JPH01245861A - Rice huller - Google Patents

Abstract

PURPOSE:To improve hulling efficiencies or selection performances, by adjusting the clearance between hulling rolls or selection conditions of a rice huller depending on the mixing rate of unripe grains which are mixed into grains to be hulled. CONSTITUTION:In a hulling operation, the clearance between hulling rolls 1 is controlled so as to be made wider or narrower to hulled grains, depending on the moisture content of grains to be hulled and the mixing rate of unripe grains that mix into the grains. And further, the grains are hulled in such a way that the rotation of a rotary selection device 12 to adjust selection conditions is controlled to a high rotation or low rotation, and furthermore, an open-close valve 34 to adjust the quantity of grains to be supplied into the clearance of the hulling rolls 1 is controlled to a half open or full open state. In this case, moisture in grains to be hulled after being dried and mixing rate of unripe grains are caused to be detected on the side of a dryer, which is inputted from an operation device into a control unit 33 to effect hulling control.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a rice huller.

Conventional technology In the past, the gap between the hulling rolls used for hulling was controlled to be a constant gap regardless of the proportion of immature rice mixed into the grains being hulled, and The rice huller was a rice huller in which the hulling operation was carried out under constant sorting conditions, regardless of the proportion of immature grains mixed in, in which the grains were sorted while rotating.

The grains supplied between a pair of hulling rolls are fed into the outer periphery of the hulling rolls, whereupon the hulling is performed, and the rice husks are wind-selected and discharged outside the machine. The hulled brown rice and some unhulled paddy grains are fed into a rotary sorting device that rotates once, and are sorted into brown rice and paddy grains in this rotary sorting device, and the brown rice is sent to a grain frying device. The paddy grains are fried and discharged outside the machine, and then the paddy grains are fed again between the hulling rolls and hulled. If so, the immature grains are crushed between the hulling rolls because the gap between the hulling rolls is constant, and may adhere to the hulling rolls, reducing the hulling efficiency, or the rotational sorting. Since the rotational speed of the device is also constant, it is not possible to reliably separate brown rice from paddy grains, resulting in rice grains getting mixed into the brown rice and degrading the hulling and sorting performance.

Means for Solving the Problems Regarding the Invention of Claim 1 This invention provides a configuration of a hulling machine characterized in that the gap between the hulling rolls (1) is controlled to be wide and narrow by detecting the mixing ratio of unhulled rice. shall be.

Effect of the Invention In the device in which the gap between the hulling rolls (1) is controlled wide and narrow by detecting immature grain contamination, the grains supplied between the pair of rotationally driven hulling rolls (1) are (
1) Hulling is performed without being fed into the outer peripheral surface, the rice husks are wind-selected and suctioned out of the machine, and the unhulled brown rice and some unhulled rice grains are.

The rice is fed into a rotationally driven rotary sorting device, where it is sorted into brown rice and paddy grains.The brown rice is fried in a grain frying device, etc. and discharged outside the machine, and the paddy grains are re-hulled. roll +
The rice is supplied to the 11-room and the hulling work is carried out.

During this hulling work, the mixing ratio of immature grains mixed into the grains to be hulled is detected, and when the mixing ratio is high, the gap between the hulling rolls (1) is controlled to be widened, for example. Conversely, when the mixing ratio is low, the hulling work is performed while controlling the gap between the hulling rolls (1) to be narrow.

Effects of the invention By controlling the gap between the hulling rolls (1) depending on the mixing ratio of immature grains mixed into the grains undergoing hulling,
For example, when the ratio of immature grains mixed in is high, by controlling the gap to be wide, the green rice is less likely to be crushed, and the crushed immature grains are less likely to adhere to the hulling roll (1). When the hulling efficiency is improved and the proportion of immature grains mixed in is low, the gap is controlled to be narrower, improving the efficiency of hulling and eliminating the occurrence of body chafing on brown rice.

Good quality brown rice can be obtained.

Means for Solving the Problems Regarding the Invention of Claim 2 This invention involves detecting the mixing ratio of immature rice to receive the crushed rice scraped out by the hulling roll (1) and sorting the unpolished rice while rotating. The structure of the huller is characterized in that the sorting conditions are adjusted and controlled.

Effect of the Invention In an apparatus that adjusts and controls the sorting conditions for sorting brown rice by receiving the polished rice scraped by the hulling roll (1) by detecting immature grain contamination, a pair of rotationally driven hulling rolls (1) is used.
) The grains supplied between the hullers are fed into the outer peripheral surface of the huller roll (1) and then hulled.The rice husks are wind-selected and suctioned out of the machine, where they are separated from the hulled brown rice. Some of the paddy grains that have not been hulled are fed into a rotary sorting device that is driven once, and in this rotary sorting device, they are sorted into brown rice and paddy grains, and the brown rice is fried in a grain frying device or the like. After being discharged from the machine, the rice grains are again supplied between the hulling rolls (1) to perform the hulling operation.

During this hulling work, the mixing ratio of immature grains mixed into the grains to be hulled is detected, and when the mixing ratio is high, for example, the rotation of the rotationally driven rotary sorting device is controlled to a low speed rotation, In addition, the position of the separation device that separates brown rice and paddy grains is adjusted and controlled to a position closer to the brown rice side, and the hulling work is performed.Contrary to the above, when the mixing ratio is low, the rotation of the rotary sorting device is adjusted to a high speed. Hulling is performed by controlling the rotation or by adjusting the position of the separating device to be closer to the rice grain side.

Effects of the Invention Depending on the mixing ratio of immature grains mixed into the grains subjected to hulling, the rotation speed of the rotary sorting device under the sorting conditions for brown rice can be controlled to a low rotation speed or to a high rotation speed. Then, the grains are sorted at the optimum rotation speed for the mixed state of immature grains.
In addition, by controlling the separation position of the separator that separates brown rice and paddy grains, the separation is performed at the optimal position to accommodate the mixing of immature grains, which prevents paddy grains from being mixed into the sorted brown rice. Therefore, the rice hulling sorting performance was improved.

Embodiment In the example shown in Figure 1, the huller (2) has a structure in which a huller is installed at the front upper part, a winnowing device is installed at the bottom of this huller, and a sorting device is installed at the rear. It is.

The hulling device has a paddy tank (3) at the top into which paddy grains are input.
At the bottom of this paddy tank (3), an on-off valve (b) which can be opened and closed is supported by a shaft, and this on-off valve (b) is equipped with a solenoid (to).
The opening/closing state is controlled by the operation of the paddy tank (3). At the bottom of the paddy tank (3), there is a pair of hulling rolls ( 1) is fixed to the hulling roll shaft (4), and this hulling roll shaft (4) on the other hand slides and moves by the forward and reverse rotation of the roll opening/closing motor (5) to remove the hulling roll (1). .

(1) This is a configuration in which the gap is controlled to be widened or narrowed.

The wind sorting device includes the hulling rolls (1) and each downstream shelf (6) on which the hulled brown rice, unhulled paddy grains, and rice husks flow down. A dust removal device (7) is installed in front of each downstream shelf (6), and the brown rice, paddy grains, and rice husks flowing down on each downstream shelf (6) are screened, and the rice husks are removed from the dust. The structure is such that it is sucked by a device (7) and discharged outside the machine, and the crushed rice containing a mixture of brown rice and paddy grains is supplied to a crushed rice rack (8) that supports a transfer spiral (9). This transfer spiral (9) transfers the rice to the - side and supplies it into the rice tank M (11), and the rice is fried to the upper part by this rice lifting device (III) and is supplied into the rice tank (1υ). This is the configuration that will be used.

