JP2908700B2 - Manufacturing method of insulated duct - Google Patents
Manufacturing method of insulated ductInfo
- Publication number
- JP2908700B2 JP2908700B2 JP6092710A JP9271094A JP2908700B2 JP 2908700 B2 JP2908700 B2 JP 2908700B2 JP 6092710 A JP6092710 A JP 6092710A JP 9271094 A JP9271094 A JP 9271094A JP 2908700 B2 JP2908700 B2 JP 2908700B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- axis
- cylindrical body
- shaped
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Duct Arrangements (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は空調用配管等の保温ある
いは配管自体として用いる円筒状の断熱ダクトの製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a cylindrical heat-insulating duct used as a heat-retaining pipe for air conditioning or the like or as a pipe itself.
【０００２】[0002]
【従来の技術】連続して効率良く断熱ダクトを製造する
装置として本出願人は特開昭５９−８７１３０号公報及
び特開昭６１−２０２８２８号公報に開示されるものを
提案している。2. Description of the Related Art The present applicant has proposed an apparatus for continuously and efficiently producing an insulating duct as disclosed in JP-A-59-87130 and JP-A-61-202828.
【０００３】この装置は図３に示すように、送りベルト
１００によって、帯状シート１０１をマンドレルと呼ば
れる芯金１０２の軸に対して斜めに供給することで芯金
１０２の軸回りに帯状シート１０１をスパイラル状に巻
回した滑り管１０３を形成し、次いで、熱硬化性樹脂を
含浸した帯状グラスウールマット１０４を回転する前記
滑り管１０３の軸に対して斜めに供給してスパイラル状
に巻回した筒体１０５を形成し、この筒体１０５を加熱
硬化せしめた後、帯状表皮材（図示せず）をスパイラル
状に巻き付けることで断熱ダクトを製造するようにして
いる。In this apparatus, as shown in FIG. 3, a belt-shaped sheet 101 is supplied obliquely to an axis of a cored bar 102 called a mandrel by a feed belt 100, so that the banded sheet 101 is rotated around the axis of the cored bar 102. A spirally wound tube formed by forming a spirally wound slide tube 103, and then feeding a belt-shaped glass wool mat 104 impregnated with a thermosetting resin obliquely to the axis of the slide tube 103 which rotates. After the body 105 is formed, the tubular body 105 is cured by heating, and a belt-shaped skin material (not shown) is spirally wound to manufacture a heat-insulating duct.
【０００４】[0004]
【発明が解決しようとする課題】ところで、この断熱ダ
クトは製品とするときには筒体１０５内から滑り管１０
３を引き抜くことから、図４に示すように断熱ダクトを
構成する筒体１０５の内周面に毛羽立ったグラスウール
マット１０４の繊維１０６が露出してしまう。したがっ
て、このグラスウールマット１０４を用いた断熱ダクト
を室内との間で空気を循環させるための空調用配管とし
て用いたときには、この空調用配管は吸音性に優れてい
るという利点を有するものの上記構成に起因して送風時
空気抵抗が大きく繊維１０６が脱落し易いという課題を
合せ持つものとなってしまう。However, when this heat-insulating duct is manufactured as a product, the sliding tube 10 is inserted from inside the cylindrical body 105.
3, the fibers 106 of the fluffy glass wool mat 104 are exposed on the inner peripheral surface of the cylindrical body 105 constituting the heat insulating duct, as shown in FIG. Therefore, when the heat-insulating duct using the glass wool mat 104 is used as an air-conditioning pipe for circulating air between the room and the room, the air-conditioning pipe has an advantage of being excellent in sound absorbing properties, but has the above-described structure. For this reason, there is a problem that the air resistance at the time of air blowing is large and the fibers 106 easily fall off.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
本発明に係る断熱ダクトの製造方法は、帯状グラスウー
ルマットを回転する滑り管の軸に対して斜めに供給して
スパイラル状に巻回された筒体を形成する際、帯状グラ
スウールマットを滑り管に巻回する前に、滑り管の表面
にガラス繊維不織布等の内面材を巻回するようにした。According to the present invention, there is provided a method for manufacturing a heat-insulating duct in which a strip-shaped glass wool mat is supplied obliquely to an axis of a rotating sliding tube and wound in a spiral shape. When forming the cylindrical body, before winding the band-shaped glass wool mat around the slide tube, an inner surface material such as a glass fiber nonwoven fabric was wound around the surface of the slide tube.
