JPH03190713A - Manufacture of heat-insulating material - Google Patents

Abstract

PURPOSE:To prevent surface blister by injecting a synthetic resin into a recessed section on the rear side of a lower metallic hoop material, to which lateral trapezoidal vein working is conducted, superposing an upper metallic hoop, to which lateral trapezoidal vein working is performed similarly, and inserting the superposed metallic hoop materials into upper and lower conveyors with irregular support sections to irregularities in the manufacture of a heat-insulating material for the flooring, etc., of a building. CONSTITUTION:A lower metallic loop 2 is trapezoidal vein-worked through lateral type trapezoidal vein molded rollers 12A, 12B, and forwarded under synthetic-resin liquid agitators 9, 10 while upward positioning a rear-side trapezoidal vein recessed section. A synthetic resin liquid is injected into the recessed sections first, and a synthetic resin is injected so as to cover the whole surfaces of irregular sections by the agitator 10. An upper metallic hoop 1, to which trapezoidal vein working is conducted similarly, is superposed simultaneously so that irregular sections are faced oppositely by the upper and lower hoops 1, 2. The superposed metallic hoops are fed between upper and lower conveyors 7, 8 with irregular support sections 5A-5B corresponding to the irregular sections of the hoops, and carried while being pushed and pressure- welded, thus forming a thermal insulating board. According to the constitution, the blister of a surface can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of using a heat insulating material used for roofing members, wall members, and flooring materials of buildings.

[Conventional technology]

Conventionally, as seen in USP No. 3.117.171,
One synthetic resin liquid stirrer was used for injection, and a metal hoop material with horizontal trapezoidal veins was manufactured at the top. Moreover, the product had a flat bottom surface.

[Problem that the invention seeks to solve]

USP 3.117.171 requires that the lower metal hoop material (
Paper, film) was flat, the upper metal hoop material was processed into horizontal trapezoidal veins, and the synthetic resin stirring liquid was injected and sprayed from a synthetic resin liquid agitator onto the lower metal hoop material.

In the above method, voids were generated in the protrusions on the back side of the upper metal hoop material where the trapezoidal veins were processed. Furthermore, if excessive injection is performed to eliminate voids, the irregular surface on the front side of the metal hoop material processed with trapezoidal veins will swell abnormally due to the foaming pressure and internal heat generation.

In order to prevent the "bulge", pressing the upper conveyor with a conveyor having an uneven surface corresponding to the uneven surface of the horizontal trapezoidal vein processing of the upper metal hoop material did not solve the problem. In addition, the above product also had the problem of ``warping'' occurring on the flat part side of the bottom surface.

[Means of solution]

As a result of intensive research to solve the above problems, we have arrived at the present invention.

That is, the present invention continuously supplies upper and lower metal hoop materials, continuously forms horizontal trapezoidal veins separately using horizontal trapezoidal vein-forming rolls on the upper and lower sides, and processes the upper and lower metal hoops into horizontal trapezoidal veins. The hoop materials are transported vertically symmetrically, and a synthetic resin stirred liquid is injected and dispersed onto the uneven parts on the back side of the horizontal trapezoidal veins of the lower metal hoop material using a synthetic resin liquid stirrer to create insulation. In this method, first, a first synthetic resin liquid agitator is used to inject the liquid into the recessed part of the back side of the lower metal hoop material, which is processed with horizontal trapezoidal veins, and immediately after that, a second synthetic resin liquid is agitated. Using a machine, a synthetic resin stirring liquid was injected over the entire surface of the irregularities of the lower metal hoop material, and immediately after injection, the upper metal hoop material, which was machined with horizontal trapezoidal veins, was conveyed from the top and processed with upper and lower horizontal trapezoidal veins. A method for producing a heat insulating material in which the upper and lower uneven parts are symmetrical has been devised, which is characterized by pressing and pressure contact between upper and lower conveyors having uneven support parts corresponding to the uneven parts of the metal hoop material.

The present invention will be explained based on the drawings.

FIG. 1 is a sectional view in the direction of movement of essential parts for manufacturing a preheated plate. Similar to the upper metal hoop material 1 processed with horizontal trapezoidal veins, the lower metal hoop material 2 processed with horizontal trapezoidal veins is vertically symmetrically positioned, and a heat insulating material B is interposed between them.

The convex part 3A (concave part on the back side) on the front side and the concave part 4A (convex part on the back side) on the front side of the upper metal hoop material are connected to the concave part support part 5A (the concave part support part 5A on the upper metal hoop material) of the endless conveyor 8 with a concave part support part. 1) and the convex contact portion 13
By pressing A (correction of bulges on the convex portions 3A on the front side of the upper metal hoop material 1), the bulges on the uneven portions of the upper metal hoop material 1 are corrected and the surface of the uneven portions is flattened.

