JP6939632B2 - Paddy sorter - Google Patents

Description

The present invention relates to a rice husk sorter that removes rice husks from grains to take out brown rice.

The rice huller has a rice husk part that removes rice husks from grains, a wind selection part that wind-selects rice husks from mixed rice after rice husk, and a mixed rice sorting part that sorts brown rice from mixed rice. Take it out of the machine and pack it in a bag.

The wind selection unit sucks and discharges the rice husks from the mixed rice with the suction air of the suction fan, but adjusts the suction wind so that the brown rice is not sucked together with the rice husks.

For example, in the rice huller described in Patent Document 1, a large amount of rice husks and brown rice are generated at the start of rice husks when a large number of grains are supplied to the grain hopper, so the suction wind of the suction fan is strengthened to suck a large amount of rice husks. However, when the grain supply to the grain hopper stabilizes, the rotation of the suction fan is reduced to the standard and the suction air is controlled to stabilize, so that the amount of brown rice that is sucked out of the machine together with the rice husks is reduced. The technology to do is used.

Japanese Unexamined Patent Publication No. 8-2900069

In the above-mentioned conventional technique, consideration is given to improving the rice husk exclusion rate at the start of hulling, but when the grain supply is stable, the suction fan is normally rotated and sucked with the same rotation until the end of hulling. Since the fan is driven, when the amount of mixed rice after hulling decreases, the suction wind is too strong and more brown rice is sucked together with the rice husks and discharged.

According to the present invention, in a rice husk sorter that removes rice husks from mixed rice emitted from a rice husk portion by suction air from a suction fan, the amount of brown rice discharged to the outside of the machine together with the rice husks is reduced to obtain a rice husk sorter with a high yield. Is the subject.

The above-mentioned problem of the present invention is solved by the following technical means.

The invention of claim 1 is to provide a rice husk portion 1 for sliding grains, a wind selection unit 2 for wind-selecting rice husks from the mixed rice emitted from the rice husk portion 1 with a suction fan 13, and a mixed rice tank 24 for temporarily storing mixed rice. In the rice husk sorter provided, the brown rice is sorted by the mixed rice sorting unit 3 which receives the mixed rice from the mixed rice tank 24 and swings and sorts the rice, and takes it out of the machine.
The paddy portion 1 is provided with a grain hopper 6, a pair of left and right paddy rolls 7, 7, and a paddy shutter valve 31 at the lower part of the grain hopper 6.
Sensors SE1 and SE2 for detecting the absence of grain in the grain hopper 6 are provided.
A circulation / discharge switching valve 36 for switching the brown rice sorted by the mixed rice sorting unit 3 to the in-flight circulation side or the out-of-machine take-out side is provided.
The rotation of the suction fan 13 is gradually reduced from the high rotation speed F1, the standard rotation speed F3, the high rotation speed F1, to the standard rotation speed F3, the gradually decreasing rotation speed region F2, and the low rotation speed F4 lower than the standard rotation speed F3. The rotation speed can be adjusted to an extremely low rotation speed F5, which is lower than the low rotation speed.
When the paddy shutter valve 31 is in the open adjustment state and the circulation / discharge switching valve 36 is held in the circulation side switching state and the circulation paddy sorting work is executed, the rotation of the suction fan 13 is increased. The rotation speed is set to F1, and as the paddy work is continued, rotation is performed in the gradually decreasing rotation range F2.
When a set amount or more of mixed rice is accumulated in the mixed rice tank 24, the circulation / discharge switching valve 36 is switched from the circulation side to the discharge side to shift to the discharge work of the selected finished brown rice and the suction fan 13. The rotation is defined as the standard rotation speed F3.
When the sensors SE1 and SE2 detect that the grain hopper 6 has no grain, the circulation / discharge switching valve 36 is switched from the discharge side to the circulation side to shift to the residual rice processing step, and the rotation of the suction fan 13 is lowered. Let the rotation speed be F4
When the residual rice treatment step is completed, the circulation / discharge switching valve 36 is switched from the circulation side to the discharge side to shift to the out-of-machine discharge of the residual rice-treated grains, and the rotation of the suction fan 13 is changed to the low rotation speed F4. The paddy sorting machine is characterized by having an extremely low rotation speed F5, which is even lower than that.
The invention of claim 2 is a mixing portion 1 for rubbing grains, a wind selecting portion 2 for wind-selecting rice husks from the mixed rice coming out of the paddy portion 1 with a suction fan 13, and a mixing that raises and lowers according to the amount of accumulated mixed rice. It is composed of a rice tank 24, a mixed rice sorting unit 3 that receives mixed rice and swings and sorts it, and a brown rice frying machine 5 that takes out the sorted brown rice to the outside of the machine. In a paddy sorting machine that sucks dust from the brown rice frying machine 5 through a communicating dust collecting cylinder 66, the opening degree of a dust collecting valve 67 provided in the dust collecting cylinder 66 is adjusted in conjunction with the raising and lowering of the mixed rice tank 24. It is a paddy rice sorting machine characterized by.
The first invention related to the present invention is a mixing of a rice husk portion 1 for sliding grains, a wind selection unit 2 for wind-selecting rice husks from the mixed rice emitted from the rice husk portion 1 with a suction fan 13, and a mixed rice temporarily stored. In a rice husk sorter in which a rice tank 24 is provided and brown rice is sorted by a mixed rice sorting unit 3 which receives mixed rice from the mixed rice tank 24 and swings and sorts the rice and takes it out of the machine, the suction fan 13 is rotated. It is characterized by being adjustable to a high rotation speed F1, a standard rotation speed F3, a gradually decreasing rotation region F2 that gradually decreases from the high rotation speed F1 to the standard rotation speed F3, and a low rotation speed F4 lower than the standard rotation speed F3. It is a rice husk sorter.

