JP2000008509A - Manufacture of heat insulation material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain a low cost production by continuously cutting ends of a molding, then inverting the end cut pieces 90 degrees and laminating them on an upper surface of the molding as a spacer, thereby forming a spacer integrated type molding. SOLUTION: Glass short fibers are bound together with a phenol resin binder and a long material of an inorganic fiber molding 10 made of glass wool formed by being heated and pressurized is formed. Both ends of the molding 10 are cut by a rotor cutter 20, and an adhesive 31 is spayed from a binder sprayer 30 to a portion where the end cut pieces 11 are placed. The pieces 11 are laminated by an arbitral carrier on an upper surface of the molding 10 and bonded to the upper surface of the molding 10 through the adhesive 31, thereby forming a long inorganic fiber heat insulating material 1 with a spacer integrated therewith. Accordingly, it is possible to continously produce a heat insulating material with a large bindging strength in the end cut pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a heat insulating material such as an inorganic fiber heat insulating material made of glass wool or the like, or an organic heat insulating material made of a foam or the like.
In particular, a spacer is integrally formed on the molded body, and a rear ventilation layer is provided on the spacer side. For example, a heat insulating material suitable for use as a heat insulating material in a wall provided with a ventilation layer in a wall of a building. It relates to a manufacturing method.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6 of Japanese Patent Application Laid-Open No. 8-120801, a heat insulating material provided with such a spacer has a structure in which a predetermined interval is formed on the surface of high-density glass wool. Grooves were formed on the surface, and irregular waves were formed on the surface, and laminated with a flat plate-shaped normal density glass wool. Alternatively, as disclosed in FIG. 13 of the publication, a groove is formed in a foam material, this foam material is laminated with glass wool, and a ventilation layer is formed by the groove formed in the foam material.

[0003]

However, in the conventional method of manufacturing a heat insulating material, it is necessary to separately prepare a spacer member, which makes continuous manufacturing difficult, and in particular, makes it impossible to continuously manufacture long objects. Had. Therefore, an object of the present invention is to provide a method of manufacturing a heat insulating material that does not require a separate spacer member for a heat insulating material having a spacer, and that can be manufactured continuously even if it is a long object.

[0004]

In order to solve the above-mentioned problems, the method for manufacturing a heat insulating material according to the present invention continuously cuts an end portion of a formed body and cuts the cut end portion on the upper surface of the formed body. A method for manufacturing a heat insulating material, comprising laminating as a spacer to form a spacer-integrated molded body. According to a second aspect of the present invention, there is provided a method for manufacturing a heat insulating material according to the first aspect, wherein the end cut piece cut from the molded body is turned by 90 degrees to form a spacer on the upper surface of the molded body. It is characterized by being laminated as. According to a third aspect of the present invention, there is provided a method for manufacturing a heat insulating material according to the first or second aspect, wherein the cutting and laminating of the molded body are performed a plurality of times. According to a fourth aspect of the present invention, in the method of manufacturing a heat insulating material according to any one of the first to third aspects, the cut end piece is fixed to the molded body via an adhesive. It is characterized by making it. According to a fifth aspect of the present invention, in the method for manufacturing a heat insulating material according to any one of the first to fourth aspects, the formed body is an inorganic fiber formed body. According to a sixth aspect of the present invention, in the method for manufacturing a heat insulating material according to the fifth aspect, thermoplastic resin sheets are arranged on both front and back surfaces of the inorganic fiber molded body in a state where the cut end pieces are laminated. The thermoplastic resin sheet is characterized in that the peripheral edge portion is thermally fused to cover the inorganic fiber molded body.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. (Example 1) An inorganic fiber molded body 10 made of glass wool having a density of 24 kg / m ³ , a thickness of 50 mm, and a total width of 910 mm formed by binding short glass fibers having an average fiber diameter of 7 μm with a phenol resin binder and heating and pressing. Was obtained. Next, as shown in FIGS. 1 (a) and 1 (b), both ends of the inorganic fiber molded body 10 are cut by a rotor cutter 20 to a width of 100 mm, and at the same time, the cut end pieces obtained in this manner are obtained. The adhesive 31 is sprayed from the binder sprayer 30 to the place where 11 is to be placed, and then the end cut pieces 11 are laminated on the upper surface of the inorganic fiber molded body 10 by using an arbitrary conveying means (not shown). A long inorganic fiber heat insulating material 1 integrally provided with a spacer was bound to the upper surface of the inorganic fiber molded body 10 via the adhesive 31. The obtained inorganic fiber heat insulating material 1 may be used by appropriately cutting it into a desired size. According to the present embodiment, it is possible to continuously manufacture the inorganic fiber heat insulating material 1 integrally provided with the spacer by the end cut pieces 11 adjusted to an arbitrary width.

