JP3224592B2 - Manufacturing method, manufacturing apparatus and cylindrical heat insulating material for cylindrical heat insulating material - Google Patents
Manufacturing method, manufacturing apparatus and cylindrical heat insulating material for cylindrical heat insulating materialInfo
- Publication number
- JP3224592B2 JP3224592B2 JP12600992A JP12600992A JP3224592B2 JP 3224592 B2 JP3224592 B2 JP 3224592B2 JP 12600992 A JP12600992 A JP 12600992A JP 12600992 A JP12600992 A JP 12600992A JP 3224592 B2 JP3224592 B2 JP 3224592B2
- Authority
- JP
- Japan
- Prior art keywords
- tubular
- heat insulating
- insulating material
- foam
- grooved
- 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 - Fee Related
Links
Landscapes
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、クーラー等に用いられ
る銅管等の管状体を保温する筒状断熱材の製造方法、製
造装置及び筒状断熱材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a tubular heat insulating material for keeping a tubular body such as a copper tube used for a cooler or the like warm.
【0002】[0002]
【従来の技術】クーラー等に用いられる銅管等の管状体
を保温する筒状断熱材として、図8に示すように、内層
を筒状発泡体1とし、その外周にシート状発泡体2を被
覆した筒状断熱材40等が用いられている。この筒状断
熱材40は、図7に示すように、回転可能な繰出架台4
にセットした筒状発泡体1を引取機5で引出し、被覆成
形型6を通過させ、ヒータ7で加熱したシート状発泡体
2をその外周に巻付け、シート状発泡体2の側縁部13
同士を熱融着させて被覆筒状発泡体3を形成し、次いで
引取機5の二本の溝付ベルト8,9により、その形状を
保持しながら引取り、必要に応じてペア加工装置19に
より複数本の側壁同士を熱融着させてペア加工した後、
巻取機10で巻取る等の方法で製造されていた。2. Description of the Related Art As a tubular heat insulating material for keeping a tubular body such as a copper tube used for a cooler or the like warm, as shown in FIG. The coated tubular heat insulating material 40 and the like are used. As shown in FIG. 7, the cylindrical heat insulating material 40 is
Is pulled out by a take-off machine 5, passed through a coating mold 6, and wound around a sheet-like foam 2 heated by a heater 7, so that a side edge 13 of the sheet-like foam 2
The coated tubular foams 3 are formed by heat fusion with each other, and then are taken up by the two grooved belts 8 and 9 of the take-up machine 5 while maintaining the shape thereof. After the multiple side walls are heat-sealed and pair-processed,
It was manufactured by a method such as winding with a winder 10.
【0003】[0003]
【0004】しかしながら、引取機5の二本の溝付ベル
ト8,9の溝形状が、図11に示すように、断面半円形
で、r=R(但しr=溝付ベルト溝の半径、R=筒状断
熱材の半径)とされていたため、引取時に筒状断熱材4
0の製品外径以上に被覆筒状発泡体3を圧着して引取る
ことができないという欠点があった。このため、図8に
示すように、シート状発泡体2の側縁部13同士を充分
圧着して融着させることができず、場合により、図12
に示すように、シート状発泡体2の融着不充分な側縁部
13が引離されて筒状断熱材40にシール割れ14が発
生することがあった。 However, the groove shape of two grooved belts 8, 9 of the pull winding machine 5, as shown in FIG. 11, in a semicircular cross section, r = R (where r = radius of the grooved belt groove, R = radius of the cylindrical heat insulating material).
There was a drawback that the coated tubular foam 3 could not be pressed and taken over the product outer diameter of 0 or more. For this reason, as shown in FIG. 8, the side edges 13 of the sheet-like foam 2 cannot be sufficiently pressed and fused to each other.
As shown in (1), the side edge portion 13 of the sheet-like foam 2 that was not sufficiently fused was separated, and a seal crack 14 was sometimes generated in the tubular heat insulating material 40.
