JP2011045865A - Small-sized optical sorter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized optical sorter reduced in its installation space by achieving the compactification of an apparatus and suitably used in a farmhouse or the like. <P>SOLUTION: In the small-sized optical sorter including a lift part equipped with a plurality of lifters for raising a raw material, an optical sorting part for sorting the raw material raised by at least one lifter and a lateral feed conveyor for feeding the raw material sorted in the optical sorting part to the lift part, the lift part is constituted so that a plurality of the lifters are adjacently arranged behind the optical sorting part along the width direction of the optical sorting part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a small optical sorter suitable for use by farmers and the like.

  Conventionally, there has been known an optical sorter that sorts raw materials consisting of grains, resin pellets, coffee beans, and other granular materials into non-defective products and defective products, and sorts and removes foreign matters mixed in the raw materials (Patent Literature). 1).

  The optical sorter described in Patent Document 1 sorts the raw grain into a good grain and a defective grain through a two-stage sorting process. First, the grain put into the supply hopper 14A Is picked up by the first elevator 16, the free-falling grain is imaged by the camera 28, and the defective grains are flipped off by the ejector 40 to perform primary selection, and then the primary good grains are lifted by the second elevator 52. The secondary good sorting is performed by picking up primary good grains that have been granulated and falling freely with the camera 28 and flipping off the defective grains with the ejector 40.

  The optical sorter described in Patent Document 1 is provided with two elevators for performing a two-stage sorting operation. One is installed in the sorter main body 10A, and the other is installed in the open / close door 12A. Therefore, the entire apparatus is enlarged.

By the way, as a method for sorting good and defective raw materials using an optical sorter, a method comprising the following flow for performing primary sorting and secondary sorting can be considered.
(1) In the primary sorting section, the raw materials are sorted into non-defective products (hereinafter referred to as “primary defective products”) and defective products (hereinafter referred to as “primary defective products”), and the primary non-defective products are taken out of the optical sorter for bagging. Unload and transport the primary defective product to the secondary sorting section.
(2) The secondary sorting section sorts the primary defective products into non-defective products (hereinafter referred to as “secondary non-defective products”) and defective products (hereinafter referred to as “secondary defective products”), and the secondary non-defective products are subjected to primary selection again. The secondary defective product is discharged out of the sorter.

In order to realize the above sorting method, for example, the raw material is granulated to be supplied to the primary sorting unit, the secondary defective product is granulated to supply the primary defective product to the secondary sorting unit, and the secondary good product is transferred to the primary sorting unit. It is necessary to install an elevator (for example, bucket elevator etc.) in the light sorter for the purpose of lifting and so forth for transportation.
However, when a plurality of elevators are installed in the optical sorter, the entire apparatus becomes large as described in Patent Document 1, and expansion of the installation space is inevitable.

JP 2007-98276 A

  Accordingly, an object of the present invention is to provide a compact light sorter suitable for use by farmers and the like by reducing the installation space by making the entire apparatus compact.

  In order to achieve the above object, the present invention provides an elevating unit having a plurality of elevators for raising raw materials, a light sorting unit for sorting materials raised by at least one elevator, and a raw material sorted by the light sorting unit A transverse conveyor that conveys the elevating unit to the elevating unit, wherein the elevating unit is behind the light selecting unit and a plurality of elevators are disposed adjacent to each other along the width direction. It is characterized by.

  In the present invention, it is preferable that the transverse feed conveyor is disposed below the light sorting unit and conveys the raw material sorted by the light sorting unit to a predetermined elevator.

  In the present invention, the light sorting unit includes a first sorting unit and a second sorting unit that sorts the materials sorted in the first sorting unit, and the lifting unit is supplied to at least the first sorting unit It is preferable to include a first elevator that raises the raw material to be moved and a second elevator that raises the raw material supplied to the second sorting unit.

  In the present invention, it is preferable that the first elevator supplies the first sorting unit with the raw material to be input into the light sorting machine and the raw material to be sorted in the second sorting unit.

  In the present invention, it is preferable that the transverse feed conveyor is a vibration conveyor provided with a trough in which a plurality of ridges corresponding to the position of the raw material are formed and a vibration mechanism that swings the bottom surface of the trough.

  In the present invention, the transverse feed conveyor includes a flat belt and at least two roller shafts, and a plurality of partition walls are provided upright in the width direction of the flat belt, and a plurality of passages corresponding to the positions of the raw materials It is preferable to be a belt conveyor on which is formed.

