JP3182712B2 - Automatic rice milling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic rice mill.

[0002] A rice milling apparatus is used to whiten brown rice, but it is very dangerous if stones are mixed in the brown rice.

[0003] For this reason, a milled rice mill that can remove stones from brown rice is used. This device can be used for destoning, milling,
And a single-pass milling machine, and when the operator turns on the power, the motors of each machine start simultaneously. When the shutter is opened after the raw material is put into the raw material hopper of the destoner, the raw material is separated into stone and brown rice by the destoner.

After that, the brown rice is conveyed to the rice polishing hopper by the graining machine, and flows down the falling cylinder to be supplied to the polishing room of the rice mill.

[0005] Brown rice in the whitening room is whitened while receiving whitening pressure by the rotation of the whitening roll, and is discharged as white rice outside the machine. After finishing the milling operation, the operator turns off the power and stops the operation of the apparatus.

[0006]

The prior art has the following problems. (1) In the conventional apparatus, since each machine starts and stops at the same time, the motors are driven until the milling machine finishes the work even though the work has been finished in the stone cutter and the graining machine. Continue. Therefore, useless power is used. Therefore, it is conceivable to stop the operation of the machine in the order in which the work has been completed. To perform this operation, the operator must constantly monitor the operation status until the entire rice milling process is completed.

(2) In the conventional apparatus, the capacity of the rice polishing hopper must be made larger than the capacity of the raw material hopper, so that the height of the apparatus cannot be reduced below a certain level.
As a result, the ceiling height of the workplaces of farmers was restricted, and there was no remarkable spread to general farmers. Therefore, it is conceivable to reduce the height of the apparatus by making the capacity of the rice polishing hopper smaller than the capacity of the raw material hopper.
Brown rice that is successively sent from the grain mill overflows from the rice polishing hopper, and the entire apparatus becomes inoperable.

(3) In the conventional apparatus, the browning pressure in the rice mill varies because brown rice cannot be automatically supplied to the rice mill at a constant rate. As a result, the rice mill is clogged and white rice is unevenly polished.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to enable a raw material to be supplied to a rice mill at a constant rate without overflowing or emptying the raw material from a rice hopper.

Another object is to realize an unmanned operation and at the same time to make the height of the apparatus compact and spread it to general farmers.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a destoning machine having a destoning hopper, a loading sensor provided on the destoning hopper, for detecting the presence or absence of a reference amount of raw material, and a destoning machine. A destoning motor to be driven, conveying means for supplying the raw material selected by the destoning machine to a rice milling hopper, and a conveying sensor provided in the rice milling hopper for detecting the presence or absence of a reference supply amount of the raw material. A transport motor for driving the transport means, a loading transport control means for controlling the two motors based on output signals of the loading sensor and the transport sensor, and a drop cylinder for connecting the rice hopper and the rice milling machine. A drop sensor provided in the drop cylinder to detect whether the raw material has flowed down, a rice polishing motor for driving the rice polishing machine, and a rice polishing control means for controlling the rice polishing motor based on an output signal of the drop sensor; Automatic rice milling with The input / transport control means simultaneously starts the stone removal motor and the transport motor based on the detection signal indicating the presence of the reference input amount of the input sensor, and after a predetermined time elapses based on the detection signal indicating the absence of the reference input amount. The two motors are stopped simultaneously, the two motors are simultaneously stopped after a lapse of a predetermined time according to the detection signal indicating that the reference supply amount is present from the conveyance sensor, and both motors are simultaneously started according to the detection signal indicating that the reference supply amount is absent. The control means is intended to achieve the above object by an automatic rice milling machine, characterized in that a rice milling motor is started by a signal indicating that the raw material is present from the drop sensor, and the motor is stopped after a lapse of a predetermined time by a signal indicating no raw material. Is what you do.

When brown rice is put into a hopper for removing stones from an automatic rice milling machine that is powered on, when the brown rice in the hopper exceeds the reference input amount, the input sensor inputs and sends a signal indicating that there is a reference input amount. Send to control means. The control means starts the stone removing motor and the frying motor.

The brown rice separated from the stone by the stone remover is supplied to a rice milling hopper by a grain mill.

