JPH10211436A - Unmanned husking rice milling facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly control the opening of husking rolls by equipping an operation selection means for performing working operation of a controlling means which more widens the opening of the husking rolls at the time of pass ing husked rice than the opening of the husking rolls at the time of passing paddy. SOLUTION: When a 'paddy' selection button is pushed and a whiteness selection botton is selected and milling degree is set up and paddy is charged into a charging hopper 8, paddy is supplied to a paddy tank 20 by a husking elevator 9 and supplied on husking rolls 24, 25 through a grain supply valve 21. On one hand, when a raw material is husked rice particles and a 'husked rice' selection button is pushed and operation is started, a grain supply valve 21 is closed by a grain supply controlling motor 21a and also the opening of the husking rolls 24, 25 is expanded and controlled by a roll opening control motor. Thereby, husked rice supplied from the charging hopper 8 is passed through the husking rolls 24, 25 whose opening is expanded and controlled and supplied to a rice milling machine 12 through a flow-down gutter 31 and a rice milling elevator 11 and polished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an unmanned rice milling facility.

[0002]

2. Description of the Related Art In recent years, unmanned rice milling facilities for browning and milling raw brown rice and paddy brought in by users have become widespread. This unmanned hulling milling facility is composed of an input hopper to which the user supplies grains, a huller made up of a pair of hulling rolls for hulling the paddy supplied from the input hopper, and a huller. A rice milling machine that wind-selects the hulled rice, a rice miller that mills brown rice that has been hulled in the hulling air selector, and a white rice milled by the miller. It consists of a white rice tank to be taken out.

[0003] Then, the rice hopper located above the rice huller is fed to a lower rice hulling roll or is supplied to a rice-slurry wind selection unit located below the huller. A switching valve for switching and supplying the grains is provided. Depending on whether the supplied grains are rice or brown rice, the switching valve is switched so that the brown rice is a pair of hulling rolls. The rice was not hulled in the gap.

[0004]

However, in such a conventional apparatus, a brown rice flow path bypassing the hulling roll must be formed separately from the hulling roll, and the structure is complicated. And the control becomes complicated. Therefore, the present invention uses a single grain flow path by using a device that controls the gap between the hulling rolls without providing a grain flow path that bypasses the hulling roll. As it is, pass the hulling roll without damaging brown rice,
It is intended to eliminate the drawbacks of the conventional device.

[0005]

The present invention employs the following technical means in order to solve the problems of the prior art. That is, there are provided a rice hulling unit capable of separating rice husk and brown rice by passing the rice between the rotating pairs of rice hulling rolls, and a rice milling unit for whitening the brown rice passing between the rice hulling rolls. The hulling rolls 24, 2 when passing brown rice rather than the gap between the hulling rolls 24, 25 when passing chaff.
An unmanned hulling rice mill provided with operation selecting means for operating the hulling roll gap adjusting means for widening the gap of 5 in the operation room 3 and providing the hulling roll gap adjusting means in the machine room 4. The structure of the facility.

[0006]

The user supplies the paddy or brown rice, and operates the switch of the operation selecting means to select whether the operation is the rice polishing using the rice paddy or the rice polishing using the brown rice. Thus, in the case of rice milling, the supplied rice is supplied to a pair of rice milling rolls 24 and 25 of the rice milling means and milled, and brown rice is milled by the subsequent rice milling means. The milled white rice is taken out to the operation room 3.

[0007] In the case of rice milling using brown rice, the hulling roll when the hulling roll gap means provided in the machine room 4 is operated to pass the hulling in connection with the selection operation. 2
Because the gap is larger than the gap between 4,25,
After passing through the wide gap between the radiators 24 and 25, it is supplied to the milling means for whitening, and then taken out to the operation room.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. 1 is a building where an unmanned hulling rice mill is installed.
The interior is partitioned by a partition wall 2 into an operation room 3 and a machine room 4. On the operation room 3 side, there are a raw material padding section 5, an operation panel 6, a white rice extracting section 7, and the like. On the machine room 3 side, a charging hopper 8, a rice hulling elevator 9, a rice hulling machine 10, a rice polishing machine. 11, a rice mill 12, a bran processing unit 13 and the like are provided.