A second invention related to the present invention is characterized in that when the grain presence / absence sensor SE1 provided in the paddy portion 1 detects a stoppage of the supply of grains, the suction fan 13 is driven at the low rotation speed F4. and hulling sorter first invention relating to the present invention to.

A third invention related to the present invention is the low rotation speed F4 when the circulation / discharge switching valve 36 provided in the bottom mixed rice take-out trough 22 of the mixed rice sorting unit 3 is opened to allow brown rice to flow into the brown rice flow path 21. It is the paddy rice sorting machine of the first invention related to the present invention, which is characterized by having an extremely low rotation speed F5 which is even lower than that of the present invention.

In the fourth invention related to the present invention, a wind selection unit 2 for wind-selecting rice husks from the mixed rice coming out of the paddy unit 1 with a suction fan 13 and a mixed rice tank 24 for temporarily storing the mixed rice are provided, and the mixed rice tank is provided. In a paddy machine that adjusts the opening degree of the paddy shutter valve 31 of the paddy sliding portion 1 according to the accumulation condition of 24, an outside air introduction port 62 is provided in the suction case 61 of the suction fan 13, and the opening of the outside air introduction port 62 is adjusted. The paddy sorting machine is characterized in that the valve 63 and the paddy shutter valve 31 are interlocked with each other.

A fifth invention related to the present invention includes a paddy section 1 that slides grains, a wind-selection section 2 that wind-selects rice husks from the mixed rice that comes out of the paddy section 1 with a suction fan 13, and a pooled amount of mixed rice. It is composed of a mixed rice tank 24 that moves up and down, a mixed rice sorting unit 3 that receives mixed rice and swings and sorts it, and a brown rice frying machine 5 that takes out the sorted brown rice to the outside of the machine. In a paddy sorting machine that sucks dust from the brown rice frying machine 5 through a dust collecting cylinder 66 leading to the grain machine 5, the opening degree of a dust collecting valve 67 provided in the dust collecting cylinder 66 in conjunction with raising and lowering the mixed rice tank 24. It is a paddy rice sorting machine characterized by adjusting.

In the present invention of claim 1, in the wind selection unit 2, at the stage where a large amount of rice husks are generated at the start of hulling, the rotation of the suction fan 13 is set to a high rotation speed F1 to efficiently separate and discharge the rice husks, and the amount of grain supplied. In a stable state, the rice husks are separated at the optimum standard rotation speed F3, and at the initial stabilization stage from the start of hulling to stable supply, the suction fan 13 is operated in the gradual decrease rotation region F2 according to the decrease in the amount of grain supply. At the end stage of hulling, the suction fan 13 is driven at a low rotation speed F4, so that the brown rice is discharged together with the rice husks together with the rice husks. This prevents this and sucks the rice husks with the optimum suction wind, so the yield of brown rice is not reduced.
In the present invention of claim 2, the dust generated in the machine of the paddy sorting machine is discharged from the brown rice frying machine 5 to the outside of the machine by the suction fan 13 through the dust collecting cylinder 66, but is collected in the mixed rice tank 24. Since the opening degree of the dust suction valve 67 is adjusted according to the amount of rice to adjust the dust suction force by the suction fan 13, the amount of brown rice discharged to the outside of the machine together with the dust can be reduced.
In the first invention related to the present invention, in the wind selection unit 2, the rotation of the suction fan 13 is set to a high rotation speed F1 at the stage where a large amount of rice husks are generated at the start of hulling, and the rice husks are efficiently separated and discharged to efficiently separate and discharge the rice husks. When the supply amount of rice is stable, the rice husks are separated at the optimum standard rotation speed F3, and at the initial stabilization stage from the start of hulling to the stable supply, suction is performed in the gradual decrease rotation range F2 according to the decrease in the supply amount of grains. The fan 13 is driven, and the amount of mixed rice rubbed is reduced when the grain supply is finished. At the end stage of hulling, the suction fan 13 is driven at a low rotation speed F4. Since it prevents the rice husks from being discharged and sucks the rice husks with the optimum suction air, the yield of brown rice is not reduced.

In the second invention relating to the present invention, in addition to the effect of the first invention relating to the present invention, grains presence sensor SE1 provided on hulling unit 1 detects the end of the grain supply, suction fan Since 13 is driven at a low rotation speed F4, the hulling end process can be automated.

In the third invention relating to the present invention, in addition to the effect of the first invention relating to the present invention, the brown rice open the circulation / discharge switching valve 36 etc. N chaff殆is when flowing brown rice channel 21 Since it is in a state of being lost, the suction fan 13 sucks and discharges dust and the like with an extremely low rotation speed F5, and the brown rice is not discharged to the outside of the machine.

In the fourth invention related to the present invention, the opening degree of the opening adjusting valve 63 provided in the outside air introduction port 62 of the suction case 61 is changed according to the adjustment of the grain supply amount of the rice husk shutter valve 31 to suck the suction fan 13. Since the air volume can be adjusted, the rice husk suction is suitable for the amount of mixed rice generated, and the amount of brown rice that is mixed with the rice husk and discharged can be reduced.

