JP6051945B2 - Steel strip coil packing structure - Google Patents

Description

  The present invention relates to a packing structure for a steel strip coil package.

In areas where it is not customary to handle cargo carefully, such as overseas, commodities tend to be handled violently when unloading from a ship or handling to a factory. Therefore, the packaging of the steel strip coil for export is composed of a packing paper for directly packaging the steel strip coil, and inner and outer peripheral and side protection iron plates for protecting the product from a balustrade by handling.
The purpose of the packaging is to protect the coil from dust, rust, and paddles, but when rust is exported from Japan to a normally warm area near the equator in winter when the temperature is low, it is caused by dew condensation in the ship. The occurrence of condensation rust often becomes a major problem.
Since the rusted coil cannot be used at the customer site, not only the reliability of the product is lowered, but also a delivery problem may be developed.

  In order to completely prevent dew condensation, it is conceivable to a) select a cargo ship having equipment capable of controlling the humidity inside the ship, and a) modifying the cargo ship so that the humidity inside the ship can be controlled. However, the number of cargo ships having such facilities is small, and there is no guarantee that they can always be selected in consideration of the actual transportation frequency. Cargo ship remodeling requires large-scale capital investment. As such, neither is realistic.

On the other hand, Patent Document 1 discloses a packaging structure in which a protruding portion is provided on the surface of the flange portion of the inner diameter ring on the cylindrical portion side, and the protruding portion is on the lower side.
However, since the adhesion decreases due to the presence of the protrusions, a larger amount of condensed water flows in, and the condensed water may also flow in from the gap between the inner peripheral iron plate and the side iron plate.

Japanese Patent Laid-Open No. 9-193888

  The present invention has been made in view of such circumstances, and provides a packing structure for a steel strip coil packing body that prevents inflow of water into the steel strip coil packing body and prevents rusting of the steel strip coil. For the purpose.

The gist of the present invention is as follows.
[1] Packing paper covering the inner peripheral surface, side surface and outer peripheral surface of the steel strip coil, inner peripheral surface covered with the packing paper, inner peripheral iron plate protecting the side surface and outer peripheral surface, side plate and outer peripheral iron plate, the inner periphery It is composed of an iron plate and an inner-diameter metal that presses and fixes the side plate, a sponge tape is interposed between the packing paper and the inner peripheral iron plate, and a drainage metal presses and fixes the sponge tape and the side plate. A packing structure for a steel strip coil packing body, which is provided.
[2] A step of covering the inner peripheral surface and side surfaces of the steel strip coil with packing paper, a step of attaching sponge tape to a part of the inner peripheral surface covered with the packing paper, and a side plate covering the packing paper with the packing paper A step of protecting the side surface, a step of pressing and fixing the sponge tape and the side plate with a draining gold, and an inner peripheral surface covered with the packing paper by an inner peripheral iron plate and held down by the draining gold A method for packing a steel strip, which includes a step of protecting the inner peripheral iron plate, the drainage gold and the side plate by means of an inner diameter gold and pressing and fixing the side plate.

  According to the present invention, it is possible to prevent water from flowing into the steel strip coil package. And the rust generation | occurrence | production of the steel strip coil by the inflow of water can be prevented. As a result, stable delivery to customers is possible.

Cross-sectional view of the main part showing the packaging structure of the present invention Cross-sectional view of the main part showing the packing structure of the present invention after packing is completed External perspective view of conventional steel strip coil package Sectional view of the main parts of a conventional steel strip coil package

This will be described in detail below.
First, the present inventors examined in detail the flow path of water into the steel strip coil packaging. FIG. 3 is an external perspective view of a conventional steel strip coil package (hereinafter simply referred to as a package), and FIG. As shown in FIG. 3 and FIG. 4, the conventional packing body includes a packing paper 1 covering an inner peripheral surface, a side surface, and an outer peripheral surface (not shown) of the steel strip coil, an inner peripheral surface covered with the packing paper 1, The inner peripheral iron plate 2, the side plate 3, and the outer peripheral iron plate (not shown) for protecting the side surface and the outer peripheral surface, the inner peripheral iron plate 2 and the inner diameter abutment 4 for pressing and fixing the side plate 3 are configured. In such a configuration, dew condensation water accumulates in the inner periphery lower part of the steel strip coil, and it is unavoidable that the water enters the inside of the packing body through the gap between the overlapping portion of the inner diameter metal plate 4 and the inner peripheral steel plate 2. In particular, water flows into the steel strip coil from a slight seam opening or tear of the packing paper 1 and accumulates in the lower part of the inner diameter, leading to rusting of the steel strip coil.

