JPS5845931A - Preparation of heat insulative material - Google Patents

Abstract

PURPOSE:To prepare economically heatinsulating material excellent in heat insulation, strength, etc. in a preparing process of heat insulating material obtained by expanding and forming expandable material supplied between an upper and a lower metallic hoop material by injecting expandable material by two stages. CONSTITUTION:A lower metallic hoop material 2 guided from a reel 10 where projecting stripes 3 are formed by a projecting stripes forming machine 11 in a lengthwise direction and an upper metallic hoop material 1 guided from a reel 9 are carried respectively by conveyors 5, 4. In the middle of this carrying operation, first, the 1st expandable material 8a is injected by the 1st stage injecting device 22 of an expandable material injecting device 13 into the cavities 50 of the hoop material 2, then the 2nd expandable material 8b is injected by the 2nd stage injecting device 23 onto semi-hardened expandable material 8a and both materials 8a and 8b are hardened integrally to prepare heat insulating material.

Description

DETAILED DESCRIPTION OF THE INVENTION The present company relates to a method for manufacturing a heat insulating material, in which the lower metal hoop material is continuously rolled and the convex veins (3) are continuously formed using a convex vein forming roll al. The upper metal hoop material (1) is continuously supplied to form the convex veins (3), and the upper metal hoop material (!) and the upper metal hoop material (1) are formed. The first foamable material is injected into the concave ring on the back side of the convex veins (3) of the lower metal hoop material (2) and foamed, and the first foamable material ( 8a) is foamed to fill the dent, and the lower metal hoop material (2) and the upper metal hoop material 1 are formed.
The present invention relates to a method for producing a heat insulating material, which is characterized by injecting a second foamable material (8b) between holes 11 and 11 for foam filling.

Conventionally, when 10,000 of the upper and lower metal hoop materials that are continuously supplied are formed with convex veins and conveyed by the upper and lower conveyors while maintaining a constant nest, foaming properties are created between the upper and lower metal hoop materials. It is known to form a foam between upper and lower metal hoop materials by injecting and foaming I family. However, in this conventional example, if the distance between the upper and lower metal hoops is short, and the convex veins are large and tall, the foam material will not be completely filled in the 1 minute period with the convex veins, and the foam material will not be completely filled inside. vinegar"
However, there were some issues regarding strength, heat insulation, etc., since foaming and filling could not be done uniformly. There was a problem that only small and short convex veins could be formed, and the three-dimensional effect was poor.The e-produced l51Fi is a good invention in view of the above points, and its purpose is However,
Even if the convex veins are large and tall, the foam material can be reliably filled between the upper and lower metal plates, without degrading strength or insulation, and providing a rich three-dimensional effect. The purpose of the present invention is to provide a method for manufacturing a heat insulating material.

19141 in Figure 0, which will be explained in detail by the present invention t-Example below.
(1 is a payoff reel, and the upper and lower metal hoop materials (1) are rolled. (6) is a convex vein forming machine consisting of a large number of convex vein forming O-L. The hoop material (2) has large and tall convex veins (3) that are continuous in the longitudinal direction. (1) YR at the end is shaped like a trap.asFi upper and lower metal hoop materials 1.
1) (This is a foaming agent injection device for injecting a foaming material such as a synthetic resin foaming agent into the darkness, and the foaming agent injection device 1
lsf) Up and down conveyor (4) 181 in front! It is equipped with a tuple conveyor. Upper and lower conveyor 141 (
Of 1), 90,000 metal hoops forming convex veins (3) are used.
A support and a protrusion (7) are provided to support the l feed (-).

In the example shown in the figure, there is a supporting protrusion (
7) is shown. To form the supporting convex portion (71) on the conveyor (51, for example, do as follows.
In the figure, a belt 0-5 belt 04 is used as a conveyor (61), and a plurality of backup belts (l@) are further wound around the outer periphery of the belt 0-5 belt I, and this backup belt Il@ ).Difference 11 in the figure
is a pulley that supports each I3 pull-up belt 051t.

