JPS6338661B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a grain moisture measuring device.
Grain supplied to grain tanks such as grain driers is contaminated with a large amount of water content such as branch kernels, immature grains, straw waste, dust, etc., and contaminants from hybrids that change shape. If the moisture content is measured by directly collecting the grains, the measured moisture value is uncertain, making it impossible to put it into practical use.

For example, Japanese Patent Application Laid-Open No. 54-39267 is known as a method aimed at improving the above-mentioned problems, and this method operates a solenoid to cause paddy to flow from the dryer to the moisture content detection section, thereby detecting the paddy. The rice is removed by a rubber roll for hulling, and the rice is discharged from the hull to the hull discharge port by a fan for blowing off the hulls, and the separated brown rice is crushed between crushing rollers and its electrical resistance value is converted. However, it is not equipped with a device to screen out impurities mixed in the unhulled rice that is fed to the hulling rubber rolls, Even if it is possible to blow away the rice, the amount of rice supplied to the rubber rolls for hulling is unstable, which often causes fluctuations in the flow rate of brown rice supplied between the crushing rollers, making it difficult to constantly measure stable and accurate rice moisture. Moreover, since the brown rice is crushed between the crushing rollers, there is a drawback that the brown rice cannot be reused each time the moisture content of the brown rice is measured.

Therefore, the applicant of the present application has proposed a moisture measuring device in Japanese Patent Application No. 55-25542 to address the above-mentioned defects. A wind selection device that uses a certain amount of wind power is installed, and a sample outlet is opened in the sample container installed in the subsequent process, and a moisture measuring device is attached to the outlet. It is possible to measure the moisture content without removing the unripe grains by blowing away the unripe grains using a wind sorting device, and without removing the paddy. There is no built-in blower built into the wind selection device, and there is no airflow path with directivity to blow away the unripe grains of rice grains as they flow down, so the wind selection device can be made more compact or the wind selection effect can be improved. It was necessary to devise ways to further improve this.

The present invention is an improvement made in view of the above problems, and includes a grain conveying gutter and a grain container for moisture measurement installed inside the machine frame, and a moisture sensor attached to the grain conveying gutter and the inner wall surface. In the moisture measuring device in which a sorting air passage is formed in a space between the grain container and the grain container, the air outlet is formed as a directional air outlet in the air passage that is integrally and directly connected to the blower, and communicates with the sorting air passage. A ventilation window is opened in the machine frame facing the machine frame, and the blower and the sorting air path form a wind selection device, and the blower is installed inside the machine frame. By using the directional blowing action of the blower, the wind sorting device is effectively installed in the frame of the machine to effectively remove contaminants from hybrid rice grains that undergo catabolic transformation that are mixed into the rice grains flowing down from the rice grains into the sorting air channel. The purpose of this invention is to provide a moisture measuring device that can improve sorting accuracy and rationally simplify the machine frame configuration.

The present invention will be explained with reference to embodiment figures. In Fig. 1, a machine frame 1 is provided with a grain feeding port 2 on one side of the upper part and a grain discharging port 3 on the lower part, and a vibration device is mounted on the mounting fixing plate 4 on one side of the upper part of the machine frame 1. A sorting air passage 9 is formed in the space between the lower grain discharge gutter of the fixed plate 4 and the grain container 11 for moisture measurement, and the lower part of the fixed plate 4 has a grain conveying gutter 6 equipped with A wind selection device is formed by forming a blower 14 which integrally connects the air passages 7 provided in the air passage 7, and an air exhaust window 8 in the machine frame 1 facing the air outlet 13 having directivity in the air passage 7. The wind selection device is compactly installed inside the machine frame 1. A mountain-shaped grain distribution plate 10 is installed in the lower gutter end sorting air passage 9 of the grain conveyance trough 6, and the front wall surface 10 of the grain distribution plate 10 is installed.
A grain container 11 for moisture measurement is mounted below A, and an immature grain discharge channel 1 is mounted below the rear wall surface 10B.
2 is provided. The grain container 11 for moisture measurement is provided with a discharge valve 15 at the bottom, and a sensor 16 is attached to the inner wall surface of the grain container 11, and the grain container 11 is connected to a weighing device 17 provided at the bottom of the fixed plate 4 and suspended. The weighing device 17 has a fixed frame 18 with a hanging rod portion projected upward and a movable frame 19 with a horizontal rod portion projected laterally, which are arranged side by side, and each frame 18, 19 is connected by a connecting rod 20... A movable frame 19 is formed to be vertically movable, and the hanging rod portion and horizontal rod portion of each frame 18, 19 are connected by a spring scale 23 equipped with a spring 21, a weighing detection portion 22, etc., and a grain container is formed. The discharge valve 15 is connected to an opening/closing device (not shown) to open and close.

The grain distribution plate 24 shown in FIG. 2 has a sloping cross section and is loaded onto the downstream part of the end of the grain conveying gutter 6.
The lower end of the grain distribution plate 24 is connected to the grain container 11A for moisture measurement, and the upper end thereof is connected to the immature grain discharge path 12.
They have been arranged for each of them by contacting them. The grain distribution plate 24A shown in FIG. 3 is mounted in a tilted manner on the exhaust window 8 of the sorting air passage 9, and a grain container 11A for moisture measurement is suspended from the lower end of the grain distribution plate. There is.

