JPS6121766A - Crushed particle sorter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a grain sorter for sorting and removing crushed grains from grains, especially elongated grains such as rice grains, and the present invention relates to a grain sorting machine for sorting and removing crushed grains from grains, particularly elongated grains such as rice grains. The objective is to sort out complete grains) and crushed grains (crushed grains here refer to grains with a length of about 2/3 or less of the size of regular grains).

What is shown in FIG. 4 of the prior art drawings is a sorting tube of a conventionally known rotary sorter, and grains having a grain thickness smaller than the inside of the mouths of the many slits 21 bored on the circumferential surface of the sorting tube, such as immature grains, etc. Even if the particles are crushed, if the particle thickness is larger than the slit, extraction is impossible. .

What is shown in Fig. 5 is the same conventionally known sorting machine, in which the crushed particles are immersed in indents 22 formed in a number of recesses on the inner circumferential surface of the rotating sorting cylinder, lifted upwards, and collected in a receiving gutter 23. Although it is possible to separate and sort crushed grains, there is a drawback that during operation, rice bran etc. adhere to the indent and the indent becomes shallow, causing a so-called clogging condition and reducing the sorting accuracy. In addition, crushed grains are extracted while the raw material moves from the supply side to the discharge side of the sorter, and on the discharge side where the crushed grains have been extracted and reduced, the granulation is also indented 2.
There is a tendency for the particles to immerse in the water pipe 2 and be collected in the receiving gutter 23, making it impossible to expect high-precision sorting. Similarly, in the case of a batch type test sorter, there is a drawback that as the number of crushed grains decreases as the sorting time passes, even the crushed grains are picked up into the receiving trough 23.

Therefore, the present applicant has proposed [by tilting an endless sorting belt having a large number of pot holes and moving it upwardly, the short particles are immersed in the pot holes and discharged from the higher side end, and the long particles are Regarding a granule sorting device that discharges particles from the lower end, an application has already been filed (Japanese Patent Application No. 109216/1982), but this device is capable of sorting granules into sized particles and crushed granules, but cannot separate crushed granules. Furthermore, it was not possible to classify the particles into large crushed particles and small crushed particles.

Purpose of the Invention In view of the above, the present invention provides a crushed granule that does not cause clogging in the sorting section, does not contain sized particles in the extracted crushed granules, and is capable of roughly separating crushed granules into large crushed particles and small crushed particles. The purpose is to provide a sorting machine.

Structure and operation of the invention In order to achieve the above object, the present invention rotates the upper surface of an endless belt having a large number of circular holes so as to tilt upward,
In a sorting machine, the endless belt is provided with a large crushing granule receiving trough at the territorial end and a grading granule receiving trough at the inclined end thereof, and a supply hopper is provided on the upper surface of the endless belt, and a rotating part is provided at the upper side of the sloping part of the endless belt. A brush body is provided, and the bottom plate is tilted so that the inclined end of the bottom plate that closes the circular hole on the upper surface of the endless belt faces a small crushed grain receiving gutter provided between the supply hopper and the large crushed grain receiving gutter. It has a configuration characterized by:

With this configuration, when the elongated raw material is supplied from the supply hopper to the upper surface of the endless belt, the sized particles in the raw material are transferred over the surface of the endless belt and collected in the sized sizing receiving trough, and the finely crushed particles are collected on the sized receiving trough. The large crushed particles are transferred to the inclined end of the endless belt and collected in the small crushed particle receiving trough. The sorting process of collecting the water in the receiving gutter can be continued without clogging.

The present invention will be described in detail based on FIGS. 1 to 3 of the embodiment drawings.

In the figure, reference numeral 1 denotes an endless belt made of urethane rubber or the like, which is stretched at an appropriate inclination between a drive roll 3 located on an upper slope and a floating roll 4 located on a lower slope. A large number of elliptical holes 2 are provided on one side of the endless belt, and the diameter of the holes is approximately 1/2 of the grain length of a rice grain. Therefore, an endless belt having elliptical holes should be appropriately selected and attached depending on the type of grains or rice grains to be sorted. Reference numeral 3 denotes a drive roll that rotates and moves the upper surface of the endless belt 1 in an upwardly inclined direction, and is interlocked with a motor 5 and supported on a machine frame 8 by a drive shaft 6. Reference numeral 4 denotes a floating roll, which is supported by a machine frame 8 by a floating shaft 7. 5 is a motor, 6 is a drive shaft, 7 is an idler shaft, and 8 is a machine frame that supports the drive shaft 6 and the idler shaft 7.

Reference numeral 9 denotes a small crushed grain receiving trough, through which small crushed grains having a length of approximately 1/2 or less of the grain length of the regular grain, which have entered the oval holes 2 formed in large numbers in the endless belt 1, fall from the inclined upper end of the bottom plate 11. The screw conveyor 10 collects the waste and discharges it to the outside of the machine. 9A is a bent portion in the receiving gutter 9.

Reference numeral 11 denotes a non-porous bottom plate, which is fixed in contact with the back surface of the endless belt 1 so that the back surface of the endless belt 1 can slide thereon, and the inclined end reaches above the bent portion 9A of the small crushed grain receiving trough 9. It has been extended until now.

Reference numeral 12 denotes a raw material supply hopper, which is suspended so that the discharge port 13 at the bottom of the hopper faces approximately above the middle stroke portion of the upper surface of the endless belt 1. A valve 14 is provided at the discharge port 13, and a vibrator 15 is fixed to the valve 14 as a raw material supply mechanism. 13 is a discharge port, 14 is a valve, and 15 is a vibrator.

