JPS6221591B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic sorting machine for grains such as rice, wheat, soybeans, and adzuki beans, and fruits such as tangerines, plums, and apricots.

[Conventional technology and problems]

Conventionally, this type of sorting machine generally transports grains, fruits, etc. in a horizontal state and sorts them using sorting holes formed into large, medium, and small sizes. Not only did this require a large installation area, but the collection units were separated, which resulted in a lack of centralized control.

As a means to solve these problems, a sorting machine as shown in Japanese Utility Model Publication No. 28-901 has been proposed. This machine sorts coins, and a multiple sorting cylinder, which is made up of a plurality of cylinders of different diameters connected concentrically at appropriate intervals, is rotatably mounted horizontally on the machine frame. In each cylinder, a large number of screening holes are formed, the diameter of which gradually decreases from the center cylinder to the outer cylinder, and a transfer body for the material to be sorted is provided on the inner surface of each cylinder. A supply hopper for the objects to be sorted is provided on one side of the cylindrical body, and a recovery hopper is separately provided at the discharge port of each cylindrical body.

However, in this type of product, the sorting hole is formed over the entire area of the cylinder, so the objects to be sorted fed from the supply hopper are passed through the sorting hole in the central cylinder to the next stage and the next stage of sorting. There is a drawback that the material is immediately sorted at the hole and transferred to the discharge end of the next stage or the next stage, resulting in incomplete sorting, that is, a sorting error. Furthermore, this sorting machine has problems such as a complicated design because all the collection hoppers are concentrated on the same side.

[Purpose of the invention]

The present invention was made in view of these circumstances, and by concentrically connecting cylinders equipped with sorting holes of different sizes at appropriate intervals, the entire device can be made more compact and the collection body can be made more compact. In addition to improving centralized management efficiency, there is no incomplete sorting, that is, no sorting mistakes, and in addition, the discharge port and
It is an object of the present invention to provide a sorting machine which can further eliminate sorting errors and improve the ease of design by distributing the collection hoppers alternately to the left and right.

[Structure of the invention]

The configuration of the present invention that solves the problems of the prior art is as follows:
A multiple sorting cylinder formed by concentrically connecting a plurality of cylinders with different diameters at appropriate intervals is rotatably suspended horizontally on the machine frame, and each of the cylinders forming the multiple sorting cylinder is The cylindrical body is formed with a large number of sorting holes whose diameters decrease sequentially from the central cylindrical body to the outer cylindrical body, and a conveying body for the objects to be sorted is provided on the inner surface of each cylindrical body. In an automatic sorting machine for grains, fruits, etc., which has a supply hopper for objects to be sorted on one side of the body and a recovery hopper at each discharge port of each cylinder, the discharge port formed in each cylinder is used. are formed alternately on the left and right sides, and a non-porous part is provided on the side of the starting end of the object to be sorted of the other cylindrical bodies except the outermost cylindrical body.

〔Example〕

To explain the details of the embodiment with reference to the drawings, 1 is a machine frame, and in the machine frame 1 are multiple sorting cylinders A in which a plurality of cylindrical bodies 2, 3, 4... are connected concentrically at appropriate intervals. horizontally so that it can rotate. The cylindrical bodies 2, 3, 4... are connected by connecting plates 5 provided piecemeal, and the outer periphery of both ends of the outermost cylindrical body 2 is rotatably supported by guide rollers 6 provided on the machine frame 1. has been done. Further, one end of a radial arm 7 as shown in FIG. 1 is connected to the innermost cylindrical body 2,
A pulley 8 is provided at the center of the group of arms 7,
This pulley 8 is connected to a drive source via a belt, so that the multiple sorting cylinder A is rotated at a predetermined number of rotations. Moreover, each of the above-mentioned cylindrical bodies 2, 3, 4...
are provided with separate screening holes 9, 10, 11... whose diameters are successively smaller from the innermost cylinder 2 serving as the center to the outer cylinders 3, 4..., and each cylinder 2, 3, 4... On the inner surface of ..., there is a transfer body 1 which alternately changes the transfer direction of the objects to be sorted, left and right.
2, 13, 14... are provided, and furthermore, each transport body 1
At the discharge ends of the discharge ports 15, 16, 17, which are discharged by the induction action of the discharge ports 15, 16, 17...
9, 20, 20'... The transfer start end side of the central cylindrical body 2 faces the supply port of a supply hopper 21 for objects to be sorted fixed to the machine frame 1. Although not particularly shown, the supply hopper 21 is equipped with an elevator. In some cases, a series of discharge ports may be installed.
In addition, other cylindrical bodies 2 except the outermost cylindrical body 4,
3. Non-porous portions 22, 23 are provided on the starting end side of transferring the objects to be sorted.
... are provided to prevent the occurrence of sorting errors, and a weir plate 24 is provided at the transfer start end of each cylinder 2, 3, 4... to prevent the discharge of the objects to be sorted.
25, 26... are provided. In the figure, 27 is a cover provided on the machine frame 1, 28 is a dust exhaust duct provided on the cover 27, and 29 is a dust exhaust fan facing the base of the dust exhaust duct 28.

