JPS6363250B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice mixing device for mixing processed rice (enriched rice) coated with vitamin supplements, flavor, taste improvers, etc. into polished rice in a quantitative ratio.

In conventional rice mixing equipment, different types of rice grains to be mixed are weighed and put into vertically divided tanks, and the opening degree of the shutter installed in each tank is adjusted according to the rice mixing ratio. Rice grains can be mixed by discharging rice grains at appropriate flow rates, or a screw conveyor can be set up in the center of a vertical cylindrical tank, and rice grains of different types can be put into the tank at a predetermined ratio and accommodated. The rice was mixed by stirring using a screw conveyor. However, in the former case, it is difficult to adjust the opening degree of the shutter so that the amount of rice grains actually discharged continues to match the rice mixture ratio;
In the latter case, since the rice grains are forcibly mixed by a screw conveyor while still being contained, there is a risk of creating broken rice.

Furthermore, there is also a known mixer for powder and granular materials, as shown in Japanese Utility Model Application Publication No. 48-87672, in which mixing containers equipped with stirring fans are stacked one above the other below a plurality of hoppers. However, this device also did not allow the amount of material discharged from the multiple hoppers to consistently match the desired mixing ratio.

The present invention was developed in order to solve the above problems, and the discharge port of the vertical measuring rotor for processed rice is connected to the processed rice supply port of the vertical measuring rotor for milled rice provided at the lower part of the rotor. By communicating through a flow path, polished rice and processed rice can be taken out continuously in an accurate ratio, and a stirring impeller is rotatably mounted on a vertical shaft for mixing. By installing a rice grain stirring device with hoppers placed one above the other, the mixture of polished rice and processed rice, which is continuously taken out at an accurate ratio as described above, is stirred while flowing down inside the mixing hopper. The purpose is to prevent the generation of broken rice by stirring the rice with a rotary impeller.

The present invention will be explained with reference to embodiment figures. Reference numeral 1 denotes a box-shaped machine frame, and a vertical processed rice measuring rotor is provided with a milled rice input port 2 on one side of the upper wall of the machine frame 1 and a processed rice input port 3 on the other side. A vertical milled rice measuring rotor 5 is provided on the upper side inside the machine frame 1 and connected to the input port 2, and a stirring impeller 6 is installed on the lower side inside the machine frame 1. Vertical shaft 7
A mixing hopper 8 rotatably attached to the rotor is provided, and mixing hoppers 9 having the same structure are placed one above the other to form a rice grain stirring device 10. and a processed rice supply port 1 provided in the milled rice measuring rotor 5 provided at the bottom.
2 are connected by a flow path 13, and the supply port 14 of the stirring device 10 is connected to the discharge port 15 of the milled rice measuring rotor 5 at the top, and 16 is connected to the stirring device 1.
The electric motor 17 provided in the hopper 16 rotates the impellers 6, 6 of the upper stirring device 10, and the vertical shaft 18 of the milled rice measuring rotor 5 rotates. A rotation speed detection device 21 consisting of a rotating slit plate 19 and a photo center 20 is provided, and the detection device 21 is connected to a control device 22.
The rotating vertical shaft 2 of the processed rice measuring rotor 4 is connected to the
It is electrically connected to a step motor 24 provided at 3.

With the above configuration, when the device is started by charging polished rice to the polished rice input port 2 and any processed rice to the processed rice input port 3, the Each of the multi-blade wheels rotates, and the processed rice in the upper measuring rotor 4 flows into the flow path 1.
3 to the lower measuring rotor 5 and mix with the polished rice between the wheel blades, and the mixed rice is
It flows down from the discharge port 15 of the metering rotor 5 to the supply port 14 of the rice grain stirring device 10 in the lower part. Normally, when mixed with polished rice, processed rice such as coated rice with vitamins, fortified rice, amylase, cyclodexitron, and surfactants is mixed at a mixing ratio of 0.1~
1.0% (weight ratio), and each measuring rotor 4 or 5 measures in advance each empty volume between the blades of each multi-blade wheel and each volume of processed rice and polished rice. If this is done, the flow rate of each metering rotor 4 or 5 can be set to a preset mixing ratio by increasing or decreasing the rotational speed of each wheel.

In the present invention, a rotational speed detection device 21 is provided on the rotational vertical shaft 18 of the milled rice measuring rotor 5, and the detection device 21 is connected to the step motor provided on the rotational vertical shaft 23 of the processed rice measuring rotor 5 via the control device 22. 24, the rotational speed of the rotating vertical shaft 18 is detected by the number of times the light beam transmitted through the slit of the rotating slit plate 19 fixed to the vertical shaft 18 is received in a predetermined time, and the detection signal is detected. (Pulse signal) rotates the step motor 24 via the control device 22, and rotates its wheels by a certain angle to flow down the processed rice.
Continuously mix with polished rice at a predetermined ratio and discharge through outlet 15.
The rice grains flow down and are supplied to the rice grain stirring device 10 at the bottom. In the agitating device 10, the impellers 6, 6 installed above and below rotate, and the flowing mixed rice is evenly dispersed and falls, and the mixed rice is sufficiently agitated and mixed to be discharged into the discharge hopper 16 at the bottom. The fortified mixed rice is then discharged and left for the next process. The mixing ratio of the mixed rice can be adjusted by the control device 22.

In this way, the rice mixing device of the present invention can completely prevent the occurrence of incompletely mixed rice and broken rice that occur in the conventional device described above, and also can mix processed rice and polished rice by the related interlocking rotation of each measuring rotor. Because polished rice is mixed in at a predetermined ratio and thoroughly stirred and mixed by multiple stirring impellers, it is possible to ensure a highly accurate mixing ratio, and the entire amount of rice can be processed into a uniform mixed rice. This has the effect of making it possible to reliably, smoothly and quickly mass produce high quality fortified mixed rice.

[Brief explanation of drawings]

The drawing is a side sectional view of an embodiment of the invention. 1... Box-shaped machine frame, 2... Inlet for polished rice, 3...
... Input port for processed rice, 4... Vertical measuring rotor for processed rice, 5... Vertical measuring rotor for polished rice, 6... Impeller for stirring, 7... Vertical shaft, 8, 9... For mixing Hopper, 10...Rice grain stirring device, 11...Discharge port, 1
2... Processed rice supply port, 13... Flow path, 14...
Supply port, 15...Discharge port, 16...Discharge hopper, 17...Electric motor, 18...Rotating vertical shaft, 19...
...Rotating slit plate, 20...Photo sensor, 2
1...Rotation speed detection device, 22...Control device, 2
3...Rotating vertical shaft, 24...Step motor.

Claims (1)

[Scope of Claims] 1. The discharge port of the vertical measuring rotor for processed rice is connected to the processed rice supply port of the vertical measuring rotor for milled rice provided at the lower part of the rotor via a flow path, and further below, A rice grain agitating device is provided inside which is stacked above and below a mixing hopper in which a stirring impeller is freely rotatably mounted on a vertical shaft, and the discharge port of the milled rice measuring rotor is connected to the supply port of the agitating device. This rice mixing device is characterized by: 2. The rice mixing device according to claim 1, wherein the vertical processed rice measuring rotor includes a step motor that rotates in response to a detection signal of the rotational speed of the polished rice measuring rotor.