JPH04200920A - Device for manufacturing metallic tube for composite tube - Google Patents
Device for manufacturing metallic tube for composite tubeInfo
- Publication number
- JPH04200920A JPH04200920A JP2338382A JP33838290A JPH04200920A JP H04200920 A JPH04200920 A JP H04200920A JP 2338382 A JP2338382 A JP 2338382A JP 33838290 A JP33838290 A JP 33838290A JP H04200920 A JPH04200920 A JP H04200920A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- circumferential surface
- metal
- aluminum
- sheet
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 42
- 229920003002 synthetic resin Polymers 0.000 claims description 12
- 239000000057 synthetic resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 abstract description 25
- 239000011347 resin Substances 0.000 abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 description 63
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 62
- 238000005096 rolling process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
- B23K20/103—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding using a roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
- B23K20/2336—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer both layers being aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/16—Composite materials, e.g. fibre reinforced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/36—Bending and joining, e.g. for making hollow articles
- B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
- B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
- B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えば、アルミニウム管のように比較的薄肉
の金属管内周面、または内周面と外周面の両方に合成樹
脂層を被覆した複合管の製造に際して、該金属管を製造
するための装置に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to, for example, a relatively thin metal pipe such as an aluminum pipe, in which the inner circumferential surface or both the inner circumferential surface and the outer circumferential surface are coated with a synthetic resin layer. The present invention relates to an apparatus for manufacturing a metal tube when manufacturing a composite tube.
（従来の技術）
アルミニウム管の内周面、または内周面と外周面の両方
に合成樹脂を被覆した複合管は、通常、帯状のアルミニ
ウム製シートを、その各側縁部同士が重なりあうように
断面真円状の円管に形成し、その重ね合わされた各側縁
部同士を超音波溶接してアルミニウム管を連続的に製造
した後に、該アルミニウム管の内周面または内周面と外
周面の両方に合成樹脂層を被覆することにより製造され
る。(Prior art) Composite pipes in which the inner circumferential surface of an aluminum tube or both the inner circumferential surface and the outer circumferential surface are coated with synthetic resin are usually made by forming a strip-shaped aluminum sheet so that its side edges overlap each other. After forming an aluminum tube into a circular tube with a perfect circular cross section and ultrasonically welding the overlapping side edges to each other to continuously manufacture an aluminum tube, the inner circumferential surface of the aluminum tube or the inner circumferential surface and outer circumference Manufactured by coating both sides with a synthetic resin layer.
このような複合管の製造に際して、アルミニウムシート
は、通常、第３図に示すライナー式の円管成形機により
、円管状に成形される。該ライナ−式円管成形機は、内
部を溶融樹脂が通流する樹脂通流管７１と、内周面が該
樹脂通流管７１に適当な間隔をあけて外嵌された外型７
２とを有する。外型７２の内周面には、樹脂通流管７１
の外周面とは所定の環状の間隙をあけた状態で該樹脂通
流管７１に外嵌される円筒状のライナー７３が設けられ
ている。When manufacturing such a composite pipe, an aluminum sheet is usually formed into a circular tube shape using a liner type circular tube forming machine shown in FIG. The liner-type circular tube forming machine has a resin flow pipe 71 through which molten resin flows, and an outer mold 7 whose inner peripheral surface is fitted onto the resin flow pipe 71 with an appropriate interval.
2. A resin flow pipe 71 is provided on the inner peripheral surface of the outer mold 72.
A cylindrical liner 73 is provided which is fitted onto the resin flow pipe 71 with a predetermined annular gap between it and the outer peripheral surface of the resin flow pipe 71 .
そして、樹脂通流管７１とライナー７３との間に形成さ
れた環状の間隙内に、予め断面Ｕ字状に湾曲された状態
のアルミニウムシート７４が通過される。Then, the aluminum sheet 74, which has been curved in advance to have a U-shaped cross section, is passed through the annular gap formed between the resin flow pipe 71 and the liner 73.
