JP3783123B2 - Soybean automatic weighing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soybean measuring apparatus that automatically measures soybeans for each preset weight.
[0002]
[Prior art]
A tank equipped with an automatic shutter and a weigh scale that measures the weight of cereal filled in the storage bag from this tank, opens the automatic shutter of the tank when a tare is detected by the weigh scale, and measures a predetermined weight using the weigh scale A cereal automatic weighing machine that sometimes closes an automatic shutter is described in JP-A-2-103420.
[0003]
Since this automatic grain weighing machine can be used as it is for automatic weighing of soybeans, the automatic grain weighing machine has been put to practical use as an automatic weighing machine for soybeans.
[0004]
[Problems to be solved by the invention]
By the way, since the conventional grain automatic weighing machine described in the above-mentioned JP-A-2-103420 is mainly used for automatic weighing of brown rice, the shutter when the shutter for opening and closing the grain outlet of the tank is closed. And the opening end of the cereal outlet are set to a width (about 3 mm) that is so narrow that brown rice does not leak out. For this reason, when used for weighing soybeans that are significantly larger in size than brown rice and are approximately spherical, soybeans are sandwiched between the opening end of the cereal outlet and the shutter in the process of closing the shutter, and the shutter is closed. In some cases, soy may continue to leak, resulting in weighing errors, and in such a case, the soybean sandwiched between the opening end of the cereal outlet and the shutter may be damaged.
[0005]
Also, in the process of opening the shutter that closes the cereal outlet, the soybean has a substantially spherical shape and is easy to roll, so the soybean moves from the opening end of the cereal outlet as the shutter moves. The protruding soybean may stick out between the open end of the cereal outlet and the shutter in the process of closing the shutter, which may interfere with the operation of the shutter and damage the sandwiched soybean. There are things to do.
[0006]
Therefore, in view of the problem when the conventional grain automatic weighing machine is used for measuring soybeans, the present invention takes the interval between the opening end of the soybean outlet at the closed position of the shutter and the particle size of soybeans. And by providing elastic plates facing the shutter at intervals smaller than the particle size of soybean on the side where the shutter of the soybean outlet starts to close and the side where the shutter ends, between the opening end of the soybean outlet and the shutter, An interval smaller than the grain size of soybean can always be maintained with respect to the opening and closing direction of the shutter, and when the shutter finishes closing, the opening of the soybean outlet outlet on the side where the shutter ends is closed by the bending of the elastic plate and the shutter. Soybeans can be prevented from being caught between them, and soybeans protrude from the opening end on the side where the shutter of the soybean outlet starts to close in the process of opening the shutter. Bets can be prevented, without malfunction opening and closing of the shutter occurs, and an object thereof is to provide a soy automatic weighing device never soybeans may be damaged along with opening and closing the shutter.
[0007]
In addition, the present invention increases the measurement accuracy by narrowing the amount of soybean flow out just before the end of weighing. In a so-called small drop mode, the soybean outlet outlet closes between the open end and the shutter. The opening degree of the elastic plate can be automatically adjusted by the elastic recovery of the elastic plate, and the clogging phenomenon and stagnation phenomenon caused by the small amount drop bridge can be eliminated and the small amount drop can be quantified smoothly and the measurement accuracy can be improved. It is an object to provide an automatic soybean weighing device capable of
[0008]
[Means for Solving the Problems]
In order to achieve the above object, an automatic soybean weighing device according to the present invention comprises a tank equipped with an automatic shutter, and a weigh scale for measuring the weight of soybean filled in the storage bag from the tank. In the soybean automatic weighing apparatus configured to close the shutter during weighing, the soybean outlet is provided with a shutter that opens and closes the soybean outlet opening downward in the tank while drawing an arc in the vertical direction, and the opening end of the soybean outlet in the closed position of the shutter And an elastic plate facing the shutter at intervals smaller than the particle size of soybean, respectively, on the side where the shutter of the soybean outlet starts to close and on the side where the shutter ends. To do.
[0009]
In the soybean automatic metering device according to the present invention, the side of the soybean outlet where the shutter begins to close is opened in an inclined manner in the direction in which the shutter closes, the elastic plate is in the inclined direction, and the side where the shutter finishes closing is vertical. The elastic plate is preferably provided in the vertical direction.
