JPS60197245A - Controller for yield of rice cleaning - 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 Technical Field The present invention relates to an apparatus for controlling the rice milling yield by measuring the weight of supplied brown rice and polished rice when milled by a rice milling machine.

Conventional technology Conventionally, in order to measure the rice milling yield of a rice milling machine, one measuring device for brown rice was installed in the front process of the rice milling machine, and one measuring device for white rice was installed in the downstream process, and the rice was measured using the measuring device for brown rice. This was done by milling brown rice in one device using a rice milling machine, discharging all of the milled white rice to a milled rice measuring device, then weighing it with the milled rice weighing device, and comparing these measured values. However, such equipment cannot quickly send brown rice or white rice to the next process, and its processing capacity is low. Also, Special Publication No. 5B-5098 and Special Publication No. 39-29151
There is also a measuring device that sends brown rice at a constant flow rate to a rice milling machine and installs a damper or adjustment tank in the post-process of the rice miller to perform continuous processing, but these devices do not require a damper or adjustment tank. In addition, there was a drawback that accurate measurements of polished rice could not be obtained at the discharge section from these dampers and adjustment tanks.

Purpose In view of the above points, the present invention is capable of accurately and continuously weighing polished rice directly discharged from a rice milling machine without requiring a damper or an adjustment tank, and efficiently measuring rice milling yield. Another object of the present invention is to provide a rice milling yield control device that ensures a preset rice milling yield.

Outline of Configuration The rice milling yield control device of the present invention is provided with a brown rice presence state detection device for detecting the presence or absence of brown rice between a rice milling machine having a brown rice measuring device and a polishing level adjustment device, and In the post-process, a measuring device for polished rice is provided, which includes a plurality of hopper-type weighing machines, a supply path having a plurality of discharge ports communicating with each of the weighing types, and a switching valve for switching the discharge ports.
the brown rice measuring device; the brown rice presence state detection device;
The j1 weighing device for polished rice is electrically connected to each other via a control device having an arithmetic circuit, and the control device uses the measured values of brown rice and polished rice weighed by the brown rice measuring device and the polished rice measuring device. It is characterized in that it controls the whiteness adjustment device.

Example Hereinafter, the present invention will be described in detail based on the drawings.

FIG. 1 shows an embodiment of the present invention, in which 1 is a grain lifting machine for supplying brown rice to an adjustment tank 3, and 2 is a grain lifting machine for supplying brown rice to an adjustment tank 3; f! This is an overflow channel provided at the upper discharge part of mi to return surplus rice. An on-off valve 5 opened and closed by an air cylinder 4 is provided at the outlet of the adjustment tank 3, and a measuring device 6 for brown rice is provided below the adjustment tank 3.

The measuring device 6 for brown rice is formed by suspending a brown rice tank 9 having a bracket 7 fixed thereon so as to be vertically movable so that the bracket abuts on the load cell 8 by means of a horizontal rod 33 on which a load cell 8 is fixed at the upper part. An on-off valve 10 that is opened and closed by an air cylinder 11 is provided at the outlet of the brown rice tank 9.

A brown rice supply tank 12 is provided between the brown rice measuring device M6 and the rice polishing machine 14 provided below it, and the supply section 1 of the rice milling machine 14 is provided with a brown rice supply tank 12.
5, a photosensor 13 is provided in the brown rice supply tank 12 as a brown rice presence state detection device for detecting the presence or absence of brown rice, and a signal from the photosensor 13 operates the air cylinder 11 of the brown rice measuring device @6. On-off valve 10
Open and close.

Reference numerals 16A and 16B refer to a polishing degree adjusting device that changes the resistance force of a resistance lid provided on the rice polishing machine 14, and reference numeral 17 refers to an air cylinder 4 and a brown rice measuring device 16. This is a control device that is electrically connected to the photosensor 13 and the like and controls them.

A milled rice measuring device F20 is provided in the post-process of the rice milling machine 14 via a grain lifting machine 18. The white rice measuring device 20 includes first and second white rice measuring devices 1134, 35, and a first. Discharge ports 19A and 19B on the second white rice measuring machine 34 and 35 respectively
It consists of a supply path 19 which branches and opens, and a switching valve 21 which is provided at a branch point of the supply path 19 and opens one side and leaves the other side idle. 1st. Second white rice measurement 11 [34,
35 is a bracket 23.25 and a load cell 24.26
The load cells 24 and 26 are suspended on the horizontal rod 36 so as to be vertically movable, and the load cells 24 and 26 are electrically connected to the control device 17. Also,
An air cylinder 22 that operates the switching valve 21 and a first. Second
Shutter 28 installed at the outlet of white rice measuring 134.35
．． The air cylinders 27 and 30 that actuate 29 are also part of the control device 1.
Connect to 7. Note that 31 is the first. A storage tank 32 is provided below the second polished rice measuring machine, and its shutter is designated as 32.

