JP3496892B2 - Packing structure of steel coil - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging structure for high quality steel sheet coils in which rusting, deformation, etc. are not permitted.

[0002]

2. Description of the Related Art High-quality steel sheet coils used as materials for canned cans, etc. are used in the packaging process after manufacturing in order to prevent deformation / damage during transportation, rust prevention, and moisture prevention. The surface and both end surfaces must be packed without any gaps. In this packing work, after covering the outer peripheral surface and both end surfaces of the hollow steel plate coil with paper or an iron plate, as shown in FIG. 15, the inner diameter of the steel plate coil (30) is a cylindrical inner peripheral iron plate. (31) is inserted, the inner diameter rings (32) are further fitted on the inner diameter sides of both ends of the inner peripheral iron plate (31), and then the entire steel plate coil is hooped by a steel plate band (not shown) to complete the process.

[0003]

However, in the above packaging structure, since the inner diameter ring (32) and the inner peripheral iron plate (31) are locked only by the frictional force, the steel sheet band is hooped before being hooped. When a shock or the like is applied to the coil (30), the inner diameter ring (32) may be displaced or the inner diameter ring (32) may fall off. In this way, if the inner diameter ring (32) is displaced or comes off, the hoop hooking work cannot be smoothly carried out.

On the other hand, the inner diameter of the inner circumference iron plate and the outer diameter of the inner diameter ring are set to the minimum fitting tolerance in order to tightly fit the inner diameter ring to the inner circumference iron plate. For this reason,
Even if the pushing direction is slightly deviated, the inner diameter ring cannot be fitted into the inner peripheral iron plate, and the work efficiency deteriorates.
In addition, this problem becomes a major obstacle in automating the packing work that has been highly demanded in recent years.

Therefore, it is an object of the present invention to provide a steel plate coil packaging structure in which the inner diameter ring and the inner peripheral iron plate can be firmly connected and the inner diameter ring can be easily fitted into the inner peripheral iron plate. .

[0006]

[Means for Solving the Problems] To achieve the above object,
In the present invention, a pair of a cylindrical inner peripheral iron plate that covers the inner diameter portion of the steel plate coil, a pair of cylindrical portions that are pressed into the inside of both ends of the inner peripheral iron plate and a flange portion that abuts one end surface of the steel sheet coil. In a packaging structure of a steel plate coil having an inner diameter ring, an inner peripheral surface of the inner peripheral iron plate is formed with an annular convex portion at a portion overlapping with the cylindrical portion of the inner diameter ring, and an outer peripheral surface of the cylindrical portion of the inner diameter ring. In addition, an annular concave portion that can be engaged with the annular convex portion is provided.

It is preferable that the tip end portion of the cylindrical portion of the inner diameter ring is gradually reduced toward the tip end side so that the tip end diameter of the cylindrical portion is smaller than the inner diameter of the inner peripheral iron plate.

[0008]

In the inner peripheral surface of the inner peripheral iron plate, an annular convex portion is formed at a portion overlapping with the cylindrical portion of the inner diameter ring, and the outer peripheral surface of the cylindrical portion of the inner diameter ring can be engaged with the annular convex portion. By forming the annular concave portion, the annular convex portion and the annular concave portion are engaged with each other when the cylindrical portion of the inner diameter ring is pushed toward both inner diameter sides of the inner peripheral iron plate. Therefore, it becomes possible to firmly connect the inner diameter ring and the inner peripheral iron plate to the extent that they can withstand impacts and the like.

Further, since the tip end portion of the cylindrical portion of the inner diameter ring is gradually reduced toward the tip end side and the tip end diameter of the cylindrical portion is made smaller than the inner diameter of the inner peripheral iron plate, the inner diameter ring can be easily inserted. It can be fitted into the peripheral iron plate. That is, even if the tip of the inner diameter ring is roughly inserted into the inner diameter portion of the inner peripheral iron plate,
Further, if the inner diameter ring is pushed in, the tip end portion of the inner diameter ring is guided to the inner peripheral surface of the inner peripheral iron plate, so that the pushing direction is stabilized.

