JP3358218B2 - Corrugated pipe manufacturing equipment - Google Patents
Corrugated pipe manufacturing equipmentInfo
- Publication number
- JP3358218B2 JP3358218B2 JP32872492A JP32872492A JP3358218B2 JP 3358218 B2 JP3358218 B2 JP 3358218B2 JP 32872492 A JP32872492 A JP 32872492A JP 32872492 A JP32872492 A JP 32872492A JP 3358218 B2 JP3358218 B2 JP 3358218B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- corrugated pipe
- ring
- corrugated
- wave
- 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
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、管壁面を断面波形に成
形して十分な偏平強度を備えた合成樹脂製のコルゲート
管の製造装置に係り、特に成形安定性の高いコルゲート
管の製造装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a corrugated pipe made of synthetic resin having a sufficient flat strength by forming a pipe wall surface into a corrugated cross section, and particularly to an apparatus for manufacturing a corrugated pipe having high molding stability. About.
【０００２】[0002]
【従来の技術】従来、この種のコルゲート管の製造装置
としては、例えば図２及び図３に示すように、相対向す
る支持フレーム２と支持板４の間の仮想円周に沿って複
数個回動自在に配設されて実質的に一つの回転軸体を形
成するローラ３ａ、３ｂ、…、３ｉと、前記ローラ３
ａ、３ｂ、…、３ｉの周面に複数個配設され全体で螺旋
形状をなす断面凸条の波リング１２、１２、…などを有
するコルゲート管の製造装置が知られている（特公昭６
２−６０２６１号公報参照）。2. Description of the Related Art Conventionally, as a corrugated pipe manufacturing apparatus of this type, for example, as shown in FIGS. 2 and 3, a plurality of corrugated pipes are formed along a virtual circumference between opposing support frames 2 and support plates 4. Rollers 3a, 3b,..., 3i that are rotatably disposed to form substantially one rotating shaft body;
A corrugated pipe manufacturing apparatus is known which has a plurality of corrugated rings 12, 12,... arranged on the peripheral surface of a, 3 b,.
2-60261).
【０００３】これら装置によって行われるコルゲート管
の製造は、合成樹脂帯状体Ａを押出機２４から押し出
し、該帯状体Ａをモータ１６の駆動により回動する前記
回転軸体と各々のローラ３によって該回転軸体外周に螺
旋状に進行させると共に捲回し、先に押し出された一周
前の帯状体と重なり融着されることによって行われる。
又、管の周面には波リング１２の凸状とローラ外周によ
り凹凸が形成される。[0003] In manufacturing a corrugated pipe performed by these devices, a synthetic resin strip A is extruded from an extruder 24, and the strip A is rotated by the rotating shaft and the respective rollers 3 driven by a motor 16. This is performed by spirally advancing and winding around the outer periphery of the rotating shaft body, and overlapping and fusing with the previously extruded belt-like body one round before.
Further, irregularities are formed on the peripheral surface of the tube by the convex shape of the wave ring 12 and the outer periphery of the roller.
【０００４】なお、図中、符号１は装置の基台、５は支
持フレーム２と支持板４の間に配設されつつ支持板４を
支持する基軸、６及び７はローラ３の軸両端に配設され
支持フレーム２と支持板４にそれぞれ貫通して該ローラ
３を回動自在にする軸部、１６はローラ３の駆動源たる
モータ、１７は減速装置、１８及び２１はスプロケッ
ト、１９及び２２はチェーン、２０は軸、そして２３は
張力装置である。In the drawing, reference numeral 1 denotes a base of the apparatus, 5 denotes a base shaft which is disposed between the support frame 2 and the support plate 4 and supports the support plate 4, and 6 and 7 are provided at both ends of the shaft of the roller 3. Shafts which are arranged and penetrate through the support frame 2 and the support plate 4 to make the roller 3 rotatable, 16 is a motor as a driving source of the roller 3, 17 is a reduction gear, 18 and 21 are sprockets, 19 and 22 is a chain, 20 is a shaft, and 23 is a tension device.
