JPS61227882A - Grain 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) The present invention relates to a grain sorting device that sorts grains that have been subjected to shedding action into brown rice and grains other than brown rice.

(Prior Art) As disclosed in Japanese Unexamined Patent Publication No. 56-105761, there is a structure in which grains discharged from a sorting plate are separately collected by moving a boundary plate.

(Problem to be Solved by the Invention) However, when comparing the amount of reflected light between the paddy of non-glutinous rice and brown rice, the amount of reflected light in the paddy is greater than in brown rice, but in glutinous rice, the amount of reflected light is less than in brown rice. Therefore, in the above configuration, when the grains subjected to sorting change, for example, from non-glutinous rice to glutinous rice and the brown rice layer expands, the partition plate moves to the brown rice side, so the amount of recovered brown rice is reduced. This may cause a decrease in work efficiency.

(Means for Solving the Problems) The present invention aims to provide a grain sorting device that does not reduce work efficiency and can also prevent foreign grains from being mixed into brown rice. We took technical measures such as:

That is, a discrimination sensor (3) capable of determining the degree of contamination of different types of grains in the grains on the sorting plate (1) or the grains discharged from the sorting plate (11), and A partition plate 01 capable of sorting multiple types of grains, a partition plate moving means 0υ capable of adjusting the movement of the partition plate 01, and a function of reversing the forward or reverse rotation output to the partition plate moving means 0υ. The structure of the grain sorting bag 1d is provided with a switching means (c) that allows for switching.

(Function and Effect) Based on the detection result of the discrimination sensor (3), the partition plate moving means (l) is driven to adjust the movement of the partition j5Hill, so it is possible to prevent paddy from being mixed into the brown rice collection side. - Possible. Furthermore, even if the grains to be sorted change from non-glutinous rice to glutinous rice, by reversing the forward or reverse output to the partition plate moving means 0υ using the switching means (c), the partition plate (10 )
Since the movement of grains does not work in the opposite direction to that in the case of non-glutinous rice, it is possible to prevent paddy from being mixed into brown rice, and the amount of brown rice recovered does not decrease, making it possible to prevent a decrease in work efficiency.

(Example) Hereinafter, an example of the present invention will be specifically described based on the drawings.

First, to explain its configuration, the swing order classification device (4
) has a rectangular sorting plate (1) pivotally attached to a pair of upper and lower links (6) and (7) rotatably attached to the machine frame (5), and swings via a swing arm (8). By rotating the cam (9), the separate plate (1) is configured to swing vertically and diagonally (in the W direction in the figure).

The sorting plate (1) forms a rough surface (11) by forming a large number of small irregularities on its two sides, and by swinging in the W direction shown in the figure, the supplied grains are sorted by specific gravity and classified into brown rice areas. It is structured to be separated into (a), mixed rice area (c), and paddy rice area (0). (2) is a grain discharge port for discharging the grains transferred in the sorting jF2: (11),
) is formed on the swinging side.

(10) is a brown rice partition plate installed between the brown rice area (A) and the mixed rice area (C), and 01) is a paddy partition plate installed between the mixed rice area (C) and the paddy area (B), The head is inserted into the grain outlet (2) and the brown rice outlet (1B/mixed rice outlet 0) and the paddy outlet (14) are inserted.
) is formed.

The brown rice partition plate 1'10 is connected to a threaded portion (
16a) is configured to be movable and adjustable to the brown rice side and the mixed rice side.

The discrimination sensor (3) consists of a light source (3a) and a light receiving element (31)) that receives the light source, and is located above the discrimination sensor σ3) that detects the condition of the brown rice area and the mixed rice area (c). The sensor (A) is attached to the machine frame Q71. In addition, the discrimination sensor (
A) is provided in plural pieces (A1), (A2), and (A3) at appropriate intervals between the brown rice partition plate (10) and the paddy partition plate (11).

To explain the control circuit of FIG. 1, (to) is an I-V converter that converts the detection current of the discrimination sensor (Ai) (A2) (A!I) (average) into a voltage, 0 is an amplifier, (A) is a comparator, eη is a judgment output device, (A) is a clock,
(C) is a launch circuit, (C) (C) is an analog switch, (C) is a differential amplifier, (C) is a potentiometer, (C) is a forward/reverse judgment device (01) and 0 is a relay It is.

