JPH0833276B2 - Sample paddy drying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a sample paddy drying device in a rice center (common drying and preparation facility) or the like.

[Conventional technology]

At the rice center these days, in order to streamline the work of carrying in harvested rice that is temporarily concentrated, the participating farms are given a farmer's card with a farmer's code, and from the load receiving hopper to a rough sorter, an automatic moisture meter, and a weighing machine. Machines and cargo tanks (by product type, water content, etc.) are mechanically automated and controlled, various data obtained during the flow, storage and processing of product and farm card data, processing, printing on slips, etc. The computer is intensively processed.

This will improve the efficiency of clerical work and work, while for imported paddy rice, the final moisture, for example,
Converted to the weight of sized brown rice around 14.5%, the share of cargo receipts and receipts of each farm is calculated.

In order to process the equity calculation of each farmer, the operator
A sample is taken from the unhulled rice brought in and dried to a predetermined water content by a sample hull dryer (test dryer). That is, as shown in Japanese Utility Model Publication No. 59-30393 (see FIG. 6), a bottom wall portion is formed of a breathable material in a drying machine frame 101 provided with a hot air generator 102 and an exhaust fan 103. The drying box 104 is inserted and the sample paddy in the drying box 104 is dried by hot air passing from the upper opening of the drying box 104 to the bottom wall.

[Problems to be Solved by the Invention]

By the way, in the sample paddy dryer, the operator has to check the water content of the sample paddy in each drying box 104 by sticking, and the drying box 104a containing no sample is dried sideways. Insert it in the machine frame 101,
The dry air does not blow directly from the breathable material portion of the bottom wall of the dry box 104a, but since the amount of hot air passing through each sample pad changes whenever the number of dry boxes placed sideways changes, Set temperature of hot air generator 102 or blower 103
The amount of air flow must be adjusted, and in addition, the drying of this sample pad has a considerable effect on equity calculation.
It required careful work.

In view of the above, an object of the present invention is to provide a precise and rapid sample paddy drying device that does not require manual labor.

[Means for solving the problem]

In order to solve the above problems, the present invention provides: An endless chain having a bottom formed of a breathable material and a large number of drying boxes having an open top is hung at regular intervals and is rotatably hung in the machine frame.

B. An electric motor is provided for intermittently rotating the endless chain according to the mounting pitch of the drying box.

C. During the moving process of the drying box, a drying section including a heat generating section and a ventilator having an exhaust air passage communicating with the outside of the drying box for drying each drying box, and a sample supply device for the drying box , A sample discharging device for discharging the dried sample, and a moisture measuring device for measuring the moisture content of the sample in the drying box,
To arrange.

D. A control device is provided, which is connected to the electric motor, the drying unit, the sample discharging device, and the moisture measuring device, respectively.

I took the technical means.

[Operation] The drying box loaded with the sample by the sample supply device moves to the drying section along with the endless chain that rotates intermittently, receives the drying action by hot air, and then reaches the next drying section. In the meantime, it moves without being subjected to the drying action, is subjected to so-called tempering, and is subjected to the drying action again in the drying section, which is an intermittent drying action. Then, the data of each sample obtained by the measurement by the water content measuring device provided during the moving process of the drying box is input to the control device every moment.

Example of Invention

 A preferred embodiment of the present invention will be described with reference to the drawings.

The sample paddy drying apparatus 1 is formed by a machine frame 2 having a slightly oblong box shape and a substantially closed state, and a pair of endless chains 3 is formed inside the machine frame 2.
Is rotatably laid so that it can be folded up and down in multiple stages. That is, the chain gears 4,5, 6, 7 are rotatably provided in pairs at almost four corners in the machine frame 2, and the chain gear 8 is located on the side of the chain gear 4 and the chain gear 9 is located in the middle stage portion. A pair of chain gears 10 are provided on the side of the gear 7 and a pair of chain gears 10 on the side of the chain gear 4 respectively so as to become lower, and the pair of endless chains 3 are bridged over the pair of chain gears 4 to 10. Further, the gear shaft 4a of the chain gear 4 is directly connected to the electric motor 11 having a servo mechanism, whereby the endless chain 3 rotates using the chain gear 4 as a drive gear.