Here, if the backup belt O@ has a V-belt shape as shown in FIG. 6, a recess into which the first thread of the V-belt fits is provided on the outer periphery of the pulley. In addition, if the backup belt O5l has a shape like No. 7, there are four collars on the outer periphery on both sides of the pulley. Top If! The backup belt 051 of the ΩEori example is made of JMU and has a hardness of 60.
In addition, as shown in Fig. 7, a buffer-bound label with a groove S ring provided on the conveyor (5) side at right angles to the direction of rotation is used, and the flexibility of the entire belt is improved by the presence of the groove S ring. This improves the rotation speed and makes the rotation smoother.

Furthermore, in the above detailed example, it is also possible to turn the 0-5 belt (belt (2N)) around the outer periphery of the belt, and turn the belt (2N) around the outer periphery of this belt. In the example, the backup belt (1@ori0
- Although we have shown an example in which the supporting convex portion (1) is formed by passing it around the outer circumference of the label sheet 04, as shown in Fig. 8, it is possible to
A block-shaped support part (
7) may be detachably attached using bolts and nuts.

When using this method, flat belt a! This will turn υ. The blowing agent injection device/place is the first stage injection device (2
) and a second stage injection device. The second stage injection device @ is designed to inject the first foaming material (8a)e into the recesses on the back side of the convex veins (3) formed by the metal hoop material (!)K, and the first stage injection The device @ is the first injection injected into the depression on the back side of the convex vein (3) by the second stage injection device.

Does heavy material (8m) emit a certain amount? When the dent is almost filled by advancing lI, the second foaming material (8b
). Therefore, the first stage injection device 4 is disposed next to the @1 crotch injection device. FIG. 10 shows an example of a first stage injection device. In the figure, reference numeral 124 denotes a head, which is movable along the rail frame, and can be positioned above the back side of the convex vein (3) of the metal hoop material (2). It looks like this. The second stage injection device is filled with the first foam material (81
) Side injection head FC24a)t provided for injecting
It is located near the entrance of the i-side conveyor (47) or slightly in front of this entrance. This is the dent on the back side of the convex vein (3) other than the end - KII primary foam material (8
If a) is injected into the hole, there is no risk of the primary foaming material (8 turtles) flowing out to the outside of the metal hoop material (the convex veins 13 located at the side edges). If the primary foamable material (8a) is injected into the back side, the primary foamable material (8m) will flow out to the outside of the metal hoop material (2) and foam, causing an inconvenience. Primary foam material (8
When 1) is foamed, the foamable material is prevented from flowing outward to the side by the side stiffness bearing ←η and from foaming.

Of course, the side conveyor fight is the next secondary foam material (
This is to prevent foaming from flowing outward during foaming in step 8b). There are two methods for injecting the foamable material from the blowing agent injection device a field, which consists of the I11 stage injection device (2) and the first stage injection device □□□: a low pressure method and a high pressure method. In Figure 9 (1), ° indicates the low pressure method, and Figure 9 (
b) Kri high pressure method is shown. Each of the above methods is a two-liquid heating type in which liquid A and Bl are mixed and foamed. Bosip, Kan! The middle sink head, shown in the figure, @1) is the compressed air supply section, and @ is the sorbecito tank. In front of the piston boss (B4 is the spray head, 1@l is the dry air supply section, and the upper and lower koshibears (4) are inserted), the end parts rs and m machine are arranged, and the end part rs and m machine are arranged. The KIIi Basid saw is located at the front of the aircraft. In the figure, cnfi first by 5-1- is a reversing device;
The decoy is the second piler.

However, the upper and lower metal hoop materials 111 +! 11, the end of the upper metal hoop material + 11 is formed with the upper end forming machine O-bu, sent to the upper and lower conveyor 141jil side, and the lower metal hoop material 1211 is formed with the convex vein forming machine αυ. Form it and send it to the upper and lower conveyors +41+61@. In front of the upper and lower conveyors (4) and (5), the first foam material is injected into the recesses on the back side of the convex veins (3) of the lower metal hoop material (2) by the first stage injection device 1 (5). (8m) T-inject, and in a state where the first foamable material (8a) foams and swells to a certain extent (preferably to the extent that it almost fills the dent), the second crotch injection device is applied. A secondary foaming material (8b) is injected, and this is used to form the upper and lower Koshibear (4) (l
Metal hoop material on top and bottom of it ill [! 1% of the upper and lower metal hoop materials + (fills between 21 and 21), and the primary foaming material and the secondary foaming material foam together and become integrated. Next, the upper and lower metal plates (1 m) (2a) were cut to a certain length using a band saw, and the foam (8 m) was placed in the dark as shown in Figure 11.
) is filled to continuously produce nine insulation materials.

