JPH07194239A - Excluder for grains remaining in cereal grain grader - Google Patents

Abstract

PURPOSE:To enable perfect exclusion of grains remaining in the grader only by opening and shutting the shutter at the outlet for remaining grains according to a throwing action and impact caused by intermittent operations of a rotary screening mesh cylinder and a rotary screw. CONSTITUTION:The grain grader is equipped with a rotary screening mesh cylinder 3 and a rotary screw 4. A freely openable shutter 19 is fitted to the outlet 18 for remaining grains. The motor 6 driving the screen cylinder 3 and the screw 4 is intermittently operated in interlock with the operation of the shutter 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary sorting net cylinder for discharging waste grains mixed in a grain to be sorted, and lifting and moving grains to be sorted along the inner surface of the rotary sorting net cylinder. In a grain sorter equipped with a sorting unit composed of a rotating spiral body, after the sorting work is completed, the residual grains in the rotary sorting mesh cylinder and on the rotating spiral unit are removed from the sorting unit only by operating the shutter of the residual grain discharge port. The present invention relates to a residual particle discharging device for discharging.

[0002]

2. Description of the Related Art A grain sorting machine, in which a rotary helix is provided inside a vertical sorting net cylinder and the grain to be sorted is lifted and moved by the rotary helix and the waste particles are sorted and discharged by the sorting net barrel, is known, for example. Various types are known, as described in JP-A-60-202771.

[0003]

In this type of grain sorter, when the rotation of the rotary sorting net cylinder and the rotary spiral is stopped at the end of the sorting operation, the grains remain in the sorting section. If the grains are left in the sorting section while they remain, there is a risk that the grains will be mixed into the selected grains during the next sorting and the quality thereof will be impaired. Further, if the grains are left in the sorting section for a long period of time beyond the season, the grains are deteriorated and solidified, which causes inconveniences such as sticking to the rotary spiral and clogging of the sorting net cylinder. Therefore, it is essential that the residual grains in the sorting section be completely discharged each time after the work is completed.

By the way, in the conventional grain sorter of this type, after the completion of the work, the rotary sorting mesh cylinder and the rotary spiral are idled to shake off the residual grains in the rotary sorting mesh cylinder and on the rotary spiral. The shutter of the residual grain discharge port is opened to discharge the residual grain. However, since such a residual particle discharging operation requires a procedure of two or more operations, the residual particle discharging operation is not only complicated, but often only the operation of opening the shutter of the residual particle discharging port is performed. hand,
There is an inconvenience that the residual particles are left without being discharged from the sorting section.

The present invention is intended to solve such a problem, and the rotation of the rotary selection mesh cylinder and the rotary spiral is intermittently performed by simply opening and closing the shutter of the residual grain discharge port. The residual particles in the sorting section can be completely discharged by the throwing action and the impact action by the intermittent rotation of the rotary sorting mesh cylinder and the rotating spiral body, and the residual particles can be reliably discharged by simplifying the residual particle discharging operation. It is an object of the present invention to provide a residual grain discharging device in a grain sorter that can be set.

[0006]

The present invention is configured as follows as technical means for achieving the above object. That is, the first configuration is a rotary sorting net cylinder for discharging the waste grains mixed in the grain to be sorted, and a rotary spiral body for lifting and moving the grain to be sorted along the inner surface of the rotary sorting net cylinder. In a grain sorter having a sorting unit configured with, a rotatable sorting net provided in a rotary sorting net cylinder and a residual grain discharging port for discharging residual grains on the rotating spiral body after the completion of the sorting work, and a rotary sorting net. A motor for rotating and driving the cylinder and the rotary spiral is interlocked so that the motor is operated when the shutter is opened and stopped when the shutter is closed.

In the second configuration, a rotary selection net cylinder for discharging the waste grains mixed in the selected cereal grains, and lifting and moving the selected cereal grains along the inner surface of the rotary selection net cylinder. In a grain sorter equipped with a sorting unit composed of a rotating spiral body, in a circuit of a motor for rotationally driving the rotating sorting net cylinder and the rotating spiral body and its power supply, a side for closing a power supply circuit of the motor and an intermittent operation are performed. A changeover switch that closes the power supply circuit via a specified timer is provided, and this changeover switch is a shutter that can be opened and closed provided at the residual grain discharge port that discharges the residual grains inside the rotary sorting mesh cylinder and the rotating spiral body after the sorting work is completed. The motors are interlocked with each other so that the motor is operated intermittently when the shutter is opened.