そして、その間隙を通過する際に、該アルミニウムシー
ト７４はライナー７３に摺接して、その各側縁部同士が
重ね合わされた状態の円管状に成形されにされる。円管
状に成形されたアルミニウムシート７４の外周側の側縁
部には、超音波溶接機のホーン７５が転接し、各側縁部
同士が超音波溶接されてアルミニウム管とされる。When passing through the gap, the aluminum sheet 74 comes into sliding contact with the liner 73 and is formed into a circular tube shape with its side edges overlapping each other. A horn 75 of an ultrasonic welding machine is brought into contact with the outer peripheral side edge of the aluminum sheet 74 formed into a circular tube shape, and the side edges are ultrasonically welded to form an aluminum tube.
樹脂通流管７１は、円管状に成形される直前のアルミニ
ウムシート７４の各側縁部間から外型７２内に挿入され
、その先端部がアルミニウムシート７４の各側縁部が溶
接されたアルミニウム管内に達している。そして、該樹
脂通流管７エの先端部から溶融樹脂がアルミニウム管の
内周面に押し出される。The resin flow pipe 71 is inserted into the outer mold 72 from between the side edges of the aluminum sheet 74 just before being formed into a circular tube shape, and its tip is made of aluminum to which the side edges of the aluminum sheet 74 are welded. It has reached the inside of the pipe. Then, the molten resin is pushed out from the tip of the resin flow pipe 7e onto the inner circumferential surface of the aluminum pipe.
このような円管成形機に使用されるライナー７３の材質
としては、フッ素樹脂、芳香族ポリエステル樹脂等の耐
熱性、耐摩耗性、更にはアルミニウムシート等の金属シ
ートとの摺動性に優れた合成樹脂が用いられる。The material of the liner 73 used in such a circular tube forming machine is a fluororesin, an aromatic polyester resin, etc., which has heat resistance, abrasion resistance, and has excellent sliding properties with metal sheets such as aluminum sheets. Synthetic resin is used.
（発明が解決しようとする課題）
このようなライナー式の円管成形機では、合成樹脂製の
ライナー７３が使用されているので、製造されるアルミ
ニウム管の外周面が損傷するおそれはない。しかしなが
ら、合成樹脂製のライナー７３は、アルミニウムシート
７４との摺接によりきわめて容易に摩耗する。そのため
、ライナー７３は、アルミニウムシート７３が摺接して
いる間に順次摩耗し、連続的に成形されるアルミニウム
管の外径が順次大きくなるおそれがある。(Problems to be Solved by the Invention) In such a liner-type circular tube forming machine, the liner 73 made of synthetic resin is used, so there is no risk of damage to the outer circumferential surface of the manufactured aluminum tube. However, the liner 73 made of synthetic resin is extremely easily worn out due to sliding contact with the aluminum sheet 74. Therefore, the liner 73 may gradually wear out while the aluminum sheet 73 is in sliding contact with the liner, and the outer diameter of the continuously formed aluminum tube may gradually increase.
また、製造されるアルミニウム管は、アルミニウムシー
トの各側縁部同士が重ね合わされて溶接されているため
に、その溶接部が若干盛り上がつた状態になっている。Further, in the manufactured aluminum tube, the side edges of the aluminum sheets are overlapped and welded, so that the welded portion is slightly raised.
また、アルミニウムシートを円管状に成形する際に、外
周面に凹凸が生じるおそれもある。Furthermore, when forming an aluminum sheet into a circular tube shape, there is a possibility that unevenness may occur on the outer peripheral surface.
本発明は上記従来の問題を解決するものであり、その目
的は、製造される金属管が所定の外径で安定的に製造さ
れる複合管用金属管の製造装置を提供することにある。The present invention solves the above-mentioned conventional problems, and an object thereof is to provide an apparatus for manufacturing a metal tube for a composite tube, in which the metal tube to be manufactured has a predetermined outer diameter in a stable manner.