As shown in FIG. 2, the raw material padding section 5 has a raw material placing table 15 on the operation room 3 side and a machine space 4 side before and after the opening 14 of the partition wall 2. The feeding hopper 8 is configured to face each other. A feeding gutter 17 is provided below the feeding hopper 8 in which a feeding spiral 16 is provided. One end of the shaft of the feeding spiral 16 is connected to a feed driving motor 18. , And can be driven to rotate. 19 is a sieve screen.

[0010] The transfer terminal side of the supply gutter 17 is viewed from the hopper of the huller 9, and the upper part of the huller 9 is communicated with the hulling tank 20 of the huller 10. This paddy tank 20
A grain supply valve 21 is provided at a lower portion of the hopper. Huller 10
Is composed of a pair of hulling rolls 24, 25,
These hulling rolls 24 and 25 rotate at different peripheral speed differences,
One of the hulling rolls 24 can move in the distance with respect to the other hulling roll 25. In other words, the hulling roll 24 is configured as shown in FIG.
As shown in FIG. 7, the adjusting screw 27 supported by the swinging member 26 and screwed to the distal end side of the swinging member 26 is rotated by the forward / reverse rotation of the roll gap control motor 28 to set the paddy on the fixed side. In this configuration, the roller can be moved far and near with respect to the sliding roll 25, and the roll gap can be adjusted widely.

Reference numeral 29 denotes a polished rice wind selection section for wind-selecting the polished rice, 30 a transfer spiral for collecting light pity and the like separated from the polished rice, and 31 a mixed rice. Floating gutter for leaking and removing small rice in the inside.
Reference numeral 3 denotes a dust cylinder. Hulling rolls 24, 25 and transfer spiral 3
The drive unit such as 0 is driven by the huller motor 34.

The discharge spiral end of the transfer spiral 30 is
It communicates with the hulling elevator 9. Further, the mixed rice from the downspout 31 communicates with the hopper of the rice mill 11 via an appropriate transfer unit. The milling unit of the rice mill 11
It faces the second brown rice tank 55. This rice mill 12
Is a known form in which a whitening roll (not shown) is provided in the whitening chamber 35, and the bran separated from the fine platinum net (not shown) is processed by a bran transport fan (not shown) to the bran processing unit 13 Transported to The outlet side of the whitening chamber 35 communicates with the white rice tank 36 of the white rice extraction section 7.

The bran processing section 13 includes a cyclone 36a, a bran transfer spiral 37 for horizontally transferring the bran that has fallen below the cyclone 36a, a bran transfer trough 38, and the bran transfer trough 3 described above.
8 comprises a discharge portion opened to the middle part and the terminal end side, and bran bags 39, 39 for receiving the bran dropped from the discharge portion. As shown in FIG. 4, the operation panel 6 on the operation room 3 side has a lamp 40 for charging raw materials, a lamp 41 for indicating the number of coins, a coin mech 42, a paddy / brown rice selection button 43a,
43b, whiteness selection buttons 44, 45, 46 (in the example in the figure,
You can select from three levels: white, standard, and eighth. ), Price list 4
7 (for example, "Fir 12 kg 100 yen""rice 10 kg
100 yen "...) etc. are arranged. This coin mech 4
2 is provided with an identification section for inserted coins, a coin sensor 48 operated for each inserted coin, and the like. The operation panel 6 is provided with a control unit (CPU) 49 having a built-in microcomputer for performing drive control of each unit drive motor and the like.

The arithmetic control unit (CPU) 49 includes detection information from the coin sensor 48 and whiteness selection buttons 44 and 4.
Whiteness selection information from 5, 46, paddy / brown rice selection button 43
a, 43b, the detection information of the load current detector 50 of the huller motor 34 of the huller 10, the clock signal, and the like. On the other hand, as the output information, a control signal to the supply driving motor 18 and the grain supply valve 21
Signal to the grain supply adjusting motor 21a for adjusting the grain size, the control signal to the huller motor 34 of the huller 10, the elevator 9,
Control signal to elevator motor 51 for driving 11, rice mill 1
A control signal to a rice milling machine motor 52 for driving, a control signal to a bran transfer motor 53 for driving a bran transfer spiral 37, a control signal to a whiteness adjusting motor 54, a roll gap control mode. There is an open / close command signal to the data 28.

