JPS598451B2 - Method for manufacturing architectural plates with stiffening ribs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an architectural plate having a rectangular corrugated cross section and having supplementary ribs by bending a metal sheet using rolls.

When using a rectangular corrugated cross-sectional plate obtained by bending a thin metal plate with a roll or bender as a roof material or exterior wall material for a building, the temperature distribution of the plate due to sunlight is uneven. Internal stresses occur in the plane of the plate, particularly in the plane of the web in square corrugated cross-section plates.

When the plate can no longer withstand this internal stress, it suddenly protrudes out of the plane and generates noise. In addition, the original plates made of thin metal plates used to manufacture plates often have distortions, and especially when a rectangular wave cross-section plate is manufactured using an original plate with such distortions, distortion occurs in the middle part of the web in that plate. Due to this distortion, the extrusion is more likely to occur.Furthermore, as the original plate is made thinner in pursuit of economic efficiency, the extrusion becomes more likely to occur.

The object of the present invention is to provide a method for manufacturing a construction plate with supplementary ribs, which can advantageously solve the above-mentioned problems.

Next, the present invention will be explained in detail using illustrated examples.

1 to 5 show a first embodiment of the present invention, in which a square wave cross section is formed between a pair of upper and lower pullout rolls 10 and 11 in a known roll type square wave cross section manufacturing apparatus 9. A pair of rib forming rolls 6, T are arranged on both sides of each web 3 of the plate 2, each rib forming roll 6, T having a large diameter cylindrical part 12 and a small diameter cylindrical part 13; , T, the large-diameter cylindrical portion 11 and the small-diameter cylindrical portion 13 face each other with the intermediate portion of the web 3 in between.

The axes of each of the rib forming rolls 6 and T are arranged on or near a plane containing the axes of each of the pullout rolls 10 and 11, and each of the rib forming rolls 6 and 7 is rotatably attached to a holding member 15. Attached to the retaining member 1
The support beam 30 to which the wafer 5 is fixed is constructed and fixed to the frame 14 of the roll type rectangular corrugated cross-section plate manufacturing apparatus 9.

One of the pull-out rolls 10 includes a rotating shaft 16 and three large-diameter disk-shaped drive rolls 17 that are fitted and fixed to the rotating shaft 16.
and a driven roll 18 consisting of a small-diameter trapezoidal grooved roll that is rotatably fitted onto a rotating shaft 16 at the middle of each drive roll 17, and the other pull-out roll 11 has a rotating shaft 19 fitted therein. It is composed of a drive roll 20 consisting of three small-diameter trapezoidal grooved rolls fixed together, and a large-diameter disc-shaped driven roll 21 rotatably fitted on a rotating shaft 19 in the middle of each drive roll 20,
The driving device rotates one rotating shaft 16 via a driven sprocket 22, and the rotating shaft 16 rotates the other rotating shaft 19 via a driving gear 23 and a driven gear 24. The opposing circumferential surface is configured to rotate at a constant circumferential speed.

Further, the height of the upper pull-out roll 11 can be finely adjusted by a screw rod 26 fixed to the roll holding member 25 and a nut 27 screwed thereto. The original plate 1 unwound from a coil 28 wound with a thin steel plate is continuously supplied to a known roll-type rectangular corrugated section manufacturing device 9, where it is sequentially formed into a rectangular corrugated shape by multiple sets of forming rolls. When the rectangular wave cross-section plate 2 formed into a predetermined cross-sectional shape reaches between the pair of pull-out rolls 10 and 11, the end plates 4 and 5 on both sides of the unib 3 are moved between the drive rolls 17,
20 or driven rolls 18 and 21, a pair of rib forming rolls 6 and 7 bend and form a step-shaped stiffening rib 8 that extends continuously in the longitudinal direction in the middle of the web 3. . In this case, the stiffening rib 8 is bent in the middle of the web 3 while the end plates 4 and 5 on both sides in the width direction of the unib are held at a constant interval, so a large tension force acts on the web 3 and this tension The web 3 is plastically deformed by the force, and the distortion caused by the original plate in the web 3 is eliminated. FIG. 5 shows an architectural plate 2' having a square corrugated cross section with stiffening ribs thus obtained.

