JPS6057135A - Manufacturing process of heating panel - Google Patents

Abstract

PURPOSE:To make a heating panel by a method wherein a synthetic resin sheet is press fitted to a rear surface of outer ornamental metallic plate and an outer surface of a thermal medium flowing pipe so as to prevent foamed synthetic resin from being flowed inbetween the outer ornamental plate and the thermal medium flowing pipe. CONSTITUTION:The rear surface of the outer ornamental metallic plate 2 has some circumferential wall 12 at four corners thereof and the thermal medium flowing pipes 3 are temporarily fixed. The outer ornamental plate 2 is mounted on the heating block 11 with its surface being directed downward. A synthetic resin sheet 13 is mounted on it. When the outer ornamental plate 2 is heated to a proper temperature, a space enclosed by the outer ornamental plate 2 and the synthetic resin sheet 13 from the opening 14 is suctiond with vacuum, the synthetic resin sheet 13 is heated and adhered along the rear surface of the outer ornamental plate 2 and the outer surface of the thermal medium flowing pipe 3, and the extended portion 13a is cut. Then, the rear abutment member 4 and the pressing plate 7 are overlapped on the outer ornamental plate 2 and pressed by the press 9, the synthetic resin mixed with foam material is poured into a space between the synthetic resin sheet 13 and the liner 14 from the opening 14 and then foamed and cured. In this way, the heating panel 1 is manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a heating panel for heating a room through a heating medium.

As shown in Figures 1 and 2, as a type of heating panel (1) that allows heat medium to pass through, the back side of the gold maple cover plate (2) covering the front and circumferential sides of the heating panel (1) is used. Copper pipes with good thermal conductivity and long life are placed in contact with heat medium flow pipes (3) 7, and the back of the heating panel (1) is covered with a backing material (4) such as resin-impregnated paper.
In manufacturing such a heating panel (1), there is one in which a heat insulating layer (5) such as foamed urethane resin is formed in the space surrounded by the exterior board (2) and the backing material (4). , Conventionally, as shown in Fig. 3, after arranging a heat medium flow pipe (3) on the back surface of the exterior plate (2), the heat medium flow pipe (3) is placed between the back surface of the exterior plate (2) and the heat medium flow pipe (3). If there is even a slight gap between the two, the foamed synthetic tree 11if will enter the gap and expand, forming a heat insulating layer. Therefore, apply Teifune tape (6) over the entire length of the heat medium distribution pipe (3). Then, as shown in Figure 4, place the K11ll material (4) on this exterior plate (2) on which the heat medium flow pipe (3) is arranged. A presser plate (7) whose spacing is maintained on top by a spacing holder (8) equal to the thickness of the heating panel (1)
1. Stack these in multiple stages, process them from the top and bottom with braces (9) to prevent the foamed synthetic resin from leaking out, and then insert the foamed material from the opening formed in the peripheral wall of the exterior plate (2) as shown by the arrow. Synthetic resin such as urethane resin mixed with urethane resin is injected, and this is foamed and solidified.

However, with this method, the work of pasting the sealing tape (6) is done manually, which requires a lot of time and effort, and the cost of materials for the sealing tape (6) is also high, resulting in a large amount of cost. . It is also conceivable to fix the heat medium flow pipe (3) with an adhesive, but this similarly requires considerable effort and materials, and it is difficult to glue the heat medium flow pipe (3) completely without gaps over the entire length.

In addition to the above-mentioned conventional problems, the present invention eliminates the need for a heat insulating layer of foamed synthetic resin to be formed between the exterior plate and the heat medium flow pipe, and requires less time and effort. The purpose of the present invention is to provide a method of manufacturing a heating panel that does not require heating.

For this purpose, in the present invention, a heat medium flow pipe is temporarily fixed on the back side of a metal exterior plate with peripheral walls formed around the four circumferences of the surface side, and a synthetic resin sheet is placed on the opening side of the peripheral wall of this metal exterior plate. ．．
The synthetic resin sheet is pressed onto the back surface of the metal exterior plate and the outer surface of the heat medium flow pipe using fluid pressure, and a heat insulating layer is formed on the synthetic resin sheet by foaming, thereby forming an exterior plate using the synthetic resin sheet. To provide a method for manufacturing a heating panel in which a foamed synthetic resin is injected between a heating medium flow pipe and a heating medium flow pipe.

As the fluid pressure, atmospheric pressure can be used by air suction, or a pressure ff1f body can also be used. In the case of ridges, it can be easily carried out with a simple device by pressurizing a pressurized fluid into a bag having elasticity or flexibility to press the synthetic resin sheet.

