JPH0522781B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention is used as an exterior wall material, interior wall material, partition wall material, etc. of a building.
When finishing the outer or inner corners of a wall with a curved surface,
The present invention relates to a sanderch panel that can be easily bent into a curved surface from a flat plate state, and a method for manufacturing the same.

[Conventional technology and its problems]

A conventional sanderch panel has a core material such as a foamed synthetic resin filled between a pair of substantially flat outer skins such as steel plates. In order to form curved outer and inner corner portions of a wall using such a sand bench panel, it is necessary to curve the sand bench panel into a curved shape. However, when force is applied to this flat sandwich panel to bend it into a curved panel, the sandwich panel ends up being bent in two at a sharp angle, or the two outer panels become irregular. It could not be used because it deformed and the surface became uneven, and the appearance as a building material could not be maintained. Therefore, when assembling the outer corner or inner corner of the wall, as shown in Figure 12 (for the outer corner) or Figure 13 (for the inner corner), one side of the sanderch panel A should be Arrange the end surface so that it abuts the back surface of the side of the other sanderch panel A at right angles, connect the surface curves of both sanderch panels A, A with the corner metal fittings 6, and reduce the gap between the sanderch panels A, A. was hidden by the corner metal fitting 6. Therefore, with the construction method using such sanderch panels, it has not been possible to form the outer and inner corners of the wall into curved shapes. On the other hand, in recent years, buildings are required to have an elegant appearance, and exterior walls are not only composed of right-angled outer corners and inner corners and flat surfaces, but are also often composed of a combination of curved surfaces. There is also an increasing demand for sanderch panels with curved surfaces. Therefore, if an attempt was made to form the outer and inner corners of a wall into a curved surface, the only way was to use a sanderch panel that was formed into a curved panel shape from the beginning. However, the first problem with curved sanderch panels is that they are bulkier than flat sanderch panels, which is inconvenient for transportation and inventory. Furthermore, it is more difficult to manufacture curved sanderch panels in a continuous process than flat sanderch panels. For example, even though the production line at a factory is parallel, curved products must be sent, and if other equipment is adapted to handle curved outer skins, the structure becomes complicated. Also,
It is possible to manufacture curved sandwich panels using the batch method in order to accommodate various designs and site conditions. It is necessary to prepare many types of molds, bending rolls, and other equipment, and there is also the problem that productivity is lower than in continuous methods. Therefore, in the prior art, it is possible to easily assemble the outer corner portion and the inner corner portion of a curved surface using a flat sandwich panel.

[Means to solve the problem]

The first invention of the present application, a sanderch panel capable of forming a curved surface, includes a flat outer skin 1a having a substantially flat shape and capable of being bent, and a bendable surface 1a that is corrugated along the direction of forming the curved surface. It is characterized in that a flexible core material 2 is sandwiched between a flat plate-shaped outer skin 1b. In addition, in the second invention of the present application, a method for manufacturing a sanderch panel capable of being processed into a curved surface includes forming rolls 4 for forming the outer skins 1a and 1b into a substantially groove shape along the longitudinal direction.
A corrugating roll 5 is disposed on at least one of the front and rear sides, and the forming roll 4 forms the pair of outer skins 1a, 1b into a substantially groove shape along the longitudinal direction, and the corrugating roll 5 forms one of the outer skins 1b. After forming the wavy unevenness 3 on the pair of outer skins 1
A, 1b are made to face each other with their groove sides facing each other, and the core material 2 is filled between them.