（課題を解決するための手段）
本発明の複合管用金属管の製造装置は、金属管の少なく
とも内周面に合成樹脂層が被覆された複合管を製造する
際に、内周面が合成樹脂層にて被覆されるように、帯状
の金属シートの各側縁部を重ねて円管状に成形し、その
各側縁部同士を溶接して金属管を製造する複合管用金属
管の製造装置であって、
内部に円筒状の空間が形成されており、その空間に帯状
の金属シートを通過させる際に内周面に該金属シートを
摺接させて、該金属シートの各側縁部同士を重ね合せた
円管状に成形する外型と、該外型により重ね合わされた
金属シートの各側縁部同士を溶接する溶接機と、
該溶接機の金属シート搬送方向下流側に配設されており
、製造すべき金属管の外径にほぼ等しい外径の環状の空
間が形成されるように、軸方向に沿って円弧状に窪んだ
湾曲面をそれぞれ有した複数の鼓型ローラを有する整形
機と、を具備してなり、これにより上記目的が達成され
る。(Means for Solving the Problems) The apparatus for manufacturing a metal tube for a composite pipe of the present invention is capable of manufacturing a composite tube in which at least the inner peripheral surface of the metal tube is coated with a synthetic resin layer. A manufacturing device for metal tubes for composite pipes, which manufactures a metal tube by overlapping each side edge of a band-shaped metal sheet and forming it into a circular tube shape, and then welding the side edges to each other so that the metal tube is coated with a layer. A cylindrical space is formed inside, and when a band-shaped metal sheet is passed through the space, the metal sheet is brought into sliding contact with the inner peripheral surface, and each side edge of the metal sheet is brought into contact with each other. A welding machine that welds each side edge of the overlapped metal sheets using the outer mold, and a welding machine that is disposed on the downstream side of the welding machine in the metal sheet conveying direction. , a shaping machine having a plurality of drum-shaped rollers each having a curved surface concave in an arc shape along the axial direction so as to form an annular space with an outer diameter approximately equal to the outer diameter of the metal tube to be manufactured. The above object is thereby achieved.
（作用）
本発明の複合管用金属管の製造装置は、外型の内周面に
金属シートが摺接することにより、該金属シートが円管
状に成形され、側縁部同士が溶接機により溶接された後
に、整形機における各鼓型ローうにより形成される空間
内を通過される。各鼓型ローラは、円管状に成形された
金属管の外径が、製造すべき金属管の外径よりも大きい
場合には、搬送される金属管が各鼓型ローラの外周面に
て縮径されて、所定の外径にされる。(Function) In the apparatus for manufacturing a metal tube for a composite pipe of the present invention, the metal sheet is formed into a circular tube shape by slidingly contacting the inner peripheral surface of the outer mold, and the side edges are welded together by a welding machine. After that, it is passed through the space formed by each drum-shaped row in the shaping machine. If the outer diameter of the metal tube formed into a cylindrical shape is larger than the outer diameter of the metal tube to be manufactured, the metal tube to be conveyed will be compressed on the outer peripheral surface of each drum-shaped roller. The outer diameter is adjusted to a predetermined outer diameter.
（実施例） 以下に本発明を実施例について説明する。(Example) The present invention will be described below with reference to Examples.
本発明の複合管用金属管の製造装置は、例えば、６一
アルミニウム管の内周面、または内周面と外周面の両面
に合成樹脂層を被覆した複合管を製造するに際して、゛
アルミニウム管を製造するために使用される。The apparatus for manufacturing a metal tube for a composite pipe of the present invention can be used, for example, when manufacturing a composite tube in which the inner circumferential surface of a 6-aluminum tube or both the inner circumferential surface and the outer circumferential surface are coated with a synthetic resin layer. used for manufacturing.
