JPS59158919A - Manufacture of heating panel for floor heating apparatus - Google Patents

Abstract

PURPOSE:To prevent the positional displacement of fixed parts and the damage of connecting positions generated by the collision of an undiluted solution with the injection of the undiluted solution by installing a flow guide plate, which prescribes the direction of flow of the undiluted solution injected at high speed so that a final filling section is brought to the end surface of a shell structure, into the shell structure into which the undiluted solution is injected. CONSTITUTION:A shell structure 8 is set while a back plate 2 is directed downward and a spacer 16 is held between a top force 14 and a bottom force 15 for a press for injection, an injection nozzle 17 for a high-pressure injector is connected to a filling port 12 under the state in which the whole circumference and upper and lower surfaces are constrained, an undiluted solution of urethane foam, etc. is injected into the shell structure 8 at high speed and the inside is foamed, and an integral heat-insulating layer 3 is formed, thus completing a floor heating panel (P). Since the undiluted solution collides only with a flow guide plate 13 and does not collide with a joining position and a buried nut 6 in the shell structure 8, not only they are hardly damaged and displaced by the collision of the undiluted solution but also the direction of flow of the injected undiluted solution is prescribed by the flow guide plate 13, and gross porosities cannot be formed at the central section of the structurally unstable shell structure 8.

Description

[Detailed Description of the Invention] +The invention relates to the manufacture of a floor heating panel in which a heat insulating layer made of urethane foam or the like is injected with liquid.
It is related to Awakata and Lea.

This type of underfloor heating panel described in ``1'' has conventionally used a material such as urethane foam inside the hollow shell structure with internal heat transfer pipes. It has been manufactured by injecting and filling the night to form an integral insulation layer inside.
When the raw solution such as urethane foam hits the outer shell structure, the high-speed raw material C' collides with the inner wall facing the injection port from a direction almost perpendicular to the outer shell structure (4< There are many cases where the flow direction of the raw solution inside is random, resulting in a structurally unstable central part of the outer shell groove that is not filled, that is, the middle part of the outer shell is unfilled, resulting in defective products. The percentage was high.

The present invention can solve the above-mentioned conventional problems by specifying the filling direction of original and night filling directions, and by positioning the unfilled part of the stock solution in a place where there is no problem. The purpose is to share with the world how to manufacture and process floor heating panels.

Next, the structure of the present invention will be specifically explained based on an example shown in the drawings.

A manufacturing method as an application example of the present invention is first applied to manufacturing a floor heating panel (P) having a structure as shown in 1. First, let me explain a little about the floor heating panel (P). The floor heating panel (I'l) is a flat panel with a structure C1 heat, a tiger conduit ( 4) is buried in the heat insulating layer (3) except for the connecting end.The corner l on the surface side of the surface plate (1)
C8, the triangular connecting plate (5) can be screwed onto two floor heating panels (Pl pr - surface side force). This connection plate (5))] If you ask me, the internal P was buried in the embedded nano 1-(6)-\w!
This is done by screwing in the filler screw (7). In a floor heating panel (-P) with such a configuration, the heat medium conduit (4) is generally fixed in a meandering manner on the back side of the surface plate (1), and the treatment plate (2) is fixed on the back side of the surface plate (1) in a meandering manner. An outer shell structure (8) having a hollow flat plate structure as a whole is formed, and a stock solution such as polyurethane foam is injected at high speed into the outer shell structure (8) to foam the outer shell structure. thermal insulation, such as a stable urethane foam, enclosing the heat transfer conduit (4) within the body (8);
Kidney (3) Produced by forming the kidney i)
Ru. The application example of the present invention and the manufacturing method of 1-1 basically follow the above-mentioned steps. In other words, the side part and
Place the 7 lunges (IA) that place the back plate (2) on the back side.
On the back side of the formed surface plate (1), apply r-lumi tape (9).
Fixing means such as ・21 History is heat, soot pipe (4) 7 Seven Snakes r
] Piping shape and fixation; connection of heat medium conduit (4) 111
4. The starting point is 1 YuJ, and the outside three places are
Triangle 1 Invasion 5 to break (5). Tighten the nut (6) of the tightening screw 7)) with the shape (hexagonal, etc.) of the embedded cut C6) (
Form a matching corner PL (io) 3 (1) to fit it from the back side and temporarily fix it.

