JP3372218B2 - Hulling sorting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hulling and sorting device for hulling and sorting the supplied paddy to extract brown rice.

[0002]

2. Description of the Related Art A general paddy sorting device is a paddy padding section into which paddy is placed, a paddy section for paddying paddy sent from the paddy padding section, and paddy. The storage unit that stores the mixed rice of brown rice and paddy sent from the sliding unit, and the sorting unit that sorts the mixed rice sent from the storage unit into brown rice, paddy, and mixed rice, The brown rice selected in the department is taken out.

The paddy throwing section is provided with a hopper for feeding paddy to the paddy hull section.

The hulling section is provided with a pair of hulling rolls, and the hulling rolls are set to have a predetermined gap size.
During this period, the paddy is passed. The pair of hulling rolls have different rotational speeds (linear velocities) from each other (for example, one is 1000 rpm and the other is 1200 rpm), and due to this rotational speed difference, the chaff is rubbed on the peripheral surface of the chaffing roll, and the chaff is removed. It is supposed to be removed.

All of the rice (hulled rice) that has passed through the pair of hulled rolls does not become unpolished rice, and part of the rice remains unhulled rice.
It becomes a state of mixed rice in which brown rice and paddy are mixed. Rice husks can be sorted by the suction force of the rice husk discharge blower,
Mixed rice must be sorted by the sorting section separately.

The storage section is provided with a tank for storing the mixed rice fed from the hulling section and the mixed rice returned from the sorting section. From this tank, the mixed rice is stabilized in a predetermined amount in the sorting section. It is configured to be supplied in the state. This is because if the mixed rice is not stably supplied, the sorting performance of the sorting unit is deteriorated.

The sorting section is provided with a swinging sorting plate on the surface of which a myriad of protrusions having a substantially triangular cross section are formed by embossing. The swinging sorting plate swings left and right with a slight inclination. It is configured to select mixed rice. That is, due to the difference in specific gravity between brown rice and paddy, brown rice is the lower layer and paddy is the upper layer. The lower layer of brown rice is moved to one position by the protrusion, the upper layer of rice is not interfered with by the protrusion and is moved to the position opposite to the brown rice, and the mixed rice is moved to the middle position. Are separated and sorted.

[0008] The paddy is returned to the upstream side of the paddy roll, the mixed rice is returned to the upstream side of the rocking / sorting section, and the brown rice is discharged and taken out of the apparatus.

Here, the inclination angle of the rocking sorting plate is set such that during unsteady work (a predetermined time at the beginning of work in which sorting is not stable, and a predetermined time after an instruction to end sorting is given), during steady work ( It is necessary to set a predetermined inclination angle together with the time during which the sorting work is stable. As an example, it is 5 ° in the steady state, and in the non-steady state, it is set to be steeper (8 °) or gentler (2 °) than the steady state angle depending on the process.

In addition, the inclination angle may be changed depending on the nature of the paddy (water content of paddy, presence or absence of baldness, presence or absence of branch infarction, etc.).

However, conventionally, the angle of the swing selection plate is adjusted by manual or electric handle operation, and the adjustment angle is confirmed by visually observing the scale.

Further, it is very difficult to check the scale during the swing, and therefore, the inclination angle has been set comparatively roughly.

Further, in the category of the non-steady state, there is a transition period at the initial stage of operation. At the initial stage of this operation, the mixed rice did not spread uniformly over the entire surface of the rocking sorting plate, the layer thickness was thin, and it was not clearly distinguished between paddy, brown rice and mixed rice.

In such a state, if the inclination angle is in a steady state, the paddy is mixed with the brown rice and guided to the brown rice discharge port. Therefore, it is necessary to close the opening for taking the brown rice out of the apparatus with a shutter for a long time. There is. For this reason, it takes a considerable amount of time to reach a steady state, and the work efficiency is reduced. In view of the above facts, an object of the present invention is to obtain a hulling / sorting device capable of easily and accurately adjusting the tilt angle of the rocking / sorting plate to a predetermined tilt angle.

In addition to the above object, it is another object of the present invention to provide a hulling / sorting device which can easily recognize the tilt angle of the adjusted swing sorting plate.

Further, in addition to the above-mentioned object, by adjusting the inclination angle of the rocking sorting plate at the initial stage of operation, the unsteady state (the state in which paddy is mixed with brown rice) can be quickly changed to the steady state (the paddy,
It is possible to shift to a state in which brown rice and mixed rice are reliably selected), and work efficiency can be improved.

[0017]

The invention described in claim 1 is to provide a paddy-charging part into which paddy is put, a paddy-hulling part for paddying the paddy sent from the paddy-feeding part, and a padding from the paddy-covering part. It has a storage unit for storing the mixed rice of brown rice and paddy that is received, and a sorting unit for sorting the mixed rice sent from the storage unit into brown rice, paddy, and mixed rice, and is sorted by the sorting unit. In the hulled rice sorting device for taking out the unpolished rice, the sorting unit sorts the mixed rice fed from the storage unit, and a swinging unit that swings the swinging sorting plate, and tilting means for tilting the swing sorting plate, comprising a sliding resistor output resistance value changes according to the inclination angle of the swing sorting plate by said tilting means, the output resistance value of the sliding resistor Based on the volume circuit that changes voltage and the voltage output from the volume circuit The controls the tilt means, and a, and adjusting the control means for adjusting the predetermined tilt angle with a predetermined inclination angle of the swing sorting plate Te.

According to the first aspect of the present invention, the sliding resistor forming the volume circuit is mounted so that the resistance value changes according to the inclination angle of the swing selection plate. The volume circuit outputs a voltage that changes according to the resistance value of the sliding resistor, and the adjustment control means adjusts to a predetermined inclination angle set (programmed) in advance based on the voltage from the volume circuit.

Further, depending on the grain to be sorted, the degree of sorting differs depending on its properties, so the tilt angle may be changed. In this case, for example, if the set tilt angle can be set by dial operation or the like, the tilt angle can be automatically adjusted based on the tilt angle set by the dial. Hulling and sorting device having.

According to the second aspect of the present invention, the paddy-charging portion into which the paddy is put, the paddy portion for paddying the paddy fed from the paddy-charging portion, and the brown rice and the paddy-rice fed from the paddy-rice portion. And a sorting unit for sorting the mixed rice sent from the storing unit into brown rice, paddy, and mixed rice, and for taking out the brown rice sorted by the sorting unit. In the hulling and sorting device, the sorting unit includes a swing sorting plate that sorts the mixed rice fed from the storage unit, a swinging unit that swings the swing sorting plate, and the swing sorting plate. Inclining means for inclining, and initial operation control means for controlling the inclining means at the initial stage of the hulling operation so as to shift the swing selection plate to a steep inclination by a predetermined angle from the inclination angle in the steady state for a predetermined period. And have.

According to the second aspect of the invention, the initial operation control means controls the inclination angle at the initial stage of the hulling operation,
Since the rocking sorting plate is moved to the steep slope side for a set period of time by a predetermined angle, the mixed rice is evenly distributed on the rocking sorting plate more quickly than when it is rocked at a tilt angle in the steady state. It can be diffused into the substrate and can have a predetermined layer thickness.

Therefore, it is possible to shorten the transitional period when paddy is mixed with brown rice, and to improve work efficiency.

According to a third aspect of the invention, in the second aspect of the invention, the initial operation control means changes the resistance value according to the inclination angle of the rocking selection plate by the inclination means. Equipped with a sliding resistor, which changes its voltage depending on the output resistance value of this sliding resistor, and the initial stage of the hulling operation.
The adjusting means controls the inclining means based on the voltage output from the volume circuit and shifts to the steep inclination side by the predetermined angle.

According to the third aspect of the present invention, the initial operation control means is composed of the volume circuit and the adjustment control means according to the first aspect, so that the voltage from the volume circuit is adjusted by the adjustment control means. Based on the above, it is possible to easily adjust the inclination angle to the steep inclination side by a predetermined angle.

According to a fourth aspect of the present invention, in the invention according to the first or third aspect, a display is provided for displaying the tilt angle of the swing selection plate based on the voltage output from the volume circuit. It is characterized by further having means.

According to the fourth aspect of the present invention, the tilt angle of the swing selection plate is displayed by the display means. That is, by using the output voltage from the volume circuit and storing the correlation between the output voltage and the tilt angle in advance, the tilt angle can be easily recognized and displayed.

Thus, the operator only needs to read the displayed characters (numerals), and can recognize them more quickly and accurately than looking at the swing selection plate or the scale directly attached to the handle. (Embodiment) As shown in FIG.
Is tilted at a predetermined angle by the tilting means B and is rocked by the rocking means C to perform the sorting.

Here, the tilt angle of the swing selection plate A is controlled by a signal from the control means D. This control means D includes
The signal from the volume circuit E is input. The volume circuit E comprises a DC circuit to which a sliding resistor G whose resistance value changes according to the displacement (angle change) of the swing selection plate A is connected. The signal to the control means D changes accordingly. Therefore, the control means D recognizes the tilt angle of the swing selection plate A from the output signal of the volume circuit E, controls the tilt means B according to this output signal, and sets the desired tilt angle.

Further, by connecting the display means F to the control means D (claim 4), the angle of the swing selection plate A can be displayed, and the inclination angle of the swing selection plate A can be easily displayed. Can be recognized.

[0030]

1 to 3 show a hulling / sorting device 10 according to the present embodiment. It should be noted that FIG. 3 schematically shows a transport system for hulling selection, and is slightly different from the actual structure.

In the paddy sorting apparatus 10, the paddy is put in and the operation switch 12 (see FIGS. 4 and 5) is operated, whereby the subsequent steps are automatically executed, and the put in paddy becomes brown rice. It is designed to be discharged.

The paddy is put into a paddy supply hopper 14 which is a padding section opened on the upper surface of the paddy sorting device 10. The paddy supply hopper 14 has a rectangular opening and a tapered shape that gradually narrows toward the bottom. At the bottom of the paddy supply hopper 14, a rectangular supply port 1 is provided.
6 is provided, and the paddy sequentially flows into the paddy sorting device 10 through the supply port 16.

At the supply port 16, the paddy supply shutter 1
8 are provided. The paddy supply shutter 18 can be opened and closed by the driving force of the paddy supply motor 20 (see FIG. 11), and is closed when the paddy is first put into the paddy supply hopper 14. , A predetermined amount of paddy is put into the paddy supply hopper 14, and the operation switch 12
Is controlled to be in an open state when is operated.

Here, the opening degree of the paddy feed shutter 18 by the paddy feed motor 20 is controlled according to a signal from a mixed rice sensor 76 arranged in the mixed rice tank 62, which will be described later, and passes through the supply port 16. It is possible to limit the amount of paddy used. The opening degree of the paddy supply shutter 18 is detected by a rotary sliding resistor 21 connected to the rotary shaft of the paddy supply shutter 18. The rotary sliding resistor 21 is a part of components of the volume circuit 23, and the volume circuit 23 outputs a voltage based on a change in resistance of the rotary sliding resistor 21. Therefore, the opening degree of the paddy supply shutter 18 can be recognized by the voltage value.

In addition, the paddy supply hopper 14 has a paddy sensor 2
2 is attached so that it is possible to detect whether or not the paddy supply hopper 14 has paddy.

The paddy that has flowed into the paddy sorting device 10 from the supply port 16 is first sent to the paddy chamber 24 as a padding section. A pair of hulling rolls 26 and 28 are arranged in the hulling chamber 24, and the hull that has flowed into the hulling chamber 24 from the supply port 16 has a pair of hulling rolls 26, 28.
You will be guided to 28 closest positions. The standard clearance of the pair of hulling rolls 26, 28 is 0.8 mm.
And can be adjusted in units of 0.1 mm. It should be noted that this adjustment is performed by the roll gap adjusting motor 30.

The pair of hulling rolls 26, 28 have their tangent lines at the closest position inclined to the upper right in FIG.

Although the pair of hulling rolls 26 and 28 have the same outer diameter, their rotation speeds are changed by receiving the driving force of the main motor 32 by pulleys (not shown) having different outer diameters. Is slightly different. That is, the hulling roll 26 located on the left side of FIG.
m, and the hulling roll 28 located on the right side of FIG.
It is said to be rpm. Therefore, at the contact point of the closest position of the two, they are rotating relative to each other, and since the thickness of the paddy that enters the closest position is larger than the gap size, the paddy is rubbed and so-called hulling is performed.

Here, the standard gap size of 0.8 mm is derived as an optimum value based on the grain size of the rice that is currently the mainstream, and the grain size of the mainstream rice is If it changes, this standard value also needs to be changed.

The fact that the adjustment is possible in 0.1 mm units is based on experimentally conducted past data. According to this past data, hulling is performed on rice, which is currently the mainstream. It was found that the hulling rolls 26 and 28 were worn and cut by 0.05 mm in units of 15 minutes.

Therefore, in this embodiment, the standard gap size (0.8 mm) is used as an initial value, and then the roll gap size is reduced by 0.1 mm every predetermined time (15 minutes). .

As a result, apparently the roll gap size can be made constant at all times, and variations in the removal rate can be suppressed.

In the following, the pair of paddy is a pair of paddy rolls 2.
Hulled rice that has been hulled with No. 6, 28 is called hulled rice. Among these, a large amount of hulled brown rice, a small amount of unhulled rice, and rice porridge (unripe grain, only husks There is almost no rice) and rice husks are included.

A diffusing plate 34 is provided on the side of the pair of hulling rolls 26, 28 on the hulled rice discharge side. This diffusion plate 34
Has a role of diffusing the hulled rice discharged from the pair of hulling rolls 26 and 28 so as to have a uniform amount from the front side to the back side of the paper surface of FIG.

The hulled rice diffused by the diffusion plate 34 is
First slope 36 (external plate of suction duct 38 described later)
It is guided to the second slope 40 by sliding.
The slope directions of the first slope 36 and the second slope 40 are opposite to each other, and the conveying direction of the hulled rice is changed.

On the second slope 40, one end opening of the suction duct 38 is arranged so as to face it. Suction duct 3
The other end of 8 communicates with the suction port of the rice husk discharge blower 42. A guide duct 44 is attached to the outlet of the rice husk discharging blower 42. The rice husk discharge blower 42 is
It is adapted to be rotated by the driving force from the main motor 32.

The suction duct 38 is connected to the first slope 3
6 and the second slope 40 are slid down, and the relatively light rice husk is sucked and discharged to the outside through the guide duct 44.

Here, the suction duct 38 has two pipes provided side by side, and the suction openings face the upstream side and the downstream side of the second slope 40, respectively. Rice husks are absorbed on the upstream side of 40,
On the downstream side, rice husks and rice husks are sucked up. Here, the second grain recovery passage 46 is provided in the downstream pipeline.
Is provided. As a result, since the rice porridge is heavier than the rice husk, the rice husk cannot be fully climbed in the upstream pipeline, and the second slope 40
However, if it is slightly sucked up in the downstream pipeline, it will not be able to withstand this suction and will fall down, and will be guided to the second grain recovery path 46.

At the lower end of the second grain recovery path 46, a screw conveyor 48 is provided, and one end (front side in FIG. 2) of rice husks scattered in the depth direction of the hull sorting device 10.
It is possible to collect it in a concentrated manner. The screw conveyor 48 is adapted to rotate by the driving force from the main motor 32.

The hulled rice that has passed through the second slope 40 is
You will be guided to the third slope 50 and finally this third
No. 1 grain recovery path 52 arranged at the bottom of the slope 50
It falls onto the screw conveyor 54. The hulled rice that drops into the first grain recovery path 52 is in a state where rice husks and rice husks are removed and only a large amount of brown rice and a small amount of rice are mixed (hereinafter referred to as mixed rice). The screw conveyor 54 is also rotated by the driving force of the main motor 32.

The screw conveyor 54 is divided into two in the axial direction (front side: back side = about 2: 8 in FIG. 2), and the directions of the screws are set so that the feeding directions are opposite to each other. There is.

The mixed rice falling from the third slope 50 drops onto the screw on the back side of FIG. 2 and is conveyed to the end on the back side of the paper surface of FIG. Here, what falls to the screw on the front side of the paper surface of FIG. 2 is the rice that has been sorted by the sorting unit 56 described below and needs to be hulled again, and the rice from this sorting unit 56 is returned and drops. ing. The paddy dropped to the front side is collected at the end of the paper surface of FIG. 2, is mounted coaxially with the screw conveyor 54, and is raised by the thrower 33 which is rotationally driven by the driving force of the main motor 32, and is returned to the return duct 58.
It is returned to the upstream side of the pair of hulling rolls 26, 28 via.

The mixed rice collected at the end on the back side of the paper is conveyed to the uppermost part of the hull sorting device 10 by the mixed rice elevator 60 driven by the driving force of the main motor 32, and the uppermost part of the hull sorting device 10 is conveyed. The mixed rice tank 62 serving as a storage section located at is sent.

The mixed rice tank 62 is a box-shaped casing 6
The mixed rice, which is covered with the mixed rice and is fed by the mixed rice elevator 60, is accumulated in the mixed rice hopper portion 66 formed at the bottom of the tank. The side wall of the mixed rice hopper portion 66 is tapered so that the side walls gradually approach each other, and the accumulated mixed rice is collected in the supply port 68 at the bottom of the mixed rice hopper portion 66. The mixed rice hopper 6
One end of the overflow pipe 70 is opened in the middle of the inclined surface of No. 6, and a predetermined amount or more of mixed rice is mixed in the mixed rice tank 6
In the case of being accumulated in 2, the mixed rice is partially returned to the upstream side of the pair of hulling rolls 26, 28 of the hulling chamber 24 through the overflow pipe 70.

A mixed rice supply shutter 72 is attached to the bottommost supply port 68 of the mixed rice hopper 66. The mixed rice supply shutter 72 can be opened and closed by the driving force of the mixed rice supply motor 74, and the mixed rice sensor 7 provided in the mixed rice tank 62 is provided.
A signal from 6 controls the rice to be closed when the amount of mixed rice in the mixed rice tank 62 is less than or equal to a predetermined amount and to be open when the amount of mixed rice is greater than or equal to the predetermined amount. The opening degree of the mixed rice supply shutter 72 can be set in advance to limit the amount of mixed rice that passes through the supply port 68.

The mixed rice sensor 76 includes a plate 80 having one end attached to a rotatable shaft 78. The plate 80 is arranged at a position where the pressing amount changes according to the amount of the mixed rice reaching the mixed rice hopper 66. Since the plate 80 rotates about the shaft 78 in response to this pressing, the amount of mixed rice and the rotation angle of the shaft 78 can be correlated.

As shown in FIG. 6, the shaft 78 is projected outside the casing 64 of the mixed rice tank 62 (back side in FIG. 2). One end of a lever 82 is attached to the shaft 78, and the lever 82 is rotated by the rotation of the shaft 78.

One end of a link rod 84 is attached to the other end of the lever 82, and the other end (lower end) of the link rod 84 is connected to one end of a lever 86 having substantially the same shape as the lever 82. Has been done. The other end of the lever 86 at the lower end is fixed to the rotary shaft 88A of the rotary sliding resistor 88. Therefore, when the plate 80 rotates, the rotation can be recognized as the rotation of the rotary shaft 88A of the rotary sliding resistor 88 through the lever 82, the link rod 84, and the lever 86.

That is, by forming an electric circuit (volume circuit 90 (see FIG. 11)) in which the rotary sliding resistors 88 are connected in series, the voltage that changes due to the resistance change of the rotary sliding resistors 88 is detected. However, the rotation angle of the plate 80 can be determined based on this voltage value.

Mixed rice hopper 6 of the mixed rice tank 62
The mixed rice that has passed through the supply port 68 in
You will be guided to.

A distribution plate 92 is provided on the uppermost part of the sorting section 56. The distribution plate 92 is inclined downward to the right in FIG. 2, and an infinite number of substantially stepped or substantially triangular protrusions (not shown) in which the right side surface is upright and the left side surface is gently inclined are continuously formed on the surface thereof. Has been formed. The distribution plate 92 is used in the sorting unit 5
When 6 swings right and left in FIG. 2, the mixed rice dropped from the supply port 68 to the left end of the distribution plate 92 is pushed out by the right side surface of the projection and gradually moved rightward. , The entire distribution plate 92 is scattered. A flat plate 94 is attached to a ceiling portion near the right end of the distribution plate 92, and has a function of flattening the mixed rice dropped on the distribution plate 92.

At the most downstream end of the distribution plate 92, 6 distribution ports 96 are arranged from the front side to the back side of the paper surface of FIG.

The distribution ports 96 are independently communicated with the six rectangular rocking sorting plates 100, which are stacked in the lower portion of the distribution plate 92 with a predetermined gap, respectively, from the distribution plate 92. The mixed rice of (3) can be evenly distributed and supplied to each rocking sorting plate 100.

The swing selection plate 100 is inclined so that one side in the left-right direction (right side in FIG. 2) is high and the other side (left side in FIG. 2) is low, and one side in the front-rear direction (paper surface in FIG. 2). The back side is high and the other side (front side in FIG. 2) is low and inclined. The inclination in the front-rear direction is fixed, and the inclination in the left-right direction is changed by the driving force of the inclination angle motor 101. The tilt angle in the front-rear direction is 4 °, and the standard tilt angle in the left-right direction is 5 °.

Here, the change in the inclination angle in the left-right direction is transmitted to the rotary sliding resistor 104 via the link rod 102, as shown in FIGS. Therefore, similarly to the plate 80 applied as the mixed rice sensor 76 in the mixed rice tank 62, the tilt angle of the swing selection plate 100 is changed to the voltage value (volume circuit 106 ( 11))).

In the sorting section 56, the rotational driving force of the main motor 32 is converted into a reciprocating driving force by the link mechanism, and the reciprocating driving force swings to the left and right in FIG.

FIG. 7 shows the structure of a crank mechanism for swinging (vibrating) the selecting portion 56.

A pair of brackets 400 are provided on the bottom end edge on the side which is set to the inclined high position (right side in FIG. 7), and the pair of brackets 400 are supported by the swing connecting shaft 402. Note that in FIG. 7, one bracket 400 on the back side of the drawing is omitted. On the other hand, a pair of brackets 404 are provided at the bottom edge on the side in the inclined low position (the left side in FIG. 7), and the pair of brackets 404 are supported by the swing connection shaft 406. In FIG. 7, one bracket 404 on the back side of the drawing is omitted.

The swinging connecting shaft 4 on the side in which the inclined height position is set.
A swing arm 408 is connected to the swing lever 02, and the lower end of the swing arm 408 is swingably supported by a support shaft 410. That is, the edge of the sorting portion 56 on the side of the inclined high position is supported by the swing arm 408 swingably connected to the swing connecting shaft 402.

On the other hand, a support arm 412 is connected to the swing connecting shaft 406 on the side in which the tilt is in the low position.
The lower end of the support arm 412 is connected to one end of a bell crank 416 by a support shaft 414. The bell crank 416 is rotatably supported by a support shaft 418. That is, when the bell crank 416 is in a fixed state (when it is immovable), the sorting unit 56 and the swing arms 408 and 412 supporting the sorting unit 56 constitute a so-called parallel link mechanism as a whole, and the swing arm 408. And support arm 4
By rocking 12 while they are parallel to each other,
The sorting unit 56 is configured to swing (vibrate) in the left-right direction in FIG. 7.

Further, one end of a connecting shaft 420 is connected to an intermediate portion of the swing arm 408, and the other end of the connecting shaft 420 is connected to the crank shaft 422. Therefore, when the crankshaft 422 rotates, the swing arm 408 swings (vibrates) in the left-right direction in FIG. 7.
It is a configuration that can be made. The driving force of the main motor 32 is transmitted to the crank shaft 422 of this crank mechanism.

On the other hand, at the other end of the bell crank 416 to which the lower end of the support arm 412 is connected, the feed screw portion 42 is provided.
4 are provided. The feed screw portion 424 is operated by the tilt angle motor 101. That is, by operating the feed screw portion 424 by the tilt angle motor 101 to rotate the bell crank 416, the support arm 4
This is a configuration in which the height position of the swing connecting shaft 406 to which 12 is connected is changed.

Therefore, the tilt angle motor 101 is appropriately used.
The tilt angle of the selection unit 56 can be changed (adjusted) by controlling the.

A tension clutch mechanism (not shown) is provided in the driving force transmission system from the main motor 32.
Is provided, and this clutch mechanism is connected to the swing control motor 108.
It is controlled by the driving force of. That is, the tension arm connected to the rocking control motor 108 engages and disengages from the transmission belt wound between the main motor 32 and the pulley of the selection unit 56, thereby connecting and disconnecting the clutch to rock. You can switch whether or not.

As shown in FIG. 8, the rocking sorting plate 100 has an infinite number of projections 98 of substantially triangular cross section formed by embossing on the entire surface thereof, the right side surface is upright and the left side surface is gently inclined. .

The mixed rice distributed through the distribution port 96 is designed to drop to the highest portion (on the far right side in FIG. 2) on each rocking sorting plate 100. The drop position (a region extremely smaller than the entire surface area of the swing selection plate 100) is flattened to improve the slippage of the mixed rice, and the mixed rice quickly spreads over the entire surface of the swing selection plate 100. Is promoting that.

Here, the mixed rice fed to the rocking / sorting plate 100 is sorted into brown rice, paddy and mixed rice by swinging the rocking / sorting plate 100 to the left and right.

That is, the brown rice having a high specific gravity is sunk below the mixed rice layer and is pushed out by the protrusions 98 so as to move to the right side of the rocking and sorting plate 100, and the paddy having a low specific gravity is above the mixed rice layer. As it floats on the surface of the layer and slides down on the surface of the layer, it moves sequentially to the left side of the swing selection plate 100.

Due to this difference in the degree of transition, on the rocking sorting plate 100, brown rice is concentrated in the right area, mixed rice is concentrated in the central area, and paddy is concentrated in the left area so that they can be sorted (separated). ing.

This phenomenon gradually and clearly appears while naturally flowing down from the back side (supply side) of the swing selection plate 100 to the front side. Then, the brown rice, the paddy, and the mixed rice (hereinafter referred to as mixed rice) on the rocking sorting plate 100 fall onto the bottom plate portion 110 from the front side of the rocking sorting plate 100 of each stage (6 sheets).
Here, a fixed partition plate 112 and a movable partition plate 114 are provided at the falling side end (the front side end in FIG. 2) of the swing selection plate 100.
And are provided. The fixed partition plate 112 is located near the boundary between the mixed rice and the paddy, and the paddy dropped from the left side of FIG. 2 with respect to the fixed partition plate 112 is the paddy return port 116 located at the leftmost end of the bottom plate portion 110. From the first grain recovery path 52
2 is guided to the paddy return hopper 117 provided on the front side of FIG.