  In the light sorter of the present invention, since the lifting unit has a plurality of elevators arranged adjacent to each other, the elevator itself can be made compact. Moreover, in the light sorter of the present invention, since the lifting unit is a rear side of the light sorting unit and a plurality of elevators are arranged adjacently along the width direction, the width of the apparatus is limited, and the installation space is reduced. By reducing the size, the apparatus can be miniaturized.

  Moreover, since the light sorter of this invention arrange | positions the transverse feed conveyor which conveys the raw material sorted by the light sorter part to the predetermined elevator, below the light sorter part, in order to arrange the transverse feed conveyor No new space needed.

  In the light sorting machine according to the present invention, the light sorting unit includes a first sorting unit and a second sorting unit that sorts the raw materials sorted in the first sorting unit, and the lifting unit includes at least a first lifting unit. Since it has the 1st elevator which raises the raw material supplied to a sorting part, and the 2nd elevator which raises the raw material supplied to the 2nd sorting part, it uses for the sorting method which sorts through a two-stage sorting process. be able to.

  In the light sorter according to the present invention, the first elevator is configured to supply the raw material to be input to the optical sorter and the raw material to be sorted in the second sorting unit to the first sorting unit. The number can be reduced by one and the selection can be performed more precisely.

The whole perspective view from the front upper right of the optical sorter in embodiment of this invention. Explanatory drawing of the internal structure of the optical sorter in embodiment of this invention. Explanatory drawing of the internal structure of the optical sorter in embodiment of this invention. Explanatory drawing of the vibration conveyor trough which comprises the optical sorter in embodiment of this invention.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an overall perspective view from the front upper right of an optical sorter in an embodiment of the present invention. 2 and 3 are explanatory views of the internal structure of the light sorter in the embodiment of the present invention. FIG. 2 is an explanatory view from the left side surface direction of the light sorter, and FIG. 3 is the front direction of the light sorter. The explanatory drawing from is shown, respectively. FIG. 4 is an explanatory diagram of a vibrating conveyor trough constituting the light sorter in the embodiment of the present invention.
The light sorter in the embodiment of the present invention can sort grains, resin pellets, coffee beans, and other granular materials as raw materials.

  The light sorter according to the embodiment of the present invention includes an elevating unit 1 that is located on the back side and pellets the raw material, a light sorting unit 2 that is located on the front side of the elevating unit 1 and sorts the raw material, and below the light sorter It is provided with a vibrating conveyor 3 that is positioned at and supplies the sorted raw material to the lifting unit 1.

  The elevating unit 1 is disposed adjacent to the first bucket conveyor 11, the second bucket conveyor 12 disposed adjacent to one side of the first bucket conveyor 11, and the other side of the first bucket conveyor 11. The third bucket conveyor 13 is arranged in a state of being arranged side by side in the front view width direction of the light sorter. As shown in FIG. 1, in the present embodiment, it is compactly accommodated in the housing. Yes.

  The 1st bucket conveyor 11 granulates the raw material thrown into the injection | throwing-in hopper 14 provided behind the raising / lowering part 1, and the 1st storage located above the primary selection part 20 of the light selection part 2 mentioned later of the said raw material It is for storing in the tank 15. The first bucket conveyor 11 pumps up the raw material (hereinafter referred to as “secondary non-defective product”) that has been made non-defective in the secondary sorting unit 21 of the light sorting unit 2 to be described later, and stores it in the first storage tank 15. Is to do.

  The second bucket conveyor 12 pulverizes the raw material (hereinafter, referred to as “primary good product”) that has been made good by the primary sorting unit 20 of the light sorting unit 2, and the raw material is removed from the refined product discharge basket 16 to the outside of the light sorting machine. It is for discharging.

  The 3rd bucket conveyor 13 granulates the raw material made into the inferior goods in the said primary selection part 20 (henceforth a "primary defective product"), and the secondary selection part 21 of the light selection part 2 mentioned later of the said raw material. This is for storing in the second storage tank 17 located above.

  Since the lifting / lowering unit 1 of the optical sorter in the present embodiment is configured so that the bucket conveyors 11 to 13 are arranged adjacent to each other, each drive shaft is used as a common shaft, and thus is driven simultaneously by the same drive source. It is something that can be done.

  Here, as shown in FIGS. 1 and 2, the charging hopper 14 is provided behind the elevating unit 1 and is configured to be able to input a raw material from the back side of the optical sorter.

  Moreover, as shown in FIG.1 and FIG.3, the said refined product discharge basket 16 is provided so that it may extend toward the exterior from the left side surface of an optical sorter.