The CPU 49 mainly has the following functions. The number of coins (100 yen coin) to be inserted into the coin mech 42 is read, the operation time is calculated, and the supply drive motor 18, the huller motor 34 for driving the huller 10, etc. are calculated over the calculated time T. To output a drive signal. The detected load current of the huller motor 34 is taken in and compared with a preset standard load current.

On the basis of the result of the comparison, a forward output signal or a reverse output signal is output to the roll gap control motor 28. That is, when the detected load current is larger than the standard load current, the roll gap control motor 28 is reversed to enlarge the gap between the hulling rolls, and the detected load current is smaller than the standard. In the case of (1), a signal for rotating the roll gap control motor 28 in the normal direction is output in order to reduce the gap between the hulling rolls (hulling roll gap control means).

The above control is performed by detecting that the number of coins inserted into the coin mech 42 is equal to or more than a predetermined number (for example, two) and outputting a control execution signal to be executed only for a predetermined short time t. (Control execution time control means). When the control execution time elapses, a control cutoff signal and a gap fixing maintenance signal are output in order to maintain the hulling roll gap at the elapse of the control time t.

Next, the operation of the above embodiment will be described. In the case where the raw material is paddy, coins enough to secure the operation time corresponding to the amount are inserted into the insertion slot of the coin mech 42, then the “paddy” selection button 43a is pressed, and finally the whiteness selection buttons 44, 45 , 46,
Set the degree of milling. After completing these setting preparations, the paddy is put into the input hopper 8. Each unit of the apparatus starts operation at the same time as coin insertion, and the paddy from the input hopper 8 is transferred by the supply spiral 16, and It is supplied into the elevator 9. The unhulled paddy from this hulling elevator 9 is stored in a paddy tank 20
Is supplied to the hulling roll 24, which is set at a predetermined gap via a grain supply valve 21 which is previously set to a predetermined opening in accordance with the setting of the "hull". 25. Raw rice is hulled by the rotation of hulling rolls 24 and 25 and separated into brown rice and chaff, while passing through the lower air selection unit 29, light chaff and pity are removed, and the mixed rice is drained down. From 31, it is supplied into the rice mill 12 via the rice mill 11.

In the rice mill 12, a whitening roll (not shown) is rotated to separate the brown rice grains including partially unhulled grains, which are sequentially supplied, from the surface bran layer or the rice hulls with a fine platinum net. And white rice. The polished rice passes through the polished rice extraction section 7 and is appropriately operated in the operation room 3.
It is collected inside. When the time T set by the input amount elapses, the operation of each part of the hulling machine 1 is first stopped by the supply driving motor 18 of the supply spiral 16 and delayed by a predetermined time.
0, the rice milling machine 12 etc. is stopped, and the hulling elevator 9,
Grain residue in the rice mill 11 and the whitening room can be reduced.

Next, when the raw material is brown rice grains, the user presses the "brown rice" selection button 43b to start the operation. Then, the grain supply valve 21 in the paddy tank 20 is closed by the grain supply adjusting motor 21a, and the gap between the hulling rolls 24, 25 is opened by the roll gap adjusting motor 28. Then, the spread of the brown rice is adjusted so as not to be hulled by the two hulling rolls (mean hulling roll gap expanding means). In this way, after the hulling roll gap is adjusted to expand, the grain supply adjusting motor 21a is adjusted to open.

Thus, the brown rice from the charging hopper 8 is transferred by the supply spiral 16 and supplied to the hulling elevator 9 to be hulled. The hulled rice from the hulling elevator 9 is supplied to the hulling tank 20. Then, it passes between the grain supply valve 21 and the hulling rolls 24 and 25 whose gaps are adjusted to be expanded and is supplied to the milling machine 11 through the downflow gutter 31 and is supplied to the milling machine 12 through the milling machine 11. The bran or crushed rice hulls discharged and refined and discharged through the fine platinum net are conveyed by air to the bran processing unit 13 and collected by the bran bags 39 and 39 while being transported by the bran transport gutter 38 through the cyclone 36a. Is done.

