JPH04138347A - Grain moving device of grain-moisture measuring apparatus - Google Patents

Abstract

PURPOSE:To achieve an accurate judgement of aligned grains and to make it possible to perform accurate measurement by providing a plurality of feeding rolls having the different widths and depthsof the outer spiral grooves, selecting the rolls in correspondence with the kind of the grain, and feeding the grains. CONSTITUTION:When each part of a grain-moisture measuring apparatus 6 is started, a feeding roll 3 is selected and set based on the kind of a grain in drying. The parts of the grains which are circulated and dried in a dryer are supplied. Every one grain is fed and fit into a spiral groove 1 of the feeding roll 3. The grain is guided with a guiding plate 2 and fed and moved. The grain is dropped at the edge part. The grain is compressed into the narrow shape and crushed with a pair of detecting rolls 4. The moisture in the powder grain is detected. The average moisture value of several tens of the grains is made to be the detected grain moisture for one time. When the moisture reaches the finished target moisture value, the drying is stopped. The immature grain having the small diameter is dropped from the spiral groove 1 during the movement in the detecting step and returned and supplied in the dryer from the measuring apparatus 6. Thus, the accurate moisture can be measured only for the aligned grains.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a grain transfer device for a grain moisture meter, and the grain moisture meter can be used in a grain dryer or the like.

(Prior Art) Conventionally, grains are fitted into a spiral groove of a certain width and depth using one type of transfer roll, and are guided by a guide plate along the spiral groove of the transfer roll. The grains are transported while falling from the end and supplied onto a pair of detection rolls, and are fed between the detection rolls and crushed under pressure, and at the same time, the water content of the crushed grains is detected. The transfer roll is of one type, and the size and depth of the spiral groove are constant, and the grain transfer device of the grain moisture measuring instrument does not have a plurality of transfer rolls with different sizes and depths of the spiral groove. Met.

(Problem to be Solved by the Invention) For example, in a grain moisture measuring device used in a grain dryer, when the grain is being dried in the dryer, the moisture measuring device is controlled by transmitting an electrical measurement signal. When each part starts, some of the grains being dried are stored in the dryer and are being dried while repeating the circulation, and are supplied from the dryer to the moisture measuring device, and the grains are transferred to the spiral groove of the transfer roll. - The grains are fitted together one by one and transported along the spiral groove of the transfer roll while being guided by a guide plate, falling from the end and being supplied one by one onto the pair of detection ports, At the same time that the crushed grains are crushed between the outer circumferential surfaces of the detection rolls, the moisture content of the crushed grains is detected, and the moisture content of each grain of 32 grains is detected in this transmission signal, and the 32 grains are detected. The average moisture value is calculated, and the average moisture value of the 32 grains obtained by this calculation becomes one detected grain moisture, and when this detected grain moisture reaches the finishing target moisture,
The dryer is automatically controlled to stop drying the grains.

Generally, small grain size is paddy and bare wheat, and large grain size is
These are wheat, beer wheat, and barley, and the width and depth of the spiral groove of the transfer roll has been set based on the small grain size of paddy grains, so the grain size is large. In such cases, even the immature grains of wheat are transferred and supplied onto the detection rolls along the spiral grooves, crushed under pressure by the detection rolls, and the moisture content of the immature grains of the wheat is detected. Therefore, the average moisture content of wheat is calculated from both the detected immature grain moisture value of wheat and the detected grain moisture of wheat, but since immature grain has a higher moisture content than grain grain, immature grain When wheat grains have a large amount of contamination, a high average moisture value is detected, which can lead to overdrying during grading and reduce the quality of the wheat. The purpose is to accurately detect grain size moisture by ensuring grain determination.

(Means for Solving the Problems) The present invention provides a width of an outer helical groove 1 in which grains are fed and transferred by rotation so that they fit into a helical groove 1 on the circumferential surface and are guided by a guide plate 2 extending in the direction of the rotation axis. , and a plurality of rotatable transfer rolls 3 having different depths, and receive the grains supplied from the transfer rolls 3 and the guide plate 2 and crush the crushed grains with pressure. In a grain moisture meter equipped with a pair of detection rolls 4 for detecting moisture, the transfer roll 1 is selected based on the type of grain to be detected for moisture, and the grain is transferred. The configuration of the device.

