JPH0647263B2 - Heat insulation panel manufacturing method - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a method of manufacturing a heat insulating panel having a substantially U-shaped covering piece fitted on one side to a mountain portion on the other side.

[Prior art]

Conventionally, a foamed resin material is prepared by injecting a foamable resin material between metal hoop materials such as a colored zinc iron plate, a colored aluminum plate, a colored aluminum-zinc alloy plated steel plate, a stainless steel plate, a titanium steel plate and heating the metal plate. To form a heat-insulating long plate material by filling a foamable resin layer between the metal hoop materials and cutting the heat-insulating long plate material to a predetermined size, so that one side portion to the other side as shown in FIG. The heat insulation panel A having the substantially U-shaped covering piece 9 fitted to the mountain portion 4 of the portion is manufactured.

[Problems to be Solved by the Invention]

Conventionally, the covering piece 9 is formed before the injection of the foamable resin material, and therefore the double conveyor 5
In the foaming process of the foamable resin material by the method, the side seals 6 seal the side portions of the metal hoop materials 1, 2 with the covering piece 9 obstructing, and the line speed must be reduced, which requires time and labor and productivity. Not only is it significantly reduced, but also a perfect seal is not possible, the foamable resin material leaks, and side finishing processing is required, and it is not possible to manufacture a heat insulating panel A of uniform quality. Moreover, there is a problem that production cannot be performed depending on the foamable resin material used. The present invention has been made to solve the above problems, and an object thereof is to be able to completely seal the side portion of the metal hoop material in the foaming step, and to significantly improve productivity. It is in.

[Means for Solving the Problems]

The present invention relates to a pair of metal hoop members 1 and 2 which are vertically opposed to each other.
Is supplied to form a plurality of ridges 4 on the lower metal hoop material 2 by means of the ridge forming roll 3, and then the upper and lower metal hoop materials 1 and 2 are injected with a foamable resin material between them to form a double conveyor. 5 and the side seal conveyor 6 seals the side portions of the metal hoop materials 1 and 2 to foam the foamable resin material, thereby filling the foamed resin layer 7 between the metal hoop materials 1 and 2 to elongate the heat insulation. The plate material 8 is formed, and the heat insulating long plate material 8 is cut into a predetermined size to have the mountain portion 4 on one side on the other side.
In a method of manufacturing a heat insulating panel having a substantially U-shaped covering piece 9 fitted to a metal hoop material 1, a pair of metal hoop materials 1 and 2 are attached to a lower metal hoop material 2 and one side edge of the metal hoop material 2 is an upper metal hoop material 1. Of the metal hoop material 2 below the heat insulating long plate material 8 by injecting the foamable resin material in a state of protruding laterally from one side edge and carrying it into the double conveyor 5 to form the heat insulating long plate material 8. The present invention is characterized in that a horizontal protruding piece 10 protruding from a side edge is formed into a substantially U-shape by a side forming roll 11 to form a covering piece 9, and the above problem is solved by this configuration. is there. [Operation] One side edge of the lower metal hoop material 2 is the upper metal hoop material 1
Since the foaming resin material is injected in a state of protruding laterally from one side edge and is carried into the double conveyor 5 to form the heat insulating long plate material 8, the side seal conveyor 6 is horizontally projected in the foaming process by the double conveyor 5. By running on the piece 10, the side portions of the metal hoop materials 1 and 2 can be reliably and completely sealed, and the foamable resin material does not leak out.
The heat insulating panel A of uniform quality can be efficiently produced. The present invention will be described below based on embodiments shown in the accompanying drawings. Examples of the metal hoop materials 1 and 2 include a zinc iron plate, an aluminum plate, a galvanized steel plate, an aluminum zinc alloy plated steel plate, a stainless steel plate, a titanium steel plate, and the like, or those obtained by coloring these metal plates with a general paint, a vinyl chloride resin, Those coated with acrylic film or fluororesin are used. As shown in FIG. 1, the metal hoop materials 1 and 2 are wound on payoff reels 12 and 13, respectively. The metal hoop materials 1 and 2 are supplied from the pay-off reels 112 and 13 to the forming roll 14 and the mountain portion forming roll 3, respectively. As shown in FIG. And the both sides are bent and formed to form the insertion protrusion 19 and the insertion recess 20, the metal hoop material 2 is formed with a plurality of ridges 4 by the ridge forming roll 3, and both sides are bent. The locking recess 21 is formed on the inner surface of the side mountain portion 4 by being molded. Next, the metal hoop materials 1 and 2 are preheated to 23 to 45 ° C. in the preheating chamber 16, and thereafter, the polyol, the isocyanate, the catalyst, the foaming agent and the like are mixed between the metal hoop materials 1 and 2 by the injection device 17. A foaming resin material such as hard urethane foam, isocyanurate foam, or phenol foam is injected and carried into the double conveyor 5. After that, the foamable resin material foams while moving between the double conveyors 5 heated by a hot air duct (not shown) while the side portions of the metal hoop materials 1 and 2 are sealed by the side seal conveyor 6. The foamed resin layer 7 is filled between the metal hoop members 1 and 2 to form the heat insulating long plate member 8. Reference numeral 26 is a side seal conveyor storage device. In this case, the metal hoop materials 1 and 2 are injected with the foamable resin material in a state where one side edge of the lower metal hoop material 2 is projected more laterally than one side edge of the upper metal hoop material 1. As shown in FIGS. 5 and 5, the horizontal protruding piece 1 in which the side seal piece material 6 a of the side seal conveyor 6 protrudes from one side edge of the lower metal hoop material 2
0 side by side, the side seal material 18 such as aluminum foil paper, aluminum foil, film such as plastic film, EPT, foam neoprene rubber, packing such as kraft paper is pressed against both side surfaces of the metal hoop materials 1, 2. The foamable resin material is prevented from leaking. Metal hoop material 1,
2 is heated in the range of 20 to 50 ° C. In this way, the heat insulating long plate member 8 in which the horizontal protruding piece 10 projects from the one side edge of the lower metal hoop member 2 is formed. Next, the horizontal projecting piece 10 of the metal hoop material 2 on the lower side of the heat insulating long plate material 8 is a one-stage roll 11a of a side forming roll 11 which is a three-stage forming roll as shown in FIGS. 6 to 8. Two-stage roll 11b
Next, the covering piece 9 is formed by being formed into a substantially U shape in three steps by the three-stage roll 11c, and the tip of the covering piece 9 is bent inward to form the locking piece 22. The heat insulating long plate material 8 is cut into a predetermined size by a cutting device 27 which is a band saw, and a heat insulating panel A as shown in FIG. 9 is manufactured. The heat insulating panel A is sequentially conveyed by the conveyor 23 and is stacked at a predetermined place. This heat insulating panel A is mainly used as a roofing material, and as shown in FIG. 10, the heat insulating panel A is placed on the purlin 24 with the lower side as a surface, and adjacent heat insulating panels A are packing 28 on the sides. Are interposed and abutted, and the covering piece 9 of one heat insulating panel is provided with the mountain portion 4 on the side of the other heat insulating panel A.
, The locking piece 22 is locked in the locking concave portion 21, the insertion convex portion 19 is inserted into the insertion concave portion 20, and the mounting texture 25 is driven from the covering piece 9 into the purlin 24 and fixed.