Next, FIGS. 6 and 7 will be described. Explaining the difference from the above-described embodiment, a paddy / brown rice discrimination sensor 61 that can discriminate between paddy and brown rice is arranged at the bottom of the input hopper 8. This paddy / brown rice discrimination sensor 61
Outputs detection information to the CPU 49 via the input interface. Then, if the type of the paddy / brown rice is determined and the rice is the paddy, the CPU 49 sends, for example, the paddy button 4 corresponding to the usage fee of 100 yen, 400 yen, and 600 yen.
A lighting command signal is output to 3a, 43a,.
In the case of brown rice, the usage fee is 100 yen, 200 yen.
Yen, brown rice buttons 43b corresponding to 300 yen, 43b, ...
A light-up command signal is issued to turn on the light, and informs the user of a button that can be used to separate rice and brown rice and to perform an ON operation.

When the user inserts the required number of coins into the coin mech 42 and presses the paddy selection button 43a and the brown rice selection button 43b corresponding to the type and amount of the brought-in kernel, the above-described embodiment is used. Similarly, a grain processing operation is started. With this configuration, the user
It is possible to facilitate the use and prevent troubles of machinery without mistakenly pressing the button of brown rice.

Next, with reference to FIG. 8, differences from the embodiment of FIGS. 1 to 5 will be described. The moisture sensor 62 is provided in the rice tank 20 of the rice huller 10 so that the moisture of the grains supplied to the rice tank 20 can be detected.
The detection information of No. 2 is input to the CPU 49. Rice milling machine 1
The first frying unit is branched into a supply flow path to the subsequent rice mill 12 and a discharge flow path 63 to the white rice tank 36, and switches a switching valve (not shown) by a switching motor (not shown). It is configured to operate and switch to one of the flow paths.

When the paddy or brown rice brought in by the user is sent to the paddy tank 20, the moisture is detected by the moisture sensor 62 and input to the CPU 49. And
If the detection information is lower than the predetermined reference moisture value, the rice is suitable for hulling or milling, so that hulling / milling is performed in the same manner as in the above embodiment. If the moisture content is higher than the predetermined reference moisture value, the gap between the hulling rolls 24 and 25 is adjusted to be expanded by the roll gap adjusting motor 28 in response to a command signal from the CPU 49, so that the kernels are reduced. The opening is adjusted to the gap where the hulling rolls 24 and 25 do not hull, and then the grain supply valve 21 is adjusted to open. Then, the grains in the paddy tank 20 pass through the expanded gaps of the paddy rolls 24 and 25, the downspout 31, the rice milling machine 11, the switching valve (not shown), and the extraction channel 63, and the white rice It is taken out to the tank 36, a high moisture display portion (not shown) of the operation panel 6 indicates that the moisture is high, and the inserted coin is returned from the return slot. Thus, in the case of high moisture grains, hulling and milling are suspended,
Due to the low hulling rate in the hulling roll, it is possible to prevent the inconvenience of mixing of the hulled rice into the brown rice after the whitening and the troubles of the hulling machine 10 and the rice milling machine 12 beforehand.

It is to be noted that a moisture sensor 62 may be arranged at the fry outlet of the hulling and raising machine 9, and a moisture sensor 62 is arranged at the input hopper 8, and when high moisture is detected, the supply spiral 16 May be reversely rotated to take out the grains from the charging hopper 8. Next, FIG. 9 will be described. The milling degree of the milling machine 12 in the unmanned rice milling facility can be selected from, for example, upper white milling, standard milling, and octamer milling. Changes. Therefore, in this embodiment, rice is polished with substantially the same degree of milling without being affected by the level of the temperature.

