JPS61153397A - Connecting method of corner part of heat exchanging pannel - Google Patents

Abstract

PURPOSE:To enable simultaneous processing of sealing of edge parts and corner parts without using an exclusive corner part sealing material, by a method wherein after a sealing material is stacked each other and is temporally held by a press jig, it is pressed and tightened and heated, and the sealing material is welded to the panel in a body. CONSTITUTION:Sealing materials 2, 2 are stacked at the corner part A of the heat exchanging pannel 1, and triangular bag type bodies 3 of a press jig are covered at the corner parts A. This bag type bodies 3 are made of sheet, anti-heat textile or bonded textile and, furthermore, metal foil or metal net etc. having heat resistance which will not melt while next press and heating, and two sides 3a, 3b of triangular breadth folded in two are closed by adhesion or stitching, and remained one side 3c is opened. Next, when the heat exchange pannel 1 is pressed and heated between a pair of heat plates 4, 4, seal material 2 is melted and welded to the edge part of the pannel 1 in a body, especially at the corner part A of the pannels, stacked seal materials 2, 2 are welded at the condition being restrained by bag type bodies, so the sealing properties are improved. Thus, the productivity is improved and the heat deterioration of resin is prevented and the reliability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for joining corners of heat exchange panels used for floor heating, wall heating, etc.

[Background technology]

Recently, it has been proposed to use a heat exchange spring /I/1 as shown in FIG. 6 for floor heating and the like. This heat exchange spring A
/1 is a plastic sheet made of a thermoplastic resin with a woven fabric 8 pasted on the inner surface, a wavy vertical monofilament made of Goufstick 10 and a wavy monofilament lit interposed between two sheets of glue 9. It is a flexible mapto with an eye and a water passage 12 through which water (heat medium) passes is formed inside.

FIG. 7 shows a floor heating system using such a heat exchange panel 1. This is made by joining two panels 1.1 and V-ruling the periphery with Y-4/material 2. Hot water is sent from the supply port 3 to the water passage in both springs 1.1. 12 and is discharged to a discharge port 14.

As shown in FIG. 8, the sealing material 2 is a thermoplastic resin molded product having a substantially groove-shaped cross section, and is attached to the edge of the spring v1, pressed and heated, and melted and bonded to the panel edge. Ru. At this time, the sealing of the corner A of the spring /I/1 in FIG. 7 was carried out as shown in FIGS. 9 and 10. That is, after heat-welding the edges of the spring/vl except for the corner A with the sealing material 2, a triangular bag-shaped sealing material 15 made of the same material as the corner AK sealing material 2 is covered, and the seal material 15 is pressed and heated to form the seal AI4. ;Weld t15.

However, in this joining method, sealing the edges with the sealant 2 and sealing the corner A are separate processes, and since the pressing and heating is repeated twice, the sealant 2 and the panel There was a risk that 1 would deteriorate due to heat. Moreover,
The conventional sealing material 2 has poor adhesion at curved portions, etc., and cannot provide reliable sealing, and a special corner sealing material 15 is required.

[Purpose of the invention]

The purpose of this invention is to simultaneously seal edges and corners without using a special corner sealing material*
It is an object of the present invention to provide a method for joining corners of a heat exchange panel, which can be performed at the same time, and which improves the reliability of the seal.

[Disclosure of the invention]

The method of joining the corners of a heat exchange panel according to the present invention is to arrange a thermoplastic deonutic sheet on both sides, form a heat medium passage inside, and fit a thermoplastic approximately groove-shaped sealing material on the periphery. A method for joining the corners of the exchange spring V, in which the sealing material is overlapped with each other at the corner of the heat exchange panel and temporarily held with a pressing jig, and then the sealing material is welded and integrated with the spring V by pressing and heating. It is a provisional holding that

In this way, the sealing materials overlapped with each other at the corner portions are temporarily held by the holding jig to prevent the sealing materials from moving during pressing and heating, so that the corner portions can be reliably sealed.

