JPH0541358Y2 - - Google Patents

Description

[Detailed explanation of the invention] "Industrial application field" This invention targets grains such as rice and wheat,
This invention relates to a test dryer for grains in grain communal drying facilities such as rice centers, country elevators, and dry stores, which are comprised of a receiving section, a drying section, a storage section, a preparation and shipping section, etc.

``Prior Art'' Conventionally, as shown in Japanese Patent Application Laid-open No. 57-61940, a commonly used test dryer places a sample lot of paddy into a plurality of storage shelves fixed in a drying chamber, and after a certain drying time, the test dryer The structure is such that the sample rice is taken out from the storage shelf each time it is confirmed that the moisture content of the sample rice has reached an appropriate level.

``Problems that the invention seeks to solve'' With such conventional methods, not only the loading and unloading of sample rice into and out of the test dryer but also the moisture content measurement are manually performed each time, requiring manual labor. There were problems with extremely poor work efficiency and lack of accuracy.

``Means for Solving the Problems'' Therefore, the present invention provides a grain transport mechanism for moving a plurality of storage bodies containing sample grains, and a method for measuring the moisture content of the sample grains placed in the storage bodies. a moisture detection mechanism, a moisture measurement position detection means for detecting that the storage body has reached the moisture detection mechanism section, and a storage body that uses a grain transport mechanism when the measured moisture content of the sample grain becomes below a certain level. The present invention is characterized by being equipped with a grain discharge mechanism that automatically takes out sample grains outside the moving range.

"Function" According to the present invention, the storage body is moved by the grain transport mechanism, the moisture content of the sample grain is detected by the moisture detection mechanism and the moisture measurement position detection means, and the moisture content is determined to be below a predetermined level. Each operation of discharging sample grains by the grain discharging mechanism, which is sometimes performed, can be automatically performed, and it is possible to save labor in operations such as receiving and self-inspecting at the facility.

"Embodiments" Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Figure 1 is a cross-sectional explanatory diagram of the test dryer, Figure 2
The figure is an explanatory diagram of the entire facility.
Samples of paddy are taken out from the container for drying and self-inspection.The raw paddy is loaded into individual and consignment units and weighed by a receiving and weighing machine 3, and the raw paddy from the weighing machine 3 is carried in via conveyors 4 and 5. a storage tank 6 in which the raw paddy is weighed and pooled; a weighing tank 7 in which the weight of raw paddy from the storage tank 6 is measured; a rough sorter 8 and a conveyor 8a that remove straw waste from the paddy from the conveyor 5; The receiving and weighing sections 1 and 2 are composed of a discharging tank 9 for discharging paddy to a paddy silo or a drying section, and continuously measures the weight and moisture content of paddy, and unloads the paddy from the drying section. The rice is transported to the preparation and shipping department where it is screened and sorted, where it is prepared into brown rice and stored or shipped.
It is configured to input the number and the receiving data (paddy weight and moisture content) from the output section 13 of the weighing tank 7.

Furthermore, it is equipped with a fractionator 14 for taking out sample paddy for self-inspection, and a part of the raw rice weighed in the weighing tank 7 is taken out as sample rice into the fractionator 14, and from the shipped unprocessed raw rice. Uniformly determined (approx.
800 grams) of sample rice is taken out through the condenser 14 and the metering branch valve 15, and the branch valve 1
A certain amount of sample paddy from 5 is transferred to sample loader 1.
6 to a test dryer 18 to be described later,
In addition, the surplus sample paddy from the reduction unit 14 is discharged from the tank 9.
The structure is such that a certain amount of sample paddy is taken out to the sample loader 16 during this operation each time each shipment is weighed for each individual and cargo.

Also, a test dryer 18 that dries the sample paddy from the sample loader 16 to a substantially constant moisture content.
When feeding the sample paddy from the loader 16 to the receiving hoppers 19, 19 of the dryer 18, it outputs the two-path discrimination signal of each loader 16, 16 to the central control unit 11, and also outputs the discrimination signal of the two paths of each loader 16, 16 to the receiving hoppers 19, 19 of the dryer 18. The receiving number of the sample paddy is read by the number reader 20, and when the sample paddy after drying is released from the outlet 21, the receiving number of the released sample paddy is read by the number reader 22, and the moving position of the sample paddy is centrally controlled. Part 11
It is configured to input .

Next, it is equipped with a self-inspection machine 23 that separates the sample rice dried in the dryer 18 into sized grains (unpolished rice) and waste grains (waste rice) and measures the proportions of these grains,
The dry sample rice from the outlet 21 is passed through the quantitative branch valve 24 to the amount necessary for one self-inspection (300
grams) into the receiving hopper 25, and the sample packaging machine 26 seals the excess dry sample paddy, prints a consignment number on the bag and stores it, and samples the brown rice taken out from the self-inspection machine 23. Brown rice is sealed and packaged using a sample packaging machine 27, and a consignment number is printed on the bag for storage.The amount of processed brown rice and scrap rice is input to the central control unit 11, and this ratio is calculated and recorded. It is composed of

The test dryer 18 is used to dry a certain amount of sample rice taken out by the sample loader 16, packed in a net-like bag 28 which is a storage body, in a drying chamber 18a, as shown in FIG. As shown in FIGS. 5 to 5, a clip 32 serving as a grain support is attached to an endless chain 31 extending between the driving sprocket 29 and the floating sprocket 30.
The bags 28 are hung through the drying chamber 18a.
A chain conveyor 33, which is a grain conveying mechanism that circulates grains inside the dryer casing 34 at a constant speed; An exhaust duct 38 extending in a comb shape, an exhaust fan 40 that exhausts the air inside the machine casing 34 through the duct 38 from an exhaust pipe 39 in the upper part, and a bag for sample paddy from the sample loader 16. 2
8 to the clip 32
The number reader 20 is configured to read the number of the suspended bag body 28.