[0010]

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

FIG. 1 shows an overall view of an inner peripheral iron plate (2) and an inner diameter ring (3) which are packing materials for the steel plate coil (1).

As shown in the figure, the inner peripheral iron plate (2) has a cylindrical shape, and beads (5) are formed at both ends of the outer peripheral surface along the circumferential direction. As shown in FIG. 2, the bead (5) has an annular protrusion (7) formed on the inner peripheral portion and an annular recess (6) formed on the outer diameter portion.

FIG. 3 (a) shows a forming apparatus for the inner peripheral iron plate (2). This device comprises a urethane roll (9) and an iron roll (10), which are arranged parallel to each other,
An annular groove (11) is formed at both ends of the outer peripheral surface of the iron roll (10). When a rectangular iron plate (12) is passed between the urethane roll (9) and the iron roll (10) that are in close contact with each other, the iron plate (12) curls with the iron roll (10) side as the inner diameter, and the iron plate (12 ) Is in contact with the concave groove (11) and protrudes inward to form a bead (5) having an annular convex portion (7) in the inner diameter portion. At this time, FIG. 3 (b)
As shown in, both ends of the inner peripheral iron plate (2) are overlapped by a certain width. In addition, both rolls (9) (1
The diameter of (0) is selected so that the outer diameter of the inner peripheral iron plate (12) (the outer diameter of the bead (5)) is slightly smaller than the inner diameter of the steel plate coil (1).

The inner diameter ring (3) has a cylindrical portion (14) and an outer surface of a cap (described later) that covers both end surfaces of the steel plate coil (1) when the steel plate coil (1) is fitted. The cylindrical portion (14) and the flange portion (15) are integrally formed by pressing or the like. The inner peripheral iron plate (2) is provided in the cylindrical portion (14).
In the same way as with, the outer diameter portion has an annular recess (17),
A circumferential bead (1) having an annular convex portion (18) on the inner diameter
6) has been formed. A portion of the cylindrical portion (14) closer to the tip than the bead (16) has a taper shape in which the diameter gradually decreases toward the tip, and the outer diameter of the tip of the tapered portion is the inner peripheral iron plate. It is smaller than the inner diameter of (2).

A concrete packing procedure of the steel sheet coil (1) will be described below with reference to FIGS. 5 to 13.

First, as shown in FIG. 5, a cylindrical inner peripheral board (20) having a large number of cuts at both ends is inserted into the inner diameter hole of the steel plate coil (1), and the inner peripheral boat (2
The side boats (21) are fitted into both ends of (0) so that they are in close contact with both end faces of the steel plate coil (1). After that, the notch of the inner peripheral board (20) is spread, and the spread portion is bonded to the side board (21) by means of hot melt or the like.

The outer peripheral paper (22) and the outer peripheral board (23) are overlapped and adhered, and this is wound around the outer peripheral surface of the steel plate coil (1) with the outer peripheral paper (22) inside as shown in FIG. . At this time, the width of the outer peripheral board (23) is made equal to the width of the steel plate coil (1), and the width of the outer peripheral paper (22) is made slightly larger than the width of the steel plate coil (1).

As shown in FIG. 7, the steel plate coil (1)
The outer peripheral paper (22) protruding at both ends of the sheet is folded inward, and this is adhered to the side board (21) by means of hot melt or the like.

As shown in FIG. 8, the steel plate coil (1)
Attach the edge board (24) to both ends of the.

As shown in FIG. 9, the steel plate coil (1)
An outer peripheral iron plate (25) is wound around the outer peripheral surface of the, and the boundary between the outer peripheral iron plate (25) and the edge board (24) is closed with a sponge tape (26) coated with an adhesive on both sides.