In the fifth invention related to the present invention, the dust generated in the machine of the paddy sorting machine is discharged from the brown rice frying machine 5 through the dust collecting cylinder 66 to the outside of the machine by the suction fan 13, but the mixed rice tank 24 Since the opening degree of the dust suction valve 67 is adjusted according to the amount of mixed rice accumulated in the rice and the dust suction force by the suction fan 13 is adjusted, the amount of brown rice discharged to the outside of the machine together with the dust can be reduced.

It is the whole straight side view of the paddy sorter. It is a top view which shows the transmission structure of a paddy sorter. (A) Interlocking-related perspective view of the mixed rice tank and the paddy shutter valve, and (b) perspective view of the circulation / discharge switching valve. It is a front view of the operation panel. It is the whole perspective view of the paddy sorter. (A), (b) is a front view of the operation lever. It is a control block diagram. It is a flowchart diagram. It is a flowchart diagram. It is a side view of the suction fan belt transmission device. It is a rotation speed fluctuation diagram of a suction fan.

Hereinafter, the present invention will be described based on the examples shown in the drawings.

First, the overall configuration of the paddy sorting machine according to the embodiment of the present invention will be described with reference to FIG.

The paddy sorting machine includes a paddy section 1 arranged on the upper left side of the machine body, a wind sorting section 2 arranged on the left and right center parts, and a swing sorting plate arranged on the right side of the machine body. A type mixed rice sorting unit 3, a mixed rice frying machine 4 for frying the mixed rice selected by the mixed rice sorting unit 3, and a brown rice frying machine 5 for taking out the finished brown rice of the mixed rice sorting unit 3 to the outside of the machine. It is composed of a paddy rice frying machine 27 and the like for frying and reducing unpolished rice sorted by the mixed rice sorting section 3 to the paddy section 1. A brown rice tank 65 for temporarily storing brown rice is provided above the brown rice frying machine 5, and the inside of the brown rice tank 65 and the suction case 61 of the suction fan 13 are communicated with each other by a dust collecting cylinder 66 to suck dust in the brown rice tank 65. Will be done. The dust exhaust tube 66 is provided with a dust suction valve 67 that opens and closes to adjust the dust absorption and wind power. The dust suction valve 67 may be provided in the frying cylinder of the brown rice frying machine 5, but it must be shaped so that dust does not collect.

The paddy slide portion 1 is configured in a paddy roll type, and is a grain hopper 6, a pair of left and right paddy rolls 7, 7, and a vibration type transfer shelf 8 provided below the paddy rolls 7, 7. It is composed of such things. The paddy supplied to the grain hopper 6 is padded with paddy rolls 7 and 7 to form mixed rice of paddy and brown rice, which is dropped and supplied to the transfer shelf 8 and transferred to the lower right side by the vibrating transfer shelf 8. It is supplied to the sorting start side of the lower part of the wind sorting unit 2.

The wind selection unit 2 includes a wind selection box body 9, a selection air passage 10 configured in the wind selection box body 9 along the vertical direction, and rice provided below the middle part of the selection air passage 10. It is composed of a receiving trough 11, a receiving trough 12 provided on the lower starting end side of the sorting air passage 10, a suction fan 13 arranged on the upper terminal side of the sorting air passage 10, a dust collecting cylinder 14 and the like. , The mixed rice of unscraped rice and brown rice selected by the wind in the receiving tray 12 is fried by the mixed rice fried rice machine 4 and supplied to the mixed rice tank 24, and light rice husks and the like are sucked and discharged from the dust cylinder 14 to the outside of the machine. Will be done.

Next, the swing sorting type mixed rice sorting unit 3 will be described.

The multi-stage rocking sorting plate 15 has irregularities for sorting formed on the plate surface, one side in the vertical direction is the high supply side, the other side is the low discharge side, and one side in the horizontal direction orthogonal to the vertical direction. The rocking sorting plate 15 is tilted in both the vertical and horizontal directions, with the side as the high swinging side and the other side in the horizontal direction as the low swinging side, and the rocking sorting plate 15 is tilted up and down in the horizontal direction by a swinging device (not shown). It is configured to swing back and forth.

The mixed rice is supplied to the rocking sorting plate 15 from the mixed rice tank 24 arranged above the rocking sorting plate 15 via the distribution supply gutter 16 and the distribution case 17.

A paddy discharge port is cut out in the discharge side portion of the side wall on the swinging side of the rocking sorting plate 15, and the sorting paddy is taken out to the swinging side and passed through the paddy reduction flow path 29 to the paddy grain raising machine 27. It is a configuration to be supplied.

The mixed rice supplied to the rocking sorting plate 15 has a large / small grain shape, a large / small specific gravity, a large / small friction coefficient, etc. Large-sized and light-density paddy is sorted by drift distribution on the swaying side, and mixed rice of paddy and brown rice that is not separated is distributed in the middle part. Then, these sorted grains are separated and taken out by a brown rice partition plate 18 and a paddy partition plate 19 provided on the discharge side of the swing sorting plate 15.

