KR20170001421A - Apparatus for Selecting the Agricultural Product and Method for Selecting the Agricultural Product - Google Patents

Abstract

According to an embodiment of the present invention, an agricultural product sorting apparatus is an agricultural product sorting apparatus which sorts agricultural products, in a state where each agricultural product is disposed on a tray, and transports the same to a conveyor. The agricultural product sorting apparatus comprises: a loading unit for loading agricultural products on a tray to be carried; a sensing unit for sensing a quality classification factor of the agricultural product loaded on the tray and transported; a classifying unit for classifying and transporting agricultural products according to the quality classification factor sensed by the sensing unit; and a tray returning unit for returning empty trays to the loading unit after the agricultural products are classified and treated in the classifying unit.

Description

Technical Field [0001] The present invention relates to an agricultural product selection apparatus and a method for selecting agricultural products.

The present invention relates to an agricultural product sorting apparatus and an agricultural product sorting method. More particularly, the present invention relates to an agricultural product sorting apparatus and a method for sorting agricultural products by conveying a tray on which agricultural products such as fruits are loaded, And a method for sorting agricultural products.

In the process of mass production and consumption of agricultural products including fruits and the like, it is necessary to box fruits by sorting fruits sorted according to predetermined criteria such as sugar content and size.

As described in Japanese Utility Model Registration Laid-Open No. 56-47147, a conventional apparatus for feeding an article supplied from a preceding process to a plurality of lanes is used, for example, in a sorting facility for fruits and vegetables. Such a sorting facility is provided with a dispersion roller having a width corresponding to the fruit sorting conveyor so as to be able to uniformly distribute and supply the items (fruits) to be sorted to a plurality of corresponding lanes of the fruit sorting conveyor installed parallel to each other at regular intervals, And a feeding device using a conveyor.

The conventional apparatus as described above is based on the expectation that an article will roll in a desired direction due to its own cloud characteristics during the process of being transferred from an upstream point (preceding process) to a downstream point (connection and conveyance apparatus).

However, it has the disadvantage that the article can not always roll properly in the expected direction due to the difference in the shape of the article itself and the difference in the external shape and the randomly changing direction. Therefore, when three or more fruit sorting conveyors are provided, the articles can not be uniformly distributed and can not be uniformly fed to each lane. Instead, many goods tend to be transported to the central area of the connecting and conveying device, so that only a small amount of the product flows to both outer corners of the connecting and conveying device.

Further, there is a drawback that a large amount of products flow to one side of the connection and conveyance device, while only a small amount of products flow to the other side, depending on the position or direction in which the product is fed from the preceding process. As a result, an excessive amount of product flows through one or more conveyors, while substantially no products flow through other conveyors.

As a result, the sorting operation can not be performed in the sorting conveyor in which an excessive amount of items such as fruit flows, and in the sorting conveyor in which a small amount of articles are running, the sorting operation is possible but the processing efficiency (selected amount) is decreased.

In addition, in the conventional apparatus as described above, the roller of the roller conveyor is independently rotated to perform the conveying function of the conveyor. This rotation of the rollers also causes the rotation of the article such as fruit, which causes the rotational contact friction between the roller and the fruit and the rotational contact friction between the fruit and the other fruit, causing the fruit to be scratched or damaged, There will be defects.

In order to solve this problem, a configuration in which the fruits are carried in a tray on a conveyor has been proposed. However, in order to automate the entire process of sorting and sorting fruits in the process of carrying them on a conveyor, the process of automatically collecting the trays and loading the fruits to be sorted again on the collected trays should be automatically performed. The entire process including the automatic recovery can not proceed to the sequential flow, and thus the process can not be automated.

The present invention solves the above-described problems of the prior art, and it is an object of the present invention to provide a method and a device for sorting fruit according to predetermined grades, And to provide an agricultural product sorting apparatus that enables automatic and batch processing of the process.

In order to achieve the above object, an agricultural product sorting apparatus according to an embodiment of the present invention is an agricultural product sorting apparatus for sorting agricultural products and transporting them by a conveyor in a state where individual agricultural products are arranged on trays, A sensing unit for sensing the quality classification factor of the agricultural product placed on the tray, a sorting unit for sorting and transporting the agricultural products according to the quality classification factors sensed by the sensing unit, And a tray returning unit for returning the empty tray to the stacking unit after the agricultural products are sorted and processed in the sorting unit.

