JPH0111347Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a sorting device equipped on a potato harvester used to harvest potatoes from the field.
Alternatively, the present invention relates to a sorting device used to sort harvested potatoes or seed potatoes used for planting.

(Conventional technology) The selection of Japanese yam potatoes involves sorting them into small size S, medium size M, and large size L when harvested from the field and shipping them to the market. There are two ways to sort potatoes.

Conventionally, the sorting devices used in the above sorting work include a rod type in which rods are arranged side by side at predetermined intervals, and a perforated conveyor type in which holes of the size to be sorted are drilled in the belt of a belt conveyor. There are two types of potatoes, both of which have a relatively round shape and can be sorted without any trouble, but can be sorted smoothly if they have a long and elongated shape called Mayquin. There is a problem where it is not possible to do this.

(Problems to be Solved by the Invention) In view of the conventional circumstances as described above, the present invention makes it possible to reliably sort even round and long potatoes, regardless of the type of potatoes.

(Means for Solving the Problems) The present means for solving the above problems consists of a plurality of rubber sorting rollers each having a disk portion formed on one side of the boss portion and mounted on a shaft at predetermined intervals. They are arranged side by side to form a sorting means, and the outer diameters of the disk portions of the sorting rollers are made to vary in size depending on the size to be sorted, thereby making the sorting spaces different.

(Function) By arranging a plurality of the above-mentioned sorting rollers in a skewered manner on the shaft, a space large enough to be sorted by the front, rear, left and right sorting rollers is formed, and that space is also filled with the sorting rollers. The difference is that the outer diameter of the disc part is made different in size, and when the sorting roller is skewered on the shaft, the sorting space can be adjusted as appropriate by changing the thickness of the spacer inserted between the rollers. .

(Example) Hereinafter, to explain a stationary sorting device as an example, Fig. 1 is a plan view of the sorting device, A is a machine frame,
B ₁ , B ₂ , B ₃ are conveying means, C ₁ is a sorting means for small beads,
C ₂ is a sorting means for medium balls, the small ball sorting means C ₁ is installed between transport means B ₁ and B ₂ , and the medium ball selection means C ₂ is installed between transport means B ₂ and B ₃ . Equipped.

The machine frame A is formed by side frames 1a and 1b that face each other in parallel with a predetermined interval and legs 2 that hold the side frames 1a and 1b at a predetermined height.
Between a and 1b, there is a conveying means B ₁ , a small ball sorting means C ₁ ,
A conveying means B ₂ , a sorting means C ₂ for medium balls, and a conveying means B ₃ are installed in this order in the direction of conveying _the potatoes. A carry-in section 3 is formed by the bottom plate 3a and the side plates 3b, and is adapted to accommodate the pods and potatoes to be sorted.

The conveyance means B ₁ , B ₂ , and B ₃ are made by arranging metal round rods 4 with a diameter of about 10 mm at predetermined intervals, bending both ends at right angles, and having the tips curved in an annular shape and placing them next to each other. It consists of an endless conveyor belt 5 formed by winding and connecting the bent portions of round bars in sequence, and the conveyor belt 5 has a drive sprocket 6a rotatably attached to the side frames 1a and 1b and a driven sprocket. It is wound around the sprocket 6b. In addition, the conveyance means B ₁ is installed in an upwardly inclined manner, and hook projections 20 are fixed at intervals on the conveyance belt 5 in order to convey potatoes upward. It is designed to support and transport things.

The small ball sorting means C ₁ is made up of a plurality of rubber sorting rollers 7, each of which has a disk part 7c integrally formed on one side of a boss part 7a having a square hole 7b, mounted on a shaft 8 in a skewered manner. A disk-shaped spacer 9 having the same diameter as the outer diameter of the boss portion is inserted between the sorting rollers 7 mounted on the shaft 8 as appropriate depending on the size of the space to be set. has been done. The disk portions 7c are arranged to face each other on a straight line in the potato conveyance direction.

Therefore, the space a, which is set according to the size to be sorted, is defined by the boss portions 7a and disk portions 7c of the front, rear, left and right sorting rollers 7.

Further, the shaft 8 equipped with the sorting roller ₇ constituting the small ball sorting means C1 is suspended horizontally between the side frames 1a and 1b, and two sprocket gears 16 for transmitting rotational force are installed at one end of each shaft. The rotational force of the motor 10 mounted on the machine frame A and the speed reducer 11 is transmitted to the drive wheel 12 of the conveying means B ₁ by a chain 13, and then the chains are sequentially wound alternately to generate one power source. At the source, conveying means B ₁ to B ₃ and sorting means C ₁
~C ₂ are all linked together to operate.