The sorting device has a cylindrical rotary sorting device having an uneven inner wall and is installed horizontally, and a plurality of rotating rolls f13 are provided on the outer wall of the rotary sorting device Uδ.
The rotary sorting device Qδ is rotationally driven by the rotation of 3, and each roll (13 is controlled to rotate at variable speeds by a variable speed motor 04, and the rotary sorting device 0δ is controlled to rotate at variable speeds. Near the center of the sorting equipment fiQ5,
A mixed rice transfer spiral (19) that receives the washed rice supplied from the washed rice tank 0υ, transfers it to the rear end, and supplies it to the inner wall of the rear end of the rotary sorting device Maδ A transfer gutter (I2 is provided, and the washed rice supplied into this rotary sorting device aa is fitted into a concave portion of 1δ and is sorted into brown rice and paddy grains while being transferred to the upper part. A brown rice transfer gutter (11 A rotatable separating device is installed at the tip of this brown rice transfer gutter (113) to prevent rice grains from getting mixed into the brown rice. It has a configuration in which the rotation is controlled up and down by the brown rice transfer gutter (
The brown rice supplied from Ill is sorted by the dust removal device (7) while flowing down on each brown rice sorting shelf Q1), and then sent to the brown rice door gutter (225).
The brown rice is supplied to the inside of the machine, is transferred to one end by a transfer spiral (end) pivoted on this brown rice door gutter T2X5, is fried to the upper part by a brown rice frying unit N (c), and is discharged outside the machine. .

The rotary sorting device (12
A mixing rice gutter (A) is installed in which a transfer spiral - is pivoted in the front and back direction to receive paddy grains and some unpolished rice that are sorted and fall while being transferred to the upper part by the +, and to be transferred to the front end. The mixed rice supplied from the mixing door @Kan is fed into the sliding rice rack (8), is transferred to the side by the transfer spiral (9), and is transferred to the sliding rice lifting device by the sliding rice lifting device. The rice is supplied into the rice tank (11), and from this removed rice tank (Ill), the mixed rice is supplied to the rotary sorting device (12+) through the mixed rice transfer gutter (old), and is re-sorted in this rotary sorting device (121). The configuration is as follows.

On the upper side of the brown rice door gutter (5), the rotary sorting device M025 is installed.
A paddy transfer trough (end) is provided which pivots on a transfer spiral (5) that receives and transfers the paddy grains sorted in the interior and transferred to the front part, and at the end of this paddy transfer trough (end), the paddy grains are transferred to the front part. This structure includes a paddy lifting device (to) that communicates with the tank (3).

The hulling device section of the hulling machine (2) includes this hulling machine (
2) is provided with an operating device MC3 [I for starting and stopping the rice huller (2). switch 0
υ, it has a stop switch (to) for stopping operation, and a control device 03 is installed inside, and this operation device (to)
The operating device for operating the dryer for drying grains can be connected to each other, and when the operating device for the huller (2) and the operating device for the dryer are connected, it can be attached to the dryer. The grain moisture detected by the moisture sensor and the mixing ratio of immature grains mixed into the grains are input to the control device (to) of the extraction device MO[I.

The control table MO3 includes a communication circuit (to) that receives communication from the operating device of the dryer, and a communication circuit (to) for receiving communication from the operating device of the dryer.
An input circuit into which the communication value communicated from is input, an input circuit 0Q into which the operation of the start switch 01+ and the stop switch (support) is input, and each input value input from these input circuits (main) and 00. The configuration includes a CPU @ which performs arithmetic and logical operations, comparison operations, etc., and an output circuit (to) which receives and outputs various commands issued from the CPU0I.

When the operation of the start switch OD is input to the control device 03, and the moisture content of grains to be hulled and the mixing ratio of immature grains are input from the dryer, the huller (2) starts and at the same time this If the input moisture value is 15% or more as set and stored in the CPU@/\, and the immature grain mixing ratio is 20% or more as set and stored, the roll opening/closing motor (5) the hulling roll (1) is controlled to start;
(1) The gap between the two is set and stored in the CPU0I, and the opening is controlled to be widened to 1'0mm.
Further, if the moisture value is 15% or less as set and memorized, and the immature grain mixing ratio is 20% or less as set and memorized, the roll opening/closing motor (5) is controlled to start, and the paddy JiJ O-/
The configuration is such that the gap between L' (1) and (1) is controlled to close so that the gap between 0 and 8, which is set and stored in the CPUc8, becomes slightly narrower.

