JPH0352680A - Screening operation controller for rice hulling and screening device - Google Patents

Abstract

PURPOSE:To stabilize screening by providing a finishing control valve in a screening cylinder and executing the rotation control of the screening cylinder by a manual change operation. CONSTITUTION:A turning angle is detected by a lever position sensor 40 and a driving motor 17 of the screening cylinder is driven to control the rotating speed or the screening cylinder 1 to an adequate rotating speed when an operation lever 4 is operated and is turned and adjusted to a prescribed position. The rotating speed is controlled according to the detection of splashing position sensors 22 to 24 to automatically control the driving motor 17. A driving motor 37 of the finishing control valve 2 is driven, by which the valve is turned and controlled to the angle position set by the operation lever 4. The disturbance of the screening by the disturbance of a mis-operation is lessened in this way.

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a sorting operation control device for a rice hulling sorting device.
It can be used as a sorting device that separates brown rice and paddy from mixed rice that mixes brown rice and paddy, or crushed rice that has been shelled by a shelling device.

Conventional technology As a sorting device for a huller, a sorting cylinder is used which receives a supply of mixed rice, which mixes brown rice and paddy, and rotates to separate the brown rice and paddy.
Inside this sorting cylinder, a brown rice receiving gutter for receiving the brown rice scooped up by this sorting cylinder, a mixed rice receiving gutter for receiving unsorted mixed rice, etc. are installed, and between these brown rice receiving gutter and the mixed rice receiving gutter, there is a A finishing control valve is provided to partition the brown rice sorting area, and the number of rotations of the sorting cylinders and the finishing g valve are adjusted to suit the sorting conditions.

Problems to be Solved by the Invention In the prior art as described above, in order to adjust the efficiency and accuracy of sorting, the number of rotations of the sorting cylinder and the finishing control valve are adjusted, but these adjustment operations are difficult. The order of these is unclear, and depending on the operation, the sorting can be significantly disrupted.

This invention solves the drawbacks of such sorting adjustment operation,
This is intended to make operations easier. Means for Solving the Problems This invention has a sorting cylinder that receives a supply of mixed rice containing brown rice and paddy inside and sorts it while rotating. In a hulling sorting device that is equipped with a finishing control valve that separates the boundary between the sorting area and the unsorted area, and manually controls the rotation of the sorting cylinder and the finishing control valve, the manual change operation controls the rotation of the sorting cylinder. The sorting operation control device is provided with a sorting control device that controls the closing position of the finishing control valve when the sorting cylinder exceeds the control range after executing rotation control.

Function of the Invention When mixed rice, which is made by mixing unhulled rice such as crushed rice and paddy, is fed to a rotating sorting cylinder, as the sorting cylinder rotates, the brown rice and the unhulled rice are separated. Since the lifting ranges are different, brown rice with a high lifting range can be separated and sorted into brown rice, unsorted mixed rice, etc. by dividing the brown rice with a finishing control valve.

If you manually adjust the sorting efficiency and accuracy,
The sorting control device first controls the rotation of the sorting cylinder and changes the rotation speed so as to determine the brown rice lifting area at an appropriate position.

When the control of the rotation speed of the sorting cylinder exceeds the control range, the finishing control valve controls the partition position to change the partition position between brown rice and unsorted mixed rice, and to separate the paddy into the brown rice. Control the optimum position to avoid contamination.

Effects of the Invention Since the present invention has the above-mentioned structure,
When the sorting state is manually changed during sorting work, the sorting control device controls the rotation of the sorting cylinder, and when this rotation control exceeds a predetermined control range, the finishing control valve is controlled. Since each of these controls is performed automatically and in a fixed order regardless of the operation, it is easy to operate and is less likely to disrupt the sorting due to confusion due to erroneous operation. .

Example Embodiments of the invention will be described based on illustrated examples.

The hulling and sorting device has a hulling device 5 and a sorting device 6 that receives and sorts the hulled rice that is hulled by the hulling device 5. A sorting cylinder 1 that forms and rotates, and a brown rice gutter 7 and a mixed rice gutter 8 that receive brown rice and mixed rice that are scooped up by the rotation of this sorting cylinder l.
etc., and a finishing control valve 2, etc., which is located between the brown rice gutter 7 and the mixed rice gutter 8 and is rotated along the surface of the sorting cylinder.

The husking device 5 has a structure in which a pair of front and rear husking rolls 9 husks the paddy supplied from an upper paddy supply funnel 10 and flows down into a lower sorting air passage 11 for wind selection. Reference numeral 12 denotes a suction dust exhauster that blows a sorting air through the sorting air passage 11, and 13 denotes a rice draining gutter that receives the scraped rice from the dehulling device 5 and the returned mixed rice from the sorting device 6. 14 is the second gutter that receives the second item. The sorting cylinder 1 is connected to a sorting case 15 behind the de-peeling device 5.
The front end and the rear end are supported by a roller 16 so as to rotate around an axis in the front and back direction, and a part of the roller 16 is driven and rotated by a motor 17 to move the sorting cylinder 1 in a fixed direction. It is configured to rotate through transmission. Further, a recess into which the brown rice is inserted is formed on the inner peripheral surface of the sorting cylinder ↓, and the brown rice, paddy, etc. are lifted in the rotational direction by the resistance of this recess.

