JPH0651122B2 - Control device for paddy sorting machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a control device for a hull / sorter.

[Prior art]

In a hulling / sorting machine, as a means for adjusting the sorting air volume of a wind-separating device that wind-sorts the sloughing rice in relation to the increase / decrease in the amount of the sloughing-out rice that has been hulled by the removing device, Japanese Patent Publication No. -2215
There is a gazette.

Further, in a hulled sorting machine having a rotary sorting cylinder that rotates around the horizontal axis, as the number of rotations of the rotary sorting cylinder decreases, as to adjust the grain supply amount to the rotary sorting cylinder to the decreasing side, There is JP-A-59-213482.

[Problems to be solved by the invention]

Slippers for hulling, wind-powered device for wind-selecting the rice-rice removed by hulling-off, rotation with a large number of jar holes on the inner surface of the rice-picked-out rice In a hulling / sorting machine that sorts hull / brown rice with a sorting tube, the sorting air volume of the wind power device and the rotation speed of the rotating sorting tube are related to the increase / decrease in the amount of rice that has been hulled by the removing device. Need to be adjusted. Therefore, the present invention relates to the increase / decrease in the amount of rice to be removed by the removing device, and adjusts the number of revolutions of the wind power device and the rotary sorting cylinder all at once,
It is intended to facilitate the operation of the hulling and sorting machine.

[Means for solving problems]

In order to solve such a problem, the present invention employs the following technical means. That is, the removing device 2 for hulling
A wind power device 4 for wind-selecting the slide-out rice of the removing device 2, a rotary sorting cylinder 24 that rotates around the horizontal axis for selecting the slide-out rice after the hulling wind-selection
In the hulling and sorting machine including the rotary grain sorting device 21 configured as described above, the supply hopper 2 above the removing device 2 is provided with a supply adjusting plate 3 for adjusting the supply amount, and the wind power device 4 is provided with a sorting wind. A control mechanism 6 that adjusts the temperature is provided, and the detection amount of the sensor 5 that detects the opening degree of the supply adjusting plate 3 is increased or decreased,
The control mechanism 6 for adjusting the wind force of the wind power device 4 and the rotation speed adjusting means for adjusting the rotation speed of the rotation selection cylinder 24 are adjusted in association with each other, and the control device of the rice hull sorting machine is configured.

[Operation and effect of the invention]

The unwound rice that has been hulled by the removing device 2 is wind-selected by the wind power device 4 below, and the unwound rice that has been wind-selected is supplied to the rotary sorting cylinder 24 that rotates around the horizontal axis, and then the unhulled / brown rice is removed. To be selected. During such a hulling / sorting operation, the supply adjusting plate 3 of the supply hopper 2 is adjusted to increase / decrease the supply amount to the removing device 2.
Then, in association with the increase / decrease in the supply amount, the control mechanism 6 of the wind power device 4 is adjusted to increase / decrease the sorting wind, and the rotation speed adjusting means of the rotary sorting cylinder 24 is adjusted to the increasing side or the decreasing side. Therefore, despite the increase or decrease of the amount of grains in the rotary sorting cylinder 2, the hull sorting work can be smoothly continued while maintaining the predetermined number of rotations and the sorting accuracy, and the operation operation becomes simple.

〔Example〕

In the illustrated example, the supply adjusting plate 3 is provided at the bottom of the supply hopper 1.
Is rotatably pivoted, and an opening sensor 5 composed of a potentiometer for detecting the opening of the supply adjusting plate 3 is provided at this pivoting portion.

At the lower part of the supply hopper 1, there is provided a removing device 2 in which a pair of left and right removing rolls 7, 7 are mounted on a shaft.
A sorting shelf 8 is provided below the removing device 2, and a sorting air passage 9 is formed from a lower rear portion of the sorting shelf 8 toward an upper front portion thereof. A tip end of the sorting air passage 9 is a wind tunnel 10. It is configured to communicate with the wind power device 4 via the.

This wind power device 4 is provided with a suction fan 11, and a split pulley 12 is provided at a shaft end portion of the suction fan 11, and a sliding side split pulley of the split pulley 12 is axially moved by rotating a cam. The sliding structure is such that the pitch diameter of the split pulley 12 can be expanded or reduced, and the cam is provided with an arm 13 as shown in FIG.

An opening detection value by an opening sensor 5 provided on the supply adjusting plate 3,
And, the rotation speed detection value detected by the rotation sensor 14 (for example, detected by frequency) of the suction fan 11 is compared with an "opening degree-rotation speed diagram" which is experimentally obtained in advance by a comparison circuit, The difference is detected, and the control circuit controls the control motor 1
5 forward or reverse to extend and retract rod 16,
The arm 13 is rotated in the forward and reverse directions, the pitch diameter of the split pulley 12 is expanded and contracted, and the rotation speed of the suction fan 11 is increased or decreased.
The control mechanism 6 for adjusting the wind power device 4 is operated.

A sliding rice gutter 17 and a second gutter 18 are arranged at the bottom of the sorting air passage 9, and a spiral 19 is installed inside the bottom of the sliding rice gutter 17, and an end of the spiral 19 is provided. To the part, a slide-out rice thrower 20 is attached.

