JPH02107382A - Classification sorter for onion and the like - Google Patents

Abstract

PURPOSE:To improve sorting precision of onions by installing a plurality of string bodies which are set to have a level difference each other and move in parallel in right and left sides and separating objects which drop from the gap between the strings in right and left from remaining objects which are kept going on the strings while they are transported. CONSTITUTION:When onions on a roller conveyer come to a first classification sorter, only ones which can pass the gap between V-belts 17a, 17b whose distance is previously set in class (S) drop downward and are received on a drawing conveyer. The remaining onions then come to a second classification sorter, ones which meet the gap between V-belts 17a, 17b set in class (M) drop downward. Like this, in a third and fourth classification sorters, onions are classified into (L), (2L), and the rest of the onions are classified as (3L). The V-belts are set in the way that the V-belts 17a and the V-belts 17b are set reciprocally in a high position and in a low position respectively, so as to align the onions in an order and make it easy to pass the gap between the V-belts.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a grade sorting device for onions, etc.

[Problem to be solved by the prior art and the invention] - In order to sort green onions, conventionally, holes of a predetermined shape are formed in a wide belt conveyor or a rotating drum so that the holes do not fall through. A form in which the belts are sorted into categories, or a form in which the class is sorted based on whether or not the narrow belts that are arranged at a certain interval on the left and right fall fall or not (imaginary line in Fig. 7).
etc.

However, in the former form, there is a risk that the stems and roots may get caught and proper sorting may not be possible. In addition, in the latter form, the belt in the transfer and sorting process tends to swing in the left and right directions, impairing the sorting accuracy.

[Means to solve the problem]

This invention is an attempt to solve the above-mentioned drawbacks, and consists of a plurality of belt-like string-like bodies that move in parallel from side to side and are provided with alternating steps to receive the materials to be sorted. The apparatus is configured to classify onions, etc., which separates and sorts objects to be sorted, which fall from the gap between left and right string-like bodies while being transported, and objects to be sorted, which remain on the string-like bodies and are transferred.

[Operation and effect of the invention]

In the grade sorters 16a to 16d, the objects to be sorted, such as onions, are arranged in a relationship in which high-position string-like bodies 17a, 17a... and low-position string-like bodies 17b, 17b... are arranged alternately. Since it is provided in the cord-like body 17a.

A V-shaped transfer section is formed in the order of 17b and 17a, and the onions to be supplied are arranged so that they can easily pass through the string-shaped body spacing section, improving the sorting efficiency.

In addition, compared to the case where a spherical object such as an onion is dropped from the space between the string-like bodies arranged in a row (i) on the same surface -1-, since there are steps alternately on the left and right, the onion does not come into contact with the string-like bodies. It changes its position and rolls easily, reducing stagnation.

In addition, when a V-belt is used as the string-like body, since the force due to the onion contact acts on the V-belt in an oblique direction, the belt rigidity can be utilized to a large extent, and the belt interval can be distorted, thereby increasing the sorting accuracy.

〔Example〕

An embodiment of this invention will be described based on the drawings.

The figure shows a receiving, sorting, and cartoning line of an onion sorting facility, in which a supply conveyor 2 is equipped with a receiving container damper 1 at the starting end, followed by a peeling device 4 consisting of a roller conveyor 3, and a brush body that revolves around itself. A peeling device 5 is provided. Reference numeral 6 denotes a belt conveyor that collects and transports the skin peeled off at the front and back spacing of the roller conveyor 3 and the brush body.

Reference numeral 7 denotes a foreign language sorting section, which selects objects to be sorted whose surface scratches, shapes, etc. do not meet the standards based on visual judgment by an operator, and takes them out of the sorting line.

That is, a belt conveyor 9 for foreign words is arranged between the roller conveyors 8, 8 provided on both the left and right sides so as to convey the foreign words in the opposite direction to the conveying direction of the conveyors 8, 8, and the foreign words are conveyed to the outside of the sorting line via the chute 10. It is connected to the foreign language drawer conveyor 12.

Most of the objects to be sorted left on the roller conveyors 8, 8 flow down the chute 13 and are supplied to the sorter 14.

This sorting machine 14 is constructed by providing a plurality of sets of a diffusion roller conveyor 15 and a belt type class sorting machine 16 in the transport direction, and four sets are arranged in the rotation direction.

It can be divided into five classes. Class sorter 16
A plurality of V-belts 17, 17... are stretched by pulleys 18 and 19 on the two sides, front and rear pulleys 20 and 21 on the lower part, and a tension roller 22, among which a shaft 24 interlocked with a drive motor 23 Pulley 1 fixed to
It is configured to move in the direction of arrow A with the rotation of 8. Among these V-belts 17.17..., the V-belts on both the left and right sides and the inner bells 1 to 17a, 17a
. . . is a support rod 29.29 that connects the front and rear floating pulleys 25, 25, 26, 26, .
The structure is such that the position can be changed downward by vertical adjustment, and steps can be formed alternately in the left-right direction with respect to the remaining V-belts 17b, 17b, . . . .

That is, the support rods 29, 29 connect the tip side screw portions of the vertical screws #I 32, 32 provided extending downwardly from the transmission case 31.31 fixed to the machine frame 30, respectively, to the left and right sides.
It fits into the female screw member 33 provided in the transmission case 3.
The support rods 29, 29 can be raised and lowered in parallel by forward and reverse rotation of the handles 34, 34 connected to the handles 1.31. Furthermore, inside the transmission case 31.31 is the handle 34.
34 rotations or an intermediate shaft 35 that communicates the inside of both transmission cases.
．． A bevel gear or worm gear interlocking mechanism (not shown) is incorporated so that the rotation of 35 can be transmitted to the vertical screw shafts 32, 32. 36 is a pull-out conveyor for receiving and transporting objects to be sorted that fall from between the V-belts 17a and 17b.