[0008]

According to the apparatus of the present invention, after the sorting operation is completed, the opening / closing operation of the shutter of the residual particle discharge port is repeated, so that when the shutter is opened, the rotating sorting net cylinder and the rotating spiral body rotate, and the shutter is released. The rotation stops when the is closed. Then, the residual particles in the sorting section are reliably discharged due to the residual particle throwing action and the impact action due to the intermittent rotation.

In particular, a changeover switch for closing the power supply circuit is provided in the circuit of the motor for rotatably driving the rotary selection mesh cylinder and the rotary spiral body and the power supply thereof, via the side for closing the power supply circuit of the motor and the timer for defining intermittent operation. With the one provided, only by opening the shutter of the residual particle discharge port, the rotary selection mesh cylinder and the rotary spiral are intermittently rotated, and the residual particles of the intermittent part are thrown and impacted to remove the residual particles of the sorting section. It is surely discharged.

[0010]

Embodiments of the present invention will be described with reference to the drawings. In FIG. 1 and FIG. 2, reference numeral 1 is a sorting unit, and the sorting unit 1 is configured by providing a rotary sorting mesh cylinder 3 in an exterior body 2 and incorporating a rotary spiral 4 in the rotary sorting mesh cylinder 3. There is. The rotating spiral body 4 is interlocked with the motor 6 via the lower speed reducing mechanism 5 and is rotationally driven by the motor 6. The rotary selection mesh cylinder 3 is interlocked with a motor 6 via a speed reduction mechanism 7 and is rotationally driven in a reverse direction at a lower speed than the rotary spiral body 4.

A supply cylinder 8 for the grains to be selected is fixed to the exterior body 2 at a lower position of the rotary selection mesh cylinder 3, and a supply hopper 9 is connected to the supply cylinder 8. Supply cylinder 8
A supply cylinder 10 that engages with the rotary selection mesh cylinder 3 and rotates integrally therewith is located therein. An inlet 11 for the grains to be sorted is provided below the supply cylinder 10. A guide vane 12 is formed on the outer periphery of the supply cylinder 10, and the rotating supply cylinder 10 and the guide vane 12 cause the supply hopper 9 to move.
The grains to be sorted supplied from are pushed down and guided inside from the introduction port 11. 13 is a groove for discharging fine powder such as bran, 14
Is the outlet. Reference numeral 15 is an upper grain discharging blade, 16 is a waste particle receiving portion, and 17 is a waste particle discharging blade. Rotating sorting net cylinder 3
The scrap particles scraped out by the scrap particle discharging blades 17 which rotate integrally with the scrap particles are discharged from the scrap particle discharging duct. Reference numeral 18 is a residual particle discharge port, 19 is a shutter that can be opened and closed, and 20 is a residual particle discharge duct. Reference numeral 21 is a tank for temporarily storing refined grains of selected grains, 22 is an outlet thereof, and the outlet 22 is provided with an automatic opening / closing shutter. Reference numeral 23 denotes a weighing scale, and the weighing scale 23 has a built-in load cell for converting the weight into an electric signal. The scale 23 is the outlet 22 of the tank 2.
It is arranged below and used. Reference numeral 24 is a storage bag for grains.

A shutter 19 provided at the residual grain discharge port 18
Is a slide openable and closable, and when a shutter 19 is pulled in the vicinity thereof to open the residual grain discharge port 18, the contact is closed,
Further, there is provided a limit switch 25 which opens a contact when pushed to close the residual particle discharge port 18. The limit switch 25 constitutes the circuit shown in FIG. The shutter 19 may be opened and closed in the vertical direction as shown in FIG.
Is operated upward to open the residual grain discharge port 18, the limit switch 25 is closed. Other configurations are the same as those shown in FIG.

As shown in FIG. 3, reference numeral 26 is a power source, and the motor 6 for rotationally driving the rotary selection mesh cylinder 3 and the rotary spiral body 4 is connected to the power source 26 via a motor switch 27. The limit switch 25 is connected in parallel with the motor switch 27.

