JPS59225228A - Manufacturing of floor heating panel having connection groove - Google Patents

Abstract

PURPOSE:To bury a heat exchanger pipe in an upper surface of a heat insulating base material in such a way as it shows a zig-zag form, arrange a metallic heat radiating plate and a back plate on both the upper and lower surfaces of the base material so as to make an integral assembly thereof and to form some connecting grooves around the circumferential sides thereof. CONSTITUTION:A heat insulating base material 1 is made of a thermo-adhesive foaming styrol and a heat exchanger pipe 2 bent and formed to have such a shape as corresponding to the pipe fitting grooves 6 is fitted and arranged in the grooves which are formed in advance on the upper surface of the base material. A plate-like metallic heater plate 3 and a back plate 4 formed by aluminum plate etc. are overlapped on both the upper and lower surfaces of the heat insulating base material 1 and then they are arranged in a forming die 7. Entire assembly is heated and pressurized from both the upper and lower surfaces thereof by a hotpress machine. Under this heating and pressurizing operation, the surfaces of the heat insulating base material 1 are thermally melted, their adhesive characteristics appear to cause the heat radiating plate 3 and the back plate 4 to be integrally connected to each other, and at the same time the heat exchanger pipe 2 is closely contacted with the lower surface of the heating plate 3. And under this thermal pressurizing operation, a secondary foaming part of the heat insulating base material 1 is flowed into the clearance to fill the space 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a floor heating panel, particularly a heat-insulating panel made of foamed synthetic resin, etc., in which heat exchange pipes such as hot water circulation pipes or heat pipes are embedded in the upper surface of the panels. The present invention relates to a method of manufacturing a floor heating panel having a structure in which the entire surface is covered with a metal heat sink, and if necessary, a back plate made of metal or the like is integrally bonded to the lower surface side.

Conventionally, this type of floor heating panel has generally used particle board, foamed polyurethane, foamed polystyrene, etc. as a heat insulating base material.

When constructing such panels, the number of floors below the floor is 1.
If there is no interlocking joining means between adjacent panels that are laid side by side, a step is likely to occur on the top surface.

For this reason, it is preferable that a joining part such as a joining groove or a protruding strip be formed on the circumferential side of the panel in order to realize a real joining or a real joining. However, in panels where particle board is used as the heat insulating base material, the joining grooves must be separately cut into each panel or the heat insulating base material by secondary processing, which is cumbersome to manufacture. In addition, in panels using polyflex foam or the like as a heat insulating base material, it is necessary to form joints by separately attaching a grooved edge frame to the peripheral edge, which has the disadvantage of increasing costs.

In order to solve the problems mentioned in section 2 above, this invention provides a floor heating system in which joining grooves can be formed on the circumferential side of the heat insulating material at the same time as the panel is fired to join and integrate the constituent members. The present invention aims to provide a method for manufacturing flannel, in which heat-adhesive foamed polystyrene is used as the heat-insulating base material, and a heat-pressing operation is performed to bond the upper heat dissipation plate, etc. Therefore, by effectively utilizing the secondary foaming phenomenon of the heat insulating base material that occurs at this time, which is generally considered to be harmful, the desired bonding grooves can be simultaneously formed on the peripheral surface of the base material17. This is what I did.

Hereinafter, this will be further explained based on the illustrated embodiment.
Explain.

Example 1 This example is shown in FIGS. 1 to 5, and '! :
As shown in Fig. JS4, the state of the finished product is as follows:
Heat exchange pipes (2) are buried in a serpentine arrangement on the two sides of the insulation base material (1), and flat metal heat sinks (3) and back plates (4) are polymerized on both lower surfaces of the insulation base material (1). The objective is to manufacture a floor heating panel +1'l in which a joining groove (5) is formed around the entire circumference of the circumferential side of a heat insulating base material (1).

In manufacturing the panel CP+, the heat insulating base material (1) is made of heat-adhesive foamed polystyrene, and as shown in FIG.
) A heat exchange pipe (2) made of copper, aluminum, etc. bent into a corresponding shape is placed in a fitted state.

Then, the heat-insulating base material (
A flat metal heat dissipating plate (3) made of an aluminum plate or the like and a back plate (4) are stacked on the upper and lower surfaces of 1), and these are separately framed into a corresponding shape as shown in Figure 2. Place it in the formwork (7).

Here, the molding frame (7) used has a groove-forming protrusion (8) formed around the entire circumference at the middle of the height of its inner circumferential surface. Therefore, the heat insulating base material (1) -11 is designed such that its dimension (al is the same as that of the formwork (7)) so that it fits snugly into the formwork (7) inside the groove forming protrusion (8). It is formed smaller than the inner dimension (b) of.

Note that it is desirable that the groove-forming protrusions (8) be formed into a slightly tapered shape so that the panel can be easily removed from the mold after manufacturing.

