JPH06342B2 - Roll conveyor curing furnace type siding board manufacturing method and apparatus - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method and an apparatus for manufacturing a siding board used for the interior and exterior of a building, a structure, etc., and particularly to a method and an apparatus for manufacturing a roll conveyor curing furnace type siding board. It is about.

(Prior Art) Conventionally, as a method and an apparatus for manufacturing a siding board used for the interior and exterior of a building, a structure, etc., a metal plate filled with a foaming step heating material is sandwiched from above and below by a caterpillar (registered trademark) or a steel belt. A so-called caterpillar (registered trademark) type in which foaming is performed by a heating or heating device, and a metal plate filled with foamed heat insulating material is fed between roll conveyors arranged vertically in a curing furnace, There is a so-called roll conveyor curing furnace type in which a foam insulating material is foam-cured while a metal plate is sandwiched between roll conveyors.

As the above caterpillar (registered trademark) formula, for example, as in Japanese Patent Publication No. 62-34526, a metal hoop material is continuously fed from an uncoiler to a molding machine and molded into a predetermined cross-sectional shape, A synthetic resin foam forming material is applied, a back surface material (sheet-like material) is supplied to the applied surface, and it is nipped from above and below by a double conveyor device consisting of caterpillar (registered trademark) or steel belt to heat or It is known that the raw material for foam molding is foamed by a heating device, and as a roll conveyor curing furnace type, for example, as in Japanese Patent Publication No. 58-58230, embossing is applied to the back surface. Pour the creamy urethane stock solution into the recess on the back of the metal plate, and use a nip roll through the backing paper so that the stock solution fills the embossed recess. After uniformizing by pressing, foaming is performed in the curing furnace, and the urethane layer in the middle of foaming is pressed from above and below by the thickness control roll provided in the curing furnace to control the foaming thickness to a desired thickness. Those that have been made are known.

(Problems to be solved by the invention) However, in the former case, in the former case, since the metal plate filled with the foamed heat insulating material by the caterpillar (registered trademark) or the steel belt is sandwiched from above and below,
If the cross-sectional shape of the metal plate is flat, uneven, curved, etc., you must use a caterpillar (registered trademark) or steel belt that matches the cross-sectional shape each time. There is a problem that it is not possible to easily produce products of one shape, and in the latter case it is a roll conveyor, so the part located between each roll when foaming the foam insulation material, that is, not sandwiched by the rolls There has been a problem that the metal plate surface of a part is distorted by the foaming pressure and the metal plate is deformed to deteriorate the function of the product.

The present invention solves the above problems and can easily produce products of various shapes in one production line, and the foaming pressure causes the metal plate to be distorted and deformed, thereby lowering the function of the product. It is an object of the present invention to provide a method and an apparatus for manufacturing a roll conveyor curing furnace type siding board which does not exist.

(Means for Solving the Problems) In order to achieve the above object, the present invention allows a metal plate filled with a foam insulating material to pass between the upper and lower roll conveyors arranged in a curing furnace to remove the foam insulating heat material. In a method of manufacturing a roll conveyor curing furnace type siding board that is foamed and cured to form a siding board, during foaming and curing of the foamed heat insulating material, an auxiliary roll arranged so as to be vertically retractable between the lower roll conveyors. It is made to project upward, the lower surface of the metal plate is made to float from the lower roll conveyor surface, and the foam heat insulation material is foamed and hardened. A group of forming rolls for forming a gutter-shaped metal plate having a connecting portion and a required number of groove portions between the connecting portions, and a supply device for supplying a foamed heat insulating material to the concave portion of the gutter-shaped metal plate, In a manufacturing apparatus for a roll conveyor curing furnace type siding board, which comprises a curing furnace equipped with an upper and lower roll conveyor for foam-curing the foamed heat insulating material, it is freely retractable between the lower roll conveyors in the curing furnace via a vertical movement device. Is provided, and when the auxiliary roll is projected, the auxiliary roll is supported so as to be floated from the lower roll conveyor of the gutter-shaped metal plate.