Reference numeral 21 denotes a rotary grain sorting device, which is located behind the removing device 2 and is driven by drive rollers 23 and 23 so that the rotary sorting cylinder 24 is rotated in the box 22 around the longitudinal axis. It is supported. This rotary sorting cylinder 24 is cylindrical and has a large number of pot holes into which grain can be inserted on the inner peripheral surface, a side wall is provided on the rear side which is the sorting start end side, and an inner circumferential surface is located on the sorting end side. There is provided a paddy pumping chamber 25 which is partitioned by a plurality of partition plates in the rotating direction.

Inside the rotary sorting cylinder 24, a brown rice gutter 26 for receiving brown rice is provided.
Is provided in the front-rear direction, a sluice valve 27 is rotatably supported by a shaft 28 on the rotation rising side of the rotation selection cylinder 24, and a spiral 29 is mounted on the bottom portion.

On the side of the brown rice gutter 26, a supply gutter 30 is arranged on the rising rotation side of the rotary selection tube 24 and provided along the front-rear direction.
A spiral 31 is mounted on the bottom.

The feed gutter 30 is formed at the start side of the transport to receive the slid rice that is fried by the sludge thrower 20 from the supply port 32, and at the end of the transport through the supply cylinder 33, the rotary sorting cylinder 2
It communicates with the sorting start side of No. 4.

A brown rice discharge passage 34 communicating with the brown rice gutter 26 is provided at the front end of the box 22. The brown rice discharge passage 34 communicates with a brown gutter 36 through a brown rice gutter 35. Braces the helix and attaches the brown rice thrower 3 to the side edge of the helix.
7 is attached.

A paddy reduction gutter 38 is inserted at the sorting end side of the rotary sorting cylinder 24, and the paddy pumped in the paddy pumping chamber 25 is received by the paddy reduction gutter 38 and returned to the supply hopper 1.

When the supply adjusting plate 3 is opened, the paddy supplied to the supply hopper 1 is supplied to the pair of left and right rotating depulling rolls 7, 7. The exfoliated rice removed by the removing rolls 7 and 7 is sorted by the sorting wind of the wind power device 4 in the sorting air passage 9, and light rice husks and dust are discharged to the outside of the machine.

The opening degree of the supply adjusting plate 3 is detected by the opening degree sensor 5, and the rotation speed of the suction fan 11 of the wind turbine 4 is
It is detected by the rotation sensor 14. The detected values of the opening sensor 5 and the rotation sensor 14 are compared with an opening-rotation number diagram by a comparison circuit to detect a difference, and the control circuit activates the control mechanism 6 to cause the paddy supply adjusting plate 3 to operate. When the opening is large and the amount of the rice to be removed increases, the rotation speed of the suction fan 11 is increased to strengthen the wind force, and conversely, when the opening of the paddy supply adjusting plate 3 is small, The wind force can be weakened and the wind force of the wind power device 4 can be controlled according to the opening degree of the supply adjusting plate 3.

The removed rice selected by the wind force of the wind power device 4 is collected by the removed rice receiving gutter 17 and supplied by the attached rice thrower 20.
The grain is fried to 0, transferred to the rear by the spiral 31 of the supply gutter 30, and supplied from the supply cylinder 33 to the sorting start end side of the rotary selection cylinder 24.

The supplied grains in the rotary sorting cylinder 24 are transferred to the sorting end side while being repeatedly subjected to the sorting action of the ascending sorting process of scooping up by the pot hole on the inner peripheral surface and the descending stroke of falling, and the small brown rice is potted. Brown rice gutter 26 scooped up by the hole
After being sorted and dropped by the spiral rice 29 and transferred by the spiral 29, it is collected in the trough 36 through the brown rice discharge passage 34 and the brown rice trough 35, and is taken out of the machine by the brown rice thrower 37.

The mixed rice for reducing paddy / brown rice falls into the supply trough 30, joins with the slide-out rice supplied from the removing device 2, and is supplied again to the selection start end side of the rotary selection cylinder 24 for selection. Repeated.

The unhulled paddy flows down to the sorting end side of the rotary sorting tube 24 while flowing down the surface layer of the fluidized bed flowing from the start end side to the terminal side in the rotary sorting tube 24, and is pumped up in the paddy pumping chamber 25. After being returned to the supply hopper 1 through the paddy return trough 38, the paddy is again hulled.

In addition to the above-described configuration in which the opening degree of the supply adjusting plate 3 is detected by the opening degree sensor 5 and the wind force of the wind power device 4 is controlled,
The rotation speed of the rotary selection cylinder 24 is controlled and the position of the sluice valve 27 in the rotation selection cylinder 24 is adjusted and controlled.

That is, as shown in FIG. 4, the pulley 39 of the spiral 31 of the supply gutter 30, the pulley 40 of the spiral 29 of the brown rice gutter 26, and the pulley 41 of the drive roller 23 of the rotary selection tube 24 are
The input side pulley 39 is provided with a split pulley by rubbing the belt, and the sliding side pulley is configured to be slidable in the axial direction. A pulley 42 is provided, and the tension pulley 42 tensions or loosens the belt to expand or contract the pitch diameter of the split pulley, thereby increasing or decreasing the rotation speed of the rotary selection cylinder 24.

