JPS5858238B2 - Manufacturing method of insulation panel body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a heat insulating panel body such as a shutter or a door panel in which a foamed resin is interposed and filled between a pair of metal panel plates.

Conventionally, the manufacturing method for this type of insulation panel body was
As shown in Japanese Patent Publication No. 1-36622, metal plates that have been formed with convex veins in advance and cut to a predetermined size are continuously connected with a connecting tape and conveyed, and a long piece of metal is placed facing the metal plate at a predetermined interval. metal two.

A heat insulating roof in which hoop materials are conveyed one after another, a layer of foamed resin such as hard foamed polyurethane is continuously filled and foamed between the metal plate and the metal hoop material, and then cut at a predetermined length position. A method of manufacturing the material is known.

In this manufacturing method, since the foamed resin is foamed between a pair of long metal plates, it is important to seal the ends (hereinafter referred to as widthwise ends) perpendicular to the conveyance direction.

For this reason, even if heat insulating panels such as shutters and door panels are manufactured using the conventional method described above, a side seal conveyor is provided between each end of a pair of long metal plates in the width direction. The side seal conveyor and the foamed resin come into direct contact, and then the side seal conveyor separates from the widthwise ends of the pair of long metal plates at a predetermined position, so when they separate, the end faces of the foamed resin become rough, causing problems such as shutters, When a stile is attached to be used as a door plate, etc., the inner surface of the stile and the foamed resin surface do not come into close contact with each other, resulting in a problem in that the mounting strength of the stile is weakened.

In addition, it is simply a method of arranging metal plates facing each other, and it is difficult to maintain the spacing between the metal plates when filling with foamed resin, resulting in misalignment. This took a lot of time and caused delays, leading to a decrease in efficiency.

In view of the above-mentioned circumstances, the present invention has been made to provide a method for manufacturing a heat insulating panel body that is most suitable for shutters, door panels, etc., and its first purpose is to
．． It is possible to reliably seal between both ends of the second long metal plate in the width direction, allowing for good foaming of the foamed resin, and the frame can be attached to both ends of the width direction with high strength without causing any deviation in shape. It is an object of the present invention to provide a method for manufacturing a heat insulating panel body that can be carried out sequentially and continuously.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic explanatory diagram showing an embodiment of an apparatus for implementing the manufacturing method according to the present invention, in which 1 is a first long metal plate wound into a coil shape, and 2 is a first long metal plate wound into a coil shape. wrapped second
They are long metal plates arranged vertically and facing each other at a predetermined distance L1 apart.

Reference numeral 3 denotes a conveyance device in which a pair of upper and lower endless conveyors 4 and 5 are arranged facing each other with a predetermined distance L2 (L2<Lt) apart in the vertical direction. An endless link 4c on the sprockets 4b and 5b,
5c is wound around it, and the member is rotated in the direction of arrow X to convey the member to the right in the figure.

Reference numeral 6 denotes a first belt forming machine provided between the first long metal plate 1 and the conveyor device 3a, and an endless belt 6a that rotates along the first long metal plate 1 has a plurality of protrusions. A pair of upper and lower wave forming machines 61 and 62, which are formed by fixing 6b at equal intervals, are attached to each protrusion 6b.
The first elongated metal plate 1
is formed into a waveform along the conveyance direction.

7 is a second forming machine provided between the second long metal plate 2 and the conveyor device 3a, and a plurality of roll pairs 81 to 84 are
It has a shape in which a plurality of pieces are provided between both widthwise ends of a long metal plate 2, and as shown in FIG. 4, both widthwise ends of the second long metal plate 2 are bent upward to form an upwardly bent piece. 2a, 2a are formed, and a plurality of grooves 2b are formed along the longitudinal direction.

Reference numeral 9 denotes a sealing layer forming machine installed between the second sealing machine 7 and the conveying device 3a, which applies a band-shaped sealing material 10 wound into a coil onto the second long metal plate via a roller 11. A sealing layer A is formed by continuously adhering to the inner surface 2'a of the facing bend 2a.

Note that instead of the band-shaped sealing material 10, the sealing layer A may be formed by injecting a hot metal type sealing material.

Here, a rubber elastic material such as hot melt, soft vinyl chloride, sponge, maltbrene, etc. is good as the sealing material.In particular, if a porous rubber elastic material such as sponge is used, air bubbles will flow out when the foamed resin is foamed. Foaming of foamed resin improves.

Reference numeral 12 denotes an expanding machine installed between the seal layer forming machine 9 and the conveying device 3a, and the expanding machine 12 is provided between the inner and outer surfaces 2'a of the upwardly bent piece 2a.
(Seal layer A) It has a structure in which a pair of rollers 13, 13 in contact with 2a is provided at a position shifted outward from the upwardly bent piece 2a, and the upwardly bent piece 2a is deformed to expand outward. do.

Reference numeral 14 denotes a foamed resin injection machine, which is provided opposite to the inlet 3a of the conveying device 3.

