JPS6314774B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in grain moisture measuring devices.

Conventionally, the circumferences of a pair of metal rolls are rotated in opposite directions to continuously feed sample grains onto the biting surface between the two rolls, and multiple grains are crushed or compressed at the same time to generate electricity in the grains. Since the resistance value is measured, the number of compressed grains in the sample may vary indefinitely, or foreign substances may be mixed in the sample grains, resulting in variations in measurement accuracy. There was an unexpected defect in the measurement of moisture content.

Further, an electromagnetic valve body is provided in an opening provided on the side plate of the dryer so that it can be opened and closed by a solenoid, and the opening is connected to a moisture content detection section via a communication gutter, and a pair of JP-A-Sho's configuration includes a rubber roll for hulling, a fan for blowing off the rice hulls, a hull discharge port, and a crushing roller for crushing the fallen rice grains.
This is known as Publication No. 51-39267.
The solenoid is activated to flow out the paddy from the dryer to the moisture content detection part, the paddy is removed by a rubber roll for hulling, and the paddy hulls are discharged from the removed material to the chaff discharge port by a fan for blowing off the paddy hulls. At the same time, the sorted and separated brown rice is crushed between crushing rollers, and the electrical resistance value is converted to detect the moisture content. Because there is no wind sorting device or device to regulate and feed paddy grain by grain, the flow rate of brown rice flowing down to the crushing rolls often fluctuates, making it difficult to maintain stable and accurate moisture content at all times. Since it was not possible to perform measurements, there was a need for a more reliable grain moisture measuring device.

The present invention is an improvement made in view of the above-mentioned problems, and includes a moisture measuring device disposed in the rear stroke of a grain conveying gutter equipped with a vibration device, and an intermediate stroke between the grain conveying gutter and the moisture measuring device. With a configuration that includes a wind sorting device and a grain streaming device, grains flowing on the grain conveying gutter surface are stably flowed down from the gutter end due to the vibration action of the vibrating device, and contaminants mixed into the flowing grains are removed. The grains are sorted and removed by a wind sorting device, and the selected grains are flowed down.In the grain-flowing device, grains are regulated one by one and a fixed amount is continuously or By intermittent feeding, both metal rolls measure the moisture content of each grain, completely eliminating the causes of errors in moisture measurement by moisture measuring instruments, and allowing highly accurate moisture measurements to be carried out. The purpose is to provide a measuring device.

An embodiment of the invention will be described with reference to FIGS. 1 and 3. FIG. Grain feeding port 2 on one side of the top and grain discharging port 3 on the bottom
and are formed in the box-shaped machine frame 1, and the machine frame 1
A fixing plate 4 is mounted on one side of the inner upper part, and a fixing plate 5 is mounted on the other side of the interrupted part. A vibration device 7 is installed on the fixed plate 4.
A grain conveying gutter 8 equipped with
A grain flow device 11 consisting of a vibrator 10 and a grain flow device 10 is placed thereon, and a granulation flow path 13 formed integrally with a branched flow grain plate 12 installed below the gutter end of the grain conveying gutter 8 is installed in the grain flow device. 11, and an immature grain channel 14 provided on one side of the machine frame 1 is connected to the grain discharging port 3.

The space of the air supply window 15 opened on the side of the vibrating device 7 and the air suction window 16 opened in the front, and the space formed by the grain flow path between the grain conveying gutter and the branched flow grain plate 12, respectively. A grain threshing machine 18 equipped with a cyclone collector 17 is connected through an air suction passage 19 to form a wind sorting device. A pair of metal rolls 20 and 21 are mounted opposite each other at the lower part of the grain feeding device 11, and both metal rolls 20 and 21 form a roll biting surface A.
is formed into a moisture measuring device with a display meter 22 that detects and displays the electrical resistance value of grain, and the machine frame 1 is attached to the wall of a grain tank 23 such as a grain dryer B, and A sample take-out port 24 opened at 23 and a grain feeding port 2 communicating with the grain conveying trough 8 are connected by a grain feeding path 25.

The operation of the above configuration will be explained below.

