JPS641180B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses, for example, a huller having a pair of derollers and a sorting plate tilted front and rear and left and right to swing and separate brown rice and paddy while the grains flow down on the sorting plate. This device is equipped with a swinging sorter that separates and sorts grains, and performs hulling work and sorting work continuously. , an angle adjustment member for adjusting the angle of the oscillating sorting plate, and a structure in which the width of the paddy layer on the upper surface of the oscillating sorting plate is kept substantially constant by operating the angle adjustment member based on the output of the grain sensor, A sorting angle sensor is installed to detect the amount of displacement of the oscillating sorting plate by the angle adjusting member, and the unrolling gap adjusting member is driven in conjunction with the angle adjusting operation of the oscillating sorting plate based on the output of the sorting angle sensor. It is configured so that it is possible to easily obtain the unrolling gap (removal pressure) suitable for the properties of paddy, etc., and the angle of the oscillating sorting plate can be adjusted appropriately by improving the unrolling rate. It is an object of the present invention to provide a rice hulling and sorting device that is capable of continuously and stably carrying out the operations of harvesting, removing, and sorting.

An embodiment of the present invention will be described below in detail with reference to the drawings. Fig. 1 is a side view of the whole, and Fig. 2 is a plan view of the same. In the figure, 1 is a swinging sorter, and 2 is a plurality of sorting machines supported swingably to sort grains into brown rice and paddy. Board 3
4 is a mixed rice tank for storing grains after hulling, 5 is a supply tank for distributing and supplying the grains from tank 4 to each sorting plate 3, and 6 is a grain after sorting. This is a discharge gutter for discharging grains, and the grains supplied from the tank 4 to each sorting plate 3 via the supply tank 5 are separated into brown rice and paddy by the swinging movement of the sorting section 2 on the way down. The structure is such that the products are sorted and taken out to a delivery chute 7 via a discharge gutter 6.

FIG. 3 is an explanatory diagram of the drive section of the swing sorting section 2, in which reference numeral 8 denotes a swing drive motor, and 9 a counter operatively connected to the motor 8 via a V-pulley 10 and a belt 11. A pulley, 12 is a counter pulley shaft, 13 is a swing drive pulley interlockingly connected to the counter pulley 9 via a V-belt 14;
Reference numeral 15 denotes a tilt angle motor 1 which is an angle adjustment member pivotably supported via a bracket 16 and a shaft 17.
8 is a screw shaft drivingly connected to the motor 15; 19;
23 is a first rocking plate for tilt adjustment whose base end is fixed to the rotation support shaft 20 and whose tip is connected to the screw shaft 18 via the pivot 21 and the engagement member 22; 23 is the support shaft 20;
The second rocking plate 24 for tilt adjustment has a base end fixedly fixed to the base shaft 25. The second rocking plate 24 for tilt adjustment has a base end fixedly attached to the base shaft 24. a right swing arm that supports and whose other end is swingably connected to the sorting section 2 via a shaft 26; 27 is a swing angle motor swingably supported via a bracket 28 and a shaft 29; 30 is a screw shaft drivingly connected to the motor 27; 31 is a base end fixed to a rotation support shaft 32; an intermediate portion connected to the screw shaft 30; a pivot 33 and an engaging member 3;
4, a swing angle adjustment plate whose tip supports the rotating shaft 35 of the pulley 13, 36 a tension pulley of the belt 14, and 37 an eccentric wheel body 38 fitted to the rotating shaft 35; 39 is a balance weight attached to the rotating shaft 35; 40 is the crank plate 3 that supports the base end;
7, the middle is rotatably connected to the tip of the left swing arm via a pivot 41, one end is swingably connected to the support shaft 42, and the other end is swingably connected to the sorting section 2 via a shaft 43. The sorting unit 2 supported by the swing arms 25 and 40 is oscillated about the shafts 24 and 42 as fulcrums by the driving force transmission action of the motor 8 via the rotation shaft 35, the wheel body 38, and the crank plate 37. At the same time, the shaft 24 is driven by the motor 15.
The left and right inclination angle α of the sorting section 2 is adjusted by adjusting the position of the sorting section 2, and the swinging angle .theta. of the sorting section 2 is adjusted by adjusting the position of the rotating shaft 35 driven by the motor 27. It is composed of

As shown in FIGS. 4 and 5, each sorting plate 3 of the sorting section 2 is provided in a plurality of stages on a frame 44, and the upper surface of the sorting plate 3 has a resistive roughness having a plurality of concave depressions. It is formed in a plane, and has a flow angle of an inclination angle β in the front and rear (that is, right and left in FIG. 5) with respect to the horizontal plane, and an inclination angle of α in the left and right sides, and these are sorted from the tank 4. While the grains to be sorted distributed and supplied to the front and rear inclined upper end side of the plate 3 flow down to this inclined lower end side, the brown rice layer A is formed on the left swinging upward side of the sorting plate 3 due to its oscillating movement.
Paddy layer B is on the right swinging downward side, and mixed rice layer C is in the middle.
The structure is such that the water is separated and concentrated and flows downstream.

