KR100630858B1 - A method of forming metal roof tile with dimples - Google Patents

Abstract

A method of forming metal roofing tiles with dimples is provided to prevent the metal roofing tiles from being crushed or deformed even under upward load by forming dimples on the metal roofing tiles and form the dimples evenly and certainly by performing press forming after first forming dimples through roll forming. A method of forming metal roofing tiles with dimples comprises: a roll forming step of passing a metal sheet through forming rolls(140) to form dimples on the metal sheet; and a press forming step of press forming of the dimple formed metal sheet(150) in a roofing tile shape by a press(210), wherein the press forming step comprises a process of performing press forming in such a manner that a clearance which is at least as high as the dimples formed on the metal sheet is secured between upper and lower molds, and wherein valleys and mountains are continuously formed on the outer circumferential surface of the forming rolls in a rotational direction of the forming rollers.

Description

A method of forming metal roof tile with dimples}

1 is a perspective view showing a conventional general metal group.

Figure 2a is a schematic side view of a conventional metal group.

Figure 2b is a schematic side view of a metal tile formed with a bent portion located at the top of the conventional metal tile roof.

3 is a construction cross-sectional view of a roof using a metal tile.

Figure 4 schematically shows the manufacturing process of the metal group according to the present invention.

Fig. 5 shows the metal sheet passed through the forming roll.

Figure 6 is a perspective view of a metal group with a fine bone according to the present invention.

* Description of the main parts of the drawings *

11 cover part 12 upper hook part

13: lower hook portion 14: bent portion

20: ridge 31: tile rack

32: reinforcement 33: ridge fixing member

110: coil 120: feed roll

130: cutting machine 140: forming roll

150: metal plate formed with fine bones 210: press

 The present invention relates to a method for forming a metal machine with a fine bone, and more particularly, a roll forming step of forming a fine bone on a metal plate using a forming roll in which bone and acid are sequentially formed on an outer circumferential surface along a rotation direction, and the fine bone The present invention relates to a method of forming a metal tile with a fine bone, including a press molding step of forming a tile in a tile shape by press-processing the formed metal plate material. Therefore, it relates to a method of forming a metal machine with the fine bone is formed in the fine bone is uniformly and densely to maximize the strength reinforcement effect from the upward load.

Metal tile refers to a building material that is used as a roofing material by forming a tile shape with a metal. It may be used only as a metal, and may be used by applying powder or other materials to the shape of a tile formed with a metal.

The shape of a general metal tile is shown in FIG. 1, and includes a cover part 11 and an upper hook part 12 and a lower hook part 13 which are bent in two stages.

The metal tile is light and strong, not only easy to install, but also shortens the air during construction, thereby reducing construction costs, long life, and low maintenance costs. In particular, when the natural stone powder of various colors on the metal surface can have an excellent effect on the sound absorption and insulation.

Roof construction using the metal roof, using the construction method to install the rafters on the roof, to install a rectangular steel pipe or wood on the rafters, and to fix the metal tiles with nails on the steel pipes, etc. The construction drawings are shown in Figure 3 same.

Looking at the construction method, first install the rafters (not shown) at appropriate intervals so that one end on the slope to the eaves and the other end to the top of the roof. When the rafters (not shown) are installed perpendicular to the rafters, the roof tile hook 31 and the reinforcement 32 are installed to be parallel to the inclined surface of the roof, and the ridge fixing member 33 is installed on the top of the roof. Although the rafters are not shown in FIG. 3, the rafters are not necessarily installed, and as shown in FIG. 3, the tile racks 31 and the reinforcement 32 may be installed without the rafters. As the roof tile hook 31, the reinforcing material 32 and the ridge fixing member 33, a square steel pipe or a lumber is used. After the tile rack 31, the reinforcing material 32 and the ridge fixing member 33 are installed on the roof, the metal tile is installed from the bottom of the roof, and the upper hook portion 12 of the metal tile is positioned on the tile rack. After fixing it using a nail or the like is used. The reinforcing material 32 is located between the tile hanger 31 and the tile hanger 31 and serves to support the load of the cover portion 11.