In the invention of claim 2, when the operation of the start switch 0υ is input to the control device (to) and the moisture content and immature grain mixing ratio of grains to be hulled from the dryer are manually determined, the hulling machine At the same time as (2) starts, if the input moisture value is 15% or more as set and stored in the CPU (1), and the immature grain mixing ratio is 20% or more as set and stored in the CPU (1), then , the rotation of the roll (the variable speed motor 04 that controls the rotation of the roll 13) is controlled to a low speed rotation, and the rotation of the rotating sorting device surface is set to 50 and stored in the CPUCI.
r, p, +*m rotations, the operation of the solenoid is controlled, the separation device (ILl) is controlled to move upward, and the solenoid is controlled to open and close. The valve (B) is controlled to a half-open state, and the amount of grains supplied between the hulling rolls (1) and (1) is controlled to decrease.Moreover, the moisture value is 15% as set and memorized.
or less, and if the immature particle mixing ratio is 20% or less as set and memorized, the rotation of the variable speed motor (141) is controlled to high speed rotation, and the rotation of the rotary sorting device (the CPUG3
1, the solenoid (to) is controlled to operate, the separation device M (FIJ) is controlled to move downward, and the solenoid (to) is activated. Being controlled.

The on-off valve (b) is controlled to be fully open, and the hulling roll (
31, (This is a configuration in which the amount of grains supplied between 11 and 11 is controlled to increase.

The operating device of the dryer is connected to the operating device MO[I of the huller (2), and the moisture content of the grains to be dried and hulled and the ratio of immature grains mixed therein are detected on the dryer side. , this reproducing device (
) and then turn the start switch 0 of this operating device (to).
By operating 11, this huller (2) is started, and the grains in the dryer are transferred to the huller (21, paddy tank (2)).
3), the on-off valve in this paddy tank (3) is opened, and the grains are fed onto the hulling rolls (1), (1), and the grains are fed onto the hulling rolls (1), (11). The grains are packed in and hulled at the outer periphery of the hull, and the brown rice, unhulled rice grains, and rice husks are wind-selected as they flow down on the falling shelf (6), and the rice husks are sucked out by the dust removal device (7). and ejected from the aircraft,
The brown rice and paddy grains are transported from the rice trough (8) to the rice frying device (I).
The grains are fried in I and supplied into the polished rice tank 111+, and from this polished rice tank (■), the mixed rice is fed through the mixed rice transfer gutter (+119) into the rotary sorting device 0♂, and this rotary sorting device 0δ
The brown rice is sorted within the factory, and the brown rice is transferred @ (from 18 to brown rice sorting @
Brown rice door @a21 is selected by wind while flowing above +211
The brown rice is then fried in the brown rice frying device Q4 and discharged outside the machine.

Also, the selected paddy grains and a part of the brown rice are mixed Kido @ (to),
It is supplied to the rotary sorting device iIa through the sliding rice gutter (8) and the mixed rice transfer gutter (IQ) and is re-sorted. Also, the sorted paddy grains are transferred from the paddy transfer gutter 1 to the paddy lifting device. (to) into the paddy tank (3), and from this paddy tank (3), it is supplied to the hulling roll (lj, (11), and the hulling roll (1), (1) will be carried out.

During this hulling work, the hulling roll (
1), the gap between (1) is controlled to be wide,
Also, grains are hulled by controlling the width of the grain.

In addition to this, the rotation of the rotary sorting device 0δ that adjusts the sorting conditions may be controlled to high speed rotation or low speed rotation, or the amount of grains supplied between the hulling rolls (1) and (11) may be controlled to high speed rotation or low speed rotation. The on-off valve (to) to be adjusted may be controlled to be half-open or fully open, or the separation device (19) that separates brown rice and paddy grains may be controlled upward or downward to separate the grains. The grains are hulled.

The hulling roll (1
1, (11) By controlling the gap between grains and adjusting the sorting conditions for sorting grains, the huller (
By controlling 2) optimally for the grain to be hulled, it is possible to always perform good hulling.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is a flowchart, Fig. 3 is an overall side view of the hulling machine partially cut away, and Fig. 4 is a partially sectional view. It is an overall front view of the rice hulling machine shown in section. In the figure, the code +1) indicates a hulling roll.

Claims (1)

[Claims] 1. By detecting the mixing ratio of immature rice, the hulling roll (1)
A rice huller that is characterized by controlling the gap between the grains to be wide and narrow. 2 By detecting the mixing ratio of immature rice, the hulling roll (1)
A huller is characterized by adjusting and controlling sorting conditions for sorting brown rice while rotating while receiving the crushed rice that has been crushed by a rice huller.