The insulation material formed as above has a convex vein (3) at one end.
The back side is filled with foam (8) to form a male part, and the back side of the convex vein (3) at the other end is not filled with foam (81) and becomes a female part. This insulation material is used as roofing material and wall material, but when connecting, there is a
421 and is connected. In the figure (41#i Powerkin. By the way, as shown in Figure 12, the longitudinal end & SK
By extending the end of the metal plate (2 m) formed in the convex vein 1B11, the extended portion (lc) of the rib can be overlapped with the end of the adjacent heat insulating material. t4I is a sealing material that is interposed when overlapping. To form the extended portion (lc), during manufacturing, release paper is attached at regular intervals to the lower metal hoop (lc), foamed material is injected and foamed, and a band saw is used to cut the material to a certain length. (In this case, it is best to cut at the outer edge ss of the release paper.)
Then, the upper metal plate (1 m) and the foam product are cut using a notch cutter at the inner edge of the release paper.
e Yes, from this point on, when you peel off the release paper, the extension part (
'l c , ) will be formed.

In the present invention, as described above, the lower metal hoop material is continuously supplied, the convex veins are continuously formed in the convex vein forming O-ru, and the upper metal hoop material is continuously supplied. The lower metal hoop material with the convex veins formed thereon and the upper metal hoop material are conveyed vertically facing each other, and the i
Then, the first foaming material is injected and foamed, and with the first foaming material foaming and filling the dent, a second foaming material is poured between the lower metal hoop material and the upper metal hoop material. Since the foam material is injected and foamed, the distance between the upper and lower metal hoops is short, and even if the object is tall and has large convex veins, it will not be possible to fill the area with the convex veins. First, the upper and lower metal hoops.
It is a material that can be uniformly filled with foam material without deteriorating its strength or insulation properties.As a result, large and tall convex veins can be formed, giving it a rich three-dimensional effect, and is especially used as roofing material. In this case, the presence of convex veins gives it a folded roof-like appearance. In addition, since the primary foamable material is foamed and then the secondary foamable material is foamed, the 1g primary foamable material and the secondary foamable material are firmly integrated. In particular, if the second foamable material is injected and foamed before the first foamable material has completely foamed, both materials will be completely integrated during foaming.

[Brief explanation of the drawing]

Fig. 1 is a top view of the device used in the present invention, Fig. 2 is a side view of the same as above, Fig. 3 is an enlarged side view of the upper and lower conveyor parts, and Fig. 4 is a diagram showing the process of injecting and foaming the primary foamable material. Figure 5 is an enlarged cross-sectional view of the part where the second foamable material is injected and foamed, and Figure 6 is an enlarged cross-sectional view of the supporting convex portion of the same as above.
FIG. 7 is an enlarged perspective view of another example of the same embroidery, FIG. 8 is an enlarged perspective view of another example of embroidery, and FIGS. 9(a) and 9(b) are 10(a) and 10(b) are top and front views of the same first stage injection device, and FIG. 11(1) ( b) is a cross-sectional view of a heat insulating material manufactured according to the present invention and a connection state! lt- is a cross-sectional view, and FIG. 12 is a perspective view of an example in which the wooden case is used as a roofing material and has an extension part.
Fig. 13 is a sectional view immediately after cutting with a notch cutter to form the extension portion of the same as above, and Fig. 14 (ml (b)
l ri gPIs diagram Foamable material, (8b) is secondary foamable material, - is a recess. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] 11) The lower metal hoop material is continuously supplied to continuously form convex veins in a convex vein forming O-ru, and the upper metal hoop material is continuously supplied to form the convex veins. The gold hoop material and the upper metal hoop material are transported vertically facing each other, and the primary foamable material is injected into the recesses on the back side of the convex veins of the lower metal hoop material and foamed. C2t where the foamable material foams and digs the depression, and then fills the lower metal hoop material with foam by injecting the secondary foaming material between the upper metal hoop materials.
41 Method for manufacturing insulation material containing mold;