[Effect]

In the first invention of the present application, one outer skin 1
The wavy unevenness 3 is applied to b. When force is applied to this sanderch panel and it is forcibly bent, the wavy unevenness 3 applied along the direction of forming the curved surface will expand or contract. This absorbs the deformation of the outer skins 1a, 1b, thereby preventing the outer skins 1a, 1b of the sanderch panel from sudden bending or irregular deformation, allowing them to be bent into smooth curved surfaces. Therefore, it is possible to obtain a curved sanderch panel by bending a flat sanderch panel on-site, and it is also possible to finish it into a freely curved surface depending on the situation at the site. Moreover, since it is initially shaped like a flat plate, it is easy to manufacture the sandwich panel, and it is convenient for transportation and inventory.
Furthermore, since the other outer skin 1a has a substantially flat plate shape, by using this side facing up, the sanderch panel can be used with the same appearance as a conventional sanderch panel. Next, in the second invention of the present application, after the wavy unevenness 3 is applied to one outer skin 1b using a corrugating roll 5, the core material 2 is filled between the outer skin 1b and the other outer skin 1a. , the wavy unevenness 3 can be reliably formed on the outer skin 1b. That is, after filling the space between the outer skins 1a and 1b with the core material 2, when the outer skin 1b on the surface of the sanderch panel is pressed by the corrugation roll 5 to form the corrugated unevenness 3, the back sprig of the core material 2 causes the corrugation roll 5 to Although the wavy irregularities 3 become loose, sharp waving can be achieved by applying the wavy irregularities 3 only to the outer skin 1b.