The taken out finished brown rice is taken out of the machine via a brown rice take-out gutter 20, a brown rice flow path 21, and a brown rice frying machine 5. Further, a circulation / discharge switching valve 36 is provided in the mixed rice take-out gutter 22 that receives the sorted and mixed rice that has been taken out, and when the circulation / discharge switching valve 36 is closed, the sorted and mixed rice flows through the mixed rice flow path 23. It is taken out to the receiving gutter 12 and re-sorted to the rocking sorting plate 15 via the mixed rice frying machine 4, the mixed rice tank 24, the distribution supply gutter 16, and the distribution case 17, but the hulling is completed. When approaching, the circulation / discharge switching valve 36 is opened and the brown rice remaining after re-sorting is flowed into the brown rice flow path 21.

Further, among the sorted paddy separated by drifting to the swinging side of the rocking sorting plate 15, those flowing down along the side wall on the swinging side are taken out from the paddy discharge port into the paddy reduction flow path 29, and also on the swinging side. The material that has flowed down from the side wall of the rocking sorting plate 15 is partitioned by the paddy partition plate 18 from the discharge side end of the rocking sorting plate 15, and is taken out to the paddy gutter 25. The sorted paddy taken out in this way is fried and reduced to the paddy section 1 via the paddy flow path 26 and the paddy fried grain machine 27, and the paddy is rubbed again. The rice sorted by the wind sorting unit 2 into the rice gutter 11 is sent to the paddy grain frying machine 27, and is fried and reduced to the paddy section 1 together with the sorting paddy of the mixed rice sorting section 3.

Next, a drive configuration for each part of the paddy sorter by the main motor M1 will be described with reference to FIG.

A main motor M1 is arranged below the paddy portion 1, and power is transmitted from the main motor M1 to the paddy rolls 7 and 7 via the paddy belt transmission device 46 and the paddy input shaft 1a. Vibration power is transmitted from the paddy input shaft 1a to the transfer shelf 8 via the transfer belt transmission device 47 and the transfer input shaft 8a. Power is transmitted from the transfer input shaft 8a to the mixed rice frying machine 4 and the mixed rice racen 12a via the mixed rice frying belt transmission device 48 and the mixed rice frying input shaft 4a.

Further, the fried grain power is transmitted from the mixed rice fried grain input shaft 4a to the paddy fried grain machine 27 via the paddy fried grain belt transmission device 49 and the paddy fried grain input shaft 27a. Power is transmitted from the paddy grain input shaft 27a to the suction fan 13 via the suction fan belt transmission device 50 and the suction fan input shaft 13a. Power is transmitted from the paddy fried grain input shaft 27a to the brown rice fried grain machine 5 via the brown rice fried grain machine belt transmission device 51 and the brown rice fried grain machine input shaft 5a. Power is transmitted from the brown rice fryer input shaft 5a to the swing drive device (not shown) of the swing sorting plate 15 via the swing belt transmission device 52 and the swing crank shaft 53.

As shown in FIG. 10, the suction fan belt transmission device 50 winds the belt 57 around a fan speed change pulley 13b including a fan drive pulley 27b fixed to the paddy grain input shaft 27a and a split pulley mounted on the suction fan input shaft 13a. The fan speed change motor M4 moves the speed change tension pulley 58 to change the pulley width of the fan speed change pulley 13b, thereby changing the rotation speed of the suction fan 13.

The rotation speed of the suction fan 13 is driven by a high rotation speed F1 when there are a large number of grains supplied at the beginning of rubbing, and is driven by a standard rotation speed F3 when stable paddy rubbing continues, and the supply of paddy shifts from a large amount to a standard. When the rice is driven in the gradually decreasing rotation speed range F2 that gradually changes from the high rotation speed F1 to the standard rotation speed F3, the grain supply to the grain hopper 6 is stopped and the supply of mixed rice in the paddy portion 1 is also reduced. At the stage, it is driven by the low rotation speed F4, and when the paddying end processing is completed and the circulation / discharge switching valve 36 is set to the brown rice discharge side, the controller 55 is input to drive at an extremely low rotation speed F5 which is even slower than the low rotation speed F4. The fan speed change motor M4 is controlled by the detection signal of each detection sensor.

The control of the fan transmission motor M4 by the controller 55 is performed as follows. First, when the operation start switch SW1 is turned on and the operation lever 32 is operated and the operation lever position detection sensor SE7 detects the initial position, the high rotation speed F1 is set, and when a predetermined time elapses from the start of operation, the rotation is gradually reduced as the gradually decreasing rotation range F2. Then, when the operation lever 32 is operated to the work position and the operation lever position detection sensor SE8 detects the work position, the standard rotation speed is set to F3, and the detected load current value of the load current sensor SE2 becomes equal to or less than a predetermined value or the grain hopper 6 is used. When the grain presence / absence sensor SE1 to be provided detects no grain, the rotation speed is set to low F4, and when the circulation / discharge switching valve 36 is operated to detect the discharge, the rotation / discharge switching valve (discharge) sensor SE6 is set to extremely low rotation speed F5. ..

Next, a related adjustment configuration of the paddy shutter valve 31 based on the degree of grain accumulation in the mixed rice tank 24 will be described with reference to FIG.

A paddy shutter valve 31 is provided below the grain hopper 6, and the paddy shutter valve 31 is pivotally supported so as to rotate around the shaft portion 31a of the paddy shutter valve 31. The shaft portion 32a of the operating lever 32 is arranged on the side of the shaft portion 31a of the paddy shutter valve 31 in an axially aligned state, and a flexible connecting means 33 is interposed between the shaft portion 31a and the shaft portion 32a. It is configured to be interlocked and connected with flexibility within a predetermined range, and to rotate and adjust the paddy shutter valve 31 by the operation lever 32.