When the brown rice in the rice hopper flows down in the dropping cylinder and enters the polishing room of the rice mill, the drop sensor sends a signal indicating the presence of brown rice to the rice polishing control means. The control means starts the rice polishing motor.

When the amount of brown rice in the hopper for removing stones is reduced to the reference input amount, the input sensor sends a signal indicating that there is no reference input amount to the input conveyance control means. The control means simultaneously stops the stone removing motor and the transport motor after a predetermined time has elapsed.

When the brown rice in the rice polishing hopper decreases to the reference supply amount, the transfer sensor sends a signal indicating that there is no reference supply amount to the input transfer control means. After a lapse of a predetermined time, the input / transport control means stops both the motors at the same time and stops the supply of brown rice into the rice polishing hopper.

When the brown rice in the rice polishing hopper falls on the rice mill and decreases to the reference supply amount, the transport sensor again detects the absence of the reference supply amount and sends the signal to the input transport control means. The control means starts both the motors at the same time and replenishes the brown rice into the rice polishing hopper.

When there is no more brown rice flowing down from the rice hopper, the drop sensor detects that there is no raw material and sends a detection signal to the rice polishing control means. The control means stops the rice polishing motor after a predetermined time has elapsed.

[0019]

An embodiment of the present invention will be described with reference to the accompanying drawings. The crushing and milling device includes a crusher 1 for removing stones mixed in raw materials, for example, brown rice M, a single-pass milling machine 2 for polishing brown rice M, a crusher 1 and a milling machine 2. And a frying machine 3 for connecting the

The stone removing machine 1 includes a stone removing motor 6 of 200 V and 0.1 kW, a stone removing hopper 10 for storing raw materials, and a sorting unit 1A for removing stones in the raw materials.

When a raw material of a standard input amount, for example, 1 to 2 kg, is supplied to the inner wall surface 10a of the stone removing hopper 10, a signal of the standard input amount is transmitted, and the raw material M decreases. An input sensor 5 for sending a signal indicating that the reference input amount is not provided when the reference input amount becomes equal to or less than the reference input amount is provided.

As the input sensor 5, a transmission type optical sensor as shown in FIGS. 3 and 4 is used. This transmission type optical sensor includes a pair of a light emitting element 5a and a light receiving element 5b.

When the raw material M in the hopper 10 for removing stones exceeds the reference input amount L1, the light L from the light emitting element 5a is completely blocked by the raw material M, and does not enter the light receiving element 5b to be in a light shielding state. When the amount of the raw material M decreases and becomes equal to or less than the reference input amount L1, the light L of the light emitting element 5a enters the light receiving element 5b, so that the light is transmitted.

The sensor only needs to be able to detect the reference input amount L1 in the raw material hopper 10, and for example, a reflection type optical sensor, a mechanical switch, a particle sensor, or the like may be used.

The milling machine 3 feeds the raw material M supplied from the sorting unit 1A of the destoner 1 by driving a 200 V, 0.1 kW milling motor 7 to a milling hopper above the milling machine 2 by an elevator (not shown). To 4.

The rice polishing hopper 4 is formed smaller than the stone removal hopper, and its height from the floor F is h. On the upper part of the inner wall surface 4a of the rice polishing hopper 4, when a reference supply amount, for example, 15 kg of raw material is supplied, a signal indicating that the reference supply amount is present is sent out, and the raw material M decreases and becomes less than the reference carry amount. A conveyance sensor 9 for sending a signal indicating that there is no reference supply amount is provided when this happens.

As the transport sensor 9, a transmission type optical sensor as shown in FIGS. 5 and 6 is used. This transmission type optical sensor has a pair of light emitting element 9a and light receiving element 9b.

The raw material M in the rice hopper 4 is supplied to the reference supply amount L11.
Then, the light from the light emitting element 9a is completely blocked by the raw material M, does not enter the light receiving element 9b, and is in a light shielding state.
Also, when the raw material decreases and becomes equal to or less than the reference supply amount L11,
Since the light L from the light emitting element 9a enters the light receiving element 9b, it is in a light transmitting state.