As shown in FIG. 10, a steel plate coil (1)
Cover both ends of the cap (27) with this cap (27)
Is fixed with the sponge tape (26).

Thereafter, as shown in FIG. 11, the inner peripheral iron plate (2) was inserted into the inner diameter portion of the steel plate coil (1), and the
As shown in 12, insert the inner diameter ring (3) into the inner diameter hole of the steel plate coil (1) from both sides. At this time, as described above,
Since the inner peripheral iron plate (2) has a diameter slightly smaller than the inner diameter hole of the steel plate coil (1), it can be easily inserted. In addition, since a tapered portion is provided at the tip of the cylindrical portion (14) of the inner diameter ring (3) and the outer diameter of the tip portion is made smaller than the inner diameter of the inner peripheral iron plate (2), the inner peripheral portion of the cylindrical portion (14) is Even if it is roughly inserted into the inner diameter portion of the iron plate (2), if the inner diameter ring (3) is further pushed in, the tip of the cylindrical portion (14) will be the inner circumference iron plate (2) as shown in Fig. 14 (a). It is slidably contacted with the inner peripheral surface of and guided by this.
Therefore, the pushing direction is stabilized, and the inner diameter ring (3) can be pushed in smoothly. Further, even if the inner diameter ring (3) is roughly inserted in this way, the inner diameter ring (3) can be smoothly pushed into the steel plate coil (1), so that the mounting process of the inner diameter ring (3) can be easily automated.

When the inner diameter ring (3) is further pushed in,
As shown in 14 (b), the annular convex portion (7) provided on the inner peripheral surface of the inner peripheral iron plate (2) and the cylindrical portion (14) of the inner diameter ring (3).
It engages with an annular recess (17) provided on the outer peripheral surface. As a result, the inner diameter ring (3) and the inner peripheral iron plate (2) are firmly connected, so that it is possible to reliably prevent the inner diameter ring (3) from being displaced or dropped. At this time, the inner peripheral iron plate (2)
Is slightly expanded by the fitting pressure of the inner diameter ring (3) and comes into close contact with the inner diameter hole of the steel plate coil (1).

The inner diameter ring (3) is temporarily fixed to the cap (27) using a tape or the like. After that, as shown in FIG. 13, a plurality of steel plate bands (28) are passed through the inner diameter holes of the steel plate coil (1) and are drawn around the outer peripheral surface to join both ends (hooping), and the steel plate coil (1) is then attached. The packing work is completed by binding.

In the above procedure, the steel plate coil (1)
The case where the outer peripheral surface, the inner peripheral surface, and both end surfaces are packed has been described, but the scope of application of the present invention is not limited to this. For example, it is sufficient if at least the inner peripheral surface of the steel plate coil (1) is covered with the inner peripheral iron plate (2), as in the case of inserting a rod-shaped member into the inner diameter hole of the steel plate coil (1) and lifting it. If so, packaging of either or both of the outer peripheral surface and both end surfaces may be omitted.

[0026]

As described above, according to the present invention, an annular convex portion is formed in a portion of the inner peripheral surface of the inner peripheral iron plate that overlaps the cylindrical portion of the inner diameter ring, and the cylindrical portion of the inner diameter ring is formed. Since an annular concave portion that can be engaged with the annular convex portion is formed on the outer peripheral surface of the, if the annular convex portion and the annular concave portion are engaged with each other, the inner diameter ring and the inner peripheral iron plate can withstand impacts and the like. It is possible to connect them as firmly as possible. Therefore, as compared with the conventional product, more reliable packaging is possible, and it is possible to reliably prevent deformation of the steel sheet coil and generation of rust.

Further, since the tip end portion of the cylindrical portion of the inner diameter ring is gradually reduced toward the tip end side and the tip end diameter of the cylindrical portion is made smaller than the inner diameter of the inner peripheral iron plate, the inner diameter ring can be easily inserted. It can be fitted into the peripheral iron plate, improving workability when mounting the inner diameter ring. Further, even if the inner diameter ring is roughly inserted, it can be smoothly pushed into the steel plate coil, so that the mounting process of the inner diameter ring and the entire packaging process can be automated.

