JPS58165931A - Apparatus for producing insulating plate for building - Google Patents

Abstract

PURPOSE:To produce an insulating plate with low cost by distributing high density fire-proofing aggregate only in a female mold connecting construction portion and making the other portions a single synthetic resin foamed layer so that metal hoop materials are secured fixedly to seat-like materials with self-adhesive property in foaming. CONSTITUTION:A hoop material a is continuously formed by roll forming so that the cross-section is concave and provided on the opening ends of the side walls with male and female mold connections b, c. A predetermined amount of fire-proofing material f is supplied from a slit 13a in an outlet of a discharging tool 13 to the back surface of a female mold connection e of the hoop material a heated by a preheater 4. Next, foaming synthetic resin material g is discharged from a core material supply means 14 to an opening surface of the hoop material a so that the hoop material a is adhesively covered with polyurethane resin on the way of reaction. The hoop material a are mated sequentially with a back surface material d by a cure means 5 so that a space between the hoop material a and the back surface material d is filled with a forming layer to provide an insulating plate material.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a heat insulating board for construction (hereinafter simply referred to as a heat insulating board) useful as an exterior material for buildings and structures. In particular, this insulation board can be used as a fireproof structural member,
The present invention also relates to an apparatus capable of manufacturing a heat insulating board with excellent productivity and cost reduction.

Conventionally, the equipment for producing the above-mentioned heat insulating boards has been to mix refractories throughout the foamed structure of the synthetic resin foam that serves as the core material, layer flat sheets on top of it, and then heat it in a curing oven. It was common to have a structure in which the material was fed, cured, and molded. However, the heat insulating board manufactured using the above apparatus had the following drawbacks. In other words, ■ With conventional equipment, it is difficult to uniformly mix the foamable synthetic resin raw material and the refractory because the reaction rate, expansion rate, and viscosity increase rapidly, and the foam structure is extremely rough. Become. ■If the foam structure of the insulation core material is damaged, the foaming ratio and mechanical strength will decrease. ■■ and ■ increase the amount of foamable synthetic resin used, leading to an increase in cost. ■The foamable synthetic resin leaks from the side edge of the sheet material during foam molding, staining the back surface of the insulation board and the mold material.

In other words, when a flat sheet-like object is formed into a foam, the foaming pressure of the foam is used to mold the sheet-like object to fit the mold material, so even a slight deviation causes the above-mentioned result. (2) In particular, in the case of a cross-sectional shape that has a bulge protruding from the recess of the metal hoop material, the desired cross-sectional shape is very often not achieved because the side ends of the female part are molded and released at the same time. This is because the synthetic resin raw material in the process of foaming comes into direct contact with the mold material. That is, this is because a gap occurs between the current hot water temperature of the mold material being heated and the turbidity of the raw material during foaming.

In order to eliminate such drawbacks, the present invention can form a fireproof layer in which fireproof aggregate is present at a high density only in the female connection structure, which is the weakest point in the fireproof structure, and in other parts. The synthetic resin foam layer has a single structure, and can be coated with the backing material in a molded state.The self-adhesive property of the foamable synthetic resin material when foaming allows it to adhere to the metal hoop material and sheet material, resulting in low cost. and the desired fire resistance,
The present invention proposes an apparatus for producing a heat insulating board that has good heat insulation properties and mechanical strength, and that does not cause resin to leak outside due to the foaming pressure during manufacturing and contaminate the heat insulating board and the equipment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a heat insulating board manufacturing apparatus according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic diagram showing an embodiment of a heat insulating plate manufacturing apparatus according to the present invention. In fig.

Reference numeral 1 denotes a surface material supplying means for continuously feeding a flat plate or embossed metal hoop material (hereinafter simply referred to as hoop material), which is composed of an uncoiler and a pinch roller 2 equipped with hoop material A, for example. This is for continuously feeding the molding means 3 for the next step.

