JP3690551B2 - Residual rice discharge mechanism in top feed type rice mill - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical rice mill that is formed by standing a stirring roll and a stripping wire netting, and more particularly to a residual rice discharge mechanism in an up-feed vertical rice mill.
[0002]
[Prior art]
Conventionally, rotatably mounted a stirring roll standing was bran removing metal wire net, vertical of rice mill performing milling by a lumpy friction stirring the rice grains by stirring protrusions of the stirring roll Ru many Oh. This cocoon-type rice milling machine has a feed-down type in which rice grains flow down from the upper side of the cocoon shaft by the natural fall of the rice grains, and the rice grains are raised from the lower side of the cocoon shaft against the dead weight for scouring. There are some feeding types, but the top feeding type is less likely to cause uneven rice grain density in the milling chamber and prevents uneven milling, and an elevator that transports the refined product to a tank or the like is not required. There are advantages such as points that are not available in the down-feed type. However, because of the structure of the top-feed type rice milling machine, a large amount of residual rice remained after milling at the bottom of the threshing spiral, making it difficult to discharge the residual rice. In particular, when changing rice grain varieties with coin-type rice mills or over-the-counter rice mills, etc., the rice grains remaining at the bottom of the milling room or cerealing spiral are removed to keep the machine clean and the remaining rice is spoiled. It is necessary to prevent the contamination of rice grains of different varieties.
[0003]
In view of this, the present applicant has proposed Japanese Patent Application Laid-Open No. 62-201651, etc. as an up-feed type rice milling apparatus. To describe this configuration, a porous wall removal cylinder that surrounds the outer periphery of the whitening trochanter, which is mounted on a rotating shaft standing upright, with a spiral trochanter at the bottom and a whitening trochanter at the top. In the rice milling machine provided with a brown rice supply unit at the lower part of the milling chamber formed in the space between the perforated wall stripping cylinder and the milling trochanter, and provided with a rice mill discharge unit at the upper part of the milling chamber, A mottled rice storage tank that temporarily stores mottled rice at the beginning of operation is provided in communication with the white rice discharge rice cake connected to the section, and the bottom of the mottled rice storage tank communicates with the lower part of the milling chamber A return passage, and an opening / closing valve for blocking or flowing out the mottled rice is installed in the return passage, and a residual rice removal opening / closing valve is installed in the lower part of the milling chamber. is there.
[0004]
Next, the operation of the above configuration will be described. The brown rice supplied from the brown rice supply section at the bottom of the milling chamber is pumped by the spiral trochanter from the bottom of the milling chamber, and the rice grains rub against each other by the stirring action of the milling trochanter. Then, the whitening action is performed. Then, at the start of operation, first, the mottled rice flows down into the mottled rice storage tank, and a slight amount of polished rice is stored following the mottled rice. When the mottled rice storage tank is full, the polished rice does not flow down into the mottled rice storage tank, and the milled rice is automatically drained from the machine to be discharged outside the machine.
[0005]
At the end of the operation, if it is detected that the brown rice in the tank is very small, the supply of the brown rice to the brown rice supply unit is stopped, the rice grains remain in the milling chamber, and the discharge of the white rice from the white rice discharge cease is also stopped. To do. At this time, when the return channel is opened, the mottled rice and polished rice stored in the mottled rice storage tank are supplied from the brown rice supply unit to the milling chamber, and the circulating milling is performed. It is discharged out of the machine through the outlet. As a result, the mottled rice at the beginning of the operation can be automatically refined to the desired whiteness without human intervention, and the rice grains remaining at the bottom of the milling chamber and the cerealing spiral are removed after the operation is finished, and the residual rice There is an action and an effect that variegated rice does not flow out of the machine.
[0006]
[Problems to be solved by the invention]
However, in the above-mentioned top feed type vertical rice milling apparatus, a brown rice supply unit is provided in the lower part of the milling chamber, a white rice discharge unit is provided in the upper part of the milling chamber, and residual rice is taken out in the lower part of the milling chamber. Since the on-off valve is installed, the white rice discharge trough position is high, while the residual rice outlet position is low, so it remains from the container that receives milled rice from the white rice discharge trough and the residual rice outlet. A container for receiving rice is required, and a platform for placing them is also required. In the case of bagging, it is necessary to support the rice bag by attaching hooks etc. to the high and low separate places, and when the rice bag is full, it will be newly added to the white rice discharge trough at the high place and the residual rice outlet at the low place. It was necessary to change the rice bag separately.
