Agricultural product sorting apparatus

Abstract

The present invention relates to a sorting device for sorting agricultural products by size, comprising: a main body having an open top surface and one side surface; an input conveyor installed at the upper end of the main body for sequentially feeding agricultural products to be sorted; a plurality of transfer rods for sequentially transporting agricultural products fed by the input conveyor to the rear end; a spacing adjustment unit that sequentially transports the plurality of transfer rods by circulating them in an endless loop manner, while causing the spacing between them to gradually widen during the process of transport to the rear end; and a plurality of discharge conveyors for discharging agricultural products by size that fall into the space between the transfer rods, which are spaced apart by the spacing adjustment unit.

Description

Technology Field

[0001] The present invention relates to an agricultural product sorting device, and more specifically, to an agricultural product sorting device that can improve commercial value by reducing surface damage and reducing friction between agricultural products by minimizing the movement of agricultural products to be sorted by size. Background Technology

[0003] Generally, harvested agricultural products are classified into grades based on their size and the quality of their appearance, and are sold to consumers at different prices according to these grades.

[0004] However, conventionally, workers manually sorted these agricultural products based on size and appearance, which led to increased production costs due to rising labor expenses. Additionally, because the sorting was done manually, there was a problem with low reliability of the agricultural products classified by grade.

[0005] To address these issues, automatic sorting devices for agricultural products have recently been developed; however, conventional sorting devices had a problem where the products' surfaces were damaged due to impact during the sorting process, resulting in a decrease in their market value.

[0006] In other words, as agricultural products fed for sorting collide with each other and cause friction during the process of being transported for sorting by size, problems such as surface damage and reduced market value frequently occurred. Prior art literature

[0008] Korean Published Patent No. 10-2014-0071108 (June 11, 2014) Korean Published Patent No. 10-2015-0103832 (September 14, 2015) The problem to be solved

[0009] The present invention was conceived in light of the aforementioned problems, and the technical problem that the present invention aims to solve is to provide an agricultural product sorting device that can improve product value by minimizing the movement of agricultural products to be sorted by size, thereby reducing mutual friction between agricultural products and minimizing surface damage.

[0010] In addition, another technical problem that the present invention aims to solve is to provide an agricultural product sorting device that can improve consumer satisfaction and increase farm income by providing consumers with agricultural products whose commercial value has not been compromised.

[0011] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0013] A sorting device for agricultural products according to an embodiment of the present invention for solving the above problem may be configured to include: a main body having an open top surface and one side surface; an input conveyor installed at the upper end of the main body for sequentially inputting agricultural products to be sorted; a plurality of transfer rods for sequentially transporting agricultural products input by the input conveyor to the rear end; a spacing adjustment unit that sequentially transports the plurality of transfer rods while circulating them in an endless loop manner, and causes the spacing to gradually widen during the process of transporting to the rear end; and a plurality of discharge conveyors for discharging agricultural products by size that fall into the space between the transfer rods that have been spaced apart by the spacing adjustment unit.

[0014] In addition, the agricultural product sorting device according to an embodiment of the present invention may further comprise a driving motor driven by an electrical signal, and a driving means that organically operates the input conveyor, a plurality of transfer rods, the gap adjustment unit, and the discharge conveyor by driving the driving motor.

[0015] Here, the driving means includes a main chain that rotates in an endless track manner in conjunction with the driving of the driving motor, and the connecting ends of the transfer rods on both sides are installed to pass through the main chains, and the connecting ends of the transfer rods can be sequentially moved horizontally by the rotation of the gap adjustment part.

[0016] Meanwhile, the above-mentioned gap adjustment unit comprises a first rotation axis that rotates in conjunction with the driving of the driving motor, rotating blades formed to extend radially at a certain interval on the circumferential surface of the first rotation axis, and a guide screw that winds the rotating blades in a spiral shape, wherein the guide screw has guide spiral grooves formed continuously in a spiral shape into which the connecting ends of the transfer rods are inserted, and gap maintaining grooves are formed between the guide spiral grooves, and the gap between the gap maintaining grooves can gradually widen as it moves from the front end to the rear end.

[0017] In addition, it further includes a second rotation axis that rotates in conjunction with the driving of the above-mentioned driving motor, and the plurality of discharge conveyors can be rotated in conjunction with the rotation of the second rotation axis.

