JPH04222673A - Wind power adjustment device for rice huller sorting machine - Google Patents

Abstract

PURPOSE:To provide an improved way to sort hulled rice by air blasting at an air sorting part B in the air sorting of the rice hulled at a rice hulling part 1, in either case where the rice hulls are discharged by the sorting air directly from a dust discharge cylinder 6 at an air sort ing part B or to a distant place from a dust discharge pipe for remote discharge use connected to the dust discharge cylinder 6. CONSTITUTION:A remote dust discharge cylinder 6a on the air exhausting side of a hulled rice air sorting passage 4 in a hulled rice sorting machine is so constructed as to be fitted with a hull receiving bag 35, the cylinder 6a through which a sorting air is passed is provided with first and second air pressure sensors 33 and 34 and, when the first and second air pressure sensors 33 and 34 detect that the hull receiving bag 35 is connected to the remote dust discharge cylinder 6a, the sorting air is regulated to be on the increasing side in operative association with such sensors. In either case with the remote dust discharge cylinder 6a or the hull receiving bag 35 installed, since the sorting air in the hulled rice air sorting passage 4 is increased, the sorting efficiency of the hulled rice can be improved.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention is applicable to a hulling section, a wind selection section for wind-selecting the fallen rice that has been hulled in the hulling section, and a wind-selecting section for converting the fallen rice that has been wind-selected in the wind-selection section into paddy or brown rice. This invention relates to a wind power adjustment device for a rice huller that separates and sorts rice.

0002

[Prior art] Hulling section, wind sorting section for wind-selecting the fallen rice that has been hulled in the hulling section, and hulling sorting for separating and sorting the fallen rice that has been wind-selected in the wind-selection section into paddy and brown rice. There is a chance. This conventional rice hulling and sorting machine separates the rice that has been hulled in the hulling section into rice husks and paddy in the wind sorting section.
The rice is separated by wind into brown rice and mixed rice, the rice husks are discharged from the dust pipe, and the remaining mixed rice is sent to a mixed rice sorting unit of the oscillating sorting plate type or rotating sorting tube type for sorting.

0003

[Problem to be solved by the invention] When carrying out hulling work using a conventional rice hulling sorter, when discharging the rice husks that have been wind-selected in the wind sorting section to the outside of the machine, it is necessary to directly discharge the rice husks from the dust exhaust pipe to the outside of the machine. When discharging rice husks, when attaching a rice husk storage bag to the tip of the dust exhaust tube and storing the rice husks in the rice husk storage bag, there are cases where a remote dust exhaust tube is connected to discharge dust far away. When storing the rice husks in a rice husk storage bag or discharging them remotely, the wind sorting force in the wind sorting section will be weaker than in the case of direct discharge, so the operator can increase the wind force in the wind sorting section. I had to. Therefore, the present invention uses a wind pressure sensor to detect whether or not a rice husk storage bag is attached to the dust exhaust tube of the wind sorting section or whether it is in a remote dust removal state, and then installs a rice husk storage device or remotely removes dust. In connection with the detection of the condition, the wind power is automatically adjusted to the increasing side.

0004

[Means for Solving the Problems] In order to solve the problems of the prior art, the present invention takes the following technical measures. That is, the present invention has a rice hulling section A that handles hulling;
A wind sorting part B wind-sorts the fallen rice that has been hulled in the hulling part A, and a hulling sorting machine that separates and sorts the fallen rice after the wind selection in the wind sorting part B into paddy and brown rice, The dust removal device 6 for discharging rice husks in the wind sorting section B is configured so that the rice husk storage device 35 can be attached to it, and a pressure air system that can detect the presence or absence of the connection of the rice husk storage device 35 is installed in the part through which the sorting air of the wind sorting section B passes. Sensors 33 and 34 are provided, and the pressure air sensor 3 detects the connection state of the rice husk storage device 35 to the dust removal device 6.
3 and 34, the wind-force regulating device for a rice hulling sorter is characterized in that, in relation to this, the sorting wind of the wind-selecting section B is adjusted to the increasing side.