【０００６】[0006]
【作用】本発明によれば上記のようにしたことにより、
製品とするため熱硬化させた筒体（断熱ダクト）から滑
り管を引き抜いたとき、筒体の内周面にはグラスウール
マットより平滑性の高いガラス繊維不織布の表面が露出
する。According to the present invention, as described above,
When the sliding tube is pulled out from the thermosetting cylinder (insulated duct) to produce a product, the surface of the glass fiber nonwoven fabric having higher smoothness than the glass wool mat is exposed on the inner peripheral surface of the cylinder.
【０００７】[0007]
【実施例】以下に本発明の実施例を添付図面に基づいて
説明する。ここで、図１は１本の帯状表皮材をグラスウ
ールマット製の表面に巻回して断熱ダクトを製造する装
置の全体図、図２は断熱ダクトの縦断面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is an overall view of an apparatus for manufacturing a heat insulating duct by winding one band-shaped skin material on a surface made of glass wool mat, and FIG. 2 is a longitudinal sectional view of the heat insulating duct.
【０００８】断熱ダクトの製造装置は上流側（図１の左
側）の端部に配置した支持部１にマンドレルと呼ばれる
芯金２の基端部を固定している。この芯金２は先端部を
自由端とし、内部を中空とし、基端部から４０〜６０％
の領域を無孔域とし、残りの領域に細孔（図示せず）を
形成し、芯金２内に供給した加熱空気（２００〜３００
℃）を当該細孔から噴出するようにしている。In the apparatus for manufacturing a heat insulating duct, a base end of a cored bar 2 called a mandrel is fixed to a support 1 disposed at an end on the upstream side (left side in FIG. 1). The core metal 2 has a free end at the distal end, a hollow inside, and 40 to 60% from the base end.
Is a non-porous area, pores (not shown) are formed in the remaining area, and heated air (200 to 300
C.) from the pores.
【０００９】芯金２の基端部から若干上流側に寄った位
置において、帯状シート３を芯金２の軸に対して斜めに
供給している。帯状シート３はボール紙やクラフト紙か
らなるとともに、本実施例においては、帯状シート３を
芯金２の表面に直接巻き付けられる第１の帯状シート３
ａと、この第１の帯状シート３ａの供給方向と交差する
ように異なる方向から供給され、この第１の帯状シート
３ａの外側面に巻き付けられる第２の帯状シート３ｂと
から構成している。そして、芯金２の表面に接する第１
の帯状シート３ａの内側面には離型剤を塗布し、第１の
帯状シート３ａの外周面に重ねられる第２の帯状シート
３ｂの内周面には酢酸ビニル系の接着剤を塗布してい
る。At a position slightly upstream from the base end of the metal core 2, the belt-shaped sheet 3 is supplied obliquely to the axis of the metal core 2. The band-shaped sheet 3 is made of cardboard or kraft paper, and in the present embodiment, the first band-shaped sheet 3 on which the band-shaped sheet 3 is directly wound around the surface of the cored bar 2.
a and a second belt-like sheet 3b that is supplied from a different direction so as to intersect with the supply direction of the first belt-like sheet 3a and is wound around the outer surface of the first belt-like sheet 3a. Then, the first contacting the surface of the cored bar 2
A release agent is applied to the inner surface of the first belt-shaped sheet 3a, and a vinyl acetate-based adhesive is applied to the inner peripheral surface of the second belt-shaped sheet 3b to be superimposed on the outer peripheral surface of the first belt-shaped sheet 3a. I have.
【００１０】前記帯状シート３の供給部の下流側には移
送機構４を配置している。この移送機構４は一対のプー
リ５ａ，５ｂ間に張設した平ベルトから構成する送りベ
ルト６を芯金２（帯状シート３）の外周に斜めにたすき
掛けし、駆動側のプーリ５ａまたは５ｂを正転または逆
転させて送りベルト６を上下方向へ走行させることで、
芯金２の表面に帯状シート３をスパイラル状に巻き付け
て滑り管７を形成し、かつ形成された滑り管７を回転さ
せながら芯金２の軸に沿って先端方向（図１の右方向）
へ摺動させる。A transfer mechanism 4 is disposed downstream of the supply section of the belt-shaped sheet 3. The transfer mechanism 4 obliquely crosses a feed belt 6 composed of a flat belt stretched between a pair of pulleys 5a and 5b around the outer periphery of the cored bar 2 (band-shaped sheet 3), and pulls the drive-side pulley 5a or 5b. By running the feed belt 6 in the vertical direction by rotating forward or reverse,
A belt-like sheet 3 is spirally wound around the surface of the cored bar 2 to form a sliding tube 7, and the tip of the sliding tube 7 is rotated along the axis of the cored bar 2 (rightward in FIG. 1).
