JPS6164343A - Detector for removal of gluten 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 applications The present invention relates to a husking detection device for a hulling machine.

Problems to be Solved by the Invention In a hulling machine that is equipped with a hulling device that is linked to a motor and detects the hulling state of the hulled rice using a hulling sensor, During work, the husking state of the crushed rice is detected by the husking sensor, and if this husking state is not maintained constant, the husking rate will fluctuate due to differences in grain moisture, which will affect the sorting by the sorting device. It is difficult to obtain stable performance and efficiency.

Therefore, when the sorting performance and efficiency decrease, the shedding state is detected by the shedding sensor each time, and if there is a change in the shedding rate, for example, the shedding device is operated to restore the initially set shedding rate. It is necessary to repeat the adjustment operation.

Means for Solving the Problem This invention provides a skidding device (
The husking sensor ■ which detects the scraped rice that has been husked in step 2) and knows the husking state is activated by detecting an abnormal load current of the motor (1) during the husking operation by the loading and unhusking device ■. The structure of the hulling detection device for a huller is preferably constructed in an interlocking manner.

Function and Effect of the Invention The husked rice that has been husked by the husking device (2) that is operated in conjunction with the motor (1) is detected as being husked by the husking sensor (3). If the load current of the motor (1) changes abnormally from a steady state due to fluctuations in the skidding state or other changes in work conditions such as clogging of the granule, the skimming sensor O) is activated by detecting this abnormal load current. It is possible to detect the dehulled state of the washed rice.

Therefore, only when an abnormality in the load current of the motor (D) is detected, the skid sensor (3) is activated to detect the skid state.
A stable state of shedding can be maintained without repeating unnecessary measurements.

In addition, when the loading and unloading device (2) is configured to control the unloading state as in the embodiment, the unloading sensor (
If the result of detecting the rice that has been scraped in step 3) is different from the initially set value, the state of the hulling can be controlled by adjusting the hulling device.

Therefore, during the shedding work, the shedding sensor (3) is activated only when an abnormal load current of the motor (1) is detected to detect the shedding state, and when the state changes from the initially set state, the shedding device ( Since the force can be controlled, there is no fluctuation in the shedding state during one operation, and stable operations can be performed.

Embodiment In the illustrated example, the motor (
A pair of unloading rolls are installed in the loading/unloading device (■), and a control motor (■) is attached to the rolls.
The roll gap is adjusted by forward and reverse rotation.

The motor (]) is provided with a load current detection circuit (S), and a comparison circuit Cj) detects the 5 [1, detention load current] within a certain period of time.
The comparator circuit 0 compares the values with the set input values, and when a difference is detected, the skid sensor (3) is activated.

In addition, a comparison circuit (■) is provided in the removal sensor (3), and the value of the removal state detected by the removal sensor (3) is input and set, and this input set value is compared with the values input sequentially. The positive and negative differences are output to the control circuit (8), and the control motor ■
The structure is such that it is electrically controlled to rotate forward or reverse.

In addition, a separate shedding weight setting device (9) is provided, and the shedding rate to be set is input to the comparison circuit ■ and compared with the value detected by the shedding sensor ■, and the control circuit (8) controls the control motor (A). It is configured to rotate to control the skimming device (2).

The value of the skipping rate to be set is input and set to the comparator circuit (2) using the setting device (9). The hulling device (2) is driven by the motor (2) to perform the hulling operation of the paddy.

The dehulling sensor ■ is activated to detect the dehulling state of the scraped rice and output it to the comparator circuit ■, which compares it with the set input setting device rate and controls the control motor by the control circuit (8). ) is rotated forward and backward, and the shedding device (7!J) is adjusted and controlled to achieve a predetermined shedding state.

The load current of the motor (2) at this time is detected by the detection circuit 6) and set as input to the comparison circuit 0.

During the shedding work, if the shedding rate fluctuates or the efficiency changes and the abnormal load current of the motor (D is detected by the detection circuit S), the comparator circuit 0 compares it with the input set current value and the shedding sensor (Activate J to detect the state of withdrawal.

This detected value is output to the comparison circuit (■) and compared with the input set value. If there is a difference, it is output to the control circuit (8) as a positive or negative value, and the control motor () is rotated in the forward or reverse direction. The roll gap is adjusted to achieve a predetermined pulp removal rate.

Also, when an abnormal load current of the motor (1) is detected due to a factor other than fluctuation in the shedding rate, the shedding sensor ■ is activated to detect the shedding state, but since there is no difference from the input set value. There is no fluctuation in the skipping rate and it is not output to the control circuit (8).

[Brief explanation of drawings]

The figure shows one embodiment of the present invention, and FIG. 1 is a block circuit diagram. In the figure, the reference numeral (1) indicates the motor, (ri) indicates the shedding device, and the symbol (mark) indicates the shedding sensor.

Claims (1)

[Claims] 1. A husking sensor (3) that detects the husked rice that has been husked by a husking device (2) that is interlocked with a motor (1) and knows the husking state of the husking device is connected to the husking sensor (3). A hulling detection device for a huller is configured to be operated in response to detection of an abnormal load current of a motor (1) during hulling operation by a husking device (2). 2. A husking detection device for a rice huller according to claim 1, which is configured to be interlocked to adjust and control the husking state of the husking device (2) when the abnormal load current is detected.