The machine frame 1 is a grain tank 2 such as a grain dryer.
5, the grain outlet 26 opened in the wall of the grain tank 25 and the grain feeding port 2 at the top of the machine frame 1 are connected by a grain flow path 27, and the sample grains in the grain tank 25 are The grains are formed so as to flow down and be supplied to the grain conveying gutter 6, 28 is a display for displaying the measured moisture value, 29 is an air supply port of the blower 14, and 30 is an electric motor directly connected to the blower 14.

Since it has the above-mentioned configuration, from the grain tank 25 to the grain flow path 2
Sample (paddy) flowing down to grain conveying gutter 6 via 7
flows down from the gutter end of the grain conveying gutter 6 to the grain container 11 for moisture measurement due to the vibration action of the vibrating device. The air outside the machine is supplied by the air supply port 29.
A stable wind with directivity is blown out from the air outlet 13 in the direction of the grain distribution plate 10 through the air passage 7, and at least immature grains are blown away from the gutter end of the grain conveying gutter 6. The wind-selected grained paddy is passed through a mountain-shaped grain distribution plate 10.
The grains fall onto the front wall surface 10A of the grain distribution board 10, slide down the board surface, and flow down into the grain container 11 for moisture measurement. Dust, straw, etc. are discharged to the outside of the machine through the ventilation window 8. Therefore, in the grain container 11 for moisture measurement, only carefully selected grained rice is accumulated to form a grain layer, and the moisture value of the grain is measured by the sensor 16, and the moisture value of the grain is measured by the sensor 16. A predetermined amount of grain weight is detected by the weighing detection unit 22 of the spring scale 23, the measured moisture value is corrected according to the weight change, and the moisture correction value is displayed on the display 8.
It displays the accurate actual moisture value.

In the embodiment (part 2) shown in FIG. 2, since the grain distribution trough is provided with an inclined grain distribution plate 24 at the bottom of the gutter end flow, the sized paddy grains do not fall onto the grain distribution plate 24. Grain container 11A for moisture measurement by sliding down the inclined surface of the lever.
In addition, immature and branched grains flow down into the immature grain discharge path 12, and only the grained paddy supplied to the grain container 11A can be measured and its actual moisture value can be displayed.
Further, since the electric motor 30 is directly connected to the blower 14, each device can be arranged within the machine frame 1 in a rational manner. In the embodiment (part 3) of FIG. 3, the exhaust window 8
Since the grain distribution plate 24A is installed in a tilted shape, impurities such as immature grains, branch grains, straw waste, dust, etc. can be blown out by simply rotating the blower 14 and increasing its wind power a little. The grained paddy is discharged outside the machine through the window 8, and only the grain-sized paddy falls onto the inclined surface of the grain distribution plate 24A, slides down the plate surface, and is supplied to the grain container 11A for moisture measurement, so that the moisture content is removed. It can display accurate real moisture values as well as measurements.

As explained above, in the present invention, the contaminants of hybrids that undergo catabolic metamorphosis mixed into grains are removed during the downstream process in which they flow from the gutter end of the grain conveying gutter to the sorting air path.
Air is blown from the directional air outlet formed in the air passage communicating with the blower toward the air exhaust window opened in the machine frame, and a jet of stable wind with enough force to at least blow away immature grains is produced. It is possible to reliably carry out subtle wind separation of various impurities mixed in the grain, greatly improving grain measurement accuracy, and configuring the wind selection device within the machine frame in a rational and extremely simple structure. It is effective.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a side sectional view of the present device, FIG. 2 is a side sectional view of a main part of another embodiment (Part 2), and FIG. 3 is a side sectional view of a main part of another embodiment (Part 3). 1... Machine frame, 2... Grain feeding port, 3... Grain discharging port, 4
...Fixing plate, 5... Vibration device, 6... Grain transport gutter, 7... Air duct, 8... Ventilation window, 9... Sorting air duct, 10... Grain distribution gutter, 10A... front wall,
10B... Rear wall surface, 11, 11A... Grain container, 12... Immature grain discharge path, 13... Ventilation port,
14... Blower, 15... Discharge valve, 16... Sensor, 17... Weighing device, 18... Fixed frame, 19
...Moving frame, 20...Running rod, 21...Spring, 22
... Weighing detection section, 23 ... Spring balance, 24, 24A
... Grain distribution plate, 25 ... Grain tank, 26 ... Grain outlet, 27 ... Grain flow path, 28 ... Display device, 29 ...
...Air supply port, 30...Electric motor.

Claims (1)

[Scope of Claims] 1. A grain conveying gutter and a grain container for moisture measurement are installed inside the machine frame, and in a space between the grain conveying gutter and the grain container having a moisture sensor attached to the inner wall surface. In a moisture measuring device having a sorting air passage, a directional air outlet is formed in the air passage integrally connected to a blower, and an air outlet is disposed in the machine frame facing the air outlet communicating with the sorting air passage. A wind window is opened and formed in the wind selection device by the blower and the screening air passage,
A wind selection device for a moisture measuring instrument, characterized in that the blower is installed inside the machine frame. 2. The air selection device for a moisture measuring instrument according to claim 1, wherein an electric motor is directly connected to the blower.