[Brief description of drawings]

FIG. 1 is a perspective view of a packaging structure according to the present invention.

FIG. 2 is an axial sectional view of an inner peripheral iron plate.

FIG. 3A is a perspective view showing an inner peripheral iron plate forming apparatus;
(B) is sectional drawing of the inner peripheral iron plate shape | molded by the said shaping | molding apparatus.

FIG. 4 is an axial sectional view of an inner diameter ring.

FIG. 5 is a perspective view showing a packing process of steel plate coils, showing a state in which an inner peripheral board and a side board are mounted.

FIG. 6 is a perspective view showing a state in which a peripheral paper and a peripheral board are mounted.

FIG. 7 is a perspective view showing a state in which an end portion of the peripheral paper is folded.

FIG. 8 is a perspective view showing a state in which an edge board is mounted.

FIG. 9 is a perspective view showing a state in which an outer peripheral iron plate is mounted and a sponge tape is wound.

FIG. 10 is a perspective view showing a state in which a cap is put on the end of the steel plate coil.

FIG. 11 is a perspective view showing how the inner peripheral iron plate is mounted.

FIG. 12 is a perspective view showing a state in which an inner diameter ring is attached.

FIG. 13 is a perspective view showing a state in which the steel band is bound together.

FIG. 14 (a) is an axial cross-sectional view when the inner diameter ring is pushed into the inner diameter portion of the inner peripheral iron plate, and FIG. 14 (b) engages the annular concave portion of the inner peripheral iron plate with the annular convex portion of the inner diameter iron plate. FIG. 3 is an axial sectional view at the time.

FIG. 15 is an axial sectional view showing a conventional inner diameter ring and an inner peripheral iron plate.

[Explanation of symbols]

1 Steel plate coil 2 Inner circumference iron plate 3 inner diameter ring 7 annular protrusion 14 Cylindrical part 15 Flange 17 Annular recess

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Iwata 2-18-6 Imai Chuo-ku, Chiba-shi, Chiba Affinity Package Co., Ltd. Chiba Works (72) Inventor Shigeki Taniguchi 1 Kawasaki-cho, Chuo-ku, Chiba-shi Address Kawasaki Steel Co., Ltd. in Chiba Works (72) Inventor Yasuhiro Yamada 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. in Chiba Works (72) Inventor Fumio Furukaku 1 Kawasaki-cho, Chuo-ku, Chiba-shi Chiba Prefecture Kawasaki Chiba Works (56) References JP 58-90025 (JP, A) JP 62-287815 (JP, A) JP 4-327112 (JP, A) JP 53-8291 (JP, A) Special Table HEI 5-507256 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65B 25/14 B65D 85/66

Claims (2)

(57) [Claims] 1. A pair having a cylindrical inner peripheral iron plate that covers the inner diameter portion of the steel plate coil, a cylindrical portion that is pushed into the inside of both ends of the inner peripheral iron plate, and a flange portion that abuts one end surface of the steel plate coil. In the packing structure of the steel plate coil having an inner diameter ring of, an annular convex portion is formed at a portion of the inner peripheral surface of the inner peripheral iron plate that overlaps with the cylindrical portion of the inner diameter ring, and the outer periphery of the cylindrical portion of the inner diameter ring. A steel sheet coil packaging structure, characterized in that an annular recessed portion that can be engaged with the annular raised portion is provided on a surface thereof. 2. The inner diameter ring, wherein the tip portion of the cylindrical portion is gradually reduced in diameter toward the tip end side, and the tip diameter of the cylindrical portion is made smaller than the inner diameter of the inner peripheral iron plate.
Packing structure for the described steel coil.