In addition, a brown rice partition plate 45 for separating the brown rice layer A and the mixed rice layer C and a partition plate 46 for separating the mixed rice layer C and the paddy layer B are provided at the downstream end of the sorting plate 3. The brown rice group separated by 45 is transferred to the brown rice gutter 49 of the discharge gutter 6 via each downstream guide plate 47, 48a, and the mixed rice group separated by the brown rice partition plate 45 and paddy partition plate 46 is transferred to each downstream guide plate. 48
b, to the mixed rice gutter 51 of the discharge gutter 6 via 50a,
Furthermore, the rice grains separated by the rice partition plate 46 are dropped into the rice paddy gutter 52 of the discharge gutter 6 via the downstream guide plate 50b,
It is configured to be taken out into the delivery chute 7.

Furthermore, a fixed mounting plate 5 is provided at the upper end of the frame 44.
3, a paddy sensor 54, which is a photoelectric grain sensor for detecting paddy, is installed on the mounting plate 53 through a long hole 55 and a set bolt 56, so that it can be moved left and right. A paddy separation interval W is provided from the end to the brown rice side, and the sensor 54
The grains to be sorted flowing down the boundary D between the paddy layer B and the mixed rice layer C at the top of the sorting plate 3 are irradiated with light from the sensor 54 and the reflected light is received, thereby separating brown rice and paddy. It is configured to detect the amount of mixed paddy from the difference in reflection between the two.

On the other hand, the brown rice gutter 49 and the mixed rice gutter 5 are connected to the brown rice drop guide port 58 formed by the guide plate 47 and the grain guide plate 57 below the brown rice side of the brown rice partition plate 45.
A switching shutter 59 that can be freely switched to a rotary shaft 60
The switching operation is performed by a handle 61 or a solenoid 62.

Next, as shown in FIGS. 1, 6, and 7,
In the figure, 63 is a hulling machine installed in parallel with the swing sorter 1, and 64 is a hulling section of the hulling machine 63, which includes a hopper 65 into which paddy is input, and a rice huller installed in the lower part of the hopper 65. In addition, 68 in the figure is a winnowing section on which the hulling section 64 is placed, and a mixed rice thrower 69 that takes out mixed rice with paddy mixed in with brown rice, and It is equipped with a dust suction/discharge fan 70 that separates and takes out rice grains, etc. After drying the rice grains after removing straw waste etc. through a rough sorting operation, the rice grains are fed into the hopper 65 via the supply chute 71, and the rice grains are continuously harvested. While performing the sliding operation, the tip of the mixed rice thrower 69 is placed facing the mixed rice tank 4,
This is to feed the grain after shedding to the oscillating sorter 1.
The main shaft 72 of the one roll-off part 67 is supported by the case 73 of the roll-off part 64, and the sub-shaft 74 of the other roll-off part 66 is supported by the gap setting links 75, 75. and the main shaft 7
The main shaft gear 76 and the counter shaft 74 are attached to one end of 2.
A countershaft gear 77 attached to one end of the first and second
The rotation of the main shaft gear 76 is transmitted to the first and second transmission gears 7 by interlocking them through transmission gears 78 and 79.
8 and 79 to transmit the signal to the subshaft gear 77.

The second transmission gear 79 is attached to a fulcrum shaft 80 that is fixedly supported on the case 73.
One end of left and right gap setting links 75, 75 supporting the sub-shaft 74 is swingably supported at both ends, and one end of the roll release 66 is swingably supported via the sub-shaft 74 about this fulcrum shaft 80. each roll 66,
67, each roll 66, 6
It is configured to adjust the removal gap 81 of 7.

Further, a gap adjusting member is attached to the distal end of one gap setting link 75 whose base end is swingably supported by the fulcrum shaft 80 and which supports the subshaft 74 in the middle via an engaging member 82 and a screw shaft 83. An output shaft 85 of a gap motor 84 is connected to the fulcrum shaft 8, and a potentiometer 87, which is an angle detector that detects the amount of swing displacement of the gap setting link 75, is connected to the case 73 via a bracket 86.
It is installed on top of 0.