[0005]

[Embodiment] First, the configuration of the embodiment will be explained. This hulling and sorting machine consists of a hulling section A that removes the hulls, a wind selection section B that wind-sorts the rice that has been hulled in the hulling section A, and a wind-selecting section B that separates the rice that has passed through the wind selection into paddy and brown rice. It consists of a mixed rice sorting section C that sorts the rice. The hulling section A is composed of a hulling section 1 consisting of a rice hopper 2, a pair of hulling rolls 3, 3, and the like. Reference numeral 4 denotes a wind-selecting path for the fallen rice that constitutes the wind sorting section B, in which the fallen rice from the husking section 1 is sorted by the sorting wind generated by the suction fan 5 in front, and the rice husks are removed from the suction fan 5. The mixed rice of brown rice and paddy is discharged to the outside of the machine through the dust exhaust pipe 6, and is supplied to the dropped rice receiving trough 7 below. The mixed rice that has fallen into the fallen rice receiving gutter 7 is fried by the mixed rice lifting machine 8 into the mixed rice hopper 9, and is conveyed from the mixed rice hopper 9 to the starting end of the supply gutter 14 in the rotary sorting cylinder 11. It is the composition.

10 is a sorting case, and this sorting case 1
0 has a supply side end (right side in Fig. 1) and a discharge side so that the rotary sorting cylinder 11, which has a large number of pot holes 11a, 11a, ... on its inner peripheral surface, can rotate around the horizontal axis. The end (left side in FIG. 1) is rotatably supported by drive rollers 12, 12. A supply gutter 14 with a feed helix 13 and a finishing rice gutter 16 with a finished rice helix 15 are horizontally suspended within the rotary sorting cylinder 11.

When disposing the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting cylinder 11, the supply gutter 14 is placed on the raking side of the rotary sorting cylinder 11, which rotates from the bottom to the top, as shown in FIG. In addition, the finishing rice gutter 16 is transferred to the rotating sorting cylinder 1.
The mixed rice scraped up low by the pot holes 11a, 11a, . The rice is transferred to the terminal end of the supply gutter 14, and the feed gutter 14 also functions as a mixed rice receiving gutter.

The discharge side end of the finishing rice gutter 16 is connected to a finishing rice receiving trough 19 via a finishing rice flow lower cylinder 17 and a finishing rice flow grain plate 18, and the brown rice is passed through the finishing rice flow lower cylinder 17 and the finishing rice flow. While falling from the grain plate 18 to the finished rice receiving trough 19, it is wind-selected,
The brown rice flowing down into the finished rice receiving trough 19 is taken out of the machine via the finished rice lifting machine 20. Rotary sorting cylinder 11
The grains mainly composed of unhulled rice after sorting flowed to the discharge side end of the husks fall into the lower paddy receiving trough 21, and are returned to the husking section 1 through the paddy return passage 23 in the paddy hoisting machine 22. It is subjected to the de-peeling action again in the de-peeling section 1.

The lower front end of the sorting case 10, that is, the lower part on the side of the shedding section 1, is supported by a horizontal shaft 24.
0 and the rear part of the rotary sorting cylinder 11 are supported rotatably in the vertical direction, and 25 is an inclination adjustment means for adjusting the inclination of the sorting case 10. Next, FIGS. 3 and 5 will be explained. Reference numeral 26 denotes a hulling rate sensor that has a light emitting element and a light receiving element and detects the hulling rate of the rice that has fallen off from the hulling section 1; Sample grains of rice are supplied. 27 is the main motor 2 that drives the huller sorting machine.
8 or a load current sensor that can detect the load of a motor (not shown) that drives the de-pulling rolls 3, 3. Reference numeral 29 denotes a shedding ratio setting switch for setting a reference value for adjusting and controlling the gap between the shredding rolls 3, 3 based on the shedding ratio or the load of the shredding rolls 3, 3. 30 is a husking efficiency setting switch that adjusts and sets the opening degree of the paddy supply control valve 31 of the husking section 1 and adjusts and sets the efficiency of the husking section 1; 32 detects the opening degree of the paddy supply control valve 31; This is a paddy supply valve opening sensor. Reference numeral 33 indicates a first wind pressure detection sensor 34 provided at the starting end side of the remote dust exhaust pipe 6a connected to the dust exhaust pipe 6; and a second wind pressure detection sensor 34 provided at the terminal end side of the remote dust exhaust pipe 6a. The first and second wind pressure detection sensors 33 and 34 can detect whether the rice husk discharge state of the remote dust exhaust pipe 6 is good or not and whether or not the rice husk storage device 35 is attached to the tip of the remote dust exhaust pipe 6a. .