The screw conveyor 5 in the first grain recovery path 52
4 is divided into two as described above, and falls into the screw on the front side of the paper surface of FIG. 2 among them, so the paddy accumulated by this screw is raised by the thrower 33 and passed through the return duct 58 to form a pair of rice. It is returned to the upstream side of the hulling rolls 26 and 28.

On the other hand, the movable partition plate 114 is located near the boundary between the brown rice and the mixed rice, and the lower end portion of the partition portion 114A has a branch guide portion 114B branched in a substantially inverted Y shape.
The brown rice and the mixed rice separated by the upper partition 114A can be reliably separated.

The bottom plate 110 is provided with two outlets, one of which is a brown rice outlet 118 and the other of which is a mixed rice outlet 120. Here, the brown rice guided by the right branch guide 114B drops to the brown rice discharge port 118, and the mixed rice guided by the left branch guide 114B drops to the mixed rice discharge port 120.

Here, the movable partition plate 114 is screwed onto a shaft 122 having a male screw formed in a part thereof, the male screw having the horizontal direction of the swing selection plate 100 as the axial direction. The shaft 122 is prevented from moving in the axial direction and is rotated by the driving force of the partition plate motor 124.
Therefore, the partition plate motor 124 is driven to drive the shaft 12
When 2 rotates, the movable partition plate 11 is moved according to the rotation direction.
4 can be moved in the left-right direction in FIG. It should be noted that the amount of movement in the left-right direction is detected by the rotary sliding resistor 123 in a state of being converted into rotational movement. Accordingly, the position of the movable partition plate 114 can be recognized by the voltage value output from the volume circuit 125 including the rotary sliding resistor 123. Although not shown, its structure is substantially the same as that of the connecting mechanism including the rotary sliding resistor, the lever, and the link rod shown in FIGS. 6 and 7.

The position of the movement of the movable partition plate 114 is determined by the degree of sorting at the time of sorting the brown rice by swinging the swing sorting plate 100. That is, depending on the type of rice, the surrounding environment, etc., it may or may not be easy to sort. If it is easy to sort, the area in which brown rice is dropped expands, so the movable partition plate 114 is moved to the left in FIG. To move.
On the other hand, when it is difficult to sort, the area in which brown rice is dropped is narrowed, so the movable partition plate 114 is moved to the right in FIG.

Rotation fins 126 and 128 (see FIG. 3) for confirming the drop are provided near the left and right ends of FIG. 2 in the drop flow path that falls from the front of the uppermost swing selection plate 100. Has been. For this reason, when the mixed rice or the like falls from the swing selection plate 100, the mixed rice or the like abuts the fins, and the rotary fins 126 and 128 can be rotated.

As shown in FIG. 9, this rotary fin 12
6 and 128, a cylindrical shaft portion 126 that serves as the axis of rotation.
The fins 12A and 128A and eight fins 126B and 128B extending in the radial direction (radial direction) at equal pitches from the outer circumferences of the shaft portions 126A and 128A.
The permanent magnets 130 are attached to the tips of the extending directions of 6B and 128B. The permanent magnet 130 may be attached to the tips of all the fins 126A, 128B, but in the present embodiment, every other fin 126B, 1F.
It is attached to 28B. In any case, the permanent magnet 13
It is preferable that the mounting positions of 0 are at equal pitches around the shaft portions 126A and 128A. For example, eight fins 126 are provided.
B and 128B, the number of fins 126B and 128B to which the permanent magnet 130 is attached is 1, 2,
It is possible to select 4 or 8 sheets.

Small-diameter circular grooves 126C and 128C are provided at the center positions of both end surfaces of the shaft portions 126A and 128A, and a bearing pin 131 whose tip is cut in a tapered shape is inserted.

The bearing pin 131 has a male screw 1 at the base thereof.
35 is formed and penetrates the screw holes provided in the leg plates 133A of the bracket 133 which are parallel to each other. A nut 137 is screwed into the male screw 135 protruding to the outside of the leg plate 133A, and as a result, the bearing pin 131.
Is fixed so that the axis line of the same matches the axis lines of the shaft portions 126A and 128A.

The bracket 133 includes the rotary fins 126,
It is arranged so as to cover 128 three sides. The rotation fins 126 and 128 are arranged at the central position between the leg plates 133A, and therefore, the predetermined distance (dimensions) corresponding to the length of the bearing pin 131 is provided between the end faces of the shaft portions 126A and 128A and the leg plates 133A. (10 mm or more).

This interval (10 mm) is such that mixed rice or the like is sandwiched between the rotary fins 126 and 128 and the leg plate 133,
The rotary fins 126 and 128 are provided to prevent defective operation (rotation) from occurring. Therefore, the rotary fins 126 and 128 are always maintained in a smoothly rotatable state.

A proximity switch 132, which is close to the permanent magnet 130 when the rotary fin rotates, is attached to the base 133B of the bracket 133.

Therefore, when the rotary fins 126 and 128 rotate, the proximity switch 132 can be repeatedly turned on and off to output a pulse signal.

The tilt angle of the swing selection plate 100 is controlled by the pulse signals of both the rotary fins 126 and 128. That is, both rotating fins 12
The tilt angle is controlled so that 6, 128 rotate at the same rotation speed. Both the rotating fins 126 and 128 rotate at the same number of rotations, so that the mixed rice is uniformly dispersed on the rocking sorting plate 100 (in other words, the rocking sorting plate 1
It is recognized that the layer thickness of the mixed rice on 00 is uniform). The swing selection plate 100 in this state has the best inclination angle in terms of selection performance.

A screw conveyor 134 is disposed below the sorting unit 56, that is, at a position facing the openings of the brown rice discharge port 118 and the mixed rice discharge port 120.
The screw conveyor 134 is adapted to rotate by the driving force of the main motor 32, its axis is oriented in the left-right direction in FIG. 2, and the partition plate 1 is provided at the center thereof.
36 are provided. The partition plate 136 is set so that the left and right screws are conveyed in directions opposite to each other.

Therefore, the mixed rice discharged from the mixed rice discharge port 120 is conveyed leftward in FIG. 2 by the screw on the left side of the screw conveyor 134, and the screw conveyor 54 (see FIG. Of the paper). As a result, this mixed rice is
The mixed rice elevator 60 returns the mixed rice to the mixed rice tank 62, and the re-sorting is performed in the sorting unit 56.

On the other hand, the brown rice discharged from the brown rice discharge port 118 is conveyed rightward in FIG. 2 by the screw on the right side of the screw conveyor 134.

A brown rice discharging shutter 138 is provided at the brown rice discharging port 118, and the brown rice discharging motor 1 is provided.
It is opened and closed by the driving force of 40. Immediately after the operation of the hulled rice sorting apparatus 10 according to the present embodiment, the sorting by the sorting unit 56 is not performed for a predetermined time (that is, the transition period), and the swing sorting plate 100 is also mixed at the right end in FIG. There may be rice. Therefore, during the transitional period, the brown rice discharge port 118 is closed by the brown rice discharge shutter 138, and all the rice is guided to the mixed rice discharge port 120. When the transition period ends, the brown rice discharging shutter 138 is automatically opened, and the brown rice is discharged from the brown rice discharging port 118. The opening degree of the brown rice discharging shutter 138 is detected by the rotary sliding resistor 142, and the volume circuit 14 is detected.
It can be recognized by the voltage signal from 4.

At the right end of the screw conveyor 134, the screw conveyor 1 is integrally formed with the screw conveyor 134.
46 is provided. A brown rice discharge duct 148 is provided in the brown rice feeding direction by the thrower 146. The upper part of the brown rice discharge duct 148 is bent in a substantially U shape. The dust collection duct 1
One end of 50 is communicated. This dust collection duct 1
The other end of 50 is located in the vicinity of the first slope 36 in the rice hull chamber 24 and removes dust from the rice husk discharging blower 4.
It can be sucked by the suction force of 2 and discharged to the outside together with the rice husk.

The brown rice is climbed up in the brown rice discharge duct 148 by the throwing force of the thrower 146, and is discharged from the brown rice outlet 152 after passing through the substantially U-shaped guide path.
At this time, since the dust mixed in the brown rice is sucked by the dust collecting duct 150, the brown rice outlet 152
Will only discharge brown rice.

A lid 154 is provided at the opening of the brown rice outlet 152. This lid 154 is
Both the closed state and the open state can be held, and even in the closed state, the brown rice can be discharged by being pressed by the discharge force of the brown rice. Therefore, this lid 1
By keeping 54 closed, it is possible to prevent invasion of small animals (mouse etc.) from the outside that feed on brown rice.

4 and 5, the operation display panel 200 arranged on the front surface of the hulling and sorting apparatus 10 will be described.

The operation display panel 200 has a power switch 202, an operation switch 12, a discharge switch 204, and a stop switch 206 arranged in a horizontal direction on the upper surface of the operation display panel 200, and a rectangle around each switch except the stop switch 206. Seal-shaped guide display plates 208, 210, 21
2 is attached.