Next, the operation of the above embodiment will be described.

First, the tare weight of the brown rice tank 9 is measured by the load cell 8 of the brown rice weighing device 6, and the signal is sent to the control device 17 and stored. Next, input the preset weight value into the control device @17 and store it separately.
The on-off valve 5 of the adjustment tank 3 is opened and brown rice is put into the brown rice measuring device 6.

At this time, the on-off valve 10 of the brown rice tank 9 of the brown rice measuring device 6
Keep it closed. Eventually, when the amount of brown rice in the brown rice tank 9 increases and the set value of the load cell 8 approaches the preset weight value, a signal is sent from the control device 17 to operate the air cylinder 4 and close the on-off valve 5. , stops adding brown rice to the brown rice tank 9, and sends a signal to the control device 17 to end the measurement. At the same time, the measured value of the load cell 8 is sent to the control device 17.

At this time, the photosensor 13 provided in the brown rice supply tank 12 detects that there is no brown rice, and the control device 1
Send a signal to 7. Based on this signal and the signal indicating the end of measurement from the brown rice measuring device 6, the air cylinder 11 installed in the brown rice tank 9 of the brown rice measuring device 6 is operated, the on-off valve 10 is opened, and the brown rice in the measuring device is supplied with brown rice. Supply to tank 12.

When the brown rice has been discharged from the brown rice tank 9, the load cell 8 detects this and operates the air cylinder 11 based on the signal to close the on-off valve 10.

After a gap of 2 to 3 seconds from this point, the on-off valve 5 of the adjustment tank 3 is opened and the brown rice stored in the adjustment tank is put into the brown rice tank 9.

When the photosensor 13 detects the presence of brown rice, the rice is polished
a14 is activated and rice milling starts. The milled rice is sent to a milled rice measuring device 20 via a grain lifting machine 18.

When the photo sensor 13 detects that there is no more brown rice again, it sends a signal to the brown rice measuring device 6 to indicate the end of measurement.
After approval, open/close valve 1 of brown rice tank of brown rice measuring device 6
0 is opened and a signal is sent to supply brown rice to the brown rice supply tank 12.

The detection signal of the presence of brown rice from the photosensor 13 is also transmitted to the white rice measuring device 20, and when the photosensor 13 detects the presence of brown rice, the air cylinder 2 is
2 operates the switching valve 21 to connect the supply path 19 to the empty white rice measuring machine.

In the supply path 19, the switching valve 21 connects to the first white rice measuring machine 3.
When the discharge port 19A that opens on the rice cooker 4 is open, white rice is fed into the first white rice measuring device 34, and the amount of rice fed increases.
At the point when the switching valve 21 is switched by the signal from the sensor 13 as described above, the weight of the white rice is transferred to the load cell 24.
Also, by operating the switching valve 21, the supply path 19 is switched to the second
The second white rice measuring machine 35 is connected to the other discharge port 19B opened on the white rice measuring machine 35, and the white rice is subsequently fed into the second white rice measuring machine 35.

Then, the weight value of the polished rice in the first weighing unit 1134 is sent to the control device 17, and the value is stored. At the same time,
Open and close the discharge port of the first milled rice metering 134 □ Operate the air cylinder 27, open the shutter 28, and discharge the milled rice. 1st. The operation of supplying and discharging to the second polished rice weighing machine 34, 35 is repeated alternately by operating the switching valve 21, and the polished rice sent from the milled rice 114 via the grain lifting machine 18 is continuously weighed.

17. The ratio between the weight value of white rice measured by the measuring device 20 for white rice and the weight value of brown rice measured by the measuring device 6 for brown rice at each interval in which the photosensor 13 is intermittently operated; 17.
It is calculated by an internal calculation device and displayed on a printer, etc. as the rice milling yield.゛Also, the polishing level adjustment device 1 of the rice polishing machine 14
6. A, 16B are electrically connected to the control device 17, and the calculated rice milling yield is compared with the target yield that has been set as a target in advance and input to the control device 17. Depending on the high and low values, the 14 polishing degree adjusting devices 16A and 16.8 of the rice milling machine are controlled to control the rice to be polished to a target yield.