Similarly, the convex part 3B on the front side (concave part on the back side) and the concave part 4B on the front side (convex part ff on the back side) of the lower metal hoop material 2 are as follows.
By pressing the concave part support part 5B and the convex part contact part 6B of the lower endless conveyor 7 with concave part support parts, the bulges of the concave and convex parts of the lower metal hoop material 2 are corrected and the surface of the concave and convex parts is flattened.

FIG. 2 is a schematic cross-sectional view showing the method for manufacturing the heat insulating board A of the present invention. The upper metal hoop material 1 is processed into horizontal trapezoidal veins by horizontal trapezoidal vein forming rolls 12A and 12B, and is conveyed by the endless conveyor 8 with the upper concave support. The lower metal hoop material 2 is also horizontal trapezoidal vein forming rolls 12A and 12B.
A horizontal trapezoidal vein is processed at the bottom and conveyed by an endless conveyor 7 with a concave support section.

Thermal insulation material B is produced by a synthetic resin liquid stirrer 9.10. First, the synthetic resin stirring liquid 11A injected from the first synthetic resin liquid stirring device 9 is injected and filled into the recessed part 3B on the back side of the lower metal hoop material, and is moved diagonally in conjunction with the conveyor speed.
When it reaches the end (left), use the limit switch to turn around and continue pouring into the next recess.

Continuously continue injecting while moving diagonally in the same way, and at the end (right), use the limit switch to turn around and move to the next concave part to continue injecting. In this way, the left end and the right end are traversed (repeatedly traversed) to inject and fill the recesses one after another.

A second synthetic resin liquid stirrer 10 is installed at a distance of 1 m to 2 m from the first synthetic resin liquid stirrer 9, and the uneven parts 3B and 4B on the back side of the lower metal hoop material are traversed (crossed repeatedly). Inject and sprinkle over the entire surface.

The interval between the first synthetic resin liquid stirrer and the second synthetic resin liquid stirrer is such that the synthetic resin stirred liquid 11A injected from the first stirrer stirs Wi2 before gelation (resinization) starts. Being superimposed on the synthetic resin stirring liquid 11B injected from the machine,
This is because it is desirable for manufacturing heat insulating boards.

The synthetic resin used in the present invention is rigid polyurethane foam or phenol resin.

〔effect〕

Since the resin was injected and filled twice from the first and second synthetic resin liquid stirrers, there were no gaps caused by insufficient filling. Further, since the upper and lower conveyors were provided with the concave support portions and the convex contact portions, the heat insulating plate A was able to have a flat surface with no bulges and concavo-convex portions.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing essential parts of the heat insulating board and manufacturing method of the present invention. FIG. 2 is a schematic cross-sectional view showing the manufacturing method of the present invention. 1. Upper metal hoop material 2, Lower metal hoop material 3A, Convex part on the front side of the upper metal hoop material (recessed part on the back side) 3B, Convex part on the front side of the lower metal hoop material (recessed part on the back side) 4A, Concave part on the front side of the upper metal hoop material (convex part on the back side) 4B, Concave part on the front side of the lower metal hoop material (convex part on the back side) 5A, Concave part support part of the upper conveyor 5B, Lower part The synthetic resin of the conveyor concave support part 6A, the convex contact part 6B of the upper conveyor, the convex contact part 7 of the lower conveyor, the lower conveyor 8, the upper conveyor 9, and the first synthetic resin liquid agitator 10112 Liquid stirrer 11A, first synthetic resin stirring liquid 11B, second synthetic resin stirring liquid 12A, 12B, horizontal trapezoidal vein forming roll 13, conveyor holding stand 14, conveyor holding leg 15, horizontal surface A, heat insulation board B, heat insulation material

Claims (1)

[Claims] The upper and lower metal hoop materials are continuously supplied, and the upper and lower horizontal trapezoidal vein forming rolls are used to continuously form horizontal trapezoidal veins separately, and the upper and lower metal hoop materials processed into the horizontal trapezoidal veins are In a method of producing a heat insulating material by transporting the metal hoops symmetrically and injecting and dispersing the synthetic resin stirred liquid from a synthetic resin liquid stirrer onto the uneven parts on the back side of the horizontal trapezoidal veins of the lower metal hoop material. First, the first synthetic resin liquid agitator is used to inject into the recessed part of the back side of the lower metal hoop material, which has been machined with horizontal trapezoidal veins. Inject synthetic resin stirring liquid all over the uneven parts of the hoop material,
Immediately after injection, the upper metal hoop material processed with horizontal trapezoidal veins is conveyed from the upper part and pressed and pressed by upper and lower conveyors having uneven support parts corresponding to the uneven parts of the upper and lower horizontal trapezoidal veined metal hoop materials. A method for producing a heat insulating material in which the upper and lower uneven portions are symmetrical.