[0018] Other specific details of the present invention are included in the detailed description and drawings. Effects of the invention

[0020] According to the agricultural product sorting device of the embodiment of the present invention, the movement of agricultural products to be sorted by size is minimized, thereby reducing mutual friction between agricultural products and minimizing surface damage, which can provide the effect of significantly improving product value.

[0021] In addition, according to the agricultural product sorting device of the embodiment of the present invention, as agricultural products with undamaged commercial value are provided to consumers, not only is consumer satisfaction improved, but the effect of increasing farm income can also be provided.

[0022] The effects according to the present invention are not limited to those exemplified above, and various other effects are included in this specification. Brief explanation of the drawing

[0024] FIG. 1 is an overall perspective view of an agricultural product sorting device according to an embodiment of the present invention. FIG. 2 is an internal perspective view with the main body removed from FIG. 1 to show the durability configuration of an agricultural product sorting device according to an embodiment of the present invention. FIG. 3 is a rear perspective view of FIG. 2. FIG. 4 is a partially enlarged perspective view of FIG. 3 for showing the driving relationship of the leading side in an agricultural product sorting device according to an embodiment of the present invention. Fig. 5 is a plan view of Fig. 4. FIG. 6 is an internal perspective view with the conveying rods removed from FIG. 4 to show the internal configuration of an agricultural product sorting device according to an embodiment of the present invention. FIG. 7 is a partially enlarged perspective view for showing the rear-side driving relationship in an agricultural product sorting device according to an embodiment of the present invention. Fig. 8 is a front view of Fig. 7. Fig. 9 is a side view of Fig. 2. FIG. 10 is a plan view of FIG. 2. Specific details for implementing the invention

[0025] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0026] Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques are not specifically described to avoid the present invention being interpreted ambiguously.

[0027] The terms used herein are for the purpose of describing embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used in this specification, "comprises" and / or "comprising" are used in a sense that does not exclude the presence or addition of one or more other components, steps, and / or actions other than the mentioned components, steps, and / or actions. And, "and / or" includes each of the mentioned items and all combinations of one or more of them.

[0028] Furthermore, the embodiments described herein will be explained with reference to perspective views, cross-sectional views, side views, and / or schematic drawings, which are ideal illustrative drawings of the present invention. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and / or tolerances, etc. Therefore, the embodiments of the present invention are not limited to the specific shapes depicted but include variations in shape resulting from the manufacturing process. Additionally, in each drawing of the embodiments of the present invention, each component may be depicted slightly enlarged or reduced for convenience of explanation.

[0029] Hereinafter, an agricultural product sorting device according to an embodiment of the present invention will be described in detail with reference to the attached exemplary drawings.

[0030] FIG. 1 is an overall perspective view of an agricultural product sorting device according to an embodiment of the present invention, FIG. 2 is an internal perspective view with the main body removed from FIG. 1 to show the internal configuration of the agricultural product sorting device according to an embodiment of the present invention, and FIG. 3 is a rear perspective view of FIG. 2.

[0031] In addition, FIG. 4 is a partially enlarged perspective view of FIG. 3 to show the driving relationship of the leading side in an agricultural product sorting device according to an embodiment of the present invention, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is an internal perspective view with the conveying rods removed from FIG. 4 to show the internal configuration of an agricultural product sorting device according to an embodiment of the present invention.

[0032] In addition, FIG. 7 is a partially enlarged perspective view showing the rear-side driving relationship in an agricultural product sorting device according to an embodiment of the present invention, FIG. 8 is a front view of FIG. 7, FIG. 9 is a side view of FIG. 2, and FIG. 10 is a plan view of FIG. 2.

[0033] As illustrated in FIGS. 1 to 10, an agricultural product sorting device (10) according to an embodiment of the present invention may be configured to include a main body (20) with an open upper surface and one side, an input conveyor (30) installed at the upper end of the main body (20) for sequentially inputting agricultural products to be sorted, a plurality of transfer rods (50) for sequentially transporting agricultural products input by the input conveyor (30) to the rear end, a spacing adjustment unit (60) for sequentially transporting the plurality of transfer rods (50) while circulating them in an endless loop manner, and a spacing adjustment unit (60) for gradually increasing the spacing during the process of transporting to the rear end, and a plurality of discharge conveyors (40) for sorting and discharging agricultural products that fall into the space between the transfer rods (50) that have gradually increased the spacing by the spacing adjustment unit (60) by size.