【0005】[0005]
【0006】本発明の第1及び第2の発明は、筒状断熱
材の外層を構成する被覆シートの側縁部の融着を充分に
行うことができ、筒状断熱材のシール割れを防止するこ
とができる筒状断熱材の製造方法及び製造装置を提供す
ることを目的とする。 According to the first and second aspects of the present invention, the side edges of the covering sheet constituting the outer layer of the cylindrical heat insulating material can be sufficiently fused, and the seal crack of the cylindrical heat insulating material is prevented. It is an object of the present invention to provide a method and an apparatus for manufacturing a tubular heat insulating material that can be manufactured.
【0007】また本発明の第3の発明は、クーラー等に
用いられる銅管等の管状体の保温に好適な筒状断熱材を
提供することを目的とする。A third object of the present invention is to provide a tubular heat insulating material suitable for keeping a tubular body such as a copper tube used for a cooler or the like warm.
【0008】[0008]
【0009】本発明の第1の発明の筒状断熱材の製造方
法は、筒状発泡体を被覆成形型に移送し、この被覆成形
型において、筒状発泡体の外周に被覆シートを被覆した
後、被覆筒状発泡体を二本の溝付ベルトに挟んで引取る
筒状断熱材の製造方法において、被覆シートの側縁部を
一方の溝付ベルトの中央に位置させるように、溝付ベル
トの中央部間の間隔を筒状断熱材の直径以下にして被覆
筒状発泡体を引取ることを特徴とするものである。In the method for producing a tubular heat insulating material according to the first aspect of the present invention, a tubular foam is transferred to a coating mold, and the outer periphery of the tubular foam is coated with a coating sheet in the coating mold. Thereafter, in a method of manufacturing a tubular heat insulating material in which the coated tubular foam is sandwiched between two grooved belts and pulled, the grooved sheet is positioned so that the side edge of the coated sheet is positioned at the center of one of the grooved belts. The method is characterized in that the interval between the central portions of the belt is set to be equal to or less than the diameter of the tubular heat insulating material, and the coated tubular foam is taken off.
【0010】[0010]
【0011】[0011]
【0012】本発明の第2の発明の筒状断熱材の製造装
置は、筒状発泡体の繰出部と、被覆用シートの繰出部
と、被覆成形型と、二本の溝付ベルトからなる引取機と
を備えた筒状断熱材の製造装置において、二本の溝付ベ
ルトの溝部が、半径r>Rの半円形状断面とされ、か
つ、引取時の二本の溝付ベルトの中央部間の間隔がH<
2Rとなされていることを特徴とするものである。 但し r=溝部の半径 R=筒状断熱材の半径 H=引取時の二本の溝付ベルトの中央部間の間隔[0012] A second aspect of the present invention, an apparatus for manufacturing a tubular heat insulating material, comprises a feeding section of a tubular foam, a feeding section of a covering sheet, a coating mold, and two grooved belts. In the manufacturing apparatus for a tubular heat insulating material provided with a take-up machine, the groove portions of the two grooved belts have a semicircular cross section with a radius r> R, and the center of the two grooved belts at the time of take-up. H <
2R. Where r = radius of the groove R = radius of the cylindrical heat insulator H = interval between the central parts of the two grooved belts at take-off
【0013】本発明の第3の発明の筒状断熱材は、請求
項1記載の筒状断熱材の製造方法によって製せられてい
ることを特徴とするものである。[0013] tubular insulation third aspect of the present invention is characterized in that it is Seise by the method of claim 1 Symbol placement of tubular insulation.
【0014】筒状発泡体としては、例えば筒状無架橋ポ
リエチレン発泡体を、被覆シートとしては、架橋ポリエ
チレン発泡体シートを好適に用いることができる。As the tubular foam, for example, a tubular non-crosslinked polyethylene foam can be suitably used, and as the covering sheet, a crosslinked polyethylene foam sheet can be suitably used.