[0010]
Further, in the automatic soybean weighing device according to the present invention, each elastic plate is composed of an elastic plate mainly composed of rubber or rubber that is slightly bent in the expanding direction by the soybean flowing down and filling the soybean outlet. It is preferable to do.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
1 is an overall perspective view of a soybean weighing device according to the present invention, FIG. 2 is a vertical side view of the soybean outlet and shutter portion, FIG. 3 is a bottom view of the soybean outlet, and FIG. 4 is a mode in which the soybean outlet is fully opened. FIG. 5 is a vertical side view of the soybean outlet and shutter portion showing a mode in which the amount of soybean outflow is reduced.
[0012]
In FIG. 1, 1 is a soybean supply hopper, 2 is a bucket conveyor, and 3 is a tank. A bean outlet 4 that opens downward is provided at the lower portion of the tank 3, and the soybean outlet 4 is provided with a shutter 5 that opens and closes it in an arc. Reference numeral 6 denotes a spill-resistant cylinder for spilled soybeans. 7 is a control panel. A weigh scale 8 is arranged below the soybean outlet 4 and the soybeans flowing out from the soybean outlet 4 are stored in a storage bag (not shown) set on the weighing scale 8. The storage control is automatically controlled by the control panel 7.
[0013]
2 to 5 show the configuration of the soybean outlet 4 and the shutter 5 of the tank 3. As shown in these figures, the soybean outlet 4 opens downward. The side 9a of the opening end 9 where the shutter 5 begins to close opens in an inclined manner in the direction in which the shutter 5 closes, and the side 9b where the shutter 5 finishes closing opens vertically. The inclination of the opening 9 on the side 9a at which the shutter 5 begins to close is set to an angle at which soybean flows out without any delay in the fully opened state of the shutter 5, and the interval between the opening end 9 and the shutter 5 in the closed position is as follows. It is taken sufficiently larger than the particle size of soybean. Here, the particle diameter of soybean is the length of the largest soybean to be weighed.
[0014]
Elastic plates 10 and 11 are attached to the opening end 9 of the soybean outlet 4 on the side 9a where the shutter 5 begins to close and the side 9b where the shutter ends. Each of the elastic plates 10 and 11 is composed of rubber or an elastic plate mainly composed of rubber that is slightly bent in the expanding direction by soybean filling the soybean outlet 4 and flowing down. The soybean outlet 4 is provided in the inclined direction of the side 9a where the shutter starts to close, and the elastic plate 11 is provided vertically in the direction of extending downward the side 9b where the shutter 5 finishes closing. The interval at the closed position of the elastic plates 10 and 11 and the shutter 5 is made smaller than the particle size of soybean. In addition, although the particle diameter of soybean here is taken as the length of the smallest soybean to be weighed, it is preferably less than half the particle diameter of the soybean.
[0015]
In the illustrated embodiment, the elastic plate 11 provided on the side 8b of the opening end 9 of the soybean outlet 4 where the shutter 5 finishes closing is formed in a U shape in plan view so that it slightly covers the front and rear side surfaces. By forming the elastic plate 11 in this way, the soybean flowing out after filling the soybean outlet 4 can be flexed and restored in a moderately expanding direction, and the soybean outflow automatic adjustment function is satisfactorily maintained. Will be able to.
[0016]
The soybean stored in the tank 3 from the soybean supply hopper 1 through the bucket conveyor 2 flows out from the soybean outlet 4 by fully opening the shutter 5 (see FIG. 4), and the storage bag set on the weighing scale 8 ( (Not shown). When a preset weight value is measured in the control panel 7, the shutter 5 is closed to a position where the soybean outlet 4 is squeezed small, so that the amount of soybean spilled is reduced, so-called small amount drop, and storage of soybeans is performed. (See FIG. 5), the shutter 5 is fully closed when the measurement set value is measured. In this way, the small amount is dropped just before the end of the weighing because the weighing error due to the amount already flowing out from the soybean outlet 4 when the shutter 5 is closed when the weighing set value is measured in the weighing scale 8. This is because the measurement accuracy is reduced and the weighing accuracy is increased.
[0017]
As shown in FIG. 5, in the case of a small drop, the degree of opening between the shutter 5 and the side 9b of the opening end 9 of the soybean outlet 4 where the shutter 5 finishes closing is reduced to a small value. In the aspect of dropping the amount, the degree of opening of the soybean outlet 4 is automatically and appropriately adjusted by the bending and restoring action of the elastic plate 11 so that the soybean flows out without a delay even if the soybean is small. For this reason, even soybeans that are remarkably large and have a substantially spherical shape compared to brown rice are not bridging and clogged, and do not cause avalanche, maintaining an appropriate small drop mode. (See FIG. 5).
