JPS6331271B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention supplies the washed-out rice that has been removed from the removal section to a swing sorting section through an elevator and a mixed rice tank.
The present invention relates to a hull-hulling vibration sorting machine that sorts brown rice, mixed rice, and paddy.

The crushed rice that has been removed from the removal section is sorted into brown rice, mixed rice, and paddy in the shaking sorting section, and the brown rice is discharged outside, the mixed rice is returned to the shaking separation section, and the paddy is returned to the removal section. In a oscillating huller sorting machine that repeats oscillating sorting and de-hulling operations, an appropriate amount of washed rice is always supplied onto the sorting plate of the oscillating sorting section.
Furthermore, if the ratio of brown rice in the polished rice is not maintained appropriately, uneven sorting will occur, the sorting efficiency will decrease, and furthermore, a poor sorting condition will occur, such as a large amount of paddy mixed into the brown rice. In addition, excess or insufficient rice on the sorting plate and an inappropriate ratio of brown rice occur when the amount of brown rice discharged and the amount of supplied rice do not match, or when the sorting process is about to end. Since this is a case where the amount of paddy supplied decreases, conventionally, during hulling sorting work, the amount of crushed rice supplied to the swing sorting unit is carefully controlled according to the amount of brown rice that is sorted and discharged. It was necessary to make adjustments, making so-called hands-off driving impossible. In addition, near the end of the sorting work, not only the amount of rice removed on the sorting board, but also the
Since it is not possible to maintain an appropriate ratio of brown rice, the sorting efficiency is greatly reduced and often results in poor sorting.

In view of the above-mentioned problems with the conventional husking and shaking sorting machine, the present invention has been developed to provide a system that adjusts the amount of brown rice to be sorted and discharged not only during the hulling and sorting work but also just before the end of the sorting work. , the amount of removed rice supplied onto the sorting plate of the oscillating sorting section is always maintained at an appropriate amount, and the proportion of brown rice in the removed rice is maintained at an appropriate level, so that it is always efficient and good even in a hand-held state. It is an object of the present invention to provide a swing sorting machine for rice hulling that is capable of carrying out thorough sorting.

An embodiment of the present invention will be described below with reference to the drawings.

In the drawing, 1 is a oscillating rice huller sorting machine,
This husking shaker sorter 1 includes a dehulling section 2 equipped with a pair of rotating left and right derolling rollers 3, 3, and a wind sorting housing 4 for wind sorting the grained rice removed in the dehulling section 2.
, a shaking sorting section 5 for sorting the washed rice into brown rice, mixed rice, and paddy by shaking motion, an elevator 6a for supplying dried paddy to the removal section, and a shaking sorting section 5 for the mixed rice. It consists of a double elevator 6 with an elevator 6b for feeding. Departure 2
Directly below, a rice hopper 7 is arranged at a wind separation interval 8 through which the sorting air flows, and the lower part of the rice hopper 7 passes through a receiving gutter 9 to the double elevator 6. The elevator 6b is connected to one elevator 6b.
The upper part of the mixed rice tank 11 is connected via a supply gutter 10 to a mixed rice tank 11 located on one side of the removing section 2 and above the supply side of the oscillating sorter 5. Mixed rice tank 11
At the bottom thereof, on-off valves 13a and 13b are provided which can be opened and closed individually by operating two operating levers 12a and 12b. The swinging sorting section 5 is configured by providing a plurality of sorting plates 15 in a multi-tiered manner supported by a swinging mechanism 14 consisting of four swinging arms 14a and a starting arm 14b. When the on-off valve 13a is opened and the on-off valve 13b is closed, mixed rice is supplied from the mixed rice tank 11 to all of the sorting plates 15, and when the on-off valve 13b is opened and the on-off valve 13a is closed, Mixed rice is supplied intensively only to the top sorting plate 15.

16 is a brown rice conveying cylinder, and this brown rice conveying cylinder 1
6 is connected to a thrower 17 for receiving and conveying the brown rice sorted by the swing sorting section 5, and the tip side of the brown rice conveying cylinder 16 is inserted into the mixed rice tank 11 and opened. Inside the mixed rice tank 11,
An inclined receiving plate 18 is arranged close to and facing the open end of the brown rice transporting cylinder 16, and this receiving plate 18 is used to adjust the outflow speed of the brown rice sent out from the brown rice transporting cylinder 16. . On the other hand, a take-out cylinder 19 is connected downward in the middle of the brown rice transport cylinder 16, and a switching valve 20 is provided at a connection position with the take-out cylinder 19 inside the brown rice transport cylinder 16. When the valve 20 is switched as shown in FIG. 3, the brown rice conveying tube 16 communicates with the take-out tube 19, and when it is switched as shown in FIG. 4, the base side of the brown rice conveying tube 16 is communicated with the take-out tube 19. . And switching valve 2
0 to the switching state shown in Fig. 3, brown rice conveying tube 1
An overflow gap 21 is formed from 6 to the take-out tube 19.