To slide.
【００１１】ここで、帯状シート３を構成する第１の帯
状シート３ａの内周面には離型剤が塗布されているた
め、滑り管７は芯金２に沿って移動し易く、また第２の
帯状シート３ｂの内周面には接着剤が塗布されているの
で、滑り管７が途中でバラバラになることがない。Here, since the release agent is applied to the inner peripheral surface of the first belt-like sheet 3a constituting the belt-like sheet 3, the slide tube 7 easily moves along the cored bar 2, and Since the adhesive is applied to the inner peripheral surface of the second belt-shaped sheet 3b, the sliding tube 7 does not fall apart in the middle.
【００１２】次に、帯状グラスウールマット８を供給し
て筒体９を形成するが、本発明においては帯状グラスウ
ールマット８の供給と並行して送りベルト６と帯状グラ
スウールマット８の間に１０〜１００ｇ／ｍ2（主に４
０〜５０ｇ／ｍ2）の帯状ガラス繊維不織布１０を連続
的に送り込みこれを滑り管７にスパイラル状に巻き付け
る筒体９の内面処理を行なう。ここで、上記帯状ガラス
繊維不織布１０は平滑な表面を有する（すなわち、空気
抵抗が小さい）多孔材料であり、グラスウールマットに
比し繊維の絡みが強い（すなわち、繊維が脱落し難い）
という性質を有する。Next, the belt-shaped glass wool mat 8 is supplied to form the cylindrical body 9. In the present invention, 10-100 g is provided between the feed belt 6 and the belt-shaped glass wool mat 8 in parallel with the supply of the belt-shaped glass wool mat 8. / M2 (mainly 4
(0 to 50 g / m <2>) of the glass fiber nonwoven fabric 10 is continuously fed, and the inner surface of the cylindrical body 9 wound spirally around the slide tube 7 is processed. Here, the band-shaped glass fiber nonwoven fabric 10 is a porous material having a smooth surface (that is, low air resistance), and has a stronger fiber entanglement than glass wool mats (that is, fibers are less likely to fall off).
It has the property of
【００１３】前記帯状グラスウールマット８は熱硬化性
樹脂を含浸しており、加熱された押えローラ等を介して
回転する滑り管７の軸に対して斜めに供給され、この回
転する滑り管７によって帯状ガラス繊維不織布１０と同
様に滑り管７にスパイラル状に巻き付けられて筒体９を
構成する。The strip-shaped glass wool mat 8 is impregnated with a thermosetting resin, and is supplied obliquely to the axis of the rotating slide tube 7 via a heated pressing roller or the like. The cylindrical body 9 is formed by being spirally wound around the slide tube 7 similarly to the belt-shaped glass fiber nonwoven fabric 10.
【００１４】この際、外周面に接着剤を塗布した帯状ガ
ラス繊維不織布１０は回転する滑り管７に供給されてい
るため、帯状ガラス繊維不織布１０に帯状グラスウール
マット８を巻付けたとき、帯状グラスウールマット８の
内周面には帯状ガラス繊維不織布１０が重なることにな
る。At this time, since the glass fiber nonwoven fabric 10 having an adhesive applied to the outer peripheral surface is supplied to the rotating sliding tube 7, when the glass fiber wool mat 8 is wound around the glass fiber nonwoven fabric 10, The belt-shaped glass fiber nonwoven fabric 10 overlaps the inner peripheral surface of the mat 8.
【００１５】帯状グラスウールマット８の下流側には加
熱炉１１を配置している。この加熱炉１１内には前記筒
体９が貫通し、また前記芯金２の先端部は加熱炉１１内
まで挿入する。そして、この加熱炉１１内で筒体９中の
熱硬化樹脂及び前記帯状ガラス繊維不織布１０に塗布し
た接着剤を硬化させ、筒体７の形状を維持させる。A heating furnace 11 is disposed downstream of the glass wool mat 8. The cylindrical body 9 penetrates into the heating furnace 11, and the tip of the cored bar 2 is inserted into the heating furnace 11. Then, the thermosetting resin in the cylindrical body 9 and the adhesive applied to the band-shaped glass fiber nonwoven fabric 10 are cured in the heating furnace 11 to maintain the shape of the cylindrical body 7.