Moreover, the bag body 28 moved by the conveyor 33
chuck arm 4, which is a moisture detection mechanism that detects the moisture content of the sample paddy inside based on a change in capacitance of a hemispherical moisture sensor 42;
3, 44, and take-out arms 45, 46 which are grain discharge mechanisms that forcibly open the clip 32 and discharge the grains into the delivery port 21 when the moisture content thereof is below a certain level.
and a motor 48 that rotationally drives the drive sprocket 29 through a chain transmission mechanism 47, and the conveyor 33 is driven continuously or intermittently by the motor 48, and the bag body 28 is moved along the meandering path 3.
At the same time, the moisture sensor 42 of one chuck arm 43 is used as a positive electrode, the other chuck arm 44 is used as a negative electrode, and the bag body 28 is sandwiched between the chuck arms 43 and 44 to absorb the electrostatic charge of the moisture sensor 42. The moisture content of the sample paddy is detected based on the change in capacity, and when the sample paddy is dried to the set state, this bag body 28 is moved to the take-out arms 45, 4.
The bag body 28 is taken out to the outlet 21 at position 6, and the number of the taken out bag body 28 is read by a number reader 22.

Furthermore, upper and lower opening/closing windows 49 and 50 are provided at the front upper and lower parts of the dryer 18, respectively, so that the inside can be inspected through the upper opening/closing window 49, and the bag body 28 can be attached to the clip 32 by manual operation through the lower opening/closing window 50. It is configured so that it can be suspended. Furthermore, an operation panel box 51 is provided on the right side of the dryer 18.
A moisture meter 52, a thermometer 53, a group of various operation switches 54, etc. are provided.

As shown in FIGS. 6 and 7, the clip 3
The first
It is moving sequentially in the direction of the solid line arrow in the figure. The chuck arms 43 and 44 have their base ends integrally supported by shafts 56 and 57, and these shafts 56 and 57 are interlocked and connected to each other via sector-shaped partial gears 58 and 59, and one shaft 56 is connected to a pair of cylinders. 60,61
A swing arm 62 is attached to one piston rod 60a.
are connected via. The cylinders 60, 6
1 integrally connects the main bodies in mutually opposite directions via a connecting plate 63, and the piston rod 6 of the other cylinder 61.
1a is fixedly supported on the machine casing 34 side via the shaft 64,
When either one of the cylinders 60, 61 is extended, the chuck arms 43, 44 are at the position of the imaginary line a in FIG.
are configured to close to position b, which is in a substantially parallel state. Furthermore, as shown in FIG.
6, and the receiving plate 66 is movably slid into contact with the bottom plate of the drying chamber 18a, and the moisture measurement position of the bag body 28 by the conveyor 33 (chuck arms 43, 4
4 rooms) to assist in smooth movement.

As shown in FIG. 8, the extraction arms 45, 4
6 has its base end integrally supported by shafts 67 and 68, and these shafts 67 and 68 are interlocked and connected to each other via sector-shaped partial gears 69 and 70, and is fixedly supported on the machine casing 34 side via a shaft 71. The shaft 6 is attached to the tip of the piston rod 72a of the air cylinder 72, which is a member.
When the fixed swing arms 73 of No. 8 are connected and the cylinder 72 is extended from the solid line state in FIG.
At the same time as the arms 45, 46 are closed as indicated by the solid lines in the figure, the press rolls 74, 75 at the tips of the arms 45, 46 are configured to forcibly open the clip 32.

Further, a discharge guide plate 76 that guides the falling bag 28 to the outlet 21 when the clip 32 is opened is fixedly supported by one of the shafts 68, and is linked to the closing operation of each arm 45, 46. The guide plate 76 is provided so as to be rotated counterclockwise.

