JPS61187942A - Gluten removing controller for rice huller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a husking control device for a huller, and can also be used in a hulling plant.

2. Description of the Related Art A load control device is known that detects the shedding load of a shedding device and then stabilizes the shedding.

Problems that the invention aims to solve: Detecting paddy using a sensor that distinguishes between paddy and brown rice,
In a husking control device that performs husking control while obtaining the husking rate of the husking device by distinguishing between paddy and brown rice, the detection standard of the sensor for discriminating paddy is constant. It goes without saying that this is necessary, but if the paddy to be detected changes (1) For example, if the size, drying state, type, etc. of the paddy change significantly during paddy detection and discrimination using a photosensor, It is difficult for this sensor to perform accurate discrimination, and furthermore, such changes in the paddy occur when the type of paddy changes during the hulling operation, or due to changes in the degree of dryness, etc., and the dehulling performance is affected. Easy to be influenced.

Means for Solving the Problems This invention uses a shedding device (
2) Compare the hulling rate obtained by detection by the hulling rate sensor (3) of the scraped rice that is scraped from 2) with a preset hulling rate, and control the hulling rate to be constant. In the rate control device (4), a paddy supply sensor (6) that detects the presence or absence of paddy in the paddy funnel (5) that supplies paddy to the husking device (2) detects the absence of paddy. , or the paddy supply shutter (7) of the paddy funnel (5) is closed.
A load control device (8) is provided that detects the load of the shedding device (2) by continuing for a fixed period of time, compares this load with a preset set load, and controls the shedding to be constant. During the control action of the load control device (8), the huller is removed, which is provided to update the paddy discrimination standard information of the rate sensor (3) to the paddy discrimination standard information based on this new paddy. This is the configuration of the control device.

Function of the invention The hulling work is carried out by supplying paddy to a funnel (5) and driving the hulling device (2). When the supply shutter (7) is opened, the paddy is supplied to the hulling device (2) to be hulled, but when the hulling rate control is working, the hulling rate sensor (
Based on the criteria for detecting and determining paddy in 3), unhulled paddy is detected and determined from the polished rice that has been hulled by the hulling device (2), and the hulling rate is obtained. During this dehulling action, the paddy supply sensor (6) detects the paddy in the paddy funnel (5) and the paddy supply shutter (7) is open, so the dehulling rate sensor (3) detects the paddy. The phuting rate is compared with the preset phutting rate of the above-mentioned preset standard, and the phutting rate is controlled so that the phutting rate is in line with the set phutting rate.

During this operation, if the paddy supply sensor (6) detects that there is no more paddy in the paddy funnel (5), or if the paddy supply shutter (7) is closed, this state will remain for a certain period of time. When the paddy is supplied to the paddy funnel (5) and the paddy supply shutter (7) is opened, the phulling rate sensor (3) detects the phus again based on the same paddy discrimination criteria as mentioned above. The shedding rate is controlled by rate detection, but if the paddy supply sensor (6) does not detect paddy even after the certain period of time has elapsed, or if the paddy supply shutter (7) is in a closed state, this When the paddy supply sensor (6) detects paddy after a certain period of time and the paddy supply shutter (7) is opened, control is performed by the husking load control device (8), and the husking device (2)
) is compared with a preset set load to control the shedding to be constant, and during this time the paddy discrimination standard of the shedding rate sensor (3) is updated, and this When the shedding rate sensor (3) becomes capable of detecting the shedding rate, the shedding control is switched from the shedding load control device (8) to the shedding rate control device (4) as described above.

Effects of the Invention In this way, in controlling the hulling rate by detecting the hulling rate by the hulling rate sensor (3), it is possible to prevent the rice from running out of paddy in the hull funnel (5) or closing the rice supply shutter (7). After continuing for a certain period of time, when the state of restarting the husking is reached, the husking rate control is restarted after the paddy discrimination standard of the husking rate sensor (3) is updated. Even if the type of paddy supplied to this paddy funnel (5) changes and the detection criteria are different,
After this paddy detection and discrimination according to the changed paddy, the hulling rate control will be performed, and this hulling rate sensor (
Since the updating of the discrimination criteria in 3) is carried out while the control by the shedding load control device (8) continues, the shedding control is not interrupted for a long time, and the shedding control can be performed smoothly. Can be done accurately.