A drying box 13 is hung between the pair of endless chains 3 by a pair of pins 12 at regular intervals. The drying box 13 has an opening 13a at the top and a material having air permeability at the bottom 13b,
For example, it is formed of a wire mesh or the like. A drying unit 14 for blowing hot air onto the sample in the drying box 13 is arranged at a constant interval between the drying boxes 13. That is, the drying unit 14 includes the drying box 13
Heater 15 above the room and equipped with a heater and a drying box 13
And an air blower 16 provided below the air blower 17, 18 from the heat generating portion 15 toward the upper opening 13a of the drying box 13 and from the air blower 6 toward the bottom surface 13b of the drying box 13, respectively. Is provided. The ends of the air passages 17 and 18 are formed into bellows, bent toward the opening 13a and the bottom surface 13b of the drying box 13, respectively, and generate an urging force to the opening 13a and the bottom 13b. At the leading edge of 18, the connection ports 19 and 20 formed slightly larger than the opening 13a and the bottom surface 13b are attached.
18 and the opening 13a and the bottom surface 13b of the drying box 13 are closely contacted and connected. Further, one end of an intake air passage 21 for taking in outside air is connected to the heat generating portion 15, and one end of an exhaust air passage 22 for removing dried hot air to the outside is connected to the air blower 16. The other end of the intake air passage 21 is exposed to the outside from an air intake (not shown) provided on the machine casing 2, and the other end of the exhaust air passage 22 is provided on the outside of the machine casing 2. Connected to the gathering airway 23,
A cyclone collector (not shown) provided at the end of the collective wind passage 23 separates dust and dust contained in the exhaust air and exhausts it to the atmosphere.

A guide plate 24 is fixed to the endless chain 3 alternately with the drying box 13, so that the connection ports 19 and 20 and the drying box 13 are attached and detached. That is, in the pair of endless chains 3, a portion other than the hanging portion of the drying box 13 is slightly higher than the opening 13a of the drying box 13 and slightly lower than the bottom surface 13b, and the side edges in the traveling direction are slanted. The guide plates 24 formed on the are mounted at regular intervals,
When the guide plate 24 moves together with the endless chain 3, the guide plate 24
The side edge in the traveling direction pushes up the connection mouthpiece 19 and pushes down the connection mouthpiece 20, and the connection mouthpieces 19 and 20 have openings 13a and a bottom surface.
13b and slides on the upper and lower side edges of the guide plate 24 (No.
(See Figures 4 and 5). Then, the guide plate 24 moves in the traveling direction to separate the connecting fittings 19 and 20 from the upper and lower side edges of the guide plate 24, and at the same time, the connecting fittings 19 and 20 are connected to the opening 13a and the bottom surface of the next drying box 13.
It is connected to 13b in a substantially airtight manner (the means for attaching and detaching the drying section 14 and the drying box 13 is not limited to the one described above).

A water content measuring device 25 for measuring the water content of the sample is provided at an arbitrary position in the moving process of the drying box 13. The moisture measuring device 25 is above the drying box 13, and the detecting section 25a is formed so as to be able to descend so that the detecting section 25a can contact the sample in the drying box 13. Further, a funnel 26 as a sample supply device, a discharge hopper 27 as a sample discharge device, and a dry box reversing device 28 above the discharge hopper 27 are provided during the moving process of the dry box 13. As the drying box reversing device 28, a device in which a push rod for reversing the drying box 13 when discharge is required is operated by a solenoid or the like can be appropriately adopted.