The switching means (to) is provided between each output terminal of the forward/reverse determination device (to) and each terminal of the base of the transistor that operates the relay 01)0→, and is connected to the changeover switch (to). , is provided with an inverting circuit (to) in which the output to relay e'0.02 is inverted by this changeover switch (b).

Note that the switching means (to) may be provided, for example, on the comparator head, and is not limited to this embodiment.

Next, its effect will be explained. First, when an electric motor (not shown) is driven to drive each rotating part of the aircraft, the swing cam (9) rotates together with the swing shaft and moves the swing arm (8) up and down. A related pair of links (6
) (7), the sorting plate (1) swings in the W direction shown in FIG.

In this state, when a mixed rice of non-glutinous hulled rice and brown rice is supplied from the supply section, the grain group is separated from the rough surface (1) of the oscillating sorting plate (1).
Under the specific gravity sorting effect of a), as it moves towards the grain outlet (2) side, the brown rice area (a), the mixed rice area (c), and the paddy area (
0). Then, among the grains that have reached the grain discharge port (2), the paddy is removed by the paddy partition plate 0]) through the paddy removal port Q4.
), for mixed rice there is a paddy partition plate 01) and a brown rice partition plate (10).
The brown rice is placed in the mixed rice outlet 03 by the brown rice partition plate (1
0), the brown rice is collected into the brown rice outlet 0 and proceeds to the next work process.

During this sorting work, a discrimination sensor (B) is installed above the brown rice area (A), and discrimination sensors (A1), (A2), and (A5) are installed above the mixed rice area (B). After the current is measured and converted into voltage by the IV converter 08), it is amplified to a constant level by the amplifier O1. and,
After comparing amplifiers 1-■5 of the discrimination sensor σ3) on the brown rice side with other amplification weights ■6 to ■8 using a comparator and outputting a judgment output, this judgment output is launched by a clock (A). Select the judgment output with the highest priority, and use this judgment output to select one of the analog switches C
(') Set N j and take out the preset setting voltage j ten. Also, use the potentiometer (c) to take out the voltage indicating the position of the brown rice partition plate (10) as a comparison voltage, and use the differential amplifier (a) to take the difference between the set voltage and the comparison voltage and amplify it to determine whether it is forward or reverse. As determined by the device (1), the forward/reverse motor (g) is driven via the relay 01) 3e to stop the brown rice and also stop the movement of the brown rice partition plate (10).

In such a sorting operation, when the grains to be sorted change from non-glutinous rice to glutinous rice, the changeover switch (2) of the switching means (to) is switched from the non-glutinous rice side (X) to the glutinous rice side (Y). Then, the output terminal of one forward/reversal determining device 翰 is connected to the bases of the transistors 1 to 1 on the relay I34 side, and the output terminal of the other forward/reversing determining device (to) is connected to the base of the transistor on the relay 01) side. The forward rotation and reverse rotation outputs of the forward/reverse rotation determination device (to) are reversed.

However, in the case of glutinous rice, the amount of reflected light is smaller than in brown rice, as opposed to non-glutinous rice, so the partition plate (10) performs the same function as in the case of non-glutinous rice.

Therefore, regardless of whether the grains to be sorted are non-glutinous rice or glutinous rice, it is possible to prevent paddy from being mixed into the brown rice to be collected, and to improve the efficiency of the sorting operation and improve the adaptability of varieties.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a control circuit diagram, Fig. 2 is a partially cutaway front view of the swing sorting device, Fig. 6 is a plan view thereof, and Fig. 4 is a front view of the swing sorting device. The figure is a power transmission configuration diagram of the oscillating sorting plate, and FIG. 5 is an enlarged sectional view of the discrimination sensor. (1) is a selection 5111 board, (3) is a discrimination sensor, 0 (1 is a partition plate, (10) is a partition plate moving means, and (c) is a switching means.

Claims (1)

[Claims] A discrimination sensor (3) capable of determining the degree of contamination of different types of grains in the grains on the sorting plate (1) or the grains discharged from the sorting plate (1), and a plurality of grains discharged from the sorting plate (1). A partition plate (10) capable of separating seed grains and the partition plate (10)
A grain sorting device comprising: a partition plate moving means (15) whose movement can be adjusted; and a switching means (33) capable of reversing forward or reverse rotation output to the partition plate moving means (15).