(Operation of the Invention) When drying grains in a grain dryer, each part of the grain moisture meter installed in the dryer is started by transmitting an electrical measurement signal, and at the same time the transfer roll 3 is dried. A part of the grains are selected and set according to the type of grains to be used, and are stored in the dryer and are being dried while being repeatedly circulated. The grains are fitted into the spiral groove 1 one by one, guided by the guide plate 2 along the spiral groove 1 of the transfer roll 3, then fed out and transferred, falling from the end and forming a pair. The grains are fed one by one onto the detection roll 4 of
The moisture content of the powdered grains is detected.For example, the moisture content of 32 grains of each grain is detected in this transmission signal, and the average value of the detected moisture content of these 32 grains is is calculated, and the average moisture value of the 32 grains obtained by this calculation becomes the detected grain moisture once. When this detected grain moisture reaches the finishing target moisture, the dryer is automatically stopped and the grain is removed. Drying is stopped.

Moreover, immature grains having a small particle size fall from the spiral groove 1 while being transported along the spiral groove 1, and are fed back from the moisture meter into the dryer.

(Effect of the invention) According to the present invention, a transfer roll 3 provided with a spiral groove 1 having a different width and depth for transferring the grain after the grain of the grain moisture measuring device can be selected depending on the type of grain to be dried. The transfer roll 3 is set to be the most suitable for the type of grain.
Therefore, immature grains with a small particle size fall while being transferred by the transfer roll 3 and are transferred to the detection roll 4.
.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

Rotation indicates a state in which the grain moisture measuring device 6 is attached to the grain dryer 5.

The dryer 5 has a rectangular shape that is long in the front and back direction, and is provided with a transfer gutter 8 and a ceiling plate 9 in which a transfer spiral is rotatably installed on the second part of the machine wall 7''. A storage chamber 10 for storing grains is formed, and a supply port for supplying grains to be transferred into the storage chamber IO is provided at the center of the transfer@8 bottom plate in the front-rear direction, and a supply port is provided below the supply port. The grains are stored in the storage chamber 10.
The structure includes a rotatable diffusion plate 11 that uniformly diffuses and supplies the liquid to the inside.

On the lower side of the storage chamber 10, there are exhaust chambers 12 on both left and right sides.
12 and the ventilation chamber 13 in the center are the left and right drying chambers 14.
．． 14, and this drying chamber 14.14
At the bottom is a feeding valve 15.15 that feeds out the grains and lets them flow down.
The drying chambers 14 and 14 are rotatably supported by a shaft, and a grain collection gutter 16 rotatably equipped with a transfer spiral is provided below the drying chambers 14 and 14 to communicate with each other.

On the outside of the front machine wall 7, an operating device 17 for starting and stopping the dryer 5 and a burner case 19 containing a burner 18 are detachably provided. Exhaust shell 21 in which an exhaust fan 20 is rotatably installed
The configuration includes the following.

The grain raising machine 22 is installed on the front side of the machine wall 7, and has a bucket 1 and a belt with a conveyor 23 stretched therein, and its upper end is connected to the starting end of the transfer gutter 8 by a discharging cylinder. 24 for communication, and a supply gutter 25 is provided between the lower end and the terminal end of the grain collection gutter 16 for communication.

The moisture measuring device 6 for detecting grain moisture is detachably provided in the vertically central portion of the grain hoist 22. In this moisture measuring device 6, the moisture motor 26 rotates in response to an electrical measurement signal sent from the operating device 17, and each part of the moisture measuring device 6 is driven to rotate, and the packet conveyor 23 transports the moisture to the upper part. The grains that fall during transportation are received by the downflow gutter 27.

The grains are guided down through the downflow gutter 27 and supplied into the moisture measuring device 6, and at the same time, the grains are pinched and crushed.
The structure is such that the moisture content of the crushed grains is detected.