[0007]
Furthermore, etc. coin rice equipment and store rice equipment, also in terms of space to provide a rice bag separately and takeout residual rice and polished rice discharged trough since the installation area is limited, also, the operability There was also a problem in terms.
[0008]
In view of the above problems, the present invention makes it possible to use a container for receiving milled rice and a container for receiving residual rice in one rice bag by setting the white rice discharge trough position and the residual rice outlet position to the same height. It is easy to change containers such as rice bags, and it is a technical problem to provide a residual rice discharge mechanism in an up-feed type rice mill that reduces the space for placing rice bags. To do.
[0009]
[Means for Solving the Problems]
The present invention for solving the above problems, the upright and the porous wall bran removing polished cylinder, rotatably provided Tatejiku, the該竪axis, a helical rotor in the lower, a polished rotor in the upper, respectively A space is formed in the milling chamber, and the lower part of the milling chamber is connected to the brown rice supply unit, and the upper part is connected to the white rice discharge unit. The white rice discharge section is connected to a white rice discharge basket through a resistance device, and the circulation for selecting whether the rice grains flowing down from the white rice discharge basket are returned to the brown rice supply section or discharged to the outside of the machine. A discharge switching device is connected, and in the vicinity of the brown rice supply unit, a residual rice outlet and an open / close valve are provided at a position below the brown rice supply unit, and an external discharge channel is provided in the circulation / discharge switching device. Connected, and the lower end of the flow path for discharging outside the machine is provided at the same height as the residual rice outlet. It took the technical means.
[0010]
In addition, the brown rice detecting sensor for detecting that the supply of rice has disappeared into the milling chamber from the brown rice supply unit, provided a control device for controlling switching the circulation and discharge switching device, control device, vertical a step of starting by switching so as to circulate pearling raw brown rice immediately after starting the operation of rice mill the circulation and discharge switching device from the outboard side to the brown rice supply unit side, the circulation and discharge switching device after any time has elapsed from the start of operation The procedure for switching from the brown rice supply unit side to the outside of the machine, and when the brown rice presence / absence sensor recognizes that the remaining amount of raw brown rice supplied to the brown rice supply unit is short immediately before the operation of the vertical rice milling machine is completed, the circulation / a step of switching the discharge switching device from the outboard side to the brown rice supply side, then, the procedure for driving the on-off valve in the opening direction in order to discharge the residual rice from the remaining rice outlet to any time , To be provided with a.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view showing an outline of a vertical rice mill, FIG. 2 is a front sectional view showing an outline of the vertical rice mill, and FIG. 3 is an internal structure of the vertical rice mill of the invention. FIG.
[0012]
In FIG. 1 to FIG. 3, reference numeral 1 denotes the whole rice milling machine. A funnel-shaped brown rice tank 3 is placed on a machine frame 2, and a milling unit 5 is installed on a machine base 4 provided at the bottom of the machine frame 2. It is erected. The precision portion 5 is configured such that a lower end of a flange shaft 7 formed rotatably by bearings 6 and 6 is erected on the machine base 4, and the lower shaft 7 above the machine base 4 has a spiral trochanter 8 at the lower part. In addition, the sperm trochanter 9 is respectively mounted on the upper part. A plurality of stirring protrusions 39 provided in the vertical direction are provided on the surface of the whitening trochanter 9, and a blow hole 40 is formed below the stirring protrusion 39.