That is, the first flexible arm 33a is attached to the end of the shaft portion 31a of the paddy shutter valve 31, the second flexible arm 33b is attached to the end of the shaft portion 32a of the operating lever 32, and the first flexible arm 33a and the second flexible arm 33b are attached. It is interlocked and connected with a long hole and a pin with a predetermined range of flexibility. Then, when the operating lever 32 is opened and closed around the shaft portion 32a, the paddy shutter valve 31 can be opened and closed via the first flexible arm 33a and the second flexible arm 33b.

Further, the mixed rice tank 24 is hung and supported so as to be movable up and down in the fried grain throwing portion 4b on the upper part of the mixed rice fried rice machine 4, and when a predetermined amount or more of grains are accumulated in the mixed rice tank 24 and become heavy, the mixed rice tank 24 Moves downward against the spring 34, and when the amount of grains becomes less than a predetermined amount, the spring 34 moves upward.

Then, a mixed rice tank upper limit sensor SE3 and a mixed rice tank lower limit sensor SE4 are provided on the side of the mixed rice tank 24, and when a predetermined amount or more of mixed rice is accumulated in the mixed rice tank 24 and the mixed rice tank 24 moves downward, the mixed rice is mixed. The tank upper limit sensor SE3 detects ON. When the amount of mixed rice in the mixed rice tank 24 is reduced to a predetermined amount or less and the mixed rice tank 24 moves upward, the mixed rice tank lower limit sensor SE4 detects ON.

Further, as shown in FIG. 3A, the mixed rice tank 24 and the paddy shutter valve 31 are interlocked and connected by the paddy shutter valve adjusting means 37 which is connected by a mechanical linkage. The paddy shutter valve adjusting means 37 is, for example, a guide rod 37a whose one end is connected to the mixed rice tank 24, a first fulcrum arm 37b which is pin-connected to the other end of the guide rod 37a, and a first fulcrum arm 37b. It is composed of an interlocking rod 37c pin-connected to the other end and a rotating arm 37d pin-connected to the other end of the interlocking rod 37c. The parts are connected by pins.

When a predetermined amount or more of grains accumulate in the mixed rice tank 24 and move downward, the paddy shutter valve 31 is closed and adjusted via the induction rod 37a, the first fulcrum arm 37b, the interlocking rod 37c, and the rotation arm 37d. .. Further, when the grain amount of the mixed rice tank 24 decreases below a predetermined amount and moves upward, the paddy shutter valve 31 is opened and adjusted via the induction rod 37a, the first fulcrum arm 37b, the interlocking rod 37c and the rotation arm 37d. Will be done. Therefore, the paddy sorting work can be smoothly performed while appropriately adjusting the amount of paddy grain without excess or deficiency.

The mixed rice is configured to constantly flow down from the grain flow port of the mixed rice tank 24, and the amount of outflow mixed rice is adjusted by a mixed rice control valve (not shown).

Further, as shown in FIG. 3B, a circulation / discharge switching valve 36 is provided in the sorting brown rice extraction section of the mixed rice sorting section 3, and the finished brown rice is driven in the machine by forward / reverse rotation drive of the circulation / discharge switching valve control motor M2. It is switched to the circulation side or to the outside take-out side.

Further, a circulation / discharge switching valve (circulation) sensor SE5 and a circulation / discharge switching valve (discharge) sensor SE6 for detecting the switching state of the circulation / discharge switching valve 36 to the circulation side or the discharge side are provided.

Further, the guide rod 37a is interlocked with the dust suction valve 67 of the dust discharge cylinder 66 by the wire 68, and when the guide rod 37a is lowered and the amount of mixed rice in the mixed rice tank 24 is increased, the dust exhaust air flowing through the dust discharge cylinder 66 is strengthened. Acts to close the dust suction valve 67.

In addition, in FIG. 3A, as another embodiment, an outside air introduction port 62 is provided in a suction case 61 surrounding the suction fan 13, and an opening adjusting valve 63 and the induction rod 37a provided in the outside air introduction port 62 are connected to a wire 60. In conjunction with this, when a large amount of mixed rice is accumulated in the mixed rice tank 24, the opening adjusting valve 63 is opened so that the suction fan 13 generates a large amount of suction air.

Further, a swing drive device 39 driven by the main motor M1 is provided below the swing sorting plate 15, a swing clutch arm 39b with a swing clutch pulley 39a is pivotally supported on the frame portion, and the operation lever 32 is provided with a swing clutch arm 39b. The other end of the swing clutch wire 40 to which one end is connected is connected to the swing clutch arm 39b, and the transmission belt of the swing drive device 39 is put into a tension transmission state or loosely cut in relation to the operation of the operation lever 32. It is configured to be in a state.

Further, as shown in FIG. 5, an operation panel 41 is provided above the wind sorting unit 2 in the center of the front of the paddy sorting machine, and an operation guide groove 44 is provided above the operation panel 41 so as to follow the left-right direction. An initial position 44a for start / stop operation is provided on the left side of the operation guide groove 44 near the paddy portion 1, and a work position 44b for operation during paddy operation is provided on the right side near the mixed rice sorting unit 3. The lever 32 is provided so as to be able to reciprocate and rotate left and right around the axis in the front-rear direction.

Next, the operation panel 41 will be described with reference to FIG.