Reference numeral 15 denotes a plurality of guide and pressing rollers provided along the sides of the conveying device 3, which press the expanded upwardly bent pieces 2a toward the width direction end surfaces 1a, la of the first long metal plate 1. At the same time, it also functions as a guide for conveyance.

The first guide/pressing roller 15 located in the conveying unit 3a of the guide/pressing roller 15 has a large diameter so as to be able to strongly curve inward the upwardly bent piece 2a which has been expanded and deformed. be.

Next, the manufacturing method will be explained step by step.

■ 1st. The second long metal plates 1 and 2 are conveyed while being brought closer to each other in order. The second molding machines 6 and 7 mold each into the predetermined shape described above.

■ The first molded. The second long metal plates 1 and 2 are conveyed to the entrance 3a of the conveyance device 3 while being brought closer to each other one after another, and thereafter are regulated by a pair of upper and lower conveyors 4 and 5 for a predetermined distance L.
2 is held and continuously conveyed.

At this time, the sealing material 10 is successively applied to the upwardly bent inner surface 2a of the second long metal plate 2 by the sealing layer forming machine 9 to form the sealing layer A, and then the expanding machine 12 The upwardly bent piece 2a is expanded and deformed outward, and in that state is transported to the vicinity of the transport device 3a.

Then, in the vicinity of the transport device population 3a, the first long metal plate 1
The pair of upwardly bent pieces 2a fit between the pair of upwardly bent pieces 2a.

■ Thereafter, as shown in FIG. 8, the pair of upwardly bent pieces 2a, 2a of the second long metal plate 2
1 and its own restoring force, and press-bonds the sealing layer A to both end faces 1a, 1a in the width direction of the first elongated metal plate 1, thereby forming the first and second elongated metal plates 1, 2. The upwardly bent pieces 2a reliably seal between both ends in the width direction, and the hollow framework bodies B are sequentially and continuously formed.

(2) Foamed resin is sequentially injected into the hollow framework body B formed above using the foamed resin injection machine 14 to continuously form a framework body B', and this framework body B' is connected to the conveying device 3 and the guide/pressing roller 1.
5 and are sequentially conveyed.

(2) While being transported by the transport device 3, the framework B' is heated and the foamed resin is foamed. Second long metal plate 1, 2
Strongly connect.

(2) Later, the frame body B' is cut into a predetermined length by a traveling cutter 16 to form a heat insulating panel body.

As shown in FIGS. 9, 10, and 11, the heat insulation panel body C manufactured as described above is made of a panel plate A consisting of a first elongated metal shoulder plate 1 and a second elongated metal material 2. The foamed resin is filled between the panel opening and the panel opening, and the bent piece 2 of one panel opening is crimped to the end surface E of the other panel opening via the sealing layer A. Since the stile can be attached in close contact with the bent piece 2, the attachment strength between the stile and the panel board is increased.

The present invention is as described above. Second long metal plate 1, 2
The foamed resin can be foamed well by securely sealing between both ends in the width direction, and the frame can be strongly attached to both ends in the width direction without causing any deviation in the shape of the frame, and a heat insulating pattal body can be manufactured.

Moreover, since the first elongated metal plate 1 is fitted in a state in which the bent pieces 2a, 2a of the second elongated metal plate 2 are expanded outward, it can be fitted easily and easily.

Furthermore, since continuous metal plates are molded, sequentially sealed, and filled with foamed resin, continuous molding can be achieved with efficiency in terms of time and process.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing an apparatus for carrying out the method of the present invention, FIGS. 2 and 3 are a view of FIG. is the IV-IV line in Figure 1, V-V
7 is a perspective view of the main part of the method of the present invention, FIG. 8 is a sectional view of the hollow frame body, FIG. 9 is a front view of the manufactured insulation panel body, and FIG. The rear view and FIG. 11 are cross-sectional views. 1 is a first long metal plate, 2 is a second long metal plate, 2a is a bent piece, 2/a is an inner surface, 3 is a conveyance device, B is a hollow frame body, B
' is a framework body.

Claims (1)

[Claims] 1 The first elongated metal plate 1 is conveyed while maintaining a straight shape after a predetermined conveyance position, and has bent pieces 2a, 2a at both ends in the width direction, and seals on the inner surfaces 2'a, 2'a. The second elongated metal plate 2 provided with the layer A is conveyed with its bent pieces 2a expanded outward until it reaches the vicinity of the predetermined conveyance position, and the width of the first elongated metal plate 1 is adjusted. Both ends of the bent piece 2a
, 2a, and then deforms the bent pieces 2a, 2a inward to insert the first elongated metal plate 1 through the sealing layer A.
A hollow framework body B is continuously formed by pressure bonding to both end faces 1a, 1a in the width direction, and a foamed resin is injected into the hollow framework body B from the predetermined transport position to form a framework body B'. A method of manufacturing a heat insulating panel body, which comprises cutting the frame body B' into a predetermined length.