The metal tile is installed one by one in the same manner as above, but the lower hook portion 13 is installed to cover the upper hook portion 12 coupled to the tile hook 31. Since the lower hook portion 13 of the next roof tile can be fixed in such a manner as to cover the upper hook portion 12 only after the fixing of the upper hook portion 12 is completed, the metal tile is installed upward from the bottom of the roof. It is preferable.

When the metal tile is installed in sequence to the top of the roof, the metal tile located at the top is folded up to form the bent portion 14 as shown in FIG. Fix to (33). After fixing the bent portion 14 to the sides of the ridge fixing member 33 by nails, the ridge 20 is covered and fixed. In this case, after simply placing the bent portion 14 on the side of the ridge fixing member 33, it may be possible to use a method of fixing using a nail or the like only after covering the ridge 20.

According to the conventional construction method, the worker has no choice but to step on the metal tile during the construction process. However, since the conventional metal tile is vulnerable to upward load, the operator has to pay special attention while working. There was.

In order to solve this problem, a method of forming fine bones (bones and acids) on the surface of metals and tiles has been developed. However, the conventional fine bone formation method was to allow the fine bone to be formed in the tile shape by a single pressing process. In addition to the tile shape in the upper and lower molds, the fine bone shape was formed to produce a metal tile with the fine bone shape in a single press process.

However, when using this method, there was a problem that the fine bone is difficult to form tightly to a sufficient height, there was a problem that each of the fine bone is difficult to form with a uniform size and spacing.

In addition, as in the conventional general metal tile, as shown in Figure 1, there is a large bend to have a tile shape in the lower hook portion and the upper hook portion, there was an inconvenience that must be well matched during construction.

In order to solve the above problems, the present invention aims to form a fine bone in the metal tile so that the metal tile is not crushed or deformed even in an upward load, and the first fine bone is formed through the roll forming. Since the molding is carried out, it is an object to make the fine bone more uniform and surely formed.

In addition, the upper and lower molds during the press molding to maintain the gap as much as the depth of the bone, the purpose is to be able to be formed more surely while the shape of the bone remains on the metal surface and the whole surface.

In addition, the lower hook portion is intended to have a flat state in which only the remaining bone is formed, to facilitate the construction.

In order to achieve the above object, the present invention provides a molding method of a metal machine having a fine bone, comprising: a roll forming step of forming a fine bone by passing a metal sheet between the forming rolls; A press molding step of press-molding the metal plate on which the fine bone is formed in a tile shape; Include.

More preferably, the outer circumferential surface of the forming roll, characterized in that the bone and the acid is formed continuously in the rotational direction, the press forming step, the space between the upper and lower molds as much as the height of the fine bone It is characterized by the press molding.

Hereinafter will be described in detail through the preferred embodiment shown in the accompanying drawings.

1 is a perspective view showing a conventional metal group in the prior art, Figure 6 is a perspective view showing a metal group in which the fine bone according to the present invention is formed.

Referring to Figure 6, it can be seen that the fine bone is formed on the metal tile as a whole. When the fine bone is formed, the cross section coefficient is increased, so that it becomes strong to upward load, and it is not easily crushed or deformed. It will increase the resilience.

In forming such a metal tile, when the metal plate is formed in a tile shape through a single process of press molding as in the prior art, and the fine bone is formed at the same time, it is difficult to uniformly form the fine bone at a sufficient height and interval. Therefore, it is difficult to achieve the original purpose of reinforcing strength.

In addition, since it is difficult to uniformly form the fine bone, the non-uniformity of the fine bone is generated, so that local stretching of the plate material occurs, and in the case of a plated steel sheet, cracks occur in the alloy layer, which shortens the life of the metal tile. It became.

Therefore, the fine bone is uniformly formed at a sufficient height and interval, so that the strength reinforcing effect is sufficiently generated, roll forming is first performed on the metal plate to form the fine bone as shown in FIG. It is desirable to have.

Referring to Figure 4 looks at the molding method of the metal tile with the fine bone according to the present invention.

First, the general metal plate is wound in the form of a coil 110, and the transfer roll 120 is located in front of the coil. Therefore, when the feed roll rotates at a constant speed and pulls the metal sheet, the coil 110 is rotated and the metal sheet is supplied at a constant speed.