(Embodiment) FIGS. 1 to 5 show an embodiment of the present invention, in which 1 is an uncoiler in which a metal hoop material 2 such as a color iron plate is wound. It is designed to be sent to the process. A forming roll group 3 is used to form the metal hoop material 2 into a trough-shaped metal plate 4 having a required cross-sectional shape. Reference numeral 5 is a supply device for supplying the foamed heat insulating material 6 (for example, novolac type phenol resin or other appropriate material), and 7 is a metal plate preheating device. 8
Is a curing furnace for foaming and hardening the foamed heat insulating material 6, in which the far infrared heat generating material 6 for changing the foamed heat insulating material 6 scattered on the metal plate 4 into a liquid state is in a liquid state. It is provided with a far-infrared heating element 9 for changing and a microwave heating device 10 for foaming the foamed heat insulating material 6 in a liquid state. The foamed heat insulating material 6 and its foaming means in the present invention are not limited to the above.
In addition, it is also possible to use an appropriately known one. Reference numerals 11 and 11 denote roll conveyors arranged in the curing furnace 8, 12 denotes auxiliary rolls arranged between the rolls of the lower roll conveyor 11, and a vertical movement device 13 such as a cylinder It is provided so as to be able to project and retract vertically, and the lower surface 4a of the metal plate 4 is floated above the surface of the lower roll conveyor 11 when protruding upward. Although the vertical movement of the auxiliary roll 12 is not shown in the figure, the vertical movement device 13 is operated smoothly by an appropriate means in synchronization with the loading / unloading operation of the metal plate 4. Of course. 14 is a mounting member of the auxiliary roll 12, 15 is a cylinder rod, 16
Is a slide guide attached to the machine frame 17, 18 is a slide rod, 19 and 19 are support frame members for the upper and lower roll conveyors 11, 11, and 20 and 21 are formed along both longitudinal ends of the metal plate 4. The male and female connecting portions 22 are the same recessed portions. In addition, although the number of the recessed ridges 22 is one in this embodiment, the number and the shape thereof are arbitrary, and accordingly, the number of the auxiliary rolls 12 that support the recessed ridges 22 is also arbitrary. Of course, it can be selected. A back paper uncoiler 23 supplies the back paper 2 heated by the back paper heating device 24 onto the foamed heat insulating material 6.

Next, the operation will be described. The metal hoop material 2 sent out from the uncoiler 1 is formed into a predetermined shape by the forming roll group 3, heated by the metal plate preheating device 7, and then supplied with the foam heat insulating material 6 by the supply device 5, and the curing furnace 8 is heated. It is liquefied by the far-infrared heating element 9 installed on the inlet side, and is further irradiated with microwaves by the microwave heating device 10 to foam. At this time, the lower surface 4a of the metal plate 4 is raised above the auxiliary roll 12 so that the lower surface 4a of the metal plate 4 is floated above the lower roll conveyor 11 surface. There is no fear of causing distortion or deformation that deteriorates the function of the product. Further, the back surface paper 25 is supplied to the upper surface side of the foamed heat insulating material 6 and the upper roll conveyor 1
Since it is pressed by 1, the upper surface side is finished to be a flat surface. Therefore, when the cross-sectional shape of the metal plate 4 is a semi-circular shape as shown in the figure, the apex of the circular portion does not hit the lower roll conveyor 11 and the circular portion is not deformed. Products can be easily obtained.