The shedding rate sensor 26 and the load current sensor 2
7, Slipping rate setting switch 29, Slipping efficiency setting switch 3
0, paddy supply valve opening sensor 32, first wind pressure detection sensor 33
The second wind pressure detection sensor 34 is connected to an arithmetic control section 36 that includes a CPU having a built-in arithmetic section and a register section, a program memory, and an arithmetic memory. In addition, a roll gap adjustment motor 38 for adjusting the roll gap adjustment means 37 of the depulping rolls 3, 3 and a suction fan 5 of the air selection unit B are connected to the arithmetic control unit 36 via an output interface and a drive circuit. The configuration is such that a control command signal is output to a wind power adjustment motor 39 that adjusts the sorting wind power by increasing or decreasing the number of revolutions of the shutter opening adjustment motor 40 that adjusts the opening and closing of the paddy supply adjustment valve 31.

Next, the control contents of the arithmetic control section 36 will be explained. (1) First, the husking rate setting switch 29 and the husking efficiency setting switch 30 are set to predetermined scales, and when the operation switch (not shown) is turned on, the rotating parts of the hulling and sorting machine are driven. Then, the initial gap setting control for the deflating rolls 3, 3, that is, the control command signal from the calculation control section 36 is sent to the roll gap adjustment motor 38, and the roll gap adjustment means 3
7 is activated to open the gap between the de-pulling rolls 3 and 3 for a predetermined period of time, and when a non-contact state is detected in which the load current value detected by the load current sensor 27 does not change, the de-pulling rolls 3 and 3 are operated. The gap is narrowed, and when an increase in the load current is detected to detect slight contact between the depulsing rolls 3, 3, the roll gap adjusting means 37 is adjusted to open for a predetermined period of time, and the depulping rolls 3, 3 are opened. 3 is opened for a predetermined period of time, and an initial gap (for example, 0.8 mm) is set. (2) Next, an open command signal from the arithmetic control section 36 is output to the shutter opening adjustment motor 40 for a predetermined period of time;
The paddy supply control valve 31 of the phushulling section 1 is set to a predetermined opening degree (for example, 10
The initial opening is set to 3 mm), and the de-pull rolls 3
Paddy grains are supplied to the husks and the hulling operation begins. ■Next,
The control shifts to the removal ratio standard for the removal roll gap. That is, depending on the size setting of the skimming efficiency setting switch 30,
The paddy supply control valve 31 is adjusted to a set opening degree. Note that during the opening degree adjustment from the initial opening degree of the paddy supply control valve 31 to the setting standard of the husking efficiency setting switch 30, the load current value detected by the load current sensor 27 is compared with a predetermined reference load current value. Then, the gap between the hulling rolls 3, 3 is adjusted so that the detected load current value becomes the reference load current value, and the rice is hulled while maintaining the hulling ratio close to the standard hulling ratio. ■Next, the process begins to control the dehulling rate of the dehulling rolls 3, 3, and first, the light intensity of the dehulling rate sensor 26 is adjusted, and the light emitting element is adjusted to the appropriate amount of light to distinguish between paddy and brown rice. Next, the voltage signals of the grains that have passed through the pulp removal rate sensor 26 are input to the calculation control unit 36, and when the voltage signals of a predetermined number of sample grains are read, the pulp removal rate is calculated. Next, the control reference shedding rate in the arithmetic control unit 36 set by the shedding rate setting switch 29 and the calculated shedding rate are compared, and it is determined that the control standard shedding rate is higher than the calculated shedding rate, or , if it is low, an open command signal or a close command signal is output to the roll gap adjustment motor 38, and the gap between the scraping rolls 3 is adjusted by a predetermined amount to the open side or the closed side. If the calculated husking rate is within the range of the standard husking rate, no control command signal is output, and the hulling operation is performed while maintaining the same husking roll gap.

