JPH03143551A - Rice husking milling device - Google Patents

Abstract

PURPOSE:To reduce operation trouble even in an unmanned rice husking milling device by performing actuation of a gap controlling means of the husking rolls by detection result of a detecting means of husked rice. CONSTITUTION:The rice husking milling device is equipped with a rice husker 10 which receives supply of paddy and performs husking treatment and a rice milling machine 12 which receives rice husked without winnower sent from this rice husker 10 and performs polishing treatment. A roll gap controlling means widely and narrowly controls the gap between a pair of husking rolls 24, 25 which perform husking treatment by the current loaded to a driving motor. This roll gap controlling means is interlocked with a husked rice detecting means 36 so as to be actuated after flow of rice husked without winnower to an air sorting part 26 is detected. In other words, when the detection output of a detecting means for rice husked without winnower is output, it is sure that paddy is passing between the husking rolls. Burning based on contact of the husking rolls can be solved which is caused by bridge phenomena in the upper part of the husking rolls. Operation trouble can be reduced even in an unmanned rice husking milling device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a rice hulling and rice polishing device comprising a huller-T and a rice milling process.

[Prior art and problems to be solved by the invention] In recent years, unmanned rice milling facilities that have both a hulling function and a rice milling function have become popular. By the way, the rice huller automatically removes the rice.
・Since it is necessary to set the 10-le gap to a predetermined value, it is common to perform so-called load control, which is a control to make the load current of the drive motor equal to ^I, M load current.

When using the above load current control, if the supply of paddy to be deflated is cut off, the rolls will come into contact with each other.
The supply hopper is provided with means for detecting paddy, and the above-mentioned roll gap control is performed only when paddy is present.

However, a so-called bridging phenomenon occurs in the upper part of these de-rolling rolls, and there is actually no paddy between the de-rolling rolls, causing burns etc. due to contact with the de-rolling rolls. There is.

[Means to solve the problem]

This invention solves the above-mentioned drawbacks, and is provided with a huller that receives a supply of paddy and processes it for de-hulling, and a rice miller that receives the scraped rice from the huller and processes it for polishing. A motor 31 drives the gap between the pair of escape rolls to be removed.
The roll gap control means, which is widened and narrowed by the load current, is connected to the removed rice detection means 36 in order to detect the flow of removed rice to the wind sorting section 26.
The configuration is as follows.

[Operation and effect of the invention]

When the raw material paddy is supplied to the hulling machine, the de-I40-
It is removed during the process. When the sliding rice detecting means receives a sliding rice detection signal, the removing roll gap control means starts functioning. That is, the detected load current of the drive motor is compared with the preset +, b amplified current, and is kept within a predetermined range while maintaining a substantially constant deviation. This is to obtain the da rate.

As mentioned above, the operation of the def10-le gap control means is based on the detection result of the sliding rice detection means, so when there is a detection output from this means, it means that the paddy is passing through the deff crawl. It is reliable and can eliminate the drawbacks mentioned at the beginning, and can reduce the number of troubles in the unmanned hulling rice milling device.

〔Example〕

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

■ is a building in which an unmanned rice hulling facility will be installed, and the interior is divided into an operation room 3 and a machine room 4 by a partition 2. Of these, the operation room 3 side has a raw material paddy input section 5, an operation panel 6, a polished rice removal section 7, an input hopper 8, etc.

On the machine room 4 side, there is a rice huller lifting machine 9, a rice hulling machine 10, a rice milling machine 11, a rice milling machine 2, and a bran processing section 13? ′.

The raw material paddy input section 5 has a structure in which a raw material storage stand 15 is visible on the operation room 3 side and a charging hopper 8 is visible on the machine room 4 side at the front and rear of the opening 4 of the partition. A supply @ 17 containing a supply spiral upper 6 is provided at the lower part, and the spiral 16 is provided so as to be rotationally interlocked by a supply spiral motor 18 on one end side. 19 is a sieve net.

Above supply @! The transfer terminal side of 17 is the rice huller lifting and lowering 4! 9, and the upper part of the rice huller elevating fi9 is the rice huller 10.
It communicates with the paddy tank 20 of. At the bottom of this paddy tank 20, a switching shutter 21 is configured to switch around the central horizontal shaft 22 between a left side tilted position A and a right side tilted position. Can supply raw materials.

Further, when switching to the inclined position, the raw material can be supplied to the removing rolls 24 and 25 of the huller 10. These theories! 10-rules 24.25 rotate at different circumferential speed differences.