Embodiment In the illustrated example, the dehulling device (2) consists of a pair of left and right dehulling rolls (9) (9), which are rotated in mutually opposite directions at a predetermined circumferential speed X. Depu roll (9)
By moving one side closer to or away from the other, the roll gap can be adjusted and the shedding rate can be adjusted or changed. Adjustment of the roll gap, etc. can be done using the handle (10), It is configured to be operated or linked by a rate setting switch (11), a control motor (12), etc.

A paddy funnel (5) is installed on this husking device (2), and when the lower paddy supply shutter (7) opens, the paddy in the paddy funnel (5) is transferred between the husking rolls (9). The paddy funnel (5) has a structure in which the paddy is supplied to the gap.
A paddy supply sensor (6) is provided to detect the presence or absence of paddy inside.

The rate sensor (3) consists of a photosensor, and therefore has a configuration that can be updated and changed, and is used as a discrimination standard for paddy by averaging only the peak values of the received light voltage that are higher than a predetermined value. In addition, the number of grains detected only as paddy grains is calculated from a certain number of grains of this crushed rice, and the ratio of the number of grains of unhulled brown rice to the fixed number of grains is calculated. This is a configuration for calculating the shedding rate.

The shedding rate control mechanism (10) uses information obtained by comparing the shedding rate obtained by the shedding rate sensor (3) and the setting rate set by the setting switch (11) using a comparator (15). The gap between the rolls (9) is controlled by a servo motor (12) so that the shedding rate of the shedding device (2) follows the set shedding rate.

The paddy supply shutter (7) of the paddy funnel (5) is provided with a shutter sensor (1B) that detects the opening and closing of this shutter, the paddy supply sensor (6) detects paddy, and the shutter sensor (16) detects the opening and closing of the paddy funnel (5). ) detects the opening of the shutter, it operates in conjunction to input a comparison signal to the comparator (15) via the AND circuit (17) (1B), etc., and the paddy supply sensor (6) detects when there is no paddy. or when the shutter sensor (16) detects the closing of the shutter, the OR circuit (13), the timer (2G), and the AND circuit (18)
) etc. to input a comparison signal to the comparator (15).

The configuration of the load control device (8) includes a load sensor (21), a reference shedding load setter (22), a comparator (23), a shedding load control mechanism (24), a servo motor (12), etc. Of these, the load sensor (21) is connected to the shedding device (2).
) when the depudding effect is not performed with the depudding roll (9) (
9) The current of the power motor during driving is detected as a no-load current, and the difference between this and the shedding load current detected when the shedding is activated is determined as the shedding load, and the standard shedding load setting device (22) is used to set the shedding load to be used as a standard according to the shedding rate to be obtained using the shedding rate setting switch (11), etc., and the comparator (23) is connected to these load sensors (2).
This is to compare the shedding load according to 1) with the standard shedding load,
The husking load control mechanism (20) controls and interlocks the servo motor (12) based on the input from the comparator (23), and explains the standards set for the husked rice that is husked by the husking device (2). It is controlled in accordance with the rate.

The load sensor (21) of this shedding load control device (8) is
This is input to update the paddy judgment standard of the phus removal rate sensor (3) after a certain period of time has elapsed by the timer (20), and the paddy judgment standard update function of the phus removal rate sensor (3) is activated to update the paddy judgment standard. Until the control device (4) starts the shedding rate control, the system is linked to allow the shedding load control device (8) to perform the control.

(25) is a wind sorting device that sorts the smooth rice, (2B) is a sorting device that separates paddy and brown rice, and (27) is a sorting device for the smooth rice! (28) is a grain hoisting machine that hoistes the grain to the paddy funnel (5);
29) is a grain frying machine that fries brown rice.

For the husking operation, feed the paddy into the paddy funnel (5), set the husking rate setting switch (11) appropriately, and turn the husking rolls (9) (9).
The skidding rate setting switch (
11), the shedding rate control device (4) sets the shedding rate information that should be the control standard, and the shedding control device (8) sets the shedding load information that should serve as the control standard.