This sensor only needs to be able to detect the reference supply amount L11 in the rice polishing hopper 4, and for example, a reflection type optical sensor, a mechanical switch, a particle sensor or the like may be used.

The single-pass milling machine uses the rice milling hopper 4
A milling chamber 12 containing a milling roll 12a, a drop cylinder 13 connecting the hopper 4 and the milling chamber 12, a milling motor 16 for driving the milling roll 12a, and a cyclone 30
And

The fall tube 13 is provided with a fall sensor S for detecting the presence or absence of the flow of the raw material. This drop sensor S
It is, as shown in FIG. 8, and a pair of light emitting elements 14 facing through a dropping path 12A in the drop tube 1 third light receiving element 15.

When the raw material M flows down from the rice polishing hopper 4, the sensor S cuts off the light L of the light emitting element 14 and does not enter the light receiving element 15, and sends out a signal indicating that the raw material is present. When the flow of the raw material M stops, the light L of the light emitting element 14 enters the light receiving element 15 and sends out a signal indicating that there is no raw material. This drop sensor S
Is projected into the falling path 12A, so that the falling raw material comes into contact and is washed. Therefore, since the light emitting element 14 and the light receiving element 15 can be kept clean at all times, the sensor function can be maintained satisfactorily.

This sensor only needs to detect the raw material in the falling path 12A. For example, a reflection type optical sensor, a mechanical switch, a particle sensor, or the like may be used.

The motor 6 for removing stones and the motor 7 for transporting are controlled based on output signals from the input sensor 5 and the transport sensor 9. The input transfer control circuit TH is configured as shown in FIG.

The input sensor 5 and the transport sensor 9 are connected to the input side of an AND circuit 20. Input sensor 5 and AN
A delay timer 8 is provided between the delay timer 8 and the D circuit 20.

The timer 8 is an off-delay type delay timer, which is turned off after a lapse of a predetermined time, for example, 20 seconds, after the input sensor 5 detects that there is no reference input amount. After the input sensor 5 detects that there is no reference input amount, the motor 6 continues to operate until the whole amount of the raw material M has passed through the destoner 1 and is conveyed to the rice polishing hopper 4 by the graining machine 3.

A delay timer 11 and a polarity reversing inverter 19 are provided between the transport sensor 9 and the AND circuit 20. The delay timer 11 is an off-delay type delay timer, which is turned on after a lapse of a predetermined time, for example, 20 seconds, after the conveyance sensor 9 detects that there is no reference supply amount. Transport sensor 9
However, after detecting the reference supply amount, the motor 7 is continuously operated until the sensor is sufficiently covered with brown rice and the operation is stabilized.

The inverter 19 converts the polarity of the output signal of the transport sensor 9 into the same polarity as that of the output signal of the input sensor 5. The AND circuit 20 calculates the logical product of both outputs of the sensor 8 and the sensor 9.

On the output side of the AND circuit 20, there is provided a relay 21 for simultaneously turning on and off the stone removing motor 6 and the conveying motor 7 according to the output of the AND circuit 20.

The drop sensor S is connected to a rice polishing motor 16 via a rice polishing control circuit C. The control circuit C includes:
A power switch 41 connected to the power supply 40 and a drop sensor S
A delay circuit 42 connected to the light receiving element 15 and a relay 43 connected to the rice polishing motor 16 are provided.

The delay circuit 42 is turned off after a predetermined time, for example, 5 seconds, has elapsed after the light-receiving element 15 detects that there is no raw material, and stops the operation of the rice polishing motor 16. By operating the rice polishing motor 16 for a while even after the fallen raw material has disappeared in this way, the pressure in the polishing chamber is reduced, and it is easy to restart.

The operation of this embodiment will be described with reference to FIGS. When the power switch is turned on, the input sensor 5, the transport sensor 9, and the drop sensor S are started, and the input transport control means TH and the rice polishing control means C are also controlled.

An operator puts brown rice M into the hopper 10 for removing stones, and the inside of the hopper 10 is filled with a reference amount, for example, 1-2.
Kg or more, the light L of the light emitting element 5a of the input sensor 5
Is blocked, and does not enter the light receiving element 5b. At this time, the input sensor 5 sends a signal indicating that there is a reference input amount to the input transfer control means T.
H.