Next, the flange of 100 seedlings (IA,
) Align the ici face plate (2) with 'fR, and align the surface (
1) and back side 1 (reverse (2)) with 1i!hl fixing tape 0υ
Etc. South τE7'll: Group (j?) The relationship is maintained, and an outer shell structure (8) with 141+ heating medium conduits (4) inside the hollow flat plate (backward) is constructed. Yes, the outer shell @ J confession body
, 8) 1. Connecting plate (5) of ~Il'l11 part to 2
The corner with 1ν angle 1j is formed with a filling opening (1""),
And inside the filling knee 1<12 and the opposite corner +
If there are 4 holes, 14 people will be charged from one filling port. Heat the fugoura to the outer shell (heat, T5. fill in the electric body (8)) 1 (10
The flow field directed in the z1 angle direction of the inner shell (1: (l is the outer shell (
The inner surface of the reverse work (8) has been applied with force and diagonal tape 7a. But outside/obscene body (8)? Place a spacer <1.6) between the upper mold (14) and the lower mold α of the injection press with the back plate 1'2) facing down, and with the entire circumference and lower surface restrained. Connect the injection nozzle 0 of the high-pressure press-fitting machine to the filling port 0, and inject the undiluted solution such as urethane foam into the outer shell structure/book (8) at high speed to cause internal foaming and form an integral insulation @ 13). Thus, the floor heating panel (P) can be completed.

After the formation of the heat insulating layer (3), a fairly strong impact is applied to the part where the stock solution directly collides, but in this example, the part where the stock solution collides is the flow guide plate (1), Since these are not the joints of the outer shell structure (8) or the embedded nuts (6), they are unlikely to wave or shift due to the collision of the liquid solution, and the outer shell structure of the injection liquid liquid is The flow direction of 'C in the body (8) is determined by the flow guide plate (1).
→, and since Hara Ichiya does not go around the outside, an unfilled part, that is, a nest cannot be formed in the central part of the structurally unstable outer shell structure (8), and even if a nest is formed, This is due to the fact that the outer shell structure (8), which does not pose a problem, is exposed at a specific location Q■ near the end surface. Therefore, the proportion of defective products due to the above-mentioned causes is significantly reduced.

As is clear from the explanation given above, the method for manufacturing a floor heating panel of the present invention involves injecting a stock solution such as urethane foam to form an internal heat insulating layer. Flow of injection stock solution at high speed
Since a flow guide plate is provided to specify the direction so that the final filled part is at the end face of the outer shell structure, it prevents displacement of fixed parts and damage to connection points that occur due to collision of concentrate during injection of concentrate. In addition, it is possible to prevent the unfilled part of the 1:1 stock solution from forming in the structurally unstable central part, and the proportion of defective products is significantly lower than that of 1.2". ＜It will decrease.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a floor heating panel to which the manufacturing method of the present invention is applied, FIG. 2 is an explanatory view showing one configuration of the outer shell structure, and FIG. d at the time of injection of the stock solution: A side cross-sectional view showing the cent state to the press for use; FIG. 4 is an explanatory diagram showing the state of flow of the stock solution when the stock solution is poured. yrg, the same reference numerals in the figure indicate the same or 4th eye part. (1)・Surface plate (2)Surface plate (3)・Insulation,
Retainer (4) - Heat medium conduction - R (6) - Embedded nut (8) - Outer shell structure (12 mm) - Flow guide plate
(P), Floor heating panel representative Kuzuno 100 -

Claims (1)

[Claims] When injecting the stock solution to form the urethane foam y in the hollow flat shell structure where the heating medium conduit piping has been completed, cough metol 1 is added into the outer shell structure.
A method for producing a floor heating panel, comprising: providing a flow guide plate that defines the flow direction of the stock solution to be injected into the structure and makes the final filled portion of the stock solution an end face portion within the outer shell structure.