JPS63166438A - Gluten removing device in 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] [Industrial application field] The present invention relates to a devolatilization device in a rice huller.

[Conventional technology] It is configured to automatically adjust the gap between the devolatilizing rolls.

[Problems to be Solved by the Invention] However, if the work is continued when the motor is malfunctioning due to a malfunction in the parts that make up the adjuster that performs automatic adjustment, such as a malfunction in the motor itself or a poor contact in the connector, The devolatilization rate may not be achieved, or the devolatilization rate may be high, causing damage to brown rice.

[Means for Solving the Problem] This invention aims to prevent a decrease in the devolatilization rate and the occurrence of damage by notifying a malfunction in the gap adjustment of the devolatilizing roll, and uses the following technology. measures were taken.

That is, a devolatilization rate calculation means that can determine whether it is paddy or rice from the information output from the paddy/rice discrimination means and calculate a devolatilization rate, and a devolatilization rate setting that can set the devolatilization rate. and a devolatilization roll 6 based on the set devolatilization rate and the measured devolatilization rate.
A devolatilization device in a rice huller is configured to automatically adjust the gap and output an abnormality when the measured devolatilization rate is larger than or smaller than the set devolatilization rate by a predetermined value. do.

[Operation] The devolatilization rate calculation means determines whether the grain is paddy or rice from the information output from the paddy/rice discrimination means, and calculates the devolatilization rate when a predetermined number of grains is reached. The measured devolatilization rate is compared with the preset devolatilization rate, and if the measured devolatilization rate is higher than the set devolatilization rate, the gap between the devolatilization rolls 6 is widened, and if it is lower, the devolatilization rate is lower than the set devolatilization rate. The gap between the volatilizing rolls 6 is narrowed to automatically adjust the gap.

Then, when the measured devolatilization rate is greater than a predetermined value or smaller than a predetermined value, it is determined that there is an abnormality and an abnormality is output.

[Effect] Since the gap between the devolatilization rolls 6 is automatically adjusted, a devolatilization rate close to a preset devolatilization rate can be obtained, and the efficiency of the hulling operation can be improved. In addition, if the measured devolatilization rate is high or low, an abnormality is output, so it is possible to prevent poor sorting and clogging due to low devolatilization rate, and also to prevent the occurrence of damaged rice due to high devolatilization rate. I can do it.

[Example] Hereinafter, an example of the present invention will be specifically described based on the drawings.

First, to explain its configuration, the huller 1 is equipped with a devolatilizer [2] on the upper part of the machine, and a mixed rice sorting device 3 equipped with a cylindrical rotary sorter having a large number of depressions on the inner circumferential surface.
A wind selection device 4 is provided at the bottom of the fuselage. The devolatilization device 2 is provided with a devolatilization roll 6 which is rotatably installed in the casing 5 in the direction of the arrow. Among the devolatilizing rolls 6, one devolatilizing roll A has a movable plate 7 whose lower part is pivotally connected.
It is constructed in the middle of the The upper end of the movable plate 7 is screwed into a threaded portion 9 formed at one end of the adjustment shaft 8. A bottle 10 is inserted through and fixed to the other end of the adjustment shaft 8, and both ends of the bottle 10 are formed on the inner surface of a rotating case 11 that houses the ends of the adjustment shaft 8. It is provided so as to be able to engage with the rib 12. An adjustment drive gear 15 that meshes with a motor gear 14 attached to the shaft end of a geared motor 13 is removably fixed to the side end of the rotating case 11 with a screw. 16 is the rotating case 1
This is a regulating bolt that regulates the movement of 1 in the thrust direction.

Therefore, when the geared motor 13 rotates, this rotational power is transmitted to the rotating case 11 via the adjustment drive gear 15 meshing with the motor gear 14, so that the rotating case 7
At the same time, the rib 12 rotates, and the bottle 10 and this bottle 10
The adjusting shaft 8, which is integrally constructed with the above, is rotated. When the geared motor 13 rotates normally, the threaded part of the movable plate 7 moves in the direction of arrow A around the pivot part, so the devolatilizing roll A also moves in the same direction and moves in the other direction. On the contrary, when the geared motor 13 reverses, the movable plate 7 and the devolatilizing roll A move in the direction opposite to the direction of arrow A to narrow the gap between the rolls and prevent contact between the rolls. That's what I do.

Further, a funnel 17 is provided in the upper part of the casing 5, and a grain sensor 18 is provided in the lower part of the funnel 17 to detect when the amount of grains is below a predetermined amount.

Further, the devolatilizing roll 6 is provided on the outer wall of the wind selection device 4.
A paddy/rice malt separation device that takes in sample grains that are part of the grains that have undergone the devolatilization process and distinguishes between paddy and brown rice! 19
is detachable. And the paddy/rice malt separation device f
19 is equipped with a photosensor (not shown) consisting of a light-emitting element and a light-receiving element, and the reference voltage (for example, 70
A voltage of % or more is considered paddy, and a voltage lower than that is considered brown rice.

) is configured to measure.

Reference numeral 20 denotes a shutter provided between the devolatilizing roll 6 and the funnel 17, and a shutter sensor 21 (limit switch in the embodiment) for detecting opening/closing of the shutter 20 is provided nearby. 22 is a thrower that supplies the dropped rice to the mixed rice sorting device 13, and 23 is the mixed rice sorting device! This is a thrower that fries the finished rice sorted in step 3 outside the machine. 24 is Kazesenso! ! 4
This is an alarm buzzer that is removably attached to the outside wall of the building. In addition,
The warning means may be a lamp 25, a sound, etc., and is not limited to a buzzer, and a plurality of different warning means may be provided.

To explain the block circuit of FIG. 3, 26 is an arithmetic control unit (hereinafter referred to as CPU) of a microcomputer (not shown) having a memory (not shown) containing data and control programs. , performs arithmetic and logical operations and comparison operations, and the information inputted to the CPU 26 via the input interface 27 includes the paddy/rice information detected by the paddy/unreached device 19 and the grain sensor 1
8, shutter opening/closing information output from the shutter sensor 21, and CT (current transformer) 28.
There are load information on the motor 27, which is a drive source for each rotating part of the machine body, which is outputted through the devolatilization rate setting device 29, and devolatilization rate setting information which is outputted through the devolatilization rate setting device 29. In addition, the devolatilization rate setting device 2
Various devolatilization rates (for example, 95
%, 90%, 85%, 80%, etc.). Also,
The drive command signals output from the CPU 26 via the output interface 30 include a drive command signal for forward or reverse rotation of the geared motor 13, an alarm drive command signal for operating the alarm buzzer 24, and an alarm for lighting the alarm lamp 25. There is a drive command signal.

The CPU 26 has the functions described below. That is,
■ Compare and calculate the measured load current (measured value) of the motor 27 obtained by taking in the information output from the C728 and a preset setting value, and if the measured value is larger than the setting value, the guard motor 13 Outputs a forward rotation drive command signal to
If it is smaller, a reverse drive command signal is output to the geared motor 13. ■Incorporate information on paddy/unidentified rice and calculate the reference voltage for distinguishing between paddy and rice. ■ Compare and calculate the measured voltage and reference voltage to determine whether it is paddy or brown rice. ■Calculate the devolatilization rate when the measured data reaches a predetermined number. ■Compare and calculate the measured devolatilization rate and the set devolatilization rate set by the devolatilization rate setting device 29, and if the measured devolatilization rate is larger than the set devolatilization rate, the guard motor 13 is driven in reverse. A command signal is output, and if it is small, a drive command signal for normal rotation is output to the geared motor 13. (2) A higher abnormal devolatilization rate (for example, 98%) and a lower abnormal devolatilization rate (for example, 50%) inputted in advance are compared and calculated with the measured devolatilization rate, respectively.

Next, the control operation will be explained using the flowchart of FIG.
When opened, the rice is devolatilized by the devolatilizing roll 6 rotating in the direction of the arrow and falls. And after being selected in the selection room 4.

The fried grains are supplied by the thrower 22 into the mixed rice sorting device 3, where they are sorted into brown rice and mixed rice. Then, the brown rice is wind-selected in a wind-selecting room 4, and then fried and discharged outside the machine in a thrower 23.

In such work, first, load control is performed (step 10). That is, the CPU 26 takes in the load current of the motor 27 output from the CT 28, compares it with a preset value, and controls the geared motor 13.
The gap between the devolatilizing rolls 6 is automatically adjusted by outputting a drive command for forward or reverse rotation.

After devolatilizing the rice for a predetermined time or a predetermined amount, a part of the rice that has been rubbed off by the devolatilization roll 6 is continuously taken into the paddy/unfinished rice separation device 19, and here, First, discrimination data (discrimination voltage) for discriminating between paddy and brown rice is measured (step 20), and if it is determined to be OK (
Step 30) Next, this discrimination data is compared with the subsequently obtained measured voltage to discriminate between paddy and brown rice.

When this measurement data (which may be the number of measured grains) reaches a predetermined number, the CPU 26 calculates the devolatilization rate (step 40), and then compares this measured devolatilization rate with each preset abnormal devolatilization rate. Calculate (step 50) and CPU2
6 determines that the measured devolatilization rate is abnormally high (step 60
) and an alarm drive command signal to sound the alarm buzzer 24 and turn on the alarm lamp 25.

Next, when the CPU 26 determines that the measured devolatilization rate is abnormally low (step 70), the same operation as in the case where the measured devolatilization rate is determined to be abnormally high is performed and an alarm is issued.

Therefore, the operator can recognize that an abnormality has occurred due to this alarm, and can therefore stop the motor 27 and check the devolatilization rate 2.

If the devolatilization rate is within the range of the upper and lower abnormal devolatilization rates, the CPU 26 compares and calculates the measured devolatilization rate and the set devolatilization rate (step 80), and the measured devolatilization rate is determined to be the set devolatilization rate. If it is larger, a forward rotation drive command signal is output to the geared motor 13 (step 90) to widen the roll gap of the culling roll 6, and on the other hand, if it is smaller, a reverse rotation drive command signal is output to the geared motor 13 (step 90). to narrow the gap between the devolatilizing rolls 6 (step 100).

In this way, if the devolatilization rate becomes abnormal, the operator can quickly learn of this abnormality, thereby preventing clogging and poor sorting due to low devolatilization, and preventing the occurrence of damaged rice due to high devolatilization. and quality deterioration can be prevented.

[Brief explanation of the drawing]

The figure shows one embodiment of the invention. Figure 1 is a front view of the rice huller, Figure 2 is a cross-sectional view of the devolatilization device,
FIG. 3 is a block circuit, and FIG. 4 is a flowchart. Representative Masataka Iseki

Claims (1)

[Claims] A de-dusting rate calculation means that can determine whether it is paddy or rice from the information output from the paddy/rice discriminating means and calculate a de-dusting rate;
and a removal rate setting means capable of setting the removal rate, and is configured to automatically adjust the gap between the removal rolls 6 based on the set removal rate and the measured removal rate, so that the measured removal rate is A dehulling device in a rice hulling machine configured to output an abnormality when the dehulling rate is greater than a predetermined value or smaller than a set dehulling rate.