【０００５】ここで、前記ローラ３はチェーン２２によ
り均一な速度で回動させられているため、帯状体Ａは均
一な速度で前記回転軸体に捲回される。Since the roller 3 is rotated at a uniform speed by the chain 22, the belt A is wound around the rotating shaft at a uniform speed.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、各ロー
ラ単体での周速を見てみると、ローラの周速は直径の相
違から波リングの頂点の周速に対し５５〜９０％の速度
であり、そのため、成形されたコルゲート管の山部（波
リング圧接部分）と谷部（ローラ圧接部分）の間に縦ジ
ワ（内部的には歪み）が生じてしまうという課題を生じ
させていた。また、この縦ジワのあるコルゲート管には
耐衝撃性、耐圧性等の耐久性が低いという課題があっ
た。However, looking at the peripheral speed of each roller alone, the peripheral speed of the roller is 55 to 90% of the peripheral speed at the top of the wave ring due to the difference in diameter. Therefore, there has been a problem that a vertical wrinkle (internal distortion) is generated between a peak (wave ring pressure contact portion) and a valley (roller pressure contact portion) of the formed corrugated pipe. In addition, there is a problem that the corrugated pipe having the vertical wrinkles has low durability such as impact resistance and pressure resistance.
【０００７】したがって、本発明の目的は上記従来の製
造装置における課題を解決すべく発明されたものであっ
て、耐衝撃性、耐圧性等といった耐久性が高いと共に製
造されたコルゲート管の山部と谷部の間に縦ジワ（内部
的には歪み）が生じないコルゲート管の製造装置を提供
することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems in the conventional manufacturing apparatus, and has a high durability such as impact resistance and pressure resistance, and a crest of a corrugated pipe manufactured. An object of the present invention is to provide a corrugated pipe manufacturing apparatus in which vertical wrinkles (internal distortion) do not occur between the corrugated pipe and the valley.
【０００８】[0008]
【課題を解決する手段】本発明は上記に鑑み発明された
ものであって、相対向する支持フレームと支持板の間の
仮想円周に沿って複数個回動自在に配設されて実質的に
一つの回転軸体を形成するローラと、前記ローラの周面
に複数個配設され全体で螺旋形状をなす断面凸条の波リ
ングと、前記支持フレーム近傍に配設され溶融した合成
樹脂帯状体を押し出す押出機を有するコルゲート管の製
造装置において、前記波リング同士間のローラの外周に
従動な胴リングを配設したことを特徴とするコルゲート
管の製造装置である。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above, and is provided with a plurality of members rotatably disposed along an imaginary circumference between opposing support frames and support plates. A roller forming two rotating shafts, a plurality of wavy rings provided on the peripheral surface of the roller and having a helical cross-section, and a molten synthetic resin strip provided near the support frame. An apparatus for manufacturing a corrugated pipe having an extruder for extruding, wherein a body ring driven by an outer periphery of a roller between the wave rings is provided.
【０００９】本発明において、前記胴リングとは、前記
ローラの外周にベアリングを介して従動且つ回動自在に
配設されるものであり、前記波リング間のローラを覆う
ものである。ここで、前記帯状体は波リングと胴リング
に接触しつつ進行する。しかしながら、胴リングが従動
であるため、該帯状体は波リングの周速に従って進行す
る。したがって、胴リングの採用により、該帯状体は、
波リングの頂点の周速に対し５５〜９０％の速度である
ローラの周速の影響を受けない。In the present invention, the body ring is disposed so as to be driven and rotatable around the outer periphery of the roller via a bearing, and covers the roller between the wave rings. Here, the strip advances while contacting the wave ring and the body ring. However, since the trunk ring is driven, the strip advances according to the peripheral speed of the wave ring. Therefore, by adopting the trunk ring,
It is not affected by the peripheral speed of the roller, which is 55 to 90% of the peripheral speed at the top of the wave ring.
【００１０】また、本発明にあっては、該仮想円筒の外
部から形状を固定させる押えロールを構成を追加した装
置、さらには二層のコルゲート管を製造するためにコル
ゲート管の内部に平滑な合成樹脂管の形成装置を構成し
た装置に対しても適用できるのは勿論である。According to the present invention, there is provided an apparatus in which a presser roll for fixing the shape from outside the virtual cylinder is added, and further, a smooth roll is provided inside the corrugated pipe in order to manufacture a two-layer corrugated pipe. It is needless to say that the present invention can be applied to an apparatus constituting a synthetic resin pipe forming apparatus.
【００１１】[0011]
【作用】本発明は、仮想円周に沿って配設されたローラ
の周面に複数個配設され全体で螺旋形状をなす断面凸条
の波リングに対し、溶融した合成樹脂帯状体を押し出し
捲回してコルゲート管を製造するコルゲート管の製造装
置において、前記波リング同士間のローラの外周に従動
な胴リングを配設し、これにより略均一な速度で前記帯
状体を進行させる。According to the present invention, a molten synthetic resin strip is extruded against a corrugated ring having a plurality of helical cross-sections which are arranged on a peripheral surface of a roller arranged along a virtual circumference. In a corrugated pipe manufacturing apparatus for manufacturing a corrugated pipe by winding, a trunk ring driven by an outer periphery of a roller between the corrugated rings is disposed, and thereby the strip is advanced at a substantially uniform speed.
