JPH0233907Y2 - - Google Patents

Description

[Detailed description of the invention] This invention includes, for example, a huller that separates paddy into brown rice and rice husks, a swinging sorter that separates the brown rice from the paddy contained therein, and a grading machine that separates the brown rice into granules. Equipped with a grain separator that separates immature grains, a product tank that stores the grains, and a weighing machine that takes out the grains in fixed amounts and packs them into bags, the system continuously processes dried paddy into brown rice. Regarding the finishing plant, it is equipped with an immature grain sensor that detects the mixed amount of immature grains included in the sorted grains from the grain sorter, and a grain selection amount adjustment member that adjusts the supply amount of the grain-selected brown rice. It is configured to be able to increase or decrease the supply amount of grain-selected brown rice based on the output of the sensor, and the supply amount of grain-selected brown rice can be adjusted while keeping the amount of immature grains contained in the grain-selected grains below a certain level. and prevent the quality of the granulated product from deteriorating,
It is an object of the present invention to provide a grain sorting device that can improve the efficiency of grain sorting work.

Embodiments of the present invention will be described in detail below based on the drawings. Figure 1 is a perspective view of the entire plant, Figure 2 is a side view of the same, and Figure 3 is an explanatory diagram of the same work system. A paddy elevator feeds the paddy to the paddy hopper 3, 4 is a huller that separates the paddy from the hopper 3 into brown rice and rice husks, 5 is a wind sorter that discharges the rice husks from the huller 4, and 6 is a a mixed rice elevator for feeding brown rice and paddy from the huller 4 to a mixed rice tank 7;
8 is a swinging sorter that separates the mixed rice from the tank 7 into paddy, mixed rice, and brown rice; 9 is a receiving gutter for taking out the paddy, mixed rice, and brown rice, respectively; and 10 is a receiving gutter for removing the brown rice from the receiving gutter 9. Brown rice elevators 12, 13, and 14 feed the brown rice to the brown rice tank 1; first to third vibrating conveyors 12, 13, and 14 carry out the paddy, mixed rice, and brown rice from the receiving trough 9 to the elevators 2, 6, and 10; A grain sorter 16 separates the brown rice from the tank 11 into sorted grains and immature grains; 16 is a good brown rice elevator that feeds the sorted grains from the grain sorter 15 to the product tank 17; and 18 is a grain sorter from the tank 17. This is a weighing machine that bags grains in fixed amounts, and is configured to continuously process dried paddy into brown rice and pack it into bags.

There is also a sample grain separator 19 that takes out a part of the grains being transported from the grain sorter 15 to the quality brown rice elevator 16 and separates immature grains contained therein, and a sample grain separator 19 that separates the immature grains contained therein. An immature grain sensor 20 that measures the amount and detects the mixed amount of immature grains included in the sorted grains, and a shutter that is installed at the outlet of the brown rice tank 11 and adjusts the amount of grain sorted brown rice supplied to the grain sorter 15. 21, and a grain selection motor 22 which is a grain selection adjustment member that opens and closes the shutter 21 in a stepless manner.