Each panel component f is placed inside the molding frame (7) as described above.
After placing i+ +21 +31 +41, use a real press machine to press 4 as shown by the arrow (c) in Figure 2.
．． 1.Heat and press the whole thing from both sides. Through this heat-pressing operation, the surface of the heat-insulating base material (1) made of styrofoam is thermally melted, develops adhesive properties, and is bonded and integrated with the heat dissipation plate (3) and back plate (4) on both the front and back sides. , insulation crystal; material (
As the thickness of the heat exchange pipe (2) is reduced, the heat exchange pipe (2) is brought into close contact with the lower surface of the heat sink (3). Moreover, due to this heat-pressing operation, the heat-insulating base material (1) made of styrene has a tendency to cause secondary foaming in the heated region. This secondary foaming is prevented from progressing in the areas where it is suppressed by the heat dissipation plates (3) and the back plate (4) on both the front and back sides, but the progress of the secondary foaming is prevented in the areas where it is suppressed by the heat dissipation plates (3) and the back plate (4) on both the front and back sides, but the progress of the secondary foaming is prevented in the areas where it is suppressed by the groove forming protrusions of the formwork (7). Since there is a space +9+ +9+ above and below the strip (8), the secondary foaming proceeds towards this space, and as shown by the arrow (I3) in FIG. 3, the secondary foaming portion of the heat insulating base material (1) enters and fills the space (9).

Therefore, after finishing the above heat-pressing operation and cooling, the formwork ('II
By not removing the panel υ, it is possible to obtain the floor heating panel σ' as the desired product as shown in FIG.

Therefore, when installing the floor heating panel (P) having the joining groove (5) on the circumferential side, as shown in FIG. +5
By inserting the workpiece (10) into 1, the state is joined.

In addition, in the above-mentioned heat-pressure operation, the heating temperature was 120
℃ to about 250℃, particularly preferably about 150 to 180℃, while the pressure is preferably in the range of about 01 to 21℃, and the time is preferably in the range of about O'5 to 5 minutes. The thickness reduction rate of the heat insulating base material ( ) due to pressure is preferably about 30%.

Example 2 This example is shown in FIGS. 6 to 9.
As seen in the product condition in the figure, the heat sink on the surface +13
1 and opposite bent edges (14) on the periphery of the lower back plate (14).
3a) (14a) are formed, thereby further increasing the strength, and a joint groove (15) is formed in the middle part in the length direction of each side of the four circumferences. Cape Taneno Misaki) is produced.

When manufacturing the floor heating panel, the heat insulating base material (11) is attached to each side of the molding frame 07+, as shown in FIG.
(A notch (lla) is provided at the middle part in the length direction of the four circumferential side edges in correspondence with the groove-forming protrusion tap of the thread.
As shown in FIG. 7, this heat insulating base material 01) is placed in a molding frame (Iη) in combination with other panel constituent members [12) +131 (14), and hereinafter f+i
As in the case of Example 1 of Section J, heat fusion bonding was performed by applying heat-pressing operation using a hot press, and bonding grooves ( 1
By realizing the formation of ω, the desired floor heating panel (b) shown in FIG. 9 can be obtained.

In addition, in carrying out this invention, ``lower back plate +41
+14+ is sometimes omitted.

According to this invention, as described in 1, heat-adhesive foamed polystyrene is used as the heat-insulating base material, and by making this also function as an adhesive, the heat sink plate on the surface can be joined and integrated by a simple heat-pressing operation. Compared to the case where a separate adhesive is applied and the heat sink is bonded, the manufacturing process can be simplified and productivity can be improved. Of course, the heat dissipation plate is bonded and integrated with the heat insulating substrate.Using the heat-pressing operation, the resulting secondary foaming phenomenon of the heat insulating base material is used to simultaneously create bonding grooves on the circumferential side of the panel. As a result, a groove is formed by cutting a bonding groove separately by secondary processing.
Compared to the case where a joint edge frame with grooves is attached to the periphery of the panel, it is possible to obtain a floor heating panel with excellent joint characteristics during installation, which is much more advantageous in terms of productivity and cost. It is effective.

[Brief explanation of drawings]

1 to 5 show a first embodiment of the present invention. FIG. 1 is a perspective view showing a panel component and a molding frame in a separated state, and FIG. 2 is a perspective view of a panel component. Figure 3 is a partial cross-sectional view showing how the bonding grooves are formed by secondary foaming of the heat-insulating base material during the heat-pressing process, and Figure 4 is the floor of the product. FIG. 5 is a partially cutaway perspective view of the heating panel, and is a cross-sectional view illustrating the joined state of the panel during use. Moreover, FIGS. 6 to 9 show the entire second embodiment of the present invention, FIG. 6 is a perspective view corresponding to FIG. 1, and FIG. A plan view showing the arrangement state in the formwork, dashi 8
The figure is a sectional view corresponding to FIG. 3, and FIG. 9 is a partially cutaway perspective view of the floor heating panel of the product. (P) (l...floor heating panel, (11(111-
Ii Thermal base material, (21 (12... heat exchange pipe, +3
1 +131... Metal heat sink, +41141... Back plate, (5) α9... Joining groove, (7) aη... Formwork for forming, +81 t181... Projection for groove forming. that's all! :54 1 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] When stacking a metal heat sink on a heat-insulating Murakami made of heat-adhesive foamed polystyrene with a heat exchange pipe fitted into the upper surface, and fusing and joining them together by heat-pressing, the above-mentioned heat-insulating base material is , by placing it in a molding form having groove-forming ridges on its inner peripheral surface and performing the above-mentioned heat-pressing operation, the space above and below the groove-forming ridges is filled by secondary foaming generated in the heat insulating base material. 1. A method for manufacturing a floor heating panel having a bonding groove, characterized in that the bonding groove is formed on the circumferential side by filling the portion with a secondary foamed portion.