[0034] In addition, the agricultural product sorting device (10) according to an embodiment of the present invention may further comprise a driving motor (100) driven by an electrical signal, and a driving means that organically operates an input conveyor (30), a plurality of transfer rods (50), a spacing adjustment unit (60), and an output conveyor (40) by driving the driving motor (100).

[0035] That is, the input conveyor (30) rotates by the drive of the drive motor (100) to feed the input agricultural products to the leading edge of the transfer rods (50), and the transfer rods (50) are sequentially transported by the drive of the gap adjustment unit (60) so that the gaps between them gradually widen, and the agricultural products are sorted by size as they fall onto the multiple discharge conveyors (40), and the discharge conveyors (40) also rotate to sort the discharged agricultural products by size, and the specific operational relationship thereof will be explained in detail later.

[0036] For reference, the unexplained symbol (22) in the drawing represents a main body frame that supports the main body.

[0037] A sprocket (102) is installed at the end of the drive shaft of the drive motor (100), and this sprocket (102) is fitted by a first connecting chain (C1) with a sprocket (112) at one end of a first rotating shaft (110) which is installed rotatably on both upper sides of the front end of the main body (20).

[0038] Accordingly, when the drive motor (100) is driven, the first rotation shaft (110) rotates in conjunction with the first connecting chain (C1).

[0039] A pair of sprockets (114) are formed at both ends of this first rotation axis (110) at regular intervals, and a main chain (MC), which will be described in detail later, is fitted to this pair of sprockets (114) to enable rotation in an endless track manner.

[0040] Meanwhile, a sprocket (116) is also installed on the other end of the first rotation shaft (110), and this other end sprocket (116) is fitted by a second connecting chain (C2) with a sprocket (122) on the other end of the second rotation shaft (120), which is installed horizontally so as to be rotatable with respect to the upper ends of both sides of the front end of the main body (20) and is positioned parallel to the first rotation shaft (110) at a certain distance apart.

[0041] Accordingly, when the drive motor (100) is driven, the first rotation shaft (110) rotates in conjunction with the first connecting chain (C1), and at the same time, the second rotation shaft (120) also rotates in conjunction with the second connecting chain (C2).

[0042] A pair of first helical gears (124) are formed at both ends of the second rotation axis (120) at regular intervals, and the pair of helical gears (124) mesh with the second helical gears (610) of the gap adjustment unit (60), which will be described in detail later, thereby rotating the gap adjustment unit (60).

[0043] Here, the spacing adjustment unit (60) is installed in a pair parallel to the main body (20) in a direction perpendicular to the second rotation axis (120), that is, in a longitudinal direction, and performs the function of gradually widening the spacing by horizontally moving a plurality of transfer rods (50) arranged in a transverse direction at regular intervals on the main chain (MC). The detailed configuration and operation relationship thereof will be explained in detail later.

[0044] Additionally, referring to FIGS. 4 and 5, another sprocket (not labeled in the drawing) is further installed on the other end of the first rotation axis (110), and this other sprocket is fitted by a sixth connecting chain (C6) with a sprocket (not labeled in the drawing) on ​​one end of a third rotation axis (130) which is installed horizontally so as to be rotatable with respect to the upper ends of both sides of the front end of the main body (20) and is positioned parallel to the second rotation axis (120) at a certain distance apart.

[0045] Accordingly, when the drive motor (100) is driven, the first rotation shaft (110) rotates in conjunction with the first connecting chain (C1), and at the same time, the second rotation shaft (120) also rotates in conjunction with the second connecting chain (C2), and the third rotation shaft (130) also rotates in conjunction with the sixth connecting chain (C6).

[0046] And, another sprocket (not given a reference number) is installed at a position spaced apart from the sprocket on one side of the third rotation axis (130), and this other sprocket is fitted by a seventh connecting chain (C7) with a sprocket (not given a reference number) on one side of the fourth rotation axis (140) which is installed horizontally so as to be rotatable with respect to both sides of the front end of the main body (20) and is positioned parallel to the third rotation axis (130) at a certain distance.

[0047] Accordingly, when the drive motor (100) is driven, the first rotation shaft (110) rotates in conjunction with the first connecting chain (C1), and at the same time, the second rotation shaft (120) also rotates in conjunction with the second connecting chain (C2), and the third rotation shaft (130) also rotates in conjunction with the sixth connecting chain (C6), and at the same time, the fourth rotation shaft (140) also rotates in conjunction.