第２図に示すように、該金属管製造装置５０は、アンコ
イラ２０から引き出された帯状のアルミニウムシート１
０をアルミニウム管に製造する。アンコイラ２０から引
き出されたアルミニウムシー）１０は、支持ローラ３１
および３２により水平状に支持される。As shown in FIG.
0 into aluminum tubes. The aluminum sheet (10) pulled out from the uncoiler 20 is attached to the support roller 31.
and 32 in a horizontal manner.
下流側の支持ローラ３２から繰り出されたアルミニウム
シート１０は、該支持ローラ３２から離れるにつれて、
順次、断面Ｕ字状から円形状へと変形され、内型４０の
配設位置へと搬送される。As the aluminum sheet 10 fed out from the support roller 32 on the downstream side moves away from the support roller 32,
The cross section is sequentially transformed from a U-shaped shape to a circular shape, and then transported to a position where the inner mold 40 is provided.
内型４０は、断面Ｕ字状に変形されたアルミニウムシー
ト１０の各側縁部の間に下端部が位置する支持部４１と
、該支持部４１の下端部からアルミニウムシート１０の
搬送方向下流側へ延出する円筒状の樹脂通流管４２とを
有する。該樹脂通流管４２の内部にはコア（図示せず）
が同心状に挿通しており、両者の間隙を溶融樹脂が通流
する。The inner mold 40 includes a support part 41 whose lower end is located between the side edges of the aluminum sheet 10 deformed into a U-shaped cross section, and a support part 41 located downstream from the lower end of the support part 41 in the conveying direction of the aluminum sheet 10. It has a cylindrical resin flow pipe 42 extending to. A core (not shown) is provided inside the resin flow pipe 42.
are inserted concentrically, and molten resin flows through the gap between the two.
該内型４０の樹脂通流部４２における中程に、外型５１
が配設されている。該外型５１は、内部に円筒状の空間
が形成されており、その空間内に円筒状のライナー（図
示せず）が嵌合されている。そして、ライナーにより形
成される空間内にアルミニウムシート１０が挿通される
。該アルミニウムシート１０は、ライナーの円筒状の空
間が通過する際に、該ライナーの内周面に摺接すること
により、アルミニウムシート１０の各側縁部同士が重な
った円管状に形成される。An outer mold 51 is located in the middle of the resin flow section 42 of the inner mold 40.
is installed. The outer mold 51 has a cylindrical space formed therein, and a cylindrical liner (not shown) is fitted into the space. Then, the aluminum sheet 10 is inserted into the space formed by the liner. The aluminum sheet 10 is formed into a cylindrical shape with the side edges of the aluminum sheet 10 overlapping each other by slidingly contacting the inner circumferential surface of the liner as it passes through the cylindrical space of the liner.
外型５１のアルミニウムシート１０搬送方向下流側には
、超音波溶接機のホーン５２か配設されており、該ホー
ン５２により、円管状に成形されたアルミニウムシート
１０の相互型なった各側縁部が超音波溶接される。A horn 52 of an ultrasonic welding machine is disposed on the downstream side of the outer mold 51 in the conveying direction of the aluminum sheet 10, and the horn 52 allows each side edge of the aluminum sheet 10 formed into a circular tube shape to be mutually molded. The parts are ultrasonically welded.
内型４０における樹脂通流管４２の先端部からは、溶融
樹脂が放射状に押し出され、超音波溶接機のホーン５２
によりアルミニウムシー！・１０の各側縁部が溶接され
て製造されたアルミニウム管の内周面が、その樹脂にて
被覆される。The molten resin is extruded radially from the tip of the resin flow pipe 42 in the inner mold 40, and the molten resin is extruded into the horn 52 of the ultrasonic welding machine.
Aluminum Sea! - The inner peripheral surface of the aluminum tube manufactured by welding each side edge of 10 is coated with the resin.