Reference numeral 26 refers to a wind sorting section that processes the washed rice, 27 refers to a transfer spiral that collects light grains etc. separated from the mixed rice that has been removed and transfers them to one side, and 28 removes small grains from the mixed rice. 29 is a suction fan, and 30 is a dust exhaust cylinder that discharges rice husks and dust. Rotating parts such as the IQ removal rolls 24 and 25 and the transfer spiral 27 are rotationally interlocked by a huller drive motor 31. Incidentally, the discharge side end of the transfer spiral 27 can be communicated with the hulling elevator 9. Further, the mixed rice from the downstream 4i 128 can be communicated with the hopper section of the rice milling elevator 1 via the conveyance passage 32 as appropriate.

One of the above-mentioned P40-rules 24.25 is in the form of a movable de-roll that can freely move near and far with respect to the other, and the above-mentioned de-roll 2
4.25 The gap can be controlled to be wide or narrow as shown below.

That is, a load current detection means 34 capable of detecting the load current of the drive motor 31 is provided, and the control section 35 stores a preset reference current value and compares it with the detected load current value.
The movable de-H roll 25 is moved far from the fixed de-H roll 24 so that the two values are approximately the same.In other words, the gap between the rolls is controlled wide and narrow to maintain a constant load (the de-H roll gap control means). Note that this control is interrupted after a predetermined period of time has elapsed after the start of operation, and thereafter the 'M' rotation is continued while maintaining the gap at the time of interruption.

Numeral 36 is a piezoelectric sensor as a means for detecting removed rice, which is installed at a machine station at an appropriate position of the wind selection section 26, and its detection output is 10 when subjected to the impact of scattering of removed rice.

The information is sent to the control unit 35 of the roll gap control means. The control section 35 is configured to start controlling the de-roll gap after receiving the above-mentioned detection output.

The brown rice tank 37 of the rice milling machine 12 can be seen near the tank at the top of the rice milling elevator 11.

This rice polishing fi 12 has a known configuration in which a whitening roll 39 is installed in a 1M whitening chamber 38, and the outlet side of this whitening chamber 38 is connected to a whitened rice tank 40 as a whitened rice take-out section 7, while the white rice is separated from a wrinkle removing screen 41. The S bran is configured to be conveyed to the castle processing section 13 via a passage 43 under the suction action of a conveyance fan 42 serving as a suction mechanism. 44 is the rice milling machine motor;
This is a configuration in which the polishing roll 39, bran conveying fan 42, etc. are rotated in conjunction with each other.

The degree of polishing is adjusted by changing the elastic pressure of the white layer adjustment spring 47 applied to the pressure plate 46 on the exit side as the day labor setting motor 45 rotates forward and backward. That is, the white layer adjustment spring 47 that is loosely fitted onto the shaft 48 connected to the motor 45 is received by the receiver 49 of the -hi portion and the nut member 50 that is screwed into the lower part of the shaft 48, and when the shaft 48 rotates, The effective length is set long or short, and the pressure of the compression plate 46 connected by the wire 51 can be changed to high or low. The receiving body 49 is connected to a bran removal screen 4 which is provided so as to freely move over a predetermined angle around the longitudinal axis, and in an overloaded state such as during startup, the receiving body 49 is rotated together with the whitening roll 39 to reduce the load. It is possible to do so.

The bran processing unit 13 includes a cyclone 53 connected to the passage 43, a bran transfer spiral fi11!54 that extends below the cyclone 53 and horizontally transfers the fallen bran, and a chain gutter 54.
It consists of rice bran bags 55, 55 which receive the fall area from the discharge part which is opened at the middle part and the end side.

The operation panel 6 on the operation chamber 3 side has a raw material input ready lamp 56 on its panel surface. Coin number indicator 57, coin mech 58,
Massage/kome selection buttons 59, 60, day labor selection (for turning, you can select from 3 stages of upper white, mark increase, and 8/8) button 61
, 62, 63, etc. are installed. And this operation panel 6
Inside, the drive control of each part drive motor is performed for the operating time according to the number of coins inserted, and the above-mentioned de-f?
Equipped with a microcomputer that controls the roll gap.

The control unit (CPU) 35 of this microcomputer
In addition to the above-mentioned de-roll gap control.

It mainly has the following functions. That is, by the action of the coin sensor 65 upon insertion of a coin, a start signal is output to the supply spiral motor 18, the huller motor 31, the huller elevator 9, the rice milling elevator 11 motor 66, and the bran spiral motor 67.

■ Counting is started by receiving the detection output of the coin sensor 65 from the clock output of the clock oscillation circuit built in the CPU 35, and after a predetermined number of counts (for example, equivalent to 15 seconds) according to the program stored in the memory 68, the clock output is sent to the rice milling machine motor 44. Outputs a start signal (timer means). (2) Similarly, it is 0, etc., which outputs a stop signal to all motors after a period of time corresponding to the number of coins inserted while counting the clock output.