[0013]
The machine base 4 is provided with a supply cylinder 10 that surrounds the spiral trochanter 8, and a porous wall removal cylinder 11 that is connected to the supply cylinder 10 and surrounds the outer periphery of the whitening trochanter 9. Set up. A space mainly composed of the porous wall removing cylinder 11 and the whitening trochanter 9 is formed in the whitening chamber 12, and a space formed by the spiral trochanter 8 and the supply cylinder 10 in the lower portion of the whitening chamber 12 is a brown rice supply portion. 13 to form. In addition, the upper portion of the grain cleaning chamber 12 is polished rice discharge unit 14 ungated, the white rice discharge portion 14 becomes a high-density regions rice grain milling chamber 12 by providing a resistance device 15 is filled. The resistance device 15 includes a resistance plate 16 that applies an urging force to the discharge port of the white rice discharge unit 14, and a whiteness adjuster 17 that adjusts the urging force of the resistance plate 16 to adjust to an arbitrary whiteness. . The polished rice discharge unit 14 connects the polished rice discharge trough 18 to flow down the rice grains which are pearling downwardly, the further, by connecting the circulation and discharge switching device 19 to the white rice discharge trough 18 bottom, the milling chamber 12 A mechanism for selecting whether the passed rice grains are returned to the brown rice supply unit 13 or discharged to the outside of the machine is used. That is, the circulation / discharge switching device 19 is provided with a switching valve 20 inside, and can be switched to a circulation flow path 21 and an external discharge flow path 22 provided in the lower part by switching the switching valve 20. .
[0014]
At the lower end of the brown rice supply unit 13, a horizontal feeding spiral 23 is provided horizontally, and a driving motor 24 is attached to the horizontal feeding spiral 23 on the side opposite to the brown rice supply unit 13 side and is driven to rotate. Then, the lower end of the brown rice tank 3 and the circulation passage 21 are connected to the starting end side of the horizontal feeding spiral 23 via a bifurcated catch 25 (see FIG. 4), and the raw brown rice from the brown rice tank 3, Alternatively, the rice grains from the circulation channel 21 can be transferred to the brown rice supply unit 13. In addition, the受樋25, brown rice presence detection sensor 26 provided (see FIG. 4), a configuration such as to detect that the lost brown rice from brown rice tank 3.
[0015]
A residual rice outlet 27 and an opening / closing valve 28 for opening and closing the outlet 27 are provided at the lower end of the supply cylinder 10 in the vicinity of the brown rice supply unit 13. The on-off valve 28 is opened / closed by an appropriate on-off valve driving device 29 such as a gear motor or a solenoid. In addition, the brown rice supply unit 13 near the falling edge 22a of the outside discharge passage 22 connected to the circulation and discharge switching device 19, provided in the same height as the outlet 27 preparative residual rice (see FIG. 2). Thereby, the container which receives polished rice and the container which receives residual rice can be used as one container.
[0016]
A removal fan 33 is disposed on one side of the machine base 4, and a space between the outer periphery of the porous wall removal cylinder 11 and the cover 30 is formed in the removal chamber 31. A part of the cover is opened to form a scavenging outlet (not shown), and the scavenging outlet is connected to the suction side of the scavenging fan 33 via the flexible pipe 32. An air suction port 34 is formed on the suction side of the removal fan 33, and a door 35 that can be opened and closed is attached to the air suction port 34. The door 35 and the opening / closing valve driving device 29 are linked and connected by a link 36.
[0017]
In addition, an operation unit 37 is provided in the vertical bulge portion on the upper part of the front wall 2a of the machine frame 2 (see FIG. 1), and a control device 38 for controlling each drive device is provided behind the operation unit 37.
[0018]
Hereinafter, the operation of the above configuration will be described. When rice grains (brown rice) are put into the brown rice tank 3 and the operation button of the operation unit 37 is turned on, the rice grains in the brown rice tank 3 flow down the receiving bowl 25 and flow into the start end of the transverse feed spiral 23, and the transverse feed spiral 23 to the terminal brown rice supply unit 13. From the brown rice supply unit 13, it is lifted by a spiral trochanter 8 mounted on the shaft 7, and reaches the milling chamber 12. The rice grains are pumped toward the white rice discharge section 14 while filling the milling chamber 12, and the rice grains that have reached the white rice discharge section 14 from the milling chamber 12 are fed into the white rice discharge basket 18 by the resistance plate 16 of the resistance device 15. Outflow to is restricted. The resistance plate 16 is controlled by the whiteness adjuster 18, and the whiteness is adjusted by the whiteness adjuster 18 adjusting the strength of the urging force applied to the resistance plate 16.