【００１６】加熱炉１１の出口近傍には温度調整装置１
２が配置され、この温度調整装置１２を通過する筒体９
の表面に空気を吹き付けて温度を低下させ、表皮材内側
面に塗布した接着材が機能するようにしている。温度調
整装置１２の下流側には帯状表皮材１３の供給装置１４
を備えている。この供給装置１４は帯状表皮材１３の内
側面に接着剤を塗布しながら前記筒体９に対して斜めに
供給して筒体９の表面にスパイラル状に巻き付けて断熱
ダクトを構成する。A temperature control device 1 is provided near the outlet of the heating furnace 11.
2, and a cylindrical body 9 passing through the temperature control device 12.
Air is blown on the surface of the skin to lower the temperature so that the adhesive applied to the inner surface of the skin material functions. On the downstream side of the temperature control device 12, a supply device 14 for the belt-shaped skin material 13 is provided.
It has. The supply device 14 applies the adhesive to the inner surface of the belt-shaped skin material 13 and supplies the material obliquely to the cylindrical body 9 and spirally winds the surface of the cylindrical body 9 to form a heat insulating duct.
【００１７】さらに、帯状表皮材１３の供給装置１４の
下流側には切断装置１５を配置し、この断熱ダクトを所
定寸法に切断し、滑り管７を一端から引き抜くことで内
側から帯状ガラス繊維不織布１０、帯状グラスウールマ
ット９および帯状表皮材１３をこの順に層状に重ねた断
面を有する断熱ダクトが出来上がる。なお、本発明にお
いては空調用配管等に使用するという用途から不燃材料
であるガラス繊維不織布を内面材として用いたが、他の
用途に使用されるときには化繊の不織布や織布、紙、フ
ィルム類や金網、金属箔を使用してもよい。Further, a cutting device 15 is arranged on the downstream side of the supply device 14 for the band-shaped skin material 13, cuts the heat-insulating duct to a predetermined size, and pulls out the slide tube 7 from one end to thereby form the band-shaped glass fiber nonwoven fabric from the inside. 10, a heat insulating duct having a cross section in which the belt-like glass wool mat 9 and the belt-like skin material 13 are layered in this order is completed. In the present invention, glass fiber non-woven fabric, which is a non-combustible material, is used as the inner surface material for use in air conditioning piping and the like, but when used for other purposes, synthetic fiber non-woven fabric, woven fabric, paper, film, etc. Or wire mesh or metal foil may be used.
【００１８】[0018]
【発明の効果】以上の説明から明らかなように本発明に
よれば、熱硬化させた断熱ダクト（筒体）から滑り管を
引き抜いたとき、筒体の内周面にはガラス繊維不織布の
表面が露出するため、断熱ダクトは吸音性に優れるとと
もに、空気抵抗が小さくなって送風効率が向上し、グラ
スウール繊維が脱落し難くなって空気を清浄に保ち易く
なるという空調用配管として優れた性能を発揮するもの
となる。As is apparent from the above description, according to the present invention, when the slide tube is pulled out from the heat-cured heat-insulating duct (tubular body), the inner peripheral surface of the cylindrical body has the surface of the glass fiber nonwoven fabric. In addition, the heat insulation duct has excellent sound absorption properties, reduces air resistance and improves ventilation efficiency, makes it difficult for glass wool fibers to fall off, and makes it easier to keep air clean. Will demonstrate.
【００１９】また、ガラス繊維不織布を内面材として使
用した場合には色調も調整でき材料の色調に合せて選択
できるため、意匠的にも優れた断熱ダクトを得ることが
できる。さらに、ガラス繊維不織布とグラスールとを並
行して滑り管に巻き付けていくため、一工程でグラスー
ルを用いた断熱ダクトの成形と内面処理を行うことがで
きるという利点も有する。When the glass fiber non-woven fabric is used as the inner surface material, the color tone can be adjusted and selected according to the color tone of the material, so that a heat insulating duct excellent in design can be obtained. Furthermore, since the glass fiber nonwoven fabric and glassol are wound around the slide tube in parallel, there is an advantage that the heat insulating duct can be formed and the inner surface treatment using glassul can be performed in one step.