Reference numeral 22 denotes a mixed rice conveying gutter, and this mixed rice conveying gutter 22 transfers the mixed rice sorted in the swing sorting section 5 to the mixed rice tank 1 via the receiving gutter 9 and the elevator 6b.
This constitutes a path for reducing the amount to 1. The rice grains sorted by the swing sorting section 5 are returned to the removal section 2.

In the hulling oscillating sorter configured as described above, the rice supplied to the removing section 2 via the elevator 6a is removed by the removing section 2. The removed rice has chaff and dust removed when passing through the wind selection interval 8, and is then supplied to the mixed rice tank 11 via the washed rice hopper 7, the receiving trough 9 and the elevator 6b.
Therefore, by operating the operating lever 12a, the on-off valve 13
a is opened, and the crushed rice is supplied from the mixed rice tank 11 to the swing sorting section 5. In the oscillating sorting section 5, the washed rice is oscillatingly sorted on a plurality of sorting plates 15, and is sorted into a brown rice layer, a mixed rice layer, and a paddy layer.

Then, the mixed rice is returned to the mixed rice tank 11 via the mixed rice conveying gutter 22, the receiving gutter 9 and the elevator 6b, and the paddy is returned to the removing section 2 via the elevator 6a.

On the other hand, the brown rice is collected in the thrower 17 and returned to the mixed rice tank 11 via the brown rice transport cylinder 16. However, if the switching valve 20 is switched to the state shown in FIG. When the rice is full, a part of the brown rice flows out from the overflow gap 21 into the take-out tube 19 and is discharged outside the machine. However, since this amount of discharge always matches the amount of washed rice supplied to the mixed rice tank 11, the mixed rice supplied from the mixed rice tank 11 onto the plurality of sorting plates 15 of the swinging sorting section 5 is The ratio of brown rice is automatically maintained in a state suitable for sorting. Therefore, even when so-called hands-off operation is performed, the sorting in the swing sorting section 5 can always be kept in an appropriate state. In addition, when the supply of milled rice decreases and the amount of mixed rice decreases near the end of the hulling oscillating sorting work, if the on-off valve 13a is closed and the on-off valve 13b is opened, the mixed rice can be mixed. Rice can be fed intensively only onto the topmost sorting plate 15, and even in this state, an appropriate amount of brown rice is automatically returned from the brown rice conveying cylinder 16, so that rice is not properly distributed on the topmost sorting plate 15. A good and efficient sorting condition can be maintained even near the end of the work.

In short, the present invention provides a hulling shaker that feeds the washed rice that has been removed through the hulling process through an elevator and a mixing rice tank to a swinging sorting section that is made up of a plurality of sorting plates, and sorts it into brown rice, mixed rice, and paddy. In the dynamic sorting machine, a thrower is provided to convey the brown rice discharged from the swing sorting section, and a brown rice conveying cylinder is inserted into the mixed rice tank and opened to return the brown rice from the thrower to the mixed rice tank, and the brown rice is conveyed. A switching valve is installed in the middle of the cylinder to connect the take-out cylinder and form an overflow gap for brown rice at the connecting position, and at the bottom of the mixed rice tank,
An on-off valve was provided to supply the mixed rice onto all the sorting plates of the oscillating sorting section or only a part of it.
Not only during the hulling and sorting work, but also near the end of the sorting work, the amount of washed rice supplied on the sorting plate of the swinging sorting section is always maintained at an appropriate amount according to the amount of brown rice that is sorted and discharged. At the same time, the ratio of brown rice in the pressed rice can be maintained at an appropriate level, and the sorting can always be carried out efficiently and in a good manner even when the rice is left unattended.

[Brief explanation of the drawing]

The drawings show an embodiment of the oscillating grain sorting machine according to the present invention, in which Fig. 1 is a perspective view of the whole, Fig. 2 is a front view with main parts cut away, and Fig. 3 is a diagram showing unpolished rice. A cutaway front view of a part of the mixed rice tank,
FIG. 4 is a partially cutaway front view showing the discharge state of brown rice. 1...Paddy graining swing sorting machine, 2...Departing, 5...
Oscillating sorting unit, 6...Double elevator, 6a...Paddy elevator, 6b...Mixed rice elevator, 11...Mixed rice tank, 13a, 13b...Opening/closing valve, 16...
Brown rice transport tube, 17... Throat, 18... Receiving plate, 1
9...Takeout cylinder, 20...Switching valve, 21...Overflow interval.

Claims (1)

[Claims] 1. In a hulling oscillating sorting machine that feeds the washed rice that has escaped from the hulling section through an elevator and a mixed rice tank to a oscillating sorting section consisting of a plurality of sorting plates and sorts it into brown rice, mixed rice, and paddy, A thrower is provided for conveying the brown rice discharged from the swing sorting section, and a brown rice conveying tube is inserted into the mixed rice tank and opened to supply the brown rice from the thrower back to the mixed rice tank. A switching valve is installed at the connecting position of the take-out cylinder to form an overflow gap for brown rice, and a switching valve is installed at the bottom of the mixed rice tank to transfer the mixed rice onto all or one of the sorting plates of the swinging sorting section. A oscillating sorting machine for rice hulling, characterized by being equipped with an on-off valve for supplying only the rice grains.