Here, the sensing unit includes a weight sensing unit, a sugar level sensing unit, and a color sensing unit, which are sensors for sensing a quality classification factor including at least one of weight, sugar content, and hue of agricultural products.

Meanwhile, the sorting unit includes a plurality of sorting pushers, which are synchronized with the sensed result of the sensing unit and push the tray according to the sensed result when the individual agricultural products are conveyed on the conveyor.

 The sorting unit may further include a sorting conveyor for sorting the trays classified by the sorting pusher into an operator's waiting position for carrying out an operation for taking out agricultural products from the tray, At least one tray take-out conveyer arranged to cross the worker's front conveyor and carrying the tray out of the tray, and a tray placed on the worker's front conveyor, And a tray waiting section for waiting the tray, wherein the agricultural sorting conveyor and the worker forward conveyor are provided with two or more rows of tray traversing paths.

At this time, the sorting section has a separation panel for sorting the two or more rows of tray traversing paths, and the separation panel continuously extends above the agricultural sorting conveyor and above the worker forward conveyor.

The width of the two or more rows of traverse paths formed by the separation panel is formed to be larger than the maximum width of one tray and smaller than twice the maximum width of one tray.

The tray waiting unit may include an empty tray sensing unit and a path breaker for each path at each end of the two or more tray traverse paths and an open control unit electrically connected between the empty tray sensing unit and the path breaker Respectively.

The open control unit controls the path breaker of the path to open the path when the tray is detected to be empty due to the separation of the agricultural product from the empty tray sensing unit tray disposed at the path end of each tray progress path.

In addition, the agricultural product sorting apparatus according to an embodiment of the present invention further includes a box conveyor which is disposed in parallel with the worker's front conveyor for a predetermined interval and carries a box containing agricultural products separated from the tray.

According to another aspect of the present invention, there is provided a method for sorting agricultural products, which comprises sorting agricultural products in a state where individual agricultural products are arranged on trays, and transporting the sorted agricultural products to a conveyor. In the method for sorting agricultural products, A sensing step of sensing a quality classification factor of an agricultural product transported while being placed on the tray in a state where the tray is transported on a conveyor and moving the sorting device, And a tray returning step of returning the empty tray to the stacking unit after the agricultural products are sorted and processed in the sorting unit.

According to the agricultural product sorting apparatus according to the embodiment of the present invention, the following effects are expected.

First, the selected agricultural products are not rolled on the conveyor, so the agricultural products are not damaged in the selection process.

Second, since the sorting process can be performed continuously, the processing speed can be improved.

Third, the recovery process of the tray for supporting the agricultural products on the conveyor is automatically performed, so that the labor for recovering the tray can be reduced.

Fourth, in the event that an error occurs in which the tray can not be loaded with agricultural products, the empty tray is selected in advance, thereby preventing the empty tray from being introduced into the loading stage.

Fifth, in order for the agricultural products to be finally loaded in the box, the agricultural products are queued in front of the workers in the queue in front of the workers, thereby increasing the amount of work that the workers can simultaneously handle.

Sixth, the agricultural products are stopped in front of the worker, so that the farmer can stop the transportation of agricultural products from the tray to the shipping box, and prevent the agricultural products that are not transferred by the operator from being transported to the tray.

Seventh, it is possible to prevent the jam phenomenon occurring in the transportation between the trays containing the agricultural products, since the progress paths between the agricultural products that are finally carried to the box and the agricultural products that are carried to the box are not interfered with each other.

Eighth, it is possible to put a large number of agricultural products in the worker's work space where the agricultural products are transferred to the shipping box, thereby increasing the efficiency of the operation of transferring the agricultural products to the shipping boxes.

1 is a block diagram of components of an agricultural product sorting apparatus according to an embodiment of the present invention.
2 is a plan view showing the sorting operation using the agricultural product sorting apparatus according to an embodiment of the present invention.
3 is a block diagram of a sorting unit for sorting agricultural products by the agricultural product sorting apparatus according to an embodiment of the present invention.
4 is a plan view of a tray waiting device of an agricultural product sorting apparatus according to an embodiment of the present invention.
5 is a partial side view schematically showing a situation in which a worker is working at a shipment position of a tray waiting device according to an embodiment of the present invention.
6 is a block diagram of the path open and close related components of a tray standby apparatus in accordance with an embodiment of the present invention.
Figure 7 is a flow chart showing the operational sequence of the components of Figure 6;

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

The agricultural products classified and handled in the present invention include various products produced agriculturally, including, for example, fruits and vegetables, and more particularly fruits such as apples, peaches, pears, mangos, Watermelon, cucumber, and pumpkin.