Further, a rotation speed sensor 43 (for example, one that detects the frequency) for detecting the rotation speed is provided near the outer circumference of the rotation selection cylinder 24, and the detected rotation speed and the opening sensor 5 of the supply adjusting plate 3 are provided. The detected value of the opening degree by the above is compared with the experimentally obtained opening degree-rotation number diagram of the rotation selection cylinder by a comparison circuit to detect a difference, and the control circuit rotates the control motor 44 in the forward and reverse directions. Then, the tension pulley 42 is moved.

Further, the brown rice sluice valve 2 is attached to the shaft 28 of the brown rice sluice valve 27.
A sluice valve sensor 45 including a potentiometer for detecting the position of No. 7 is provided, and the detection value by the sluice valve sensor 45 and the opening detection value by the opening sensor 5 of the supply adjusting plate 3 are experimentally obtained in advance. -Comparison with the sluice valve position diagram is detected by a comparison circuit, and the control circuit rotates the sluice valve sensor 45 and the brown rice sluice valve 27 forward and backward to adjust and control the position of the brown rice sluice valve 27. I am trying.

When the opening detection value of the supply adjustment plate 3 detected by the opening sensor 5 is large and the amount of rice to be ejected increases, the tension pulley 42 is retracted to loosen the belt. When the pitch diameter becomes large and the number of rotations of the rotary selection cylinder 24 increases, and conversely, when the opening degree is small and the amount of rice sticking out decreases, the tension pulley 42 is pushed out to tension the belt. , 39, the pitch diameter is reduced, and the number of rotations of the rotation selection cylinder 24 is reduced. Therefore,
Even if the amount of grains to be sorted increases in the rotary sorting cylinder 24 and the load of the drive rollers 23, 23 that rotationally drive the rotary sorting cylinder 24 increases, the predetermined number of rotations can be maintained, and the sorting efficiency and sorting accuracy can be maintained. Can be improved.

In addition, when the opening degree is large and the amount of rice to be ejected increases according to the opening degree detection value of the opening degree sensor 5 of the supply adjusting plate 3, the position of the brown rice sluice valve 27 is set to the rotation raising flag of the rotary selection tube 24. When the opening is small and the amount of rice that has run out decreases in the opposite direction to the side opposite to the side, the rotation is increased and controlled to the side a.

Therefore, the rotation speed of the rotary sorting cylinder 24 and the position of the brown rice sluice valve 27 can be adjusted and controlled depending on the amount of the ejected rice, so that the grain fluidized bed in the rotary sorting cylinder 24 is stable and stable sorting performance is obtained. .

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a side sectional view, FIG. 2 is a partially cutaway rear view, FIG. 3 is a partial side view, and FIG. 3 is a partial side view. [Explanation of reference symbols] 1 ... Supply hopper 2 ... Removing device 3 ... Supply adjusting plate 4 ... Wind power device 5 ... Opening sensor 6 ... Control mechanism 7 ... Removing roll 8 ... Sorting shelf 9 …… Sorting wind path 10 …… Wind tunnel 11 …… Suction fan 12 …… Split pulley 13 …… Arm 14 …… Rotation speed sensor 15 …… Control motor 16 …… Rod 17 …… Slipped rice receiving gutter 18 …… No. 2 gutter 19 ...... Spiral 20 …… Soiled rice thrower 21 …… Rotating grain sorting device 22 …… Box 23 …… Drive roller 24 …… Rotating sorting cylinder 25 …… Paddy pumping chamber 26 …… Brown rice receiving Gutter 27 …… Brown rice sluice valve 28 …… Shaft 29 …… Rasen 30 …… Supply gutter 31 …… Rasen 32 …… Supply port 33 …… Supply cylinder 34 …… Brown rice discharge passage 35 …… Drain shelf 36 …… Gutter 37 ...... Brown rice thrower 38 ...... Paddle reduction gutter 39 ...... Pulley 40 ...... -41 ... Pulley 42 ... Tension pulley 43 ... Rotation speed sensor 45 ... Control motor

Claims (1)

[Claims] Claims: 1. A removing device for hulling, a wind force device for selecting the removed rice from the removing device 2 by a wind, and a rotary selection cylinder rotating around a horizontal axis for selecting the removed rice after the selection for hulling wind. In a hulling and sorting machine composed of a rotary grain sorting device 21 composed of 24, a supply adjusting plate 3 for adjusting the supply amount is provided in the supply hopper 2 above the removing device 2, and a wind force device 4 is selected. A sensor 5 for detecting the opening degree of the supply adjusting plate 3 by providing a control mechanism 6 for adjusting the wind
The control mechanism 6 for adjusting the wind power of the wind power device 4 and the rotation speed adjusting means for adjusting the rotation speed of the rotary selection cylinder 24 are adjusted in association with the increase or decrease in the detected protrusion amount. Control device for paddy sorting machine.