[0012] Instead of controlling the gap between the de-pulling rolls based on the shedding rate, the load on the de-pulling rolls is controlled by the load current sensor 2.
7 may be detected, and load control may be performed to adjust the depulling roll gap so that the load current value becomes the reference value. ■When finishing the work, turn on the stop switch (not shown), and an open command signal is sent to the roll gap adjustment motor 38 for a predetermined time, so that the gap between the de-pulling rolls 3 and 3 is maintained. Similarly, a closing command signal for a predetermined period of time is sent to the shutter opening adjustment motor 40, and the paddy supply adjustment valve 31 is stopped.
is closed, and then the main motor 28 is stopped. ■In this way, during the hulling sorting work, the detection information from the first pressure-air sensor 33 and the second pressure-air sensor 34 is converted into an electric signal and sent to the calculation control unit 36, where both are compared and the The wind pressure detected by the first pressure wind sensor 33 is detected by the second pressure wind sensor 34.
If the detected wind pressure is higher than the detected wind pressure, the control command signal is not sent to the wind pressure adjustment motor 39, and the suction fan 5 of wind sorting B continues to rotate at the same rotation speed and is not adjusted. When the detected wind pressure is lower than the detected wind pressure of the second air pressure sensor 34, a wind force increase command signal is sent to the wind force adjustment motor 39 to increase the rotation speed of the suction fan 5. Therefore, the rice husks sorted by the wind sorting section B can be efficiently discharged, and the sorting wind of the fallen rice wind sorting path 4 can be properly maintained.

Note that this wind pressure detection means is not limited to that of this embodiment, but a pressure sensor may be provided in the sliding rice wind selection path 4 and compared with the control reference value in the arithmetic control section 36. A configuration may be adopted in which it is possible to detect whether or not the rice husk storage device 35 is attached to the dust exhaust pipe 6, or to detect whether or not rice husks are accumulated at the tip of the dust exhaust pipe 6. Moreover, instead of the above-mentioned control, a configuration may be adopted in which abnormality notification is performed.

[0014] Also, during such a hulling sorting operation, when the dehulling gap during the initial control of the operation described above is the initial gap and the paddy supply control valve 31 is at the initial opening degree, the Wind sorting section B corresponds to the shedding rate of the initial gap and the amount of dropped rice at the initial opening degree.
The wind force is adjusted, and then the skimming efficiency setting switch 30
When adjusting the opening degree of the paddy supply control valve 31 related to the adjustment of the
The sorting wind power is adjusted in relation to the amount of rice that has been sloughed off, and during the operation under the husking rate control, the husking rate is set by the husking rate setting switch 29 and the paddy supply control valve 31 is set by the setting of the efficiency setting switch 30. Contents that are adjusted to the wind force related to the opening degree may be added.

[0015] Also, the shedding rate of the fallen rice is measured by the shedding rate sensor 26.
At the same time, the amount of dropped rice is detected by the paddy supply valve opening sensor 3.
2, and the wind force of the wind selection section B may be adjusted in relation to these detection results. In addition, as shown in FIG. 1, the paddy supply ports to the depulling rolls 3 and 3 are connected to a new paddy supply port 41 for supplying new paddy and a reduced paddy supply port for supplying reduced paddy from the rotary sorting tube 11. 42, the new paddy supply port 41 can be closed by the paddy supply control valve 31, and the reduced paddy supply port 42 can be always returned without being closed, so that the new paddy supply port 41 is closed and the reduced paddy supply port 42 is open and the reduced paddy is being supplied to the dehulling rolls 3, 3, the sorting air of the wind selection section B is weakened by a control command signal from the arithmetic control section 36, and then the aforementioned dehulling -Le 3,
3, and when the initial opening of the paddy supply control valve 31 is set, the wind force may be adjusted to a corresponding sorting wind.