Although the multiple sorting cylinder A in the above embodiment was formed into a multiple structure by a plurality of cylinders, it could be constructed by a polygonal cylinder such as a hexagonal or octagonal cylinder instead of this cylinder. It is not limited to the cylindrical body of the embodiment.

[Effect]

Next, to explain the sorting means based on the above embodiment, the multiple sorting cylinder A is rotated,
When the objects to be sorted are introduced from the hopper 21, all the objects to be sorted are accommodated in the innermost cylindrical body 2, and are sorted while being transferred by the transfer body 12 in the direction of the discharge port 15. And this cylindrical body 2
The objects to be sorted that have not been sorted through the sorting holes 9 are collected from the discharge port 15 via the collection hopper 18 to a predetermined location.

The objects to be sorted that have passed through the sorting hole 9 move into the next cylinder 3, and are re-sorted while being conveyed by the conveyor 13 in the opposite direction to the discharge port 15.
The materials that have not been sorted out from the sorting hole 10 of this cylindrical body 3 are sent to the recovery hopper 1 through the discharge port 16.
9 and then collected at a predetermined location.

In this way, the objects to be sorted transferred into the outermost cylinder 4 are further sorted through the sorting hole 11, and those that have passed through the sorting hole 10 are transferred to a predetermined collection hopper 20'. to a place,
Those that do not pass through the sorting hole 11 are collected into the collection hopper 20 via the discharge port 17. In addition, when foreign objects such as dust and exhaust rods are involved, floating objects are sucked up by the action of the dust exhaust fan 29 and discharged to the outside from the exhaust duct 28, and other foreign objects are removed from the cylindrical body 2. When the air is discharged from the outlet 15, it is air-selected by another blower fan or the like.

According to the embodiment, three cylindrical bodies 2,
By using 3 and 4, the objects to be sorted are sorted into four types. Also, the non-porous portions 22 and 23 provided in the cylindrical bodies 2 and 3 allow the objects to be sorted supplied from the supply hopper 21 or the cylindrical body 2 to be immediately sorted through the sorting holes 9 and 10 and sent to the next stage. Cylindrical body 3,
Alternatively, it is moved to the discharge end of the cylindrical body 4 to prevent incomplete sorting, ie, a sorting error. Further, the reason why the discharge ports 15, 16, 17... are arranged alternately on the left and right is as described above.
This is to prevent the objects to be sorted that have passed through from 0 to immediately move to the vicinity of the next stage discharge port, and to solve the design complexity in which the collection hoppers 18, 19, and 20 are concentrated on the same side. .

〔effect〕

As described above, according to the configuration of the present invention, the following effects can be obtained.

(a) With a simple configuration, objects to be sorted can be sequentially sorted and collected three-dimensionally, and since the overall configuration is three-dimensional using space, the installation area is small; (b) In particular, in the present invention, it is possible to make the device more compact, and it is also widely used for sorting grains such as rice, wheat, soybeans, and red beans, as well as fruits such as mandarin oranges and plums, and has good sorting efficiency. Since the discharge ports formed in each cylinder are alternately formed on the left and right sides, the collection hoppers connected to each discharge port can be distributed and installed alternately on the left and right sides, which makes the design easier, and
The selection hole 9 in the center and the next stage cylinders 2 and 3,
It is possible to prevent the objects to be sorted that have passed through from 10 from immediately moving to the vicinity of the discharge port of the next stage, and to significantly reduce sorting errors.

(c) Since the non-porous parts 22 and 23 are provided on the transfer start end side of the objects to be sorted in the other cylinders except for the outermost cylinder, the materials supplied from the supply hopper or from the center cylinder 2 can be The sorting body immediately enters the sorting holes 9 and 10.
The discharge end 2 of the cylinder 3 or 4 is sorted at the next stage, and incomplete sorting, that is, occurrence of sorting errors can be reasonably prevented.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view, and FIG. 2 is a side view of the same. A...Multiple sorting cylinder, 1...Machine frame, 2, 3,
4... Cylindrical body, 9, 10, 11... Sorting hole, 1
2, 13, 14... Transport body, 15, 16, 17...
...Discharge port, 18, 19, 20, 20'... Recovery hopper, 21... Supply hopper, 22, 23...
Non-porous area.

Claims (1)

[Scope of Claims] 1 (a) A multiple sorting cylinder formed by concentrically connecting a plurality of cylinders of different diameters at appropriate intervals is horizontally suspended in a freely rotatable manner on the machine frame. In each cylinder forming the multiple sorting cylinder, a large number of screening holes are formed, the diameter of which gradually decreases from the center cylinder to the outer cylinder, and the objects to be sorted are formed on the inner surface of each cylinder. In an automatic sorting machine for grains, fruits, etc., a conveying body is provided, a supply hopper for objects to be sorted is connected to one side of the central cylinder, and a collection hopper is connected to each discharge port of each cylinder. (b) The discharge ports formed in each of the above-mentioned cylinders are formed alternately on the left and right, and a non-porous part is provided on the side of the starting end of the object to be sorted of the cylinders other than the outermost cylinder. Automatic sorting machine for grains, fruits, etc.