Practical examples of the present invention will be described below with reference to FIGS. 5 to 7. In Fig. 5, the metal exterior plate (2) is the same as the conventional one, and the same prefecture (2) is formed around the four peripheries of the back ill @ll, and the metal exterior plate (2) has a Heat medium flow pipes (3) are arranged and temporarily fixed at appropriate intervals with adhesive or other suitable means. This money PI4
Place the outer casing & (2) on the heating table 0 with its front side facing down.
1) At the same time, a synthetic resin sheet α having an area larger than the exterior plate (2) is placed on the upper surface thereof, that is, on the opening side end surface of the peripheral wall 0 pier. This synthetic resin sheet α
[Yes] preferably has heat weldability 1-7 and good adhesion to foamed synthetic resin such as urethane resin. Specifically, it is preferable to use a heat weldable sheet on the lower surface, that is, on the back side of the exterior plate (2). It is preferable to use a laminated sheet whose upper surface, that is, on the side of the heat insulating layer (5), is made of a sheet that has a loose adhesiveness to the foamed synthetic resin. It is also possible to use a sheet in which a heat-sensitive adhesive is applied to the lower surface of a sheet that has good adhesion to the foamed synthetic resin. Next, when the exterior plate (2) is heated to an appropriate temperature, the exterior plate (
Vacuum the air in the space surrounded by 2) and the synthetic resin sheet (to) as shown by the arrow, press the synthetic resin sheet 0 towards the back of the exterior plate (2) at atmospheric pressure, and remove the synthetic resin. As shown in FIG. 7, the sheet α1 is brought into close contact along the back surface of the exterior plate (2) and the outer surface of the heat medium flow pipe (3) and bonded by heating. Thereafter, a portion (13a) protruding from the synthetic resin sheet (21) is cut off. Next, as in the conventional example, as shown in FIG.
4), stack the holding plate (7) on top of it, stack these in multiple stages and pressurize them with a press (9), and then form the opening 04) on the peripheral wall of the exterior plate (2). Resin sheet 0 [Yes]
Synthesis of urethane resin etc. mixed with foaming material as shown by the arrow (☆・1 resin with synthetic resin sheet 03
4) and foam and solidify it.

In this way, the synthetic resin is attached to the exterior plate (2) and the heat medium flow pipe (3).
The exterior plate (2), the heat medium flow pipe (3), the synthetic resin sheet 0, the heat insulating layer (5) made of foamed synthetic resin, and the backing material (4) are integrated without penetrating into the gaps between the A combined heating panel (]) is manufactured.

- In the explanation of Example F, the synthetic resin sheet 0 is used as an exterior plate (
2) Although we have shown a method that uses vacuum suction and atmospheric pressure to press toward the back surface, conversely, pressure 1' such as pressurized gas etc.
It is also possible to press using your body. For example, as shown in the Id and tALA diagrams, a bag made of a rubber sheet with elasticity is replaced with a synthetic resin sheet of 0.1
In addition to placing this bag on top, a synthetic resin sheet of 0υ (
1. By chance, the opposite side is supported by the support plate (to) placed oppositely above the exterior plate (2), and compressed air is pumped into the bag body 0i from the injection port (15a). By expanding this bag body, the synthetic resin sheet α is made into an exterior plate (2
It is also possible to press it against the outer surface of 1 and the heating medium flow treasure (3), and in this case, it can be implemented with a simple device. Furthermore, the bag body 01 is not limited to one made of a sheet having elasticity such as rubber, but may also be made of a flexible sheet folded so as to be inflatable. Further, as in the case of vacuum suction, the synthetic resin sheet may be directly pressed by fluid pressure without using a bag.

According to the heating panel manufacturing method of the present invention, as is clear from the above description, even if thermal bubbles are formed on the back surface of the metal exterior plate, the synthetic resin will enter between the back surface of the exterior plate and the heat medium flow pipe. It is possible to obtain a heating panel with good heat transfer efficiency and long-lasting product variations without any trouble.Moreover, after temporarily fixing the heat medium flow pipe on the back of the exterior plate and distributing the synthetic resin sheet, this can be done. Since it is only pressed using fluid pressure, it has great effects such as dramatically improving work efficiency and reducing manufacturing costs compared to conventional methods.

4. In Figure m1, H9 Ming No. 11 Zo 1 is a plan view of the heating panel, and Figure 2 is A in Figure 1.
, -A sectional view, FIG. 6 is a longitudinal sectional front view when the heat medium flow pipe is fixed in the conventional manufacturing process, FIG. 4 is a schematic longitudinal sectional front view when synthetic resin is injected and foamed, and FIGS. The figure is a longitudinal sectional front view of the heating medium flow tube in an embodiment of the method of the present invention when it is fixed, and FIG. 7 is a longitudinal sectional front view of the same fixed state.

(1■1 panel, (2) is a metal exterior plate, (3) is a heating medium flow pipe, (5) is a heat insulating layer, 04 is a peripheral wall, 0 is a synthetic resin sheet.

clear 169

Claims (3)

[Claims] (1) A heat medium flow pipe is temporarily fixed on the back side of a metal exterior plate with peripheral walls formed around the four circumferences of the back side, a synthetic resin sheet is placed on the opening side of the peripheral wall of this metal exterior plate, and the synthetic resin sheet A method for manufacturing a heating panel, comprising: pressing the metal exterior plate onto the back surface of the metal exterior plate and the outside surface of the heat medium flow pipe using fluid pressure, and forming a heat insulating layer on the synthetic resin sheet by foaming. (2) The heating panel manufacturing method according to claim 1, wherein atmospheric pressure by vacuum suction is used as the fluid pressure. (3) The heating panel manufacturing method according to claim 1, wherein a pressure fluid is used as the fluid pressure.