JPS6327185B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to architectural boards that are used for walls, roofs, etc. of buildings and have excellent airtightness, sound insulation, heat insulation, dimensional stability, and appearance. The present invention relates to a method for continuously manufacturing plates.

Conventional technology Conventionally, architectural boards with synthetic resin foam integrated as a core material between these face materials have been used to provide airtightness, sound insulation,
It has been widely used in buildings because of its excellent insulation properties.

However, in the production of the above-mentioned architectural boards,
For example, a continuous manufacturing method has been proposed in which a front surface material and a back surface material are introduced via a synthetic resin foam between two endless belts arranged vertically and driven in the same direction, and the two are integrated. It's here.

Problems to be Solved by the Invention However, during manufacturing, the two-sided material vibrates in a meandering manner, which causes wrinkles on the back material, which impairs the appearance.

Therefore, in the present invention, the surface material has a concave section, an inwardly bent section in which both end portions of the concave section are bent inward, and this is outwardly formed through the bent section. By making an integral shaped material consisting of a protruding protrusion and positioning both ends of the back material inside the inward fold of the surface material with the synthetic resin foam in between, the surface material at the time of manufacture is In particular, it has been found that the meandering vibration of the backing material is reduced, the outer surface is improved, and the leakage prevention of the core material is significantly improved.

However, in this case, if there is a gap between the plane that connects the outer surface of the protruding part of the facing material and the plane that connects the outer surface of the backing material, external pressure will be applied to the plane that is in contact with the outside of the concave part of the facing material. There were drawbacks such as denting of the surface material when it was applied.

Means for Solving the Problems The present invention is characterized in that a part or almost all of the outer surface of the backing material other than both ends is located on substantially the same plane as the outer surface of the protrusion, The present invention aims to provide a method for continuously manufacturing architectural boards that prevents dents in the surface material and has excellent dimensional stability and appearance.

That is, the present invention introduces a front surface material and a back surface material through a synthetic resin foam between two endless belts disposed above and below that drive in the same direction, and manufactures a construction board by integrating them. In the continuous manufacturing method, the lower endless belt has a concave section, an inward section where both ends of this concave section are bent inward, and an outer section from the inward section through the bent section. The surface material is an integrated molded material consisting of a protruding part and a protruding part, and the opening of this concave part is arranged facing upward, and a synthetic resin foam core is placed in this concave part. The back surface is characterized in that the back surface material is filled with a material, and then both ends of the back surface material are placed inside the folded portion of the surface material with a synthetic resin extrusion sandwiched therebetween, and then introduced between the upper and lower endless belts. The present invention is a method for continuously manufacturing a construction board in which a part or substantially all of the outer surface of the material other than both ends is substantially on the same plane as the outer surface of the protrusion.

Function Examples will be described below with reference to the drawings. In Figures 1 and 2, surface material A
has a cross-sectional shape consisting of a concave portion 1, inwardly bent portions 2 and 3 in which both end portions of this concave portion 1 are bent inward, and these outwards via bent portions 4 and 5. It is an integrated shaped material consisting of protruding parts 6 and 7. The material is metal such as iron, copper, or aluminum. If necessary, the surface of the plate may be embossed, painted with lysine mastic, or the like. The thickness is preferably about 0.1 to 2 mm.

The inside of the concave portion 1 of the surface material A is filled with a core material 8. The core material 8 is a synthetic resin foam such as polyurethane foam, urethane-modified isocyanurate foam, or phenol foam.

Next, the backing material B is arranged such that both ends 9 and 10 thereof are located inside the inwardly folded portions 2 and 3 of the surface material A with the core material 8 in between, and a part of the other part (as shown in FIG. case)
Alternatively, almost the entire outer surface (in the case of FIG. 2) is positioned as the convex portion 11 on substantially the same plane as the outer surfaces of the protruding portions 6 and 7. In this way, the backing material B is fixed by the core material 8 and the inner side of the inwardly folded parts 2 and 3 of the facing material A, and when introduced between two opposing endless belts, the backing material B is Meandering vibration of back material B is reduced, and back material B
This can prevent wrinkles and damage from occurring. As the back material B, paper, laminated paper, film, metal foil, etc. are used.

Effects of the Invention According to the present invention, a space formed by two opposing endless belts can be continuously manufactured using a mold. At this time, the meandering vibration of the face material, especially the back material during manufacturing, was reduced, the generation of wrinkles in the back material was prevented, and the leakage prevention of the core material was significantly improved.

Furthermore, it maintains good properties such as airtightness, sound insulation, heat insulation, dimensional stability, and appearance required for a construction board, and also improves cross-sectional strength so that the external pressure F is not applied only to the protrusions 6 and 7. , the surface material was dispersed in the convex portions 11, thereby significantly improving the strength against external pressure and preventing the surface material from becoming dented.

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory diagrams showing a cross section of a construction board manufactured according to the present invention. 1... Concave part, 2, 3... Inward folded part, 4,
5...Bent part, 6, 7...Protruding part, 8... Core material, 9, 10... Both ends, 11... Convex part, A...
Surface material, B... Back material, C... Line showing the same plane, F... External pressure.

Claims (1)

[Claims] 1. In a method for continuous production of architectural boards, in which a surface material and a back surface material are introduced via a synthetic resin foam between two endless belts arranged vertically and driven in the same direction, and these are manufactured by integrating them. , a portion having a concave cross-sectional shape on the lower endless belt, and an inwardly bent portion in which both end portions of this concave portion are bent inward;
A surface material is an integral shaped material consisting of an inwardly bent part and a protruding part that projects outwardly through a bent part, and the opening of this concave part is arranged to face upward. The concave portion is filled with a synthetic resin foam core material, and then both ends of the backing material are placed inside the folded portion of the facing material with the synthetic resin foam in between, and then the upper and lower endless belts are A method for continuously manufacturing a construction board, wherein a part or substantially all of the outer surface of the backing material other than both ends is substantially on the same plane as the outer surface of the protrusion.