The moisture measuring device 6 has a box shape, and a grain transfer device 28' is provided on the upper part of the box body, and this transfer device 28' supports the transfer rolls 3, 3 with a transfer roll shaft 28°28. established,
The transfer roll shafts 28, 28 are connected by a connecting plate 29', and at the same time, the transfer roll shafts 28, 28 are rotated to a predetermined position via a gear or the like by a transfer roll motor 29 that rotates in forward and reverse directions. The guide plate 2 is pivotally supported with a certain gap provided between it and the outer circumferential surface of the rotating transfer roll 3 on one side, and the outer circumferential surface of the transfer roll 3 of - A spiral groove 1 with a shallow depth when the width of the groove is narrowed to fit one grain at a time, and a deep spiral groove 30 that allows residual grains that have not been fed into this spiral groove 1 to leak out. In addition, the outer peripheral surface of the transfer roll 3 on the other side has a groove width wider than that of the transfer roll 3 on the one side, into which wheat, barley, and beer barley are fitted one by one. A deep spiral groove 1;
The structure is such that a deep spiral groove 30 is provided to allow residual grains that have not been fed into the spiral groove 1 to leak out.

The grain transfer device 28' selects the transfer roll 3 according to the type of grain to be dried and manually transfers the transfer roll 3.
It may also be configured to rotate to a predetermined position and set at the predetermined position.

The grains supplied from the downflow gutter 27 onto the transfer roll 3 on one side are fitted one by one into the spiral groove 1 of the transfer roll 3, and then moved along the spiral groove 1. A pair of detection rolls 4, 4 are transferred while being guided by the guide plate 2, fall from the end, pass through the downstream guide plate 30', and are supported by a roll shaft 31, 31 below the downstream guide plate 30'. The structure is such that it is supplied upward.

The grains supplied onto the detection rolls 4, 4 are fed one by one between the outer circumferential surfaces of the detection rolls 4, 4, and crushed under pressure. is detected, and this detected moisture voltage value is replaced with grain moisture to detect the grain moisture value.

Below the detection rolls 4, 4, the detection rolls 4, 4
It has a structure in which a cleaning roll 32.32 is pivotally supported to remove moisture-detected grains attached to the outer peripheral surface.
．． On the lower side of 32, crushed grains for which moisture has been detected, immature grains leaking from the spiral groove 1 during transfer in the spiral groove 1, and remaining grains leaking from the spiral groove 30 of the deep groove are placed in the grain raising process. The configuration includes a discharge gutter 33 for returning the water to the inside of the machine 22.

The moisture motor 26 is provided in the box upper part, and the moisture motor 26 moves the transfer roll 3 on either side.
The detection rolls 4, 4, etc. are rotationally driven via gears or the like.

The operating device 17 has a box shape, and the surface plate of the box has a
A start switch 3 for starting the dryer 5 for each work.
4. A stop switch 35 for stopping operation, a moisture setting switch 36 for setting the grain finishing target moisture according to the operating position, a grain type setting switch 37 for setting the temperature of the hot air generated from the burner 18 according to the operating position, and staking. It is configured to include a quantity setting indicator 38 and a digital display section 39 for performing various displays.

Moreover, there is an A-D converter 40 for A-D converting the detected value,
An input circuit 41 to which the converted value converted by this A-D converter 4o is input, an input circuit 42 to which various detected values are input,
A CPU 43 that performs arithmetic and logical operations, comparison operations, etc. on input values input from these input circuits 41 and 42. This CP
It has a built-in drying control device 45 that includes an output circuit 44 and the like that receives and outputs various commands from U43.

The moisture detection control of the grains by the drying control device 45 is performed as follows. That is, the burner 18
If the operation content of the grain type setting hunting 37, which is one of the conditions for setting the temperature of the hot air generated from the Then, the transfer roll motor 29 is started to rotate in the forward direction by the CPU 43, and is rotationally controlled to a position close to the transfer roll motor guide plate 2, and then stopped, where paddy grains or bare wheat grains are loaded and fitted. The structure is such that paddy grains or bare wheat grains are transported by this transport roll 3 and this guide plate 2.

Further, if the operation content of the grain type setting hunting 37 is, for example, an operation to the wheat, barley, or beer barley position, the CP
When input to U43, this CPU
At 43, the transfer roll motor 29 is started to rotate in reverse;
Wheat, barley, or beer wheat, which is rotatably controlled and stopped at a position close to the guide plate 2 for the transfer roll, is inserted and fitted. The structure is such that beer barley is transported.