4 to 6 are explanatory diagrams of the sample particle sorter 19, which includes an input port 23 for supplying the sorted particles from the particle selector 15, and a sample supply hopper whose upper end side is open to the input port 23. 24, a grading outlet 25 that communicates with the quality brown rice elevator 16, and an overflow passage 26 that leads out the grading that overflows from the upper end of the hopper 24 to the outlet 25. It is equipped with a sorting cylinder 28 formed of a perforated plate 27 and tilted and supported in the axial direction, and a sorting motor 29 that rotates the sorting cylinder 28. While facing the inside of the sloping upper end of the cylinder 28, the side end plate 32 provided with the discharge troughs 31, 31 is fixed to the slanted lower end of the sorting cylinder 28 to close this part. In addition, a clogging prevention plate 33 is slidably brought into contact with the upper outer peripheral surface of the sorting cylinder 28, and
An immature grain chute 34 takes out immature grains (thin-walled grains) falling from the perforated plate 27, and a sorted grain (thick-walled grains) taken out from the inclined lower end side of the sorting tube 28 via a discharge gutter 31 is sent to the outlet 25. A discharge gutter 3 is provided along the outer periphery of the sorting cylinder 28.
1 and 31 are bent and extended approximately 180 degrees, one end of the discharge gutter 31 is opened to the outlet 35 side, and the other end of the discharge gutter 31 is communicated with the inside of the sorting tube 28 through the discharge port 36, Then, a guide plate 37 for regulating the inflow of the sorted particles into the discharge port 36 is attached, and as shown in FIG.
The sorted particles inside the sorting cylinder 28 are taken out from the discharge port 36 to the discharge gutter 31 through the discharge port 36.

FIG. 7 is a grain selection control circuit diagram of the grain sorter 15, in which the immature grain sensor 20 for measuring the amount of immature grains taken out from the immature grain chute 34 of the sample grain sorter 19 is connected to the reference value setting device 38. It is connected to the provided grain selection adjustment circuit 39 via an amplifier 40, and the outputs of the sensor 20 and the setting device 38 are compared to detect an increase or decrease in immature grains by the circuit 39. A grain selection amount increasing and decreasing circuit 4 is connected to a grain selection motor 22 that opens and closes a shutter 21.
1, 42 to connect the adjustment circuit 39,
When the number of immature grains decreases, through the increase circuit 41,
Further, when the number of immature grains increases, the motor 22 is controlled in forward and reverse directions via the reduction circuit 42, and the amount of immature grains detected by the sensor 20 is set at 38.
The shutter 21 is opened and closed to increase or decrease the amount of brown rice flowing down the tank 11 so that the amount of brown rice supplied to the grain sorter 15 is adjusted so as to substantially match the reference value.

8 and 9 show a specific example of the immature grain sensor 20, which is equipped with a sensing hopper 43 that faces the exit of the immature grain chute 34 of the sample grain sorter 19. Attaching the flow rate sensing valve 45, one end of the flow rate sensing valve 45 is supported on a support shaft 46, and the rotation of the support shaft 46 swings the valve 45 up and down to sense the flow rate at the outlet 44 of the hopper 43. The support shaft 46 is extended in an L shape, and a weight 4 is attached to the tip of the support shaft 46.
7 is fixed, the weight of the weight 47 lifts and closes the valve 45, and when the immature grains flowing into the hopper 43 push down the valve 45, a potentiometer connected to the support shaft 46 The valve 4 is rotated by the yometer 48 based on the rotation of the support shaft 46.
5 is detected, and the mixed amount of immature grains contained in the sorted grains taken out from the grain sorter 15 is measured.

FIG. 10 shows a modification of the immature grain sensor 20, which is equipped with a sensing chute 49 whose upper end faces the outlet of the immature grain chute 34 of the sample grain sorter 19, and in the middle of the immature grain flowing down the chute 49. A photoconductive sensor 50 is attached to the part, and the immature grains falling in the chute 49 are irradiated with light and the reflected light is received, the amount of immature grains per unit time is detected, and the immature grains are taken out from the grain sorter 15. The apparatus is configured to measure the mixed amount of immature grains contained in the sorted grains.