The metal plate passed through the feed roll 120 is cut into a predetermined length by the cutting machine (130). At this time, the cutting machine 130 is preferably automatically controlled to be cut when the metal plate moves by a predetermined length.

The metal sheet cut to a certain length in the cutter 130 passes between the pair of forming rolls 140. The pair of forming rolls 140 are formed with bone and acid on the outer circumferential surface as shown in FIG. 4, and the bone portion of one forming roll is rotated while being engaged with the acid portion of the other forming roll.

Therefore, when the metal sheet passes between the forming rolls 140, the valleys and the acid are sequentially formed in the advancing direction of the metal sheet. Since the valleys and the acid formed on the outer circumferential surface of the forming roll 140 are formed perpendicular to the traveling direction of the metal plate, the longitudinal direction of the valleys and the acid formed on the metal plate is also perpendicular to the traveling direction.

As shown in FIG. 5, the metal plate member having passed through the forming roll 140 has a shape in which a fine bone is formed in the metal plate member cut to a predetermined length. 5 is a perspective view schematically showing a state in which fine bone is formed on a metal plate through a roll forming process.

The metal plate material in which the fine bone of FIG. 5 is formed is press-molded by the press machine 210 which has the metal mold | die shape | molded in the tile shape.

When the press forming step is carried out, as shown in FIG. 6, the metal tiles are formed as a whole, and the densely formed bent bones can be formed more precisely and uniformly than by forming the tile shape and the fine bones by pressing. The strength reinforcement effect can be more excellent.

However, in the press molding step, it is preferable that the molding is performed with a space equal to the height of the thigh between the upper and lower molds. If the press molding is made without a free space between the mold as in the usual case, because the fine bone formed through the roll molding is blunted to achieve the original purpose of forming the fine bone.

At this time, the mold of the press 210 is preferably formed so that the upper hook portion 12 and the lower hook portion 13 can be formed only of the uniform bone, unlike the cover portion (11). That is, the upper hook portion 12 and the lower hook portion 13 do not give a separate bend to form a tile shape in the press molding step, so that only the fine bone made through the roll molding can be preserved in the press molding step as it is. Is that. This can be easily seen by comparing FIG. 1 with FIG. With the conventional metal tile of FIG. 1, the bend formed in the cover part 11 continues to the end of the cover part 11 and continues to the lower hook part 13, but according to the present invention of FIG. 6. , Large bends for forming the tile shape continues only to a certain portion of the bottom of the cover portion (11). Therefore, only the fine bones are formed in the upper hook portion 12 and the lower hook portion 13, and as shown in FIG. 1, large bends forming a tile shape are not formed, thereby making it easy to work during construction.

The press-formed metal tile may be coated with stone powder and then coated to reduce the noise of rain or hailstones, and to produce a more advanced type of metal tile that maximizes aesthetic effect together with thermal insulation effect.

In the above embodiment, only the case where the cutting is made before passing through the forming roll is described, but the cutter 130 may be positioned behind the forming roll 140 to cut the metal plate material having the fine bone.

A summary of the effects of the present invention mentioned above is as follows.

First, the fine bone can be densely formed to a sufficient height by the forming roll, so that the cross-sectional coefficient of the metal machine is increased, thereby maximizing the strength against the upward load.

Second, since the fine bone is formed uniformly, the local stretched shape of the plate does not occur, in the case of the plated steel sheet does not cause cracks in the alloy layer, thereby extending the life of the metal group.

Third, the upper hook portion 12 and the lower hook portion does not form a large bend to form a roof tile, by having a flat state in which only uniform bone is formed, there is an effect that the construction is easy.

Claims (3)

In the molding method of the metal group with the fine bone, A roll forming step of forming a fine bone by passing the metal sheet material between the forming rolls; A press molding step of press-molding the metal plate on which the fine bone is formed in a tile shape; Including, In the press molding step, A method of forming a metal tile with a fine bone, characterized in that press molding is carried out with a clearance between at least the height of the fine bone between the upper and lower molds. The outer peripheral surface of the forming roll, according to claim 1, Metallic metal forming method and the method of forming a fine bone, characterized in that the bone and acid are formed continuously in the rotation direction. delete

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