotating shafts, and the two pushing rotating shafts are connected by a transmission belt to achieve the effect of driving the two sets of pushing augers to rotate in the same direction by using the pushing motor.

[0016] Further, the appearance detection module includes an L-shaped support rod. The end of the horizontal part of the L-shaped support rod is fixedly connected to the output shaft of the forward and reverse servo motor, and the forward and reverse servo motor is fixedly installed on the detection bracket. The detection host is detachably installed on the vertical part of the L-shaped support rod.

[0017] A detection camera is arranged on the detection host. The detection camera is used to acquire images of the fruits to be detected, and image recognition algorithms are used to analyze the images to obtain the detection results of the appearance quality of the fruits to be detected.

[0018] Further, a mounting sleeve is fixedly arranged on the detection host. The mounting sleeve is sleeved on the vertical part of the L-shaped support rod. Mounting screw holes are provided on both the mounting sleeve and the L-shaped support rod. The mounting sleeve sleeved on the vertical part of the L-shaped support rod is fixed by mounting bolts that cooperate with the mounting screw holes.

[0019] Further, a number of supplementary light beads are also arranged on the detection host. The number of supplementary light beads are distributed in a circular array around the detection camera to supplement light for the shooting environment of the detection camera.

[0020] Compared with the prior art, the beneficial effects of the sorting device for detecting the post-harvest quality of fruits in the present invention are as follows:

[0021] First, the sorting mechanism of the present invention includes a sorting cylinder. There are multiple sorting areas on the sorting cylinder, and the apertures of the sorting holes provided on the sorting cylinder in different sorting areas are different to sort out fruits that meet the size requirements.

[0022] Second, the fruit pushing mechanism of the present invention includes two groups of cooperating pushing augers. A pushing cavity is formed between the two groups of pushing augers. The fruits to be detected that need to be pushed are arranged in sequence on the pushing cavity. As the two groups of pushing augers rotate in the same direction, the pushing of the fruits to be detected is realized. When the fruits to be detected are released during the pushing process, the fruits to be detected can be released one by one. Therefore, after releasing one fruit to be detected, the fruit pushing mechanism can be closed and the conveyor belt can be kept running. Therefore, the released fruit to be detected can be sent to the detection station of the appearance detection module, and then the appearance of this fruit to be detected can be detected by the appearance detection module. After the detection is completed, the fruit pushing mechanism is started again to perform the pushing and appearance detection work of the next fruit to be detected.

[0023] Third, by starting the forward and reverse servo motor, the appearance detection module of the present invention can make the detection host move around the fruit to be detected in a circular motion to obtain a captured image of one circle of the fruit to be detected through the supplementary light beads. It is convenient to use and has a good appearance detection effect on the fruit to be detected.

[0024] In summary, the sorting mechanism of the present invention sorts fruits based on the size and shape of the fruits to obtain fruits with the required size and shape; the detection mechanism inspects based on the appearance of the fruits to obtain fruits with the required appearance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0026] Figure 1 It is a three-dimensional structure diagram of a sorting device for post-harvest quality detection of fruits according to the present invention;

[0027] Figure 2 It is a top view of the sorting device for post-harvest quality detection of fruits according to the present invention;

[0028] Figure 3 It is a front view of the sorting device for post-harvest quality detection of fruits according to the present invention;

[0029] Figure 4 It is a left view of the sorting device for post-harvest quality detection of fruits according to the present invention;

[0030] Figure 5 It is a right view of the sorting device for post-harvest quality detection of fruits according to the present invention;

[0031] Figure 6 It is a schematic structural diagram of the fruit pushing mechanism provided by the present invention;

[0032] Figure 7 It is a schematic structural diagram of the appearance detection module provided by the present invention;

[0033] Figure 8 It is a schematic structural diagram of the feeding funnel provided by the present invention.