Next, FIGS. 6 and 7 will be explained. A plurality of flow rate sensors 44, 44, . 45 has flow rate adjustment plates 46, 46, . . . that can adjust the flow rate in the left and right directions.
is provided, and a flow rate regulating device 48 constituted by a regulating threaded rod is driven by a flow rate regulating motor 47, thereby making it possible to adjust the flow distribution state of the fallen rice. Flow rate sensor 44
, 44, ... is detected by the arithmetic control unit (not shown), the flow rates of the flow rate sensors 44, 44, ... are compared, and if the detected amounts are the same, it is determined that the rice has fallen off. Since the flow is in a proper diffusion flow state, the flow rate adjustment motor 47 remains stopped, and if there are more flow rate sensors 44 on one side than flow rate sensors 44, 44 on the other side, the flow rate adjustment motor 47 remains stopped.
A forward rotation drive signal is output to 7, and the flow rate adjustment plate 4 is output to the other side.
6, 46... are adjusted to correct the unbalanced flow rate, and the flow rate sensor 44 on the other side is replaced by the flow rate sensor 44, 44 on the one side.
If the flow rate is higher than that of the flow control motor 47, a reverse drive signal is output to the flow rate adjustment motor 47 to correct the unevenness of the flow rate. This can improve accuracy. In addition, as a means for adjusting the dispersion of the scraped rice, a configuration may be adopted in which the angle of the diffusion plate 49 located below the dehulling rolls 3, 3 is adjusted. Further, this device may be incorporated into a brown rice sorting device.

Next, the operation of the embodiment will be explained. When carrying out hulling work, raw rice is supplied to the rice hopper 2, and each rotating part of the hulling and sorting machine is driven. Then, the paddy supplied from the paddy hopper 2 to the dehulling rolls 3, 3 is subjected to the dehulling action, the scraped rice is wind-selected in the lower scraped rice wind sorting path 4, and the rice husks are passed through the dust exhaust pipe 6. is ejected from the aircraft. The mixed rice of brown rice and paddy is dropped and supplied to the sliding rice receiving trough 7, and is lifted to the starting end side of the supply trough 14 on the rotary sorting cylinder 11 side via the mixed rice hopper 9 in the mixed rice lifting machine 8. The liquid is supplied to the supply side end of the rotary sorting tube 11 by the supply helix 13 in the supply gutter 14 .

Next, the mixed rice is scraped up by the pot holes 11a, 11a, . . . of the rotary sorting cylinder 11 rotating clockwise in FIG. The rice mixed with long grain paddy and some brown rice is scraped up into the supply gutter 14 or the rotary sorting cylinder 1.
1 and will be sorted out. Then, the unsorted mixed rice that has fallen into the supply gutter 14 is fed again into the rotary sorting tube 11 from the conveyance terminal end of the supply gutter 14 by the supply helix 13, and is re-sorted.

The brown rice that has fallen into the finishing rice gutter 16 is conveyed by the finishing rice helix 15 to the finishing rice flow lower cylinder 17, passes through the finishing rice grain plate 18, and falls into the finishing rice receiving gutter 19 while being sorted by the sorting wind. The rice is sorted by wind and taken out of the machine by the finished rice lifting machine 20. In addition, grains mainly consisting of unhulled rice sent to the discharge side end of the rotary sorting cylinder 11 flow into the lower paddy receiving trough 21 and are returned to the paddy return passage 23 by the paddy lifting machine 22. , it is subjected to the shedding action again in the shedding section 1.

[0020] Next, to explain the control contents, ① First, set the sloughing rate setting switch 29 and sloughing efficiency setting switch 30 to predetermined scales, and then turn on the operation switch (not shown).
When you operate , first, the initial gap setting control for the de-pulling rolls 3, 3 is performed, and the de-pulling roll gap becomes the initial gap (for example, 0).
．． 8mm), and then the initial opening is set to open the paddy supply control valve 31 to a predetermined opening (for example, 10mm), and the paddy grains are supplied to the dehulling rolls 3 and the dehulling work begins. is started, (1) the paddy supply control valve 31 is adjusted to the set opening according to the setting of the efficiency level of the shredding efficiency setting switch 30, and (2) the shredding ratio of the shredding rolls 3, The calculation control unit 3 enters control and is set by the skipping rate setting switch 29.
The control standard shedding rate in 6 is compared with the calculated shedding rate, and if the control standard shedding rate is higher or lower than the calculated shedding rate, an open command signal is sent to the roll gap adjustment motor 38. Alternatively, a close command signal is output and the de-pulling rolls 3, 3
If the gap is adjusted to the open side or closed side by a predetermined amount, and if the calculated shedding rate is within the range of the standard shedding rate, no control command signal is output, and the shedding roll continues as it is. The rice hulling work is done while maintaining the gap. ■In this way, during the rice hulling sorting work, the rice husk storage device 35 is installed in the remote dust exhaust pipe 6a using the first pressure air sensor 33 and the second pressure air sensor 34.
whether or not the remote dust exhaust pipe 6 is installed.
It is possible to detect whether or not the condition of discharging the rice husks from the rice husks is good, and to adjust the sorting air accordingly, thereby allowing for good sorting of the fallen rice.