(Example 2) Using a long article of the inorganic fiber molded body 10 obtained in the same manner as in Example 1, FIG.
As shown in (a) and (b), this inorganic fiber molded body 1
0 both ends 30 mm with rotor cutter 20
An adhesive 31 is sprayed from a binder sprayer 30 onto a portion where the cut end piece 11 obtained in this way is to be placed, and then the cut end piece 11 is cut into the inorganic fiber. The upper surface of the body 10 is turned upside down by 90 degrees using an arbitrary conveying means (not shown), laminated as a spacer, and attached to the upper surface of the inorganic fiber molded body 10 via the adhesive 31, and the spacer is integrally provided. A long inorganic fiber heat insulating material 1 was obtained. The obtained inorganic fiber heat insulating material 1 is
What is necessary is just to cut | disconnect suitably to a desired size, and to use it. According to the present embodiment, it is possible to continuously manufacture the inorganic fiber heat insulating material 1 integrally provided with the spacer by the end cut pieces 11 adjusted to an arbitrary height.

(Embodiment 3) Using a long article of the inorganic fiber molded body 10 obtained in the same manner as in the first embodiment, both ends of the inorganic fiber molded body 10 were cut by a rotor cutter 20 to a width of 30 mm each. At the same time, the adhesive 31 is sprayed from the binder sprayer 30 onto the place where the cut end piece 11 thus obtained is to be placed, and then the cut end piece 11 is attached to the inorganic fiber molded body 10. The upper surface was turned upside down by 90 degrees by using an arbitrary conveying means (not shown), laminated as a spacer, and bound to the upper surface of the inorganic fiber molded body 10 via the adhesive 31. Next, as shown in FIG. 3, both ends of the inorganic fiber molded body 10 to which the two end cut pieces 11 and 11 are fixed in this manner are each 30 mm wide by the rotor cutter 20 in the same manner as described above. The adhesive 31 is cut from the binder sprayer 30 at the place where the cut end pieces 11 obtained in this way are to be placed, and then the cut end pieces 11 are cut into the inorganic fiber molded body 10. It is turned upside down by 90 degrees by using an arbitrary conveying means (not shown), laminated as a spacer, and bonded to the upper surface of the inorganic fiber molded body 10 via the adhesive 31, and cut into four end pieces. The inorganic fiber heat insulating material 1 to which the spacers composed of 11, 11, 11, 11 were fixed was obtained. The obtained inorganic fiber heat insulating material 1 may be used by appropriately cutting it into a desired size. According to the present embodiment, it is possible to continuously manufacture the inorganic fiber heat insulating material 1 integrally provided with a spacer formed by an arbitrary number of end cut pieces 11.

(Embodiment 4) As shown in FIG. 4, the inorganic fiber heat insulating material 1 obtained in the above-mentioned embodiment 3 has thermoplastic resin sheets 40, 40 on both front and back surfaces by using pressing rollers 50. The thermoplastic resin sheets 40, 40 were heat-sealed using a heat sealer 60 to cover the inorganic fiber heat insulating material 1. Such covering with the thermoplastic resin sheet 40 can be carried out either as the inorganic fiber heat insulating material 1 as it is, or after cutting it to an arbitrary size. According to the present embodiment, it is possible to manufacture the inorganic fiber heat insulating material 1 without tingling due to the inorganic fibers. Further, in the present embodiment, the formed body is a heat insulating material (glass wool) made of short glass fiber, but the formed body is not limited to this, and a heat insulating material made of organic fiber such as cellulose fiber, foamed polystyrene, Organic porous heat insulating materials such as extruded expanded polystyrene, rigid urethane foam, polyethylene foam, and urea foam can also be applied.

