JPH0481510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for continuously manufacturing composite boards used as exterior materials for buildings.

(Prior art) As shown in Japanese Patent Publication No. 59-17675, the conventional technology involves forming a thin metal plate to form a surface material with a flat decorative surface, and discharging unfoamed synthetic resin raw material into the concave part. There is an apparatus for manufacturing a composite plate in which a backing material is laminated thereon and the material is continuously manufactured into a predetermined shape via a caterpillar type or steel belt type mold member.

(Problems to be Solved by the Invention) Conventional equipment can only be used when the decorative surface of the surface material is a flat surface, and has the disadvantage that it cannot be manufactured if the decorative surface is sloped or has steps. Ta. Moreover, although it is possible to manufacture a composite board with an inclined decorative surface using a caterpillar type material, the manufacturing speed is slow at 5 to 10 m/min, which has the disadvantage of poor productivity.

(Means for Solving the Problems) In order to solve these problems, the present invention transports the surface material immediately after forming it with a conveyor that matches the decorative surface, and transports it with a roller that matches the cross section of the composite board. The core material interposed between the front surface material and the back surface material is foamed in a curing oven consisting of a group of layers, and the core material is formed into one piece.Then, this continuous band is cut into regular lengths with a running cutter to form a composite material in large quantities and at high speed. It is configured to be able to manufacture plates.

(Function) According to this configuration, a surface material made of a thin metal plate is formed, this surface material is guided in a line contact state by a group of rollers, and then a core material is supplied to the back surface of the surface material,
The backing material is laminated thereon, and the continuous strip is cut into regular lengths by being conveyed and heated while controlling the thickness.