The above-mentioned class sorting machines 16 are arranged in four sets 16 in front and rear in the direction of transporting the objects to be sorted.
A to 16d are provided, and the structure is such that they can be sorted into four classes. The stepped left and right belt intervals in these plurality of class sorters are narrowest in the first class sorter 16a of the transporter, and widen in the order of the second, third, and fourth. The handle 34 is configured to be adjusted accordingly.

The drawer conveyor 36 has separate class sorters 16a to 16d.
provided for each Belt conveyors 37 and 38 capable of transporting in different directions are installed at the end of the conveyor 36, and can receive objects of a predetermined class randomly supplied from the pull-out conveyor 36 and transport them in two directions. .

At the end of these belt conveyors 37 and 38, takeover conveyors 41 and 42 are arranged to take over the automatic weighing and packaging machines 39 and 40.

43 is 21! 44 is a box delivery conveyor for transporting empty cardboard boxes; 45 is a machine for sealing cardboard boxes in which the items to be sorted are weighed and packaged (not shown); This is a product conveyor that transports products to The material is transferred to a conveyor 48, 48 and subjected to appropriate post-processing.

” - Explain the effect of the example.

The onions that are sequentially supplied from the container damper 1 are sent to the peeling device 4 while being spread on the surface of the supply container 2, and the skin separated during the transfer falls downward from the front and back spacing of the roller conveyor 3 and is transferred from the bell 1 to the conveyor. 6 is accepted. Subsequently, in the peeling device 5, the skin that has begun to peel off from the surface of the onion is completely separated while being brushed and dropped onto the surface of the belt conveyor 6 below.

The surface-treated onions reach a foreign language sorting section 7.

At Niko, among the onions on the roller conveyor 8.8-f-,
Non-standard onions are sorted out visually by a worker and transferred to the foreign language belt conveyor 9. The onions remaining on the 60-ra conveyor 8, 8 side are supplied to the starting end of the sorting machine 14 via shoe I-13.

When reaching the 1st class sorter 16a, only those that pass between the V-belts 17a and 17 parts previously set for small diameters, that is, class S, are received by the lower drawer conveyor 36.
It is distributed and supplied to either of two belt conveyors 37.degree. 38 and reaches an automatic weighing device of 39.40 parts.

Subsequently, the onions remaining in the first grade sorter 16a reach the second grade sorter 16b.

Here, the V-belt 17a and the 17-part interval are set to class M, which has a slightly larger diameter. Items corresponding to the class M fall and are received by the drawer conveyor 36 below, and the same goes to the ΔJ weighing machine 39.40 parts.

Regarding the 3.4th class sorting machines 16c and 16d,
It will be divided into 2L grades, and the grade sorting machine 16a
~1.6 Onions that do not fall under any of the above d are taken out from the drawer conveyor at the final stage as 3L. Two automatic weighing machines 39.40 are used per predetermined floor edge and the onions are sequentially supplied to empty cardboard boxes waiting below. When it reaches a predetermined weight such as 15 ktc, it is delivered to the product conveyor 45 side.

In the class sorting machines 16a to 16d described in item 1, onions to be sorted are arranged in a relationship in which the high-position V-belts 17a, 17d... and the low-position V-belts 17b, 17b... are arranged alternately. Since the V-belt 17 a +
A V-shaped transfer section is formed in the order of 17 b + 17 a, and the onions to be supplied are arranged in a state where ■ Pel 1
~It becomes easier to pass through the gaps, improving sorting efficiency.

Also, compared to the case where a spherical object such as an onion is dropped from the V-belt spacing section arranged in k rows, the contact position of the onion with the V-belt changes because there are steps on the left and right alternately. E] makes it easier to roll and reduces stagnation. However, since the force due to the onion contact acts in the diagonal direction of the V-belt, the belt rigidity can be utilized to a greater extent than in the case of the above-mentioned conventional device, and the belt intervals are less likely to be distorted, making it possible to improve the sorting accuracy.

Incidentally, when changing the size of the interval between adjacent V-belts, this can be easily done by rotating the handle 34 in the forward and reverse directions.

In this embodiment, belt conveyors 37 and 38 are connected to the drawer conveyors 36 for each class, and automatic weighing and packaging devices 39 and 40 are attached to these belt conveyors 37 and 38, so that a large amount of materials to be sorted can be processed. However, as shown in FIG. 8, the throughput can be increased by using two drawer conveyors 49 or by constructing them to be wide and connecting two automatic weighing and packaging devices 50 and 51 to the terminal end of the drawer conveyors 49. It will be secured.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view of the main parts, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is an overall plan view, and Fig. 4 is a front view. FIG. 5 is a side view of the processing process, FIG. 5 is a side view of the entire sorting machine, FIG. 6 is a sectional view taken along line B-B in FIG. be. In the figure, 14 is a sorting machine, 15 is a diffusion roller conveyor 15.
16 is a belt type class sorter, 17a, 17b-... are V belts, 18, 19, 20.21 are pulleys, 22 is a tension roller, 23 is a drive motor 23.25.26.
... is a floating pulley, 27.28 is a support shaft, 29.29 is a support rod, 30 is a machine frame, 31.31 is a transmission case, 32.
32 is a vertical screw shaft, 33.33 is a female screw member, 34.34
is a handle, and 36 is a drawer conveyor.

Claims (1)

[Claims] (1) A plurality of string-like bodies such as V-belts that move in parallel on the left and right are provided alternately with steps, and while receiving and transporting the supplied material to be sorted, the space between the left and right string-like bodies is This is a grade sorting device for onions, etc., which separates and sorts objects that fall from the ground and objects that remain on strings and are transported.