JPH0577377A - Production of double-side metal siding material and device therefor - Google Patents

Abstract

PURPOSE:To obtain a production of a double-side metal siding material superior in workability and strength and a device therefor. CONSTITUTION:As metal belts 8, 8a, a rear-side material of a conventional metal siding material is used. While being supplied, the metal belts 8, 8a are embossed and preheated, as required. In a conventional metal siding material production machine, the rear-side material is supported by a roll, a pressing device inserts both ends of the rear-side material into the tub of the top-side material by a presser roll of a curved surface disposed just after the support roll, and in the supply paths of the rear-side materials, embossing machines 9, 9a and preheating devices, as required, are disposed.

Description

Detailed Description of the Invention

[001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing a double-sided metal siding material having a foamable resin filled inside.

[002]

2. Description of the Related Art As shown in FIG. 4, a conventional metal siding material is generally formed by bending both sides of a narrow metal strip in the width direction into the same side to form a gutter-shaped cross section, and a width direction on one side wall. A male mold 1 protruding from the inner wall of a surface member 3 having a female mold 2 into which the male mold 1 can be inserted and fitted on the opposite side wall. A hard urethane foam, an isocyanurate foam, and a phenol foam. -A foamed resin 4 such as a foam is filled, and a backing material 5 is fixed to the surface of the foamed resin so that both ends are located in the gutter. As a metal strip, a colored zinc iron plate,
Colored aluminum plates, colored aluminum-zinc alloy plated steel plates, stainless steel plates, titanium plates, etc. are used.

The main use of this metal siding material is to apply the siding material to the outer wall of the house, since the base material is applied in advance, so that the back surface material has not been a problem in conventional strength and appearance. .. For this reason, inexpensive and non-flammable aluminum kraft paper, aluminum non-combustible paper, aluminum foil, etc. were used.

As shown in FIG. 5, the metal siding material is manufactured by supplying the metal strip 8 for the surface material 3 from the uncoiler 7 with the pinch roll 6 and using the embossing device 9 for the metal strip 8. After processing, the metal band 8 is molded by a roll molding machine 10 into a gutter-shaped cross-section that opens upward, and at the same time, the male mold 1 is inserted into one side wall and the male mold is inserted into the opposite side wall. A female mold 2 that can be fitted is formed to form a surface material 3. In many cases, the surface material 3 is provided with joints at the bottom part of the gutter at the time of molding to give designability.
6A to 6E, the cross-sectional shapes are as shown in FIGS. 6A to 6E.

This surface material 3 is heated by the preheating device 11,
After the foaming resin is uniformly supplied into the trough of the surface material 3 from the resin liquid injecting device 12, the back surface material 5 is pushed into the trough of the surface material 3 by the pushing device 14 from the reel 13 arranged above. Then, the double conveyor-16 placed in the heating furnace 15
While the front surface material 3 and the back surface material 5 are pressure-bonded with each other, the resin is foamed and then cut by the running cutting machine 17 to a predetermined length. The preheating device 11 is provided so that the foamable resin to be supplied next can be foamed in a short time and the adhesion with the surface material 3 is improved.

The backing material 5 is inserted into the trough of the surface material 3 by setting the coil of the backing material 5 in the reel 13 and pulling out the backing material 5 from the front surface with the guide roll 18. Material 3
The pushing device 14 is inserted by changing its direction to the moving direction of the pushing device 14. As shown in FIG. In the width direction, and two pressing rolls 20 set to the gutter width of the surface material 3 are arranged closely to this, and either side of the back surface material 5 is pushed by this pressing roll 20. The support rolls 19 are not arranged, and only the two pressing rolls 20 are used to push the opposite ends of the backing material 5.

However, in recent years, the metal siding material is not used on the base material, but the back surface is used as an interior material, for example, a medium-scale factory, warehouse or gallery.
It has come to be used for Ji. When used for such an application, if the backing material is made of the above-mentioned material, when the material hits the back surface, the backing material is easily broken and the appearance is deteriorated. Further, sprinkling water or dew condensation water permeates the foamed resin from the broken portion to cause mold or corrode the surface material from the inside.

Therefore, as a metal siding material used for such an application, the present inventors have previously proposed a double-sided metal siding material using an embossed metal plate for the back surface material 5 (Japanese Patent Application No. 3-60929). ). This siding material uses an embossed metal plate for the back surface material 5, so there is no fear of breakage, and even if the back surface material is thin, it is not sticky and has a large bending strength. Therefore, there is a feature that the interval for nailing can be widened.