FIG. 2 shows another embodiment of the present invention, in which a bracket 38 is provided on the brown rice supply tank 41 provided between the brown rice needle device 6 and the rice polishing machine 14, and a horizontal rod 4 on which a load cell 39 is fixedly attached.
0, the brown rice supply tank 41 is suspended vertically and movably, and the load cell 39 is electrically connected to the control device @17.

In this embodiment, the load cell 39 acts as a brown rice presence state detection device 37 by detecting the weight of brown rice, and a signal from the load cell 39 is used to detect the brown rice weighing device 6.
Discharge brown rice from. In addition, a time measuring device is installed in the control device, and the instantaneous flow rate is displayed based on the interval at which brown rice is discharged from the brown rice measuring device @6.

In addition, with respect to the operation signal of the brown rice weighing device 6, the weighing signal of the white rice weighing device 20 is output with a delay corresponding to the time required for the rice grain transportation process from the time when the brown rice discharge signal is issued to the milled rice weighing device 20. Thus, if an electric delay circuit is provided in the milled rice measuring device 20, the yield can be measured using the same grain of rice.

Furthermore, if the control device M17 is provided with a memory circuit that integrates the weights of brown rice and white rice weighed multiple times, and an arithmetic circuit that calculates the weight values into an average value, variations in yield in the rice milling machine 14 can be eliminated. This prevents hunting during fineness adjustment.

As the brown rice presence state detection device, a device that detects resistance to the rotation of the impeller by attaching both wheels to a motor, or a capacitance type level meter may be used.

Effects As described above, the present invention does not require a damper or an adjustment tank, and the polished rice directly discharged from the rice milling machine can be continuously measured using a milled rice measuring device. Compared to temporary storage, the measurement can be carried out quickly, smoothly, and accurately, and the polishing level can be adjusted appropriately and automatically based on the measured value, ensuring a preset fine product yield. It is possible.

In addition to measuring the instantaneous yield, if you memorize the cumulative weight of brown rice and white rice at the start of operation, you can print out the total weight and yield rate at the same time as the end of operation. can significantly improve counting management.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of an embodiment of the present invention, and FIG. 2 is a schematic side view of an embodiment of the present invention.
FIG. 3 is a schematic side view of another embodiment of the invention. 1.18... Grain lifting machine, 3... Adjustment tank, 4.11
, 22.27.30...Air cylinder, 5.10...
・Opening/closing valve, 6... Measuring device for polished rice, 7.23.25.
38-...Bracket, 8.24.26.39...Load cell, 9...Brown rice tank, 12.41...Brown rice supply tank, 13...Photo sensor, 14...Rice polishing machine, 16A , 16B... Polishing degree adjustment device, 17...
-Control device, 19... Supply path, 19A, 19B...
Discharge port, 20...Measuring device for polished rice 21...Switching valve,
28, 29, 32... Shea Tsuta, 33.36.40.
... Horizontal rod, 34... First polished rice measuring machine, 35... Second polished rice measuring machine, 37... Brown rice presence state detection device.

Claims (2)

[Claims] (1) A brown rice presence state detection device is installed between a brown rice weighing device and a rice milling machine having a polishing level adjustment device, and a plurality of hoppers are installed in the downstream process of the rice milling machine. A measuring device for white rice is provided, which comprises a weighing machine of the type, a supply path having a plurality of discharge ports communicating with each of the weighing machines, and a switching valve for switching the discharge ports, and the measuring device for brown rice; The brown rice presence state detection device and the polished rice measuring device are electrically connected to each other via a control device having an arithmetic circuit, A rice milling yield control device, characterized in that the milling degree adjusting device is controlled based on measured values of brown rice and polished rice. (2) The brown rice presence state detection device is a 7-tooth sensor 3-
A rice milling yield control device according to claim 1. 3) The rice milling yield control device according to claim 1, wherein the brown rice presence state detection device is a weight detection device. 4) The rice milling yield control device according to claim 1, wherein the brown rice presence state detection device is a capacitance type level meter. 5) The control device has a delay circuit that outputs a measuring signal to the polished rice measuring device after an arbitrary time delay with respect to the operation signal of the brown rice measuring device. The rice milling yield control device according to item 2, item 3, or item 4. 6) A storage circuit in which the control device integrates the measured values of the brown rice measuring device and the polished rice measuring device a plurality of times; The rice milling yield control device according to claim 1, 2, 3, or 4, further comprising an arithmetic circuit for calculating the measured value into an average value.