  The light sorting unit 2 includes a light detection unit 22 and an ejector 23, and is divided into a primary sorting unit 20 and a secondary sorting unit 21 according to the front view width direction position of the light sorting machine.

The primary sorting unit 20 sorts the raw material supplied from the first storage tank 15, and the secondary sorting unit 21 sorts the raw material supplied from the second storage tank 17.
As shown in FIGS. 2 and 3, the raw material stored in the storage tanks 15 and 17 is supplied at a constant flow rate through the first and second rotary valves 18 and 19, respectively, and the first and second chutes 24 are respectively supplied. , 25 and is detected by the light detector 22. As a result, the primary non-defective product is provided from the first discharge rod 26 provided below the primary sorting unit 20, and the primary defective product is provided by the air from the ejector 23 and provided below the primary sorting unit 20. The discharged second discharge rod 27 is discharged onto the trough 30 of the vibration conveyor 3 described later. The secondary good products are also discharged onto the trough 30 of the vibration conveyor 3 from a third discharge rod 28 provided corresponding to the lower side of the secondary sorting unit 21. The raw material determined as a defective product in the secondary sorting unit 21 (hereinafter referred to as “secondary defective product”) is directly selected from the fourth discharge basket 29 provided below the secondary sorting unit 21. Discharged outside.

  The light detection unit 22 and the ejector 23 of the light sorting unit 2 in the present embodiment are capable of detecting a plurality of raw materials falling in a line shape in the width direction of the light sorter and appropriately repelling the raw materials with air. What is necessary is just to be able to use the well-known thing as described in patent document 1, for example, Therefore It abbreviate | omits description here.

The vibration conveyor 3 is disposed below the light sorting unit 2, and as shown in FIG. 4, the raw materials sorted by the light sorting unit 2 are separated into primary good products, primary defective products, and secondary good products. A trough 30 that can be received is provided.
The trough 30 is formed with a first rod 31, a second rod 32, and a third rod 33 corresponding to the positions of the raw materials discharged from the first to third discharge rods 26 to 28, It is comprised so that the raw material sorted by the light selection part 2 can be supplied to the target bucket conveyors 11-13, respectively.

Next, the operation of the light sorter in the embodiment of the present invention will be described.
When the raw material is charged into a charging hopper 14 provided behind the elevating unit 1, the raw material is lifted by the first bucket conveyor 11, stored in the first storage tank 15, and then constant through the first rotary valve 18. It is supplied to the first chute 24 at a flow rate.
The raw material falling on the first chute 24 is detected by the light detection unit 22 in the primary sorting unit 20 of the light sorting unit 2, and the primary non-defective product is discharged from the first discharge basket 26 to the first basket of the trough 30 of the vibration conveyor 3. The primary defective product is bounced by the ejector 23 and falls from the second discharge rod 27 onto the second rod 32 of the trough 30 of the vibration conveyor 3.

The primary non-defective product dropped on the first basket 31 is transported to the second bucket conveyor 12 of the elevating unit 1 by the action of the vibration conveyor 3 and is granulated, and is taken out from the left side surface of the optical sorter for bagging and the like. It is discharged out of the optical sorter from a fine product discharge basket 16 provided to extend toward the outside.
On the other hand, the primary defective product that has fallen on the second basket 32 is conveyed to the third bucket conveyor 13 of the elevating unit 1 and is granulated and stored in the second storage tank 17, and then via the second rotary valve 19. And supplied to the second chute 25 at a constant flow rate. The primary defective product falling on the second chute 25 is detected by the light detecting unit 22 in the secondary sorting unit 21 of the light sorting unit 2, and the secondary good product is detected from the third discharge rod 28 to the trough 30 of the vibrating conveyor 3. The second defective product is bounced by the ejector 23 and directly discharged from the fourth discharge rod 29 to the outside of the light sorter.

  The secondary non-defective product dropped on the third basket 33 is conveyed to the first bucket conveyor 11 of the elevating unit 1 by the action of the vibration conveyor 3 and is granulated together with the raw material charged into the charging hopper 11 to be stored in the first storage tank. 15 is stored. Then, the light is sorted again in the primary sorting unit 20 of the light sorting unit 2.

  In the above-described embodiment of the present invention, three bucket conveyors arranged adjacent to each other as the lifting unit 1 are used. For example, when it is not necessary to granulate primary good products, two bucket conveyors are used. The number of bucket conveyors arranged adjacent to each other can be changed as appropriate. Needless to say, the bucket conveyor can be changed with other lifting means having the same function.

