JP2004008867A - Control method for circulation type rice polishing mill and device therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To flow out no rice from a taking out port even if the rice is charged into a rice polishing hopper in the case where a rice polishing motor is urgently stopped during a discharge step. <P>SOLUTION: The control method for a circulation type rice polishing mill has a rice polishing step for polishing a rice; and a discharge step for opening a cleaned rice discharge shutter 15 and discharging the polished rice in the rice polishing step. When the rice polishing motor 3 is urgently stopped in the discharge step, the cleaned rice discharge shutter 15 is closed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for controlling a circulating rice mill having a white rice discharge shutter.
[0002]
[Prior art]
The conventional circulation type rice mill has a circulation circuit including a rice hopper, a polishing chamber connected to an outlet of the rice hopper, and a return passage connecting the outlet of the rice polishing chamber and the rice hopper. A white rice discharge shutter provided at an outlet of a circuit, a control means for controlling a rice polishing motor and the shutter, a hopper cover covering an upper surface of the hopper, an inspection cover for cleaning and inspecting the rice polishing section, A detection mechanism for checking the open / closed state of both covers.
[0003]
In this rice polishing machine, for safety, if the hopper cover or the inspection cover is inadvertently opened while the rice polishing motor is being driven, the detection mechanism is activated and the operation is immediately stopped.
[0004]
[Problems to be solved by the invention]
In the conventional example, when the detection mechanism is operated and the rice-milling motor is stopped urgently during the discharge of the milled rice grains, the shutter is kept open. In this state, when rice grains are put into the milled rice hopper, the put rice grains pass through the outlet and flow down into the white rice container. For this reason, the white rice in the white rice container and the unpolished rice grains are mixed, and it is misunderstood that the rice mill has failed.
[0005]
SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to prevent rice from flowing out of the machine even if rice is put into a rice hopper after the rice milling motor is stopped in an emergency during the discharging process.
[0006]
[Means for Solving the Problems]
The present invention relates to a method for controlling a rice mill having a milling process for milling rice grains, and a discharging process for opening a white rice discharge shutter and discharging milled rice that has been milled in the milling process; emergency operation is stopped in the discharging process. At this time, the white rice discharging shutter is closed. The emergency stop of the present invention is performed based on the operation of an operation switch or a safety switch.
[0007]
The present invention provides a circulation circuit comprising a rice polishing hopper, a polishing chamber connected to an outlet of the rice polishing hopper, a return passage connecting the outlet of the polishing chamber and the rice polishing hopper, and an outlet of the circulation circuit. In a circulating rice mill having a white rice discharge shutter provided in a rice mill, a rice polishing motor and control means for controlling the shutter, the shutter is closed when the emergency operation is stopped when the shutter is opened. It is characterized by having safety control means.
[0008]
The present invention provides a circulation circuit comprising a rice polishing hopper, a polishing chamber connected to an outlet of the rice polishing hopper, a return passage connecting the outlet of the polishing chamber and the rice polishing hopper, and an outlet of the circulation circuit. , A control means for controlling the rice polishing motor and the shutter, a hopper cover for covering the upper surface of the hopper, an inspection cover for cleaning and inspecting the rice polishing part, and a flattening of the two covers. And a detection mechanism for checking the condition, wherein when the detection mechanism detects an open state when the shutter is opened, the rice polishing motor is stopped and the shutter is closed. It is characterized by comprising control means.
[0009]
The present invention provides a circulation circuit comprising a rice polishing hopper, a polishing chamber connected to an outlet of the rice polishing hopper, a return passage connecting the outlet of the polishing chamber and the rice polishing hopper, and an outlet of the circulation circuit. There is provided a white rice discharge shutter provided in the apparatus, a rice milling motor and control means for controlling the shutter, an operation button for turning on / off a power, a whiteness setting button for selecting the whitening frequency, and a start button for starting the whitening. An operation panel provided with a recirculation type rice mill, wherein when the shutter is opened, an operation button is operated to turn off the power, the rice polishing motor is stopped, and the shutter is closed. It is characterized by comprising control means.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the present invention, in the discharging step, when the rice polishing motor is stopped in an emergency, the emergency safety control means is operated to close the white rice discharging shutter. Therefore, even if the rice grains are put into the rice polishing hopper when the operation is resumed, they do not flow out of the machine.
In addition, a circulation type rice mill is used as the rice mill, but in particular, each center line of the rotating shaft of the milling chamber, the milling roll, and the milling motor is positioned on the same straight line that is tilted upward. A recirculating rice mill is preferred.
[0011]
【Example】
An embodiment of the present invention will be described with reference to FIGS.
