JPH01176459A - Operation controller for rice-cleaning machine - 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 an operation control device for a rice milling machine, and is particularly applicable to an unmanned rice milling facility where the operation time is automatically controlled using a coin timer or the like.

[Prior art and problems to be solved by the invention] The above-mentioned unmanned rice milling facility mills the raw brown rice inputted by the user while conveying it from a supply device such as a spiral conveyor to a brown rice tank. If the operating time of the device is set based on the number of input coins, the amount of money, etc., raw brown rice may remain in the brown rice tank, making it impossible to recover the amount of polished rice commensurate with the input raw materials.

[Means for solving problems]

The present invention attempts to solve the above-mentioned drawbacks, and includes an operation time setting means for setting the operation time of the supply device 16 for transferring the raw brown rice in the receiving section to the brown rice tank 30 of the rice milling machine 12, and an operation time setting means for setting the operation time of the supply device 16 for transferring the raw brown rice in the receiving section to the brown rice tank 30 of the rice milling machine 12, and the remaining brown rice in the brown rice tank 30. A brown rice detection sensor 63 that detects the presence or absence of brown rice and a drive mechanism 35 of the rice polishing machine 12 are provided, and when the brown rice detection sensor 63 does not detect residual brown rice at the expiration of the operation time, the drive mechanism 35 of the rice polishing machine 12 is stopped. , when residual brown rice is detected, the extended operation time T until non-detection occurs.
The operation control device for a rice milling machine is provided with a stop control means for stopping the drive mechanism 35 after the operation.

[Operation and effect of the invention]

The operating time of the feeding device is set based on the amount of raw brown rice to be processed before the rice milling machine starts operating. When the raw material brown rice is supplied, the feeding device passes the brown rice tank to the whitening processing section of the rice milling machine, and the polished rice is recovered as appropriate.

Normally, the supply flow rate from the supply device and the milling processing amount are set to approximately match, so that there is little stagnation in the brown rice tank section and brown rice is continuously supplied for a predetermined operating time. If the relationship with the processing amount breaks down and the milling process is not completed in time and the brown rice stagnates in the tank for a predetermined operating time, the brown rice detection sensor will be able to detect the stagnation state until the sensor no longer detects brown rice. After an extended operating time of , the drive mechanism of the rice mill is stopped.

Therefore, since the extended operation time is set as the detection standard of the brown rice detection sensor, the amount of rice remaining in the brown rice tank can be reduced compared to the case where the drive mechanism of the rice milling machine is stopped according to the elapsed standard of the set operation time of the supply device.

〔Example〕

An embodiment of this invention will be described based on the drawings.

Reference numeral 1 denotes a building in which an unmanned rice milling facility is installed, and the interior thereof is divided into an operation room 3 and a machine room 4 by a partition wall 2.

Among these, the operation room 3 side has a brown rice input section 5, an operation panel 6, a polished rice take-out section 7, etc., and the machine room 3 side has a charging hopper 8, a stone removal elevator 9, a stone removal machine 10, a rice polishing elevator 11, Rice polishing machine 12
, a bran processing section 13, etc.

The brown rice input section 5 has a brown rice stand 15 on the operation room 3 side before and after the opening 14 of the partition wall 2.
A feed hopper 8 is shown on each side, and a supply gutter 17 containing a supply spiral 16 is provided below the hopper 8, and the shaft of the spiral 16 is provided so as to be rotationally interlocked by a drive motor 18 at one end. 19 is a sieve screen.

The transfer end side of the supply gutter 17 is exposed to the hopper portion of the stone removing elevator 9, and the stone removing machine 10 is positioned below the hopper on the upper side of the stone removing elevator 9. This stone removing machine 10 has an inclined sorting screen 20. It consists of a fan 21 and a swinging mechanism 22, etc., and as the drive motor 23 rotates, the tilting direction of the sorting net 20 swings and raises air to shake foreign matter (stones, metal pieces, etc.) mixed in the brown rice to the upper side of the slope. The brown rice flows downward to exit 24.
It is configured so that it can be discharged from In addition, the foreign matter discharge shutter 25 provided on the upper side of the sorting net 2o is normally closed by a spring 26.
hold the state and send the work end signal (for example, the supply spiral 1
A forward/reverse opening/closing motor 27 that rotates forward in response to a stop signal (6 stop signal)
becomes “open”.

28.29 is a limit switch for setting the limit operation, and
It is possible to set the rotation limit of the opening/closing motor 27, which rotates in reverse after maintaining the "open" state for a short period of time (for example, 5 seconds).

The hopper of the rice milling machine 11 is visible below the brown rice outlet 24, and the brown rice tank 3 of the rice milling machine 12 is located below the upper tank.
Look at 0.

This rice milling machine 12 has a known configuration in which a milling roll 32 is installed in a milling chamber 31, and the separated bran from a bran removal screen 33 is conveyed to the bran processing section 13 by a bran conveying fan 34. Reference numeral 35 is a rice milling machine motor that rotates and interlocks the polishing roll 32, bran conveying fan 34, and the like. The outlet side of the white rice polishing chamber 31 communicates with a white rice tank 36 serving as a white rice take-out section 7. 3
7 is a fan that blows air into the whitening room 31. The degree of polishing is adjusted by changing the elastic pressure of the white charcoal adjustment spring 40 applied to the pressure plate 39 on the outlet side by rotating the white charcoal adjustment motor 38 in the forward and reverse directions. That is, the white charcoal adjustment spring 4o, which is loosely fitted to the shaft 41 connected to the motor 38, is connected to the upper receiver 42 and the shaft 41.
The shaft 4 is received by a nut member 43 screwed into the lower part.
The effective length is set long or short in one rotation, and the pressure of the compression plate 39 connected by the wire 44 can be changed. In addition, the upper receiver 4
2 is connected to a bran removing screen 33 which is provided so that it can freely move, and in an overloaded state such as during startup, the wire 44 is rotated together with the whitening roll 32 and the wire 44 is opened at the outlet side to reduce the load. There is.

The bran processing unit 13 has a cyclone 45 and a cyclone 4.
5 Rice bran transfer spiral 4 that horizontally transports the rice bran that has fallen to the bottom.
6 gutter 47, and rice bran bags 48, 48 for receiving rice bran falling from a discharge section opened at the middle and end of the spiral gutter 47.

The operation panel 6 on the operation room 3 side has a brown rice input ready lamp 49, a coin number indicator 50, a coin mech 51,
Sticky rice button 52, white charcoal selection (for turning, choose white, standard,
(selectable in 3/8 steps) buttons 53, 54, 55,
A price list 56 (for example, 100 yen up to rlOkg) is provided, and the coin mech 51 is equipped with an input coin identification unit, a coin sensor 57 that operates for each input coin, and the like.

The operation panel 6 is equipped with a microcomputer for controlling the drive motors of various parts.

Arithmetic control unit (CPU) 58 of the above microcomputer
Detection information from the coin sensor 57, white skin selection information,
A brown rice detection sensor signal (to be described later), a limit switch 60 signal connected to a cam 59 connected to the white charcoal adjustment motor 38, a clock signal, etc. are input. - The force output information includes the control signal for the supply helical drive motor 18 and the drive motor 23 for the destoner 10.
・Elevator 9, 11 drive motor 61 ・Rice polishing machine 12 drive motor 35 ・Branch transfer spiral motor 62 etc. Main machine drive system control signal,
There are control signals for the stone removal machine shirt opening/closing motor 27, white change adjustment motor 38 control signals, and the like.

The CPU 58 mainly has the following functions. That is, (2) the input amount and number of coins are calculated in response to a signal from the coin sensor 57; ■According to the number of coins (100 yen coins) inserted, the built-in timer mechanism is operated to drive the motor 18 for the supply spiral 16 for a predetermined time t1 (135 seconds per 100 yen coins), and the motor 18 for the supply spiral 16 is driven, A start/stop signal is output to drive the drive system motors of this machine, such as the motor 61 for 11, for a little longer than t (180 seconds) (FIG. 11A). (2) A brown rice detection sensor 63 is provided on the wall side of the brown rice tank 30 of the rice polishing machine 12, and a stop signal for the supply spiral motor 18 is output based on whether brown rice is detected. That is, when brown rice is detected and this detection sensor 63 is turned ON, the predetermined time (ta:
If the sensor 63 continues to be turned on even after so seconds have elapsed, the motor 18 will stop, and if the sensor 63 turns off, it will start driving again (Fig. 11). ■As shown in the opening of the figure, the set time t1 (1□=
1. +1. +1. ) has elapsed, a delay of a set time 11 (for example, 30 seconds) is elapsed, and the output is output to stop the machine drive system motors such as the motor 35 for the rice polishing machine 12. ■Also, if the operating time based on the number of inserted coins expires within the predetermined time t1, an extended operating time T until the detection sensor 63 turns OFF is performed, and then the stop control is performed after a predetermined time t3 has elapsed. Figure 11c). (2) Before starting the work, a white charcoal selection button signal is input, and the white charcoal adjustment motor 38 is rotated forward or reverse so that the white charcoal adjustment motor 38 is set at a preset rotation position so that the white charcoal selection button signal is turned into a pile according to the selected position. That is, the whiteness state stored before the button setting is compared with the newly set mountain slope, and while outputting the motor 38 rotation signal, the limit switch 60 fits into the recess of the cam 59. When a predetermined count is reached, a stop signal is output.

