JPH0676953B2 - Sampler for voluntary verification - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is used in a grain adjusting and storing facility which can receive grain from each producer and ship it through each process of drying, selecting and storing. , The present invention relates to the improvement of a device for collecting a sample for verification in order to voluntarily verify the grain quality of each producer at the time of receiving the cargo.

(Prior Art) Conventionally, as an apparatus of this type, for example, when the received grain is weighed by a weighing hopper, and when the weighed grain is discharged from the weighing hopper, a sampling cup is advanced toward the discharge port. , It is known that the falling grain is sampled a predetermined number of times in a cup.

(Problems to be Solved by the Invention) By the way, the amount of grain brought into and received by the above-mentioned facilities by each producer is generally variable.

Therefore, when the amount of grains received is small, a situation in which a fixed amount of sample cannot be secured occurs, which causes a problem that the voluntary verification cannot be optimized.

Therefore, in order to eliminate this, the present invention aims to make it possible to secure a fixed amount of sample regardless of the amount of grain received, and thereby to optimize the voluntary verification.

(Means for Solving Problems) In order to achieve such an object, the present invention has the following configuration.

That is, the present invention has a sample hopper that has a weighing hopper for weighing the amount of the received grain quantitatively at a fixed amount, and a sample collecting mechanism for sampling the voluntary test sample at a predetermined number of times with a sample cup at a position looking into the supply port or the discharge port of the weighing hopper. A sample replenishing cylinder for accommodating a replenishing sample is provided alongside the sample collecting mechanism, and both discharge sides of the sample collecting mechanism and the sample replenishing cylinder are used as a weighing container for measuring a substantially constant sample volume. The measuring container is connected, and the measuring container is provided with an on-off valve.

(Operation) The operation of the present invention will be described with reference to FIG.

Now, when grain is supplied to the supply port of the weighing hopper 3, a part of the grain is sampled multiple times by the sample cup 9 of the sample collecting mechanism 5 as a sample for voluntary verification, and at the same time, the sample replenishing cylinder 11 It will be housed inside. The replenishment sample accommodated in the sample replenishing cylinder 11 is filled into the overflow port 13 or a predetermined amount, and thereafter, the overflow port
Overflows from 13.

Since both the sample collection mechanism 5 and the sample in the sample replenishing cylinder 11 are supplied to the measuring container 15, when the sample obtained only by the sample cup 9 does not provide the required amount and is insufficient, the insufficient amount is It can be replenished with a replenishment sample, thus ensuring a certain amount of sample regardless of the amount of grain received.

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

In the figure, reference numeral 1 designates a large-sized load receiving hopper into which grain of a producer who has been transported to a grain adjusting and storing facility by a truck or the like is temporarily put in, and a discharge valve thereof is provided with an open / close valve 2.

Reference numeral 3 is a weighing hopper that inputs the grain from the cargo receiving hopper 1 and quantitatively weighs, and an opening / closing valve 4 is provided at the discharge port thereof.
The weighing hopper 3 has a weighing device (not shown), and outputs an electrical symbol according to the amount of grain from the weighing device.

Reference numeral 5 denotes a sample collecting mechanism that looks into the discharge port of the cargo receiving hopper 1 and collects a part of the grain falling from the discharge port into the weighing hopper 3 as a voluntary verification sample as described later.

As shown in FIG. 2, the sample collecting mechanism 5 has a sliding plate 7 having a through hole 6 on the discharge port side of the load receiving hopper 1, and the through hole 6 is connected to the input port of a sample shooter 8. A sample cup 9 having an opening at the bottom is slidable on the sliding plate 7 and reciprocally movable by a cylinder 10 between the discharge port of the load receiving hopper 1 and the input port of the sample shooter 8. The capacity of the sample cup 9 for one time is, for example, 200 g
And

Reference numeral 11 denotes a sample replenishing cylinder that is attached to the sample collecting mechanism 5 and accommodates the grain discharged from the cargo receiving hopper 1 as a replenishing sample. In this sample replenishing cylinder 11,
An open / close valve 12 that can be opened and closed is provided at the discharge port, and a sample overflow port 13 is opened.

Reference numeral 14 denotes a sample transport path for guiding the samples discharged from the sample shooter 8 and the cylindrical body 11 to the weighing container 15, and a sample input port for inputting a sample collected by another
Have 16.

The weighing container 15 has a weighing box 17 for accommodating and weighing a sample as shown in FIG. 3, one side surface of the weighing box 17 is opened, and a vertically movable control valve is provided in the opening.
18 is provided. The control valve 18 is integrally connected to the lower end of a female screw cylinder 19, and the female screw cylinder 19 is screwed by a screw rod 20 which is positionally fixed and rotatable. Therefore, this male thread rod 20
The rotating operation of the control valve 18 allows the control valve 18 to move up and down.