[0019]
Rice grains whose whiteness has been controlled by the resistance device 15 at the beginning of operation have a low density of rice grains in the milling chamber 12, so that the milling action of the milling trochanter 9 is small and needs to be re-refined. For this reason, the control device 38 switches the switching valve 20 of the circulation / discharge switching device 19 to the circulation side immediately after the start of operation. As a result, the rice grains flow down the white rice discharge rod 18 against the resistance plate 15 and reach the circulation passage 21 of the circulation / discharge switching device 19. And it transfers to the brown rice supply part 13 and the whitening chamber 12, and the same whitening effect | action is performed.
[0020]
When an arbitrary time has elapsed from the start of operation, the density of rice grains in the milling chamber 12 increases, so that the milling action of the milling trochanter 9 becomes large and re-spermization becomes unnecessary. For this reason, the control device 38 switches the switching valve 20 of the circulation / discharge switching device 19 to the discharge side when an arbitrary time has elapsed from the start of operation so as to discharge the polished rice outside the apparatus. At this time, the milled rice is gradually stored in the rice bag 41 through the outside discharge passage 22.
[0021]
When approaching the end of operation, the brown rice presence sensor 26 recognizes that the brown rice supply from the brown rice tank 3 to the brown rice supply unit 13 is small. Then, the action of pumping the rice grains by the spiral trochanter 7 is weakened and the density of the rice grains in the milling chamber 12 becomes dilute, so that the switching valve 20 of the circulation / discharge switching device 19 is switched again from the discharge side to the circulation side. Perform re-peeling.
[0022]
After circulating pearling, to open the on-off valve 28 and drives the opening and closing drive unit 29 to eject the rice grains remaining in the apparatus from the residual rice outlet 27 to an arbitrary delay. At this time, the residual rice outlet 27 is located below the brown rice supply unit 13, and the lower end 22 a of the discharge path 22 connected to the circulation / discharge switching device 19 is the same as the residual rice outlet 27. Since it is provided at a height, it becomes possible to accommodate residual rice in addition to the rice bag 41 that contains polished rice. Thereby, the container which receives polished rice and the container which receives residual rice can be used as one container. Further, since it is not necessary to separately provide the rice bag 41 for the discharge path 22 and the residual rice outlet 27, it is easy to change the container such as the rice bag. The space is reduced and the operability is improved.
[0023]
At the time of discharging such residual rice, the door 35 is opened by the link 36 connected to the opening / closing drive device 29 and the door 35, the wind sucked from the dehumidifying chamber 31 becomes weak, and the rice grains remaining on the inner wall of the whitening chamber 12 are The remaining rice outlet 27 is discharged into the rice bag 41.
[0024]
【The invention's effect】
The present invention relates to upright the porous wall bran removing polished cylinder, rotatably provided Tatejiku, the該竪axis, a helical rotor in the lower, and JikuSo respectively polished rotor in the upper, the porous A space consisting mainly of a wall removal milling cylinder and the milling trochanter is formed in the milling chamber, the lower part of the milling chamber is connected to the brown rice supply unit, and the upper part is connected to the white rice discharge unit, Is connected to a white rice discharge basket through a resistance device, and connected to a circulation / discharge switching device for selecting whether the rice grains flowing down from the white rice discharge basket are returned to the brown rice supply unit side or discharged to the outside of the machine. In the vicinity of the brown rice supply unit, a residual rice outlet and an open / close valve are provided at a lower position than the brown rice supply unit, and an external discharge channel is connected to the circulation / discharge switching device. Since the lower end of the discharge channel is provided at the same height as the residual rice outlet, a container for receiving polished rice It can be used also a container for receiving the Tomemai in one container. In addition, it is not necessary to provide a separate rice bag for the discharge path outside the machine and the residual rice outlet, so it is convenient when changing containers such as a rice bag, and the area for placing the rice bag is reduced. The operability is also improved.