On the guide display plate 208 of the power switch 202, the number "1" and "power on" are printed on the power switch 202, and one LED 214 is provided between them. That is, it indicates that the switch is the first to be operated, and the LED 214 is turned on when the paddy sorting device 10 is activated by operating the power switch 202, and is turned off when the paddy sorting device 10 is stopped.

On the guide display plate 210 of the operation switch 12, the number "2", "preparing" and "during operation" are printed on the upper part of the operation switch 12, and 8 (4
A pair of LEDs 216 and 218 are provided.

That is, it indicates that the switch is the second one to be operated (after starting by operating the power switch 202), and the situation after the operation is started by operating the operation switch 12 is recognized by the number of lights of the LEDs 216 and 218. You can do it. That is, the four LEDs 21 on the left side of FIG.
No. 6 corresponds to "preparing", and it can be recognized that the LED 216 on the left side sequentially lights up as time passes, and the preparation is proceeding. Also, the four LEDs 21 on the right side
8 corresponds to "during operation", and the LED 2 on the left side follows the LED 216 corresponding to the "during preparation" with the passage of time.
It can be recognized that the operation is proceeding from 18 on, and the operation is proceeding. The period from the time when the operation switch 12 is operated until the time when all the LEDs 216 and 218 are turned on is a transition period.

On the guide display plate 212 of the discharge switch 204, the numerical value "3" and "remaining rice processing" are printed on the upper part of the discharge switch 204, and three LED's are provided between them.
220 is provided.

That is, it indicates that the switch is the third (operated during operation) switch, and LED2 indicates the situation when the operation is ended by operating the discharge switch 204.
It can be recognized by the lighting number of 20. That is, it can be recognized that the LEDs 220 on the left side of FIG.

When the stop switch 206 is operated during normal operation, the stop switch 206 is interrupted in accordance with a predetermined process called an interruption mode (see FIG. 14 (A)), and when it is operated again at this interruption, It is completely clear,
The driving is finished.

Further, the paddy supply hopper 14 has no paddy,
Moreover, even when the mixed rice is lost in the mixed rice hopper 14 and the rice is operated after the automatic stop, the same processing as when the stop switch 206 is operated is performed (see FIG. 12).

As described above, the hulled rice sorting apparatus 10 can be automatically operated by the four switches of the power source, the operation, the discharge, and the stop. On the other hand, when an expert or the like wants to perform an arbitrary manual operation according to his / her preference without relying on the automatic operation, he / she can open the lid 222 described below and manually operate each switch or the like. ing.

At the bottom of the operation display panel 200, the lid 2
22 is provided. The lid 222 can be opened and closed with the lower long side serving as a rotation axis.

When the lid 222 is opened, as shown in FIG. 5, a display portion 224, a manual operation portion 226, and a dial setting portion 228 are provided inside the lid portion 222.

The display section 224 has a 3-digit 7-segment display section 230 and three lamps 23 for indicating the display contents.
2, 234, 236 and a display changeover switch 238 are provided. The lamp 232 indicates the current value of the main motor 32, the lamp 234 indicates the inclination angle of the rocking sorting plate 100, the lamp 236 indicates the position of the movable partition plate 114, and the display changeover switch 238 is operated. Every time, the display content of the display unit 230 is changed to the instruction content of each lamp.

The manual operation section 226 is provided with switches which are operated mainly when manually operating each motor. At the left position, the gap between the hulling rolls 26 and 28 is set at a predetermined initial gap dimension position (standard gap dimension = 0.8 mm) at the start of operation.
There is an initial roll switch 226A to be operated in the above manner and an automatic roll switch 226B for automatically controlling the gap between the hulling rolls 26 and 28 by a predetermined dimension (0.1 mm) every predetermined time (15 minutes) in order to compensate for the wear. It is provided.

At the central position, the main motor switch 226C for driving the main motor 32 and the swing control motor 108 for operating the clutch mechanism for swinging the sorting section 56.
A swaying motor switch 226D for driving the paddy supply shutter, a paddy shutter switch 226E for driving the paddy supply motor 20 for opening and closing the paddy supply shutter 18, and a mixed rice supply motor 74 for opening and closing the mixed rice supply shutter 72. Mixed rice shutter switch 226F and brown rice discharging motor 14 for opening and closing brown rice discharging shutter 138
A circulation / discharge switch 226G for driving 0 is provided.

At the right position, a wide roll switch 240 that widens the gap between the hulling rolls 26 and 28, a narrow roll switch 242 that narrows the gap, and a sorting plate loosening switch 244 that loosens the tilt angle of the swing sorting plate 100. And a selection plate sudden switch 246 for suddenly setting the same angle.

The dial setting unit 228 has an opening of the mixed rice supply shutter 72 (amount of mixed rice supplied to the selection unit 56).
Mixed rice supply adjustment dial 248 for setting
A partition position adjustment dial 250 for setting the partition position of the movable partition plate 114 is provided. Both of the setting dials 248 and 250 are set to "standard" during the above-mentioned automatic operation, and the setting can be changed (adjusted) on the way if necessary.

10 and 11 are control block diagrams applied to the hulling / sorting apparatus 10 according to the present embodiment.

The controller 252 is equipped with an 8-bit microcomputer 254. The microcomputer 254 includes a CPU 256, a RAM 258,
ROM 260, input / output (I / O) port 262, and a bus 2 such as a data bus or a control bus connecting these
It is composed of 64. (Rice Supply Amount Control / Rice Supply Shutter Opening Control) As shown in FIG. 11, the input / output port 262 has a DC servo mechanism unit 268 for driving the grain supply shutter 18 via the D / A converter 266. Are connected.

The DC servo mechanism section 268 has a difference unit 270.
And the amplifier 272, and controls the paddy supply motor 20 which is a DC motor, and drives the paddy supply motor 20 in the forward and reverse directions according to a signal from the controller 252.
The paddy supply shutter 18 is opened and closed.
Here, the differencer 270 outputs a signal (plus signal) from the controller 252 and a signal (from the volume circuit 23 including the rotary sliding resistor 21 whose resistance value changes according to the rotation of the paddy supply motor 20). (Minus signal) is input, and the difference between these signals is the drive amount of the paddy supply motor 20. That is, the paddy supply shutter 18
Based on the opening / closing angle of 0 (0 ° in the closed state to 90 ° in the open state), the signal from the controller 252 is set to 0 as a voltage value.
5V is set in advance, and the volume circuit 2 is correspondingly set.
The signal from No. 3 is applied to the rotation angle (90
0) to 5V based on ()). Where, for example,
When the signal of 5V is output from the controller 252, the difference by the differencer 270 is 5 (5-0 = 5) at first, so the paddy supply motor 20 rotationally drives the paddy supply shutter 18 in the opening direction. By this rotation drive, when the voltage value from the volume circuit 23 gradually approaches 5V and the paddy supply shutter 18 is opened, the output from the difference unit 270 becomes 0 (5-5 = 0), and the paddy supply motor 20. Will stop.

Here, the set value of the amount of the mixed rice stored in the mixed rice hopper section 66 is output from the input / output port 262 and is input to the difference unit 271. The differencer 271 includes the mixed rice sensor 76, that is, the plate 8
A signal from a volume circuit 90 having a rotary sliding resistor 88 for detecting a rotation angle of 0 is input through an amplifier 274 and an A / D converter 276, and the difference between them is the opening degree of the paddy supply shutter 18. Is input to the differentiator 273 for setting. A signal for opening the paddy supply shutter 18 by 45 ° is input from the controller 252 to the difference unit 273, and the output to the D / A converter 266 is the output value of the difference unit 273.

Therefore, the paddy supply shutter 18 is set to 45
The opening / closing degree is controlled based on the amount of the mixed rice stored in the mixed rice hopper section 66 based on the open state. The signal from the mixed rice sensor 76 is A / D converted and then input to the input / output port 262.
(Control of gap size of hulling rolls) The hulling rolls 26 and 28 are configured to rotate by the driving force of the main motor 32.
The main motor 32 is a three-phase 200V motor having a rating of 1.9KW. The current value of the predetermined phase (R phase) of the main motor 32 is detected by the current detector 278,
After rectifying by the full-wave rectifier 280, the A / D converter 2
The data is A / D converted at 82 and input to the input / output port 262 of the controller 252. In addition, the input / output port 26
A roll gap adjusting motor 30 for adjusting the gap size between the hulling rolls 26 and 28 is connected to the roller 2.

The roll gap adjusting motor 30 first widens the gap between the hulling rolls 26 and 28 in response to a signal from the controller 252 in the initial stage of operation, and then gradually narrows the gap. Eventually, when the hulling rolls 26, 28 come into contact with each other, the current value suddenly rises, so that it is recognized that the gap between the hulling rolls 26, 28 has become 0, and the hulling rolls 26, 28 are removed from here. Predetermined initial gap size position (0.
It is controlled to widen up to 8 mm). Further, during the operation, it is controlled so as to be narrowed by a predetermined dimension (0.1 mm) every predetermined time (15 minutes). (Movable Partition Plate Position Control) The movable partition plate 114 sets its partition position by either a standard value based on a signal from the controller 252 or an arbitrary value based on the partition position adjustment diagram 250 on the operation display panel 200. be able to.

