JPH0148148B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a thermal insulation board for construction (hereinafter simply referred to as a board). In particular, the present invention relates to an apparatus capable of efficiently and beautifully manufacturing a board having a structure in which a heat insulating material made of a synthetic resin foam has a bulge extending downward from a surface base material.

Conventionally, an apparatus for manufacturing a board as shown in FIG. 1, for example, has been constructed as shown in FIG. Namely, reference numeral 1 denotes a surface base material delivery section, which comprises an uncoiler 2 and a pinch roller 3 equipped with a surface base material A, for example, a metal guide plate, and continuously feeds the surface base material A to the next process. 4 is a molding machine that molds the surface base material A as shown in FIG. 3, and 5 is a discharge section that supplies a reaction mixture 6 obtained by mixing foamable synthetic resin raw materials to the concave portion of the surface base material A. It is something. Reference numeral 7 is for laminating the backing material B on the layered mixture 6 via a guide 8 at the backing material delivery section. As the backing material, flexible materials such as kraft paper, asbestos paper, asphalt felt, or nonwoven fabrics may be laminated with one or more of them, or these sheet materials may be waterproofed or metal foil (A, Cu , Fe, Sn). Reference numeral 9 denotes a backing material forming machine which molds the backing material B as shown in FIG. A mold 10 is formed by upper and lower mold conveyors 11 and 12 as shown in FIG. 5, and the interval H between the molds corresponds to the thickness t of the board. The mold 10 rotates in the direction of the arrow as shown in FIG. 2, gradually dissolves at its exit, and forms again at its entrance. 1
3 is a cure oven that surrounds both mold members, upper and lower mold conveyors 11 and 12, and is heated to approximately 50 to 100°C.
It is a device that can heat the mold material and is mainly useful for heating mold materials and curing foamable synthetic resin. 14 is a cutter that cuts the board sent out from the cure oven 13 into a predetermined length. However, when a board as shown in FIG. 1 is manufactured using this device, the formed front base material A and back base material B are
It is difficult to maintain the relative positional relationship between the two, and the synthetic resin raw material in the middle of foaming leaks from the misaligned portion to the upper and lower conveyors 11 and 12, which not only pollutes the equipment but also wastes expensive raw materials. There were quite a lot of them. In particular, it was extremely difficult to mold the flexible back base material B and laminate it in a predetermined position.

In order to eliminate such drawbacks, the present invention aims to remove the front material A from the final roll on which the back material B is formed.
A position detection and correction mechanism is interposed between the mold entrance and the backing material forming machine so that both parts face each other at a predetermined position, preventing contamination of the equipment and effectively disposing of raw materials. This paper proposes a board manufacturing device that can be used.

An embodiment of the apparatus according to the present invention will be described in detail below with reference to the drawings. Note that parts corresponding to those in FIG. 2 are given the same numbers and symbols, and explanations are omitted. FIG. 6 is a schematic configuration diagram showing the board manufacturing apparatus according to the above invention, in which 1 is a surface base material delivery section, 2 is an uncoiler, 3 is a pinch roller, 4 is a molding machine, 5 is a discharge section, and 6 is a reaction section. mixture; 7 is a backing material delivery unit; 8 is a guide roller; 9 is a backing material forming machine;
10 is a mold, 11 is an upper mold conveyor, 12 is a lower mold conveyor, 13 is a cure oven, and 14 is a cutter. To explain further, as shown in FIG.
-1, beat roll 9-2 in the second stage, third stage ~
Forming rolls 9-3, ...9-n up to n stages, a mountain-like lower mold roll 9-E ₁ and a trough-like upper mold roll 9 at the final stage
-E ₂ , the backing material B sent out from the guide 8 is accurately guided again at the entrance of the molding machine, and sent out to the next process with a mountain-shaped cross section at the exit, and the This prevents the folded portion from spreading out. Reference numeral 15 denotes a position detection and correction mechanism constructed as shown in FIGS. 8a and 8b.
That is, it is interposed between the backing material forming machine 9 and the mold entrance, and the rollers 16, 1 for guiding and feeding are provided.
7, a transmission section (chain or gear) 18 that makes the same rotation, a detector 21 consisting of a light projector 19 and a light receiver 20, and a drive section 2 that slides the rollers 16 and 17.
2. The support body 23 of the position detection correction mechanism. To explain further, the rollers 16,
17 places the back material B immediately after molding at the entrance of the mold 10, so that the concave part of the mold 10 and the back material B face each other in the set positional relationship, and without deformation, with the upper and both side walls in a substantially vertical state. It is intended for delivery by Therefore, the friction coefficients, diameters, and rotation speeds of the rollers 16 and 17 are made to match within permissible ranges so that there is no difference in circumferential speed. The light emitter 19 is composed of a roller 19a that is always in contact with the side wall 12a of the lower mold conveyor 12 under a constant elasticity, and a light emitter 19b provided at the apex of the main axis of the roller 19a.
0 is one end of the main shaft 17a of the roller 17, and a plurality of bearings are fixed in series in a direction perpendicular to the moving direction of the lower mold conveyor 12 on the base surface 24a of a bearing 24 mounted on an extension of the projector 19. . Note that the bearing 24 is fixed to the support body 23. Further, the drive section 22 displaces the rollers 16 and 17 in the direction of the arrow in response to the signal from the light receiver 20,
The relative positional relationship between the lower mold conveyor 12 and the back material B is always corrected and maintained constant.

As described above, according to the board manufacturing apparatus according to the present invention, the molded front base material A and the back base material B are always faced to each other in a set positional relationship, thereby preventing contamination of the equipment due to leakage of the mixture 6 into the equipment. It is characterized by the ability to efficiently produce homogeneous boards without wasting any mixture.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a heat insulating board for construction, FIG. 2 is a schematic configuration diagram of a device conventionally used to manufacture the above heat insulating board,
The figure is a cross-sectional view of the front base material A and the back base material B after molding.
FIG. 5 is a cross-sectional view of the mold 10, FIG. 6 is a schematic configuration diagram showing an embodiment of an apparatus for manufacturing a thermal insulation board for buildings according to the present invention, and FIG. 7 is a perspective view showing a backing material forming machine 9.
FIG. 8 is an explanatory diagram showing the position detection correction mechanism. 1... Surface base material delivery section, 4... Molding machine, 5...
Discharge section, 9... Back material forming machine, 10... Mold, 15
...Position detection correction mechanism.

Claims (1)

[Scope of Claims] 1. A surface base material delivery section consisting of an uncoiler and a pinch roller, a molding section that forms the surface base material into a concave shape, and a foamable synthetic resin having self-adhesive properties in the concave portion of the surface base material. It is equipped with a discharge part that supplies raw materials, a backing material delivery part that laminates on the discharged raw materials, and a mold that repeatedly forms voids and continuously eliminates them after a certain period of time has passed. In an apparatus for manufacturing thermal insulation boards for construction, a guide, a backing material forming machine, and a guide part for making the formed backing material correspond to the concave portion of the facing material are interposed between the backing material delivery section and the mold entrance,
Further, an apparatus for manufacturing a heat insulating board for construction, characterized in that a position detection and correction mechanism is provided at the mold entrance portion for aligning the position of the guide portion with the concave portion of the surface material. 2. The apparatus for manufacturing a thermal insulation board for construction according to claim 1, wherein the final stage of the backing material forming machine comprises a mountain-shaped lower roll and a trough-shaped upper roll.