The forming means 3 continuously forms the hoop and the material by, for example, roll forming, as shown in the second figure). As is clear from the figure, the formed hoop material A has a concave cross section, and has a male connecting portion opening and a female connecting portion C at the open end of its side wall. 4 is about 40 to 80CIf the hoop is rolled formed by heating means.
When the hoop material C is clouded and transferred to the next process, the hoop material A is kept at a set constant temperature. This prevents the contact area and the ambient temperature from greatly influencing the chemical reaction system like a catalyst when the foamable synthetic resin raw material is discharged as described later, and changes in fluidity and expansion ratio. It is for. 5 is a lower die conveyor 6 which transfers the hoop material A molded by the curing means with the concave opening exposed, and a lower die conveyor 6 is fitted to the lower die conveyor 6 so that the back surface material 2 is closed to the opening of the hoop material A. It consists of an upper mold conveyor 7 that guides the molds. Specifically, above,
The lower conveyor is either a caterpillar type or a steel belt type, and each conveyor 6.7 is approximately 40~90C.
It is constantly heated.

8 is a refractory supply means for supplying a fixed amount of inorganic porous particles, and as shown in FIG. 3, a hopper 9, a hose 10, a switch 11, a gate 12 and a discharge tool 13 are connected in series. As shown in Fig. 2(b), on the back side of the female connecting part of the hoop material A, inorganic porous grains (hereinafter simply referred to as refractories), such as pearlite grains, shirasu balloons, etc., are continuously and quantitatively added. supply. That is,
The ON-OFF switch 11 is used to stop and stop the supply to the refractory, and the gate 12 keeps the amount of feed to the refractory constant.

If there is no game) 12 and the refractory is supplied directly to the discharge tool 13, the discharge amount is controlled when the switch 11 is turned on and off, and the opening and closing are finely tuned until the amount of gas passing through the refractory becomes constant. This is because it is necessary to make adjustments. The dispensing device 13 temporarily stores the refractory material that has passed through the gate 12 for a short period of time, and supplies a fixed amount of the refractory material to the rear surface from the surin 13a.

That is, the discharge tool 13 has a hopper-like cross section as shown in FIG. It is supplied to the back side of the mold connection part. Note that the distance Δh between the back surface and the sulin 13a is not directly related to the supply amount since the surface to be laminated is constantly moving, but it is approximately 5 to 50 g to prevent scattering and discharge to a predetermined position. 14
is a core material supply means for discharging foamable synthetic resin raw materials, such as polyurethane resin, phenol resin, and resin for polyisocyanurate foam in a fan-shaped film thickness pattern. Reference numeral 15 denotes a backing material supplying means for continuously supplying the backing material 2, and 16 denotes a forming guide means, which comprises a guide roller 17 and a paper forming machine 18 that forms the backing material 2 into an m-shape. At the entrance of the open curing means 5, a backing material such as kraft paper, asbestos paper, etc.
One or two types of metal foil (Al, Cu, Fe)
It is intended for occlusion with a laminate of seeds or more. Reference numeral 19 denotes a means for cutting the heat insulating plate into regular lengths, and is made of, for example, a flying cutter. Reference numeral 20 is a cover that maintains the curing means 5 at a predetermined humidity and prevents leakage of toxic gas and nonflammable gas into the working environment and danger to workers.

