JPH0441405Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a number checking device, specifically, a piece counting device that measures the number of items packaged with a laminated film including an aluminum layer and stored in a container without opening the container. The present invention relates to a number inspection device that inspects the number of pieces without checking.

[Problems to be solved by conventional techniques and ideas]

Conventionally, there is a method for detecting whether a specified number of items are accurately stored in a container, for example, by weighing each container containing the items. This method has the problem of low work efficiency.

On the other hand, as a technology for detecting the presence or absence of goods,
For example, there is a technology (Japanese Patent Publication No. 51-26705) that irradiates an oblique light beam and uses the reflected light to search for the placement status of products in a warehouse, and a method for transporting corrugated paper that can detect magnetic fields. There is a technology related to trays (Japanese Utility Model Application No. 62-54924). However, although both of the above techniques are effective in detecting the presence or absence of an article, they are effective in detecting the presence or absence of an article. It cannot be used to inspect the number of items (also called articles).

Therefore, the purpose of the present invention is to calculate the number of articles packaged with a laminated film containing an aluminum layer and stored in a regular container in a predetermined stacked state.
It is an object of the present invention to provide a counting inspection device capable of easily, reliably, and quickly inspecting pieces under a covered state.

[Means for solving problems]

The present invention measures the number of articles packaged with a laminated film containing an aluminum layer and stored in a predetermined stacked state in a regular-shaped container (hereinafter referred to as a container) while the container is being transported while the container is covered. To provide a number inspection device for inspection, characterized in that a high frequency oscillation type proximity switch is installed in the middle of a conveyance path and can approach the top wall surface of the container being conveyed. The above objective has been achieved by this.

[Effect]

According to the number inspection device of the present invention, when a container containing packaged articles passes through a location where a high frequency oscillation type proximity switch is installed, the number inspection device determines whether a specified number of packaged articles are stored in the conveyed container. It is possible to test under covered conditions whether or not the

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a front view showing an outline of a piece counting device which is an embodiment of the present invention together with its usage mode, and FIG. FIG. 2 is a perspective view showing a packaged article for storage.

The number inspection device of this embodiment has a conveyance path 2 for conveying the containers 1 to the right in the figure, and a predetermined position in the middle of the conveyance path 2 is located close to the top wall surface of the containers 1. It is equipped with a high frequency oscillation type proximity switch 3 installed in a possible state. The number inspection device described above is suitably configured to be applied to a container 1 in which packaged articles 4 are housed in five stages and two rows as shown in FIG.
Therefore, the two proximity switches 3, 3 corresponding to the two rows of packaged articles 4 are arranged as shown by imaginary lines,
Moreover, it is arranged in a direction perpendicular to the conveying direction.

In this embodiment, the high-frequency oscillation type proximity switch 3 is a TL-type manufactured by Tateishi Electric Co., Ltd.
X10ME1 can be suitably used. This type of high frequency oscillation type proximity switch can detect a metal object within a certain distance from its detection surface, and has the ability to have a fast response speed.

Moreover, the packaged article 4 to be subjected to the number inspection in this embodiment is a flat, substantially rectangular parallelepiped article of a certain size, which is wrapped in a pillow shape using a packaging material to be described later. As described above, the packaged articles 4 are stacked in five tiers and stored in the container 1. In this case, the height of the detection surface of the high frequency oscillation type proximity switch 3 (indicated by X1 in the figure) and the height of the top surface of the packaged article 4 located at the top (X in the figure)
2)) with a maximum gap of 10 mm (X in the figure).
The position of the high-frequency oscillation type proximity switch 3 is adjusted so that only the following occurs. This gap
is the maximum range in which the proximity switch 3 can detect the top surface of the topmost packaged article when the proximity switch 3 is brought close to the top wall surface of the container 1. Note that bringing the proximity switch 3 close to the ceiling wall surface means arranging the proximity switch 3 so that its detection surface is in a constant positional relationship with the ceiling wall surface, and specifically, This means a case where the detection surface is located at a certain distance from the ceiling wall surface, a case where the detection surface is brought into contact with the ceiling wall surface, etc.

In this embodiment, the container 1 has a basis weight of
Made of 370g/ ^m2 paperboard. Furthermore, the packaging material used for packaging the above-mentioned articles stored in the above-mentioned container 1 is one that can be detected by the above-mentioned high frequency oscillation type proximity switch 3, and specifically, it is made of a 12μ polyester (PET) layer and a 6μ thick polyester (PET) layer. aluminum (Al) layer,
Furthermore, it consists of a laminated film (a laminated film including an aluminum layer) formed by laminating unstretched polypropylene (CPP) layers thereunder.

Next, the operation of this embodiment will be explained.

In the number inspection device of this embodiment, the container 1 containing the packaged articles is transported to the transport path 2 in the manner described above.
By simply moving the top from the left to the right in the figure and bringing the high frequency oscillation type proximity switch 3 close to the top wall of the container 1 on the way, the proximity switch 3 will move the top shelf into the container 1. It is instantly determined whether or not the packaged article 4 exists. This is because the height of the top surface of the topmost packaged article 4 is different between the case where the packaged articles 4 are stacked in five tiers and the case where the packaged articles 4 are stacked in four tiers. This is because if the device is installed at a height where the top surface can be detected, the top surface of the fourth tier of packaged articles 4 below cannot be detected.

Therefore, according to the number inspection device of this embodiment, for each row of packaged articles 4 stored in two rows in the container 1, it can be instantaneously checked whether or not the specified number (5) is stored. can be judged,
As a result, whether or not the number of packaged articles 4 stored in the container 1 is sufficient can be easily, reliably, and quickly checked with the lid closed (with the lid on).

Although the present invention has been specifically explained below based on embodiments, the number inspection device of the present invention is not limited to that shown in the embodiments.

For example, the high frequency oscillation type proximity switch is model TL
-It is not limited to X10ME1, and can be modified and used as long as it has the same type of functionality. Furthermore, the packaging material for the packaged goods to which the piece count inspection device is applied is not limited to those shown in the above embodiments, but may be any laminated film containing an aluminum layer with a thickness that can be detected by a high frequency oscillation type proximity switch. can be changed to

[Effect of idea]

The number checking device of the present invention can easily, reliably, and quickly check the number of items packaged with a laminated film containing an aluminum layer and stored in a container in a predetermined stacked state under covered conditions. can do.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an outline of a piece counting device which is an embodiment of the present invention, together with its usage mode;
The figure is a diagram for explaining the operation of the number inspection device, and is a perspective view mainly showing an example of a storage form of a container and packaged articles stored in the container. 1... Container, 2... Conveyance path, 3... High frequency oscillation type proximity switch, 4... Packaging article.

Claims (1)

[Scope of utility model registration request] A quantity inspection device for inspecting the number of articles packaged with a laminated film including an aluminum layer and stored in a predetermined stacked state in a regular container while the container is being covered while the container is being transported. A quantity inspection device characterized in that a high frequency oscillation type proximity switch that can be brought close to the top wall surface of the containers being transported is installed in the middle of the conveyance path.