[0034] The reference numerals are as follows:

[0035] 100, conveyor belt; 200, sorting cylinder; 201, feeding box; 202, blanking pipe; 203, first column; 204, sorting holes; 205, sorting drive; 2051, sorting motor; 2052, drive gear; 2053, driven gear ring; 300, material guiding funnel; 301, second column; 302, material guiding opening; 400, fruit pushing mechanism; 401, pushing motor; 402, motor bracket; 403, pushing rotating shaft; 404, transmission belt; 405, pushing auger; 406, pushing cavity; 500, appearance detection module; 501, forward and reverse servo motor; 502, detection bracket; 503, L-shaped support rod; 504, mounting screw holes; 505, detection host; 506, mounting sleeve; 507, detection camera; 508, supplementary light beads; 600, fruits to be inspected. Detailed implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0037] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0038] Please refer to Figure 1 , in an embodiment of the present invention, a sorting device for post-harvest quality inspection of fruits is provided, including a sorting mechanism and a detection mechanism. The sorting mechanism sorts fruits based on their size and shape to obtain fruits with the required size and shape; the detection mechanism checks the appearance of fruits to obtain fruits with qualified appearance quality.

[0039] Among them, as Figures 1 - 4 shown, in an embodiment of the present invention, the sorting mechanism includes a sorting cylinder 200. The sorting cylinder 200 has multiple sorting areas, and the apertures of the sorting holes 204 opened on the sorting cylinder 200 in different sorting areas are different to sort out fruits that meet the size requirements; only two sorting areas are shown in the illustration of the present invention. In actual use, a sorting cylinder 200 with more sorting areas can be selected according to needs;

[0040] Furthermore, the sorting mechanism further includes a feeding box 201 for adding fruits 600 to be inspected into the sorting cylinder 200. The feeding box 201 is supported and fixed above the sorting cylinder 200 through a blanking pipe 202, and the bottom of the feeding box 201 is connected and provided with a blanking pipe 202. The other end of the blanking pipe 202 coaxially penetrates and rotates into the sorting cylinder 200 so that when the sorting cylinder 200 rotates, it does not affect adding the fruits in the feeding box 201 into the sorting cylinder 200 through the blanking pipe 202;

[0041] The blanking pipe 202 is supported and fixed by the first column 203. In actual use, to improve the overall structural stability, more column structures can be used to support and fix components such as the feeding box 201 and the sorting cylinder 200, and no specific limitation is made.

[0042] Please continue to refer to Figure 3 and Figure 4 In the implementation manner of the sorting driving member 205 provided in the embodiment of the present disclosure, the sorting driving member 205 includes a sorting motor 2051. A driving gear 2052 is coaxially and fixedly installed on the output shaft of the sorting motor 2051. The driving gear 2052 is driven to rotate by the sorting motor 2051 powered on and started. The sorting driving member 205 further includes a driven gear ring 2053 coaxially and fixedly sleeved on the outer circle of the blanking pipe 202. The driven gear ring 2053 meshes with the driving gear 2052. Therefore, when the sorting motor 2051 is started, under the connection action of the meshing driving gear 2052 and the driven gear ring 2053, the sorting cylinder 200 is driven to rotate. The rotating sorting cylinder 200 is beneficial to the rolling of the fruits in the sorting cylinder 200, and can enable the fruits in the sorting cylinder 200 to quickly pass through the corresponding sorting holes 204.

[0043] Please continue to refer to Figures 1 - 5 、 Figure 8 The sorting device for post - harvest quality detection of fruits of the present invention further includes a guide funnel 300. The guide funnel 300 is used to collect the fruits discharged from the sorting mechanism and guide them to slide onto the detection mechanism.

[0044] Among them, the number of the guide funnels 300 is multiple. Specifically, the multiple guide funnels 300 correspond to multiple sorting areas one by one. Each guide funnel 300 is respectively supported and fixedly installed on the corresponding second column 301. The guide funnel 300 is inclined, which is convenient for the fruits on the guide funnel 300 to slide. A guide opening 302 is provided at the bottom end of the inclined surface of the guide funnel 300. The size of the guide opening 302 can be set larger to facilitate fruits of different sizes to slide out and fall through the guide opening 302.

[0045] Optionally, the sorting cylinder 200 provided in the embodiment of the present invention should have a window with a detachable connection. When the sorting mechanism stops, the window of the sorting cylinder 200 can be opened to clean the remaining fruits in the sorting cylinder 200. During the working process of the sorting mechanism, the window is in a closed state. The detachable connection window is a setting of conventional technology and will not be elaborated.

[0046] Please continue to refer to Figures 1 - 4In an embodiment of the present invention, the detection mechanism includes a conveyor belt 100, and a fruit pushing mechanism 400 is provided on the conveyor belt 100. The fruit sliding off the guide funnel 300 falls on the fruit pushing mechanism 400. The present invention uses the fruit pushing mechanism 400 to push the fruits one by one onto the conveyor belt 100 in sequence; the detection mechanism also includes an appearance detection module 500, which is used to perform appearance inspection on the fruits arranged in sequence on the conveyor belt 100 one by one.