FIG. 1 is a block diagram of components of an agricultural product sorting apparatus according to an embodiment of the present invention, and FIG. 2 is a plan view showing sorting operation using an agricultural product sorting apparatus according to an embodiment of the present invention.

1 and 2, the agricultural product sorting apparatus 100 according to an embodiment of the present invention is an agricultural product sorting apparatus for sorting agricultural products in a state where individual agricultural products are arranged on a tray, and transporting the agricultural products as a conveyor.

The agricultural product sorting apparatus 100 includes a stacking unit 110 for stacking agricultural products on a tray to be transported, a sensing unit 120 for sensing quality classification factors of agricultural products placed on the tray, A sorting unit 130 for sorting and transporting agricultural products according to the quality classification factors sensed by the sorting unit 120, a tray return unit 140 for transporting the empty trays to the stacking unit after the agricultural products are classified and processed in the sorting unit, And a shipment unit 150 for shipment of packaged agricultural products sorted by quality classification factors in the sorting unit.

Referring to FIG. 2, in the loading unit 110, an operation for loading agricultural products to be sorted into a main conveyor 102 connected to a plurality of empty tray return conveyors for returning empty trays is performed. A plurality of unclassified agricultural products are placed in a box and the agricultural product conveying conveyors are arranged to be crossed toward the main conveyor 102. The worker P1 takes the produce from the produce box on the agricultural loading conveyor and places it on an empty tray on the main conveyor 102. [ The conveying speed of the main conveyor 102 is set at a speed at which the operator P1 can load agricultural products in the tray even though the tray is moving.

After the agricultural product is mounted on the tray, the tray passes through the sensing unit 120 on the main conveyor 102. The sensing unit 120 may include a weight sensing unit 122, a sugar level sensing unit 124, and a color sensing unit 124. The sensing unit 120 senses a quality classification factor including at least one of weight, (126).

Here, since the weight is a weight including trays and agricultural products, when a standardized tray is used, the weight of the agricultural product can be measured by subtracting the weight of the tray from the measured weight. The sensor for measuring the weight is installed on the lower side of the main conveyor 102 to measure the combined weight of the tray and the agricultural products and then calculate the weight of the agricultural products only.

The sugar content sensing unit 124 for measuring sugar content may be, for example, an NIR sensor, and the color sensing unit 126, which is a color sensing sensor, may be a camera for sensing and sensing the appearance of an agricultural product.

The sorting unit 130 is disposed downstream of the main conveyor 102 in the traveling direction of the main conveyor 102. The sorting unit 130 synchronizes with the moving speed of the main conveyor 102, A plurality of sorting pushers 131a for pushing the tray according to the sensed result when the tray on which the individual produce is mounted is conveyed on the conveyor in the direction of the conveyor energization.

3 is a block diagram of a sorting unit for sorting agricultural products by the agricultural product sorting apparatus according to an embodiment of the present invention. 2 and 3, the plurality of sorting pushers 131a are disposed on the side of the main conveyor so that when the tray to be sorted passes, the side of the tray is pushed to the corresponding agricultural sorting conveyor 131b, The tray is pushed and moved to the agricultural product sorting conveyor 131b unlike the traveling direction of the main conveyor.

In this process, the pushing control unit 104 controls the pushing control unit 104 based on the information collected by the weight sensing unit 122, the sugar content sensing unit 124, and the color sensing unit 126, The sorting pusher 131a operates to move the agricultural product to the designated agricultural product sorting conveyor 131b when the sorting pusher 131a passes the side of the sorting pusher 131a.

In addition, when only the weight of the standardized tray preliminarily inputted by the weight detection unit 122 is sensed, the pushing control unit 104 determines that the tray is an empty tray on which the agricultural products are not mistakenly mounted, The tray pusher 141 is actuated to remove the empty tray on the main conveyor 102. The empty tray may be detected by the sugar level sensing unit 124 or the color sensing unit 126 in addition to the weight (that is, when the sugar level is not detected or only the color of the tray is detected, You can also detect and prevent errors.