[0009]

As described above, according to the present invention, there is no need to separately prepare a spacer member for a heat insulating material integrally provided with a spacer for forming a back ventilation layer, and it is a long object. It is also possible to provide a method for manufacturing a heat insulating material which can be manufactured continuously at low cost. In particular, according to the method of manufacturing a heat insulating material described in claim 2, it is possible to continuously manufacture a heat insulating material integrally provided with a spacer formed by cut end pieces adjusted to an arbitrary height. According to the method for manufacturing a heat insulating material according to the third aspect, a heat insulating material integrally including a spacer formed by an arbitrary number of cut end pieces can be continuously manufactured. Further, according to the method for manufacturing a heat insulating material according to the fourth aspect, a heat insulating material having high binding strength of the end cut pieces can be continuously manufactured. According to the method for manufacturing a heat insulating material described in claim 5, the inorganic heat insulating material can be manufactured in the method for manufacturing a heat insulating material having the effects of claims 1 to 4. Further, according to the method for manufacturing a heat insulating material according to the sixth aspect, it is possible to manufacture an inorganic fiber heat insulating material having no tingling due to inorganic fibers.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram for explaining one embodiment of a method for manufacturing a heat insulating material of the present invention, where (a) is a side view thereof,
(B) is a front view thereof.

FIG. 2 is an explanatory diagram for explaining another embodiment of the method for manufacturing a heat insulating material of the present invention, wherein (a) is a side view thereof,
(B) is a front view thereof.

FIG. 3 is a front view of an explanatory diagram for explaining another embodiment of the method for manufacturing a heat insulating material of the present invention.

FIG. 4 is an explanatory diagram for explaining still another embodiment of the method for producing a heat insulating material of the present invention, wherein (a),
(B), (c) is a front view of each process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inorganic fiber heat insulating material 10 Inorganic fiber molded object 11 End cut piece (spacer) 20 Rotor cutter 30 Binder sprayer 31 Adhesive 40 Thermoplastic resin sheet 50 Holding roller 60 Heat sealing machine

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshinobu Hori, 415 Sakunodani, Yuki-shi, Ibaraki Pref. Japan Inorganic Co., Ltd. Inside Yuki Plant (72) Inventor Kenji Kawabe 415 Sakunoya, Yuki-shi, Ibaraki Pref. Inside the Yuki Plant of Shikisha Company (72) Inventor Takuya Jinnai 415 of Sakunotani, Yuki City, Ibaraki Pref. FD04

Claims (6)

[Claims] 1. A heat insulation method, wherein an end of a molded body is continuously cut, and a cut piece of the end is laminated as a spacer on an upper surface of the molded body to form a spacer-integrated molded body. The method of manufacturing the material. 2. The method for manufacturing a heat insulating material according to claim 1, wherein the cut end pieces cut from the molded body are turned over by 90 degrees and laminated as spacers on the upper surface of the molded body. 3. The method for manufacturing a heat insulating material according to claim 1, wherein the cutting and laminating of the molded body are performed a plurality of times. 4. The method for manufacturing a heat insulating material according to claim 1, wherein said cut end piece is fixed to said molded body via an adhesive. 5. The method for producing a heat insulating material according to claim 1, wherein the molded body is an inorganic fiber molded body. 6. A thermoplastic resin sheet is arranged on both front and back surfaces of the inorganic fiber molded body in a state in which the cut end pieces are laminated,
The method for manufacturing a heat insulating material according to claim 5, wherein a peripheral portion of the thermoplastic resin sheet is heat-sealed to cover the inorganic fiber molded body.