The grains flowing out from the sample extraction port 24 of the grain tank 23 flow into the grain conveying gutter 8, and are stably flowed on the surface of the grain conveying gutter 8 toward the gutter end by the vibration action of the vibration device 7. Grain falls onto the flow board 12 from each slot of the grain sorting groove 6 provided at the end of the grain conveying gutter 8, and foreign contaminants fall from the end of the grain sorting groove 6 onto the grain flow board. It flows down to the outer surface of 12. During this time, the air outside the machine is drawn from the air supply window 15 to the air intake window 1 by the suction action of the exhaust fan.
6 and falling from the upper grain conveying gutter 8 are air-sorted, and the wind-sorted selected grains are passed from the inner surface of the flow grain plate 12 through the grain-sizing channel 13 to vibratory grain feeding. Branch stalk grains and immature grains that have flowed down into the gutter 11 and have been subjected to wind selection are discharged together with impurities through the immature grain channel 14 to the lower grain discharging port 3, and straw, dust, etc. are collected through the ventilation window. 16 and is removed to the cyclone collector 17 via the exhaust fan 18. Then, the selected grains flow down to the grain flow device 11 via the branched flow grain plate 12 and the rectification channel 13, and in the grain flow device 11, the selected grains are separated by the vibration action of the vibration device 10 and the single grain conveyance path. 9, the selected grains are regulated grain by grain and flowed down onto the biting surface A between the two metal rolls 20, 21 of the moisture meter. 21, the grains are compressed or crushed one by one to measure the electric resistance detected value of the grain, and the detected value is sent to the display motor 22.
will be displayed.

What is shown in FIG. 2 is another embodiment of the grain streaming device. A rotary cylindrical body 28 is rotatably mounted on the lower end of the inner wall surface of the grain flow plate 12, and a plurality of pot holes are provided on the circumferential surface of the rotary cylindrical body 28 to regulate grains one by one. It is formed into a grain streaming device that feeds the metal rolls 20, 21, and the air intake window 16 of the wind sorting device is connected to a grain dryer (not shown) by an air intake path 26.

In this embodiment, the grains flowing down from the flow grain plate 12 are fitted into the pot holes of the rotating cylindrical body 28, and the grains are regulated one by one and are intermittently passed between the two metal rolls 2.
Since the water is supplied between 0 and 21, it is possible to accurately measure the moisture content without causing unevenness in the detected electrical resistance value of the grain. It should be noted that other than the structure and operation in which the grain feeding device and the air suction window 16 are connected to the exhaust fan of the grain dryer B via the air suction passage 26, the structure and operation thereof are the same as those of the previous embodiment, and the details thereof will be omitted.

As explained above, according to the present invention, impurities mixed in the grains stably flowing down from the gutter end of the grain conveying gutter are sorted and removed by the wind sorting action of the wind sorting device, In the grain flow device that flows the selected grains, each grain is regulated and fed continuously or intermittently between the two metal rolls of the moisture meter, so the electrical resistance of each grain can be detected. This has the effect that the value can be measured accurately and highly accurate moisture measurement can be carried out.

[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 another embodiment, and FIG. 3 is a perspective view showing the main parts of FIG. 1. 1...Box-shaped machine frame, 2...Grain feeding port, 3...Grain discharging port, 4,
5... Fixed plate, 6... Groove for grain sorting, 7... Vibration device,
8... Grain conveyance gutter, 9... Single grain conveyance path, 10... Vibration device, 11... Grain flow device, 12... Grain flow plate, 13... Grain regulation channel, 14... Immature flow channel, 15... Feeding wind window,
1...Air intake window, 17...Cyclone collector, 18
...Exhaust fan, 19...Air suction path, 20, 21...Metal roll, 22...Display meter, 23...Grain tank, 24...
Sample extraction port, 25... Grain feeding path, 26... Air suction path, 27
...pot hole, 28...rotating cylindrical body, A...roll biting surface,
B...Grain dryer.

Claims (1)

[Scope of Claims] 1. A moisture measuring device is formed by providing a pair of metal rolls that can be freely rotated in opposition to measure the electrical resistance value of grains,
The moisture measuring device is disposed in a downstream stage of a grain conveying gutter equipped with a vibration device, and a wind system is installed to screen out and remove impurities mixed into the grains in an intermediate path between the grain conveying gutter and the moisture measuring device. A grain moisture measuring device characterized by being provided with a sorting device and a grain flow device that regulates selected grains one by one and feeds the selected grains between the two metal rolls. 2. The grain moisture measuring device according to claim 1, wherein the grain streaming device is formed by a single grain conveying gutter with a narrow end portion made of a vibrating device. 3. The grain moisture measuring device according to claim 1, wherein the grain streaming device is formed into a rotating cylindrical body with a plurality of pot holes provided on the circumferential surface of the cylinder.