FIG. 5 shows another example shown in FIG. That is, in this other example, the limit switch 25 functions as a changeover switch, the normally closed contact side is interposed in the circuit of the motor 6 and the power supply 26, and the normally open contact side is connected via the timer 28 to the motor. 6 and power 26
And intervened in the circuit. The timer 28 operates to connect and disconnect the circuit at regular intervals. According to this circuit configuration, the shutter 19 is pulled and the residual grain discharge port 18 is opened.
When is opened, the motor 6 is intermittently rotated, and the rotary selection mesh cylinder 3 and the rotary spiral body 4 are intermittently rotated.

In the circuit configuration of FIG. 3, when the operation of opening and closing the shutter 19 of the residual particle discharge port 18 is repeated after the completion of the sorting operation, the motor 6 intermittently operates to rotate the rotary sorting net cylinder 3 and the rotation. Since the spiral body 4 rotates intermittently,
The residual particles of the sorting unit 1 are reliably discharged from the residual particle discharge port 18 by the residual particle throwing action and the impact action due to the intermittent rotation.
In the circuit configuration shown in FIG. 5, after the sorting operation is completed, only the operation of opening the shutter 19 of the residual particle discharge port 18 is performed, and the motor 6 is intermittently operated at every time specified by the timer 28 to perform rotary sorting. Since the mesh cylinder 3 and the rotating spiral body 4 rotate intermittently, similarly, the residual particles of the sorting unit 1 are surely discharged from the residual particle discharge port 18 by the residual particle throwing action and the impact action due to the intermittent rotation.

During the sorting operation, the fine grains sorted by the sorting unit 1 are transferred from the delivery port 22 of the tank 21 to the storage bag 2.
4 is filled, and when a preset weight is detected by the weight scale 23, automatic metering control is performed so that the automatic shutter is automatically closed. The main body of the grain sorter is provided with a control device for automatic weighing, such as setting the weight value to be weighed and closing the automatic shutter of the grain delivery port 22 when the weighing weight 23 weighs the set weight value. .

[0017]

According to the present invention, by simply opening and closing the shutter of the residual grain discharge port, the rotation of the rotary sorting mesh cylinder and the rotary spiral is interrupted, and the residual grains of the sorting unit are rotated. Further, it is possible to obtain the effect that the particles can be completely discharged by the impact due to the intermittent rotation of the rotary spiral, and that the residual particles can be surely discharged by simplifying the residual particle discharging operation.

[Brief description of drawings]

FIG. 1 is a sectional view of a grain sorter according to the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is a circuit diagram showing an example of a residual particle discharging device.

FIG. 4 is an enlarged sectional view of an essential part showing another example of FIG.

FIG. 5 is a circuit diagram showing another example of the residual particle discharging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sorting part 3 Rotating sorting mesh cylinder 4 Rotating spiral body 6 Motor 8 Supply room for sorting grains 9 Supply hopper 10 Supply cylinder 18 Remaining grain discharge port 19 Shutter 20 Remaining grain discharge duct 25 Limit switch 26 Power supply 27 Motor switch 28 Timer

Claims (2)

[Claims] 1. A rotary selection net cylinder for discharging waste particles mixed in the selected cereals, and a rotary spiral body for lifting and moving the selected cereals along the inner surface of the rotary selection net cylinder. In a grain sorter equipped with a sorting unit, an openable and closable shutter provided in the rotary sorting netting cylinder and the residual grain discharge port for discharging the residual grain on the rotating spiral body after finishing the sorting work, and in the rotary sorting netting barrel and A residual grain discharging device in a grain sorter, wherein a motor for rotationally driving a rotating spiral body is interlocked so that the motor is operated when a shutter is opened and stopped when the shutter is closed. 2. A rotary selection net cylinder for discharging waste particles mixed in the selected cereal grains, and a rotary spiral body for lifting and moving the selected cereal grains along the inner surface of the rotary selection net cylinder. In a grain sorter having a sorting unit, a motor for rotating and driving a rotary sorting net cylinder and a rotary spiral, and a power supply for the same, through a side for closing a power circuit of the motor and a timer for defining an intermittent operation. A changeover switch for closing the power supply circuit is provided, and this changeover switch is interlocked with an openable / closable shutter provided at the residual grain discharge port for discharging the residual grain in the rotary sorting net cylinder and the rotating spiral body after the completion of the sorting work. A residual grain discharging device in a grain sorter, wherein the motor is interlocked so as to intermittently operate during an opening operation.