JPH05164715A - Moisture content meter incorporation type automatic apparatus for selective weighing - Google Patents

Abstract

PURPOSE:To make it possible to measure and display the moisture content of good grains3 selected, on occasion, at the same time with a selective weighing operation. CONSTITUTION:A shell body 1 is provided with a selecting mesh body 2 rotated relatively and with a grain lifting helical cylinder 3 and the grain supplied from a hopper 5 and not selected yet is selected into good grain and waste one while it is lifted up by a helical vane 4. The good grain selected is released into a storage tank 10 from a release port in the upper part of the shell body 1. A drop port 10a is provided for the storage tank 10 and a moisture content meter is fitted on the inner wall thereof. On the other hand, a weighing stage 16 is constructed so that the good grain dropping from the drop port 10a is held in a sack 17 or the like and weighed thereon. The moisture content of the good grain detected by the moisture sensor and the weight of the good grain measured by the weighing stage 16 are displayed on numerical value display units.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moisture content meter built-in automatic sorting and weighing machine capable of simultaneously measuring and displaying the moisture content of selected grains during sorting and weighing.

[0002]

2. Description of the Related Art A conventional sorting and weighing machine has a function of simply sorting grains into good grains and waste grains, packing them into bags, and weighing the packed good grains. It has no means for measuring the moisture content of grains. (Japanese Patent Publication 6
2-56794). For this reason, when measuring the water content of good grains, the selected good grains were sampled and the moisture content was measured by a separately prepared water content meter.

[0003]

In the above conventional technique, the work of sorting and weighing grains and the work of measuring the water content must be performed in separate steps, which is time-consuming, and the water content of good grains is always required during the sorting and weighing work. There was a problem that the rate could not be measured.

The present invention has been made in view of the above-mentioned problems of the prior art, and a moisture content meter capable of measuring and displaying the moisture content of good grain selected at any time in combination with the sorting and weighing work. The purpose is to realize a built-in automatic sorting and weighing machine.

[0005]

In order to achieve the above object, an automatic sorting and weighing machine with a built-in water content meter according to the present invention is a cylindrical sorting net body rotatably disposed in a shell and the sorting net. A fried spiral tube concentrically and rotatably arranged in the body, a drive means for relatively rotating the selection net body and the fried spiral tube, and the shell body for storing selected good grains In an automatic sorting and weighing machine equipped with a storage tank disposed in the storage tank and a weighing platform for weighing the weight of the good grains discharged from the storage tank, the moisture content of the good grains in the storage tank is detected. And a numerical display controller having a numerical display for displaying the detected water content and the measured weight.

[0006]

[Function] The selected good grains are stored in the storage tank.
The moisture content of the stored good grains is detected by the moisture content sensor, and is displayed on the numerical display of the numerical display control device together with the weight measured by the weighing platform.

[0007]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of an automatic sorting and weighing machine with a moisture content meter according to the present invention.

As shown in FIG. 1, a storage tank 10 is disposed above the shell 1, and a drop port 10a of the storage tank 10 is configured to be opened and closed by a shutter 15. Further, a numerical indicator 18 described later is arranged on the upper side wall of the shell 1.

FIG. 2 is a schematic cross-sectional view of the main body of an automatic sorting and weighing machine with a built-in water content meter according to this embodiment.

As shown in FIG. 2, a partition plate 6 is fixedly attached to the inner wall of the lower portion of the hollow shell body 1, and a sorting net body 2 and a fried grain spiral tube 3 are provided on the lower surface of the partition plate 6. A two-output gear motor 7 having an output shaft rotating at high speed and an output shaft rotating at low speed, which is a driving means for relative rotation, is attached, and these two output shafts project above a central hole of the partition plate 6. There is. A supply cylinder 8 having a supply port 8a is attached to the upper surface of the partition plate 6, and in the supply cylinder 8, a grain guide cylinder 9 having guide blades 9c is concentrically and rotatably provided along the outer peripheral surface. It is arranged. The bottom wall of the grain guide cylinder 9 is connected to the low-speed output shaft and the top is open, and a plurality of engaging projections 9b are provided on the upper surface of a flange 9a provided on the peripheral edge of the upper end portion. It has been set up.