[0109]

This double-sided metal siding material has been manufactured by setting a metal strip that has been embossed in advance on the reel 13. However, an embossed metal strip is prepared in advance before manufacturing. However, there is a problem that the work becomes complicated. Further, simply supplying the embossed metal strip as in conventional aluminum kraft paper etc. was insufficient in adhesion to the foamed resin.

Further, in terms of equipment, both ends of the metal strip must be inserted into the gutter of the surface material 3 to prevent peeling due to being caught during handling or construction.
It must be wider than the gutter width, but the pushing device 1
If the support roll 19 of No. 4 has a full-length uniform diameter, there is also a problem that it cannot be easily inserted into the trough of the surface material 3.
The present invention provides a method and an apparatus for manufacturing a double-sided metal siding material that solves these problems.

[0111]

According to the present invention, an unembossed metal strip is used as the backing material, and the metal strip is embossed during the supply of the metal strip or preheated together with the embossing. That is, the metal strip of the back material is supplied from above the surface material into the trough of the surface material while embossing is performed during the supply of the metal strip of the back material, or after the embossing, the metal strip of the back material is supplied before the supply of the surface material into the trough. To preheat.

Further, as the manufacturing apparatus, the supporting roll of the pushing device is a curved surface roll having a large central diameter, or the back surface material is processed into the back surface material guiding means together with the curved surface roll. An embossing device for the heating or a preheating device for preheating the backside material was arranged.

[0113]

[Function] Since the metal strip of the backside material is embossed during the supply, it is not necessary to prepare the backside material of the metal strip preliminarily embossed, and the backside material is placed in the gutter of the surface material. If the pre-heating is performed before the supply, the foaming resin injected into the surface material is not cooled by the back surface material, so that the adhesion between the back surface material and the foaming resin is improved.

Further, in the pushing device, since the supporting roll is a curved surface roll (a drum-shaped roll) having a large central diameter, the pressing roll to be arranged next. If both sides of the metal strip of the backside material are pressed with, the backside material is curved along the curved surface of the pressing roll, and the width becomes narrow. Therefore, the back material can be pushed into the gutter even if the width of the back material is wider than the gutter width of the surface material. However, after passing through the pressing roll, it is released from the bending deformation action by the curved surface roll, and the backing material elastically spreads in the trough and becomes flat, so even if the foaming force of the resin acts from the inside. It does not come off.

In the case of a metal siding material, the embossed pattern of the surface material is generally a large pattern such as a pine pattern, a coral pattern, and a stucco pattern in consideration of the design, but in the case of the back surface material, the stickiness is As long as it can be prevented, a uniform small pattern, such as a diamond pattern, is preferable. The thickness of the backing material may be about half of the thickness of the surface material, and is generally 0.15 to 0.1.
It is preferably about 20 mm.

If the backing material is inserted into the gutter of the surface material while it is cold in the winter when the temperature is low, the foaming resin is cooled and the foaming rate and the adhesion to the backing material are poor. It is preferred to preheat to 25-45 ° C before inserting it into the trough of the material.

[0172]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the entire apparatus for producing a double-sided metal siding material according to the present invention, which includes a pinch roll 6, an uncoiler 7, an embossing device 9, a roll forming machine 10, a preheating device 11 and a resin. The liquid injecting device 12, the guide roll 18, the pushing device 14, the heating furnace 15, and the cutting machine 17 are arranged like a conventional metal siding material manufacturing apparatus using aluminum kraft paper as the backing material 5. is there.

Another uncoiler 7a is arranged in front of the uncoiler 7, and the metal strip 8a of the backing material is supplied from there. Moreover, a guide roller is provided above the uncoiler-7.
And a pinch roll 6 behind it.
a, an embossing device 9a, and a preheating device 11a are sequentially arranged so that the metal strip 8a passes over the guide roll 21 and is moved to face the metal strip 8 of the surface material so as to be embossed and preheated. Furthermore, on the guide roll 18,
A guide roll 22 is arranged to guide the metal strip 8a from the preheating device 11a toward the guide roll 18.

As shown in FIGS. 2 and 3, the pushing device 14 is constituted by a supporting roll 19 and a pressing roll 20 in a conventional manner. Is a curved surface roll with a larger
It is shorter than the width of.

In the metal siding material manufacturing apparatus configured as described above, if the front surface metal strip 8 and the back surface metal strip 8a are fed at the same speed by the pinch rolls 6 and 6a, the metal strip 8 will be formed. Molded as conventional. On the other hand, the metal strip 8a
Is pre-heated by the pre-heating device 11a after being embossed by the embossing device 9a and reaches the pushing device 14 through the guide rollers 22 and 18.

In the pushing device 14, the supporting roll 19 has a curved surface and the body length is shorter than that of the metal strip 8a. Therefore, the pressing roll 20 pushes both sides of the metal strip 8a. In this case, it is easily curved and can be inserted into the gutter of the surface material 3.

[0222]

As described above, according to the present invention, it is not necessary to prepare a metal strip for a backing material which has been embossed in advance prior to manufacturing, and the backing material and the foamed resin can be sufficiently adhered to each other. .. Further, since the metal strip of the back material is curved by the curved surface roll and inserted into the trough of the front material, the insertion is easy.

[Brief description of drawings]

FIG. 1 is a side view of the entire double-sided metal siding material manufacturing apparatus of the present invention.

FIG. 2 is a perspective view of a pushing device in the double-sided metal siding material manufacturing apparatus.

FIG. 3 is a front view of a support roll in the pushing device of the double-sided metal siding material manufacturing apparatus.

FIG. 4 is a cross-sectional view of a conventional metal siding material.

FIG. 5 is a side view of the entire conventional metal siding material manufacturing apparatus.

FIG. 6 is a sectional view of a surface material of a metal siding material.

FIG. 7 is a perspective view of a pushing device in a conventional metal siding material manufacturing apparatus.

[Explanation of symbols]

1 male type, 2 female type, 3 surface material, 4 foamed resin, 5
Back material, 6, 6a pinch roll, 7, 7a uncoiler, 8, 8a metal strip, 9, 9a embossing device, 10 roll forming machine, 11, 11a preheating device, 1
2 resin liquid injecting device, 13 reel, 14 pushing device, 15 heating furnace, 16 double conveyor, 17 running cutting machine, 18 guide roll, 19 support roll, 2
0 Pressing roll, 21, 22 Guide roll,

Claims (5)

[Claims] 1. An embossing process is performed while continuously supplying a metal strip, and both end portions in the width direction of the embossed metal strip are roll-formed into a gutter-like shape that opens upward, and at the same time, one side wall thereof is formed. Is a male mold, and after forming a female mold that fits with the male mold on the opposite side wall to form a surface material, the foamable resin liquid and the back surface material are sequentially supplied into the trough of the surface material, Then, in the manufacturing method of the metal siding material in which the resin is foamed while pressing both sides of the front surface material and the back surface material in the opposing direction with a double conveyor, a metal strip is used as the back material,
A method for producing a double-sided metal siding material, which comprises supplying the metal strip from above the surface material into a trough of the surface material while performing embossing during the supply. 2. The method for producing a double-sided metal siding material according to claim 1, wherein the metal strip of the back surface material is preheated after the embossing and before the surface material is supplied into the trough. 3. A metal strip supply device for a surface material, a metal strip embossing device, and an embossed metal strip are formed into a gutter shape with an upward opening, and at the same time, a male mold is formed on one side wall and another side wall is formed. Is a roll molding machine for forming a female material to be fitted with the male mold to form a surface material, a device for injecting a resin liquid into the trough of the surface material, a support roller extending in the width direction of the surface material, and Arranged in close proximity to the support rolls, a backing material pushing device consisting of two pressing rolls set to the gutter width of the surface material, and a double conveyor for crimping the surface material and the backing material are sequentially arranged, In addition, in the apparatus for manufacturing a metal siding material, which is provided with a metal strip supply device for back surface material and a back surface material guide means from the supply device to a support roll of the pressing device in front of the pressing device, the pressing device The support body has a larger center diameter An apparatus for producing a double-sided metal siding material, which has a curved surface roll. 4. An apparatus for producing a double-sided metal siding material, wherein a metal strip embossing device is arranged in the back surface material guiding means of the production apparatus according to claim 3. 5. An apparatus for producing a double-sided metal siding material, wherein a preheating device for preheating the back surface material is arranged in the back surface material guiding means of the manufacturing apparatus according to claim 3.