The light sorter in the embodiment of the present invention has a configuration in which the elevating unit 1 is made compact by arranging a plurality of bucket conveyors adjacent to each other, and the elevating unit 1 is arranged behind the light selecting unit 2. Thus, since the width of the front view is limited, the installation space can be reduced and the apparatus can be downsized.
Moreover, since the optical sorter in embodiment of this invention has arrange | positioned the vibration conveyor 3 for supplying the raw material after a sort to the raising / lowering part 1 below the light selection part 2, the vibration conveyor 3 is arrange | positioned. It does not require new space to do.

  The light sorter in the above embodiment of the present invention is an example of performing a method for sorting good and defective raw materials using the light sorter described in paragraph [0005]. A sorting method that requires a plurality of elevators, a light sorting unit, and a means for conveying the material sorted by the light sorting unit to the elevator, as in the sorting method described in Patent Document 1. It is applicable when implementing In that case, what is necessary is just to change suitably the number of the elevators in the raising / lowering part 1, the structure of the trough 30 of a vibration conveyor, etc. according to the selection method. The vibration conveyor according to the embodiment of the present invention has a structure including a trough formed with a plurality of troughs corresponding to the position of the raw material and a vibration mechanism that swings the bottom surface of the trough. For example, it is possible to employ a well-known one using an eccentric wheel, and the manufacturing cost of the entire sorter can be reduced.

  Instead of the vibration conveyor, a flat belt and at least two roller shafts are provided, and a plurality of partition walls are erected in the width direction of the flat belt, and a plurality of passages correspond to the positions of the raw materials. It can also be a formed belt conveyor. Since such a belt conveyor having a plurality of passages does not use the vibration mechanism, it is possible to suppress the vibration of the sorter and prevent the generation of noise and realize a quiet operation.

  The light sorter of the present invention has a plurality of elevators arranged adjacent to each other so that the elevator part is compact, the elevator part is arranged behind the light sorter part, and the raw material after sorting is supplied to the elevator corresponding to the purpose. Since the vibration conveyor that can be arranged is located below the light sorting section, the width of the entire device is limited, it can be downsized by reducing the installation space, it is suitable for use by farmers, etc. .

DESCRIPTION OF SYMBOLS 1 Lifting part 2 Light selection part 3 Vibrating conveyor 11 1st bucket conveyor 12 2nd bucket conveyor 13 3rd bucket conveyor 14 Loading hopper 15 1st storage tank 16 Refinement | discharging basket 17 2nd storage tank 18 1st rotary valve 19 2nd Rotary valve 20 Primary selection unit 21 Secondary selection unit 22 Light detection unit 23 Ejector 24 First chute 25 Second chute 26 First discharge rod 27 Second discharge rod 28 Third discharge rod 29 Fourth discharge rod 30 Trough of vibration conveyor 31 1st rod 32 2nd rod 33 3rd rod

Claims (6)

A lifting part having a plurality of elevators for raising the raw material;
A light sorting unit that sorts the raw materials raised by at least one of the elevators;
A transverse feed conveyor that conveys the raw material sorted by the light sorting unit to the lifting unit;
In the light sorter comprising
The elevating unit includes a plurality of elevators arranged adjacent to each other along the width direction behind the light selecting unit.   2. The light sorter according to claim 1, wherein the transverse feed conveyor is disposed below the light sorting unit, and conveys the raw material sorted by the light sorting unit to a predetermined elevator. The light sorting unit includes a first sorting unit and a second sorting unit that sorts the materials sorted in the first sorting unit,
The said raising / lowering part is equipped with the 1st elevator which raises the raw material supplied to a 1st selection part at least, and the 2nd elevator which raises the raw material supplied to a 2nd selection part, The 1st or 2 characterized by the above-mentioned. The light sorter described.   4. The light sorting apparatus according to claim 3, wherein the first elevator is configured to supply the first sorting unit with the raw material input to the light sorting machine and the raw material sorted in the second sorting unit. Machine.   The transverse feed conveyor is a vibrating conveyor provided with a trough in which a plurality of ridges corresponding to the position of the raw material are formed, and a vibrating mechanism for swinging the bottom surface of the trough. The light sorter according to any one of the above. The transverse feed conveyor includes a flat belt and at least two roller shafts, and a plurality of partition walls are erected in the width direction of the flat belt to form a plurality of passages corresponding to the positions of the raw materials. The optical sorter according to claim 1, wherein the optical sorter is a belt conveyor.