A cylindrical sorting net body 2 is placed on the grain guiding cylinder 9, and a plurality of engaging holes (not shown) formed at the lower end portion of the cylindrical sorting net body 2 are provided on the plurality of flanges 9a. By engaging with the engaging projections 9b, both are integrally rotated. Further, an upper partition plate 14 is fixed to the upper end of the shell body 1, and the upper partition slope 14
A discharge chamber (not shown) having an inner peripheral surface of a cylindrical shape is provided on the upper surface of the, and is communicated with the storage tank 10 through the discharge port.

Inside the grain guide cylinder 9 and the sorting net body 2, there is inserted and inserted a fried grain spiral cylinder 3 having spiral wings 4 attached to its outer peripheral surface, the bottom wall of which is a high speed rotation of the dual output gear motor 7. A support shaft 11 connected to the shaft and provided on the top plate 13 is rotatably supported on the upper wall of the shell body 1. In the spiral blade 4, the pitch in the lower portion in the figure, that is, the portion corresponding to the height of the supply cylinder 8 is large, and the pitch in the other portion, that is, the portion corresponding to the selection area is small.

On the outer peripheral surface of the upper end portion of the screening net 2, a plurality of scraping blades 12 are provided so as to be spaced apart along the peripheral surface, whereby the discharge chamber on the upper surface of the upper partition plate 14 is provided. All good grains can be scraped out and discharged to the storage tank 10.

The storage tank 10 is formed in a funnel shape, has a drop port 10a at the lowermost end thereof, and a water content sensor 21 for detecting the water content of good grains on its inner wall.
Is attached (see FIG. 3). The drop opening 10a is configured to be opened and closed by a shutter 15 driven by a drive device 15a having a solenoid or the like as a drive source. Incidentally, the shutter 15 of the present embodiment is provided so that the shutter 15 can rotate about a support shaft 15b as a center of rotation, and the shutter 15 is rotated by the driving device 15a to open and close the drop opening 10a. ing.

FIG. 4 is a block diagram of a numerical display controller having a numerical display of this embodiment, and FIG. 5 is a front view of the numerical display.

The output signal of the water content sensor 21 is supplied to the converter 2
2. Converted into a digital signal by the A / D converter 23, sent to the CPU 24, and displayed on the water content display section 18-2 of the numerical display 18 via the CPU 24. On the other hand, the weighing table 16 is internally provided with a load cell 25 for detecting the weight of the packed good grains. The electric signal representing the weight of good grains weighed by the load cell 25 is amplified by the amplifier 26, converted into a digital signal by the A / D converter 23, and converted into C
Numerical display 18 sent to the PU 24 and via the CPU 24
Is displayed on the weight display section 18-1.

As is clear from the above description, a series of A
The / D converter 23, the CPU 24, and the numerical display 18 are commonly used for processing the output signals of the load cell 25 and the water content sensor 21.

The water content is displayed by a numerical indicator 18A having a flow rate / water content display section 18A-2 capable of selectively displaying the flow rate display and the water content display as in the modification shown in FIG. can do. In this case, a changeover switch 18A-3 is provided separately and the changeover switch 18A-
By switching 3 the water content or flow rate is selectively displayed.

Next, the operation of this embodiment will be described.