−８〜
該超音波溶接機のホーン５２の下流側には、整形機２０
が配設されている。該整形機２０は、第１図に示すよう
に、アルミニウムシート１０の進行方向に直交状態で上
側および下側に配設された一対の鼓型ローラ２１および
２１を有する。各鼓型ローラ２１は、外周面に、製造さ
れたアルミニウム管の外周面におけるほぼ半周に転接す
るように軸方向に半円状に窪んだ湾曲面２１ａを有して
いる。相互に対向する各鼓ローラ２１の湾曲面２１ａそ
れぞれにより円環状の空間が形成されており、その空間
の直径は、製造すべき複合管の外径に等しくなっている
。各鼓型ローラ２１の各端部外周面は、軸心方向に外径
が一定の直円筒部２１ｂになっている。そして、一対の
鼓型ローラ２１および２１は、フレーム２２にそれぞれ
回転可能に取り付けられている。-8~ On the downstream side of the horn 52 of the ultrasonic welding machine, a shaping machine 20 is provided.
is installed. As shown in FIG. 1, the shaping machine 20 has a pair of drum-shaped rollers 21 and 21 disposed on the upper and lower sides perpendicular to the traveling direction of the aluminum sheet 10. Each drum-shaped roller 21 has a curved surface 21a recessed semicircularly in the axial direction on its outer peripheral surface so as to be in rolling contact with approximately half the circumference of the outer peripheral surface of the manufactured aluminum tube. An annular space is formed by the curved surfaces 21a of the drum rollers 21 facing each other, and the diameter of the space is equal to the outer diameter of the composite tube to be manufactured. The outer peripheral surface of each end of each drum-shaped roller 21 is a right cylindrical portion 21b having a constant outer diameter in the axial direction. The pair of drum-shaped rollers 21 and 21 are each rotatably attached to the frame 22.
該フレーム２２は、外型５１から搬送される円管状のア
ルミニウムシート１０が鼓型ロール２１および２１間を
通過する際に、該アルミニウムシート１０の搬送に追従
して移動しないように支持体２３（第２図参照）に支持
されている。各鼓型ローラ２１の材質としでは、金属ま
たは硬質の合成樹脂等が用いられる。The frame 22 is provided with a support 23 ( (see Figure 2). The material for each drum-shaped roller 21 is metal, hard synthetic resin, or the like.
該円管整形機２０の下流側には、第２図に示すように、
引取機６０および６０が配設されており、両引取機６０
により、整形機２０を通過して製造された複合管が搬送
される。On the downstream side of the circular tube shaping machine 20, as shown in FIG.
Pick-up machines 60 and 60 are arranged, and both pick-up machines 60
The composite pipe manufactured by passing through the shaping machine 20 is conveyed.
このような構成の複合管製造装置では、複合管が次のよ
うにして製造される。In the composite pipe manufacturing apparatus having such a configuration, a composite pipe is manufactured in the following manner.
内型４０における樹脂通流管４２の外周面と、外型５１
内ノライナ一内周面との間に、アルミニウムシートｌＯ
が、断面Ｕ字状から円形状へと順次変形された状態で進
入する。該アルミニウムシート１０は、ライナー内の円
筒状空間を通過する際に、その内周面に摺接して、該内
周面により強制的に湾曲され、各側縁部が重なり合った
断面が真円の円管状に成形される。The outer peripheral surface of the resin flow pipe 42 in the inner mold 40 and the outer mold 51
An aluminum sheet lO is placed between the inner liner and the inner peripheral surface.
enters in a state in which the cross section is sequentially deformed from a U-shaped to a circular shape. When the aluminum sheet 10 passes through the cylindrical space inside the liner, it comes into sliding contact with the inner circumferential surface and is forcibly curved by the inner circumferential surface, so that the cross section where each side edge overlaps is a perfect circle. It is formed into a circular tube shape.