【0015】[0015]
【0016】第1の発明では、被覆シートの側縁部を一
方の溝付ベルトの中央に位置させるように、溝付ベルト
の中央部間の間隔を筒状断熱材の直径以下にして被覆筒
状発泡体を引取ることにより、被覆シートの側縁部が強
く圧着されて引取られる。これにより被覆シートの側縁
部同士が緊密に接着され、シール割れが発生しない。In the first invention, the distance between the center portions of the grooved belts is set to be equal to or less than the diameter of the cylindrical heat insulating material so that the side edge of the cover sheet is positioned at the center of one of the grooved belts. By taking off the foam, the side edges of the covering sheet are strongly pressed and taken off. As a result, the side edges of the covering sheet are tightly adhered to each other, and no seal crack occurs.
【0017】[0017]
【0018】[0018]
【0019】第2の発明では、引取機の二本の溝付ベル
トの溝部が、半径r>Rの半円形状断面とされているこ
とにより、引取られる被覆筒状発泡体と溝付ベルトの溝
部との間隔が溝付ベルトの溝部の中央部で最も狭くな
り、かつ、引取時の二本の溝付ベルトの中央部間の間隔
がH<2Rとなされていることにより、被覆筒状発泡体
を筒状断熱材の外径以上に、かつ、被覆筒状発泡体の中
央部を特に強く圧着して引取ることができる。In the second invention, since the groove portions of the two grooved belts of the take-up machine have a semicircular cross-section with a radius r> R, the coated tubular foam to be taken-off and the grooved belt are formed. Since the distance from the groove is the narrowest at the center of the groove of the grooved belt and the distance between the centers of the two grooved belts at the time of take-off is H <2R, the covering tubular foam is formed. The body can be pulled out more than the outer diameter of the tubular heat insulating material, and the central portion of the coated tubular foam is pressed particularly strongly.
【0020】[0020]
【実施例】以下本発明をその実施例を示す図面に基づい
て説明する。図1〜図5は本発明の筒状断熱材の製造方
法及び製造装置の一例を示す図面である。図1は本発明
の筒状断熱材の製造方法及び製造装置の一例の正面図で
ある。4は筒状発泡体1がセットされる繰出架台、17
は被覆シートのシート状発泡体2がセットされる繰出架
台であり、それぞれ筒状発泡体1の繰出部15、シート
状発泡体2の繰出部18を構成している。6は筒状発泡
体1の外周に、上記繰出部18から繰出され、ヒータ7
により加熱されたシート状発泡体2を被覆する被覆成形
型である。16は上記筒状発泡体1の繰出部15と被覆
成形型6との間に設けられ、被覆成形型6に移送される
筒状発泡体1にたるみ状態27を形成する筒状発泡体1
の移送部である。34は上溝付ベルト32と下溝付ベル
ト33とからなる引取機であり、10は被覆筒状発泡体
3を巻取る巻取機である。19は二系列で製造された被
覆筒状発泡体3を二つ一組にするペア加工装置である。
ペア加工装置19はペア加工しない場合は省略しても差
し支えない。41は筒状発泡体1のガイドであり、42
は被覆筒状発泡体3の上部の押え装置である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing the embodiments. 1 to 5 are views showing an example of a method and an apparatus for manufacturing a tubular heat insulating material of the present invention. FIG. 1 is a front view of an example of a method and an apparatus for manufacturing a tubular heat insulating material of the present invention. Reference numeral 4 denotes an extension frame on which the tubular foam 1 is set;
Is a feeding frame on which the sheet-like foam 2 of the covering sheet is set, and constitutes a feeding portion 15 of the tubular foam 1 and a feeding portion 18 of the sheet-like foam 2, respectively. 6 is fed out from the feed-out portion 18 on the outer periphery of the tubular foam 1 and has a heater 7.
This is a coating mold for coating the sheet-like foam 2 heated by the method. Reference numeral 16 denotes a cylindrical foam 1 provided between the feeding portion 15 of the cylindrical foam 1 and the coating mold 6 and forming a slack state 27 in the cylindrical foam 1 transferred to the coating mold 6.