Based on the above examination results, a packaging structure effective in preventing the inflow of water into the steel strip coil packaging was devised. FIG. 1 and FIG. 2 are cross-sectional views showing the main part of the packing structure of the steel strip coil packing body of the present invention. FIG. 1 is a cross-sectional view of the main part before packing, and FIG. As shown in FIG. 1 and FIG. 2, the packing body of the present invention includes a packing paper 1 covering an inner peripheral surface, a side surface, and an outer peripheral surface (not shown) of the steel strip coil, and an inner peripheral surface covered with the packing paper 1. The inner peripheral iron plate 2, the side plate 3, and the outer peripheral iron plate (not shown) for protecting the side surface and the outer peripheral surface, the inner peripheral iron plate 2 and the inner plate 4 for pressing and fixing the side plate 3, and the sponge tape 5 Is interposed between the packing paper 1 and the inner peripheral iron plate 2, and the drainage allowance 6 is provided so as to press and fix the sponge tape 5 and the side plate 3.
As described above, in the present invention, the adhesiveness between the inner diameter abutment 4, the inner peripheral iron plate 2, and the drainage abutment 6 is improved by the interposition of the sponge tape 5. Further, due to the interposition of the sponge tape 5, the contact portion between the inner diameter metal plate 4 and the inner peripheral iron plate 2 and the contact portion between the inner peripheral iron plate 2 and the drainage metal plate 6 are more than in the central portion of the inner peripheral iron plate 2 in the plate width direction. The water accumulated in the lower part of the inner periphery of the steel strip coil is less likely to enter the contact portion between the inner diameter metal plate 4 and the inner peripheral iron plate 2 and the contact portion between the inner periphery iron plate 2 and the drainage metal 6. Further, when water is infiltrated from between the inner diameter metal plate 4 and the inner circumferential steel plate 2 by fixing with the drainage metal 6, the water packing paper is brought into close contact with the inner circumferential iron plate 2 and the drainage metal 6. Reaching 1 can be prevented. As a result, the infiltration of water is prevented, and water is discharged from the inside of the inner diameter tap 4 and the drainage tap 6 to the side surface of the steel strip coil.

The sponge tape 5 used in the above is not particularly limited as long as it is soft and cushioning and has a function of improving the adhesion between the inner diameter metal plate 4, the inner peripheral iron plate 2, and the drainage metal plate 6. Absent. The thickness is preferably 2 to 10 mm before the mounting of the inner diameter deposit, that is, before completion of packing, for the purpose of surely improving the adhesion. More preferably, it is 3-5 mm.
And what the thickness after packing is about 1 mm-2 mm is preferable. By setting the thickness after packing to 1 mm to 2 mm, the total thickness with the drainage allowance 6 is about 2 mm or more thicker than the thickness of the central portion of the inner peripheral iron plate 2, so that it is in a high state. it can. By setting it as such a state, water is immediately discharged | emitted out of the system along the draining allowance 6, and water does not accumulate in the contact part of the inner diameter allowance 4 and the inner peripheral iron plate 2. FIG.
From the viewpoint of improving adhesion, the width of the sponge tape 5 is preferably 50 mm or more that can cover the entire width of the contact portion between the inner diameter metal plate 4 and the inner peripheral iron plate 2 and the contact portion between the inner peripheral iron plate 2 and the drainage metal plate 6. . More preferably, it is 95 mm or more. 200 mm or less is preferable from the viewpoint of workability.

  As the drainage metal 6 used in the above, a cold-rolled steel plate, a galvanized steel plate, or the like can be used. In order to secure the contact area with the inner peripheral iron plate, the width is preferably 30 to 50 mm, and the plate thickness is preferably 0.8 mm or less because the adhesiveness is reduced when it exceeds 0.8 mm.

  As the inner peripheral iron plate 2 used in the above, a cold rolled steel plate, a galvanized steel plate or the like can be used. The plate thickness is preferably 0.3 to 0.8 mm for reasons of economics of the packaging material and ease of adapting to the inner periphery.

  As the side plate 3 used in the above, a galvanized steel plate or the like can be used. The plate thickness is preferably 0.4 to 0.8 mm for reasons of economy of packaging materials and prevention of dents during handling.

  As the inner diameter allowance 4 used in the above, a cold-rolled steel plate, a galvanized steel plate or the like can be used. The width is preferably 30 to 40 mm for reasons of dents at the time of handling, and the plate thickness is preferably 1.0 mm or less because the adhesiveness decreases when the thickness exceeds 1.0 mm.