Further, a control box 29 as a control device is provided at an arbitrary position in the machine casing 2. As shown in FIG. 3, the control box 29 is composed of a CPU (central processing unit), a storage device including ROM and RAM, an interface, etc., and the control box 29 receives data from the moisture measuring device 25 and the terminal 30. At the same time, they are electrically connected so as to output signals to the drying unit 14, the drying box reversing device 28, the electric motor drive circuit 31, and the printer 32.

Next, the operation of the above embodiment will be described. In this embodiment, the number of drying boxes 13 is 60, six drying sections are provided at equal intervals, and the drying boxes 13 are moved every 6 minutes according to the mounting pitch.

Now, as a sample, for example, 1 kg from the paddy rice glutinous rice brought in by a certain farmer Ko is put into the drying box 13A from the funnel 26. Prior to this, the amount of rice received and the water content of the paddy rice on the farmer's side were measured by a so-called automatic receiving device, and the data was input to a computer such as an agricultural cooperative together with the farmer code for the farmer, and at the same time, the weight received and the water content. And a slip in which the product type and the like are stored is issued. Then, the data such as the received weight, the moisture content and the variety are input from the terminal 30 and stored in the storage device of the control box 29 for each farm code.

The dry box 13A below the funnel 26 moves to the position of the dry box 13B after 6 minutes, and further moves to the position of the dry box 13C after 6 minutes to reach the position of the drying section 14A. In the drying section 14A, the connection port 19 on the heat generating section 15 side and the connection port 20 on the air blower 16 side are respectively attached to the opening 13a and the bottom surface 13b of the drying box 13A by the guide plate 24 attached to the endless chain 3. . When the drying box 13A is set in the drying section 14A and a signal indicating completion of setting (a sample presence / absence detection sensor may be provided) is input to the control box 29 by a limit switch (not shown) and other appropriate sensors, the control box 29 side The output signal from the heat generator 15 generates heat and the fan
16 is activated and the sample paddy in the drying box 13A is exposed to hot air of, for example, about 60 ° C.

In this way, when the drying unit 14A finishes drying for 6 minutes, the electric motor 11 operates by a predetermined number of rotations (or an angle) in response to a command from the control box 29 to move each drying box 13, but the drying unit 14A The passed sample rice is not subjected to a drying action for about 60 minutes before reaching the next drying section 14B, and during this time, the water content of the sample rice grains themselves and each particle is balanced (tempering), Prepare for the drying action.

In the present embodiment, the drying units 14A to 14G are a drying box.
Although they are arranged at equal intervals during the movement process of 13, for example, the drying unit 14
In some cases, A to 14G are continuously provided and the endless chain 3 is formed so as to be intermittently rotated in 6 pitch units of the drying box 13.

Further, with respect to the drying box 13J reaching the lower side of the moisture measuring device 25, the detection unit 25a descends and is pressed against the sample paddy in the drying box 13J, and the moisture content of the capacitance or the electric resistance method is changed. The measurement is taken. This moisture content value is the control box
29, the data of the sample paddy for each dry box 13 is updated, and the finished moisture content set, for example, 1
With respect to the sample paddy that has reached 4.5%, the subsequent hot air drying is stopped (in the control box 29, the drying box 13A is used as the reference drying box, and the position of every drying box 13 is detected by an appropriate sensor). As a result, the grain temperature of the sample paddy is lowered, and the test paddy work in the next step can be smoothly carried out (sometimes only ventilation is performed). And a dry box containing sample rice that has reached the finished water content
When 13K reaches above the discharge hopper 27, the control box 29
According to the output signal from the solenoid, for example, the solenoid is demagnetized and the push rod is extended, so that the bottom of the drying box 13K is lifted and the dry sample paddy in the drying box 13K is discharged to the outside of the machine through the discharge hopper 27. It is discharged and conveyed to a test hulling and screening machine (not shown). Further, since the dried hot air is collected in the collective air passage 23 through the exhaust air passage 22 and removed outside the machine, the inside of the machine casing 2 is always clean, and the control box 29,
It does not matter even if the moisture measuring device 25 and the like are arranged.