The transfer unit. Reference numeral 34 denotes a take-up machine including an upper grooved belt 32 and a lower grooved belt 33, and reference numeral 10 denotes a take-up machine that winds the coated tubular foam 3. Reference numeral 19 denotes a pair processing apparatus for forming two sets of the coated tubular foams 3 manufactured in two series.
The pair processing device 19 may be omitted when not performing pair processing. 41 is a guide for the tubular foam 1;
Is a holding device for the upper part of the coated tubular foam 3.
【0021】図2は筒状発泡体の移送部の正面図であ
り、図3は移送部の要部斜視図である。20は一対のロ
ール21,22を駆動するモータであり、センサ23の
出力信号によりその回転速度が制御されている。25は
支柱26に取付けられた架台であり、架台25に接触レ
バー28とセンサ23が取付けられている。センサ23
は架台25の他任意の位置に取付けられてもよい。接触
レバー28はコ字状に構成された棒状体であり、筒状発
泡体1の上部に接触し筒状発泡体1の上下動に対応して
揺動することができるように架台25に揺動可能に取付
けられ、センサ23は筒状発泡体1の上下動の上限を検
知するように取付けられている。FIG. 2 is a front view of a transfer section of the tubular foam, and FIG. 3 is a perspective view of a main part of the transfer section. Reference numeral 20 denotes a motor for driving the pair of rolls 21 and 22, the rotation speed of which is controlled by an output signal of the sensor 23. Reference numeral 25 denotes a gantry attached to a support 26, and a contact lever 28 and a sensor 23 are attached to the gantry 25. Sensor 23
May be attached to any position other than the gantry 25. The contact lever 28 is a rod-shaped body formed in a U-shape, and swings on the gantry 25 so as to contact the upper part of the tubular foam 1 and swing in accordance with the vertical movement of the tubular foam 1. The sensor 23 is movably mounted, and is mounted so as to detect the upper limit of the vertical movement of the tubular foam 1.
【0022】接触レバー28とセンサ23とで筒状発泡
体1のたるみ状態を検知する検知手段を構成し、この検
知手段と制御手段24とモータ20と一対のロール2
1,22とで筒状発泡体1の移送部16を構成してい
る。The contact lever 28 and the sensor 23 constitute a detecting means for detecting the slack state of the tubular foam 1, and the detecting means, the control means 24, the motor 20, the pair of rolls 2
The transfer section 16 of the tubular foam 1 is constituted by 1 and 22.
【0023】筒状発泡体1の下限用検知センサを設けて
もよいが、上限を検知するセンサ23のみでも筒状発泡
体1のたるみ状態27を制御するのに実用上差し支えな
い。29はハンドル31により上下動可能なロール21
の軸受であり、30はモータ20で駆動されるロール2
2の軸受である。Although a sensor for detecting the lower limit of the tubular foam 1 may be provided, the sensor 23 for detecting the upper limit alone may be practically used to control the slack state 27 of the tubular foam 1. 29 is a roll 21 that can be moved up and down by a handle 31
30 is a roller 2 driven by the motor 20
No. 2 bearing.
【0024】次に上記筒状断熱材の製造装置による筒状
断熱材の製造方法を記す。繰出架台4にセットした筒状
発泡体1を、移送部16により被覆成形型6と移送部1
6との間にたるみ状態27を形成するようにして被覆成
形型6に移送する。移送部16と被覆成形型6との間に
過度の引張力が働いた場合には、筒状発泡体1が上方に
移動し、筒状発泡体1に接触している接触レバー28が
センサ23に接触し、このセンサ23の検知出力信号に
よりモータ20がロール22の回転速度を早くするよう
に制御される。これにより筒状発泡体1の移送速度が早
くなり、被覆成形型6と移送部16との間に所要のたる
み状態27が形成され、筒状発泡体1に作用する過度の
引張力が解消されるとともに引張力の変動が解消され、
被覆成形型6に移送される筒状発泡体1の外径変動がな
くなり、筒状発泡体1の外径が縮小しない。Next, a method for manufacturing a tubular heat insulating material by the above-described apparatus for manufacturing a tubular heat insulating material will be described. The tubular foam 1 set on the feeding frame 4 is transferred by the transfer unit 16 to the coating mold 6 and the transfer unit 1.