The control means TH drives the destoning motor 6 and the graining motor 7 simultaneously, and the destoning machine 1 and the graining machine 2
And start.

The starting material that has fallen onto the sorting section 1A by starting the destoner 1 is sorted, and only brown rice is removed from the lower part 7 of the graining machine 3.
Fall to a.

The brown rice M collected in the lower part 3a of the graining machine 3
It is conveyed from the discharge pipe 3C of the upper part 3b to the rice hopper 4 by an elevator (not shown).

The brown rice in the rice polishing hopper 4 flows into the whitening room 12a of the rice polishing machine 2 through the dropping path 13A of the drop cylinder 13, and at this time, the light L of the light emitting element 14 of the drop sensor S is changed by the brown rice M. Since it is shut off, it does not enter the light receiving element 15.

For this reason, the drop sensor S sends a signal indicating the presence of brown rice to the rice milling control means C. The control means C is a relay 43
Is closed and the rice polishing motor 16 is started.

When the amount of brown rice M in the hopper 10 for removing stones gradually decreases and becomes less than the reference input amount of 1-2 kg, the input sensor 5
Detects that there is no material, and issues an OFF signal after a lapse of a predetermined time, for example, 20 seconds, by the delay timer 8.

After the sensor 5 detects that there is no raw material, the whole raw material M passes through the destoner 1 and when the raising of the rice to the rice hopper 4 by the milling machine 3 is completed, both motors 6 and 7 are stopped at the same time. .

The brown rice M in the rice polishing hopper 4 is equal to the standard supply amount,
For example, when the weight is 15 kg or more, the light L of the light emitting element 9a of the transport sensor 9 is blocked, and does not enter the light receiving element 9b. Therefore, the sensor 9 detects the reference supply amount, and after a lapse of a certain time by the delay timer 11, stops the motors 6 and 7 simultaneously until the sensor 9 is covered with the raw material M and the operation is stabilized. Let it.

By controlling the operation in this manner, the raw material M does not overflow from the hopper 4 even if the milling hopper 4 is made much smaller than the stone removal hopper 10 to reduce the capacity.

The brown rice M in the rice polishing hopper 4 falls into the polishing chamber 12 by a fixed amount, gradually decreases, and finally becomes empty.
At this time, since the light L of the light emitting element 14 of the drop sensor S enters the light receiving element 15, the sensor S detects that there is no raw material and issues a signal. This signal is transmitted through a delay circuit 42 to a relay 43
Operate.

At this time, since the rice polishing motor 16 stops for a predetermined time, for example, 5 seconds after the detection of the absence of the raw material,
The operation is stopped when the whitening pressure in the whitening chamber 12 is reduced. Therefore, restart of the motor 16 becomes easy.

The crusher 1 is superior to the milling ability of the polisher 2, but the raw material M always accumulates in the hopper 4 for milling, and the crusher 1 and the graining machine 3 are controlled by the output of the transport sensor 9. Repeat the operation stop.

Since the crusher 1 has a sorting capability higher than that of a large-scale rice mill, the crusher 1 does not have a shortage of raw materials in the rice hopper 4 due to a lack of capacity, so that the rice mill 2 is not stopped. .

If it is desired to stop the rice milling machine 2 during the rice polishing operation, the shutter plate 17 above the drop cylinder 13 is closed by the shutter lever 18, and the rice sensor motor 16 is stopped by detecting that the drop sensor S has no material. be able to.

When the rice milling machine 2 stops, the raw material M is accumulated in the rice milling hopper 4 in an amount equal to or greater than the standard supply amount.
Stops automatically.

The embodiment of the present invention is not limited to the above, and another processing machine, for example, a hulling machine is provided in place of the destoner 1, and a loading sensor is provided in a hopper of the hulling machine. You may. Further, the charging sensor may be provided at the outlet of the hopper or at the flow path of the raw material located at the lower part of the hopper.

Instead of separately providing a dedicated motor for removing stones and a dedicated motor for frying, a single dual-purpose motor may be used.

When the stone removal motor and the graining motor are separately provided, a stone removal control circuit for controlling the stone removal motor by an input sensor provided in the stone removal hopper, and a grain removal hopper. A transport control circuit for controlling the transport motor by the transport sensor provided may be provided separately.

In this case, the crushing control circuit simultaneously starts the crushing motor and the transporting motor based on the detection signal indicating the presence of the reference input amount of the input sensor, and based on the detection signal indicating the absence of the reference input amount, for a predetermined time. After a lapse of time, the two motors are stopped, and the conveyance control means simultaneously stops the two motors after a lapse of a predetermined time according to the detection signal of the reference supply amount of the conveyance sensor, and the two motors are stopped by the detection signal of no reference supply amount. The motors are controlled to start simultaneously.

[0063]

As described above, the present invention has the following remarkable effects. (1) Since a drop sensor is provided in the drop cylinder of the rice polishing hopper to detect whether or not the raw material has flowed down, a signal indicating that the raw material is present from the drop sensor is sent out to automatically start the motor, and a signal indicating that there is no raw material is output. It can be stopped after a predetermined time has elapsed.

(2) Since the input sensor for detecting the presence or absence of the reference amount of the raw material is provided in the raw material hopper, when the raw material is introduced into the raw material hopper, the input sensor detects that the reference input amount is present. A signal is sent to automatically start the transfer motor and the processing motor at the same time.After that, when the input amount becomes less than the reference input amount, a signal indicating no reference input amount is sent out. Stop.

(3) Since a transport sensor for detecting the presence or absence of the reference supply amount of the raw material is provided in the rice polishing hopper, the transport sensor has a reference supply amount when the raw material in the rice hopper reaches the reference supply amount. After a predetermined time has passed, the transfer motor and the processing motor are automatically stopped at the same time, and then, when the supply amount becomes equal to or less than the reference supply amount, a signal indicating that there is no reference supply amount is transmitted, and both motors are sent. Start at the same time. Therefore, even if the rice hopper is made smaller and the height h from the floor is made lower, the raw material does not overflow. In other words, the milling hopper can be made smaller than before and the height of the milling device can be made smaller and more compact, and a constant amount of raw materials can be supplied.

(4) A feed sensor for detecting the presence / absence of a reference amount of raw material is provided in the raw material hopper, a transfer sensor for detecting the presence / absence of a reference supply amount of raw material is provided in the rice hopper, and A drop sensor is provided to detect the flow of the raw material, so that the operator simply puts the raw material into the raw material hopper, the motor starts automatically, and adjusts the polishing so that brown rice does not overflow from the rice polishing hopper. And complete
The motor stops automatically. Therefore, the present device can be operated unattended without any special operation, and can be easily used by anyone.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged view of a charging hopper.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is an enlarged view of a transfer hopper.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;

FIG. 7 is a diagram showing a charging and carrying control circuit.

FIG. 8 is an enlarged sectional view taken along line VIII-VIII of FIG. 2;

FIG. 9 is a diagram showing a rice polishing control circuit.

FIG. 10 is a control flow chart of the destoner and the fryer.

FIG. 11 is a control flowchart of a rice mill.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 stone removal machine 2 single-pass milling machine 3 milling machine 4 rice milling hopper 5 feeding sensor 6 motor for stone removal 7 motor for grain grinding 9 transport sensor 10 hopper for stone removal 16 motor for rice polishing S drop sensor

Claims (4)