(Embodiment) An embodiment of the composite plate manufacturing apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the apparatus according to the above invention. In the figure, 1 is a metal sheet feeding section (hereinafter simply referred to as the feeding section), 4 is a loop section, 5 is a forming machine, 6 is a conveying machine,
14 is a discharge machine, 16 is a cure oven, 35 is a surface material, 36 is a back material, 37 is a core material, and 41 is a running cutter. To explain further, the feeding section 1 consists of an uncoiler 2 and a pinch roller 3, and is equipped with a flat metal thin plate (having a decorative coating such as a decorative coating or a decorative film) 35' wound into a coil. This is to ensure that the feed is constantly and easily fed to the loop portion 4. Furthermore, the forming machine 5 also has a metal thin plate 35'
For example, as shown in FIGS. 2a to 2h, the surface material 35 is formed by continuously molding. The conveying machine 6 guides and conveys the surface material 35 directly below the discharge machine 14 as shown in FIG. 3, and also conveys it to the entrance of the cure oven 16 . As shown in FIG. 4a, its specific configuration includes conveyance rollers 7 and 8 that convey the inclined decorative surfaces 35a and 35b of the surface material 35, and regulation rollers 9 of a free roller structure that guide the surface material 35 in the left and right direction. 10, 11 to each main shaft 12,
It was installed on the 13th. That is, the conveyance rollers 7 and 8 are formed to have a diameter that corresponds to the level difference between the decorative surfaces 35a and 35b, and are designed to prevent the decorative surfaces 35a and 35b from being scratched due to friction caused by a difference in circumferential speed. Note that one of the conveyance rollers 7 and 8,
The conveyance roller 7 having a large diameter is driven, and the conveyance roller 8 has a free roller structure, or both rollers have a free roller structure. Further, the regulating rollers 9, 10, 11 are rollers having an outer shape corresponding to the end face shape of the surface material 35, as shown in FIG. This is to restrict displacement of the surface material 35 in the left-right direction. Further, the conveying rollers 7, 8 and the regulating rollers 9, 10, 11 are arranged alternately in the traveling direction of the surface material 35, or in multiple stages so that the rollers do not face each other. Discharge machine 1
4 serves as the core material 37 of the composite board 38, for example, a foamable reaction mixture P (hereinafter referred to as
simply referred to as a mixture) on the back surface 35c of the surface material 35.
For example, a discharge system equipped with a rotating blade (on one side),
It is supplied by either a spray gun method (air, airless) or an injection method. Note that as the mixture P, a thermosetting foamable synthetic resin is used. However, the idle roller 15 is the back material 36
The discharged mixture P is guided onto the concave portion of the laminated surface material 35, and the supporting position is moved up and down or back and forth to cover the mixture P in accordance with the reaction system of the mixture P and move the mixture P like a nip roller. It is an extension of the Its structure is the upper guide roller 15a
is cylindrical, the lower guide roller 15b has the same structure as the conveyance rollers 7 and 8, and the upper and lower rollers 15a,
It is preferable that 15b has a free roller structure. The cure ovens 16 are arranged in series immediately after the exit of the conveyor 6 , and are mainly used for the surface material 35.
and the backing material 36 with the mixture P in the middle of reaction and foaming interposed therebetween, conveyed, molded, cured, and sent out as a continuous composite belt as shown in FIGS. 5 a to c at the exit. It is something. As shown in FIGS. 1, 3, and 6a and 6b, the structure consists of a transport roller group 20 in which a lower roller 19, in which a drive roller 17 and a free roller 18 are coaxially attached to a main shaft 12, is arranged in a ladder shape. and the conveying roller group 20, in which regulating rollers 21, 22, and 23 are arranged between the upper and lower rollers 19 and are supported on a support shaft 24 in a free roller structure, and regulating rollers 21, 22, and 23 are arranged between the upper and lower rollers 19 and guide the left and right side edges and stepped portions of the surface material 35. The front and back materials 35 and 36 are held and conveyed corresponding to the position where the lower roller 19 is present, and the thickness of the composite board 38 is regulated, and
The gas heated by the upper roller group 27 in which the upper roller 26 of the drive roller structure that horizontally guides the backing material 36 and the heater 29 that heats the inside of the cure oven 16 to about 30 to 150 degrees Celsius is transferred to the outside. It is constructed from a cover 34 which is enclosed to prevent leakage. To explain further, the main shaft 12 is inclined so that the outer peripheries of the cylindrical drive roller 17 and the free roller 18 are in contact with the decorative surfaces 35a and 35b of the surface material 35, regardless of the difference in circumferential speed, as shown in FIG. 6a. It is supported on a pedestal (not shown). In particular, the reason why all of the lower rollers 19 were not made into drive rollers was because, as is clear from the figure, there is a difference in diameter between the drive roller 17 and the free roller 18.
This is to eliminate the resulting difference in frictional resistance on the decorative surfaces 35a, 35b, to allow the surface material 35 to be easily conveyed in one direction without being twisted, and to prevent damage to the decorative surfaces 35a, 35b. Further, the upper roller 26 is fixed to the main shaft 28, and the cover 34 has openings at its exit and entrance that are large enough to allow the composite plate to pass through. Further, the main shafts 12 and 28 of the conveyance roller group 20 and the upper roller group 27 are driven by a motor 39 via transmission shafts 30 and 31 and gears 32 and 33, respectively, or a belt (not shown) so that they have the same speed. , 40. The running cutter 41 cuts the composite strip into regular lengths to form the composite plate 38. The backing material 36 functions as a member such as a noncombustible sheet, a waterproof membrane, a heat shielding sheet, a water absorption sheet, a soundproofing sheet, a release sheet, a packing material, a reinforcing sheet, etc., and is made of asbestos paper, kraft paper, asphalt felt, etc. , metal foil (Al,
Pb, Fe), synthetic resin sheet, rubber sheet, cloth sheet, glass cloth, or a combination of one or more of these, or a sheet treated with waterproofing, flame retardant, etc. Consists of etc. In addition, the mixture P includes, for example, a resin for polyurethane foam, a resin for polyisocyanurate foam, a resin for resol type benzyl ether type phenol foam, and a flame retardant, a flame retardant aid (borax, sodium metaborate, calcium carbonate, It is made of one or more of aluminum hydroxide, antimony trioxide, bentonite, pearlite grains, and shirasu balloons.

Next, the operation will be explained.