6 and transferred to the coating mold 6 so as to form a slack state 27. When an excessive tensile force acts between the transfer unit 16 and the coating mold 6, the tubular foam 1 moves upward, and the contact lever 28 that is in contact with the tubular foam 1 detects the sensor 23. And the motor 20 is controlled by the detection output signal of the sensor 23 to increase the rotation speed of the roll 22. As a result, the transfer speed of the tubular foam 1 is increased, a required slack state 27 is formed between the coating mold 6 and the transfer section 16, and the excessive tensile force acting on the tubular foam 1 is eliminated. And fluctuations in tensile force are eliminated,
The outer diameter of the tubular foam 1 transferred to the coating mold 6 does not fluctuate, and the outer diameter of the tubular foam 1 does not decrease.
【0025】次いで被覆成形型6により、繰出架台17
から繰出し、ヒータ7で加熱したシート状発泡体2を、
その側縁部13が被覆成形型6の上方中央部(又は下方
中央部)にくるようにして、筒状発泡体1の外周に被覆
して被覆筒状発泡体3とし、上溝付ベルト32と下溝付
ベルト33とからなる引取機34で引取り、ペア加工装
置19によりもう一つの系列で製造した被覆筒状発泡体
と眼鏡状に一組の筒状断熱材にペア加工し、巻取機10
に巻取る。ペア加工しない場合は引取機34で引取った
後そのまま巻取機10に巻取る。Next, the feeding platform 17 is moved by the coating mold 6.
From the sheet-like foam 2 heated by the heater 7
The outer peripheral portion of the tubular foam 1 is covered with the outer peripheral portion of the tubular foam 1 so that the side edge portion 13 is located at the upper central portion (or lower central portion) of the covering mold 6 to form the coated tubular foam 3. It is taken up by a take-up machine 34 composed of a lower grooved belt 33, and is pair-processed into a pair of coated tubular foams manufactured in another series and a pair of eyeglass-like tubular heat insulating materials by a pair processing device 19, and is wound up. 10
To take up. When the pair processing is not performed, the sheet is taken up by the take-up machine 34 and then wound up on the take-up machine 10 as it is.
【0026】図4〜図5は本発明の筒状断熱材の製造方
法及び製造装置に用いることができる引取機の上、下溝
付ベルトの一例を示す図面である。図4は上、下溝付ベ
ルトの一例の断面図であり、図5は被覆筒状発泡体の引
取時の状態を示す断面図である。36,37はそれぞれ
上、下溝付ベルト32,33の溝部であり、本例では製
造される筒状発泡体1の外周にシート状発泡体2を被覆
した筒状断熱材40の半径Rが12mmまでのものであ
るので、溝部32,33の半径rはr>Rになるうに1
2.5mmとされている。被覆筒状発泡体3は、上、下
溝付ベルト32,33の中央部38,39の間隔Hを、
引取時に筒状断熱材40の外径24mm以下例えば23
mmとして引取機34で引取られる。このとき溝部3
2,33の半径rがr>Rであるので、溝部32,33
が被覆筒状発泡体3を圧着するとき、先ず中央部38,
39が接触し、他の部所は接触しない状態となり、圧着
が進むにつれて他の部所が順に接触していく。このため
被覆筒状発泡体3を筒状断熱材40の外径以上に圧着す
ることができるとともに被覆筒状発泡体3の中央部を強
く圧着することができる。これにより上方中央部(又は
下方中央部)に位置している被覆筒状発泡体3の外層を
構成しているシート状発泡体2の側縁部13を強く圧着
することができる。これによりシート状発泡体2の側縁
部13同士が緊密に接着され、筒状断熱材40のシール
割れ不良が解消される。FIGS. 4 and 5 show an example of a belt with upper and lower grooves, which can be used in the method and apparatus for manufacturing a tubular heat insulating material of the present invention. FIG. 4 is a cross-sectional view of an example of an upper and lower grooved belt, and FIG. 5 is a cross-sectional view showing a state when the coated tubular foam is taken off. Reference numerals 36 and 37 denote grooves of the upper and lower grooved belts 32 and 33, respectively. In this example, the radius R of the cylindrical heat insulating material 40 in which the sheet foam 2 is coated on the outer periphery of the manufactured cylindrical foam 1 is 12 mm. Therefore, the radius r of the grooves 32 and 33 is 1 so that r> R.