The action of the upper side will be explained.

When the raw material is paddy, insert enough coins into the slot of the coin mech 58 to secure the operating time commensurate with the amount of paddy, then press the "paddy" selection button 59, and finally set the day labor selection button to one of the following. do. After completing these setting mold clamping operations, the paddy is charged into the input hopper 8. At the same time as a coin is inserted, the supply spiral motor 18 and the huller motor 3 are activated.
1. The motor 66 for the hulling elevator 9 and the rice milling elevator 11 starts operating, and the paddy from the input hopper 8 is transferred by the supply spiral ↓6 and supplied into the hulling elevator 9.

The paddy discharged from the elevator 9 is removed from the paddy tank 20 by the rolls 24.2 of the huller 10 by the switching shutter 21, which is set in advance at the inclined position port according to the above-mentioned "Kinomi" setting.
5. The raw material paddy is deflated by the simultaneous rotation of the delafting rolls 24 and 25! The mixed rice is subjected to V treatment, and as it passes through the lower wind sorting section 29, light husks and rice grains are removed, and the mixed rice is passed through the downflow gutter 3.
Rice is also supplied from the rice mill to the rice milling machine 12 via the 1-meter elevator 11. At this time, after a while after the start of operation, the sensor 36 detects the rice that has slipped out, and receives this detection output. 40-L gap control means is activated. In other words, the load current of the three drive motors is detected at predetermined time intervals, and the load current of the three drive motors is detected at predetermined time intervals. The roll gap is controlled to be wide or narrow by comparison with the current value. Then, this gap control is interrupted after a predetermined period of time has elapsed,
Thereafter, the rice hulling operation is continued while maintaining the gap at the time of the interruption.

■, limited from the time when each of the above motors starts? When the operation is started and the built-in timer means counts up the clock signal to a predetermined value, the rice milling machine motor 44 is activated. In the rice milling machine 12, the milling rolls 39 rotate simultaneously to remove the surface bran layer and chaff from the brown rice flour containing partially undeflated F1 grains, which is supplied to the rice mill, between it and the bran removal screen 41, thereby turning it into polished rice. . This polished rice passes through the polished rice take-out section 7 and is appropriately collected in the operation chamber 3.

In each operation, when the time set based on the input amount has elapsed, first the drive motor 18 of the supply spiral 16 stops, and after a predetermined time delay, the huller 10. If the rice milling machine 12 and the like are stopped, the amount of grain residue in the elevators 9 and 11 and the milling room 34 can be reduced.

Next, when the raw material is brown rice flour, the "Rice" selection button 60 is pressed to start work, and the switching shutter 21 in the paddy tank 20 is switched to the inclined position A. directly goes through the rice milling elevator 11 and mills rice 8!
12. For this reason, the surface bran layer is peeled off in the whitening room 38.

During the polishing process of the above raw material paddy or brown rice, bran removal screen 4
The rice bran, crushed rice husks, etc. discharged through the cyclone 53 reach the bran processing section 13 through a passage 43 due to the suction and feeding action of the conveyance fan 42, where they are transferred through a cyclone 53 and a transfer spiral trough 54. It is collected in rice bran bags 55, 55.

In this embodiment, the roll gap control is performed directly based on the detection result of the rice scraping detection means, but after a predetermined stabilization time and after confirming that the rice scraping detection continues, the roll gap is controlled. Control may also be performed.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention; the upper figure is an overall plan view, the second figure is a schematic flow diagram of the apparatus, the third figure is a front sectional view of a part of the rice milling machine, and the fourth figure is a part of the rice milling machine. 5 is a front view of the operation panel, and FIG. 6 is a control block diagram. In the figure, 3 is an operation room, 4 is a machine room, 5 is a raw material input section, 6 is an operation panel, 7 is a polished rice take-out section, 10 is a huller, 12 is a rice polishing machine, 2 is a switching shutter, 24.25 is off ■roll, 31
34 is a load current detection means, 35 is a control unit, 36 is a piezoelectric sensor (as a rice grain detection means), and 38 is a whitening room. 39 is a whitening roll, 41 is a bran removal screen, and 44 is a rice milling machine motor.

Claims (1)

[Claims] (1) In a system that is equipped with a huller that receives the supply of paddy and processes it, and a rice polisher that receives the scraped rice from the huller and processes it for polishing, a pair of hullers that perform the removal process described above. The roll gap control means for widening and narrowing the roll gap by the load current of the drive motor 31 is configured to operate in conjunction with the washed-out rice detection means 36 in order to detect when the washed-out rice flows down to the wind sorting section 26. Suri rice polishing equipment.