The operation start switch SW1, the operation stop switch SW2, and the grain type selection switch SW3 are provided on the lower left side of the operation panel 41, and the roll gap adjustment switch SW4 and the paddy rolls 7 and 7 are adjusted on the lower right side. A portion 54 and a roll gap closing adjustment switch SW5 are provided.

Further, a main motor abnormality display unit 42 is provided on the upper left side of the operation panel 41, and the load current sensor SE2 detects the current value of the main motor M1 and displays the load state of the main motor M1.

An operation monitor display unit 43 is provided on the upper right side portion. The initial operation display unit 43a and the initial lamp La are provided on the left side of the operation monitor display unit 43, the paddy operation display unit 43b and the paddy work lamp Lb are provided on the right side portion, and the operation lever 32 is operated to the initial position 44a. The initial lamp La blinks, and when the operation lever 32 is operated to the work position 44b, the paddy work lamp Lb blinks.

Then, it is described that the work is stopped in the vicinity of the initial lamp La, and in the vicinity of the paddy work lamp Lb, the in-flight circulation paddy sorting work, the out-of-machine discharged paddy sorting work, and the remaining rice are described according to the contents of the paddy sorting work. The characters are displayed as paddy sorting work, small amount paddy sorting work, and wheat sorting work.

When the operation lever 32 is operated to the initial position 44a on the left side, the paddy shutter valve 31 of the grain hopper 6 is closed and adjusted, the swing clutch pulley 49a is in the clutch disengaged state, and the operation lever position detection sensor (initial position) SE7 is detected to be ON. The circulation / discharge switching valve 36 of the controller 55 is switched to the circulation side based on the circulation side switching command.

Further, when the operating lever 32 is operated to the working position 44b on the right side, the paddy shutter valve 31 of the grain hopper 6 is opened and adjusted, the swing clutch pulley 49a is in the clutch engaged state, and the operating lever position detection sensor (working position) SE8. Upon detection of ON, the circulation / discharge switching valve circulation side switching command of the controller 55 is held, the circulation / discharge switching valve 36 keeps the switching state to the circulation side, and then the mixed rice tank upper limit sensor SE3 is turned ON. When the set amount or more of mixed rice is accumulated in the mixed rice tank 24 (or, after a predetermined time elapses, the load current sensor SE2 detects the load current value of the main motor M1 which is equal to or more than the set value, and the paddy sorting work is continued. If), it is determined that the sorting brown rice discharge command condition is satisfied, and the circulation / discharge switching valve 36 is switched from the circulation side to the discharge side based on the circulation / discharge switching valve discharge side switching command of the controller 55 to finish the sorted brown rice. I am trying to shift to the work of the rice discharge process.

As shown in FIG. 7, the switch group and the sensor group are connected to the input side of the controller 55, and the motors and lamps are connected to the output side via a drive circuit.

Next, the control contents of the controller 55 will be described with reference to FIGS. 8 and 9.

The paddy sorter is energized and this control is started. At this stage, the operation lever 32 is located at the initial position 44a, the paddy shutter valve 31 of the grain hopper 6 is in the closed adjustment state, the swing clutch pulley 49a is in the clutch disengaged state, and the operation lever position detection sensor (initial position) SE7 is in the closed adjustment state. It is turned on, and the circulation / discharge switching valve 36 is switched to the circulation side based on the circulation side switching command of the controller 55.

Next, when the paddy is selected by the grain type selection switch SW3 (step S1) and then the operation start switch SW1 is turned on by the operator (step S2), the main motor M1 is driven and the circulation / discharge switching valve 36 switches to the circulation side. In this state, each part of the paddy sorter starts idle operation (step S3).

Next, the roll gap adjusting motor M3 is driven forward and reverse based on the roll gap initial setting command of the controller 55, and the initial adjustment setting of the roll gap of the paddy rolls 7 and 7 is executed (step S4). Next, when the initial gap setting control of the roll gap is completed, the paddy work lamp Lc blinks to display the operable state of the operation lever 32 to the work position 44b (step S5). Next, when the operating lever 32 is operated from the initial position 44a to the working position 44b by the operator, the paddy shutter valve 31 is in the open adjustment state, the swing clutch pulley 49a is in the clutch engaged state (step S6), and the circulation / discharge switching valve is opened. In No. 36, the circulation paddy sorting operation is executed while maintaining the circulation side switching state (step S7).

Next, it is determined whether or not a set amount or more of mixed rice has accumulated in the mixed rice tank 24 based on the detection value of the mixed rice tank upper limit sensor SE3 (step S8). The circulation / discharge switching valve 36 is switched from the circulation side to the discharge side based on the side switching command (step S9), and the process proceeds to the discharge operation of the selected finished brown rice (finished rice discharge step) (step S10).

Next, the process shifts from A in FIG. 8 to A in FIG. 9, and for example, it is determined whether or not the detected load current value of the load current sensor SE2 is equal to or less than a predetermined value (or the grain hopper grain presence / absence sensor SE1 is a grain. (Determining whether or not none was detected) (step S11), if Yes, the controller 55 determines that it is time to shift to the residual rice processing process based on the decrease in the amount of in-flight circulating grains, and shifts to the residual rice processing process. Based on the command, the circulation / discharge switching valve 36 is switched from the discharge side to the circulation side to shift to the residual rice processing step (step S12).