【００１２】[0012]
【実施例】以下、本発明を図面に示す実施例に基づいて
詳細に説明する。図１は本発明に係るコルゲート管の製
造装置の一実施例の特徴部分であるローラ、波リング及
び胴リングを抜き出しで模式的に示した縦断面図であ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 is a longitudinal sectional view schematically showing a roller, a wave ring, and a body ring, which are characteristic parts of one embodiment of a corrugated pipe manufacturing apparatus according to the present invention.
【００１３】本実施例の特徴であるローラ３は管状のシ
ャフトであり、一つおきに胴リング８と波リング１２が
前記ローラ３の外周に配設されている。ここで、胴リン
グ８はローラ３との間に管状のドライベアリング９と位
置決め具１０を介して回動自在に配設され、波リング１
２は固定具１１を介して固定されている。なお、前記ロ
ーラ３の中空部３１は、図示外の冷却水供給機から供給
される冷却水を通して成形されるコルゲート管を冷却固
化させるために設けられている。The roller 3 which is a feature of the present embodiment is a tubular shaft, and a body ring 8 and a wave ring 12 are arranged on the outer periphery of the roller 3 every other. Here, the body ring 8 is rotatably disposed between the roller 3 via a tubular dry bearing 9 and a positioning tool 10.
2 is fixed via a fixture 11. The hollow portion 31 of the roller 3 is provided for cooling and solidifying a corrugated pipe formed through cooling water supplied from a cooling water supply device (not shown).
【００１４】ここで、図１の構成が上述の従来の装置に
適用された際の作用を、胴リング８の図示を省略したと
想定した図２及び図３に基づいて説明する。Here, the operation when the configuration of FIG. 1 is applied to the above-described conventional apparatus will be described with reference to FIGS. 2 and 3 where it is assumed that the illustration of the body ring 8 is omitted.
【００１５】押出機２４から押し出された溶融した合成
樹脂帯状体Ａは、ガイドラーラ２６を介して波リング１
２の外周に供給され、これと同時に帯状体Ａ供給速度に
併せて前記ローラ３ａ、３ｂ、…、３ｉがモータ１６に
より回動される。以上の２つの作用により該帯状体Ａの
先端が波リング１２及び胴リング８の外周上を螺旋状に
進行する。帯状体Ａはさらに進行するとローラ全体を螺
旋状に進行することとなり、一周捲かれると後から押し
出されてくる帯状体Ａが一周前の帯状体Ａと部分的に均
一に重なりあい、該帯状体Ａは全体で管状に形成され
る。一方、該管状に形成された帯状体Ａは、外部から上
記押圧ローラ２５の押圧により外周の凹凸形状も整えら
れ、上記中空部３１内を通過する冷却水や雰囲気温度に
より冷却固化される。The molten synthetic resin strip A extruded from the extruder 24 is passed through a guide roller 26 to form a wave ring 1.
The rollers 3a, 3b,..., 3i are rotated by the motor 16 at the same time as the supply speed of the strip A. By the above two actions, the tip of the band-shaped body A spirally moves on the outer circumference of the wave ring 12 and the body ring 8. When the belt-shaped body A further advances, the entire roller advances spirally. When the belt-shaped body A is wound one round, the belt-shaped body A extruded later partially overlaps with the belt-shaped body A one round before, and the belt-shaped body A A is formed in a tubular shape as a whole. On the other hand, the belt-like body A formed in a tubular shape has its outer peripheral unevenness adjusted by the pressing of the pressing roller 25 from the outside, and is cooled and solidified by cooling water passing through the hollow portion 31 or an ambient temperature.
【００１６】以上の作用中における帯状体Ａの進行は、
図３に示すようにモータ１６の駆動を減速装置１７、チ
ェーン１９、２２を介してローラ３ａ、３ｂ、…、３ｉ
自身の回転と該ローラ３ａ、３ｂ、…、３ｉの集合体か
らなる回転軸体の回転により進行する。しかしながら、
直接接触しているのは波リング１２と胴リング８であ
り、胴リング８が従動なローラであることから、帯状体
Ａは波リング１２の周速で進行する。The progress of the band A during the above operation is as follows.
