JPS6339291B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for opening and closing a passage from a tank to a grain milling room in a grain milling device, especially a rice milling device for sake brewing.
This invention relates to improvement of a grain feeding adjustment valve that adjusts the amount of rice supplied to a rice milling machine.

Generally speaking, rice for sake brewing has an average polishing degree of 70.
%, and even reaches 50% for high-refined products. Therefore, during rice milling, bran gradually adheres to the rice, and even if it is removed by a bran removal device, the flow of the rice becomes poor and the load on the rice milling machine increases.
That is, the load current of the rice milling machine motor increases. On the other hand, the load current may temporarily decrease.

Conventionally, to adjust the load current of the rice milling machine motor to an appropriate setting value, the grain feeding adjustment valve had to be opened and closed manually, but this required constant monitoring, which sometimes delayed appropriate operation. Furthermore, if the rice milling equipment stops due to an unexpected power outage during operation, or if the rice milling machine motor, elevator, etc. suddenly stop,
Since the grain feeding adjustment valve remains open, rice flows from the tank into the rice milling room, causing a rice blockage that requires a great deal of effort to clear.

In the event of a power outage, etc., to prevent rice from clogging, immediately
It is necessary to completely close the passageway, but it is often not possible to do so manually.

Therefore, this invention provides a driving motor for the grain feeding adjustment valve, and also includes a control section that controls this motor during operation to automatically adjust the opening degree of the grain feeding adjustment valve, and a control section that controls the opening of the grain feeding adjustment valve when the grain feeding adjustment valve is stopped. A battery is installed in order to completely close the passage by driving the motor in response to a signal.This automatically adjusts the load fluctuation of the rice mill to the set value, and in the event of a power outage, etc.
The purpose is to completely close the passageway automatically and promptly.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

First, in FIG. 3, the rice milling equipment will be briefly described. 1 is a rice milling machine, 2 is an elevator, 3 is a tank, 4 is a rice milling machine, and 5 is a bran removal device.

Next, the grain feeding regulating valve device will be explained with reference to FIG.

Reference numeral 6 denotes a grain feeding adjustment valve, which has a cap 7 and opens and closes a passage 8 between the tank 3 and the rice milling chamber 4' of the rice milling machine 4. Reference numeral 9 denotes a feed shaft, the upper end of which is fixed to the grain feeding adjustment valve 6, and has a female thread in the center.
A support cylinder 10 supports the feed shaft 9 so as to be slidable in the vertical direction. 11 is a guide groove.

M is a DC motor, which is fixed to the outer wall of the upper end of the rice milling machine 4. 12 is a worm fixed to the DC motor M shaft, and 13 is a wheel that meshes with the worm 12. Reference numeral 14 denotes a wheel shaft, which is horizontally rotatably supported by the outer wall of the rice miller 4 and the support tube 10, and a bevel gear 15 is fixed to the shaft end inside the support tube. 15' is a bevel gear that meshes with the bevel gear 15, and is rotatably supported at the bottom of the support tube 10.

16 is a feed screw, the lower end of which is connected to a bevel gear 15'
and is screwed into the female thread of the feed shaft 9.

Therefore, the rotation of the DC motor M is caused by one set of worm 12 and wheel 13, and one set of bevel gear 1.
5, 15' to the feed screw 16,
As the feed screw 16 rotates, the grain feeding adjustment valve 6 moves up and down to open and close the passage 8.

Although not shown, a manual handle shaft is fixed to the worm 12, and the handle shaft is equipped with an opening degree detector that detects and displays the rotation of the DC motor M, that is, the opening degree of the grain feeding adjustment valve. is installed.
In addition, the opening detector has a fully open side and a fully closed side.
A limit switch whose position is adjustable is provided to prevent the passage from being opened or closed beyond a set opening degree.

As shown in FIG. 2, commands to open and close the grain supply regulating valve 6 are issued by a control section, and the passage is completely closed during a power outage using a battery as a power source.

That is, the control section and the DC motor M, and the battery and the control section are connected, and during the operation of the rice milling device, an AC power source, for example, a motor for driving the continuously variable transmission of the rice milling machine, is connected.
It is rectified from the AC power source of M' and sent to the DC motor M via the control section. The control unit is the motor of rice milling machine 4.
Changes in the load current of M'' are automatically adjusted and the DC motor M is driven by a signal so that the set load current is reached, and the grain feeding regulating valve 6 is opened and closed.

In the event of a power outage, etc., a signal from the control unit drives the DC motor using the battery as a power source, completely closing the passage.

Instead of the above embodiment, the following configuration is also possible.

That is, the DC motor M is replaced with an AC motor, and during the operation of the rice mill, for example, the AC power source of the continuously variable transmission driving motor M' of the rice mill is used as described above. In the event of a power outage, etc., the direct current from the battery is converted to alternating current by a converter, and the grain feeding regulating valve 6 is closed.

In addition, if the processing unit (central processing unit) calculates the milling time (using an opening detector), the rotation speed of the rice milling machine motor M'' (using a rotation detector), and the load current, the control can be performed. Depending on the part, the rotation speed, load current, rotation speed, load current, change time, change rotation speed, change load current, and stop time can be set, and it is possible to automate the entire rice milling process.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main part of the grain feeding adjustment valve device, Figure 2
The figure is a block diagram of the grain feeding regulating valve device, and FIG. 3 is a schematic front view of the rice milling device. 3...Tank, 4...Rice polishing machine, 4'...Rice milling room,
6... Grain feeding adjustment valve, 8... Passage, M... DC motor.

Claims (1)

[Claims] 1 A motor for driving the grain feeding adjustment valve is installed in the grain feeding adjustment valve that opens and closes the passage from the tank of the grain milling device to the grain processing room, and during operation, the motor is controlled to adjust the opening degree of the grain feeding adjustment valve. a control unit that automatically adjusts the
When there is a power outage during operation or when at least a part of the grain milling equipment stops, the passage can be completely closed by a signal from the control unit.
A grain feeding regulating valve device in a grain milling device comprising a battery connected to a motor.