In the above embodiment, the endless chain was hung over in the vertical direction in the machine frame so as to be folded in multiple stages, but may be provided so as to overlap in the horizontal direction in the machine frame (transverse wave with short wavelength), Alternatively, it may be formed in a vertically long shape or a horizontally long shape,
Further, instead of the air blower 16 as a ventilator, a pressure feeding fan may be provided on the heat generating portion 15 side. Further, in view of workability, after all the samples are put in the drying box 13 in advance (the endless chain 3 is rotated at high speed), the sample paddy drying device 1 is operated for an arbitrary time, for example, 8 hours, The sample may be discharged almost at the same time and the test hulling work of the next process may be continuously performed. Also in this case, the dried sample is not subjected to the drying action in each drying section 14 (the number of the dried drying box may be blinked on the display (not shown)). .

〔The invention's effect〕

As described above, the sample paddy drying apparatus of the present invention has the following effects.

a. Rather than ventilating hot air through the entire frame of the sample paddy dryer, hot air is blown to each drying box unit, and exhaust air is exhausted to the outside by an exhaust air duct, which improves drying efficiency.
In addition, the inside of the machine frame is kept clean, and there are few failures in the control device, transport equipment, etc.

b. Since each drying box is dried, a constant drying action can always be performed even if the samples are not put in all the drying boxes.

c. The drying speed can be slightly changed by changing the rotation speed of the endless chain without changing the hot air temperature.

d. The drying unit, sample supply device, sample discharge device, and moisture measurement device are in fixed positions, and the endless chain that suspends the drying box is rotated, so the transport device does not become complicated.

[Brief description of drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention, and FIG. 2 is A of FIG.
-A sectional view taken along the line A, FIG. 3 is a control block diagram thereof, FIGS. 4 and 5 are enlarged perspective views of the same portion, and FIG. 6 is a partially cutaway front view showing a conventional example. 1 ... Sample paddy drying device, 2 ... machine frame, 3 ... endless chain, 4
〜10 …… Chain gear, 11 …… Motor, 12 …… Pin, 13 …… Dry box, 14 …… Dry section, 15 …… Heating section, 16 …… Blower, 1
7,18 …… Wind path, 19,20 …… Connector, 21 …… Intake air path, 2
2 ... Exhaust air passage, 23 ... Concentrated air passage, 24 ... Guide plate, 25 ...
… Moisture analyzer, 26 …… Funnel, 27 …… Discharge hopper, 28
...... Dry box reversing means, 29 ...... Control box, 30 ...... Terminal, 31 ...... Motor drive circuit, 32 ...... Printer, 101 ...
… Drying machine frame, 102 …… Hot air generator, 103 …… Exhaust fan, 10
4 ... Drying box.

Claims (3)

[Claims] 1. An endless chain having a bottom made of a gas permeable material and a plurality of drying boxes having an open top and suspended at regular intervals is rotatably hung in a machine frame to dry the endless chain. An electric motor that is intermittently rotated according to the mounting pitch of the box is provided, and during the moving process of the drying box, there is a heat-generating part for drying each drying box and an exhaust air passage communicating with the outside of the machine. A drying unit consisting of a ventilator, a sample feeding device for the drying box, a sample discharging device for discharging the dried sample, and a moisture measuring device for measuring the water content of the sample in the drying box are provided. In addition, a sample paddy drying device is provided with a control device connected to the electric motor, the drying unit, the sample discharging device, and the moisture measuring device, respectively. 2. The sample paddy drying apparatus according to claim 1, wherein the drying section is provided in a plurality of drying boxes. 3. The moisture measuring device measures the moisture content of a sample in a dry box below an arbitrary set moisture value, and then stops the operation of the drying section for the sample while the sample is discharged. The sample paddy drying device according to claim (1) or (2), which is formed.