The present invention is constructed as described above, and when paddy dried using a dryer or the like is put into the paddy tank 1, the paddy is sent to the paddy hopper 3 via the paddy elevator 2, and the paddy is removed. A sliding machine 4 separates the mixed rice of brown rice and paddy into rice husks and rice husks, and a winnowing machine 5 discharges the rice husks outside the machine. The mixed rice of brown rice and paddy taken out from the huller 4 is transferred to the second vibrating conveyor 1.
3 and the mixed rice elevator 6 to the mixed rice tank 7, and the shaking sorter 8 separates the rice into paddy, mixed rice, and brown rice, and the paddy, mixed rice, and brown rice are sent through the receiving trough 9. The paddy is returned to the paddy elevator 2 by the first vibrating conveyor 12, and the mixed rice is returned to the mixed rice elevator 6 by the second vibrating conveyor 13. The brown rice taken out from the sorter 8 is fed to the brown rice tank 11 via the third vibrating conveyor 14 and the brown rice elevator 10, and is separated into immature grains (thin-walled grains) and sized grains (thick-walled grains) by the grain sorter 15. At the same time, the sized grains are sent to a product tank 17 by a good brown rice lifter 16, and then packed into bags in fixed quantities by a weighing machine 18.

In addition, a part of the sorted grains on the way from the grain sorter 15 to the weighing machine 18 is taken out to the sample grain sorter 19, the immature grains contained in the sorted grains are separated, and the amount of immature grains is determined by the amount of unripe grains. It is detected by the grain sensor 20, and the amount detected by the sensor 20 increases or decreases in proportion to the amount of brown rice supplied to the grain sorter 15. Then, the output of the sensor 20 and the output of the reference value setter 38 are compared by a grain selection amount adjustment circuit 39, and based on the grain selection amount increase and decrease outputs generated from the circuit 39, a grain selection amount increase and decrease circuit 41, Grain selection motor 2 via 42
2 in the forward and reverse directions, and the shutter 2 of the brown rice tank 11 is
1 to increase or decrease the amount of grain-selected brown rice supplied to the grain sorter 15 by controlling the opening and closing of each circuit 3. When the amount of immature grains detected by the sensor 20 is below the setting
9, 41 and the motor 22 to increase the amount of brown rice supplied to the grain sorter 15 and improve the efficiency of grain sorting work. When the amount exceeds the set value, the shutter 21 is closed via each circuit 39, 42 and the motor 22 to reduce the amount of brown rice supplied to the grain sorter 15, thereby improving the efficiency of grain sorting work.

As is clear from the above embodiments, the present invention is equipped with a grain sorter 15 that separates brown rice after hulling and sorting into sorted grains and immature grains and takes them out, and the amount of mixed immature grains included in the sorted grains has been reduced. It is equipped with an immature grain sensor 20 that detects unripe grains, and a grain selection amount adjustment member such as a grain selection motor 22 that adjusts the supply amount of grain-selected brown rice, and adjusts the supply amount of grain-selected brown rice based on the output of the immature grain sensor 20. This system is configured to be able to increase or decrease the amount of grains, and it is possible to increase the supply amount of selected brown rice while keeping the amount of immature grains contained in the selected grains below a certain level, thereby improving the quality of the grains that are the product. It is possible to prevent a decrease in grain selection, improve the efficiency of grain selection work, and achieve remarkable effects such as a simple operation and a drastic reduction in grain selection losses.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the entire plant showing an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is an explanatory diagram of the same work system, Fig. 4 is a cross-sectional side view of the sample grain sorter, and Fig. 4 is a side view of the same. Figures 5 and 6 are enlarged partial views of the previous figure, Figure 7
8 is a cross-sectional side view of the immature grain sensor, FIG. 9 is a cross-sectional plan view thereof, and FIG. 10 is a cross-sectional side view showing a modification of the immature grain sensor. 15... grain sorter, 20... immature grain sensor, 22
...Grain selection motor (grain selection adjustment member).

Claims (1)

[Scope of utility model registration request] Equipped with a grain sorter that separates brown rice after hulling and sorting into sorted grains and immature grains, and an immature grain sensor that detects the mixed amount of immature grains included in the sorted grains, and a supply of grain-sorted brown rice. 1. A grain sorting device comprising a grain selection amount adjusting member for adjusting the amount, and configured to be able to increase or decrease the supply amount of brown rice to be grain-selected based on the output of an immature grain sensor.