As shown in FIG. 2, when unsorted grains are put into the hopper 5 and the two-output gear motor 7 is started, the fried grain spiral cylinder 3 and the sorting net body 2 rotate in mutually opposite directions. The unsorted grains dropped from the hopper 5 to the supply port 8a are guided by the guide blade 9c.
Is forcibly transferred downward by a plurality of guide ports 8b into the grain guide cylinder 9, scraped up by the spiral blade 4 and moved up, transferred to the sorting area, and spun by rotation in the sorting area. Small particles or scraps having a particle size smaller than the sorting holes of the sorting net body 2 are splashed outward by force, and are discharged into the room between the sorting net body 2 and the shell body 1 and fall downward. Then, it is discharged from the discharge port 1a to the outside of the machine.

On the other hand, the good grains having a particle size larger than that of the sorting holes are transferred upward by the spiral blades 4 and repeatedly fall, and reach the upper opening (not shown) of the sorting net body 2 to be integrated with the sorting net body 2. It is repelled by the plurality of scraping blades 12 that rotate in a vertical direction and is discharged into the storage tank 10 through the discharge port.

The operation of the numerical display controller having the numerical display of this embodiment will be described with reference to FIGS. 3 and 6.

When the operation is started, the sorting work is started and the shutter 15 is opened (step S1).

The good grains discharged into the storage tank 10 pass through the dropping port 10a and are placed in the bag 17 placed on the weighing table 16.
(See FIG. 2). When the weight of the bag 17 reaches a preset predetermined weight, the CPU 24 sends a signal to the driving device 15a to close the shutter 15 (step S).
Along with 2), the fact is displayed on the weight display section 18-1 of the numerical display 18.

On the other hand, in the measurement of the water content, when the time constant preset in the timer elapses after the shutter 15 is closed (step S3), good grains are in the vicinity of the drop port 10a provided with the water content sensor 21. (See FIG. 3B), and the water content is detected (step S4). Moisture content sensor 2
The output signal of 1 passes through the converter 22 and is converted into a digital signal by the A / D converter 23, and after the water content display value is fixed via the CPU 24 (step S5), the water content display of the numerical value display 18 is performed. It is displayed in section 18-2.

[0027]

Since the present invention is configured as described above, it has the following effects.

In the storage tank, the sorted good grains are
The water content is automatically measured and displayed along with the sorting and weighing work.

Since the numerical display control device is also used for displaying the water content and the weight, it is not necessary to provide a separate control device for displaying the water content, and the manufacturing cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of an automatic sorting and weighing machine with a built-in water content meter of the present invention.

FIG. 2 is a schematic sectional view of the embodiment shown in FIG.

3 shows the storage tank of the embodiment shown in FIG. 1, (A)
FIG. 4B is a partial cross-sectional view showing the shutter open state, and FIG.

FIG. 4 is a block diagram of a numerical display control device of the embodiment shown in FIG.

5 is a front view of the numerical display device of the embodiment shown in FIG. 1. FIG.

FIG. 6 is a flowchart showing the steps of opening and closing the shutter and displaying the water content in the embodiment shown in FIG.

FIG. 7 is a front view showing another example of the numerical display.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shell 2 Sorting net 3 Lifted grain spiral cylinder 4 Spiral blade 5 Hopper 7 Two-output gearmotor 8 Supply cylinder 9 Grain induction cylinder 10 Storage tank 10a Drop port 15 Shutter 16 Weighing platform 18, 18A Quantity indicator 18-1, 18A-1 Weight display section 18-2 Water content display section 18A-2 Flow rate / water content display section 21 Water content sensor 23 A / D converter 24 CPU 25 Load cell

Claims (1)

[Claims] 1. A cylindrical selection net body rotatably arranged in a shell, a concentric rotatably arranged spirally-wound cylinder in the selection net body, and the selection net body and fried grain. Drive means for relatively rotating the spiral cylinder, a storage tank arranged in the shell for storing the selected good grains, and for measuring the weight of the good grains released from the storage tank In an automatic sorting and weighing machine equipped with a weighing platform, having a water content sensor for detecting the water content of good grains in the storage tank, for displaying the detected water content and the weight weighed An automatic sorting and weighing machine with a built-in water content meter, which is equipped with a numerical display control device having the numerical display of.