[0021]

Effects of the Invention As explained above, the pressure air sensors 33 and 34 provided in the wind selection section B determine whether or not the rice husk storage device 35 is attached to the dust removal device 6, or whether rice husks are removed from the dust removal device 6 or not. Since the quality of the discharge is detected and the sorting air of the wind sorting section B is increased or decreased in relation to this detection result, the wind sorting of the fallen rice in the wind sorting section B can be maintained well. It is possible.

[Brief explanation of the drawing]

[Figure 1] Whole cutaway side view

[Figure 2] Whole cutaway rear view

[Figure 3] Side view

[Figure 4] Block circuit diagram

[Figure 5] Side sectional side view

[Figure 6] Cutaway side view

[Figure 7] Cutaway plan view

[Explanation of symbols]

A Hulling section B Wind sorting section C Mixed rice sorting section 1 Slipping section 2 Paddy hopper 3 Slipping roll 4 Slipped rice wind sorting path 5 Suction fan 6 Dust exhaust tube (dust exhaust device) 6a Remote dust exhaust tube 7 Sliding Dropped rice receiving gutter 8 Mixed rice lifting machine 10 Sorting case 11 Rotary sorting tube 11a Pot hole 12 Drive roller 13 Supply helix 14 Supply gutter 15 Finishing rice helix 16 Finishing rice gutter 17 Finishing rice flow lower pipe 18 Finishing rice flow grain board 19 Finishing Rice receiving trough 20 Finished rice lifting machine 21 Paddy receiving trough 22 Paddy lifting machine 23 Paddy return passage 24 Horizontal shaft 25 Inclination adjustment means 26 Nulling rate sensor 27 Load current sensor 28 Main motor 29 Nulling rate setting switch 30 Slipping efficiency setting switch 31 Rice supply control valve 32 Rice supply valve opening sensor 33 First pressure sensor (wind pressure sensor) 34 Second pressure sensor (wind pressure sensor) 35 Rice husk storage bag (rice husk storage device) 36 Arithmetic control unit 37 Roll gap adjustment means 38 Roll gap adjustment motor 39 Wind force adjustment motor 40 Shutter opening degree adjustment motor 41 Fresh paddy supply port 42 Reduced paddy supply port 43 Diffusion chamber 44 Flow rate sensor 45 Grain flow board 46 Flow rate adjustment plate 47 Flow rate adjustment motor 48 Flow rate adjustment Device 49 Diffusion plate

Claims (1)

[Claims] Claim 1: A hulling section A that removes the hulls, a wind selection section B that wind-selects the fallen rice that has been hulled in the hulling section A, and a wind-selecting section B that wind-selects the fallen rice after the wind selection in the wind-selection section B. - It is a rice hulling sorting machine that separates and sorts brown rice, and has a configuration in which a rice husk storage device 35 can be attached to the dust exhaust device 6 that discharges rice husks in the wind sorting section B, and a part through which the sorting air of the wind sorting section B passes. Pressure air sensors 33 and 34 that can detect whether or not the rice husk storage device 35 is connected to the dust removal device 6 are provided, and when the connection state of the rice husk storage device 35 is detected by the pressure air sensors 33 and 34, the wind A wind power adjustment device for a rice hulling sorter, characterized by adjusting the sorting wind in the sorting section B to an increasing side.