The medium ball sorting means _C2 is similar to the small ball sorting means _C1 , in which a sorting roller 15 having a boss portion 15a and a disk portion 15c is attached to the shaft 14 in a skewered manner so as to rotate integrally through its square hole 15b. , and the sorting roller 15 has a boss portion 15
The outer diameter of a is made the same as the outer diameter of the boss portion 7a of the sorting roller 7 of the small ball sorting means _C1 , and the outer diameter of the disk portion 15c is made larger than the outer diameter of the disk portion 7c. The disk portions 15c are arranged to face each other on a straight line in the potato conveyance direction.

A spacer 9 is appropriately interposed between the sorting rollers 15 mounted on the shaft 14 in a skewered manner, so that a space a is formed between the boss portions 15a of the front, rear, left, and right sorting rollers and the disc portions 15c arranged opposite to each other in the potato conveying direction. A space b larger than that is formed.

In the figure, 17 is a scraper that scrapes off soil adhering to the sorting rollers 7 and 15, and 18 is a means for sorting small beads.
A discharge gutter ₁₉ receives and discharges the Japanese yam P ₁ sorted by the medium-sized medium _sorting means C ₂ and discharges it.

With the above configuration, the beans and potatoes accommodated in the carry-in section 3 are transported upward by the operation of the transport means B ₁ and are sequentially sent to the small ball sorting means C ₁ . The potatoes supplied to the small particle sorting means C ₁ are sent forward while being rolled by the rotating sorting roller 7, passing through a vertically penetrating space a defined by the sorting rollers 7. Size of yams P ₁
Only the potatoes are removed in this part, and the potatoes larger than the space a are sent to the conveying means _B2 . Among the potatoes sent to the medium size sorting means C ₂ by the operation of the conveyance means B ₂ , the potatoes P ₂ are of a size that passes through the vertically penetrating space b divided by the sorting rollers 15. Some portions of the potatoes are removed, and the remaining large potatoes _P3 are sent to the conveying means _B3 .
As a result, three sizes are available: small ball P ₁ , medium ball P ₂ ,
The large ball _P3 is sorted.

In addition, the conveyance speed of potatoes is determined by the sorting means C ₁ ,
Efficient sorting can be achieved by adjusting the speed according to the amount of supply to C ₂ , slowing down when the amount of supply is large, and speeding up when the amount of supply is small.

Further, the supply amount of potatoes can also be adjusted by thinning out the hooking protrusions 20 provided on the conveying means _B1 so that there are no teeth.

Furthermore, size adjustment for sorting is done by sorting means C ₁ and C ₂
Both can be adjusted by increasing or decreasing the number of spouts 9 interposed between the sorting rollers 7 and 15.

(Effects of the invention) The present invention constitutes a sorting means by arranging the disk part of a rubber sorting roller group in which a disk part is formed on one side of the boss part in a straight line in the conveyance direction of potatoes. In addition, since the size of the sorting space is made different by varying the outer diameter of the disk portion, the sorting space of each sorting means can be easily and accurately set, and each sorting roller rotates. While the potatoes are conveyed in a fluctuating manner, they are sorted by falling from sorting spaces of different sizes, and round-shaped Baron potatoes and long May-in potatoes can be reliably sorted.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway plan view, FIG. 2 is a front view of the same, and FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG. 1. In the figure, A: machine frame, B ₁ , B ₂ , B ₃ : conveyance means,
C ₁ : Sorting means for small balls, C ₂ : Sorting means for medium balls,
7: Sorting roller of the small ball sorting means, 15: Sorting roller of the medium ball sorting means, 7a, 15a: Boss portion of the sorting roller, 7c, 15c: disk portion of the sorting roller.

Claims (1)

[Scope of utility model registration request] A sorting device is provided with a sorting means for small and medium balls, which is a group of rubber sorting rollers with a disk formed on one side of a boss part, in the middle of a conveying means attached to a machine frame. The outer diameter of the disc part of the sorting roller for medium balls in the means is made larger than the outer diameter of the disc part of the sorting roller for small balls, and each disc part is conveyed in both the small and medium balls sorting means. A potato sorting device placed in a straight line.