JPH0321471Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a device for sampling powder and granular materials such as compounded feed from a conveyor.

[Conventional technology and problems]

In addition to compound feed, in various products,
A certain number of products are extracted and inspected, so-called sampling, to determine whether or not the desired product is being manufactured.

Conventional examples of this sampling device include those described in Japanese Utility Model Publication No. 57-4737 and Japanese Utility Model Publication No. 34-7099.

However, the former technique is manual and has the problem of not ensuring that the sample is received into the container. The latter technique involves storing samples in containers at the same pitch on the same circumference on a disk, but the collection method is scooping up with a bucket, which lacks reliability and has a complicated structure. There is.

The object of this invention is to provide a sampling device that has a simple structure, can be automated, and can perform reliable sampling in large numbers, based on the techniques of the above-mentioned conventional examples.

[Means for solving problems]

In order to achieve the above object, the sampling device of this invention includes a sampling machine capable of extracting the required amount of powder and granular material transported on a conveyor, and a sampling machine that can extract the required amount of powder and granular material from this sampling machine through a conduit. The sampling machine consists of a horizontal cylindrical body mounted on the outer surface of the side wall of the conveyor and perpendicular to the conveyance direction of the conveyor, and a columnar body moved by a cylinder inside the cylinder, which is movable in the axial direction of the cylinder and the above-mentioned sampling machine. The columnar body is provided so that it can be inserted into the powder and granular material conveyed by the conveyor through the side wall, and a sample hole of a size corresponding to the sampling amount is formed in the lower part of the columnar body with openings on both sides and the bottom surface in the conveyor conveyance direction, and the above-mentioned The collector has containers arranged on a disk at multiple stages in the same circumference and at the same pitch in the radial direction, and a motor rotates the disk intermittently at each pitch in response to sampling. and the above conduit is
The upper part thereof is connected to the lower part of the hopper which is connected to the lower opening of the cylindrical body, and the lower part is movable by a cylinder along each container in the radial direction of the disc.

[Effect]

In the sampling device of this invention constructed in this way, the cylinder of the sampling machine is driven to move the columnar body forward and backward, and as a result of the movement, the powder and granules transported on the conveyor are moved into the cylinder by the size of the sample hole. is pulled out. When the sample hole faces the hopper at the bottom of the cylinder, the sample is sent to the collector through the conduit, and the disk rotates in response to the sampling, placing it in each container in turn. samples are collected. Once all containers on the same circumference have been collected, the cylinder moves the lower part of the conduit over the circumference of the empty containers.

〔Example〕

As shown in FIG. 1, for example, a sampling tool 2 is made to be able to be taken in and out of a conveyor 1 by means of a cylinder 3, on which feeds with various combinations are being conveyed, and the conveyed material a drawn out by this sampling tool 2 is
can be fed via conduit 4 to container 6 of sample collector 5.

The conveyor 1 is a scraper conveyor in the illustrated case, but various conveyors such as a belt conveyor or a screw conveyor can be used. In the figure, 1' is a scraper that runs on a chain.

The sampling tool 2 has a columnar shape with a semi-cylindrical hole 2' formed at the bottom thereof, and is installed inside a cylindrical body 2a fixed to the outer surface of the conveyor side wall 1a. The conveyed object a enters the pipe 4, is pulled out, and falls into the conduit 4. The size of the hole 2' is made to correspond to the sampling amount.

A hopper 7 and an on-off valve 8 are interposed in the conduit 4, and the upper part serves as the hopper 4a and connects to the cylinder 2a.
It is connected to an opening on the lower surface, and the sample transport material a that falls from the opening is temporarily stored in the hopper 7, and then sent to each container 6 for each sampling by opening the valve 8. Lower part of conduit 4 (on-off valve 8
As shown in FIG. 2, the lower part is a flexible tube 12, and this tube 12 is swung by an air cylinder 13, and its lower end opening is inserted into each container 6 in the radial direction of a disk 9, which will be described later. Let me come.

The sampling collector 5 is arranged in the upper radial direction 2 of the same circumference.
Holding holes 10 are formed at equal pitches in the tiers (the inner holes 10 are omitted in Figure 1), and this disk 9 is intermittently rotated by a motor 11 in response to sampling, and the sampled objects are transferred to each container. 6 in order. In the figure, 14 is a circular rail, and 15 is a wheel running on the rail.

The embodiment is configured as described above, and now,
When the sampling signal is output, the cylinder 3 is driven, the sampling tool 2 moves forward and backward, and the conveyor 1
The conveyed object a is pulled out and dropped into the conduit 4.

During this operation, the lower end opening of the conduit 4 corresponds to an empty container 6, and the opening of the valve 8 causes the container 6 to receive a sample. Thereafter, the disk 9 is rotated one pitch by the motor 11 in preparation for the next sampling.

Thereafter, samples are sequentially stored in each container 6 in the same manner.

The means for associating the sample time with the container 6 (the means for ascertaining when the sample in the container 6 was sampled) is, for example, by assigning a number to the container 6 and writing this number in the sample time, so that it can be determined at any time. The sample and the container 6 are made to correspond to each other.

[Effect of idea]

This invention is constructed as described above, and by associating the sampling machine and the collecting machine with each other for sampling, samples are sequentially stored in each container.

Therefore, by inspecting each collected sample, the quality of the transported products can be determined all at once.

In addition, the columnar body that serves as the sampling tool has holes in its lower part that are open on both sides and the bottom surface, and the powder and granules are pulled out through these holes and fall downward, so that the columnar body cannot be rotated. instead, the sample falls into the conduit. Therefore, the structure is simple, which is advantageous for automation.

Furthermore, since the lower part of the conduit is movable in the radial direction of the disc, there is an effect that the number of storage containers can be increased.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of one embodiment of the sampling device of this invention, and FIG. 2 is an enlarged view of the main parts of the same embodiment. 1... Conveyor, 2... Sampling tool (column), 2'... Hole, 3... Cylinder, 4... Conduit,
5... Collection machine, 6... Container, 9... Disc, 11...
...Motor, 12...Flexible tube, 13...Cylinder.

Claims (1)

[Scope of utility model registration request] It consists of a sampling machine capable of extracting a required amount of the powder and granular material a conveyed on the conveyor 1, and a collecting machine 5 that sequentially collects the extracted powder and granular material from this sampling machine via a conduit 4, The machine has a horizontal cylindrical body 2a perpendicular to the conveyor transport direction attached to the outer surface of the conveyor side wall 1a, and this cylindrical body 2a
A columnar body 2, which is moved by a cylinder 3, is provided inside a so as to be movable in the direction of the cylinder axis and insertable into the granular material a conveyed by the conveyor through the side wall 1a. The sample hole 2' is formed by opening on both side surfaces and the bottom surface in the conveyor conveyance direction, and the collecting device 5 has containers 6 arranged on the disk at the same circumference, at the same pitch, and in multiple stages in the radial direction. The disk 9 is intermittently rotated by a motor 11 for each pitch in response to sampling, and the conduit 4 is connected to a hopper 4a whose upper portion is connected to an opening on the lower surface of the cylinder 2a. A sampling apparatus for powder and granular material conveyed on a conveyor, characterized in that the lower part is connected to the lower part and is movable by a cylinder 13 along each container 6 in the radial direction of the disk.