JP2972088B2 - Packaging method for cut metal plate and skid plate for stacking the cut plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for packaging a cut metal plate and a skid plate for stacking the cut metal plates, and more particularly, to stacking a cut metal plate on a skid plate. When wrapping with a skid plate, using a heat-shrinkable film as this wrapping material and wrapping it with good workability, at the same time, a high airtightness is maintained, and a wrapping method that does not generate rust due to moisture and The present invention relates to a skid plate provided for it.

[0002]

2. Description of the Related Art Among metal products, cut sheets of a metal plate such as a steel plate are stacked on a skid plate to form a lot, and rust-proof paper is wound around the side of the lot, and the rust-proof paper is taped on the skid plate. By doing so, it is packaged and sent out to the market and the like in a state where the lot of the cut plate of the contents is kept airtight.

[0003] This packaging method is roughly classified into the following two methods.

First, one of the methods is disclosed in
46478 and JP-A-50-146479. This method is a method of packaging by utilizing the place where a polyethylene or other heat-shrinkable film shrinks under a high temperature condition under heating. Therefore, cut plates such as a metal plate are stacked on a skid plate, wrapped in a heat-shrinkable film, and subjected to heat treatment.

FIG. 3 shows an example of a packaging method using a heat-shrinkable film. As shown in FIG. 3, cutting plates 3 such as metal plates are stacked, the lot is wrapped with a heat-shrinkable film 4, and then heat-treated to shrink the film and wrap.

[0006] In this method, as is apparent, compared with the following method described below, as is apparent, the time required for packaging is almost negligible.
Workability is improved. However, from the viewpoint of airtightness, it is considerably inferior to the following method described later, and there is a problem such as deterioration of quality due to insufficient rust prevention or the like.

On the other hand, the following method is applied to FIGS.
This is a manual packaging method shown in FIG.

In this method, as shown in FIGS. 4 and 5, cutting plates 3 such as a metal plate are stacked on a skid plate 7, and rust-proof paper 5 is wound around the side of the stacked lot. Thereafter, in the wound rust-proof paper 5, the space between the rust-proof papers 5 is taped with a tape 6 a, while the space between the rust-proof paper 5 and the skid plate 7 is also taped with a tape 6 b. .

[0009] However, the following method has an advantage that the airtightness is high.
Since everything is done manually, workability is very poor.
Workability, especially tapes for packaging and unpacking
There is a problem with stripping, and such improvement is desired.

[0010]

SUMMARY OF THE INVENTION The present invention aims at solving the above-mentioned drawbacks. Specifically, the present invention relates to a method for packaging a cut metal plate stacked on a skid plate using a heat-shrinkable film. Nevertheless, the present invention proposes a packaging method capable of maintaining good airtightness and a skid plate provided for the packaging method.

That is, as described above, rust-proof paper was wound around the side of the lot in which the cutting plates were stacked, and tape was taped between the rust-proof paper and the rust-proof paper and between the rust-proof paper and the skid plate. In some cases, the airtightness of the contents can be maintained, but there is a problem in workability (for example, taping or removing the tape at the time of unpacking).

On the other hand, a packaging method in which a lot or the like is wrapped in a heat-shrinkable film and heat-treated can be easily packaged, but has poor airtightness. In particular, the adhesiveness between the heat-shrinkable film and the lot during film shrinkage is poor, and rust is generated by moisture.

The present invention provides a package using a heat-shrinkable film, which solves the above-mentioned problems.

[0014]

That is, according to the method of the present invention, an outer circumferential groove is formed over the entire periphery of the side surface of a skid plate on which a cut plate of a metal plate is stacked, and the cut plates are stacked on the skid plate. A heat-shrinkable film is placed on the stacked cutting plates, so that the end thereof reaches the outer circumferential groove of the skid plate, and then heated, so that the heat-shrinkable film is heat-shrinked. The heat-shrinkable film is brought into close contact with the outer peripheral groove of the side surface of the skid plate while being in close contact with the outer periphery of the stacked cutting plates.

The skid plate on which the cut plates of the metal plate are to be stacked is a skid plate on which the cut plates of the metal plate are stacked, and the heat shrinkage covering the stacked cut plates over the entire periphery of the side surface of the skid plate. It is characterized in that an outer peripheral groove into which the end of the film enters and is closely fixed is provided. Therefore, these means and their actions will be described more specifically with reference to the drawings.