Next, when the residual rice processing process for the set time is completed (step S13), the controller 55 determines that the residual rice processing process is completed, and the circulation / discharge switching valve 36 is moved from the circulation side to the discharge side based on the residual rice processing process end command. It is switched and the out-of-machine discharge of the residual rice-treated grains is started (step S14). When the out-of-machine discharge work for a predetermined time is completed (step S15), the circulation / discharge switching valve 36 is switched from the discharge side to the circulation side based on the circulation / discharge switching valve circulation side switching command of the controller 55, and the next work start position is reached. It is switched and the control ends (step S16).
In the residual rice treatment step, for example, in the in-flight circulation state of the circulation / discharge switching valve 36, the total amount of residual grains is circulated in the machine a plurality of times for a predetermined time to turn the total amount of residual grains into brown rice, and then the circulation / discharge switching is performed. The valve 36 is switched from the in-flight circulation side to the out-of-machine discharge side, and the entire amount of residual grains is discharged to the outside of the machine to complete the process.

Next, the wheat sorting control will be described.

Wheat is selected by the grain type selection switch SW3 (step S21), and the operation start switch SW1 is turned on by the operator (step S22). At this stage, the operating lever 32 is in the initial position 44a, the paddy shutter valve 31 of the grain hopper 6 is in the closed adjustment state, the swing clutch pulley 49a is in the clutch disengaged state, and the operating lever position detection sensor (initial position) SE7. Is an ON state, and the circulation / discharge switching valve 36 is switched to the circulation side based on the circulation / discharge switching valve circulation side switching command of the controller 55. Next, the main motor M1 is driven, and each part of the paddy sorter starts idle operation (step S23).

Next, the roll gaps of the paddy rolls 7 and 7 are controlled to be widened based on the roll gap expansion control command of the controller 55, and even if the wheat passes through the roll gaps, it passes through without being deprived and the wind selection unit 2 The paddy work lamp Lb blinks based on the wheat sorting work enable command of the controller 55, and the out-of-sorting wheat discharge ready state is displayed (step S24). Next, when the operating lever 32 is operated from the initial position 44a to the working position 44b by the operator, the paddy shutter valve 31 is in the open adjustment state, the swing clutch pulley 49a is in the clutch engaged state, and the circulation / discharge switching valve 36 is on the circulation side. The switching state is maintained and the state shifts to the in-flight circulating wheat sorting state (step S25).

Next, when the set time elapses (step S26), the controller 55 determines that the in-flight circulation wheat sorting operation is stable, and the circulation / discharge switching valve 36 moves from the circulation side to the discharge side based on the circulation / discharge switching valve discharge side switching command. The switching is performed (step S27), and the process proceeds to the sorting wheat discharging wheat sorting operation (step S28).

Next, the transition from B in FIG. 8 to B in FIG. 9 is made, and then when the operator visually recognizes that there is no wheat to be sorted and the operation stop switch SW2 is turned on (step S29), the controller 55 performs the sorting wheat discharging operation. The circulation / discharge switching valve circulation side switching command is issued, the circulation / discharge switching valve 36 is switched from the discharge side to the circulation side, set to the next work start position, and the control ends (step S30).

In steps S29 to S30, the operation stop switch SW2 is turned on to determine the end of the wheat sorting and discharging work, but when the grain hopper's grain presence sensor SE1 detects no wheat or when the sorting wheat is discharged The operator may visually recognize that there is no wheat to be sorted and determine the end of the wheat sorting work by operating the operation lever 32 to the initial position 44a.

Further, an initial position 44a to be operated at the time of starting and stopping is provided at a portion near the paddy portion 1 on the left side of the operation guide groove 44, and a work position for paddy operation is provided at a portion near the mixed rice sorting portion 3 on the right side. 44b is provided, and the operation lever 32 is configured to be freely reciprocating and rotating left and right around the axis in the front-rear direction.

A discharge circulation selector switch SW6 is provided in the vicinity of the working position 44b of the operating lever 32. The circulation / discharge switching valve circulation side display lamp Lc is provided on the lower left side of the operation monitor display unit 43, and the circulation / discharge switching valve discharge side display lamp Ld is provided on the lower right side.

The discharge circulation changeover switch SW6 is connected to the input side of the controller 55, and when the discharge circulation changeover switch SW6 is turned ON while the operation lever 32 is being operated at the initial position 44a or the working position 44b, the controller 55 The circulation / discharge switching valve 36 is switched from the circulation side to the discharge side or from the discharge side to the circulation side based on the circulation / discharge switching valve switching command of the circulation / discharge switching valve circulation side indicator lamp Lc, circulation / discharge switching. The valve discharge side display lamp Ld blinks to display the switching status of the circulation / discharge switching valve 36.

By providing the discharge circulation changeover switch SW6 as described above, in the normal operation of the paddy sorting machine, the operation lever 32 is operated from the initial position 44a to the work position 44b to operate the circulation / discharge changeover valve 36 from the circulation side. Switching to the discharge side Although it is possible to shift from the circulating paddy sorting work to the discharged paddy sorting work by automatic operation, the swing sorting plate 15 of the mixed rice sorting unit 3 is in a state where the operating lever 32 is operated to the working position 44b. If the automatic switching condition from the circulation side to the discharge side of the circulation / discharge switching valve 36 is not satisfied even though the sorting state of the rice is stable, the sorting brown rice is sorted by operating the discharge circulation switching switch SW6 at the operator's discretion. It is possible to shift to the discharge paddy sorting work and perform efficient paddy work.