【The invention's effect】

The present invention supplies a pair of metal hoop materials facing each other up and down to form a plurality of ridges on a lower metal hoop material by a ridge forming roll, and then foams the upper and lower metal hoop materials between them. A resin material is poured into a double conveyor, and a side seal conveyor seals the sides of the metal hoop material while foaming the foamable resin material to fill the foamed resin layer between the metal hoop materials and insulate the long plate material. And a method for producing a heat-insulating panel having a substantially U-shaped covering piece that is fitted to a mountain portion of the other side on one side by cutting this heat-insulating long plate material into a predetermined size. The metal hoop material is injected with the foamable resin material with one side edge of the lower metal hoop material protruding sideways from the one side edge of the upper metal hoop material, and the metal hoop material is carried into the double conveyor to install the heat insulating long plate material. Formed and insulated gold underside of long plate Since a horizontal protruding piece protruding from one side edge of the hoop material is formed into a substantially U-shape by a side forming roll to form a covering piece, the side seal conveyor should be positioned on the horizontal protruding piece in the foaming process by the double conveyor. By running, the side portion of the metal hoop material can be reliably and completely sealed by the side seal conveyor without lowering the line speed, and the productivity can be improved. Since it does not leak out, it is possible to efficiently produce an insulating panel of uniform quality.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of an apparatus for carrying out an embodiment of the present invention, FIG. 2 is a schematic plan view of the same, and FIGS. 3 (a) and 3 (b).
Is a cross-sectional view showing a metal hoop material formed in the same as above,
4 and 5 are sectional and perspective views showing a side seal by the side seal conveyor in the same as above, and FIGS. 6, 7 (a) (b) (c) and FIG. 8 are by side forming rolls. Drawing for explaining formation of a covering piece, Drawing 9 is a sectional view showing a heat insulation panel manufactured by the above, Drawing 10 is a sectional view showing an example of construction of the above-mentioned heat insulation panel, A is a heat insulation panel,
1, 2 is a metal hoop material, 3 is a mountain portion forming roll, 4 is a mountain portion, 5 is a double conveyor, 6 is a side seal conveyor,
7 is a foamed resin layer, 8 is a heat insulating long plate material, 9 is a covering piece, 10
Is a horizontal projecting piece, and 11 is a side forming roll.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B29L 9:00 4F

Claims (1)

[Claims] 1. A pair of upper and lower metal hoop materials are supplied to form a plurality of ridges on the lower metal hoop material by a ridge forming roll, and then the upper and lower metal hoop materials are foamed therebetween. Insulating resin material is injected into a double conveyor and the side seal conveyor seals the sides of the metal hoop material while foaming the foamable resin material to fill the foamed resin layer between the metal hoop materials and heat insulation long A method for producing a heat insulating panel having a plate material, cutting the heat insulating long plate material to a predetermined size, and having a substantially U-shaped covering piece fitted on the mountain portion of the other side on one side, Insulating metal hoop material is injected into the double conveyor with one side edge of the lower metal hoop material protruding sideways from one side edge of the upper metal hoop material and loaded into the double conveyor to insulate the long plate material. Forming the bottom of the insulating long plate material Method for manufacturing a thermal insulation panel, characterized in that the horizontal projection piece projecting from one side edge of the genus hoop material molded in a substantially U shape by the side forming roll to form a cover strip.