An open / close valve 21 is provided at the bottom of the weighing box 17, and the bottom of the weighing box 17 is covered by a shooter 22.
Connect to 23. Further, a sample that overflows the upper end surface of the control valve 18 of the weighing box 17 and overflows to the outside is collected in the hopper 25 through the shooter 24.

A switching valve 26 is provided at a branch point of the shooter 23, one discharge port of the shooter 23 is connected to a transport device 27 that transports a sample to a sample dryer, and a sample box 28 is disposed at the other discharge port. To do.

In the above embodiment, the sample collecting mechanism 5 and the sample replenishing cylinder 11 are provided at the discharge side of the load receiving hopper 1, that is, at the supply port of the weighing hopper 3, but they are provided at the discharge port of the weighing hopper 3. Of course it is good.

Next, an operation example of the embodiment configured as described above will be described with reference to the drawings.

Now, when the weighing in the weighing hopper 3 is started, the opening / closing valve 2 of the load receiving hopper 1 is opened, and the grains fall into the weighing hopper 3.

Along with this, as shown in FIG. 2, the sample cup 9 advances to the discharge port of the load receiving hopper 1 shown by the dotted line, and a part of the falling grain is sampled. When the sampling is completed, the sample cup 9 returns to the inlet of the sample shooter 8 shown by the solid line, and the sample in the sample cup 9 is introduced into the sample shooter 8 from the open bottom. The loaded sample is stored in the weighing box 17 of the weighing container 15 via the sample transport path 14.

Here, it is assumed that the sample cup 9 makes five reciprocations at equal intervals, for example, during the time until the weighing hopper 3 becomes full and reaches the quantitative state (for example, 200 kg), and samples are taken.

On the other hand, a part of the grain falling into the weighing hopper 3 is stored in the sample replenishing cylinder 11 as a replenishing sample, and when a predetermined amount is stored up to the overflow port 13, the replenishing sample stored thereafter is The overflow port 13 overflows into the weighing hopper 3.

Next, when the weighing hopper 3 becomes full and the opening / closing valve 2 of the load receiving hopper 1 is closed, the opening / closing valve 12 of the sample replenishing cylinder 11 is closed.
Is opened and the replenishment sample in the cylindrical body 11 falls into the weighing box 17 of the weighing container 15.

By the way, the sample storage capacity of the sample cup 9 is now 20
The control valve 18 is set to 0 g, so that when the amount of sample stored in the weighing box 17 of the weighing container 15 reaches 1000 g, it overflows further.
Is set.

Under these conditions, when the weighing hopper 3 is weighed in a full state, the weighing box 17 is full with the sample collected only by the sample cup 9, so that the sample falling from the sample replenishing cylinder 11 is All are overflowed from the weighing box 17 and collected in the hopper 25.

On the other hand, when the load is small and the weighing hopper 3 is weighed without being full, the weighing box 17 is not full with only the sample collected by the sample cup 9, and the shortage is the sample replenishing cylinder. It is replenished with the replenishment sample that drops from 11, and when it is full, the remaining sample overflows from the weighing box 17 and is collected in the hopper 25.

Therefore, the weighing box 17 of the weighing container 15 becomes full regardless of the size of the sample collected by the sample cup 9, and as a result, a predetermined amount of sample is always obtained.

In this way, the quantitative sample weighed in the weighing container 15 is
When the on-off valve 21 is opened, it is transported to the sample dryer by the transport device 27 and dried.

(Effect of the invention) As described above, in the present invention, the sample replenishing cylinder is additionally provided in addition to the sample collecting mechanism for collecting with the sample cup,
Since a predetermined amount of the replenishment sample is accommodated in the cylindrical body, when the connected measuring container lacks the sample, the shortage can be replenished to the measuring container with the replenishing sample. Therefore, it is possible to secure a sample of a substantially constant container regardless of the amount of grain received, and thus to optimize the voluntary inspection.

Further, in the present invention, since the sample replenishing cylinder having a simple structure is adopted as the means for collecting the replenishing sample, the entire structure is extremely simplified and the manufacturing cost thereof can be reduced.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a sample collecting mechanism, and FIG. 3 is an enlarged sectional view of a weighing container. 1 is a receiving hopper, 3 is a weighing hopper, 5 is a sample collecting mechanism, 9 is a sample cup, 11 is a sample replenishing cylinder,
13 is the overflow.

Claims (1)

[Claims] 1. A sample hopper having a weighing hopper for weighing the amount of the received grain by a fixed amount, and a sample collecting mechanism for sampling the voluntary test sample by a fixed number of times with a sample cup at a position looking into the supply port or the discharge port of the weighing hopper. At the same time, a sample replenishing cylinder for accommodating a replenishing sample is installed in the sample collecting mechanism, and both discharge sides of the sample collecting mechanism and the sample replenishing cylinder are connected to a weighing capacity for measuring a substantially constant sample capacity. However, the sample container for voluntary verification is equipped with an on-off valve in the measuring container.