JPS5950394B2 - Sorting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of a sorting machine that performs extensive sorting according to the length of particles, and mainly distinguishes between long particles such as whole grains and half grains of long flat irregularly shaped grains such as rice and wheat. It is used to separate short particles such as those that have been crushed into lengths of 1 to 30 cm, and it goes without saying that it is also widely used for particles of various materials such as earth and sand and plastics.

In the conventional grain length sorting mechanism, a mixture of long and short grains is poured into a sorting cylinder with a large number of holes, and after the particles of each length are immersed in the holes, the cylinder wall is rotated and tilted to determine the phase of the cylinder. The angle of inclination increases as the particles move, and the long particles fall out of the pot hole with a time lag from the short particles.The short particles fall into the hopper supported at the falling point of the short particles.The short particles are discharged outside the receiving machine and fall off earlier. The long particles are discharged outside the machine along the sorting tube, and are separated into long and short particles by providing separate discharge sections for both long and short particles.

However, when short particles enter the pot holes, they become clogged, and eventually the majority of the pot holes become clogged and the sorting action stops, making it impractical. This has become a fatal flaw in pothole sorting. The present invention forms a porous wall of the sorting tube with a through hole, contacts the outer peripheral surface of the sorting tube with a belt, and uses the sorting tube as one of the pulleys.
A circular belt is stretched upward between it and another pulley to form a pothole, and a cleaning tool is placed at an appropriate position on the outer circumferential surface of the porous wall sorting tube that is not in contact with the circular belt. This process cleans the holes, opens the clogged holes in the porous wall, and forms new pot holes each time through contact with the belt, so the pot holes never become clogged and always complete pot hole selection and separation. We have successfully completed a grain length sorter that maintains its functionality.

The annular belt of the present invention may be made of any material such as metal, plastic, or general fiber, and the cleaning tool may be any fixed or rotating body such as a brush, blade, or blade, and any cleaning tool may be used such as a rotating body or a roll. In some cases, the holes in the porous wall may be blown with a blower, or the holes in the porous wall may be vacuumed with a suction port.

To explain the present invention using an embodiment diagram, a ring 73, 3 fitted on the outer periphery of a porous wall sorting tube 2 formed by a through hole 1 can be freely rotated on supports 4, 5, 6, 7. A ring type belt 9 is wound around a wheel 8 fitted on the outer periphery of the sorting tube 2 and a drive pulley 18 is pivoted on the prime mover 17, and an annular belt 10 in contact with the outer periphery of the sorting tube 2 is used. A tensioning wheel 11 that forms a large number of pot holes 19 and also tensions the belt 10 upward.
A circular belt 10 is provided between the sorting tube 2 and the tensioning wheel 11.
A cleaning tool 12 such as a rubber roll is installed to clean the through hole 1 by contacting the outer peripheral surface of the sorting tube 2 that is not in contact with the sorting tube 2.
A short particle receiving trough 13 whose upper side is parallel to the sorting tube 2 and whose bottom wall is inclined toward the short particle discharge port 16 is installed horizontally inside the tube, and a raw material supply port is provided on one side of the sorting tube 2. 14, and an outlet 15 for sorted particles is provided on the other side.

Since the present invention is configured as described above, the prime mover 17 is started to rotate the sorting cylinder 2, and the long and short mixed particles are transferred to the raw material supply port 1.
4 into the sorting cylinder 2, and in the process in which the long and short mixed particles flow from the raw material supply port 14 to the sorted particle discharge port 15, the long and short mixed particles are immersed in a large number of pot holes 19 and directed upward. When rotating, long particles quickly fall out from inside the pot hole 19, and short particles are scooped up into the pot hole 19 and fall from the upper part of the sorting cylinder 2 into the short particle receiving trough 13, and then into the short particle discharge port. 16
The long particles are discharged from the machine from the sorting cylinder 2, and the long particles repeatedly roll and glide inside the sorting cylinder 2, and are discharged from the sorted particle outlet 15 to the outside of the machine.

In the sorting tube of the present invention, the cleaning tool 12 cleans the clogged short particles by fitting them into the through holes 1 at positions where the annular belt 10 is not in contact with the outer periphery of the porous wall sorting tube 2. The annular belt 10 connects the through hole 1 of the opened and rotating sorting cylinder 2.
Since a new pot hole 19 is formed each time, clogging of the pot hole 19 does not occur at all. As described above, in the present invention, a through hole in a porous wall is formed into a pot hole by an annular belt that contacts the outer peripheral surface of the lower part of a porous wall sorting tube, and a cleaning tool is installed in contact with the through hole. By doing this, the short particles stuck in the pot holes are allowed to escape and the holes are unclogged, and the holes in the rotating porous wall sorting cylinder are constantly formed into new pot holes by the annular belt.
Although the conventional pot hole sorting method has excellent properties for grain length sorting, it has poor sustainability due to changes such as clogging, and its great power cannot be utilized.It has solved the fatal flaw of the pot hole sorting method, and has an accurate grain length sorting effect. It has a remarkable effect that can be continued for a long time.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a side sectional view, FIG. 2 is a front sectional view, and FIG. 3 is a front sectional view of main parts. 1...Through hole, 2...
Porous wall sorting tube, 3...ring ring, 4...branch, 5...branch, 6...branch, 7...
...Spurt, 8...Ring groove, 9...V
Type belt, 10... Annular belt, 11...
...Changing car, 12...Cleaning tools, 13...
・Short particle receiving trough, 14... Raw material supply port, 15...
...Discharge port for sorting particles, 16...Discharge port for short particles, 17...Electric motor, 18...Driving pulley, 19...Curn hole .

Claims (1)

[Claims] 1. A short particle receiving trough is installed horizontally in parallel inside a porous wall sorting tube that is rotatably supported horizontally or diagonally, and a raw material supply port is provided on one side of the sorting tube, and a feeder for sorted particles is placed on the other side of the sorting tube. The sorting tube is one of the pulleys, and the other pulley is mounted to upwardly tension an annular belt in contact with the lower outer circumferential surface of the sorting tube, and the belt is attached to the outer circumference of the sorting tube. 1. A sorting machine characterized by being equipped with a cleaning tool that cleans the through holes of the porous wall by contacting a portion that does not come into contact with the porous wall.