That is, the partition position adjusting dial 250
Is connected to the first contact of the changeover switch 286 via the A / D converter 284. This changeover switch 286
A signal line 288 to which position information set in the controller 252 is sent is connected to the second contact of the. With the changeover switch 286, the partition position adjusting dial 25
When 0 is set to the standard position, it is switched to the second contact (usually switched by automatic setting), and in other cases, it is switched to the first contact (manual setting).

The volume circuit 125 includes the movable partition plate 11.
Rotational sliding resistor 12 whose resistance value changes with the movement of 4
3 and outputs a negative value to the difference unit 292 via the A / D converter 290. The difference unit 292 is connected to the common terminal of the changeover switch 286, and a plus value is input from the common terminal. Therefore, the difference unit 2
A standard partition position information signal is input from the controller 252 to the partition position adjustment dial 250 when the partition position adjustment dial 250 is at the standard position, and when the partition position adjustment dial 250 is operated to any other position. A partition position information signal corresponding to the operation state is input from the adjustment dial 250. The difference unit 292 sends a signal to the partition plate motor 124 based on the difference between the actual position (signal from the volume circuit 125) and the target position (signal corresponding to the pointer value of the partition position adjustment dial 250). , The partition position is changed. (Sorting unit) The input / output port 262 has a drive transmission system for swinging the swing sorting plate 100 of the sorting unit 56 and the main motor 3.
A swing control motor 108 for connecting and disconnecting 2 is connected, and swing can be executed at a predetermined timing in the controller 252 (after a predetermined time has elapsed after the operation switch 12 was pressed). The swing control motor 108 does not perform the swing itself, but has a role as a clutch that determines whether or not the driving force of the main motor 32 is transmitted to the selection unit 56. The main motor 32 is connected to the (main motor) input / output port 262, and operation / operation is performed based on the operation of the operation switch 12, the discharge switch 204, and the stop switch 206.
Stop is controlled. (Swing Selection Plate Inclination Angle Control) The rotary sliding resistor 104 whose resistance value is changed based on the inclination angle of the oscillation selection plate 100.
The volume circuit 106 including is connected to the difference unit 296 via the A / D converter 294, and the actual angle (actual value) is input to the difference unit 296. This differencer 29
6 is connected to the input / output port 262 so that the set angle (set value) can be input. For this reason,
The difference between the set value and the actual value is output from the differentiator 296,
The tilt angle motor 101 is controlled according to this difference.

This set value (set angle) is equivalent to that of the rotary fin 1.
It is set based on the pulse signals obtained from 26 and 128.

That is, pulse signals are input from the rotary fins 126 and 128 to the input / output port 262, and the controller 252 compares the input pulses to diffuse the mixed rice on the rocking sorting plate 100. Can be grasped. By adjusting the tilt angle of the rocking sorting plate 100 so that the unit pulse numbers of both pulse signals match, the rocking sorting plate 1 is automatically and quickly.
The tilt of 00 can be adjusted to the optimum position. It can also be applied to the opening / closing timing control of a brown rice discharge shutter or the like. (Mixed Rice Supply Shutter) A mixed rice supply motor 74 for opening and closing the mixed rice supply shutter 72 is connected to the input / output port 2 via the D / A converter 75, the difference unit 77 and the amplifier 79.
It is connected to 62. A signal from a mixed rice supply amount adjusting dial 248 which is arranged on the operation display panel 200 and is connected to the input / output port 262 is input to the difference unit 77. Further, the difference circuit 77 is connected to the rotary shaft of the mixed rice supply motor 74 and has a volume circuit 93 having a rotary sliding resistor 91 for detecting the rotation angle of the rotary shaft.
The signal from is input. Mixed rice supply motor 74
Are controlled based on this difference. That is, the controller 252 outputs a signal (voltage) for keeping the mixed rice supply shutter 72 open at a constant opening. Further, the volume circuit 93 outputs a voltage varying from 0 V to the maximum value of the signal (voltage) from the controller 252.

Therefore, the set voltage is reduced by the differentiator 77 based on the output signal (voltage) from the volume circuit 93, and when the final voltage reaches 0 V, the drive of the mixed rice supply motor 74 is stopped, A predetermined opening can be obtained. (Circulation / Discharge Switching Control) The brown rice discharging motor 140 for opening and closing the brown rice discharging shutter 138 is the D / A converter 1
41, a subtractor 143, and an amplifier 145 are connected to the input / output port 262, and the signal from the volume circuit 144 having the rotary sliding resistor 142 that detects the rotation angle of the brown rice discharging motor 140 is input to the subtractor 143. And is controlled based on this difference. That is,
The control is based on the paddy supply amount control / paddy supply shutter opening control. (Paddy sensor) The paddy sensor 22 outputs a different signal depending on whether the paddy is present in the paddy supply hopper 14 and sends it to the controller 252. It should be noted that the output timing of the non-existing signal is not in the condition that there is no paddy, but in the paddy supply hopper 1
It may be the time when the minimum amount of paddy remains in 4.

The operation of the present embodiment will be described below with reference to the flow charts of FIGS.

As shown in FIG. 12, in step 300, it is determined whether or not the power switch 202 is operated, and when the paddy sorting device 10 is turned on by the operation of the power switch 202 (affirmative determination), the operation is performed. The LED 214 of the display panel 200 lights up (step 302),
The controller 252 is powered on and enters a standby state.

In this standby state, the paddy supply shutter 18, the mixed rice supply shutter 72, and the brown rice discharge shutter 138 are closed, and the movable partition plate 114 is closed.
Is moved to a preset position (usually the standard position) by the partition position adjusting dial 250. Further, the tilt angle of the swing selection plate 100 in the left-right direction is set to an initial value of 5 °.

During the preparation for the standby, the paddy is fed into the paddy supply hopper 14.

In step 304, the operation switch 1
It is determined whether or not No. 2 has been operated, and if an affirmative determination is made, driving of the main motor 32 is started in step 308.
At this time, the LEDs 216, 218, 220 are sequentially arranged from the leftmost side to the rightmost side in FIG. 4 of 216 (No. 1) to 216 (No.
4) 218 (No.5) to 218 (No.8), 220 (No.9)
~ 223 (No.11), LED216
(No.1) lights up.

By driving the main motor 32, driving of the hulling rolls 26, 28, the hulling discharge blower 42, and the screw conveyor 48 is started.

In the next step 310, the hulling roll 2
The gap dimension of 6 and 28 is set to 0.8mm which is the initial value, and LED216 (N
o.2) and LED216 (No.3) light up. Next, in step 312, the rotational position of the swing control motor 108 is changed and the clutch is engaged in order to swing the sorting unit 56. As a result, the swing selection plate 100 starts to swing. Along with this, driving of the mixed rice elevator 60, the screw conveyors 54 and 134, and the throwers 33 and 146, which are the same power transmission system as the sorting unit 56, is also started. At this time, the LED 216 (No. 4) lights up.

In the next step 314, the paddy supply shutter 18 is opened, the LED 218 (No. 5) is turned on,
The paddy fed into the paddy feed hopper 14 sequentially passes through the feed port 16 and is guided to the gap between the paddy rolls 26 and 28. In addition, in the next step 316, the hulling roll 2 is set every 15 minutes.
The control for narrowing the gap size of 6 and 28 by 0.1 mm is set, and the process proceeds to step 318. This hulling roll 2
The hulled rice hulled by 6, 28 slides down the first slope 36 while being diffused by the diffusion plate 34,
To the slope 40. While sliding down the second slope 40, the rice husks are sucked and removed, and separated from brown rice and rice. In addition, rice porridge is also separated from brown rice and paddy, and second grain collection path 46
And is accumulated by the screw conveyor 48.

The mixed rice of brown rice and paddy that has slid down the second slope 40 is guided by the third slope 50 and reaches the first grain recovery path 52.

A screw conveyor 54 is arranged in the first grain collecting path 52, and the mixed rice is accumulated in the lower part of the mixed rice elevator 60 arranged on the back side of the paper surface of FIG. The mixed rice lifting machine 60 conveys the accumulated mixed rice to the upper part of the hulling and sorting apparatus 10 and discharges it to the mixed rice tank 62.

The mixed rice tank 62 has a mixed rice hopper 6
6 is provided, and the mixed rice is mixed with the mixed rice hopper 66.
Will be accumulated in.

Here, the plate 80 of the mixed rice sensor 76
However, when the mixed rice is pressed and rotated by the accumulated mixed rice, the accumulated amount of the mixed rice hopper 66 is recognized.

That is, by transmitting the rotation amount of the plate 80 to the rotary sliding resistor 88 via the lever 82, the link rod 84, and the lever 86, the volume circuit 90 including the rotary sliding resistor 88 electrically operates. Target (voltage value)
Recognize the amount of mixed rice.

That is, if it is determined in step 318 that the mixed rice in the mixed rice hopper section 66 has reached the predetermined amount based on the voltage value, the process proceeds to step 320 and the mixed rice supply shutter 72 is opened. At this time, LE
D218 (No.6) lights up.

The mixed rice supply shutter 72 is opened at an opening (usually a standard opening) preset by the mixed rice supply amount adjusting dial 248 to stably supply the mixed rice to the selection unit by a predetermined amount.

The mixed rice passes through the supply port 68 and passes through the sorting section 56.
2 on the distribution plate 92 of FIG. This distribution plate 9
The mixed rice dropped to No. 2 spreads over the entire surface of the distribution plate 92 while gradually moving to the right end in FIG. 2 due to the slanting action of the inclination and the protrusion formed on the surface.

A flat plate 94 is provided in the vicinity of the right end of the distribution plate 92 in FIG. 2, and the mixed rice is flattened by passing through the flat plate 94, and is evenly distributed to the six distribution ports 96. It flows down in a quantity and is supplied to the six rocking sorting plates 100.

By the way, the mixed rice supplied to the rocking sorting plate 100 is not separated and sorted well because the amount of the mixed rice is small at the beginning, and all of the mixed rice shifts to a higher slope and deviates. In order to prevent this phenomenon, in the next step 322, the swing selection plate 100 is
Steeply tilts for 30 seconds (standard tilt angle (5 °)
Set to + 1 °) and LED218 (No.
Turn on 7).

As a result, the mixed rice fed to the rocking / sorting plate 100 gradually diffuses from the feeding part due to the tilting and the rocking action of the projections 98 formed on the surface, and the brown rice and the paddy are mixed with each other. While being separated and sorted into and, they are spread over almost the entire surface of the swing sorting plate 100.

By the way, in order for the above-mentioned steady selection to be carried out, it is premised that the mixed rice or the like is spread evenly over the rocking selection plate 100 with a predetermined layer thickness, but At the initial stage of the sliding sorting operation, since this does not occur uniformly, this steady sorting is not performed.

Therefore, at the beginning of the operation, the tilt angle of the swing selection plate 100 in the left-right direction is increased by a predetermined angle (1 ° in the present embodiment) from the standard tilt angle (5 °), and the tilt angle is increased. There is a period in which the down slope from the side (brown rice discharge side, right side in FIG. 2) to the non-swaying side (paddy exit side, left side in FIG. 2) is made steeper.

This steep slope period is 3 in this embodiment.
It is set to 0 seconds. By providing this steep slope period, although it is slightly thinner than a predetermined layer thickness, the mixed rice or the like can be swiftly and uniformly spread on the rocking sorting plate 100 as a minimum necessary condition, and a short period is possible. It is possible to obtain steady information with.

The mixed rice and the like that have diffused fall from the front side of the paper surface of FIG.
Since the blades of the rotary fins 126 and 128 provided on both sides of the rotary fins abut, the rotary fins 126 and 128 rotate. The larger the amount of mixed rice dropped, the more the rotating fins 126,
Since the number of rotations of 128 is large, the tilting angle of the rocking sorting plate 100 is controlled so that the unit output pulse numbers of both of them are matched, so that the rocking sorting plate 100 is swiftly and easily.
The inclination angle of can be automatically adjusted.

Explaining this in detail, the rotary fin 12
At the tips of the fins 126B and 128B of the 6,128,
Every other permanent magnet 130 is embedded.
The bracket 133 corresponding to a part near the rotation locus of 30
Since the base switch 133B is provided with the proximity switch 132, the proximity switch 132 is repeatedly turned on and off by the rotation of the rotary fins 126 and 128. A pulse waveform can be obtained by electrically detecting this.

The rotary fins 126 and 128 are
The shaft portions 126A and 128A are supported by bearing pins 131, and a gap larger than that of rice grains is provided between the end surfaces of the shaft portions 126A and 128A and the leg portions 133A of the bracket 133. Therefore, even if mixed rice or the like enters between them, the rotating fin 1 does not get pinched.
26 and 128 can always be smoothly rotated.

Since the number of rotations of the above-mentioned rotary fins 126 and 128 is proportional to the amount of mixed rice or the like with which it abuts, the controller 2
Detecting the difference in the number of rotations (frequency) of the left and right rotary fins 126 and 128, 52 is capable of recognizing an offset state of the layer thickness of the mixed rice or the like of the swing selection plate 100.

Here, in the controller 252, the tilt angle of the swing selection plate 100 is controlled by pulse signals from both rotary fins 126 and 128 so that both rotary fins 126 and 128 rotate at the same rotational speed. . Then, because both frequencies match, the swing selection plate 1
It can be recognized that the state of diffusion (layer thickness) of mixed rice etc. on 00 is uniform (step 324).

In this state, brown rice, paddy and mixed rice are clearly separated and sorted on the rocking sorting plate 100.

At step 328, if it is affirmed that the mixed rice and the like on the rocking sorting plate 100 have become uniform, the brown rice discharging shutter 138 is set to open after a predetermined time has elapsed from this point. , LED
(No.8) lights up.

Here, the paddy sorted on the swing sorting plate 100 falls from the left side of the fixed partition plate 112 in FIG. 2, is accumulated by the screw conveyor 54, and is again collected by the thrower 33 on the hulling roll 26, It is returned to the upstream side of 28.

Further, the mixed rice drops from between the fixed partition plate 112 and the movable partition plate 114 and reaches the screw conveyor 134 from the mixed rice discharge port 120, and the first grain recovery path 5
It is returned to the second screw conveyor 54. As a result, the mixed rice elevator 60 returns the mixed rice to the mixed rice tank 62.

The brown rice drops from the right side of the movable partition plate 114 in FIG. 2, reaches the screw conveyor 134 from the brown rice discharge port 118, and is discharged to the outside from the brown rice discharge port 152 through the brown rice discharge duct 148 by the thrower 146. To be done.

When the brown rice discharging shutter 138 of the brown rice discharging port 118 is closed, the movable partition plate 11
4 is guided to the mixed rice discharge port 120 even if it falls from the right side of FIG.

In the next step 330, the mixed rice sensor 7
Based on the detection signal of No. 6, it is determined whether the mixed rice hopper unit 66 has the required minimum amount of mixed rice. It is determined whether or not the paddy remains in the supply hopper 14, and if the paddy remains, the process returns to step 330,
The above steps 330 and 332 are repeated.

If a negative determination is made in steps 330 and 332, it is determined that normal sorting cannot be performed, and the paddy supply shutter 18, the mixed rice supply shutter 72 and the brown rice discharge shutter 138 are temporarily closed (step 33).
4), circulate mixed rice etc. in the plane.

At step 336, a buzzer or the like warns that the rice has run out. Next, at step 338, for another 30 seconds after the warning, it waits for new paddy to be added to the paddy supply hopper 14. In step 340, it is determined whether or not new paddy has been put in. If the paddy has been put in, the process proceeds from step 340 to step 314, and the paddy sorting operation is continued.

On the other hand, in the negative judgment, that is, when the paddy has not been thrown in, the process proceeds from step 340 to 342,
The swing of the swing selection plate 100 is stopped, the driving of the main motor 32 is stopped, and the process proceeds to step 344.

At step 344, the stop switch 206
It is determined whether or not has been operated, and if an affirmative determination is made, the process ends in the current state.

If a negative determination is made in step 344, the process proceeds from step 344 to step 346, it is determined whether or not the operation switch 12 has been operated, and if a positive determination is made, the process proceeds to step 348. The mixed rice discharging course in the remaining rice processing mode (see FIG. 13) is executed.

If a negative determination is made in step 346, the routine proceeds from step 346 to step 350, it is determined whether or not the discharge switch 204 has been operated, and if a positive determination is made, the routine proceeds to step 352. The brown rice discharging course in the remaining rice processing mode (see FIG. 13) is executed.

When a negative determination is made in step 350, the process returns to step 344, and steps 344, 346, 350 are performed until any one of the stop switch 206, the operation switch 12, and the discharge switch 204 is operated.
repeat.

FIG. 13 shows a subroutine for executing the remaining rice treatment mode.

First, the mixed rice discharging course when the operation switch 12 is operated will be described. This is a course to discharge the remaining rice inside the machine as it is (as mixed rice) to the outside of the machine.

In step 360, driving of the main motor 32 is started, and then in step 362, driving of the swing selection plate is started.

At the next step 364, the tilt angle of the swing selection plate is set to a gentler tilt angle (-2 °) than the standard tilt angle (5 °).

At the next step 366, the movable partition plate 114 is moved to the non-swing side, and the operation is continued for 2 minutes in this state. The discharge of all remaining rice is completed in these 2 minutes.

As described above, in the mixed rice discharging course in the remaining rice processing mode, the tilt angle of the swing sorting plate 100 in the left-right direction is a predetermined angle (2 in the present embodiment) rather than the standard tilt angle (5 °). °), and the downslope from the swaying side (brown rice discharging side) to the non-swaying side (paddy outlet side) is gently inclined for 2 minutes, and therefore remains on the oscillating sorting plate 100. It is possible to drop all the mixed rice and the like from the swaying side, and quickly take it out of the apparatus through the brown rice discharge port without circulating it.