First, FIG. 1 is an explanatory view of an example of a method of packaging a lot in which cut plates such as steel plates are overlapped by the method of the present invention, and FIG. 2 is a sectional view of the package shown in FIG.

1 and 2, reference numeral 3 denotes a cutting plate such as a metal plate, 4 denotes a heat-shrinkable film, 1 denotes a skid plate, and the cutting plate 3 is stacked on the skid plate 1. The lot consisting of the cutting board 3 is wrapped with a heat-shrinkable film 4 and then heated as in the conventional example. When heated in this manner, the film 4 shrinks and the film 4 comes into close contact with the outer periphery of the lot.

In the case of packaging in this manner, an outer peripheral groove 2 having a width of about 5 mm and a depth of about 5 mm, for example, is formed along the outer periphery of the skid plate 1, and a heat treatment is performed in this state. Of the outer peripheral groove 2
It fits inside.

More specifically, the film is wrapped with the film 4 through the outer peripheral groove 2 and, at that time, the film 4 is
The film 4 is thermally shrunk when heated even if it is packaged with some margin to the outer circumferential groove 2. For this reason, the edge of the film 4 enters the outer peripheral groove 2, and the film 4 adheres to the skid plate 1, and the airtightness can be sufficiently maintained.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
An outer peripheral groove 2 of mx depth 5 mm was formed. After cutting plates 3 were stacked on the skid plate 1 to form a lot, the outside of the lot and the outer periphery of the skid plate 1 were surrounded by a polyethylene film 4 as shown in FIG.

Even if the film 4 is simply wound on the outer surface of the lot of the cutting plate 3 on the skid plate 1 as described above, if this film is heated, the upper edge of the film 4 becomes an arrow in FIG. While being shrunk and bent in the direction, the lower edge was fitted into the outer peripheral groove 2 and shrunk and packaged as shown in FIG.

At this time, since the film 4 near the lower end of the lot shrinks along the outer peripheral groove 2 of the skid plate 1, the airtightness with respect to the contents is increased.

[0023]

As described above in detail, according to the present invention, the outer peripheral groove is formed on the side surface of the skid plate, the cut plates are stacked on the skid plate, and these cut plates are covered with the heat shrinkable film. Heat treatment. This way,
The heat-shrinkable film shrinks by this heat treatment, and the end of the film is fitted and fixed in the outer circumferential groove on the side surface of the skid plate.

Therefore, when a lot of cutting boards is wrapped with a heat-shrinkable film according to the present invention, the film shrinks along the outer circumferential groove of the skid board, so that sufficient airtightness can be maintained.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an example of a packaging mode according to the method of the present invention.

FIG. 2 is a cross-sectional view of a package after heat treatment according to the method of the present invention.

FIG. 3 is an explanatory view showing a conventional packaging method using rust-proof paper.

FIG. 4 is an explanatory diagram of FIG. 3 as viewed from above.

FIG. 5 is an explanatory view showing a packaging method using a heat-shrinkable film.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Skid board 2 Outer peripheral groove 3 Cutting board 4 Heat-shrinkable film 5 Rustproof paper 6a tape 6b tape

──────────────────────────────────────────────────続 き Continuing on the front page (72) Fumio Aoki Inventor: 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Corporation Co., Ltd. A) JP-A-1-153431 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B 5B 53/02

Claims (2)

(57) [Claims] 1. An outer circumferential groove is formed over the entire periphery of the side surface of a skid plate on which a cut plate of a metal plate is stacked, and the cut plates are stacked on the skid plate, and then the stacked cut plates are heated. The shrinkable film is covered so that the end thereof reaches the outer peripheral groove of the skid plate, and then, by heating, the heat shrinkable film is thermally shrunk,
Cutting the metal plate, wherein the heat-shrinkable film is brought into close contact with the outer periphery of the stacked cutting plates, while the end of the heat-shrinkable film is inserted into and adhered to the outer circumferential groove of the side surface of the skid plate. Board packaging method. 2. A skid plate on which cut plates of a metal plate are stacked.
A skid plate provided for stacking cut plates of a metal plate, comprising an outer peripheral groove into which an end portion of the heat-shrinkable film covering the stacked cut plates enters and is tightly fixed.