JPH0120993Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automatic control device in a rice hulling device.

(Prior Art) The conventionally known Japanese Utility Model Application Publication No. 54-39359 discloses a structure in which a hulling device and a drying device are housed in one enclosure frame (such as a shed).

(The problem that the invention aims to solve) However, since current drying equipment generally applies hot air to the grains to dry them, the temperature of the grains immediately after drying is extremely high at 30°C to 40°C. . Therefore, even if the hulling equipment and drying equipment are installed in the same wall frame and the room temperature is raised to 18°C (although it is difficult to raise the room temperature in the factory to 18°C), there is still a difference between grain temperature and grain temperature. 30℃−18℃=12℃ or 40℃
A temperature difference of -18°C = 22°C occurs. If the hulling operation is carried out in this condition, a considerable proportion of the rice will be grainy. When brown rice with rough skin occurs, it not only gives rise to poor appearance but also causes various problems such as poor storage performance.

To suppress the occurrence of brown rice with rough skin as described above,
It is a good idea to lower the grain temperature to as close to the outside temperature as possible before doing so, but people who do not have this knowledge, or due to operational errors, may end up putting grain into the hulling device whose grain temperature has not been sufficiently lowered. , causing grainy rice. Particularly serious damage is caused to dry hulling facilities that handle large amounts of grain.

The present invention is characterized in that it prevents the above-mentioned mistakes and allows even those without knowledge to easily remove the hulls with less brown rice.

Ideally, the set temperature difference is 0℃ (the outside temperature and grain temperature are the same), but since it takes a considerable amount of time for the grain temperature after drying to become equal to the outside temperature, empirically, a difference of around 5℃ is recommended. It doesn't seem to matter.

(Means for solving the problem) Therefore, the present invention provides a grain temperature sensor, an outside temperature sensor, and an indicator light in the hulling device, and when the difference between the grain temperature and the outside temperature is less than the set temperature difference, the hulling device is ready for hulling. Automatically in a hulling device that displays a message indicating that hulling is not possible and stops the hulling operation when the difference between the grain temperature and the outside temperature exceeds a set temperature difference. This is a control device.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a supply elevator, and a bucket conveyor 2 is mounted inside thereof. 3 is a tensioning hopper attached to the lower part of the supply elevator 1, and a tensioning shutter 4 is attached to the tensioning hopper 3. 5 is a rack formed on the tensioning shutter 4, and a pinion 8 attached to the shaft 7 of the motor 6 is meshed with the rack 5. The motor 6 is operated by an upper limit level switch 17 and a lower limit level switch 18, which will be described later. Inside the hopper 3 is a grain temperature sensor 3 that measures the grain temperature of unhulled rice.
5 and an outside temperature sensor 26 are provided. A supply tank 9 is provided at the upper part of the supply elevator 1. 10 is an overflow pipe. A roll upper shutter 12 is attached to the drop port 11 at the lower end of the supply tank 9. 13 is a rack formed on the lower surface of the roll upper shutter 12, and a pinion 16 attached to the shaft 15 of the motor 14 is engaged with the rack 13. 17 is an upper limit level switch provided in the supply tank 9, 18 is a lower limit level switch, 36 is a grain temperature sensor provided in the supply tank 9, 27 is an outside temperature sensor provided outside the supply tank 9, The grain temperature sensor 35 or the grain temperature sensor 3
6 and either the outside air temperature sensor 26 or the outside air temperature sensor 27 are connected to the motor 6 or the motor 14 or the motor 23 described later.

The upper limit level switch 17 and the lower limit level switch 18 are connected to the motor 6 and the motor 14.
When the unhulled rice falls below the lower limit level switch 18, the motor 6 is energized and the pinion 8 is
When a large amount of unhulled rice is supplied and the upper limit level switch 17 is reached, the motor 6 is energized to rotate the pinion 8 to close the staking shutter 4, and the motor 14 is energized to close the staking shutter 4. 16 to open the roll upper shutter 12.

19 is a paddy sensing switch provided at the drop port 11;
0 is a feed roll, 21 is a main roll, and 22 is an auxiliary roll.The auxiliary roll 22 is moved toward and away from the main roll 21 by a motor 23.