[0018]
Further, even if soybean is caught between the shutter 5 and the elastic plate 11 in the process of fully closing the shutter 5 after the small amount is dropped, the soybean is not damaged by the bending of the elastic plate 11. Moreover, the closing operation of the shutter 5 is not hindered (see FIG. 2).
[0019]
Further, in the squeezing operation process in which the shutter 5 is fully opened from the shutter 5 shown in FIG. 4 to the small drop shown in FIG. Since the soybean 5 is pushed and bent outward, the shutter 5 operating in the closing direction pushes the elastic plate 10 up slightly and then moves in the closing direction. For this reason, the operation in the closing direction of the shutter 5 is smooth, and the shutter 5 does not malfunction even when the soybean is large and substantially spherical.
[0020]
The present invention relates to an automatic soybean weighing device. In addition to soybean measurement, the present invention can be used as it is, for example, for measurement of red beans and other beans, or with some function adjustment.
[0021]
【The invention's effect】
According to the present invention, the interval between the opening end of the soybean outlet and the opening end of the soybean outlet at the closed position of the shutter is set to be larger than the particle size of soybean, and the soybean outlet outlet is closed on the side where the shutter starts and ends. By providing an elastic plate facing the shutter at an interval smaller than the particle size, the interval between the opening end of the soybean outlet and the shutter is always kept smaller than the soybean particle size in the opening and closing direction of the shutter. In the process of opening the shutter, it is possible to prevent the soybean from being caught between the opening end on the side where the shutter of the soybean outlet ends and the shutter by the bending of the elastic plate when the shutter is closed. Soy can be prevented from protruding onto the shutter from the opening end of the soybean outlet outlet on the side where the shutter begins to close, and a malfunction may occur in opening and closing the shutter. Ku, it is possible to obtain a soy automatic weighing device soy is not damaged with the opening and closing of the shutter.
[0022]
Further, according to the present invention, in a so-called small amount drop mode in which measuring accuracy is increased by reducing the amount of soybean flow out just before the end of weighing, the opening end on the side where the shutter of the soybean outlet ends and the shutter are closed. The degree of opening can be adjusted automatically by the elastic recovery of the elastic plate, eliminating clogging and stagnation caused by small drop bridges and smooth quantification of small drop and improving measurement accuracy. Soybean automatic weighing device that can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a soybean weighing device according to the present invention.
FIG. 2 is a longitudinal side view of a soybean outlet and a shutter portion of the soybean weighing device shown in FIG.
FIG. 3 is a bottom view of the soybean outlet.
FIG. 4 is a vertical side view of a soybean outlet and a shutter portion showing a state in which the soybean outlet is fully opened.
FIG. 5 is a vertical side view of a soybean outlet and a shutter portion showing a mode in which the amount of soybean flow is reduced.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Soybean supply hopper 2 Bucket conveyor 3 Tank 4 Soy outlet 5 Shutter 6 Splash prevention cylinder 7 Control panel 8 Weighing scale 9 Open end 9a The side 9b of the open end 9 begins to close 9b The side where the shutter 5 of the open end 9 finishes closing 10 Elastic plate 11 Elastic plate

Claims (3)

In an automatic soybean weighing device having a tank equipped with an automatic shutter and a weighing machine for measuring the weight of soybean filled in the storage bag from the tank, and closing the shutter when weighing a predetermined weight by the weighing machine, And a shutter that opens and closes the soybean outlet opening in an up and down direction in an arc, and the interval between the opening end of the soybean outlet at the closed position of the shutter is larger than the particle size of the soybean, and the soybean outlet An automatic soybean weighing device characterized in that an elastic plate facing the shutter is provided on the side where the shutter begins to close and the side where the shutter ends, respectively, at intervals smaller than the particle size of soybean. The side where the shutter of the soybean outlet begins to close opens in a slanting direction in the direction in which the shutter closes, the elastic plate opens in the direction of the slanting, and the side where the shutter finishes closing opens vertically, and the elastic plate in the vertical direction The soybean automatic weighing device according to claim 1, wherein the soybean automatic weighing device is provided. 3. The automatic soybean measurement according to claim 1 or 2, wherein each elastic plate is made of rubber or rubber elastic body mainly bent in the expansion direction by soybean flowing down after filling the soybean outlet. apparatus.

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