A thermometer 64 is placed in the brown rice tank 55 of the rice mill 12.
And the detection information of the thermometer 64 is input to the CPU 49. The rice mill 12 is provided with a known whiteness adjusting mechanism (not shown). When the whiteness adjusting motor 54 is rotated forward or backward, the whiteness adjusting mechanism is adjusted. Next, a correction means for whiteness adjustment based on the temperature in the CPU 49 will be described. The adjustment arithmetic expression at the standard temperature is as follows: “upper white position−predetermined number of positive rotations = standard whiteness position, standard position−predetermined number of positive rotations = eight minute refining position, upper white position− (2 × predetermined number of positive rotations) Rotation) = octant position. When the detected temperature from the thermometer 64 is input to the CPU 49, the level relative to the standard temperature (for example, 20 ° C.) is determined. Is calculated, and the CPU 49 sets the whiteness adjustment motor 5
A correction rotation command is issued to 4, and the whiteness adjustment mechanism is adjusted. On the other hand, when the temperature is higher than the standard temperature, the correction decrease adjustment rotation speed is calculated based on the decrease correction coefficient, and the whiteness adjustment mechanism is adjusted based on the calculated decrease adjustment rotation speed. Note that a configuration may be employed in which the correction adjustment rotation speed is calculated in consideration of humidity in addition to temperature.

As described above, the brown rice tank 55 of the rice mill 12
The whiteness adjusting mechanism is adjusted in accordance with the temperature of the above, so that even in summer or winter, fine white rice, standard rice and octant rice can be produced with a substantially constant degree of whiteness. Next, another embodiment of the bran processing unit 13 will be described with reference to FIG. A cyclone 36a is arranged near the partition wall 2 of the machine room 4, a bran extraction hopper 65 is arranged below the cyclone 36a, and a bran extraction door 66 is provided above the bran extraction hopper 65. . The bran taken out by the bran transport fan (not shown) of the rice mill 12 passes through the bran transport pipe 67 to the cyclone 36.
a, and after the air is exhausted by the cyclone 36a, the bran falls, and the bran switching valve 68 removes the bran from the machine and the bran collection pipe 6
The configuration is switched to the 9 side and taken out.

When the bran switching valve 68 is switched to the outside take-out side, the bran taken out by the bran take-out hopper 65 is opened into the operation room 3 by opening the bran take-out door 66. When the bran switching valve 68 is switched to the bran collection pipe 69 side, the bran is sucked by the bran suction fan (not shown) provided on the bran bag 39 side and stored in the bran bag 39 via the bran transfer gutter 38. It is a configuration that is performed. The starting end of the dust-absorbing pipe 69a faces the bran removal hopper 65, and the end of the bran-absorbing pipe 69a is connected to the suction unit of a blower fan (not shown) for blowing out the bran of the rice milling machine 12. I have.

With this configuration, the dust from the bran removal hopper 65 is sucked by the bran collection pipe 69 to facilitate the removal of the bran. Next, another embodiment of the bran processing unit 13 will be described with reference to FIG. The bran transfer spiral 37 of the bran transfer gutter 38 can be transported to the bran bag 39 and the bran take-out spiral gutter 71 by reversing the bran spiral motor 70 in the forward / reverse direction. Connect to the take-out spiral gutter 72,
The second bran removal spiral gutter 72 extends through the partition wall 2 to the operation room 3 side through the transportation end portion of the second bran removal spiral gutter 72. And rice mill 1
The bran extraction spiral gutter 71 and the second bran extraction spiral gutter 7 are stored in the bran bag 39 or while preventing the clogging.
2 and can be taken out to the operation room 3.

Next, FIG. 12 will be described. Rice milling machine 1
A milling roll 12b is rotatably supported in the milling chamber 12a, and a refined platinum net 12c is arranged on an outer peripheral portion of the refined roll 12b, and a part supplied to the refined platinum net 12c is provided. Brown rice grains including unhulled grains are refined with refined platinum net 12c
In this configuration, the surface bran layer or the rice husk is peeled off and milled with the rice 12b.

The fine platinum net 12c is rotatable around the axis of the white rolling roll 12b, and a compression plate 12d is arranged to face the grain discharge side of the fine platinum net 12c. The whitening roll 12b is provided with a whiteness adjusting spring 74 via a connecting member 73 to provide resistance to the rotation of the fine platinum net 12c by the pressure of the grains during the whitening operation. The outlet spring 75 acts on the compression plate 12d, and is linked to the connecting body 73 via the wire caulking 81 of the wire 76.