By the way, as shown in FIG. 1, FIG. 6, and FIG. A second moisture detection switch 78, which is a moisture measurement position detecting means for detecting that the bag 28 has reached the moisture measurement state, is placed in the center position, and a second moisture detection switch 78, which is a moisture measurement position detection means, is placed in the center position, and a moisture detection switch 78 is placed above the chuck arms 43, 44, and the bag 28 after moisture measurement is placed on the chuck arm. A detachment detection third switch 79 for detecting detachment from the bag body 28 after moisture measurement is attached to the take-out arms 45 and 46.
A fourth release position detection switch 80 is installed to detect when the bag has reached the release position, and when the first bag detection switch 77 is turned on, the chuck arms 43 and 44 are once closed to position b, and the moisture sensor is closed. After adjusting the zero point of 42, the chuck arms 43 and 44 are held open in position a, and when the second moisture measurement position detection switch 78 is turned on, the chuck arms 43 and 44 are closed again in position b, with bag body 28 in the center. The operation is performed to measure moisture content, and then when the third detachment detection switch 79 is turned on, the next zero point adjustment is enabled, and the fourth discharge position detection switch 80 is turned on, and the moisture sensor 42 detects that the moisture content is below a certain level. When detected, the take-out arms 45 and 46 are closed and the bag body 28 is discharged from the outlet 21 to the outside of the machine.

The present embodiment is configured as described above and is installed in a rice center, country elevator, dry store, etc. Raw paddy harvested by a combine harvester or the like is input into the receiving and weighing machine 3 individually and by parcel, and is weighed. A certain amount of homogenized sample rice is taken out from the weighed raw rice in the tank 7 to the sample loader 16 via the fractionator 14 and the metering branch valve 15, while the sample rice from the loader 16 is transferred to the test dryer 18. The sample rice is dried to a set moisture content, and the dried sample rice is fed into the self-inspection machine 23 to measure the unpolished rice and scrap rice to calculate their ratio. The system controls the operation of each part, and the portion of unprocessed brown rice for each individual and consignment is registered in the office computer 10 based on the self-inspection data of the sample paddy corresponding to the consignment number.

The operation inside the test dryer 18 will now be explained with reference to the flowchart in FIG.
When the switch 77 reaches the switch 77 position, the switch 77 is turned on, and the third switch 79 is also turned on, and it is confirmed that the bag 28 has escaped between the chuck arms 43 and 44, the cylinders 60 and 61 are operated to close the chuck arm. 43 and 44 are closed to the b position to adjust the zero point of the moisture sensor 42. The capacitance that is the moisture value α at this time is memorized, and then the chuck arms 43 and 44 are opened to the a position and this arm 43 is closed to the b position. , 44 from the upper surface of the receiving plate 66 to the next bag body 2.
8 and the second switch 78 is turned on, the chuck arms 43 and 44 close again to the b position.
The capacitance, which is the moisture value β of the sample rice inside the bag body 28, is detected. When the difference (β-α) is below a certain level and the bag body 28 reaches the fourth switch 80 position and the switch 80 is turned on, the cylinder 7
2 operates to close the take-out arms 45 and 46, release the bag 28 suspended from the creep 32, and release the bag 28 from the outlet 21 to the outside of the machine.

In the above embodiment, the chuck arms 43, 44
Although the chuck arms 43 and 44 are provided so as to be perpendicular to the moving direction of the bag 28, the bag 28 may be moved in the center between the chuck arms 43 and 44, which are provided substantially parallel to each other.

"Effects of the Invention" As is clear from the above embodiments, the present invention includes a grain transport mechanism 33 for moving a plurality of storage bodies 28 for storing sample grains, and a grain transport mechanism 33 for moving a plurality of storage bodies 28 containing sample grains, and Moisture detection mechanisms 43 and 44 that measure the moisture content; moisture measurement position detection means 78 that detects that the storage body 28 has reached the moisture detection mechanisms 43 and 44; When the amount is below a certain level, the grain transport mechanism 3
3, the grain discharging mechanism 45, 46 automatically takes out sample grains outside the movement range of the storage body 28, and the movement of the storage body 28 by the grain transport mechanism 33, moisture detection mechanisms 43, 44, and Detecting the moisture content of the sample grain by the moisture measurement position detection means 78 and automatically performing each operation of discharging the sample grain by the grain discharge mechanisms 45 and 46 when the moisture content falls below a predetermined value. This enables labor-saving work such as facility receiving and self-inspection.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional explanatory diagram of the test dryer, Figure 2 is an explanatory diagram of the entire facility, Figure 3 is a front view of the test dryer, Figure 4 is a right side view of the test dryer, Figure 5 is a rear view of the same, Figure 6 is an explanatory diagram of the test dryer. 7 is an explanatory side view of the previous figure, FIG. 8 is an explanatory diagram of the operation of the take-out arm, and FIG. 9 is a flowchart showing the relationship between the first to fourth switches. 28...Bag body (storage body), 33...Chain conveyor (grain transport mechanism), 43, 44...Chuck arm (moisture detection mechanism), 45, 46...Take-out arm (grain discharge mechanism), 78... ...Moisture detection second switch (moisture measurement position detection means).

Claims (1)

[Scope of utility model registration request] A grain transport mechanism 33 that moves a plurality of storage bodies 28 for storing sample grains, and the storage bodies 28.
Moisture detection mechanisms 43 and 44 that measure the moisture content of sample grains placed in the sample grains; moisture measurement position detection means 78 that detects that the storage body 28 has reached the moisture detection mechanisms 43 and 44; The grain discharging mechanism 45, 46 automatically takes out the sample grain outside the movement range of the storage body 28 by the grain transport mechanism 33 when the moisture content of the sample grain becomes below a certain level. Grain test dryer.