In addition, 28 is an indicator light indicating that the difference between grain temperature and outside temperature is below the set temperature difference, 29 is an indicator light indicating that the difference between grain temperature and outside temperature is more than the set temperature difference, 24 is a paddy sensing plate, 25
is the rice hulling section.

(effect) Next, we will discuss the effect.

To explain this with reference to the flowchart in FIG. 2, the supply tank 9 is empty before the operation, and therefore the lower limit level switch 18 is not sensing paddy, so as soon as the switch is turned on, The motor 6 is energized, the pinion 8 is rotated counterclockwise, the tensioning shutter 4 is opened, and the rice in the tensioning hopper 3 is allowed to flow into the elevator 1.

At this time, the grain temperature of the unhulled rice in the hopper 3 is measured by the grain temperature sensor 35, and the outside temperature is measured by the outside temperature sensor 26. If the temperature difference is above a certain level, the unhulled rice is Since rubbing will cause skin displacement, the answer is NO, so release the auxiliary roll 22, close the tensioning shutter 4 to prevent the unhulled rice from flowing into the supply elevator 1, and also close the supply tank 9.
The roll upper shutter 12 is closed so that the unhulled rice already contained therein is not supplied to the hulling section 25. And even if something were to be fed between the main roll 21 and the sub roll 22, it would pass through.
The secondary roll 22 is separated.

When the temperature difference between the outside air temperature sensor 26 and the grain temperature sensor 35 is below the set value, the answer is YES, so the loading shutter 4 is opened, the unhulled rice flows into the feeding elevator 1, and the paddy rice is lifted by the bucket conveyor 2. The grain is harvested and stored in the supply tank 9.

When the paddy stored in the supply tank 9 reaches the upper limit level switch 17, and when the grain temperature measured by the grain temperature sensor 36 and the outside temperature measured by the outside temperature sensor 27 are below a certain level,
To prevent skin displacement, the motor 14 is energized to rotate the pinion 16 clockwise, the roll upper shutter 12 is opened, the roll falls from the drop opening 11 and is supplied to the main roll 21 and the sub roll 22 by the feeding roll 20. At the same time, the motor 23 is energized to automatically bring the auxiliary roll 22 close to the main roll 21 to remove the hulls.
At the same time, the unhulled rice in the supply tank 9 has reached the upper limit level switch 17, and the excess is returned to the hopper 3 through the overflow pipe 10, but the motor 6 is energized to prevent it from being supplied into the supply tank 9 any further. Then, the pinion 8 is rotated clockwise to close the tensioning shutter 4. Therefore, the amount of unhulled rice in the supply tank 9 gradually decreases, and when it reaches the lower limit level switch 18, the above process is repeated.

(Effects) As described above, the present invention is equipped with a grain temperature sensor, an outside temperature sensor, and an indicator light in the hulling device, and when the difference between grain temperature and outside temperature is less than the set temperature difference, an indication indicating that hulling is possible is displayed. At the same time, the rice hulling work was carried out.
This is an automatic control device in a hulling device that displays a message indicating that hulling is not possible and stops the hulling operation when the difference between the grain temperature and the outside temperature exceeds the set temperature difference. It has an effective effect on the hulled rice.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal side view, and FIG. 2 is a flowchart. Explanation of symbols, 1... Supply elevator, 2... Bucket conveyor, 3... Lagging hopper, 4... Lagging shutter, 5... Rack, 6... Motor, 7
...Shaft, 8...Pinion, 9...Storage tank, 1
0...Overflow pipe, 11...Drop opening,
12... Roll upper shutter, 13... Rack, 14... Motor, 15... Shaft, 16... Pinion, 17... Upper limit level switch, 18...
Lower limit level switch, 19...Paddy sensing switch,
20... Loading roll, 21... Main roll, 22...
...auxiliary roll, 23 ... motor, 24 ... paddy sensing plate, 25 ... hulling section, 26 ... outside temperature sensor,
27... Outside temperature sensor, 28, 29... Display unit.

Claims (1)

[Scope of utility model registration request] The hulling device is equipped with a grain temperature sensor, an outside temperature sensor, and an indicator light, and when the difference between grain temperature and outside temperature is less than the set temperature difference, a message indicating that hulling is possible is displayed and the hulling operation is performed. An automatic control device for a rice hulling device that displays a message indicating that hulling is not possible and stops the hulling operation when the difference between the temperature and the outside temperature exceeds a set temperature difference.