[0047] The conveyor belt 100 of the embodiment of the present invention can be a conventional conveyor belt assembly. For example, the fruit 600 to be inspected is conveyed by a conveyor belt installed on a conveyor roller, and the conveyor roller is driven by a motor to operate, thereby realizing the conveyance of the fruit.

[0048] like Figures 1 - 6 As shown, in the embodiment of the present invention, the fruit pushing mechanism 400 includes two groups of pushing augers 405 that cooperate with each other, and a pushing cavity 406 is formed between the two groups of pushing augers 405. The fruits 600 to be inspected that need to be pushed are arranged in sequence and placed on the pushing cavity 406. As the two groups of pushing augers 405 rotate in the same direction, the fruits 600 to be inspected are pushed. When the fruits 600 to be inspected are released during the pushing process, the fruits 600 to be inspected can be released one by one. Therefore, after releasing one fruit 600 to be inspected, the fruit pushing mechanism 400 can be closed and the conveyor belt 100 can be kept open. Therefore, the released fruit 600 to be inspected can be sent to the inspection station of the appearance inspection module 500, and then the appearance inspection module 500 is used to perform appearance inspection on the fruit 600 to be inspected. After the inspection is completed, the fruit pushing mechanism 400 is started again to push and inspect the appearance of the next fruit 600 to be inspected.

[0049] Among them, such as Figure 6 As shown, the fruit pushing mechanism 400 of the present invention also includes a pushing motor 401 for driving two groups of pushing augers 405 to rotate in the same direction. The pushing motor 401 is supported and fixedly installed on the motor bracket 402. A pushing shaft 403 is coaxially fixed on each group of pushing augers 405. The two pushing shafts 403 are both supported and rotatable on the motor bracket 402. The output shaft of the pushing motor 401 is driven and connected to one of the pushing shafts 403, and the two pushing shafts 403 are connected by a transmission belt 404 to achieve the effect of using the pushing motor 401 to drive the two groups of pushing augers 405 to rotate in the same direction.

[0050] See also Figure 2 , Figure 3 and Figure 7, the appearance detection module 500 includes an L-shaped support rod 503. The end of the horizontal part of the L-shaped support rod 503 is fixedly connected to the output shaft of the forward and reverse servo motor 501, and the forward and reverse servo motor 501 is fixedly installed on the detection bracket 502; a detection host 505 is detachably installed on the vertical part of the L-shaped support rod 503;

[0051] Among them, an installation sleeve 506 is fixedly arranged on the detection host 505. The installation sleeve 506 is sleeved on the vertical part of the L-shaped support rod 503. Installation screw holes 504 are provided on both the installation sleeve 506 and the L-shaped support rod 503. The installation sleeve 506 sleeved on the vertical part of the L-shaped support rod 503 is fixed by an installation bolt that matches the installation screw hole 504;

[0052] A detection camera 507 is arranged on the detection host 505. The detection camera 507 is used to acquire an image of the fruit 600 to be detected, and analyze the image using an image recognition algorithm to obtain a detection result of the appearance quality of the fruit 600 to be detected; a plurality of supplementary light beads 508 are also arranged on the detection host 505. The plurality of supplementary light beads 508 are arranged in a circumferential array around the detection camera 507 for filling light for the shooting environment of the detection camera 507.

[0053] During specific implementation, by starting the forward and reverse servo motor 501, the detection host 505 can be made to move around the fruit 600 to be detected in a circular motion, so as to obtain a circular shooting image of the fruit 600 to be detected through the supplementary light beads 508. It is convenient to use and has a good appearance detection effect on the fruit 600 to be detected.

[0054] Optionally, in the image recognition algorithm of the embodiment of the present invention, the YOLOv8x target detection network model is used as the base model of the image recognition model, and the multi-head self-attention mechanism is integrated into the YOLOv8x framework to improve the ability of the model to obtain the global view of the picture. On this basis, a small target detection layer is added to enhance the model's attention to small damaged areas of fruits and enhance the model's adaptability to damaged areas of fruits of different sizes.

[0055] The above solutions are only illustrations of a preferred example, but are not limited thereto. When implementing the present invention, appropriate replacements and / or modifications can be made according to the needs of users.