【Example】

FIG. 1 shows an embodiment of the sandwich panel A. This is made of hard polyurethane foam, isocyanate foam, phenol foam, etc., between a pair of outer skins 1a and 1b made of metal plates such as colored galvanized iron plates, colored aluminum plates, colored aluminum-zinc alloy plated steel plates, stainless steel plates, and titanium steel plates. It is filled with a core material 2 made of synthetic resin, and on one side of the sandwich panel A, a male part 7 whose thickness becomes thinner in a stepped shape is formed over the entire length by the ends of the outer skins 1a and 1b. The male fruit part 7 is formed on the other side by the outer skins 1a and 1b.
A female part 8 into which the material can be inserted is recessed over the entire length. The outer skin 1a on the front side and the outer skin 1b on the back side are separated from each other, and the core material 2 made of hard foamed synthetic resin filled inside is adhered to the inner surfaces of the outer skins 1a and 1b by self-adhesive force. 1
a and 1b are integrated via a core material 2. Furthermore, approximately the entire surface of the outer skin 1b on the back side is provided with fine wavy unevenness 3 along the width direction of the sanderch panel A, and the grooves and protrusions of the wavy unevenness 3 extend along the longitudinal direction of the sanderch panel A. Extends the entire length in the direction. As described above, this sandwich panel A is produced in a flat plate form at a factory, and is also stocked and transported to the site in such a flat form. and. When used at an outer corner or an inner corner formed on a curved surface, it is bent on-site using a tool such as a three-roll bender 9. FIG. 2 shows a bending method when used for outer corners. The three-roll bender 9 consists of one center roll 10 and two sand rolls 11. A sand beach panel A is inserted into the gap between the center roll 10 and the side rolls 11, and the center roll 10 The sanderch panel A is pressed from the corrugated back side, and the sanderch panel A is bent between the side rolls 11 so that the front side is the outer corner side. When bending the sandwich panel A in this way, the wavy unevenness 3 on the back side shrinks and the outer skin 1a on the front side
The difference between the creepage distance of and the creepage distance of the back side is absorbed,
This prevents the substantially flat outer skin 1a on the front side from becoming uneven or deformed. Further, FIG. 3 shows a bending method when used for inner corners. In this case, the sandwich panel A is pressed by the center roll 10 from the front side and bent so that the front side becomes the inner corner side. In this case, the difference between the creepage distance of the outer skin 1a on the front side and the creepage distance on the back side is absorbed by the wavy unevenness 3 on the back side being expanded, and unevenness or deformation of the substantially flat outer skin 1a on the front side is prevented. . Note that it is natural that the degree of bending of the sandwich panel A can be changed by changing the roll diameter of the three-roll bender 9;
By adjusting the pressing force or pressing distance by the center roll 10 or the like, the degree of bending of the curved surface can be adjusted to some extent. FIG. 4 shows the sandwich panel A bent as described above and used at the outer corner of the wall. That is, this sandwich panel A
is connected to the flat sandwich panel A′ by mating the male and female side end faces, and the pillar 13
Fixed. The one shown in FIG. 5 is another example of the sanderch panel A, in which wavy unevenness 3 is applied along the longitudinal direction of almost the entire surface of the outer skin 1b on the back side. It is formed over almost the entire width of the outer skin 1b. As shown in FIG. 6, this sandwich panel A is used by being curved along the longitudinal direction. Next, a method for manufacturing the above-mentioned sandwich panel A will be explained. 7 and 8 show a schematic front view and a schematic plan view of the manufacturing apparatus.
At the starting end of this manufacturing equipment, payor reels 14, 1
5 are arranged, and outer skins 1a and 1b made of band-shaped metal plates are continuously supplied from payoff reels 14 and 15. In front of these payoff reels 14 and 15, a pair of upper and lower first stage corrugating rolls 5, forming rolls 4 and 16, and a next stage corrugating roll 5 are arranged. As shown in FIG. 9, the preceding corrugating roll 5 and the next corrugating roll 5 are composed of an upper corrugating roll 5a and a lower corrugating roll 5b, each having a large diameter portion and a small diameter portion in the axial direction. The large diameter portions and small diameter portions of the upper and lower corrugating rolls 5a and 5b are engaged with each other, and the upper and lower corrugating rolls 5a,
By passing the outer skin 1a between 5b and 5b, the outer skin 1
b is provided with wavy irregularities 3 that wave in the width direction. A preheating device 18 is arranged in front of the next stage corrugating roll 5, and an injection foaming machine 19 for injecting a foamed synthetic resin liquid is arranged in front of the preheating device 18. In front of this injection foaming machine 19, double conveyors 20, 20 facing each other vertically are arranged, and side seal conveyors 21, 21 are arranged on both sides of the double conveyors 20, 20. Furthermore, in front of the double conveyors 20, 20,
A running cutting machine 22 equipped with a band saw and a circular saw is arranged. Thus, when the outer skins 1a and 1b of the metal plates are continuously supplied from the payoff reels 14 and 15,
The corrugating roll 5 at the front stage continuously forms corrugated irregularities 3 that wave in the width direction on the upper (back side) outer skin 1b. Thereafter, the forming rolls 4 and 16 bend the both ends of the upper and lower outer skins 1b and 1a (which will be the back and front sides) toward the opposing outer skins 1a and 1b, respectively, and as shown in FIG. , 1b are shaped into a desired substantially grooved shape. At this time, the outer skin 1a on the front side may be appropriately designed with relatively shallow irregularities. Among the outer skins 1a and 1b formed by the forming rolls 4 and 16, the upper back outer skin 1b is
It is sent to the next corrugating roll 5, where it is corrugated again to form sharp wavy irregularities 3. Next, the outer skins 1a and 1b are sent to a preheating device 18 and heated to 23 to 45°C.
A foamed synthetic resin liquid is injected from an injection foaming machine 19 between the preheated outer skins 1a and 1b, and is sent to double conveyors 20 and 20, where the resin is foamed and hardened to form a synthetic resin of a predetermined thickness. It becomes chip panel A. The thickness is set to a predetermined value based on the vertical dimensions of the double conveyors 20, 20. Regarding both sides,
By continuously feeding film 23 such as aluminum foil paper, aluminum foil plastic film, etc., packing material such as EPT, foamed neoprene rubber, etc. from a coiled state to both sides, and pressing both sides with side seal conveyors 21, 21. The foamed synthetic resin liquid serving as the core material 2 is prevented from leaking. In this way, the outer skins 1a, 1b, which are conveyed by the upper and lower double conveyors 20, 20 and the side seal conveyors 21, 21 while withstanding the foaming pressure, are integrated by the foamed and hardened core material 2, and then cut by the inter-travel cutting machine 22.
sent to. Then, in the running cutting machine 22, the first
A sandwich panel A as shown in the figure is manufactured. The one shown in FIGS. 11a and 11b is a sandwich panel A of the type shown in FIG.
This is a corrugating roll 5 for applying. In the above embodiments, the outer skin is formed of a metal plate such as a steel plate or an aluminum plate, but the outer skin may also be formed of a relatively thin and bendable plastic plate. In this case, the corrugating roll can also be heated during corrugating.