Additionally, the drying control device 45 has the following functions. That is, when the detection of grain moisture is started, the grain moisture detected for each grain is stored and held in the CPU 43, and when the detected grain moisture value reaches 32 grains, the average value of these 32 grains is The CPU calculates the average moisture value, and the calculated average moisture value is displayed on the display section 39 as the grain moisture detected once.

Further, the operation details of the moisture setting setting 37 are inputted to the CPU 43, and the finishing target moisture content of the grains is set by this human power. On the other hand, the average moisture value of the grain detected and calculated by the moisture measuring device 6 is compared with the set finishing target moisture, and it is detected that the calculated average moisture value of the grain has reached the finishing target moisture. Then, each part of the dryer 5 is automatically stopped to finish drying the grains.

Hereinafter, the operation of the above embodiment will be explained.

The setting knobs 36, 37, and 38 of the operating device 17 are operated to predetermined positions, and in conjunction with the operating position of the grain type setting knob 37, the grains of the grain moisture measuring device 6 are inserted and fitted. The transfer roll 3 to be transferred is selected and set, and by operating the start switch 34 to start the drying operation, each part of the grain dryer 5, the burner 18, the moisture measuring device 6, etc. are started, and this burner Hot air is generated from step 18 and drying operation is started.

The hot air generated from the burner 18 is stored in the storage chamber 10 by passing from the blowing chamber 13 through the drying chamber 14.14, passing through the exhaust chamber 12. The grain is transferred from this storage chamber 10 to the drying chamber 14.1.
The grains are dried by being exposed to the hot air while flowing down through the grain collecting trough 16.
The grains are transferred from the grains through the supply gutter 25 into the grain hoisting machine 22 by the lower transfer spiral, transported to the upper part by the packet conveyor 23, passed through the dispensing cylinder 24, and supplied into the transfer gutter 8, where they are diffused. It is transferred and supplied onto the board 11 by the upper transfer spiral,
The diffusion plate 11 uniformly diffuses and returns the water into the storage chamber 10 and circulates it for drying.

The grains that fall while being conveyed to the upper part of the bucket 1 by the conveyor 23 are received by the downflow gutter 27, and are supplied from the downflow gutter 27 onto the set transfer roll 3, and then into the spiral groove 1 of the transfer roll 3. The grains are inserted one by one and are transferred along the spiral groove 1 while being guided by the guide plate 2, falling from the end and passing onto the falling guide plate 30' and then onto the detection rolls 4, 4.
1 between the outer peripheral surfaces of the detection rolls 4, 4.
At the same time as the crushed grains are compressed and crushed one by one, the moisture content of the crushed grains is detected.When the moisture content of 32 grains is detected, the average value of the moisture values of the 32 detected grains is calculated. When the calculated average moisture value reaches the finishing target moisture value set by operating the moisture setting knob 36, the operating device 1
The drying machine 5 is automatically controlled by the drying control device 45 of No. 7 to automatically stop the drying of the grains.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is an enlarged side sectional view of a grain moisture measuring device, and Fig. 3 is an enlarged side sectional view of a grain moisture meter.
The figure is an enlarged rear view of the grain moisture measuring device, Figures 4 and 5 are enlarged side views of the transfer roll, Figure 6 is an overall side view of the grain dryer that can be partially cut away, and Figure 7 is an enlarged side view of the grain dryer. A-A sectional view in Figure 6,
FIG. 8 is an enlarged partially cutaway front view of a portion of the grain dryer. In the figure, 1 is a spiral groove, 2 is a guide plate, 3 is a transfer roll,
4 indicates the detection roll.

Claims (1)

[Claims] An outer spiral groove 1 that rotates to fit grains into a spiral groove 1 on the circumferential surface and guide them to a guide plate 2 extending in the direction of the rotation axis to feed and transfer the grains.
A plurality of transfer rolls 3 having different widths and depths are rotatably provided, and the pulverized grains are crushed while receiving the grains supplied from the transport rolls 3 and the guide plate 2. A grain moisture meter equipped with a pair of detection rolls 4 for detecting grain moisture, characterized in that the transfer roll 1 is selected based on the type of grain whose moisture is to be detected to transport the grain. Transfer device.