(Effect) As described above, according to the present invention, a metal plate filled with a foam insulation material is passed between the upper and lower roll conveyors arranged in the curing furnace, and the foam insulation material is foam-cured to form a siding board. In the method for manufacturing a roll conveyor curing type siding board that is formed, during foaming and curing of the foam insulation material, an auxiliary roll disposed so as to be vertically retractable between the lower roll conveyors is projected upward, and the metal plate is formed. A state in which the lower surface is floated from the lower roll conveyor surface, a foam heat insulating material is used to perform foam hardening and a strip-shaped metal plate at both longitudinal ends between the male and female connecting portions and the connecting portion. Forming rolls for forming a trough-shaped metal plate having a required number of recesses, a supply device for supplying foam insulation to the recesses of the trough metal plate, and foam hardening of the foam insulation In a manufacturing apparatus of a roll conveyor curing furnace type siding board consisting of a curing furnace with an upper and lower roll conveyor, an auxiliary roll that can be retracted through a vertical moving device between the lower roll conveyors in the curing furnace is provided, and Since the lower surface of the gutter-shaped metal plate is supported in a state of being floated from the lower roll conveyor when the auxiliary roll is projected, the lower surface of the metal plate is in the curing furnace during foaming of the foam insulation material. Is pushed upward by an auxiliary roll provided between lower roll conveyors, and foaming is performed in a state of being floated from the lower roll conveyor surface, so that the decorative surface of the metal plate has a product function by foaming pressure. There is absolutely no fear of causing distortion or deformation that decreases, and only changing the number and shape of auxiliary rolls according to the cross-sectional shape of the metal plate. It is possible to perform the work, there is an effect such that can easily produce products of several kinds of shape 1 production line.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a schematic side view of the whole, FIG. 2 is a partially enlarged side view of an essential part, and FIG.
AA arrow view, FIG. 4 is a front view showing another embodiment when the cross-sectional shape of the metal plate is changed, and FIG. 5 is a perspective view showing an example of the product. DESCRIPTION OF SYMBOLS 1 ... Uncoiler, 2 ... Metal hoop material, 3 ... Forming roll group, 4 ... Metal plate, 5 ... Supply device, 6 ... Foam insulation, 7 ...
Metal plate preheating device, 8 ... Curing furnace, 9 ... Far infrared heating element, 1
0 ... Microwave heating device, 11 ... Roll conveyor, 12
... Auxiliary roll, 13 ... Vertical movement device, 14 ... Mounting member, 1
5 ... Cylinder rod, 16 ... Slide guide, 17 ...
Machine frame, 18 ... Slide rod, 19 ... Bearing frame, 20, 21
... male / female connecting portion, 22 ... concave portion, 23 ... back paper uncoiler, 24 ... back paper heating device, 25 ... back paper.

Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical indication location B29L 9:00 4F 31:10 4F (72) Inventor Ryusaku Shimada 3-12-2 Nihonbashi, Chuo-ku, Tokyo Toho Seat Frame Co., Ltd. (72) Inventor Yuji Nomura 3-22 Matsubara, Soka-shi, Saitama C-22-401

Claims (2)

[Claims] 1. A roll conveyor curing furnace type in which a metal plate filled with a foam insulation material is passed between upper and lower roll conveyors disposed in a curing furnace to foam and cure the foam insulation material to form a siding board. In the method of manufacturing a siding board, during foaming and hardening of the foam insulation material, the auxiliary rolls that are vertically arranged between the lower roll conveyors are projected upward, and the lower surface of the metal plate is the lower roll conveyor surface. A method for manufacturing a roll conveyor curing furnace type siding board, characterized in that the foam insulating material is foamed and cured without being further floated. 2. A group of forming rolls for forming a strip-shaped metal plate into a trough-shaped metal plate having male and female coupling portions at both ends in the longitudinal direction and a required number of recesses between the coupling portions, and the trough. In a manufacturing apparatus of a roll conveyor curing furnace type siding board, which comprises a supply device for supplying a foamed heat insulating material to the concave portion of the metal plate and a curing furnace having upper and lower roll conveyors for foaming and hardening the foamed heat insulating material, the curing An auxiliary roll that can freely move in and out via a vertical movement device is provided between the lower roll conveyors in the furnace, and the lower surface of the gutter-shaped metal plate is supported by the lower roll conveyors when the auxiliary rolls protrude. An apparatus for manufacturing a roll conveyor curing furnace type siding board characterized in that