外型５１を通過した円管状のアルミニウムシートｌＯは
、相互に重ね合わされた各側縁部の外周側部分が超音波
溶接機におけるホーン５２に転接されて、各側縁部同士
が溶接される。これにより、円管状−１０〜
のアルミニウム管が製造される。After passing through the outer mold 51, the outer circumferential portions of the side edges of the cylindrical aluminum sheet lO that have passed through the outer mold 51 are rolled into contact with a horn 52 of an ultrasonic welding machine, and the side edges are welded together. . As a result, an aluminum tube having a circular tubular shape of -10~ is manufactured.
このとき、製造されたアルミニウム管内に先端部が位置
する樹脂通流管４２の先端部からは、溶融樹脂が押し出
され、該溶融樹脂によりアルミニウム管内周面がライニ
ングされる。At this time, molten resin is extruded from the tip of the resin flow tube 42 whose tip is located inside the manufactured aluminum tube, and the inner circumferential surface of the aluminum tube is lined with the molten resin.
外型５１におけるライナーは、通常、合成樹脂により構
成されており、アルミニウムシート１ｏが摺接すること
により摩耗する。このため、ライナーが摩耗した状態で
アルミニウムシート１ｏが円Ｅｔ状に整形されると、形
成される円管状アルミニウムシートの外径が大きくなる
。外径が大きい状態で円管状に成形されたアルミニウム
シート１ｏは、重ね合わされた各側縁部同士が超音波溶
接機のホーン５２により溶接されるので、外径の大きい
アルミニウム管が形成される。The liner in the outer mold 51 is usually made of synthetic resin, and is worn out by sliding contact with the aluminum sheet 1o. For this reason, when the aluminum sheet 1o is shaped into a circle Et with the liner worn, the outer diameter of the formed tubular aluminum sheet increases. The aluminum sheet 1o, which is formed into a circular tube shape with a large outer diameter, is welded to each other by the horn 52 of an ultrasonic welding machine at the overlapped side edges, so that an aluminum tube with a large outer diameter is formed.
外型５１から搬送されて、重ね合わされた各側縁部同士
が溶接されたアルミニウム管は、整形機２゜における鼓
型ローラ２１および２１の湾曲面２１ａおよび２ｉａ間
を通過する。該湾曲面２１ａおよび２１ａは、製造すべ
き円管の外周面にほぼ全周にわたって転接するようにな
っている。そのため、外径が大きくなったアルミニウム
管が該鼓型ローラ２１および２１間を通過するときには
、該アルミニウム管１２の外周面が、製造すべきアルミ
ニウム管の外径に等しくなるように縮径される。従って
、外型５１により所定の外径よりも大きい外径のアルミ
ニウム管１２が製造された場合にも、最終的には、その
外径が製造すべきアルミニウム管の外径に縮径される。The aluminum tubes conveyed from the outer die 51 and overlaid with their respective side edges welded pass between the curved surfaces 21a and 2ia of the drum-shaped rollers 21 and 21 in the shaping machine 2°. The curved surfaces 21a and 21a are in rolling contact with the outer peripheral surface of the circular tube to be manufactured over almost the entire circumference. Therefore, when an aluminum tube with a larger outer diameter passes between the drum-shaped rollers 21 and 21, the outer peripheral surface of the aluminum tube 12 is reduced in diameter to be equal to the outer diameter of the aluminum tube to be manufactured. . Therefore, even if an aluminum tube 12 having an outer diameter larger than a predetermined outer diameter is manufactured using the outer mold 51, the outer diameter is ultimately reduced to the outer diameter of the aluminum tube to be manufactured.
また、重ね合わされた各側縁部同士を溶接されたアルミ
ニウム管１２は、その溶接部の外周面が盛り上がってい
るが、該アルミニウム管１２が鼓型ローラ２１および２
１の湾曲面２１ａおよび２１ａ開を通過することにより
、その盛り上がりも除去され、さらには、他の原因でア
ルミニウム管１２の外周面に生じた凹凸も解消される。Further, the aluminum tube 12 whose side edges are welded together has a raised outer circumferential surface at the welded portion.