FIG. 8 is a control circuit diagram of the inclination angle motor 15 and the gap motor 84, and as shown in FIG. limit switches 88 and 89 that detect α displacement; and a potentiometer that is a sorting angle sensor that is attached to the rotating support shaft 20 that rotates in conjunction with the first rocking plate 19 and detects the amount of tilt angle α displacement of the rocking sorting plate 3. In addition to being provided with a meter 90, it also includes a light amount regulator 91 for manually setting the reference value of the tilt angle α, and a tilt angle adjustment circuit 92 that detects the output difference of the paddy sensor 54 and outputs a forward/reverse signal for the tilt angle motor 15,
connecting the adjustment circuit 92 to the tilt angle motor 15 via the tilt angle reduction and tilt angle increase circuits 93, 94 and the limit switches 88, 89;
When the amount of light detected by the sensor 54 increases or decreases depending on the proportion of paddy mixed in, and a difference in light amount occurs between the amount of light and the reference amount of light set by the regulator 91, the adjustment circuit 92 sends a forward/reverse signal to the motor 15. output,
The regulator 9 is adjusted by driving the motor 15 in forward and reverse directions as appropriate.
The inclination angle α of the swing sorting plate 3 is automatically adjusted so that the reference light amount of 1 and the detected light amount of the sensor 54 match, and the inclination angle motor 15 is operated based on the output of the paddy sensor 54 to shake the rice. The width of the paddy layer B on the upper surface of the dynamic sorting plate 3 is made to match the paddy separation interval W of the sensor 54, and the width of the paddy layer B is kept substantially constant.

Also, the removal gap 81 of the above-mentioned removal rolls 66, 67
The controller 95 and the potentiometer 8 are connected in parallel with the output of the potentiometer 90 which is linked to the adjustment of the tilt angle α of the swinging sorting plate 3 by the tilt angle motor 15.
7 and outputs a forward/reverse signal for the gap motor 84, and the control circuit 96 is connected to the gap motor 84 via gap reduction and gap expansion circuits 97 and 98. , based on the output of the potentiometer 90, a gap motor 84 is driven in conjunction with the adjustment operation of the inclination angle α of the oscillating sorting plate 3, and the gap removal 81 of the removal rolls 66, 67 is adjusted by the motor 84. It is formed so as to change the

The present embodiment is constructed as described above, and the paddy fed into the hopper 65 via the supply chute 71 is removed by the removal rolls 66 and 67, and the removed rice is passed through the wind selection section 68. The selected and wind-selected paddy hulls are discharged outside the machine by the dust suction and exhaust fan 70, and the wind-selected mixed rice is transferred to the mixed rice tank 4.
When the grains to be sorted after hulling are fed from the mixed rice tank 4 to each sorting plate 3 through the supply tank 5 through the mixed rice thrower 69, the grains to be sorted after hulling are fed into the mixed rice thrower 69 through the feed tank 5, and the grains to be sorted after hulling are fed into the mixed rice thrower 69 through the supply tank 5, and then the grains to be sorted after hulling are fed to each sorting plate 3 from the mixed rice tank 4 through the supply tank 5. , the brown rice layer A is agitated by the rocking motion of the sorting plate 3 and the rough sorting surface of the sorting plate 3, and the brown rice layer A is on the shaking side at the upper end of the inclination angle α, and the brown rice layer A is on the shaking side at the upper end of the inclination angle α. The paddy layer B is sorted so that the mixed rice layer C is concentrated in these intermediate areas, and these are separated into brown rice, mixed rice, and paddy by the partition plates 45 and 46 provided at the end of the flow and taken out. It is something.