In the whiteness adjusting spring 74, there is located a whiteness adjusting rod 77 which is rotated forward and reverse by the whiteness adjusting motor 54.
8, the play nut 78 is applied to one end of the whiteness adjusting spring 74 to extend and contract the length of the spring to adjust the tension. Further, a bolt 79 having a large screw pitch is fixed to the distal end of the whiteness adjusting rod 77 via a coupling, a second play nut 80 is screw-fitted to the bolt 79, and the distal end side of the wire 76 is extended. Then, while being inserted into the hole of the bolt 79,
The wire caulks 81, 81 are located on both sides of the wire and are linked.

However, when pressure is applied to the grains during the whitening operation, the fine platinum net 12c rotates from the position of the solid line to the position of the virtual line against the whiteness adjusting spring 74, and In connection with the rotation, the wire 76 is pulled to the left, and the compression plate 12d opens from the position of the solid line to the position of the imaginary line. In this way, the grain is refined while repeatedly increasing and decreasing the pressure of the kernel. Things.

Immediately before the end of the work, the whiteness adjustment mode
When the counter 54 is rotated forward a predetermined number of times, the wire 76 is pulled to the left, the compression plate 12d is adjusted to a predetermined opening, and then, by the forward rotation of the bolt 79, through the screw portion having a large pitch, (2) The play nut 80 is quickly moved downward, the wire 76 is quickly pulled through the wire caulking 81, the compression plate 12d is quickly opened, and the grains in the rice mill 12 are quickly discharged. Work efficiency is improved.

[0036]

When the rice milling operation is carried out by bringing in brown rice, the brown rice passes between the hulling rolls like the rice, but the machine room 4
Since it passes through a gap wider than the gap between the hulling rolls 24 and 25 when passing the hulling set by the hulling roll gap adjusting means provided in, the load such as hulling work can be received. In addition, the occurrence of damage can be prevented, and the operation selecting means can be easily performed in the operation room 3. And
The structure of the unmanned rice milling facility becomes simple.

[Brief description of the drawings]

FIG. 1 is an overall plan view

FIG. 2 is a flowchart showing the outline of the apparatus.

FIG. 3 is a side sectional view of the huller.

FIG. 4 is a front view of the operation panel.

FIG. 5 is a block diagram.

FIG. 6 is an overall plan view showing another embodiment.

FIG. 7 is a front view of an operation panel showing another embodiment.

FIG. 8 is an overall plan view showing another embodiment.

FIG. 9 is a block diagram showing another embodiment.

FIG. 10 is a cutaway side view.

FIG. 11 is a plan view showing another embodiment.

FIG. 12 is a cut side view and a front view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 3 ... Operation room 4 ... Machine room 5 ... Raw material input part 6 ... Operation panel 7 ... White rice extraction part 10 ... Rice hulling machine 12 ... Rice mill 24, 25 ... Rice hulling roll 28 ... Control motor 34 ... Driving motor -Ta 42 ... coin mech 43a ... "paddy" selection button 43b ... "brown rice" selection button 49 ... calculation control unit (CP
U) 50: Load current detector 36 ... White rice tank 37 ... Bran transfer spiral 38 ... Bran transfer trough 39 ... Bran bag 42 ... Coin mech 49 ... CPU 54 ... Whiteness adjustment motor 61 ... Rice / brown rice discrimination sensor 62 ... Moisture Sensor 63 ... Extraction flow path 64 ... Thermometer 65 ... Bran extraction hopper 66 ... Bran extraction door 68 ... Bran switching valve 69 ... Bran collection pipe 71 ... Bran extraction spiral gutter 73 ... Connecting body 74 ... Whiteness adjusting spring 76 ... Wire 77 … Whiteness adjusting rod 78… play nut 79… bolt 80… second play nut

Claims (1)

[Claims] 1. A hulling means which can be separated into chaff and brown rice by allowing the hulling to pass between a pair of rotating hulling rolls,
A rice milling means for whitening brown rice passed between the hulling rolls, so that the gap between the hulling rolls when passing brown rice is wider than the gap between the hulling rolls when passing the paddy An unmanned hulling rice mill in which operation selecting means for operating a hulling roll gap adjusting means is provided in an operation room and hulling roll gap adjusting means is provided in a machine room.