By passing through the curved surfaces 21a and 21a opening of 1, the bulges are also removed, and furthermore, the unevenness that has occurred on the outer circumferential surface of the aluminum tube 12 due to other causes is also eliminated.
また、鼓型ローラ２１および２１は、アルミニウム管１
２の通過に際して、該アルミニウム管１２の外周面に転
接するために、アルミニウム管１２の外周面を傷付ける
おそれがない。しかも、鼓型ローラ２１および２１の外
周面の摩耗も少なく、アルミニウム管１２を安定的に整
形するこ七ができる。Moreover, the drum-shaped rollers 21 and 21 are connected to the aluminum pipe 1
2 comes into rolling contact with the outer circumferential surface of the aluminum tube 12, so there is no risk of damaging the outer circumferential surface of the aluminum tube 12. Moreover, there is less wear on the outer circumferential surfaces of the drum-shaped rollers 21 and 21, and the aluminum tube 12 can be shaped stably.
（発明の効果）
本発明の複合管用金属管の製造装置は、このように、外
型にて外径の大きい円管状に金属シートが成形された場
合にも、複数の鼓型ローラを有する整形機により所定の
外径に縮径される。従って、円管状に整形された金属シ
ートの各側縁部の溶接によりその溶接部が盛り上がった
状態であっても、その盛り上がりが解消され、また、外
周面の凹凸も解消されて所定の外径の金属管が安定的に
製造される。(Effects of the Invention) The apparatus for manufacturing a metal tube for a composite pipe of the present invention can be used even when a metal sheet is formed into a cylindrical shape with a large outer diameter using the outer die, the forming apparatus has a plurality of drum-shaped rollers. The machine reduces the diameter to a predetermined outer diameter. Therefore, even if the welded parts are raised due to welding of each side edge of a metal sheet shaped into a circular tube, the raised parts are eliminated, and the unevenness of the outer circumferential surface is also eliminated to achieve a predetermined outer diameter. metal tubes are stably manufactured.
４、 の。 な説Ｈ
第１図は本発明の円管製造装置の一実施例を主要部につ
いて示す正面図、第２図はその全体を概略的に示す側面
図、第３図は従来の複合管用金属管の製造装置を概略的
に示す構成図である。4. of. Theory H Fig. 1 is a front view showing the main parts of an embodiment of the circular pipe manufacturing apparatus of the present invention, Fig. 2 is a side view schematically showing the whole, and Fig. 3 is a conventional metal pipe for composite pipes. 1 is a configuration diagram schematically showing a manufacturing apparatus.
１０・・・アルミニウムシート、１２・・・アルミニウ
ム管、２０・・・整形機、２１・・・鼓型ローラ、４ｏ
・・・内型、５１・・・外型、５２・・・ホーン。DESCRIPTION OF SYMBOLS 10... Aluminum sheet, 12... Aluminum pipe, 20... Shaping machine, 21... Drum-shaped roller, 4o
...Inner mold, 51...Outer mold, 52...Horn.