When the supply shutter (7) is opened in this state, the shutter sensor (1B) detects that the shutter is open, so the unloading 'j! 1
The paddy is supplied to (2) and phued, and the load sensor (21) detects the phus load from this removed rice and compares it with the set standard phus load. A control mechanism (24) performs load control to keep the shedding constant. Meanwhile, during this period, the phus removal rate sensor (3) updates the paddy judgment standard based on the detection voltage of paddy by detecting the removed rice, and after the new paddy judgment standard, the phus removal rate sensor (3) detects the phus removal rate. The action is started, and simultaneously with this start, the shedding load control action is stopped.

The control by this pulping rate control device (4) is carried out by a pulping rate sensor (3) that discriminates the paddy and determines the ratio of paddy to brown rice within a certain number of grains.
Alternatively, the rate control mechanism (14) calculates the rate of deflation by calculating the value of brown rice for a fixed number of grains, and compares this rate with the ultimate standard rate of deflation using a comparator (15).
The servo motor (12) is driven to control the gap between the rolls (9) so that the shedding rate is in line with the standard shedding rate.

When the paddy funnel (5) runs out during the hulling process, the paddy supply sensor (6) detects this, or the supply shutter (
7) is closed, the shutter sensor (16) detects this, and the timer (20) is activated.
When the paddy supply sensor (6) detects paddy and the shutter sensor (18) detects the opening of the paddy supply shutter (7) within a certain period of time according to the comparator (10), the comparator (1
5) to restart the control by the same phulling rate control device (4) as described above, but when the above-mentioned certain period of time has elapsed, the paddy supply sensor (6) does not detect paddy. When the opening of the paddy supply shutter (7) is detected by the shutter sensor (IB), load control by the husking load control device (8) is started as described above, and during this time the husking rate sensor (3) is detected. ), the paddy judgment criteria are updated, and control is switched from the husking load control device (8) to the husking heavy load am device (4), and the husking rate control is performed again.

In addition, the mechanism for obtaining the paddy judgment standard of the phus removal rate sensor (3) is such that the phus removal rate sensor (3) calculates the paddy removal rate simply by detecting the washed-out rice, and the paddy judgment standard is determined separately. By detecting paddy with an independent paddy sensor (1) installed in a paddy funnel (5), for example, the updating device (1) uses this paddy detection voltage as paddy judgment reference information to adjust and set the phulling rate sensor (3).
3) may be provided. In this case, if the paddy sensor (1) is provided in the funnel (5), a husking device (2) may be provided in order to detect the paddy supplied to the paddy funnel (5). ), the paddy judgment criterion information for newly supplied paddy can be obtained without waiting for the dehulling action at step ), so the operation time for load control can be shortened.

[Brief explanation of drawings]

The figures show one embodiment of the invention, with FIG. 1 being a block circuit diagram and FIG. 2 being a front view. In the figure, code (1) is a paddy sensor, (2) is a husking device, and (3) is a paddy sensor.
) is the husking rate sensor, (4) is the husking rate control device, (5) is the paddy funnel, (6) is the paddy supply sensor, (7) is the paddy supply shutter, and (8) is the husking load control device. show.

Claims (1)

[Claims] The husking rate obtained by detection by the husking rate sensor (3) of the peeled rice that is pushed out from the husking device (2) based on certain paddy discrimination standard information, and the preset husking rate. A shedding rate control device (4) that compares and controls the shedding rate to keep it constant.
Then, the paddy supply sensor (6) that detects the presence or absence of paddy in the paddy funnel (5) that supplies paddy to the hulling device (2) detects the absence of paddy, or the paddy funnel (5) detects the absence of paddy. Paddy supply shutter (
7) is closed for a certain period of time, the load on the shedding device (2) is detected, and this load is compared with a preset set load to keep the shedding constant. A load control device (8) is provided to control the paddy, and during the control action by the load control device (8), the paddy discrimination standard information of the phulling rate sensor (3) is changed to the paddy discrimination standard information based on this new paddy. The husking control device for the huller was installed to be updated.