[0025]
In addition, the brown rice detecting sensor for detecting that the supply of rice has disappeared into the milling chamber from the brown rice supply unit, provided a control device for controlling switching the circulation and discharge switching device, control device, vertical a step of starting by switching so as to circulate pearling raw brown rice immediately after starting the operation of rice mill the circulation and discharge switching device from the outboard side to the brown rice supply unit side, the circulation and discharge switching device after any time has elapsed from the start of operation The procedure for switching from the brown rice supply unit side to the outside of the machine, and when the brown rice presence / absence sensor recognizes that the remaining amount of raw brown rice supplied to the brown rice supply unit is short immediately before the operation of the vertical rice mill is completed, the circulation / a step of switching the discharge switching device from the outboard side to the brown rice supply side, then, the procedure for driving the on-off valve in the opening direction in order to discharge the residual rice from the remaining rice outlet to any time Since with a, performs processing for discharging residual rice with fully automatic, no longer forget the discharge of residual rice.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an outline of a vertical rice milling machine according to the present invention.
FIG. 2 is a front sectional view showing an outline of a vertical rice mill.
FIG. 3 is an enlarged longitudinal sectional view showing an internal structure of a vertical rice mill.
FIG. 4 is a schematic cross-sectional view showing a receptacle that connects a brown rice tank and a circulation channel to a transversely feeding spiral.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical rice mill 2 Machine frame 3 Brown rice tank 4 Machine stand 5 Milling part 6 Bearing 7 Shaft 8 Spiral trochanter 9 Polishing trochanter 10 Supply cylinder 11 Porous wall removal cylinder 12 Polishing room 13 Brown rice supply part 14 White rice discharge part DESCRIPTION OF SYMBOLS 15 Resistance apparatus 16 Resistance board 17 Whiteness regulator 18 White rice discharge basket 19 Circulation / discharge switching apparatus 20 Switching valve 21 Circulation flow path 22 Exhaust discharge flow path 23 Cross feed spiral 24 Drive motor 25 Receipt 26 Detection of presence or absence of brown rice Sensor 27 Residual rice outlet 28 Open / close valve 29 Open / close valve drive device 30 Cover 31 Removal chamber 32 Flexible pipe 33 Removal fan 34 Air intake port 35 Door 36 Link 37 Operation unit 38 Control device 39 Stirring projection 40 Jet hole 41 Rice bag

Claims (2)

The upright with porous walls bran removing polished cylinder, rotatably provided Tatejiku, the該竪axis, a helical rotor in the lower, and JikuSo respectively polished trochanter to top, the perforated wall bran removing milling A space having a cylinder and the milling trochanter as main parts is formed in the milling chamber, the lower part of the milling chamber is connected to the brown rice supply unit, and the upper part is connected to the white rice discharge unit. And connecting a circulation / discharge switching device for selecting whether the rice grains flowing down from the white rice discharge rice cake are returned to the brown rice supply unit side or discharged to the outside of the machine, In the vicinity of the supply unit, a residual rice outlet and an opening / closing valve are provided at a position below the brown rice supply unit, and an external discharge channel is connected to the circulation / discharge switching device. In the top-feed type vertical rice mill, the lower end of the rice is provided at the same height as the residual rice outlet. Residual rice discharge mechanism that. A brown rice presence / absence sensor for detecting that brown rice is no longer supplied from the brown rice supply unit to the milling chamber and a control device for switching and controlling the circulation / discharge switching device are provided. procedures and, brown rice supply the circulation and discharge switching device in an arbitrary delay the start of the operation unit to start the outboard the circulation and discharge switching device in order to circulate pearling raw brown rice immediately after the start of operation is switched to the brown rice supply side Switching from the side to the outside of the machine, and the circulation / discharge switching device when the brown rice presence / absence sensor recognizes that the amount of raw brown rice supplied to the brown rice supply unit is small immediately before the end of the operation of the vertical rice mill Bei and procedures for switching to the brown rice supply part side from the outboard, then, a step of driving the opening and closing valve so as to discharge the residual rice from the remaining rice outlet and passes any time in the opening direction, the Residual Rice ejection mechanism in comprising Te claim 1 on according feed type vertical rice mill.

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