[0056] The number of devices and the processing scale described here are used to simplify the description of the present invention. The applications, modifications, and changes of the present invention are obvious to those skilled in the art.

[0057] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those skilled in the art, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. A sorting device for detecting the post - harvest quality of fruits, characterized in that, Including: A sorting mechanism and a detection mechanism; The sorting mechanism includes a sorting cylinder (200), and there are multiple sorting areas on the sorting cylinder (200). The apertures of the sorting holes (204) opened on the sorting cylinder (200) in different sorting areas are different; The detection mechanism includes a conveyor belt (100). A fruit pushing mechanism (400) is arranged on the conveyor belt (100), and the fruits sliding down from the feeding funnel (300) fall on the fruit pushing mechanism (400); the detection mechanism further includes an appearance detection module (500), and the appearance detection module (500) is used for performing one-by-one appearance detection on the fruits arranged in sequence on the conveyor belt (100); the fruit pushing mechanism (400) includes two groups of pushing augers (405) that cooperate with each other and rotate in the same direction, and a pushing cavity (406) is formed between the two groups of pushing augers (405).

2. The sorting device for post-harvest quality detection of fruits according to claim 1, characterized in that, It further includes a feeding funnel (300), and the feeding funnel (300) is used for collecting the fruits discharged by the sorting mechanism and guiding them to slide onto the detection mechanism; The number of the feeding funnels (300) is multiple, and the multiple feeding funnels (300) correspond to the multiple sorting areas one by one. The feeding funnels (300) are inclined; A feeding port (302) is opened at the bottom end of the inclined surface of the feeding funnel (300).

3. The sorting device for post-harvest quality detection of fruits according to claim 2, characterized in that, The sorting mechanism further includes a feeding box (201) for adding fruits to be inspected (600) into the sorting cylinder (200); A feeding pipe (202) is communicated and arranged at the bottom of the feeding box (201), and the other end of the feeding pipe (202) coaxially penetrates and rotates into the sorting cylinder (200).

4. The sorting device for post-harvest quality detection of fruits according to claim 3, characterized in that, The sorting driving member (205) includes a sorting motor (2051), and a driving gear (2052) is coaxially and fixedly installed on the output shaft of the sorting motor (2051); The sorting driving member (205) further includes a driven gear ring (2053) coaxially and fixedly sleeved on the outer circle of the feeding pipe (202), and the driven gear ring (2053) meshes with the driving gear (2052).

5. The sorting device for post-harvest quality detection of fruits according to claim 3 or 4, characterized in that, The fruit pushing mechanism (400) further includes a pushing motor (401) for driving the two groups of pushing augers (405) to rotate in the same direction. The pushing motor (401) is supported and fixedly installed on a motor bracket (402). A pushing rotating shaft (403) is coaxially and fixedly arranged on each group of pushing augers (405). The two pushing rotating shafts (403) are both supported and rotatably arranged on the motor bracket (402). The output shaft of the pushing motor (401) is drivingly connected to one of the pushing rotating shafts (403), and the two pushing rotating shafts (403) are drivingly connected through a transmission belt (404).

6. The sorting device for post-harvest quality detection of fruits according to claim 5, wherein, The appearance detection module (500) includes an L-shaped support rod (503). The end of the horizontal part of the L-shaped support rod (503) is fixedly connected to the output shaft of a forward and reverse servo motor (501), and the forward and reverse servo motor (501) is fixedly installed on a detection bracket (502); a detection host (505) is detachably installed on the vertical part of the L-shaped support rod (503); A detection camera (507) is provided on the detection host (505). The detection camera (507) is used to acquire an image of the fruit to be detected (600), and an image recognition algorithm is used to analyze the image to obtain a detection result of the appearance quality of the fruit to be detected (600).

7. The sorting device for post-harvest quality detection of fruits according to claim 6, characterized in that, An installation sleeve (506) is fixedly provided on the detection host (505). The installation sleeve (506) is sleeved on the vertical portion of the L-shaped support rod (503). Installation screw holes (504) are provided on both the installation sleeve (506) and the installation screw hole (504). The installation sleeve (506) sleeved on the vertical portion of the L-shaped support rod (503) is fixed by an installation bolt that mates with the installation screw hole (504).

8. The sorting device for post-harvest quality detection of fruits according to claim 7, characterized in that, A number of supplementary light beads (508) are also provided on the detection host (505). The number of supplementary light beads (508) is arranged in a circumferential array around the detection camera (507).

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