In the middle of the oscillating sorting work, as the width of the paddy layer B becomes smaller than the paddy separation interval W, the proportion of unpolished rice detected by the paddy sensor 54 increases, and the output of the paddy sensor 54 becomes smaller. The inclination angle motor 15 is operated via the inclination angle motor 15 to make the inclination angle α of the swinging sorting plate 3 gentler, thereby promoting the feeding action of the sorting plate 3 to the swinging side and increasing the width of the paddy layer B. on the other hand,
As the width of the paddy layer B becomes larger than the paddy separation interval W, the proportion of paddy detected by the paddy sensor 54 increases, and the paddy sensor 5
4 increases, the inclination angle α of the oscillating sorting plate 3 is sharply increased via the inclination angle motor 15 in the opposite direction to the above, and the feeding action of the oscillating sorting plate 3 to the up-swinging side is reduced to reduce the width of the paddy layer B. The sorting plate 3
The width of the paddy layer B on the upper surface is kept substantially constant to match the paddy separation interval W, and the brown rice layer A, the paddy layer B, and the mixed rice layer C are formed corresponding to each partition plate 45, 46. Furthermore, when the tilt angle α of the swinging sorting plate 3 is changed by the tilt angle motor 15, the tilt angle α of the sorting plate 3 is changed via the first swing plate 19 and the rotating support shaft 20 which are interlocked with the tilt angle motor 15. is detected by the potentiometer 90, and when the output of the potentiometer 90 increases or decreases by more than the dead band width of the interval adjuster 95, the interval motor 84 is adjusted to the correct position via each circuit 96, 97 or each circuit 96, 98. Then, the gap setting link 75 is oscillated and the respective unrolled rolls 66 and 67 are moved toward and away from each other, and the outputs of the regulator 95 and the potentiometer 87 are made to match the outputs of the potentiometer 90. The motor 84 is stopped and the removal gap 81 between the rolls 66, 67 is increased or decreased, and as described above, the removal rate is kept approximately constant based on the sorting situation, and the sorting action is stabilized.

As shown in FIG. 8, a timer 99 is connected to the escape ratio adjustment circuit 96, and changes in the output of the potentiometer 90 are intermittently detected via the timer 99. 84 is driven intermittently, and the time delay in the selection action relative to the release action is absorbed by the timer 99, thereby preventing malfunctions due to the time delay in each action.
It is also possible to adjust the clearance 81 in stages by using a step motor as the clearance motor 84. Further, in the above embodiment, the unrolling 6
Although the evacuation rate was changed by adjusting the gap between the rolls 66 and 67, the evacuation pressure of each roll 66 and 67 can also be adjusted in the same manner as described above.

As is clear from the above embodiments, the present invention provides a grain sensor such as a paddy sensor 54 that detects the separation status of grains to be sorted on the upper surface of the oscillating sorting plate 3;
The angle adjusting member 15 is operated based on the output of the grain sensor 54 to keep the width of the paddy layer B on the upper surface of the swinging sorting plate 3 substantially constant. In a structure that maintains
A sorting angle sensor such as a potentiometer 90 for detecting the amount of displacement of the oscillating sorting plate 3 by the angle adjustment member 15 is attached, and the operation is linked to the angle adjustment operation of the oscillating sorting plate 3 based on the output of the sorting angle sensor 90. This is configured to drive a gap adjustment member such as a gap motor 84 between the derolls 66 and 67, and it is possible to easily obtain the gap (removal pressure) between the derolls 66 and 67 that is suitable for the properties of the paddy. In addition, by improving the removal rate, the angle of the swinging sorting plate 3 can be properly adjusted, and the removal and sorting operations can be performed continuously and stably, improving the sorting efficiency, especially for paddy. It has remarkable effects such as being able to handle it safely with simple adjustment operations even if the properties of the parts are different.

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing one embodiment of the present invention;
Figure 2 is a plan view of the oscillating sorter, Figure 3 is a front view of the same, Figure 4 is an enlarged front view of its main parts, Figure 5 is an enlarged side view of the main parts, and Figure 6 is a FIG. 7 is an enlarged plan view of the main parts of the sliding machine, FIG. 7 is an enlarged front view of the main parts, and FIG. 8 is a control circuit diagram of the tilt angle motor and the gap motor. 3...Sorting plate, 15...Inclination angle motor (angle adjustment member), 54...Paddy sensor (grain sensor), 6
6, 67... De-rolling, 84... Gap motor (gap adjustment member), 90... Potentiometer (sorting angle sensor), B... Rice layer.

Claims (1)

[Claims] 1. A grain sensor that detects the separation status of grains to be sorted on the upper surface of a swinging sorting plate, and an angle adjustment member that adjusts the angle of the swinging sorting plate, and the angle adjustment member adjusts the angle based on the output of the grain sensor. is operated to keep the width of the paddy layer on the upper surface of the oscillating sorting plate substantially constant, a sorting angle sensor is installed to detect the amount of displacement of the oscillating sorting plate by the angle adjusting member, and based on the output of the sorting angle sensor. 1. A rice hulling sorting device characterized in that the unrolling gap adjusting member is driven in conjunction with the angle adjusting operation of the swinging sorting plate.