Reference numeral 16 denotes a brush body, which is provided with a gap close enough that the tip of the brush does not come into contact with the surface of the endless belt and is adjustable. Rotate (+
(The moving mechanism is not shown).

Reference numeral 18 denotes a grain receiving trough provided at the lower end of the endless belt 1, and numeral 19 represents a coarse granule receiving trough provided at the upper end of the endless belt 1.

Next, the operation of the above embodiment will be described.

The raw material, for example polished rice, placed in the supply hopper 12 is supplied onto the endless belt 1 by the slight vibrations of a vibrator 15 fixed to the valve 14 of the discharge port 13, so the amplitude of the vibrator is increased or decreased to supply the raw material. The raw material supply is stopped by adjusting the amount and stopping the operation of the vibrator.

In the polished rice supplied onto the endless belt 1, the sized grains are not transferred upward along the inclination with the endless belt, but roll down the incline due to their own rolling properties. and,
A large number of crushed grains having a length of 1/2 or less of the grain length of the sized grain are penetrated into the oval holes 2 formed on the surface of the endless belt 1, and are transported upward in an inclined direction. In other words, since the bottom plate 11 provided in contact with the back surface of the endless belt 1 closes the circular hole 2 from below,
The crushed particles that have entered the circular hole 2 do not immediately fall downward, but are transferred to the endless belt 1, pass the inclined end of the bottom plate 11, fall naturally and are collected in the crushed particle receiving gutter 9, and are transferred to the screw conveyor. At 10, it is transported out of the aircraft.

In short, even if a part of the grain size is submerged in the circular hole 2, the circular hole 2 is shallow and the diameter of the circular hole 2 is only about 1/2 of the grain length of the grain size. On the other hand, the finely crushed grains are immersed in the circular hole 2 and transported upwardly on the slope, and are collected from the sloped end of the bottom plate 11. It falls into the gutter and is collected.

Incidentally, although the grain length of the coarsely crushed grains is larger than that of the finely crushed grains and smaller than that of the regular grains, a part of the grains have immersed into the circular hole 2 and become caught in the circular hole 2, Therefore, the transfer to the downward direction of the slope is prevented, and the object is transferred upward to the slope by the endless belt. However, since it is locked in the circular hole 2, even if it passes the inclined upper end of the bottom plate 11, it does not fall into the small crushed grain receiving gutter, but is transferred as it is to the inclined upper end of the endless belt, and is transferred to the large crushed grain receiving gutter 19. will be collected in

In this way, the large crushed grains are transferred upward on the slope while they are about to sink into the circular hole 2, so they tend to be blocked by regular grains, other large crushed grains, or small crushed grains one after another, resulting in a lump state. The brush body 16 has the function of breaking up such agglomerated particles and scraping back the sized grains in a downward direction. Further, the brush body 17 may be provided auxiliary on the downstream side of the brush body 16.

The operation of this embodiment is as described above, but in order to efficiently sort rice grains according to their type and properties, an angle adjustment mechanism 20 that can change the inclination angle of the endless belt is attached, and the rotation of the endless belt is In some cases, a means for changing the speed (for example, controlling the rotation speed of the motor with an inverter) is taken.

When the angle adjustment mechanism is provided, the bottom plate 11 is supported by a suitable fixing means on the machine frame or the like so that the angle of inclination of the bottom plate 11 can be changed together with the endless belt 1.

In addition, if a cleaning body 21 is provided to clean the back surface of the endless belt 1, foreign matter will not be caught between the belt 1 and the bottom plate 11, and a close state will be maintained to prevent the leakage of crushed particles. can be prevented.

Effects of the Invention As described above, the present invention has a plurality of circular holes in an endless belt, and rotates the upper surface of the belt in an upwardly inclined direction.
This is because a grain size receiving gutter is provided at the lower end of the belt and a large grain receiving gutter is provided at the upper end of the belt, and the inclined upper end of the bottom plate that closes the circular hole on the upper side of the belt faces the fine grain receiving gutter. The raw material can be separated into sized grains, finely crushed grains, and large crushed grains, and since a bottom plate is provided on the back side of the belt in the raw material supply section, grains can be prevented from falling vertically through the circular hole when the raw material is supplied. Since the small crushed grains are reliably collected in the small crushed grain receiving trough, it is only necessary to form the fine crushed grain receiving trough small.Also, since the endless belt has a bottomless circular hole, there is no possibility of clogging with rice bran etc. There is no.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view showing one embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is an enlarged perspective view of the same partially, and FIG. 4 is a conventional sorting cylinder having a slit. Partially cutaway view, No. 5
The figure is a schematic cross-sectional view of a sorting cylinder having the same indentation. 1 is an endless belt, 2 is a circular hole, 3 is a drive roll, 4 is an idler roll, 9 is a small crushing granule receiving trough, 11 is a bottom plate, 12 is a supply hopper, 16 is a brush body, 18 is a grading granule receiving trough, 19 is a It is a large crushed grain receiving trough.

Claims (1)

[Claims] A sorting machine in which the upper surface of an endless belt having a large number of circular holes is rotated in an upwardly sloping direction, and the endless belt is provided with a large crushing granule receiving trough at the slanted upper end and a grading granule receiving trough at the lower slanted end. A supply hopper is provided on the upper surface of the endless belt, and a rotating brush body is provided on the inclined upper side of the endless belt, and
The endless belt is characterized in that the inclined upper end of the bottom plate that closes the circular hole on the upper surface of the endless belt from the back side is tilted so as to face the small crushed grain receiving gutter provided between the supply hopper and the large crushed grain receiving gutter. Crushed grain sorting machine.