Next, the operation of the heat insulating board manufacturing apparatus according to the present invention will be briefly explained. The hoop material (1) was a pre-coated metal plate with a thickness of 0.27 mm, the back material (2) was kraft paper laminated with aluminum foil, and the foamable synthetic resin material (1) was a polyurethane resin. Further, the upper and lower conveyors 6.7 rotate in the direction of the arrow at a speed of 3 Q Vmin, and are heated to a mold temperature of 600°C. Sara K,
The heating means 41 is composed of, for example, a hot air type preheater, and heats the hoop material by 40UK. Then, the starting end of the hoop material 1 is guided to the bintero and loop 2, and fed to the forming means 3. From the outlet of the forming means 3, the hoop material A formed into the shape shown in FIG. 2 (al) is continuously fed to the next process. A is fed to the preheater 4, heated to about 40C, and is inserted into the lower mold conveyor 6 so that the concave opening is exposed, and reaches just below the refractory supply means 8.Then, the refractory ( Here, pearlite grains have an average grain size of 2 to 3 II
A fixed amount of φ) is supplied to the back side of the female connector E in the state shown in FIG. In addition, B − to the supplied pearlite grains
When passing through the position of line B', the hoop material is in a stacked state as shown in FIG. The foamable synthetic resin raw material is discharged, and as shown in FIG. It is discharged so that a part of it also adheres to the pearlite grains near the laminated part.This is to prevent the pearlite grains from falling off to the concave side.In this way, the foamable synthetic resin raw material and the fireproof When the hoop material A laminated onto the object reaches the entrance of the curing means 5, that is, the position indicated by the line D-D' in FIG. As shown, the hoop material A is sequentially laminated on the back surface of the hoop material A. Next, the hoop material A and the back surface material II are gradually brought into alignment by the upper and lower mold conveyors 6 and 7 of the curing means 5. On the other hand, the curing means 5 Once inside, the foamable synthetic resin reacts and the foaming speed increases rapidly, and the space formed by the hoop material A and the backing material II is filled with the foam layer, and
The foamable synthetic resin raw material also penetrates into the spaces between the refractories due to the foaming pressure, and the state shown in FIG. After that, it undergoes a curing process and is sent out as a heat insulating board material from the outlet.

This is cut into a regular length by a cutting means 19 to produce a product. As shown in Figure 5, the heat insulating board manufactured in this way has a refractory layer with a high density distribution of refractories reliably formed on the back surface of the female joint, and a synthetic resin foam layer formed on the concave portion. It had been.

What has been described above is only one embodiment of the heat insulating board manufacturing apparatus according to the present invention, and an embossing process may be incorporated during roll forming, or a gate-like function may be concentrated on the discharge tool 13.

As described above, the heat insulating board manufacturing apparatus according to the present invention is characterized in that the above-mentioned drawbacks (1) to (4) are solved at once.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an embodiment of the apparatus for manufacturing insulation board materials for buildings according to the present invention, Fig. 2 (el is an explanatory diagram showing the steps in the above apparatus, Fig. 3 is an inorganic porous particle FIG. 4 is an explanatory diagram showing a dispensing tool for inorganic porous particles, and FIG. 5 is an explanatory diagram showing a heat insulating board material for construction manufactured by the above device. 1006 Surface material supply means, 306. Molding means, 501.
Cure means, 810. Refractory supply means. 1 Figure 11'' Figure 2 (a) Hoku 9 (b) Figure 2 (Main Figure 3

Claims (1)

[Claims] (1) A surface material supply means for continuously feeding a metal hoop material, a forming means for forming the metal hoop material into a concave cross section with male and female connecting portions arranged on the left and right sides of the lower end of the side wall, and A heating means for heating the metal hoop material to a constant temperature, a lower mold conveyor that fits with the molded metal hoop material with its concave opening exposed, and an upper mold conveyor that fits so as to close the opening of the lower mold conveyor. a curing means comprising: a refractory supply means for supplying a fixed amount of inorganic porous particles to the back surface of the female connecting portion of the metal hoop material fed from the heating means; A core material supply means for discharging a core material made of a foamable synthetic resin raw material to a portion with an average thickness; a back material supply means for feeding a back material; A forming guide means for guiding and feeding the metal hoop material so as to cover the back side of the metal hoop material by forming it into a cross section, and a sandwich structure architectural insulation board material that is fed from the curing means in accordance with the speed of the curing means. 1. A manufacturing device for a thermal insulation board for construction, comprising: a cutting means for cutting into a fixed length.