Further, the circulation / discharge switching valve 36 can be switched from the discharge side to the circulation side by operating the discharge circulation changeover switch SW6 at the operator's discretion in the switching state of the circulation / discharge switching valve 36 to the discharge side. It is possible to quickly prevent paddy from being mixed into the finished brown rice due to a sudden change in the sorting state of the sliding sorting machine.

Further, the discharge circulation changeover switch SW6 is arranged near the working position 44b provided near the mixed rice sorting unit 3 of the left and right long operation guide guide bodies 44c forming the operation guide groove 44. Therefore, the operator can operate the discharge circulation changeover switch SW6 while checking the sorting state of the swinging sorting plate 15 of the mixed rice sorting unit 3 nearby, and can quickly and easily respond to the sorting state.

The discharge circulation changeover switch SW6 is switchable when the operation lever 32 is operated to the working position 44b. That is, if it is configured to be switchable when it is in the initial position, it is possible to start the huller sorting work with the circulation / discharge switching valve 36 on the discharge side, and the mixed rice tank 24 is set even though the operator does not intend. This is because the finish discharge process becomes possible without waiting for the detection of the amount or more.

When the main motor M1 is stopped due to a power failure or the operator operating the operation switch SW1 during the finishing discharge process, the circulation / discharge switching valve 36 is temporarily switched from the discharge side to the circulation side when the main motor M1 is restarted. .. Then, when the mixed rice upper limit sensor SE3 detects that the mixed rice tank 24 contains a predetermined amount or more of the mixed rice after a lapse of a predetermined time (for example, after 30 seconds), the circulation / discharge switching valve 36 is moved from the circulation side to the discharge side. To switch to. As a result, it is possible to continue the smooth paddy sorting work while preventing the paddy from being mixed into the finished brown rice when the paddy is interrupted and restarted during the sorting work.

F1 High rotation speed F2 Gradual reduction rotation range F3 Standard rotation speed F4 Low rotation speed F5 Extremely low rotation speed SE1 Grain presence / absence sensor 1 Paddy part 2 Wind selection part 3 Mixed rice sorting part 13 Suction fan 21 Brown rice flow path 24 Mixed rice tank 31 Paddy shutter valve 36 Circulation / discharge switching valve 61 Suction case 62 Outside air introduction port 63 Opening adjustment valve 66 Dust exhaust cylinder 67 Dust absorption valve

Claims (2)

A rice husk (1) for rubbing grains, a wind selection part (2) for wind-selecting rice husks from the mixed rice coming out of the rice husk (1) with a suction fan (13), and a mixed rice tank for temporarily storing mixed rice ( In a rice husk sorter provided with 24), brown rice is sorted by a mixed rice sorting unit (3) that receives mixed rice from the mixed rice tank (24) and swings and sorts the rice, and takes it out of the machine.
The paddy portion (1) is provided with a grain hopper (6), a pair of left and right paddy rolls (7, 7), and a paddy shutter valve (31) at the bottom of the grain hopper (6).
Sensors (SE1, SE2) for detecting the absence of grain in the grain hopper (6) are provided.
A circulation / discharge switching valve (36) for switching the brown rice sorted by the mixed rice sorting unit (3) to the in-flight circulation side or the out-of-machine take-out side is provided.
The rotation of the suction fan (13) is gradually reduced from the high rotation speed (F1), the standard rotation speed (F3), the high rotation speed (F1) to the standard rotation speed (F3), and the gradually decreasing rotation region (F2). It is possible to adjust to a low rotation speed (F4) lower than the standard rotation (F3) and an extremely low rotation speed (F5) lower than the low rotation speed .
When the paddy shutter valve (31) is in the open adjustment state and the circulation / discharge switching valve (36) is in the circulation side switching state and the circulation paddy sorting operation is executed, the suction fan (13) is started. ) Is set to the high rotation speed (F1), and as the paddy work is continued, the rotation is performed in the gradually decreasing rotation range (F2).
When a set amount or more of mixed rice is accumulated in the mixed rice tank (24), the circulation / discharge switching valve (36) is switched from the circulation side to the discharge side, and the work shifts to the discharge work of the sorted finished brown rice. The rotation of the suction fan (13) is defined as the standard rotation speed (F3).
When the sensor (SE1, SE2) detects that the grain hopper (6) has no grain, the circulation / discharge switching valve (36) is switched from the discharge side to the circulation side to shift to the residual rice processing step and the suction fan. The rotation of (13) is defined as the low rotation speed (F4).
When the residual rice treatment step is completed, the circulation / discharge switching valve (36) is switched from the circulation side to the discharge side to shift to the out-of-machine discharge of the residual rice-treated grains, and the rotation of the suction fan (13) is rotated. A paddy rice sorting machine characterized in that the rotation speed is extremely low (F5), which is even lower than the low rotation speed (F4). The paddy part (1) that slides the grains, the wind selection part (2) that wind-selects the rice husks from the mixed rice that comes out of the paddy part (1) with a suction fan (13), and the amount of mixed rice that accumulates up and down. The suction fan (13) is composed of a mixed rice tank (24), a mixed rice sorting unit (3) that receives mixed rice and shake-sorts it, and a brown rice frying machine (5) that takes out the sorted brown rice to the outside of the machine. In a paddy sorter that sucks dust from the brown rice frying machine (5) through a dust collecting cylinder (66) leading from the brown rice frying machine (5), in conjunction with raising and lowering the mixed rice tank (24). A paddy rice sorting machine characterized in that the opening degree of a dust absorbing valve (67) provided in the dust collecting cylinder (66) is adjusted.

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