【Effect of the invention】

Since the sanderch panel of the present invention is constructed as described above, when the sanderch panel is forcibly bent, the outer skin is deformed due to the wavy irregularities created along the direction of forming the curved surface. This prevents sudden bending and irregular deformation of the outer skin of the sanderch panel, allowing it to be bent into a smooth curved surface. Therefore, it is possible to obtain a curved sanderch panel by bending a flat sanderch panel on-site, and it is also possible to finish it into a freely curved surface depending on the situation at the site. Moreover, since it is initially shaped like a flat plate, it is easy to manufacture the sandwich panel, and it is convenient for transportation and inventory. Furthermore, since the other outer skin has a substantially flat plate shape, by using this side facing up, the sanderch panel can be used with the same appearance as a conventional sanderch panel.
Next, regarding the manufacturing direction of the present invention, it is possible to easily manufacture the sanderch panel that can be processed into a curved surface, and it is possible to ensure sharp corrugation on the outer skin without receiving back spring from the core material. It can be done.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing one embodiment of the sanderch panel of the present invention, Fig. 2 is a sectional view showing a method of processing the above sanderch panel into a curved surface for outer corners, and Fig. 3 is the same as the above. Fig. 4 is a sectional view showing a method of processing the above sanderch panel into a curved surface for the inner corner, Fig. 4 is a sectional view showing the above sanderch panel applied to the outer corner, and Fig. 5 is a cross-sectional view showing a method of processing the sanderch panel of the present invention into a curved surface for the inner corner. A partially broken perspective view showing another example, No. 6
The figure is a schematic perspective view showing a state in which the above sanderch panel has been curved, Figures 7 and 8 are side views and plan views showing a method of manufacturing the sanderch panel shown above, and Figures 9a and b are the same as above. 10 is a sectional view showing the front and back outer skins before being filled with core material, and FIG. 11 is a,
b is a side view and a perspective view showing another example of the corrugating roll, and FIGS. 12 and 13 are sectional views of the conventional example. 1a, 1b...outer skin, 2...core material, 3...wavy unevenness, 4...forming roll, 5...corrugating roll.

Claims (1)

[Claims] 1. Between a bendable flat outer skin having a substantially flat shape and a bendable flat outer skin having wavy irregularities along the direction of forming a curved surface. A sandwich panel capable of being curved and formed by sandwiching a flexible core material between the sandwich panels. 2. A curved surface machinable device according to claim 1, characterized in that the outer skin is formed of a metal outer skin such as a steel plate or an aluminum plate, and the core material is formed of a foamed synthetic resin such as a hard polyurethane foam. Sandwich panel. 3. The curved surface according to claim 1, wherein the outer skin is formed of a relatively thin and bendable plastic outer skin, and the core material is formed of a foamed synthetic resin such as a hard polyurethane foam. Machinable sandwich panel. 4. A corrugating roll is disposed at least one side before or after a forming roll that forms the outer skin into a substantially groove shape along the longitudinal direction, and the pair of outer skins is formed into a substantially groove shape along the longitudinal direction by the forming roll. At the same time, after forming wave-like undulations on one of the outer skins using a corrugating roll, the pair of outer skins are faced with their groove sides facing each other, and a core material is filled between the two outer skins. How to make German chip panels.