[0048] Here, one end of the input conveyor (30) is fitted to the fourth rotation axis (140) in such a structure that the input conveyor (30) can rotate in an endless loop manner by the rotation of the fourth rotation axis (140).

[0049] For reference, although not separately indicated, a separate rotating shaft is provided that is positioned at a certain distance apart on the same horizontal line as the fourth rotating shaft (140) and is fitted to the other end of the input conveyor (30).

[0050] As described above, in the agricultural product sorting device (10) according to the embodiment of the present invention, when the driving motor (100) is driven by the application of an operating signal, the first rotating shaft (110), the second rotating shaft (120), the third rotating shaft (130), and the fourth rotating shaft (140) rotate simultaneously in conjunction, and accordingly, the input conveyor (30) rotates continuously in an endless track manner.

[0051] Accordingly, agricultural products placed on the input conveyor (30) are continuously supplied as they fall onto the transfer rods (50) located at the leading end due to the rotation of the input conveyor (30).

[0052] Meanwhile, a fifth rotation axis (150) may be installed horizontally so as to be rotatable with respect to both lower ends of the front side of the main body (20) on the lower side of the same vertical line as the first rotation axis (110).

[0053] A pair of sprockets (152) are formed at both ends of this fifth rotation axis (150) at regular intervals, and a main chain (MC), which will be described in detail later, is fitted to this pair of sprockets (152) to enable rotation in an endless track manner.

[0054] Additionally, referring to FIGS. 7 to 9, a sixth rotation axis (210) is installed horizontally so as to be rotatable with respect to both upper ends of the rear end of the main body (20) at a certain distance from the first rotation axis (110), and an eighth rotation axis (250) is installed horizontally so as to be rotatable with respect to both lower ends of the rear end of the main body (20) at a lower end on the same vertical line as the sixth rotation axis (210).

[0055] A pair of sprockets (214, 252) are formed at each end of the sixth rotation axis (210) and the eighth rotation axis (250) at regular intervals, and a main chain (MC) is fitted to the pair of sprockets (214, 252) to enable endless track rotation.

[0056] That is, the first rotation axis (110), the fifth rotation axis (150), the sixth rotation axis (210), and the eighth rotation axis (250) each have a main chain (MC) fitted to both ends by a pair of sprockets (114, 122, 214, 252) to rotate in an endless track manner, and the operational relationship according to the rotation of the main chain (MC) will be explained in detail later.

[0057] Meanwhile, another sprocket (212) is also installed on one side of the sixth rotation axis (210), and this other sprocket (212) is arranged parallel to the sixth rotation axis (210) at a certain distance apart in a vertical line and is fitted by a third connecting chain (C3) with a sprocket (222) on one side of the seventh rotation axis (220) which is installed horizontally so as to be rotatable with respect to the middle end of the rear end of the main body (20).

[0058] Accordingly, when the drive motor (100) is driven, the first rotation axis (110) rotates in conjunction with the first connecting chain (C1), and at the same time, the sixth rotation axis (210) also rotates in conjunction with the main chain (MC), and the seventh rotation axis (220) also rotates in conjunction with the third connecting chain (C3).

[0059] A third helical gear (224) is formed at a position spaced apart from the sprocket (222) of the seventh rotation axis (220), and this third helical gear (224) meshes with the fourth helical gear (312) of the second rotation axis (300), which will be described in detail later, thereby rotating the second rotation axis (300).

[0060] The second rotation axis (300) is positioned below the spacing adjustment part (60) on one side, and a plurality of sprockets (not given a reference number) are installed at regular intervals, and one end of the fourth connecting chain (C4) is fitted to the plurality of sprockets, and the other end of the fourth connecting chain (C4) can be fitted to a separate rotation axis (not shown) for rotating the discharge conveyor (40).

[0061] Accordingly, as the second rotation axis (300) rotates, the plurality of fourth connecting chains (C4) rotate, thereby enabling the rotation of the plurality of discharge conveyors (40).