Currently, the surface material 35 is a colored steel plate, thickness
A composite board 3 as shown in FIG.
Assume that 8 is produced continuously at a rate of 30 mo'min. In addition, the molding machine 5 rotates at 30 min/min,
The inside of the cure oven 16 is heated to 70°C, and the transport roller group 20, regulation roller group 25, and upper roller group 27 are driven by gears 32, 33 by motors 39, 40.
The running cutter 41 is rotated at 30m/min through the
is the moving distance of the composite plate 38 from the decorative surface 3 of the surface material 35.
Measurement is performed by a measuring roller (not shown) that contacts 5a, and a signal for cutting to a regular length is thereby obtained, and the cutting is quickly returned after cutting. Therefore, the color steel plate 35' wound around the uncoiler 2
are sequentially fed to the loop section 4 via the pinch roller 3. Next, the colored steel plate 35' is fed through the loop portion 4 to the forming machine 5, and is formed into the cross section shown in FIG. 2a to form the surface material 35. The surface material 35 fed from the molding machine 5 is guided to the guide rollers 15 via the conveyor 6 . During this process, the mixture P is discharged from the discharge device 14 into the concave portion on the back surface of the surface material 35.
Next, the back material 36 is placed on the mixture P via the upper roller 15a of the guide roller 15 to cover the back surface of the surface material 35, and the mixture P is placed in the cure oven 16 with the front and back materials 35 and 36. Delivered in a sandwiched state. Note that the guide roller 15 not only guides the back material 36 onto the surface material 35, but also guides the back material 36 onto the surface material 35.
The mixture P is also spread. In addition, while the continuous belt having the sandwich structure fed to the cure oven 16 passes through the conveying roller group 20 and the regulating roller group 25, which serve as the mold material, the mixture P reacts and foams, and the mixture P is transferred to the roller group. The composite plate is regulated by a continuous band having a cross-section of a composite plate as shown in FIG. 5a from the outlet thereof. This is cut into regular lengths using a traveling cutter 41 to form a composite plate 38.

What has been described above is only one embodiment of the composite plate manufacturing apparatus according to the present invention, and although not shown in the drawings, heaters are interposed between the loop portion 4 and the forming machine 5 and between the forming machine 5 and the conveying machine 6 . Peeling and cracking of the cosmetic coating,
It is also possible to prevent or reduce the occurrence of shrinkage, and to make foaming of the mixture P more efficient. Further, the regulating rollers 9, 10, 21, 22 are
It is also possible to form a cylindrical shape or the like on the side surface of the roller 5 depending on the shape, or to remove the regulating rollers 10 and 22.

(Effects of the Invention) As described above, according to the composite plate manufacturing apparatus according to the present invention, a composite plate having a step that could not be manufactured with a conventional apparatus and having an inclined decorative surface portion can be manufactured using a molded core material of a surface material. supply, lamination of backing material, then regulation by rollers, and conveyance smoothly.
Moreover, it has the feature that it can be produced at high speed and in a fixed length without damaging the decorative surface.

[Brief explanation of the drawing]

1 and 3 are a side view and a plan view showing an embodiment of the composite manufacturing apparatus according to the present invention, FIGS. 2a to 2h are explanatory diagrams showing an example of molding the surface material, and FIGS. 4a and b are cross-sectional views taken along lines A-A and B-B in Fig. 3, and Fig. 6.
Figures a and b are cross-sectional views taken along line CC and line D-D in Figure 3, and Figures 5 a to c are explanatory diagrams showing an example of a composite plate. 1 ...Metal thin plate feeding section, 4...Loop section, 5...
... Molding machine, 6 ... Conveyance machine, 7,8 ... Conveyance roller, 9, 10, 11 ... Regulation roller, 14 ... Discharge machine, 16 ... Cure oven, 20 ... Conveyance roller group, 25 ... Regulating roller group, 34...cover, 35...surface material, 36...back material, 41...
Katsuta.

Claims (1)

[Claims] 1. A thin metal plate consisting of an uncoiler and a pinch roller for feeding the thin metal plate in an apparatus for manufacturing a composite plate in which a core material made of synthetic resin foam is integrally interposed between the front material and the back material made of the thin metal plate. A feeding section, a loop section for accommodating the thin metal sheet supplied from the feeding section in a slack state and adjusting between the front and back processes, and a stepped section between the inclined decorative surfaces of the thin metal sheet in the longitudinal direction. A conveying machine consisting of a molding machine that molds into a parallel gutter-like cross section, a conveyance roller that comes into contact with the decorative surface of the surface material sent out from the molding machine, and a regulation roller that guides the side edges and step portions of the decorative surface. , a discharge machine that supplies the core material raw material to the back side of the surface material, a guide roller that guides the back material so as to cover the laminated foam raw material, a cure oven arranged in series with the above-mentioned conveyance machine, and a feeder from the cure oven. The curing oven is equipped with a running cutter that cuts a continuous strip into a fixed length, and the curing oven has a cylindrical drive roller that contacts one of the decorative surfaces and a free roller that is mounted on a main shaft supported at an angle corresponding to the inclination of the decorative surface. A large number of installed lower rollers are arranged in a ladder shape, and the above-mentioned regulating roller is interposed between the lower rollers, and a drive roller that corresponds to the lower rollers and horizontally guides the back material. What is claimed is: 1. A composite board manufacturing device comprising: an upper roller group; a heater for heating the inside of the cure oven; and a cover for suppressing leakage of heated gas to the outside.