An embodiment of the invention will be described based on FIGS. 1 to 5. Note that the same constituent members as those in the above-mentioned embodiment are given the same reference numerals and the explanation thereof will be omitted.

That is, in the joining method of the present invention, as shown in FIG. Cover part A with a triangular bag-shaped body 3 (presser jig).

This bag-like body 3 is made of a heat-resistant sheet that will not melt during the next heating process, such as a heat-resistant plastic sheet, a heat-resistant woven fabric or non-woven fabric, a composite foil or a wire mesh, etc., as shown in FIG. 2 sides 3 of the triangle folded in half
It has a structure in which parts a and 3b are closed by gluing, suturing, etc., and the remaining side 3C is open.

Thereafter, as shown in FIG. 4, the heat exchange spring v1 is pressed and heated between a pair of hot plates 4.4. In the figure, 5 is a spacer. As a result, the sealing material 2 is melted and integrated with the edge of the spring A/1. In particular, at the panel corner A, the overlapped sealing material 2.2 is attached to the bag-shaped body 3.
Since the welding is performed while being restrained by the , the sealing performance is improved.

In Figure 5, a ↓-shaped jig 6 is used as a holding jig instead of the triangular bag-like body 3. The L-shaped jig 6 also allows the sealing materials 2.2 overlapped at the corner A to be pressed and heated without restricting their movement, so that the same effect as described above can be achieved.

〔Effect of the invention〕

According to this invention, there are the following effects.

(1) Since no special corner sealing material is required, costs can be reduced.

(2) Since the 11-section sealing process and the corner sealing process can be performed simultaneously, productivity is improved.

(3) Since the corner portions only need to be pressed and heated once, thermal deterioration of the resin can be prevented.

(4) Corners can be sealed accurately, improving the reliability of machining.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the overlapping state of the sealing material in one embodiment of the present invention, Fig. 2 is a perspective view of the state of temporary holding by a holding jig, and Fig. 3 is a nine-triangular bag shape used as the holding jig. 4 is a cross-sectional view of the spring μ in a compressed and heated state; FIG. 5 is a perspective view of a temporarily held state in another embodiment of the present invention; and FIG. 6 is a partial perspective view of a heat exchange panel. , FIG. 7 is a perspective view of the heating device, FIG. 8 is a sectional view of the panel edge in a sealed state, and FIGS. 9 and 10 are perspective views showing a conventional corner joining method. 1...Heat exchange panel, 2...Sealing material, 3...Bag method 6...L-shaped jig, )-4 Agent Patent attorney Akio Miyai 1-knee' , , , : 1 tJ 1 Mikko T kuwa l I' Or A- Part 1 Figure 3 Figure 4 Figure 6-shi Patent Order No. 275316 of 1980 dated 01, No. 3, amended party 4, attorney's specification, page 2, line 20, "supply port 3" is corrected to "supply port 13."

Claims (3)

[Claims] (1) A method for joining a corner of a heat exchange panel in which thermoplastic plastic sheets are arranged on both sides, a heat medium passage is formed inside, and a thermoplastic substantially groove-shaped sealing material is fitted to the peripheral edge, the method comprising: A method for joining the corners of a heat exchange panel, characterized in that the sealing materials are overlapped on each other at the corners of the heat exchange panels and temporarily held with a pressing jig, and then the sealing materials are welded and integrated with the panels by pressing and heating. . (2) the holding jig is a triangular bag-shaped body made of a heat-resistant sheet that does not melt due to the pressing and heating;
A method for joining a corner of a heat exchange panel according to claim (1), wherein a corner of the heat exchange panel on which the sealing material is stacked is inserted through an open piece of the bag-like body to temporarily hold the sealing material. . (3) The method for joining a corner of a heat exchange panel according to claim (1), wherein the holding jig is an L-shaped jig applied to the outer surface of the corner of the heat exchange panel on which the sealing material is superimposed.