It is 2.5 mm. The coated tubular foam 3 is provided with a space H between the central portions 38, 39 of the upper and lower grooved belts 32, 33,
At the time of taking off, the outer diameter of the cylindrical heat insulating material 40 is 24 mm or less.
mm. At this time, the groove 3
Since the radius r of r> 2,33 is r> R, the grooves 32,33
When press-fitting the coated tubular foam 3, first, the central portion 38,
39 comes into contact, and the other parts do not come into contact with each other, and the other parts come into contact sequentially as the crimping proceeds. Therefore, the coated tubular foam 3 can be pressed against the outer diameter of the tubular heat insulating material 40 or more, and the central portion of the covered tubular foam 3 can be strongly pressed. Thereby, the side edge portion 13 of the sheet-like foam 2 constituting the outer layer of the coated tubular foam 3 located at the upper central portion (or the lower central portion) can be strongly pressed. As a result, the side edges 13 of the sheet-like foam 2 are tightly adhered to each other, and the seal cracking failure of the tubular heat insulating material 40 is eliminated.
【0027】図6は本発明の筒状断熱材の製造方法又は
製造装置で製せられた筒状断熱材の一例の断面図であ
る。筒状断熱材40は、内層の無架橋ポリエチレン高発
泡体からなる筒状発泡体1と、外層の架橋ポリエチレン
高発泡体からなるシート状発泡体2とからなり、シート
状発泡体2の側縁部13が緊密に接着されている。本例
ではペア加工装置は使用していない。FIG. 6 is a cross-sectional view of an example of a tubular heat insulating material produced by the method or apparatus for producing a tubular heat insulating material of the present invention. The tubular heat insulating material 40 is composed of a tubular foam 1 made of a non-crosslinked polyethylene high foam of an inner layer, and a sheet foam 2 made of a crosslinked polyethylene high foam of an outer layer. The part 13 is tightly adhered. In this example, no pair processing device is used.
【0028】[0028]
【0029】第1の発明によれが、被覆シートの側縁部
を一方の溝付ベルトの中央に位置させるように、溝付ベ
ルトの中央部間の間隔を筒状断熱材の直径以下にして被
覆筒状発泡体を引取ることにより、被覆シートの側縁部
を強く圧着して引取ることができるので、被覆シートの
側縁部同士を緊密に接着させることができ、筒状断熱材
のシール割れ不良を防止することができる。According to the first invention, the interval between the center portions of the grooved belts is set to be equal to or less than the diameter of the cylindrical heat insulating material so that the side edge of the covering sheet is positioned at the center of one of the grooved belts. By pulling the coated tubular foam, the side edges of the coated sheet can be strongly pressed and pulled, so that the side edges of the coated sheet can be tightly adhered to each other. Seal cracking failure can be prevented.