A brown rice gutter 7 and a mixed rice gutter 8 are provided in parallel in the central part of the sorting cylinder 1 along the front-rear direction, and each gutter 7,
8 are provided with spirals 18 and 19 for transfer, and these spirals 1
8. Brown rice, mixed rice, etc. are transferred in the axial direction by the transmission rotation of 19. Along the upper side of the brown rice gutter 7 and on the side of the mixing rice gutter 8, there is provided a finishing control valve 2 that can move up and down about the pivot shaft 20, and on the opposite side from the mixing rice gutter 8, a sorting cylinder 1 is installed. A receiving plate 21 is provided close to the inner peripheral surface. On the upper side of the brown rice gutter 7 of this receiving plate 21, a scattering position sensor 22 is arranged at different heights to receive the reflection of brown rice, and the scattering position sensor 22 detects the upper limit scattering position of the brown rice. The number of rotations of the sorting cylinder l is controlled so that the upper and lower limits are within the appropriate range, and for example, the position for receiving brown rice is located between the upper limit and the lower limit of each scattering position sensor 22 to 23.
The rotational output of the motor 17 is lowered when the upper limit scattering position sensor 22 detects the detection, and the rotational output of the motor 17 is increased when only the lower limit scattering position sensor 24 detects the detection, thereby appropriately controlling the rotational speed of the sorting cylinder. There is a certain point.

Further, a receiving plate 25 is provided on the opposite side of the mixed rice gutter 8 from the brown rice gutter 7 to receive the mixed rice with a low lifting height and flow into the mixed rice gutter 8. The outlet 26 at the front end of this mixed rice gutter 8 is connected to the sorting case 1.
5 into a downspout 27 at the front end, and from this downspout 27 it flows down and returns onto the rice gutter 13.

The front end of the brown rice gutter 7 is placed above the vertical gutter 28 arranged side by side with the vertical gutter 27, and the front end of the brown rice gutter 7 is connected to the first gutter 2 below the sorting cylinder l.
9 This downspout 28 is arranged so that it flows upward;
A switching valve 30 is provided in the middle, and the switching valve 30 can switch the brown rice flowing down the downpipe 28 so that it flows down to the mixed rice gutter 13 side.

In addition to the brown rice trough 7 and the mixed rice trough 8, a supply trough 3 for transferring and supplying the finished rice to the rear end of the sorting cylinder 1, a spiral 32, etc. are provided. The milled rice that is fried through the grain lifting machine 33 is supplied from the rice gutter 13. 34 is a drained rice supply funnel that is visible at the front end of this supply gutter 31. 41 is the paddy receiving trough, sorting cylinder 1
The front end of the cylinder is seen through to receive the paddy that remains in the sorting cylinder 1 and is discharged, and the paddy is returned from the paddy receiving trough 41 to the paddy supply funnel 10 by the paddy lifting machine 42 and transferred for retransfer. It is. Reference numeral 43 is a brown rice frying machine, which takes the brown rice received in the first gutter 29 out of the machine and frys it.

The finish control valve 2 is attached to the pivot shaft 20 of the finish control valve 2.
A finishing control valve position sensor 35 is provided to detect the rotational position of the finishing control valve, which is inputted to the sorting control device 3. Further, this pivot shaft 20 is provided with an arm 36, and this arm 36 is rotated by a finishing control valve drive motor 37 provided at the front end of the sorting case 15, thereby controlling the rotation of the finishing control valve 2. It is said that

The operating lever 4 is attached to an arm 39 rotatable around a shaft 38 at the front end of the sorting case 15, and a lever position sensor 40 provided on the shaft 38 detects the rotation angle of the shaft 38 by the operating lever 4. can be detected. When this operating lever 4 is operated to adjust its rotation to a predetermined position, the lever position sensor 40 detects the rotation angle, drives the sorting cylinder drive motor 17, and adjusts the rotation speed of the sorting cylinder to an appropriate number. The rotation speed is controlled to a certain level. At this time, when the scattering position sensors 22 to 24 detect that the scattering position of brown rice is high and the upper limit sensor 22 detects scattering,
If the rotation speed is kept low, or if only the lower limit sensor 24 detects it and neither the intermediate sensor 23 nor the upper limit sensor 22 detect it, the rotation speed is controlled to be increased and the cylinder drive motor is controlled to the appropriate rotation. Performs 17 automatic controls. When the rotation of the sorting cylinder 1 is determined appropriately in this manner, the drive motor 37 of the finishing control valve 2 is then driven to control its rotation to the angular position set by the operating lever 4.

In this way, the brown rice at the bottom scooped up by the rotation of the sorting cylinder 1 is lifted to a high position and received between the receiving plate 2 and the finishing control valve 2, and the brown rice fi! Transferred at 17. Further, the mixed rice, which is the mixture of brown rice and paddy that is scooped up from the upper layer of the brown rice layer, is received between the finishing control valve 2 and the receiving plate 25, and is transferred to the mixed rice@8. Returned to Suride Yonehiko 3. The unhulled rice left on the front end side of the sorting cylinder 1 after sorting brown rice, mixed rice, etc. is returned from the paddy receiving trough 41 to the unhulled grain lifting machine 42 into the unhulled paddy supply funnel lo.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; the first construction drawing is a front cross-sectional view of a part, the second figure is an enlarged slope view of a part, the third is a side cross-sectional view of the whole, and the fourth figure is a partial front cross-sectional view. It is a control block diagram. Explanation of symbols 1 Sorting cylinder 2 Finishing adjustment device 3 Separate control device a 4 Operation lever Fig. 1 Fig. 2 Fig. 4

Claims (1)

[Claims] There is a sorting cylinder that receives a supply of mixed rice (brown rice and paddy) inside and sorts it while rotating, and divides the border between the sorting area and the unsorted area where the brown rice is scooped up and falling by the rotation of the sorting cylinder. In a hulling sorting device that is provided with a finishing control valve and controls the rotation of the sorting cylinder and the finishing control valve by manual operation, after controlling the rotation of the sorting cylinder by the manual change operation,
A sorting operation control device comprising a sorting control device that controls the closing position of a finishing control valve when the sorting cylinder exceeds a control range.