  In the steel strip coil package of the present invention described above, the sponge tape is attached to a part of the inner peripheral surface covered with the packing paper, and the step of covering the inner peripheral surface and the side surface of the steel strip coil with the packing paper A step of protecting the side surface covered with the packing paper by a side plate, a step of pressing and fixing the sponge tape and the side plate with a drainage gold, and the drainage covered with the packing paper by an inner peripheral iron plate It can be manufactured from a step of protecting the inner peripheral surface held down and fixed by use of an application metal and a step of pressing and fixing the inner peripheral iron plate, the drainage application plate and the side plate by an inner diameter application.

(Example of the present invention)
The cold-rolled steel sheet coil for automobile outer plates was packed based on FIGS. 1 and 2 to obtain a steel strip coil package. In FIGS. 1 and 2 , the thickness of the sponge tape 5 is 3 mm before packing, 1 mm after packing, and the width is 95 mm. The drainage metal 6 has a width of 50 mm, a plate thickness of 0.8 mm, and a cold-rolled steel plate. The inner peripheral iron plate 2 has a plate thickness of 0.3 mm and is made of a cold-rolled steel plate. The side plate 3 has a plate thickness of 0.4 mm and is made of a galvanized steel plate. The inner diameter gold 4 has a width of 40 mm, a plate thickness of 1.0 mm, and a cold-rolled steel plate. The steel strip coil package was left for 3 months to confirm the effect of suppressing rust generation. In addition, the rust generation rate was calculated | required by the rust generating coil / the number of shipped coils) x100%. The rust generation rate was 0.9%.

(Comparative example)
On the other hand, as a comparative example, a cold-rolled steel sheet coil for automobile outer plates similar to the above-described example of the present invention was packed based on FIG. 4 to obtain a steel strip coil package. In FIG. 4 , the components other than the sponge tape 5 and the drainage allowance 6 are the same members as in the present invention example. In the same manner as the example of the present invention, it was left for 3 months to confirm the effect of suppressing the generation of rust. The rust generation rate was 10.7%.
From the above results, the rust generation rate in the inventive example was reduced by 9.8% compared to the comparative example.

  From the above results, the rust generation rate in the inventive example was reduced by 9.8% compared to the comparative example.

DESCRIPTION OF SYMBOLS 1 Packing paper 2 Inner circumference iron plate 3 Side plate 4 Inner diameter allowance 5 Sponge tape 6 Drainage allowance

Claims (2)

Packing paper covering the inner peripheral surface, side surface and outer peripheral surface of the steel strip coil, inner peripheral surface covered with the packing paper, inner peripheral iron plate protecting the side surface and outer peripheral surface, side plate and outer peripheral iron plate, the inner peripheral iron plate and the Consists of an inner diameter pad that presses and fixes the side plate,
Comprising a sponge tape interposed between the inner peripheral iron before and Symbol packaging paper, and the sponge tape and drainage provisions fixed by pressing the side plates was 1mm~2mm thickness after packing completion,
The sponge tape, wherein the inner diameter losses and the contact portion and the inner peripheral iron of the inner peripheral iron provided on the entire width of the contact portion of the drainage losses, contact portions of the inner peripheral iron before and Symbol inner diameter losses And the contact portion between the inner peripheral iron plate and the drainage metal is higher than the central portion of the inner peripheral iron plate in the plate width direction , and the inner peripheral metal plate, the inner metal plate, the drainage metal, and the packaging of the steel strip coil pack, characterized in that the fixed holding the side plates. The process of covering the inner peripheral surface and side surface of the steel strip coil with packing paper
Attaching a sponge tape that covers the entire width of the contact portion between the inner peripheral iron plate and the inner peripheral iron plate and the contact portion between the inner peripheral iron plate and the drainage gold to a part of the inner peripheral surface covered with the packing paper; ,
A step of protecting the side surface covered with the packing paper by a side plate;
The losses for the drainage, the step thickness of the sponge tape before packing completion so that a 2 mm to 10 mm, for fixing the pressing the sponge tape and said side plate,
By the inner steel plate, a step of protecting an inner circumferential surface which is kept fixed by the drainage losses covered by the packaging paper,
Wherein the inner diameter of losses, so that the contact portion of the contact portion and the inner peripheral iron and the drainage losses of the inner peripheral iron and the inner diameter losses is higher than the center portion of the inner peripheral iron sheet in the sheet width direction And a step of pressing and fixing the inner peripheral iron plate, the drainage metal, and the side plate.

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