【0030】[0030]
【0031】[0031]
【0032】第2の発明によれば、引取機の二本の溝付
ベルトの溝部が、半径r>Rの半円形状断面とされてい
ることにより、引取られる被覆筒状発泡体と溝付ベルト
の溝部との間隔が溝付ベルトの溝部の中央部で最も狭く
なり、かつ、引取時の二本の溝付ベルトの中央部間の間
隔がH<2Rとなされているので、被覆筒状発泡体を筒
状断熱材の外径以上に、かつ、被覆筒状発泡体の中央部
を特に強く圧着して引取ることができる。According to the second invention, the grooves of two grooved belts take-off machines, by being a semicircular cross section of radius r> R, coated tubular foam the grooved take-off is Since the distance between the belt and the groove is the narrowest at the center of the groove of the grooved belt, and the distance between the centers of the two grooved belts at the time of take-off is H <2R, the covering cylindrical shape is obtained. The foam can be taken out by pressing the foam more than the outer diameter of the tubular heat insulating material and the central portion of the coated tubular foam particularly strongly.
【0033】第3の発明の筒状断熱材は、内層の筒状発
泡体と被覆された被覆シートとが、内面接着不良又は/
及びシール割れ不良がなく、クーラー等に用いられる銅
管等の管状体の保温に好適なものである。In the cylindrical heat insulating material according to the third aspect of the present invention, the inner layer tubular foam and the coated cover sheet may have poor inner surface adhesion and / or
Also, it has no seal cracking failure and is suitable for keeping a tubular body such as a copper tube used for a cooler or the like warm.
【図1】本発明の筒状断熱材の製造方法及び製造装置の
一例の正面図である。FIG. 1 is a front view of an example of a method and an apparatus for manufacturing a tubular heat insulating material of the present invention.
【図2】筒状発泡体の移送部の正面図である。FIG. 2 is a front view of a transfer section of the tubular foam.
【図3】移送部の要部斜視図である。FIG. 3 is a perspective view of a main part of a transfer unit.
【図4】本発明の筒状断熱材の製造方法及び製造装置に
用いることができる二本の溝付ベルトの一例の断面図で
ある。FIG. 4 is a cross-sectional view of an example of two grooved belts that can be used in the method and the apparatus for manufacturing a tubular heat insulating material of the present invention.
【図5】被覆筒状発泡体の引取時の状態を示す断面図で
ある。FIG. 5 is a cross-sectional view showing a state when the coated tubular foam is taken off.
【図6】筒状断熱材の断面図である。FIG. 6 is a sectional view of a tubular heat insulating material.
【図7】従来の筒状断熱材の製造装置の正面図である。FIG. 7 is a front view of a conventional apparatus for manufacturing a tubular heat insulating material.
【図8】従来の筒状断熱材の断面図である。FIG. 8 is a sectional view of a conventional tubular heat insulating material.
【図9】筒状発泡体の外径の縮小状態を示す斜視図であ
る。FIG. 9 is a perspective view showing a state in which the outer diameter of the tubular foam is reduced.
【図10】被覆筒状発泡体の内面接着不良状態を示す斜
視図である。FIG. 10 is a perspective view showing a state of poor inner surface adhesion of the coated tubular foam.
【図11】被覆筒状発泡体の引取時の状態を示す断面図
である。FIG. 11 is a cross-sectional view showing a state when the coated tubular foam is taken off.
【図12】筒状断熱材のシール割れ状態を示す斜視図で
ある。FIG. 12 is a perspective view showing a state where a seal breakage of the tubular heat insulating material occurs.
1 筒状発泡体 2 シート状発泡体 3 被覆筒状発泡体 4,17 繰出架台 5,34 引取機 6 被覆成形型 7 ヒータ 8,9 溝付ベルト 10 巻取機 11 外径縮小部 12 空洞部 13 側縁部 14 シール割れ 15,18 繰出部 16 移送部 19 ペア加工装置 20 モータ 21,22 ロール 23 センサ 25 架台 26 支柱 27 たるみ状態 28 接触レバー 32 上溝付ベルト 33 下溝付ベルト 36,37 溝部 38,39 中央部 40 筒状断熱材 DESCRIPTION OF SYMBOLS 1 Cylindrical foam 2 Sheet-like foam 3 Coated cylindrical foam 4,17 Feeding stand 5,34 Take-off machine 6 Coating mold 7 Heater 8,9 Grooved belt 10 Winding machine 11 Outside diameter reduction part 12 Cavity DESCRIPTION OF SYMBOLS 13 Side edge part 14 Seal break 15, 18 Feeding part 16 Transfer part 19 Pair processing apparatus 20 Motor 21, 22 Roll 23 Sensor 25 Mount 26 Support | pillar 27 Slack state 28 Contact lever 32 Upper groove belt 33 Lower groove belt 36, 37 Groove part 38 , 39 Central part 40 Cylindrical insulation
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B29C 63/00 - 63/48 B32B 1/00 - 35/00 F16L 59/147 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29C 63/00-63/48 B32B 1/00-35/00 F16L 59/147
Claims (3)
被覆成形型において、筒状発泡体の外周に被覆シートを
被覆した後、被覆筒状発泡体を二本の溝付ベルトに挟ん
で引取る筒状断熱材の製造方法において、被覆シートの
側縁部を一方の溝付ベルトの中央に位置させるように、
溝付ベルトの中央部間の間隔を筒状断熱材の直径以下に
して被覆筒状発泡体を引取ることを特徴とする筒状断熱
材の製造方法。1. A tubular foam is transferred to a coating mold, and in this coating mold, an outer periphery of the tubular foam is coated with a covering sheet, and then the coated tubular foam is formed into two grooved belts. In the method for manufacturing a tubular heat insulating material that is sandwiched and pulled, so that the side edge of the covering sheet is positioned at the center of one grooved belt,
A method for producing a tubular heat insulating material, wherein the interval between the central portions of the grooved belt is set to be equal to or less than the diameter of the cylindrical heat insulating material, and the coated tubular foam is taken off.
繰出部と、被覆成形型と、二本の溝付ベルトからなる引
取機とを備えた筒状断熱材の製造装置において、二本の
溝付ベルトの溝部が、半径r>Rの半円形状断面とさ
れ、かつ、引取時の二本の溝付ベルトの中央部間の間隔
がH<2Rとなされていることを特徴とする筒状断熱材
の製造装置。 但し r=溝部の半径 R=筒状断熱材の半径 H=引取時の二本の溝付ベルトの中央部間の間隔2. A manufacturing apparatus for a tubular heat insulating material, comprising: a delivery section of a tubular foam, a delivery section of a covering sheet, a coating mold, and a take-off machine including two grooved belts. The groove portions of the two grooved belts have a semicircular cross section with a radius r> R, and the interval between the central portions of the two grooved belts at the time of take-off is H <2R. Manufacturing apparatus for cylindrical heat insulating material. Where r = radius of the groove R = radius of the cylindrical heat insulator H = interval between the central parts of the two grooved belts at take-off
よって製せられていることを特徴とする筒状断熱材。3. A tubular heat insulating material, characterized in that it is Seise by the method of claim 1 Symbol placement of tubular insulation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12600992A JP3224592B2 (en) | 1992-05-19 | 1992-05-19 | Manufacturing method, manufacturing apparatus and cylindrical heat insulating material for cylindrical heat insulating material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12600992A JP3224592B2 (en) | 1992-05-19 | 1992-05-19 | Manufacturing method, manufacturing apparatus and cylindrical heat insulating material for cylindrical heat insulating material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05318590A JPH05318590A (en) | 1993-12-03 |
JP3224592B2 true JP3224592B2 (en) | 2001-10-29 |
Family
ID=14924474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12600992A Expired - Fee Related JP3224592B2 (en) | 1992-05-19 | 1992-05-19 | Manufacturing method, manufacturing apparatus and cylindrical heat insulating material for cylindrical heat insulating material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3224592B2 (en) |
-
1992
- 1992-05-19 JP JP12600992A patent/JP3224592B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH05318590A (en) | 1993-12-03 |
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