A household circulation type rice mill is housed in a casing 1. The outlet 6 of the milling hopper 5 communicates with the inlet 8 of the milling chamber 7, and the outlet of the milling chamber 7 communicates with the milling hopper 5 through the return passage 11. Has formed.
[0012]
The upper surface of the rice polishing hopper 5 is closed by a hopper cover 9, and a micro switch 53 having a switch projection 54 is provided on an upper side wall of the rice polishing hopper 5. The microswitch 53 is a safety switch, and the switch projection 54 is pressed by the hopper cover 9 to maintain the off state.
[0013]
The refining chamber 7 is inclined with the outlet side facing upward. In the refining room 7, the refining rolls 4 are arranged concentrically. The shaft 46 of the whitening roll 4 is connected to the rice polishing motor 3. The center lines of the milling motor 3, the milling roll 4, and the milling chamber 7 are located on the same inclined straight line.
[0014]
The outlet 6 and the outlet 13 are separated by the shutter 15 of the outlet opening / closing device 14. The outlet opening and closing device 14 opens and closes the shutter 15 according to an instruction from the control circuit 30.
[0015]
On the outlet side of the refining chamber 7, a refining degree adjusting device 40 is provided, and the device 40 is provided with a resistance rod 38. A whiteness detection sensor 31 and a rice grain presence / absence detection sensor 33 are provided on a side wall of the discharge port 6.
[0016]
The rice grain presence / absence detection sensor 33 is a facing type optical sensor, and light from a light emitting element of the sensor 33 is irradiated toward a light receiving element. Then, when the rice grains flow down in the outlet 6, the light is blocked, so that the light does not enter the light receiving element. Therefore, the output from the light receiving element is lost, so that the presence of rice grains can be known.
[0017]
The degree-of-milling detection sensor 31 is a reflection-type optical sensor, and light from the light-emitting element of the sensor 31 is applied to rice grains flowing down in the outlet 6 and the reflected light is input to the light-receiving element. This reflected light increases as the rice grain becomes whiter. Therefore, the degree of whitening can be known from the magnitude of the light receiving output.
[0018]
An operation panel 65 is provided on the front surface of the casing 1. The panel 65 is provided with a fineness setting key 66, a power switch 67, and a start key 75.
[0019]
Reference numeral 18 denotes a guide member which allows the refining chamber 7 inside the refining chamber member 25 to communicate with the cyclone 19. Reference numeral 43 denotes a motor that slides a movable member that operates a limit switch for positioning.
[0020]
2 is a base of the rice mill, 21 is a bran receiving container, 23 is a suction device, 26 is a communicating portion provided at the rear end of the polishing room 7, 48 is a holder of the outlet opening / closing device 14, Reference numeral 68 denotes a lid of the accessory storage unit 69, and reference numeral 71 denotes a milling tool stored in the accessory storage unit 69.
[0021]
Next, the operation of the present embodiment will be described.
After opening the hopper cover 9 and putting a predetermined amount of rice grains (brown rice) into the milled rice hopper 5, the hopper cover 9 is closed. At this time, the white rice discharge shutter 15 is closed, and the switch projection 54 of the microswitch 53 is pushed by the hopper cover 9 to be in an off state.
[0022]
The power is turned on by pressing the power switch 67 of the operation panel 65 (s1), and the desired whiteness is set by operating the whiteness setting key 66 (s2).
[0023]
When detecting the presence of rice grains (s3), the rice presence / absence detection sensor 33 outputs to the control circuit 30. Then, the control circuit 30 starts the rice polishing motor 3 (s4), so that the rice grains are refined while circulating in the circulation passage.
[0024]
When the whiteness detection sensor 31 detects that the whiteness has reached the set whiteness (s5), it outputs to the control circuit 30. Since the control circuit 30 operates the outlet opening / closing device 14, the white rice discharge shutter 15 is opened (s6) and the rice polishing motor 3 is switched to the reverse rotation. Then, the milled rice grains flow into the rice receiving container 17 while being guided by the guide member 16 through the outlet 13.
[0025]
When the rice cereal presence / absence detection sensor 33 detects that the rice cereal has run out (s7), it outputs to the control circuit 30. Then, the control circuit 30 operates the outlet opening / closing device 14, so that the white rice discharging shutter 15 is closed (s8).
The control circuit 30 stops the rice polishing motor 3 (s9) and turns off the power switch 67.
[0026]
Next, a case where the micro switch 53 is turned on during the milling operation or the discharging operation of the milled rice grains will be described with reference to FIGS.
When the hopper cover 9 is opened during the milling operation (milling process), the micro switch 53 is turned on (s10). Since this ON signal is output to the control circuit 30, the control circuit 30 stops the rice polishing motor 3 (s11).
[0027]
After the safety is confirmed (s12), when the hopper cover 9 is put on the milling hopper 5, the microswitch 53 is turned off, so that the control circuit 30 drives the milling motor 3 (S4) to continue the milling process. (See FIG. 6A).
[0028]
Further, when the hopper cover 9 is opened during the discharge operation of the milled rice grains (discharge step), the micro switch 53 is turned on (s13), and an ON signal is output to the control circuit 30. The control circuit 30 stops the rice polishing motor 3 (s14), activates the outlet opening / closing device 14, and closes the white rice discharge shutter 15 (s15).
[0029]
After the safety is confirmed (s16), when the hopper cover 9 is put on the milled rice hopper 5, the microswitch 53 is turned off, so that the control circuit 30 reversely rotates the milled rice motor 3 (s6) and opens the shutter 15. And the discharging process is continued (see FIG. 6B).
[0030]
The embodiment of the present invention is not limited to the above, and may be, for example, as follows.
(1) As a safety switch, a contact type sensor or a non-contact type sensor operated by an opening / closing detection mechanism of an inspection cover for cleaning and inspecting a rice mill is used.
(2) No safety switch is provided, and when the rice polishing motor is to be stopped urgently, the power switch (operation switch) is pressed to turn off the power. However, the control circuit (microcomputer) is designed to close the white rice discharging shutter when the power is turned off in the discharging step.
[0031]
【The invention's effect】
According to the present invention, the white rice discharging shutter is closed when an emergency stop is performed in the discharging step, so that the outlet is closed.
Therefore, even if the rice grains are put into the rice polishing hopper, they do not flow out of the outlet, and unlike the conventional example, there is no possibility that the rice grains are misunderstood.
Further, since unpolished rice grains do not flow down into the rice receiving container, they do not mix with milled rice grains.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of FIG.
FIG. 3 is a partially enlarged view of FIG. 2;
FIG. 4 is a block diagram of the present embodiment.
FIG. 5 is a flowchart of the present embodiment.
FIG. 6 (A) is a flowchart in the case of an emergency stop in the rice polishing process, and FIG. 6 (B) is a flowchart in the case of an emergency stop in the discharge process.
[Explanation of symbols]
3 rice polishing motor 5 rice polishing hopper 7 polishing chamber 9 hopper cover 11 return passage 13 outlet 14 outlet opening and closing device 15 white rice discharge shutter 30 control circuit 31 degree of whiteness detection sensor 33 rice grain presence detection sensor 53 micro switch

Claims (5)

A method for controlling a rice mill, comprising: a rice milling step of milling rice grains; and a discharging step of opening a white rice discharging shutter and discharging the rice milled in the rice polishing step;
A method for controlling a circulating rice mill, wherein the white rice discharge shutter is closed when the emergency operation is stopped in the discharge step. The method according to claim 1, wherein the emergency stop is performed based on an operation of an operation switch or a safety switch. A circulation circuit comprising a rice polishing hopper, a polishing chamber connected to an outlet of the rice polishing hopper, a return passage connecting the outlet of the polishing chamber and the rice polishing hopper, and an outlet of the circulation circuit. In a circulating rice mill having a white rice discharge shutter and a rice milling motor and a control unit for controlling the shutter,
A control device for a circulating rice mill, comprising: emergency safety control means for closing the shutter when the emergency operation is stopped when the shutter is opened. A circulation circuit comprising a rice polishing hopper, a polishing chamber connected to an outlet of the rice polishing hopper, a return passage connecting the outlet of the polishing chamber and the rice polishing hopper, and an outlet of the circulation circuit. White rice discharge shutter, control means for controlling the rice polishing motor and the shutter, a hopper cover for covering the upper surface of the hopper, an inspection cover for cleaning and inspecting the rice polishing section, and inspecting the open / close state of the two covers. In the circulation type rice mill provided with a detection mechanism,
When the shutter is opened, when the detecting mechanism detects an open state, the rice milling motor is stopped, and the shutter is closed. apparatus. A circulation circuit comprising a rice polishing hopper, a polishing chamber connected to an outlet of the rice polishing hopper, a return passage connecting the outlet of the polishing chamber and the rice polishing hopper, and an outlet of the circulation circuit. An operation provided with a white rice discharge shutter, a rice polishing motor and control means for controlling the shutter, an operation button for turning on / off the power, a whiteness setting button for selecting the whitening frequency, and a start button for starting the whitening. In a recirculating rice mill with a panel,
When the shutter is opened, when the power is turned off by operating an operation button, the rice milling motor is stopped and the shutter is closed, and an emergency safety control means is provided. Control device.

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