【図１】１本の帯状表皮材をグラスウールマット製の表
面に巻回して断熱ダクトを製造する装置の全体図FIG. 1 is an overall view of an apparatus for manufacturing a heat insulating duct by winding a belt-shaped skin material around a surface made of glass wool mat.
【図２】断熱ダクトの縦断面図FIG. 2 is a longitudinal sectional view of the heat insulating duct.
【図３】帯状グラスウールマットを滑り管に巻回してい
る状態を示す図FIG. 3 is a view showing a state in which a belt-shaped glass wool mat is wound around a slide tube.
【図４】断熱ダクトの帯状グラスウールマット部分の縦
断面図FIG. 4 is a longitudinal sectional view of a strip-shaped glass wool mat portion of an insulating duct.
１…支持部、２…芯金、３…帯状シート、４…移送機
構、５ａ，５ｂ…プーリ、６…送りベルト、７…滑り
管、８…帯状グラスウールマット、９…筒体、１０…帯
状内面材、１１…加熱炉、１２…温度調整装置、１３…
帯状表皮材、１４…供給装置、１５…切断装置。DESCRIPTION OF SYMBOLS 1 ... Support part, 2 ... Core metal, 3 ... Strip-shaped sheet, 4 ... Transfer mechanism, 5a, 5b ... Pulley, 6 ... Sending belt, 7 ... Sliding tube, 8 ... Strip-shaped glass wool mat, 9 ... Cylinder, 10 ... Strip-shaped Inner surface material, 11: heating furnace, 12: temperature controller, 13 ...
Band-shaped skin material, 14 ... supply device, 15 ... cutting device.
Claims (1)
軸に対して斜めに供給することでマンドレルの軸回りに
スパイラル状に巻回された滑り管７を形成し、次いで、
この回転する滑り管７の軸に対して外周面に接着剤を塗
布した帯状内面材１０を供給して滑り管７の軸回りにス
パイラル状に巻回し、更に帯状内面材１０を巻回した滑
り管７の軸に対して熱硬化性樹脂を含浸した帯状グラス
ウールマット８を斜めに供給してスパイラル状に巻回さ
れた筒体９を成形し、この後、この筒体９を加熱して熱
硬化性樹脂を硬化せしめ、次いで、帯状表皮材１３を前
記筒体９の軸に対して斜めに供給して筒体表面にスパイ
ラル状に巻き付け、さらに所定寸法に切断するようにし
た断熱ダクトの製造方法。1. A belt-like sheet 3a, 3b is supplied obliquely to the axis of the mandrel 2 to form a sliding tube 7 wound spirally around the axis of the mandrel.
An adhesive is applied to the outer peripheral surface with respect to the axis of the rotating slide tube 7.
A strip-shaped glass wool mat in which the cloth-like inner surface material 10 is supplied, spirally wound around the axis of the slide tube 7 , and further impregnated with a thermosetting resin with respect to the axis of the slide tube 7 around which the belt-like inner surface material 10 is wound. 8 is supplied obliquely molding a cylindrical body 9 which is wound spirally, and thereafter allowed to cure the thermosetting resin by heating the cylindrical body 9, then the cylindrical body band-shaped skin material 13 A method for manufacturing a heat-insulating duct, wherein the heat-supply duct is supplied obliquely to the axis of No. 9 and spirally wound around the surface of the cylindrical body, and further cut into predetermined dimensions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6092710A JP2908700B2 (en) | 1994-04-28 | 1994-04-28 | Manufacturing method of insulated duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6092710A JP2908700B2 (en) | 1994-04-28 | 1994-04-28 | Manufacturing method of insulated duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07293985A JPH07293985A (en) | 1995-11-10 |
| JP2908700B2 true JP2908700B2 (en) | 1999-06-21 |
Family
ID=14062031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6092710A Expired - Lifetime JP2908700B2 (en) | 1994-04-28 | 1994-04-28 | Manufacturing method of insulated duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2908700B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1054578Y (en) * | 2003-02-04 | 2003-12-01 | Saint Gobain Cristaleria S A | MINERAL WOOL PANEL PROVIDED WITH COATING VELO BY BOTH FACES. |
| DE102013019682A1 (en) * | 2013-11-22 | 2015-05-28 | Saint-Gobain Isover G+H Ag | Insulating element for heat and / or sound insulation of pipes, especially chimney pipes |
-
1994
- 1994-04-28 JP JP6092710A patent/JP2908700B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07293985A (en) | 1995-11-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990323 |