As in step 366, since the movable partition plate 114 is moved to the non-swing side from the standard position, it is more outside the apparatus than when the movable partition plate 114 is placed in the standard position. It is possible to shorten the take-out time to the.

After the operation for 2 minutes, the process proceeds from step 366 to step 368 to return the swing selection plate to the standard inclination angle (5 °), and then in step 370, the movable partition plate 114 is returned to the original position and In the next step 372, the brown rice discharging shutter 138 is closed.

In the next step 374, the swing selection plate 10
The oscillation of 0 is stopped, then the driving of the main motor 32 is stopped in step 376, and the processing of the mixed rice discharging course is completed.

Next, the brown rice discharging course when the discharging switch 204 is operated will be described. This is a course in which all the remaining rice in the machine is changed to brown rice and then discharged to the outside of the machine.

At step 360A, the main motor 32
Then, in step 378, the control for narrowing the gap size between the hulling rolls 26 and 28 by 0.1 mm is set every 15 minutes, and then in step 362A, the swing selection plate 100 starts swinging. To do.

In the next step 379, the swing selection plate 10
0 is steeper than standard tilt angle (5 °) (+3
°) and continue operation for 4 minutes.

As described above, in the brown rice discharging course in the remaining rice treatment mode, the inclination angle of the swinging selection plate 100 in the left-right direction is a predetermined angle (3 ° in the present embodiment) rather than the standard inclination angle (5 °). ) Increasing and moving side (Brown rice discharge side)
Down slope to the non-swaying side (hull exit side) was made steep, and this was continued for a predetermined period (4 minutes), so all the mixed rice, etc. fell to the non-swaying side and It is returned to the upstream side, and this is repeated several times within a predetermined period (4 minutes), so it is possible to take out all as brown rice.

After the operation is continued for 4 minutes, the process proceeds to step 364 and the same process as the mixed rice discharging course is executed.

Next, when the stop switch 206 is operated while the hulling / sorting apparatus 10 is operating, an interruption occurs and the interruption mode is executed.

In this interruption mode, as shown in FIG. 14A, the paddy supply shutter 18, the mixed rice supply shutter 72 and the brown rice discharge shutter 138 are immediately closed in step 380 regardless of the current operating state. Next, at step 382, the angle control of the swing selection plate 100 and the position control of the movable partition plate 114 are stopped, and the state is maintained as it is.

At the next step 384, the swing selection plate 10
The oscillation of 0 is stopped (tension clutch is disengaged), and then in step 386, the driving of the main motor 32 is stopped.

Since this interruption mode is executed in about 5 seconds and becomes a so-called emergency stop, it is necessary to thereafter select whether to terminate the operation as it is or to perform the restart processing for treating the residual rice. Becomes This selection is performed by operating the stop switch 206 or the operation switch 12.

That is, when it is determined in step 388 that the stop switch 390 has been operated, the operation is ended as it is. When it is determined in step 390 that the operation switch 12 has been operated, the restart control shown in FIG. 14B is executed. Note that steps 388 and 390 are repeated until either the stop switch 206 or the operation switch 12 is operated.

FIG. 14B shows a flowchart for the restart process.

In step 392, first, the main motor 3
2 is started, and then the swing selection plate 100 is started to swing (step 394).

In the next step 396, the swing selection plate 10
The tilt angle of 0 and the position control of the movable partition plate 114 are restarted, and then, in step 398, the paddy feeding shutter 1
8 is opened, the mixed rice supply shutter 72 is opened, and the brown rice discharge shutter 138 is opened. Then, the process returns to the processing routine at the time of interruption. In addition, this restart process
It takes about 10 seconds and can be quickly started up.

[0193]

As described above, the hull sorting device according to the present invention has an excellent effect that the tilt angle of the rocking sorting plate can be easily and accurately adjusted to a predetermined tilt angle.

In addition to the above effects, it is possible to easily recognize the tilt angle of the adjusted swing selecting plate.

Further, in addition to the above effects, by adjusting the inclination angle of the rocking selection plate at the initial stage of operation, the unsteady state (the state in which paddy is mixed with brown rice) can be rapidly changed to the steady state (the paddy,
It is possible to shift to a state in which brown rice and mixed rice can be reliably selected), and there is an effect that work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a hulling / sorting device according to the present embodiment.

FIG. 2 is a schematic configuration diagram of a rice hull sorting device according to the present embodiment.

[Fig. 3] Fig. 3 is a schematic diagram showing the flow of grains in the hulling / sorting device according to the present embodiment.

FIG. 4 is a front view (lid closed state) of an operation display panel provided in the hull sorting device.

FIG. 5 is a front view (lid open state) of the operation display panel provided in the hulling / sorting device.

FIG. 6 is a perspective view showing a link mechanism for transmitting the rotational movement of the plate installed in the mixed rice tank to the rotary sliding resistor.

FIG. 7 is a front view including a swinging mechanism of a sorting unit.

FIG. 8 is a perspective view showing a link mechanism for transmitting displacement of the inclination angle of the selection unit to the rotary sliding resistor.

9A is a side view of a rotary fin, and FIG. 9B is a side view of FIG.
It is the IXB-IXB sectional view taken on the line of (A).

FIG. 10 is a control block diagram (controller) of the hulling and sorting apparatus according to the present embodiment.

FIG. 11 is a control block diagram (peripheral device) of the hulling / sorting device according to the present embodiment.

FIG. 12 is a control flowchart (normal operation) showing the operation of the hulling and sorting apparatus according to the present embodiment.

FIG. 13 is a control flowchart (stop operation) showing an operation of the hulling / sorting device according to the present embodiment.

FIG. 14 is a control flowchart showing the operation of the hulling / sorting apparatus according to the present embodiment, (A) is an interruption operation flowchart, and (B) is a restart control flowchart.

FIG. 15 is a corresponding diagram according to the embodiment of the present invention.

[Explanation of symbols]

10 Paddy sorting device 14 Paddy supply hopper (paddy input part) 18 Paddy supply shutter 22 Paddy sensor 24 Paddy chamber (paddy part) 26, 28 Paddy roll 56 Sorting part 62 Mixed rice tank (storage part) 66 Mixed rice Hopper 72 Mixed rice supply shutter 80 Plate 88 Rotary sliding resistor (for detecting mixed rice amount in mixed rice tank) 100 Swing sorting plate 104 Rotary sliding resistor (for sorting plate tilt angle) 112 Fixed partition plate 114 Movable Partition plate 123 Rotational sliding resistor (for partition plate position detection) 126, 128 Rotating fin (rotating body) 138 Brown rice discharging shutter 200 Operation display panel 252 Controller

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Fumiya Ishiyama Inventor Fumiya Ishiyama Yamagata Seisakusho Co., Ltd. 404 No. Oromori, Tendo City, Yamagata (56) References JP-A-6-320115 (JP, A) JP-A-2000-42496 (JP) , A) JP-A-52-107952 (JP, A) JP-A-2-17984 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B07B 1/00-15/00

Claims (4)

(57) [Claims] 1. A paddy input section into which paddy is put, a paddy section for paddying the paddy sent from the paddy input section, and a mixed rice of brown rice and paddy sent from the paddy section. A rice hull sorting device for storing brown rice, which is sent from the storage unit to brown rice, paddy, and mixed rice, and for extracting the brown rice sorted by the sorting unit. The sorting unit sorts the mixed rice fed from the storage unit, a swinging unit that swings the swinging sorting plate, an inclining unit that tilts the swinging sorting plate, A volume resistor circuit having a sliding resistor whose output resistance value changes according to the inclination angle of the swing selection plate by the inclination means, and a voltage which changes with the output resistance value of the sliding resistor; and an output from the volume circuit. The tilting means is controlled on the basis of the applied voltage, and the swing selection is performed. A hulling and sorting device comprising: an adjustment control unit that adjusts the inclination angle of the separate plate to a predetermined inclination angle. 2. A paddy input section into which paddy is put, a paddy section for paddying the paddy sent from the paddy input section, and a mixed rice of brown rice and paddy sent from the paddy section. A rice hull sorting device for storing brown rice, which is sent from the storage unit to brown rice, paddy, and mixed rice, and for extracting the brown rice sorted by the sorting unit. A sorting unit that sorts the mixed rice fed from the storage unit; a swinging unit that swings the swinging sorting plate; a tilting unit that tilts the swinging sorting plate; In the initial stage of the sliding operation, an initial operation control unit that controls the tilting unit to shift the swing selection plate to a steeper angle by a predetermined angle than a steady tilt angle for a set predetermined period, apparatus. 3. The initial operation control means is provided with a sliding resistor whose resistance value changes according to the tilt angle of the rocking selection plate by the tilting means, and the output resistance value of the sliding resistor is used as a voltage. Of the volume control circuit, and in the initial stage of hulling operation, the tilting means is controlled based on the voltage output from the volume control circuit, and the adjusting control means is configured to shift to the steep inclination side by the predetermined angle. The hulling and sorting device according to claim 2, wherein 4. The hulled rice sorting device according to claim 1, further comprising display means for displaying an inclination angle of the rocking sorting plate based on a voltage output from the volume circuit. .