JPS6314936Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a safety device in a grain sorting device, and is applied to the field of grain conditioning processing machines.

Conventional technology Conventionally, a partition plate with a gap was installed in the middle of a gutter to guide grains without leaking through the grain sorting net, and a spiral conveyor for unloading was mounted on the lower side of the grain sorting net. In a grain sorting device configured with the terminal end close to the partition plate, if the de-stoner or the like in the subsequent process is in poor operating condition, it will become clogged and accumulate in the gutter, As a result, the partition plate is damaged, and good rice that does not leak through the grain sorting screen flows to the spiral conveyor side, resulting in poor sorting.

Problems that the invention aims to solve This invention solves the drawbacks. In such a situation, the safety valve will automatically open and discharge the air to the outside of the machine, creating a safe state. In this state, the operator will also be notified. This provides a simple and safe structure that can be conveniently implemented.

Means to solve problems Next, the embodiment shown in the drawings will be described.

Fig. 2 shows a grain sorting device in a plant, in which grains can be supplied from a supply gutter 8 to one end of five cylindrical grain sorting nets 1, each of which is rotatably installed at a slight inclination in a case 7. The lower part of the gutter 9, which is installed in parallel below the other end of the upper three grain sorting nets 1, is connected to the upper part of the supply gutter 10 which communicates with the upper part of the stone removal machine 2, and the lower part of the gutter 9 is connected to 2 grain sorting nets 1
The lower side of the gutter 3 vertically installed below the other end side is connected to the lower side of the supply gutter 10, and the good rice destoned by the destoner 2 is transferred to the weighing device 1 by the elevator 11.
The structure is similar to that of the conventional structure.

Further, below the two lower sorting nets 1, there is a conveyor gutter 1 into which waste rice leaked from the five sorting nets 1 falls.
3 is installed horizontally, and the spiral conveyor 5 for carrying out is mounted on the conveyor gutter 13. A gap C is formed in the lower part of the plate 4 to communicate with the end side of the spiral conveyor 5 and the gutter 3 side, and outlet ports 14 are provided at three locations in the middle of the conveyor gutter 13.
, and a scrap rice take-out hopper 15 is installed below each outlet 14 to form the same structure as the conventional structure.

The spiral conveyor 5 near the gap C
An opening 16 is formed below the terminal end of the opening 16.
One end of the safety valve 6 that can contact the outer surface of the hinge 17
The safety valve 6 is pivotably mounted to open and close, and a spring 18 that presses the safety valve 6 in the closing direction is in contact with the outer surface of the safety valve 6, and the safety valve 6 is tensed by the spring 18 due to the pressure of the grains. It is installed and configured so that it can be opened by

During work, the waste rice leaking from the five sorting nets 1 falls into the conveyor gutter 13 and is conveyed by the spiral conveyor 5 to each outlet 14.
The good rice that is taken out and discharged without leaking through the upper three sorting nets 1 is transferred from the gutter 9 to the supply gutter 10, as shown by arrow A without leaking through the lower two sorting nets 1. Good rice is discharged from gutter 3 to supply gutter 10.
The good rice supplied from the supply gutter 10 is destoned by the destoner 2, and then sent to the weighing device 12 where it is subjected to grain selection and destoning in the same manner as in the conventional method.

In that case, if the amount of waste rice carried out by the spiral conveyor 5 is large enough to remain on the terminal end side of the spiral conveyor 5, it will pass through the gap C to the gutter 3.
As a result, the work is continued without forcing the partition plate 4.

In addition, the de-stoning machine 2 malfunctioned and the supply gutter 1
When good rice accumulates in the gutter 3 from 0, the grains stop flowing through the gap C, and the pressure of the grains pushes the safety valve 6 open as shown in FIG. The grains flow out of the machine and become safe.

Effects of the invention As described above, the present invention provides a partition plate 4 having a gap C in the middle of the gutter 3 that guides grains that do not leak through the grain sorting net 1, and also In a grain sorting device constructed by having the terminal end of a conveying spiral conveyor 5 mounted on a shaft close to the partition plate 4, a safety valve 6 is provided below the terminal end of the spiral conveyor 5 and can be opened by pressing the grains. Since it is configured so that it can be opened and closed, if the operating conditions are bad and the de-stoning machine 2 etc. in the subsequent process becomes clogged and accumulates in the gutter 3, the pressed grains will push the safety valve 6 open. When it is taken out of the machine, it enters a safe state, and when this happens, the operator can also be notified, and it has the advantage of being of a simple structure and being able to be suitably implemented.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the main parts of an embodiment of the present invention.
Figure 2 shows the grain sorting equipment in the plant;
The figure shows a vertical sectional view of a part of FIG. 1, FIG. 4 shows a side sectional view of a part of FIG. 2, and FIG. 5 shows an operation explanatory view of FIG. 3. 1... Grain sorting net, 3... Gutter, C... Gap, 4...
Partition plate, 5... spiral conveyor, 6... safety valve.

Claims (1)

[Scope of utility model registration request] A partition plate 4 having a gap C is installed in the middle of the gutter 3 that guides grains that do not leak through the grain sorting net 1, and a spiral conveyor 5 for carrying out is mounted on the lower side of the grain sorting net 1. In a grain sorting device in which the partition plate 4 is brought close to the terminal end side, a safety valve 6 is installed below the terminal end side of the spiral conveyor 5 so as to be openable and closable when pressed by the grains. A safety device characterized by: