JPS5864138A - Apparatus for automatically controlling hull supply amount in hulling sorting machine - 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] In a rice hulling sorting machine equipped with a swing type sorting plate,
If the amount of mixed grains of paddy and brown rice supplied to the sorting plate is too large, the sorting plate will not be able to correctly sort the paddy and brown rice.
On the other hand, if the amount of mixed grains supplied is too small, the amount of brown rice removed from the sorting plate will cause a defect that the destruction efficiency is poor. There is a need to.

An object of the present invention is to detect the flow rate of paddy in the path leading from the hulling roll to the sorting plate, and thereby automatically adjust the amount of paddy supplied to the sorting plate to the optimum amount.

The present invention will be explained based on embodiments shown in the drawings.
, B indicate a known hulling part and a sorting part, respectively. 1 is a pair of hulling rolls, and an on-off valve 3 is provided at the rice supply port ja at the bottom of a holler A2 connected above the rolls. 4 is a support shaft of the on-off valve 3, 5 is a feed roll, and 6 is a fan-shaped plate integrally connected to the on-off valve 3, and a motor M capable of forward and reverse rotation is mounted on the unevenness formed on the arc-shaped outer periphery of the fan-shaped plate. Engage the vinyl shaft attached to the shaft.

8 is an exit provided at the upper end of the elevator (not shown);
The lower end of the elevator is connected to the bottom of the winnowing chamber below the hulling roll 1. The starting end of the supply gutter 9 is visible below the outlet 8,
A discharge port 9m is opened at the low inclined end and connected to the lower sorting plate 10. 10a and lOb are partition plates attached to the side walls of the sorting plate lO.

Then, the opening/closing valve 3 is opened and the paddy supplied from the hole A2 is dehulled by the friction of the hole A2. The chaff of the pounded paddy is wind-selected and removed from the machine, and the mixed grains of paddy and brown rice are supplied to a sorting plate 10 through a feeder 9.

The sorting plate 10 swings diagonally up and down to sort the mixed grains,
The brown rice is taken out from above the partition plate 10b, and the paddy to be discharged from below the partition plate 10 is returned to the hopper 2 via an elevator (not shown), and the paddy to be discharged from between the partition plates IQa and 10b. The mixed grains of brown rice are sent to the feeder feeder 9 together with the mixed grains discharged from the huller.

According to the present invention, the flow rate senna S is deposited on the feeder 9 as shown in FIG.

FIG. 3(a) shows an example in which three piezoelectric transducers S1 that are sensitive to the pressure of the mixed grains are installed as sensors S in a vertical line on the wall of the feeder 90, and the mixed grains in the supply gutter 9 (due to pressure)
The lower element 81) closes the IN circuit and detects the flow rate.

FIG. 2B shows an embodiment in which a large number of photoelectric conversion elements S2 as sensors S that receive light from a lamp 10 provided on the opposite side wall are installed in a vertical line on the side 11 of the supply gutter 9. The mixed particles in 9 block the light from the lamp 10, and the lower element S2 sequentially closes the circuit to detect the flow rate.

Furthermore, in the embodiment shown in FIG.
The tilting rotating plate 11 is pivotally supported, and its support shaft 12
In addition, a front angle detection element S3 like a differential intensifier is used as a sensor S.
is attached, and the mixed grains in the supply gutter 9 cause the rotating plate
1 rotates, and element S3 detects the flow rate from the rotation angle.

Then, the flow rate sensor S is connected to the comparator 14 along with the flow rate designation dial ratio, and the arithmetic circuit 15 is connected to the output side of the comparator 14. The motor M is connected via the control circuit 16 and the control circuit 16 in this order.

Then, in advance, the optimal flow rate of paddy is specified by the designation dial 13, taking into consideration the variety of paddy, moisture content, temperature during work, flt, etc., and the reference voltage value output by dial B and the actual supply are determined. The comparator 14 compares the detected voltage value of the flow rate sensor S that detects the flow rate of paddy flowing through the gutter 9, and if the flow rate of paddy is too small, the motor M is rotated in the forward direction to close the on-off valve 3.
If the flow rate of paddy is too large, the motor M is reversely operated and the on-off valve 3 is throttled so that the optimum flow rate of paddy flows through the supply gutter 9.

In this way, in the present invention, since the flow rate senna S automatically opens and closes the on-off valve 3, the optimal amount of paddy commensurate with the sorting capacity of the sorting plate 100 is always supplied to the sorting plate 10, and the paddy can be efficiently harvested. This produces the effect that brown rice can be sorted.

[Brief explanation of the drawing]

Fig. 1 is a system diagram of a rice hulling sorter embodying the present invention, Fig. 2 is a front view of its on-off valve O, and Fig. 3 (a), (b), and (c) are main parts of different embodiments of the present invention. , (a) and θ (b)
is a cross-sectional view of the supply gutter, and (c) is a vertical cross-sectional view of the supply shaft. FIG. 4 is a boot diagram of the present invention. S Mori flow rate sensor, M is the hulling section, B is the sorting section, 2 is the hopper, 9 is the supply gutter, 10 is the sorting plate, 13 is the flow rate specification dial, 14 is the comparator, `` is the calculation circuit, 16 company control circuit , M company motor.

Claims (1)

[Claims] In a rice hulling sorter equipped with an oscillating sorting plate, an on-off valve is provided at the rice supply port that opens at the bottom of the rice bowl of the rice huller, and a flow rate sensor is attached to the supply gutter connected above the first sorting plate. This is an automatic paddy supply amount adjustment device that connects the output of the flow rate designation dial to a comparator, and the output side of the comparator is connected to a motor that opens and closes an on-off valve via an arithmetic circuit and a control circuit.