JPH0126753B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic feed control device for a paddy coarse sorter.

In other words, in a rough sorting machine that has a sorting plate such as a perforated iron plate and a swinging sorting body with a supply tank visible above one end of the feed end, the rough sorted rice is sorted by flowing over the sorting plate. While reliably detecting the flow of materials at the end of the sorting plate, the amount of supply from the supply tank is adjusted according to the detection, and the amount of sorting is always adjusted to the appropriate amount to improve sorting performance and sort efficiently. It is provided so that you can do the following.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a cross-sectional view of a rough rice sorter, where A is a sorting body, above which a sorting plate a made of perforated iron plate is installed obliquely, and below the sorting plate a, a parallel flow stream is installed. A grain plate 5 is stretched, a hopper 6 is integrally formed above one end of the sorting plate a which is the supply end side a, and a discharge port 7 is formed downstream from the terminal end of the sorting plate a.
A downward discharge port 8 is formed on the terminal end side of the floating grain board 5.

In addition, the sorting body A is tilted and supported by each of the swinging supports 9 below, and a part of the swinging supports 9 is connected to a swinging rod 12 that is swung by an eccentric wheel 11 that is rotated by a motor 10. The sorting body A is installed so as to be able to swing in an inclined direction, and a discharge gutter 14 equipped with a spiral conveyor 13 is installed horizontally below the discharge port 8, and a machine frame 15 is installed above the hopper 6. A lower opening 2 of the supply tank 1 supported by the supply tank 1 is seen, and a lead roller 3 capable of feeding out the coarse material in the supply tank 1 is rotatably mounted on the inner side of the lower opening 2. A variable speed motor 4 supported by a machine frame 15 and a lead roller 3 are transmission connected via a belt pulley 16, and the variable speed motor 4 is connected to a control box 17.

Above the terminal end side B of the sorting plate a and the sorting plate a
Support frames 18 and 19 connected to both sides of the upper part of the sorting plate A are installed horizontally above the middle part in the longitudinal direction, and the support frame 1 is located at the center in the width direction of the sorting plate A.
Sensors S ₁ and _{S 2} connected to the control box 17 are installed in the center of the boxes 8 and 19, _respectively . The system is configured to be able to detect the presence or absence of a flow.

In addition, when both sensors S ₁ and S ₂ detect the flow of coarse material, the variable speed motor 4 is shifted to a low speed so that the rotation of the lead roller ₃ is slowed _down . When detecting flow (no flow), the variable speed motor 4 is controllably installed so that the speed is changed to a high speed so that the lead roller 3 rotates quickly.

Incidentally, if the sensor S ₂ located above the middle detects it, but the sensor S ₁ at the end does not detect it, the speed change motor does not change the rotation speed.

During work, the coarse grains in the supply tank 1 are fed to the lower sorting body A by the rotation of the lead roller 3, and are sorted while flowing on the oscillating sorting plate a. The grains flow down the grain plate 5 and are taken out from the discharge port 8, and the remaining small amount of straw waste does not leak from the sorting plate a, flows down on the sorting plate a, and is discharged from the discharge port 7 as it is. .

In this state, both sensors S ₁ and S ₂ will detect the flow of the coarse material flowing down on the sorting plate a, and the amount will decrease and even the straw waste in the coarse material will fall from the sorting plate a. If leakage occurs and the flow stops near the terminal end, both sensors S ₁ and S ₂ will not detect it, and the rotation of the variable speed motor 4 will be increased to rotate the lead roller 3 faster and increase the amount supplied onto the sorting plate a. And, conversely,
When the amount of coarse material on the sorting plate a becomes too large and the paddy is discharged from the discharge port 7 at the terminal end along with the straw waste, both sensors S ₁ and S ₂ are detected and activated, and the variable speed motor 4 is activated. By lowering the rotation of the lead roller 3 and reducing the amount of feed onto the sorting plate a, the amount of feed is adjusted so that it always flows down to the terminal side of the sorting plate a. be.

As described above, the present invention provides a rice grain sorting machine which is configured with a supply tank visible above one supply end side of a swinging sorting body having a sorting plate such as a perforated iron plate, and a rice grain sorting machine that has a sorting plate such as a perforated iron plate and has a supply tank that is visible above the supply end side of the swinging sorting body. A lead roller is mounted on the shaft, and the lead roller is rotatably mounted by a variable speed motor, and above the terminal end of the sorting plate, the presence or absence of a flow of coarse material on the sorting plate is detected. Since a sensor is installed to control the variable speed motor in relation to the presence or absence of the variable speed motor, the sensor reliably detects the flow of the rough material flowing on the sorting plate and is sorted, and the sensor controls the speed according to the flow condition. The feed rate can be adjusted by controlling the rotation of the lead roller using a variable speed motor, and the flow of coarse material on the sorting plate is maintained at all times, even towards the terminal end, improving sorting performance. It is possible to increase the efficiency of the sorting process and perform efficient sorting.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view of the entire rice grain sorter, FIG. 2 is a vertical sectional view of a part thereof, and FIG. 3 is a top view of the sorting body. a... Sorting plate, A... Sorting body, A... One supply end side, 1... Supply tank, 2... Lower port, 3... Lead roller, 4... Variable speed motor, B... End side, S ₁ ...Sensor.

Claims (1)

[Claims] 1. In a paddy coarse sorter configured with a feed tank 1 visible above the supply end side a of a swinging sorting body A having a sorting plate a such as a perforated iron plate, the lower opening 2 of the supply tank 1 A lead roller 3 is mounted on the shaft, and the lead roller 3 is rotatably mounted by a variable speed motor 4, and the presence or absence of rough sorting flow on the sorting plate a is detected above the terminal end side of the sorting plate a. 1. An automatic feed control device for a paddy coarse sorter, characterized in that it is equipped with a sensor _S1 that detects and controls the variable speed motor 4 in relation to the presence or absence of the detection.