6 to 10 show a second embodiment of the present invention, in which a pair of pull-out rolls 10 and 11 and a pair of forming rollers in front of the pull-out rolls 10 and 11 in a known roll type square wave cross-section plate manufacturing apparatus 9 are shown. Between the roll (not shown),
Rib forming rolls 6 are placed on both sides of each web 3 of the square wave cross-section plate 2.
. They face each other across the middle part of 3.

A support member 29 that rotatably supports the rib forming rolls 6 and 7 is slidably abutted against a support beam 30 that extends in the left-right direction, that is, in the horizontal direction perpendicular to the traveling direction of the rectangular corrugated section plate 2. , the support beam 30 is constructed and fixed to the frame 14 of the roll-type square corrugated cross-section plate manufacturing apparatus 9, and a support member 31 extending in the left-right direction and a female thread member 32 are fixed to the support beam 30. One end of the threaded rod 33 is rotatably connected to the support member 29, and by rotating the screw rod 33, the left-right position of the support member 29 and the rib forming rolls 6, 7 supported thereby is adjusted. is configured so that the
Further, after the position adjustment is performed, the elongated hole extending in the left-right direction provided in the support beam 30 and the support member 29
The support member 29 is fixed to the support beam 30 by a mounting bolt 34 passing through the support member 29 . In the case of the second embodiment, the rib forming roll 6
, 7, the stiffening ribs 8 are bent and formed in the middle part of the web 3, and as in the case of the first embodiment, a building plate 22 with stiffening ribs is obtained in which the distortion caused by the original plate is eliminated.

When carrying out this invention, a plurality of stiffening ribs 8 may be formed on one web 3, and the cross-sectional shape of the stiffening ribs 8 may be a groove shape as shown in FIG. 11 or an arbitrary shape other than that shown in the drawings. It may be. According to this invention, while the end plates 4 and 5 on both sides in the web width direction of the rectangular wave cross-section plate 2 formed by roll processing are held by the rolls, the web 3
The rib-forming rolls 6 and 7 placed on both sides of the middle part of the web 3 bend the stiffening rib 8 that extends continuously in the longitudinal direction of the middle part of the web 3. The web 3 is plastically deformed by the tension force, and the distortion of the web 3 remaining from the time of the original plate can be easily and reliably erased. Therefore, the web 3 is free from distortion and the stiffening ribs 8 increase the bending rigidity. It is possible to easily produce an architectural plate with increased flexural strength, and since there is no distortion in the web 3 and the rigidity of the web 3 is enhanced by the stiffening ribs, it can be used as a roofing material or an exterior wall material of a building. Even if the temperature distribution of the plate becomes uneven due to sunlight, the web 3
Effects such as being able to prevent the material from suddenly deforming and producing noise can be obtained.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a schematic side view showing an apparatus for manufacturing architectural plates with stiffening ribs, and FIG. FIG. 3 is a front view showing the stiffening rib forming part, FIG. 3 is an enlarged view of a part thereof, FIG. 4 is a perspective view showing a part thereof, and FIG. 5 is a diagram of the obtained architectural version with stiffening ribs. FIG. 6 to 10 show a second embodiment of the present invention, in which FIG. 6 is a schematic side view showing an apparatus for manufacturing architectural plates with stiffening ribs, and FIG. A front view showing the rigid rib forming part, FIG. 8 is a perspective view showing a part thereof,
Figure 9 is a front view showing the pull-out roll part, Figure 10
The figure is a perspective view thereof. FIG. 11 is a perspective view of an architectural version with stiffening ribs of different shapes. In the figure, 1 is the original plate, 2 is the square wave cross-section plate, 2' is the architectural plate, 3 is the web, 4 and 5 are the end plates, 6 and 7 are the rib forming rolls, and 8
are stiffening ribs, 10 and 11 are pull-out rolls, 12
1 is a large diameter cylindrical part, 13 is a small diameter cylindrical part, 15 is a holding member, 2
9 is a support member.

Claims (1)

[Claims] 1 Roll processing is performed on an original plate 1 made of a thin metal plate to form a rectangular corrugated cross-section plate 2, and then, with the end plates 4 and 5 on both sides of the web 3 in the rectangular corrugated cross-section plate 2 being gripped by rolls, the web 3 is rolled. Architectural use with stiffening ribs, characterized in that stiffening ribs 8 that extend continuously in the longitudinal direction of the web 5 are bent and formed in the middle part of the web 5 by rib forming rolls 6 and 7 arranged on both sides of the middle part of the web 5. How to make the plate.