以上 第 １ 図that's all Figure 1
Claims (1)
た複合管を製造する際に、内周面が合成樹脂層にて被覆
されるように、帯状の金属シートの各側縁部を重ねて円
管状に成形し、その各側縁部同士を溶接して金属管を製
造する複合管用金属管の製造装置であって、 内部に円筒状の空間が形成されており、その空間に帯状
の金属シートを通過させる際に内周面に該金属シートを
摺接させて、該金属シートの各側縁部同士を重ね合せた
円管状に成形する外型と、該外型により重ね合わされた
金属シートの各側縁部同士を溶接する溶接機と、 該溶接機の金属シート搬送方向下流側に配設されており
、製造すべき金属管の外径にほぼ等しい外径の環状の空
間が形成されるように、軸方向に沿って円弧状に窪んだ
湾曲面をそれぞれ有した複数の鼓型ローラを有する整形
機と、 を具備する複合管用金属管の製造装置。[Claims] 1. When manufacturing a composite tube in which at least the inner peripheral surface of a metal tube is coated with a synthetic resin layer, a band-shaped metal sheet is used so that the inner peripheral surface is coated with the synthetic resin layer. A manufacturing device for a metal tube for a composite pipe, which manufactures a metal tube by overlapping each side edge of the metal tube and welding the side edges together to form a circular tube, the metal tube having a cylindrical space formed inside. and an outer mold formed into a cylindrical shape by overlapping each side edge of the metal sheet by sliding the metal sheet against the inner circumferential surface when the band-shaped metal sheet is passed through the space; A welding machine that welds the side edges of the metal sheets overlapped by the outer mold, and a welding machine that is disposed downstream of the welding machine in the metal sheet conveying direction, and that welds an outer diameter that is approximately equal to the outer diameter of the metal tube to be manufactured. A manufacturing device for a metal tube for a composite tube, comprising: a shaping machine having a plurality of drum-shaped rollers each having a curved surface concave in an arc shape along the axial direction so as to form an annular space with a diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2338382A JP2862371B2 (en) | 1990-11-30 | 1990-11-30 | Equipment for manufacturing metal pipes for composite pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2338382A JP2862371B2 (en) | 1990-11-30 | 1990-11-30 | Equipment for manufacturing metal pipes for composite pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04200920A true JPH04200920A (en) | 1992-07-21 |
| JP2862371B2 JP2862371B2 (en) | 1999-03-03 |
Family
ID=18317630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2338382A Expired - Fee Related JP2862371B2 (en) | 1990-11-30 | 1990-11-30 | Equipment for manufacturing metal pipes for composite pipes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2862371B2 (en) |
-
1990
- 1990-11-30 JP JP2338382A patent/JP2862371B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2862371B2 (en) | 1999-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6092556A (en) | Multi-wall tube | |
| US4501948A (en) | Method and apparatus for forming spiral tubing | |
| JPH04200920A (en) | Device for manufacturing metallic tube for composite tube | |
| KR100356560B1 (en) | A roll forming apparatus of composite pipe | |
| JPH03169427A (en) | Molding of heat exchange tube and molding device | |
| JPH04200921A (en) | Manufacturing device for complex metallic tube | |
| JPH0419121A (en) | Manufacture of laminated spiral pipe | |
| CN208772187U (en) | A kind of manufacturing equipment of Covered with Angles inner liner stainless steel pipe | |
| JP2952187B2 (en) | ERW pipe inspection apparatus, ERW pipe manufacturing apparatus and manufacturing method | |
| KR101213084B1 (en) | Duplex pipe manufacturing apparatus by using rolling | |
| JPS62141458A (en) | Curved joint tube for duct | |
| JPS59113921A (en) | Double square tube and its manufacturing device | |
| JPH01237114A (en) | Manufacture of metal composite tube | |
| JPH10225717A (en) | Manufacture and manufacturing device for thin-walled tube | |
| JPH09215966A (en) | Lengthy article cleaning apparatus | |
| JPS62199223A (en) | Circular pipe forming machine | |
| CN108787786A (en) | A kind of manufacturing equipment of Covered with Angles inner liner stainless steel pipe | |
| JPH04201561A (en) | Liner for molding round pipe | |
| JPH03121828A (en) | Manufacture of synthetic resin tube and its manufacturing device | |
| JPH05254055A (en) | Production of metal composite pipe | |
| US3113542A (en) | Method of producing container bodies | |
| JPH07156240A (en) | Manufacture composite tube | |
| JPH09141331A (en) | Marking device for metal tube and electric resistance welded tube making apparatus | |
| JPS6044126A (en) | Manufacture of welded tube | |
| JP2009160614A (en) | Apparatus for manufacturing spiral pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |