JPH09295192A - Device for producing metal siding material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a rugged pattern from being deformed by providing a notch stretching in the width direction of a conveyer to the projecting part at prescribed intervals in the longitudinal direction of the conveyer. SOLUTION: In this device, the metal siding material applied with a the rugged pattern on the metal sheet surface material provided with a formed resin pouring part onto the surface material, and provided with a resin forming part to press the upper and lower faces of the surface material with a double conveyer arranged in upper and lower two stages above/below the pouring part is produced. The conveyer 25 to press the rugged pattern side of the surface material on the resin forming part is made in three stage saw knife like rigged pattern and on the back face a flat and rigid rubber block 26 is attached fixedly to the outside face of a rubber belt 29 by continuing mutual projecting parts 27 and mutual recessed parts 28 of the rugged pattern. A notch 32 stretching in the width direction of the conveyer is provided to the projecting part at prescribed intervals in the longitudinal direction of the conveyer. Therefore, even the conveyer is bent at the position of a pulley, the projecting part can be prevented from being broken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in a metal siding material manufacturing apparatus using a foamable resin as a core material, does not deform the concavo-convex pattern by the foaming pressure of the foamable resin, even if the surface material is provided with a large uneven pattern. Regarding things.

[0002]

2. Description of the Related Art Conventionally, various metal siding materials have been widely used for interiors and exteriors of houses. Typical metal siding materials are, as shown in FIG. Bend along the longitudinal direction to the same side,
A gutter-shaped body having side walls 2 and 2a on both sides of the flat portion 1 is formed, and a female fitting portion 3 recessed inside the flat portion 1 is formed on one side wall 2 and a female fitting portion is formed on the other side wall 2a. A foamed resin 6 is filled in a trough of a surface material 5 which can be fitted with a mating portion 3 and which is formed along a longitudinal direction together with a male fitting portion 4 projecting outward from the flat portion 1. The back surface material 7 is fixed to the front surface.

This metal siding material is manufactured by pinching a metal strip 9 from an uncoiler 8 as shown in FIG.
While pulling out with a roll 10 and bending both sides in the width direction upward with a roll molding machine 11 along the longitudinal direction, a female fitting portion 3 is formed on one of the bent portions and a male fitting portion 4 is formed on the other. By doing so, after forming the gutter-shaped surface material 5 with side walls 2 and 2a on both sides of the flat part 1, the surface material 5 is heated by the preheating device 12 to inject the foaming resin into the gutter. Device 1
It is supplied uniformly from 3. Here, the reason that the surface material 5 is heated by the preheating device 12 before the supply of the foamable resin is to shorten the foaming time of the resin and to improve the adhesion with the surface material 5.

After the foamable resin is supplied, the pushing device 14
Immediately insert the backing material 7 into the trough from the reel 15 arranged above by pressing the upper and lower surfaces in the heating furnace 16 with the double conveyor 18 arranged in two stages in the vertical direction with the pulley 17. The foamable resin was foamed. Here, the reason why the upper and lower surfaces are pressure-bonded by the double conveyor 18 is to prevent the backing material 7 from being pushed up. Therefore, as the conveyor, one having a flat surface such as a rubber belt conveyor or a slat conveyor is used. I was using it. After the resin is foamed, the traveling cutting machine 19 cuts it into a predetermined length to obtain a product.

By the way, the siding material has conventionally been embossed on the surface material 5 in order to improve the design. The embossing is performed between the pinch roll 10 and the roll forming machine 11. Place the molding device 20,
Before being formed into a gutter shape, it was embossed in a flat plate state. The conventional embossed pattern has a small pattern with a small depth such as a stucco pattern, but in recent years, the demand for large patterns with a large pattern and a large depth has increased. As shown in FIG. 9, called as "German upholstery", a conventional flat portion 1 having a saw-toothed concave-convex pattern formed in the longitudinal direction is required.

However, if such a large-sized pattern is manufactured under the same conditions as the small-sized pattern, the double conveyor 18 presses only the convex portion 21 of the concave-convex pattern.
The concave portion 22 is extruded by the foaming pressure of the foamable resin, and the uneven pattern is deformed.

[0007]

SUMMARY OF THE INVENTION The present invention provides an apparatus for producing a metal siding material capable of preventing this pattern deformation.

[0008]

SUMMARY OF THE INVENTION According to the present invention, the upper and lower surfaces of a surface material are covered by a double conveyor arranged in two steps next to the injection part of the foamable resin to the surface material made of a metal plate having an uneven pattern. In a manufacturing apparatus of a metal siding material provided with a resin foaming portion to be pressed, unevenness is provided along the unevenness pattern of the surface material on the outer surface of the conveyor that presses the unevenness side of the surface material with the resin foaming portion, and the unevenness is provided. Notches extending in the width direction of the conveyor were made at predetermined intervals in the convex portion of the conveyor at a predetermined interval with respect to the longitudinal direction of the conveyor.

[0009]

Since the outer surface of the conveyor has a shape that conforms to the uneven pattern of the surface material, it is pressed down to the concave portions of the uneven pattern formed on the surface material, and the uneven pattern of the surface material causes the foaming pressure of the foaming resin to rise. Prevents deformation. In addition, if the protrusions are provided with notches at predetermined intervals in the longitudinal direction of the conveyor, when the conveyor is bent at the pulley, the notches open and no tension is applied to the protrusions. The breakage of the convex portion is prevented. Furthermore, when the conveyor presses the surface material, the convexes before and after the cut are in contact, so even if the surface material is a coated metal plate, uneven coating, unevenness, marks, etc. due to the cut may occur. Does not occur. The outer side surface of the conveyor is the side surface opposite to the drive roller of the conveyor.

In order to provide the concavo-convex pattern on the outer surface of the conveyor, a method of integrally forming concavities and convexities on the outer surface of the conveyor and a method of fixing a concavo-convex object on the outer surface of the smooth conveyor are conceivable. The former method is a conveyor for each handle-
The latter method is preferable because it must be prepared and prepared, and the manufacturing apparatus must be stopped and the belt replaced each time the handle to be manufactured is changed. That is, if the concavo-convex shaped object can be fixedly attached and detached by the latter method, only the concavo-convex shaped object needs to be replaced.

In order to make a notch extending in the width direction of the conveyor by the latter method, (A) the concave-convex shaped article is composed of a plurality of divided bodies, and the divided bodies are arranged in the direction of rotation of the conveyor. It may be performed by a method of fixing while contacting in a row, or a method of making the uneven shape object into a band shape and making a cut only in the convex portion. When the cut is made by the method (A), the divided body is fixed to the conveyor by the conveyor.
It is desirable to have only a portion of the direction of rotation so that when the conveyor is bent at the pulley, other portions are separated from the conveyor and the splits bend less. Only a part of the divided body may be fixed with a screw or an adhesive that is easily peeled off, but when using an adhesive, it is about 1/5 of the length. Further, it is desirable that the length of the divided body in the direction of rotation of the conveyor is not more than the radius of curvature at which the concave portion is bent at the pulley so that a portion apart from the conveyor does not hinder the rotation of the conveyor. Further, it is preferable that the conveyor is a rubber belt conveyor whose fixing position can be changed according to the length of the divided body.

The material of the uneven shape has a foaming pressure of 0.7 kgf / cm ² when the foaming resin foams because the temperature in the heating furnace accommodating the double conveyor becomes 70 to 90 ° C.
However, the material that does not plastically deform at this temperature or pressure, such as heat-resistant hard rubber, heat-resistant synthetic resin, or metal, is used.

[0013]

【Example】

Example 1 FIG. 1 shows an apparatus for manufacturing a metal siding material according to the present invention. This manufacturing apparatus is a saw-toothed concavo-convex pattern instead of the roll forming machine 11 in the conventional manufacturing apparatus shown in FIG. A molding roll capable of forming three steps in a portion corresponding to the flat portion 1 of the conventional surface material 5 and a molding roll capable of forming the female fitting portion 3 and the male fitting portion 4 on the side walls 2 and 2a, respectively. A composite roll forming machine 23 in which the upper and lower conveyors 24 and 25 of the double conveyor 18 are attached to the rubber belt, and the lower conveyor 25 is attached to the metal strip 9 by the composite roll forming machine 23. A rubber belt conveyor having an outer surface with an uneven pattern corresponding to the formed saw-tooth-like unevenness, and other configurations are the same as those in FIG.

As shown in FIG. 2, the lower conveyor 25 has a rectangular hard rubber block 26 whose surface has a three-step saw-toothed concave-convex pattern and whose rear surface is flat. 28 is fixed to the outer surface of the rubber belt 29 so as to be continuous with each other, and the length of the hard rubber block 26 (longitudinal direction of the rubber belt 29) is set to be equal to or less than the radius of curvature bent at the pulley 17. To secure the hard rubber block 26, a two-step hole 30 is formed at the end of the lower conveyor 25 on the rotating direction side, and a screw 31 is inserted from the rubber belt 29 side so that the hard rubber blocks 26 contact each other. I've been there. Therefore, the notch 32 exists at the boundary of the hard rubber block 26.

In this manufacturing apparatus, since the surface material 5 and the lower conveyor 25 have the same concavo-convex pattern, when the foaming resin is foamed while being pressed by the double conveyor 18, the lower conveyor 25 is hard. The convex portion 27 of the rubber block 26 also presses the concave portion 22 of the surface material 5 as shown in FIG. Therefore, the unevenness pattern of the surface material 5 is prevented from being deformed by the foaming pressure of the foamable resin.

Further, the lower conveyor 25 is connected to the pulley 17
Hard rubber block 2 when reached and bent
As shown in FIG. 4, 6 is separated from the rubber belt 29 when it is not fixed by the screw 31, so that the hard rubber block 26 is not broken by the tension.

Example 2 FIG. 5 is a bottom side conveyor 25 of Example 1, in which a hard rubber block 26 fixed to a rubber belt 29 has a sawtooth-like uneven surface and a hard rubber strip with a flat back surface. 33
Then, the entire back surface is fixed to the rubber belt 29 with the adhesive 34. Concavo-convex convex portion 27 of the hard rubber band 33
The notches 32 are provided at intervals only in the height H (wedge-shaped portion above the dotted line). The intervals of the notches 32 are set to be equal to or less than the radius of curvature at which the concave portion 28 is bent at the pulley 17 in the longitudinal direction of the rubber belt 29.

Also in this manufacturing apparatus, since the concavo-convex pattern of the surface material 5 and the lower conveyor 25 are the same, the concavo-convex pattern of the surface material 5 is prevented from being deformed by the foaming pressure of the foaming resin.
When the lower conveyor 25 reaches the pulley 17 and is bent, the notch 32 formed in the convex portion 27 opens in a V shape as shown in FIG. In 33, the convex portion 27 does not break due to tension.

[0019]

As described above, according to the manufacturing apparatus of the present invention, the conveyor for pressing the uneven surface side of the surface material with the resin foaming portion is provided with the unevenness along the uneven pattern of the surface material on the outer surface. Therefore, the concave portion of the surface material is also pressed to prevent the uneven pattern from being deformed. Further, since the notches formed in the unevenness provided on the conveyor are provided with cuts extending in the width direction of the conveyor at predetermined intervals, even if the conveyor is bent at the pulley, the projection is broken. There is nothing to do.

[Brief description of drawings]

FIG. 1 shows the configuration of a metal siding material manufacturing apparatus of the present invention.

FIG. 2 is an enlarged partial perspective view of a lower conveyor in the metal siding material manufacturing apparatus of FIG.

FIG. 3 is a sectional view showing a state in which the lower conveyor presses the surface material in the metal siding material manufacturing apparatus of FIG.

FIG. 4 shows a state in which the lower conveyor is bent at pulley 17 in the metal siding material manufacturing apparatus of FIG.

FIG. 5 shows a lower conveyor used in another siding material manufacturing apparatus.

FIG. 6 shows the lower conveyor of FIG. 5 bent at the pulley-17.

FIG. 7 is a front view of a conventional general metal siding material.

FIG. 8 shows a conventional metal siding material manufacturing apparatus.

FIG. 9 shows an example of a large pattern of a metal siding material.

[Explanation of symbols]

1 ... Flat part, 2 2a ... Side wall, 3 ... Female fitting part, 4 ... Male fitting part, 5 ... Surface material, 6 ... Foam resin, 7 ... Back material, 8
... uncoiler, 9 ... metal strip, 10 ... pinch roll, 1
DESCRIPTION OF SYMBOLS 1 ... Roll molding machine, 12 ... Preheating apparatus, 13 ... Resin liquid injection apparatus, 14 ... Pushing apparatus, 15 ... Reel, 16 ... Heating furnace, 17 ... Pulley, 18 ... Double conveyor, 19 …
Running cutting machine, 20 ... Embossing molding device, 21 ... Convex part, 2
2 ... Recessed portion, 23 ... Composite roll forming machine, 24 ... Upper conveyor-, 25 ... Lower conveyor-, 26 ... Hard rubber block, 27 ... Convex portion, 28 ... Recessed portion, 29 ... Rubber belt, 30
... 2-step hole, 31 ... Screw, 32 ... Notch, 33 ... Hard rubber band, 34 ... Adhesive,

Claims (3)

[Claims] 1. A resin foaming portion for pressing the upper and lower surfaces of the surface material with a double conveyor arranged in two steps up and down is provided next to a portion for injecting the foaming resin into the surface material made of a metal plate having an uneven pattern. In the manufacturing apparatus of metal siding material, the resin foaming portion is provided with unevenness along the uneven pattern of the surface material on the outer surface of the conveyor that presses the uneven surface side of the surface material, and the lengthwise direction of the conveyor is at the unevenness of the unevenness. An apparatus for manufacturing a metal siding material, characterized in that cuts extending in the width direction of the conveyor are formed at predetermined intervals with respect to the direction. 2. The rubber belt conveyor is used as a conveyor, and a plurality of concave-convex shaped object divisions are fixed in a row on the outer surface of the rubber belt in the longitudinal direction of the conveyor. Equipment for manufacturing metal siding materials. 3. The apparatus for producing a metal siding material according to claim 1, wherein the conveyor is a rubber belt conveyor, and a belt-shaped concave-convex material is fixed on the entire outer surface of the rubber belt.