[0062] A sprocket (310) is installed at a position spaced apart from the fourth helical gear (312) on the second rotation axis (300), and this sprocket (310) can be fitted by a fifth connecting chain (C5) with a sprocket (not given a drawing reference) installed at the end of one of the pair of spacing adjustment parts (60), that is, one of the spacing adjustment parts (60) located on the same vertical line as the second rotation axis (300).

[0063] Accordingly, the driving force of one of the gap adjustment units (60) can be transmitted to the second rotation axis (300), and conversely, the driving force of the second rotation axis (300) can be transmitted to one of the gap adjustment units (60), and the operational relationship thereof will be explained again later.

[0064] Meanwhile, the spacing adjustment unit (60) may be configured to include a first rotation axis (600) having a second helical gear (610) formed on the leading side, rotating blades (620) formed to extend radially at a certain interval on the circumferential surface of the first rotation axis (600) and having wing grooves (622) formed at a certain interval on each, and a guide screw (630) that winds the rotating blades (620) in a spiral shape.

[0065] Here, the guide screw (630) is formed by two members paired side by side with the guide spiral groove (632) in between, and the two members can be installed so as to be fixed at both ends of the wing groove (622) of the rotating blades (620).

[0066] Accordingly, the two members forming a pair in the guide screw (630) are fitted in a spiral shape as they pass through each wing groove (622) of the rotating blades (620).

[0067] At this time, the wing grooves (622) of the rotating blades (620) are formed to gradually widen as they move from the front end to the rear end.

[0068] Accordingly, the spacing between the spacing grooves (634) between each guide spiral groove (632) of the guide screw (630) gradually widens as it moves from the front end to the rear end.

[0069] Meanwhile, connecting ends (52) are formed on both ends of the transfer rods (50), and these connecting ends (52) are inserted into the guide spiral groove (632) of the guide screw (630).

[0070] Accordingly, as the combined end (52) of the transfer rods (50) passes through each wing groove (622) of the rotating wing (620), interference does not occur when the guide screw (630) rotates.

[0071] At this time, the connecting ends (52) of the transfer rods (50) penetrate the main chain (MC) and are inserted into the guide spiral groove (632) of the guide screw (630). Here, it is preferable that a plurality of transfer rods (50) be installed at equal intervals on the main chain (MC).

[0072] Accordingly, when the main chain (MC) is rotated in an endless loop by the first rotation axis (110), the second rotation axis (120), the sixth rotation axis (210), and the eighth rotation axis (250), a plurality of transfer rods (50) move in conjunction with the main chain (MC). At this time, the transfer rods (50), which are connected to the main chain (MC) with both ends penetrating through it and positioned between the first rotation axis (110) and the sixth rotation axis (210) located on the same horizontal line on the upper side, move horizontally while gradually adjusting the spacing by the spacing adjustment part (60).

[0073] That is, the upper side transfer rods (50), which are connected at both ends to the main chain (MC) positioned between the first rotation axis (110) and the sixth rotation axis (210), are horizontally moved in conjunction with the rotation of the guide screw (630) of the gap adjustment unit (60) at the connecting ends (52) of both ends, and the gap is adjusted as the horizontal movement is made to match the gap of the guide spiral grooves (632) of the guide screw (630).

[0074] Accordingly, the spacing between the transfer rods (50) on the front side, where the width of the spacing maintaining groove (634) forming the spacing between the guide spiral grooves (632) of the guide screw (630) is relatively narrow, becomes relatively narrow, and the spacing between the transfer rods (50) on the rear side, where the width of the spacing maintaining groove (634) forming the spacing between the guide spiral grooves (632) of the guide screw (630) is relatively wide, becomes relatively wide.

[0075] Accordingly, as illustrated in FIG. 10, small agricultural products located in the space between the relatively narrowly spaced transfer rods (50) fall into the first discharge space (S1) and are discharged and sorted through the front-side discharge conveyor (40), and large agricultural products located in the space between the relatively widely spaced transfer rods (50) fall sequentially from the second discharge space (S2) to the fifth discharge space (S5) and are discharged and sorted through other discharge conveyors (40).

[0076] In other words, sorting can be achieved in which agricultural products are discharged and classified sequentially from small to large sizes as they move from the leading end to the trailing end.

[0078] The operation relationship of the agricultural product sorting device (10) that can be configured as described above is as follows.

[0079] When a worker inputs various agricultural products to be sorted by size into the input conveyor (30) and simultaneously inputs an electrical signal to the drive motor (100), the first rotating shaft (110), which is connected to the drive motor (100) by the first connecting chain (C1), rotates in conjunction with the drive motor (100) by the drive motor (100).

[0080] Accordingly, the second rotating shaft (120), which is organically connected to the second connecting chain (C2), the sixth connecting chain (C6), and the seventh connecting chain (C7) respectively by the rotation of the first rotating shaft (110), and the third rotating shaft (130) and the fourth rotating shaft (140) are also rotated in conjunction with each other, so that the input conveyor (30) is rotated by the fourth rotating shaft (140) and the input agricultural products are transferred toward the leading end transfer rods (50).

[0081] In addition, a pair of gap adjustment parts (60) are also rotated in conjunction by the meshing of the first helical gear (124) and the second helical gear (610) by the rotation of the second rotation axis (120).

[0082] Additionally, the fifth rotation axis (150), the sixth rotation axis (210), and the eighth rotation axis (250), which are coupled by the main chain (MC) through the rotation of the first rotation axis (110), also rotate in conjunction, and the seventh rotation axis (220) also rotates in conjunction with the rotation of the sixth rotation axis (210).

[0083] Accordingly, as the second rotation axis (300) rotates in conjunction with the third helical gear (224) and the fourth helical gear (312) due to the rotation of the seventh rotation axis (220), the plurality of discharge conveyors (40) also rotate in conjunction with the fourth connecting chain (C4).

[0084] That is, as the driving means operate in conjunction with the driving motor (100), all components also operate in conjunction, such as rotation, simultaneously.

[0085] At this time, the plurality of transfer rods (50) move along the main chain (MC) by the rotation of the main chain (MC) and the rotation of the spacing adjustment parts (60). The plurality of transfer rods (50) located on the same horizontal line between the first rotation axis (110) and the sixth rotation axis (210) are horizontally moved as the spacing gradually widens as they move from the first rotation axis (110), which is the front end, to the sixth rotation axis (210), which is the rear end.

[0086] That is, the transfer rods (50) on the leading side are horizontally moved with a narrow discharge space in between, in accordance with the width of the spacing maintaining groove (634) between the guide spiral grooves (632) of the guide screw (630) constituting the spacing adjustment part (60), and the transfer rods (50) on the trailing side are horizontally moved with a relatively wide discharge space in between.

[0087] In other words, the multiple transfer rods (50) are horizontally moved along the guide spiral groove (632) of the guide screw (630) of the spacing adjustment part (60) that rotates, and the spacing maintaining grooves (634) between the guide spiral grooves (632) gradually widen as they move from the front end to the rear end, so the discharge space (S1~S5) between the transfer rods (50) also gradually widens as it moves from the front end to the rear end.

[0088] Accordingly, agricultural products fed through the input conveyor (30) fall onto the leading side transfer rods (50) and are sequentially discharged by size from the first discharge space (S1) to the fifth discharge space (S5), starting with the smallest agricultural products, and the agricultural products discharged in this manner are sorted by size through each discharge conveyor (40).

[0089] Meanwhile, at this time, the side where the second rotation axis (300) is located requires more power than the other side where the second rotation axis (300) is not located, so the power of the seventh rotation axis (220) is transmitted to the second rotation axis (300), and it is desirable to transmit the driving force of one of the gap adjustment parts (60) to the second rotation axis (300) or to transmit the driving force of the second rotation axis (300) to one of the gap adjustment parts (60).

[0090] As described above, according to the agricultural product sorting device (10) of the embodiment of the present invention, the movement of agricultural products to be sorted by size is minimized, thereby reducing mutual friction between agricultural products and almost preventing surface damage, so that the commercial value can be greatly improved.

[0091] That is, the agricultural product sorting device (10) according to the embodiment of the present invention ensures that agricultural products dropped onto the conveying rods (50) do not pass over the conveying rods (50) while being transported, but are discharged and sorted at their proper positions as the spacing between the conveying rods (50) widens while they are horizontally transported while positioned between the conveying rods (50). As a result, the movement of the agricultural products themselves is minimized, thereby reducing mutual friction between the agricultural products and almost preventing surface damage, thus providing the effect of greatly improving the commercial value.

[0092] In addition, according to the agricultural product sorting device (10) according to the embodiment of the present invention, as agricultural products with undamaged commercial value are provided to consumers, not only is consumer satisfaction improved, but the effect of increasing farm income can also be provided.