2 and 4, the sorting unit 130 includes a worker P2 that performs an operation of taking out the agricultural product F from the tray, the tray T sorted by the sorting pusher 131a, A worker forward conveyor 131d that is arranged to intersect the agricultural product sorting conveyor at the worker standby position and that transports the tray T and a worker forward conveyor 131d that is disposed to cross the worker forward conveyor, At least one empty tray transport conveyor 133a, 133b for transporting and transporting the tray T, and the tray T is cut off until the agricultural product is released from the tray placed on the operator front conveyor, And a tray waiting portion 132 for waiting.

At this time, two or more rows of trays are provided on the agricultural sorting conveyor 131b and the worker's front conveyor 131d. In this case, the maximum number of parallel tray traversing paths can be set within a range in which the operator can easily perform the operation.

For this, the sorting unit 130 is provided with a separation panel 131c for sorting the two or more rows of the tray progress path on the agricultural product sorting conveyor 131b and the worker front conveyor 131d, Is continuously extended on the upper side of the agricultural product sorting conveyor 131b and the worker's front conveyor 131d and rounded in order to smoothly move the tray in the portion where the traveling direction of the tray is bent.

The two or more rows of tray trajectory paths formed by the separation panel 131c include a first outer guide panel 131f1 and a first inner guide panel 131h1 protruding upward from both sides of the agricultural product sorting conveyor 131b, And a second outer guide panel 131f2 and a second inner guide panel 131h2 disposed on both sides of the worker front conveyor 131d and a separation panel 131c disposed between them.

The connecting portion of the first outer guide panel 131f1 and the second outer guide panel 131f2 may also be rounded for smooth guide of the tray T. [ At this time, the guide panels are formed at a height that can guide the tray so that the tray does not deviate from the path, and it is preferable that the operator P2 is formed at a height that does not hinder the operator P2 from picking up agricultural products. Alternatively, the second outer guide panel 131f2 of the panels may be formed at a lower height than the other panels.

In order to allow only one trays to proceed in each path, the width of the path is set so that the maximum diameter of one tray T (the diameter of the lower diameter of the tray is larger than the diameter of the lower side to place the trays on the conveyor stably) And is formed to be smaller than twice the maximum diameter of one tray.

FIG. 4 is a partial side view schematically illustrating a situation in which a worker is working at a shipping position of the tray waiting apparatus according to an embodiment of the present invention, and FIG. 5 is a partial side view of the tray waiting apparatus in accordance with an embodiment of the present invention. Referring to FIG. 6, which is a block diagram of related components, the tray-waiting unit 132 includes empty tray sensing units 131k1 and 131k2 and path breakers 131i1 and 131i2 for each path at each end of the two or more tray- , 131i2.

The tray waiting section 132 includes an opening control section 131m electrically connected between the empty tray sensing sections 131k1 and 131k2 and the path breakers 131i1 and 131i2.

When the empty tray sensing units 131k1 and 131k2 disposed at the path ends of the respective tray progress paths detect that the tray is empty due to separation of agricultural products from the tray, the opening control unit 131m switches the path breakers 131i1 and 131i2 of the corresponding path, To open the path.

As shown in FIG. 5, when there are two tray traversing paths, the path traversers 131i1 and 131i2 installed in the tray traversing path respectively operate independently of each other. That is, when the opening control unit 131m detects that the tray on the path corresponding to the first empty tray sensing unit 131k1 is empty, the first control unit 131i activates the first path breaker 131i1 and activates the second empty tray sensing unit 131k2 The second path breaker 131i2 is activated in response to the detection of the tray being empty.

Refer to FIG. 7 to explain the operation relationship of the empty tray detection unit and the path breaker. Figure 7 is a flow chart showing the operational sequence of the components of Figure 6; Referring to FIG. 7, the path breakers 131i1 and 131i2 basically close the path of the tray in a manner that the path breakers 131i1 and 131i2 protrude upward from the lower side or protrude downward from the upper side (S1). Then, the empty tray sensing units 131k1 and 131k2 detect whether or not the tray is empty (S2). If the operator P2 picks up the agricultural product from the tray and puts it in the box 192, the tray is detected as being empty At this time, the progress path is opened to export the empty tray (S3). If the empty tray detecting units 131k1 and 131k2 detect that the tray is not empty, the open control unit 131m maintains a state of blocking the path using the path breaker.