(57) [Claims] A first processing machine having a raw material hopper, a loading sensor provided in the raw material hopper for detecting the presence or absence of a reference raw material supply amount, a processing motor for driving the processing machine , a machining control means for controlling the motor based on the output signal of the input sensor, before SL and conveying means for supplying the rice hoppers rice mill processed feedstock with a pressurized Koki, provided the purified rice hoppers, An automatic rice milling apparatus comprising: a transport sensor for detecting the presence or absence of a reference supply amount of raw materials; a transport motor for driving the transport means; and transport control means for controlling the motor based on an output signal of the transport sensor. The machining control means simultaneously starts the machining motor and the transport motor by the detection signal of the reference input amount of the input sensor, and after a predetermined time elapses by the detection signal of the reference input amount absence, Same motor The conveyance control means simultaneously stops the two motors after a predetermined time elapses based on the detection signal indicating the presence of the reference supply amount of the conveyance sensor, and simultaneously starts the two motors based on the detection signal indicating the absence of the reference supply amount. An automatic rice milling device characterized by the following. 2. A destoning machine having a destoning hopper, an input sensor provided in the destoning hopper for detecting the presence or absence of a standard input amount of raw material, a destoning motor for driving the destoning machine, Conveying means for supplying the raw material selected by the destoner to a rice polishing hopper of a rice mill, a conveying sensor provided in the rice polishing hopper for detecting the presence or absence of a reference supply amount of the raw material, and driving the conveying means. An automatic rice milling machine comprising: a transport motor; and a transport controller that controls the two motors based on output signals of the loading sensor and the transport sensor. The stone removal motor and the transport motor are simultaneously started by a detection signal having a reference input amount, and both motors are simultaneously stopped after a lapse of a predetermined time by the detection signal indicating that the reference input amount is absent. Yes Given time by the detection signal
An automatic rice milling machine wherein both motors are simultaneously stopped after a lapse of time, and both motors are simultaneously started by a detection signal indicating that there is no reference supply amount. 3. A first processing machine having a raw material hopper, a loading sensor provided in the raw material hopper for detecting the presence or absence of a reference amount of raw material, a processing motor for driving the processing machine, Processing control means for controlling the motor based on the output signal of the input sensor; conveying means for supplying the raw material processed by the processing machine to the rice polishing hopper of the rice polishing machine; A transport sensor for detecting the presence or absence of a reference supply amount, a transport motor for driving the transport means, a transport control means for controlling the motor based on an output signal of the transport sensor, the rice hopper and the rice polishing machine; , A drop sensor provided in the drop cylinder to detect the flow of raw material, a rice polishing motor for driving the rice polishing machine, and a rice polishing motor controlled by an output signal of the drop sensor. Rice control An automatic rice device including a stage, a; the machining control means, the same time to start moving the the machining motor and conveyor motor by the detection of the reference charged amount chromatic of insertion sensor, the reference input amount Mu After a lapse of a predetermined time according to the detection signal, the two motors are simultaneously stopped after a lapse of a predetermined time according to the detection signal indicating the presence of the reference supply amount of the conveyance sensor. The both rice motors are started simultaneously by the detection signal of no, the rice polishing control means starts the rice polishing motor by the signal of the raw material of the drop sensor, and stops the motor after a lapse of a predetermined time by the signal of no raw material. Automatic rice milling device. 4. A destoning machine having a destoning hopper, an input sensor provided on the destoning hopper for detecting the presence or absence of a reference amount of raw material, a destoning motor for driving the destoning machine, Conveying means for supplying the raw material selected by the destoner to a rice polishing hopper of a rice mill, a conveying sensor provided in the rice polishing hopper for detecting the presence or absence of a reference supply amount of the raw material, and driving the conveying means. A transfer motor, a transfer control means for controlling the two motors based on output signals of the input sensor and the transfer sensor, a drop cylinder connecting the rice hopper and the rice mill, and a drop cylinder provided in the drop cylinder. An automatic rice milling apparatus comprising: a drop sensor for detecting whether a raw material is flowing down; a rice milling motor for driving the rice milling machine; and rice milling control means for controlling the rice milling motor based on an output signal of the drop sensor. Said loading The feeding control means simultaneously starts the stone removal motor and the transport motor by the detection signal of the reference input amount of the input sensor, and simultaneously stops both motors after a predetermined time has elapsed by the detection signal of no reference input amount. The two sensors are simultaneously stopped after a lapse of a predetermined time according to the detection signal indicating the reference supply amount of the transport sensor, and both motors are simultaneously started according to the detection signal indicating the absence of the reference supply amount. An automatic rice milling machine characterized in that a rice milling motor is started in response to a signal indicating that a raw material is present from a sensor, and the motor is stopped after a predetermined time has elapsed in response to a signal indicating that there is no raw material.