■After the work end signal, that is, the supply spiral 16 drive motor 18 operating time set according to the number of coins inserted has elapsed, the discharge shutter 25 motor 27 of the stone removal machine 10 is rotated in the forward direction, and after a predetermined time has elapsed, it is reversed. Outputs a forward/reverse signal to return. etc.

The action of the upper side will be explained.

Insert enough coins into the coin mech 51 slot in advance to secure the operating time corresponding to the amount of raw brown rice, and
This brown rice is supplied to the input hopper 8. Each part of the apparatus starts operating at the same time as a coin is inserted, and the brown rice from the input hopper 8 is horizontally transferred by the supply spiral 16 and input into the stone removal elevator 9. The unpolished rice discharged from the upper part of the elevator 9 enters a destoner 10 and is subjected to rocking or air separation treatment to remove any foreign matter contained therein. The polished brown rice from below the sorting m20 is supplied to the rice milling elevator 11, lifted up, and supplied into the brown rice tank 3o. The brown rice flowing down into the whitening chamber 31 of the rice milling machine 12 is polished by the rotation of the whitening rolls 32 to remove the bran layer on the surface between grains or between the bran removal screens 33. At this time, the pressure plate 3 at the outlet
9 is set to a desired pressure using the polishing selection button, and the desired polishing degree is achieved. The polished rice from the whitening chamber 31 passes through the polished rice take-out section 7 and is appropriately collected in the operation chamber 3. When the time t set by the input amount has elapsed, the drive motor 18 of the supply spiral 16 first stops, and after a delay of a predetermined time t2, the drive motor of the rice polishing machine etc. stops. 11 and the amount of brown rice remaining in the whitening room 31 can be reduced.

During the above-mentioned work, the flow rate of brown rice flowing from the rice milling elevator 11 and the amount processed by the rice milling machine 12 are set in a substantially consistent relationship; however, in reality, this relationship is not uniform depending on the quality of brown rice, moisture content, etc. Therefore, when the amount of rice milled decreases, the brown rice tank 3
When the brown rice stagnates at 0 and the amount of stagnation gradually increases, the brown rice detection sensor 63 turns on. Even if this state continues for the predetermined time t3, if the sensor 63 is still in the ON state, the supply spiral 16
The drive motor 18 stops and the supply of new raw materials is temporarily stopped. Since the motor 35 of the rice polishing machine 12 continues to be driven, the polishing process continues, and the sensor 63 is turned off with a delay.
FF. At the same time, the motor 18 of the supply spiral 16 is again
is activated to resume the supply of raw materials.

On the other hand, when the operating time expires within the above-mentioned predetermined time t3, the rice polishing machine 12, etc. The machine drive motor is one that "stops," and the time lag tz, t is simply applied to the drive stop reference of the supply spiral 16.
Since the rice milling machine 12 and the like are not stopped after t, it is advantageous in that the amount of residue can be reduced.

When receiving a drive stop signal for the supply spiral 16, specifically a drive motor 18 stop signal, the drive motor for the discharge shutter 25 of the stone removing machine 10 rotates in the normal direction to open the opening and remain on the sorting net 20. It can remove foreign substances and prevent them from being mixed in during the next rice milling operation.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall plan view, Fig. 2 is a schematic flow diagram of the device, Fig. 3 is a perspective view showing the device drive system, and Fig. 4 is the side of the stone removal machine. 5 is a plan view of a part of it, FIG. 6 is a sectional view of the brown rice tank, FIG. 7 is a side sectional view of the rice milling machine, FIG. 8 is an explanatory diagram showing the milling adjustment mechanism, and FIG. 9 is a front view of the operation panel, FIG. 10 is a control block diagram, and FIG. 11 is a time chart. In the figure, 3 is an operation room, 4 is a machine room, 8 is a charging hopper, 9 is a stone removing elevator, 10 is a stone removing machine, 11 is a rice milling elevator, 12 is a rice milling machine, 16 is a supply spiral, 18 is a drive motor, 30 is the brown rice tank, 38 is the whitening roll, 35 is the rice polishing machine motor, 5
1 is a coin mech, 57 is a coin sensor, 58 is a calculation control unit (CPU), and 63 is a brown rice detection sensor.

Claims (1)

[Claims] An operation time setting means for setting the operation time of the supply device 16 for transferring the raw brown rice in the receiving section to the brown rice tank 30 of the rice milling machine 12; a brown rice detection sensor 63 for detecting the presence or absence of residual brown rice in the brown rice tank 30; Drive mechanism 35 of rice polishing machine 12
and when the brown rice detection sensor 63 does not detect residual brown rice at the expiration of the operation time, the drive mechanism 3 of the rice polishing machine 12
5, and when residual brown rice is detected, the drive mechanism 35 is stopped after an extended operating time T until non-detection is detected.