Here, for example, an optical photosensor (optical sensor) may be used as the empty tray sensing units 131k1 and 131k2. However, the empty tray sensing units 131k1 and 131k2 are not limited to the optical photosensors, and various mechanical and electronic devices for checking whether the stacking tray is empty can be applied.

Referring to FIGS. 4 to 7, a plurality of trays T on which agricultural products such as watermelons, melons, peaches, apples, and pears are mounted can be detected by the sensing unit 120 according to factors such as weight, And is conveyed by the sorting pusher 131a toward the tray waiting portion 132 through the corresponding belt conveying type agricultural sorting conveyor 131b. Thereafter, the workpiece is conveyed to a workpiece conveyor 131d of a belt conveying type in which the end portion of the agricultural product sorting conveyor 131b intersects with the side surface of the workpiece conveyor 131d, and then the agricultural products mounted on the tray by the worker on the worker- The empty tray transport conveyors 133a and 133b of the belt conveying type disposed at the end of the forward direction of the operator front conveyor 131d after being transferred to the shipping box 192 placed on the support 190 placed on the conveyor, Is transported.

Referring again to FIGS. 1 and 2, the empty tray is returned to the loading unit 110 by the tray returning unit 140, and the above-described operation is repeated. 2, the empty tray T from which the agricultural products have been extracted at the respective tray bases 132 includes a horizontal first empty tray transport conveyor 133a and a second horizontal tray conveyor 133a, Is conveyed through the empty tray conveying conveyor 133b to the first empty tray unloading conveyor 144 which passes through the respective sorting conveyor 131b of each quality classification factor and advances to the lower path thereof. The empty tray is collected in the empty tray standby conveyor 147 through the second empty tray conveying conveyor 145 and the third empty tray conveying conveyor 146 connected to the first empty tray conveying conveyor 144 in a progressive path, do.

The empty tray standby conveyor 147 has a plurality of empty tray advance paths and adjusts a time interval for conveying the empty tray to the loading unit 110 to send the tray to the loading unit 110. The empty tray taken out from the empty tray standby transport unit 147 is again transported to a fourth empty tray transport conveyor 148, a fifth empty tray transport conveyor 149a, a sixth empty tray transport conveyor 149b, And then moved back along the main conveyor 102. Thereafter, the agricultural products are again loaded on the empty tray in the loading unit 110. [

Separately, the agricultural products classified in the box 192 in FIG. 5 are moved by the box conveyor 135 to the shipping section 150 (FIG. 2) and shipped by the worker P3.

2 shows a tray-waiting portion 132 in which one empty tray conveying conveyor 133a corresponds to one of the two agricultural product sorting conveyors 131b. However, the present invention is not limited thereto, And one empty tray transport conveyor 133a may correspond to the conveyor 131b.

As shown in FIG. 2, when the stacking tray conveyed by the two agricultural sorting conveyors 131b arranged in parallel and spaced apart is conveyed through one empty tray conveying conveyor 133a, the worker forward conveyor 131d, The right and left worker front conveyors are separately provided. Therefore, the worker's front conveyor on the right side, which transports the stacking tray conveyed from the right-side agricultural product sorting conveyor, transports the stacking tray on the left side in the drawing (X direction in FIG. 2) from the end on the progress path of the right- The left worker forward conveyor for conveying the stacking tray conveyed from the left agricultural product sorting conveyor is to convey the stacking tray from the end of the left agricultural sorting conveyor to the right side in the drawing (the + X direction in FIG. 2).

Although not shown in the drawing, if one bin tray conveyance conveyor is corresponded to one agricultural sorting conveyor, the worker forward conveyor can be composed of one conveyor without distinction between the left and right conveyors.

On the other hand, the section of the worker's front conveyor 131d can be extended in consideration of the working range of the worker P2. If the worker's front conveyor 131d is extended long, a larger number of stacking trays can be placed on the worker's front conveyor 131d in this case, so that the worker P2 can wait until the worker P2 releases the agricultural product from the tray .

Therefore, by adjusting the length of the worker's front conveyor 131d, the number of the trays T waiting on the worker's front conveyor 131d can be adjusted, and the worker who is working at the shipment position on the side of the worker's front conveyor 131d It is possible to change the operation pattern of the user.