[0093] A person skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0095] 10 : Sorting device 20 : Main body 22 : Frame 30 : Input conveyor 40: Discharge conveyor 50: Transfer rod 52: Connecting end 60: Gap adjustment part 100: Drive motor 102: Sprocket 110: First rotation axis 112: Sprocket 114: Sprocket 120: Second rotation axis 122: Sprocket 124: First helical gear 130: 3rd rotation axis 140: 4th rotation axis 150: 5th rotation axis 152: Sprocket 210: 6th rotation axis 212: Sprocket 214: Sprocket 220: 7th rotation axis 222: Sprocket 224: 3rd helical gear 250: 8th rotation axis 252: Sprocket 300: Second rotation axis 310: Sprocket 312: 4th helical gear 600: 1st rotation axis 610: 2nd helical gear 620: Rotating blade 622 : Wing groove 630 : Guide screw 632: Guide spiral groove 634: Spacing maintenance groove C1: 1st linkage C2: 2nd linkage C3 : 3rd linkage C4 : 4th linkage C5: 5th linkage C6: 6th linkage C7: 7th Link Chain MC: Main Chain S(S1~S5) : Exhaust space

Claims

Claim 1 A sorting device for agricultural products comprising: a main body with an open top surface and one side surface; an input conveyor installed on the upper front end of the main body for sequentially inputting agricultural products to be sorted; a plurality of transfer rods for sequentially transporting agricultural products input by the input conveyor to the rear end; a spacing adjustment unit that sequentially transports the plurality of transfer rods while circulating them in an endless loop manner, causing the gaps between them to gradually widen during the process of transporting to the rear end; and a plurality of discharge conveyors for discharging agricultural products by size that fall into the space between the transfer rods that have been spaced apart by the spacing adjustment unit, wherein the device further comprises a driving motor driven by an electrical signal and a driving means for organically operating the input conveyor, the plurality of transfer rods, the spacing adjustment unit, and the discharge conveyor by the driving of the driving motor, wherein the driving means comprises a first rotating shaft that rotates in conjunction with the driving of the driving motor, a second rotating shaft that rotates in conjunction with the first rotating shaft and rotates the spacing adjustment units in conjunction by the meshing of helical gears during rotation, and the first rotating A fourth rotating shaft that rotates in conjunction with the shaft and rotates the input conveyor in conjunction with the rotation; a fifth rotating shaft positioned below the first rotating shaft on the same vertical line and rotates in conjunction with the first rotating shaft; a sixth rotating shaft positioned at the rear end on the same horizontal line spaced at a certain distance from the first rotating shaft and rotates in conjunction with the first rotating shaft; an eighth rotating shaft positioned below the sixth rotating shaft on the same vertical line and rotates in conjunction with the sixth rotating shaft; a main chain fitted to the first rotating shaft, the fifth rotating shaft, the sixth rotating shaft, and the eighth rotating shaft and rotates in an endless track manner; and a rotating shaft that rotates in conjunction with the sixth rotating shaft.An agricultural product sorting device comprising a seventh rotating shaft that rotates a second rotating shaft positioned below one of the gap adjusting parts by means of meshing of helical gears during rotation, and rotating shafts that rotate the plurality of discharge conveyors as rotation occurs in conjunction with the second rotating shaft, wherein the second rotating shaft and one of the gap adjusting parts located on the same vertical line as the second rotating shaft are engaged by a sprocket and a connecting chain to transmit power to each other. Claim 2 delete Claim 3 A sorting device for agricultural products according to claim 1, characterized in that the connecting ends of both sides of the conveying rods are installed to penetrate the main chains, and the connecting ends of the conveying rods are sequentially moved horizontally by the rotation of the gap adjustment part. Claim 4 In claim 3, the gap adjustment unit comprises a first rotation axis that rotates in conjunction with the driving of the driving motor, rotating blades formed to extend radially at a certain interval on the circumferential surface of the first rotation axis, and a guide screw that winds the rotating blades in a spiral shape, wherein the guide screw has guide spiral grooves formed continuously in a spiral shape into which the connecting ends of the conveying rods are inserted, gap maintaining grooves are formed between the guide spiral grooves, and the gap between the gap maintaining grooves gradually widens as it moves from the leading end to the trailing end. Claim 5 delete

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