For example, when the agricultural product being transferred is a watermelon, the size of the watermelon is large and the weight is heavy, so the worker has to detach only one watermelon at a time from the tray. However, in the case of relatively small and light fruits such as apples and peaches, Several agricultural products can be hand-held and transferred to the shipping box 192 or subjected to appropriate screening operations. Accordingly, the tray-waiting portion 132 according to the present invention can be customized to various agricultural products.

According to another aspect of the present invention, there is provided a method for sorting agricultural products, which comprises sorting agricultural products in a state where individual agricultural products are arranged on a tray, and transporting the sorted agricultural products to a conveyor, wherein the agricultural product sorting method comprises: A sensing step of sensing a quality classification factor of an agricultural product transported while being placed on the tray in a state where the tray is transported on a conveyor and transported; and a step of sorting agricultural products by quality classification factors sensed by the sensing unit, And a tray returning step of returning the empty tray to the stacking unit after the sorting and sorting of agricultural products in the sorting unit.

T: Tray F: Agricultural products
P1, P2, P3: Worker

Claims (10)

An agricultural product sorting apparatus for sorting and transporting agricultural products in a state where individual agricultural products are arranged on a tray, the agricultural product sorting apparatus comprising:
A loading section for loading the agricultural products on the tray to be transported
A sensing unit for sensing quality classification factors of agricultural products placed on the trays and transported;
A classifying unit for classifying and transporting agricultural products according to the quality classification factors sensed by the sensing unit;
And a tray returning unit for returning the empty tray to the stacking unit after the sorting unit classifies and processes the agricultural products in the sorting unit. The method according to claim 1,
Wherein the sensing unit includes a sensor for sensing a quality classification factor including at least one of a weight, a sugar content, and a color of an agricultural product. The method according to claim 1,
Wherein the sorting unit is provided with a plurality of sorting pushers which are synchronized with the sensing result of the sensing unit and push the tray according to the sensed result when the tray loaded with the individual produce is conveyed on the conveyor, . The method of claim 3,
Wherein,
An agricultural sorting conveyor for conveying the tray sorted by the sorting pusher to a worker standby position for performing an operation of taking out agricultural products from the tray
A worker front conveyor arranged to cross the agricultural product sorting conveyor at the operator stand-by position,
At least one tray take-off conveyor arranged to cross the worker's front conveyor,
And a tray waiting unit for blocking the progress of the tray until the product is released from the tray placed on the worker ' s front conveyor to wait the tray,
Wherein the agricultural product sorting conveyor and the worker's front conveyor are provided with two or more rows of tray trains on the upper side of the agricultural sorting conveyor and the worker's front conveyor. 5. The method of claim 4,
Wherein the sorting section has a separation panel for sorting the two or more rows of tray traversing paths, wherein the separation panel continuously extends above the agricultural sorting conveyor and above the worker forward conveyor. 6. The method of claim 5,
Wherein the width of the tray traverse path of two or more rows formed by the separation panel is formed to be larger than the maximum diameter of one tray and smaller than twice the maximum diameter of one tray. 5. The method of claim 4,
The tray waiting unit includes an empty tray sensing unit and a path breaker at each end of each of the two or more rows of the tray progress paths and an opening control unit electrically connected between the empty tray sensing unit and the path breaker And an agricultural product sorting apparatus. 8. The method of claim 7,
Wherein the open control unit controls the path breaker of the path to open the path when it detects that the tray is empty due to separation of the agricultural product from the empty tray sensing unit tray disposed at the path end of each tray progress path . 5. The method of claim 4,
Further comprising a box conveyor which is disposed in parallel with the worker's front conveyor for a predetermined period and carries a box containing agricultural products separated from the tray. A method for sorting agricultural products by selecting individual agricultural products and transporting them as a conveyor in a state where individual agricultural products are arranged on trays,
Loading stage to load agricultural products on trays to be transported
A sensing step of sensing a quality classification factor of an agricultural product placed on the tray while the tray is transported and moving on the conveyor;
A classifying step of classifying and transporting agricultural products according to the quality classification factors sensed by the sensing unit,
And a tray returning step of returning the empty tray to the stacking unit after the sorting and sorting of agricultural products in the sorting unit.

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