As shown in FIG. 3, the driving of the motor 16 is controlled by the rollers 3a, 3b,.
The rotation proceeds by the rotation of itself and the rotation of a rotating shaft composed of an assembly of the rollers 3a, 3b,. However,
The wave ring 12 and the body ring 8 are in direct contact with each other. Since the body ring 8 is a driven roller, the belt-shaped body A advances at the peripheral speed of the wave ring 12.
【００１７】本実施例にあっては、波リングと胴リング
でローラ表面を覆うと共に胴リングを従動にしているた
め、この外周を進行する合成樹脂帯状体の進行速度ムラ
を生じさせないという効果を有すると共に、波リングの
ピッチを胴リングの選択により容易に調節できるという
効果を有する。In this embodiment, since the roller surface is covered with the wave ring and the body ring and the body ring is driven, there is an effect that the traveling speed of the synthetic resin strip traveling on the outer periphery is not generated. And the pitch of the wave ring can be easily adjusted by selecting the body ring.
【００１８】[0018]
【発明の効果】本発明は、実質的に一つの回転軸体を形
成するように仮想円周に沿って配設した複数のローラの
両軸端を上記支持フレームと支持板に回動自在に軸承せ
しめ、前記ローラの周面に複数個配設され全体で螺旋形
状をなす断面凸条の波リングと、前記支持フレーム近傍
に配設され溶融した合成樹脂帯状体を押し出す押出機を
有するコルゲート管の製造装置において、前記波リング
同士間のローラの外周に従動な胴リングを配設し、これ
により耐衝撃性、耐圧性等の耐久性が高いと共に製造さ
れたコルゲート管の山部と谷部の間に縦ジワ（内部的に
は歪み）が生じないという効果を有する。According to the present invention, both shaft ends of a plurality of rollers arranged along an imaginary circumference so as to form a substantially rotating shaft are rotatably mounted on the support frame and the support plate. A corrugated pipe having a shaft bearing, a plurality of corrugated rings arranged on the peripheral surface of the roller and having a helical cross section as a whole, and an extruder disposed near the support frame and extruding a molten synthetic resin strip. In the manufacturing apparatus, a body ring driven by the outer periphery of the roller between the wave rings is disposed, thereby having high durability such as impact resistance and pressure resistance, and the crests and valleys of the manufactured corrugated pipe. This has the effect that vertical wrinkles (internal distortion) do not occur between them.
【図１】本発明に係るコルゲート管の製造装置の一実施
例の特徴部分であるローラ、波リング及び胴リングを抜
き出しで模式的に示した縦断面図である。FIG. 1 is a longitudinal sectional view schematically showing a roller, a corrugated ring, and a body ring, which are characteristic parts of an embodiment of a corrugated pipe manufacturing apparatus according to the present invention, by extracting them.
【図２】本実施例及び従来のコルゲート管の製造装置を
模式的に示した平面図である。FIG. 2 is a plan view schematically showing the present embodiment and a conventional corrugated pipe manufacturing apparatus.
【図３】図２の製造装置の左側面図である。FIG. 3 is a left side view of the manufacturing apparatus of FIG. 2;
２ 支持フレーム ３ ローラ ４ 支持板 ９ 胴リング １２ 波リング ２４ 押出機 Ａ 合成樹脂帯状体 2 Support frame 3 Roller 4 Support plate 9 Body ring 12 Wave ring 24 Extruder A Synthetic resin strip
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 53/58 B29C 53/82 B29D 23/00 Continuation of the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29C 53/58 B29C 53/82 B29D 23/00
Claims (1)
（４）の間の仮想円周に沿って複数個回動自在に配設さ
れて実質的に一つの回転軸体を形成するローラ（３）
と、前記ローラ（３）の周面に複数個配設され全体で螺
旋形状をなす断面凸条の波リング（１２、１２、…）
と、前記支持フレーム（２）近傍に配設され溶融した合
成樹脂帯状体を押し出す押出機（２４）を有するコルゲ
ート管の製造装置において、前記波リング（１２）同士
間のローラ（３）の外周に従動な胴リング（９）を配設
したことを特徴とするコルゲート管の製造装置。A roller which is rotatably arranged along a virtual circumference between opposing support frames (2) and support plates (4) to substantially form one rotating shaft. (3)
And a plurality of wave rings (12, 12,...) Having a helical cross-section and arranged on the peripheral surface of the roller (3).
And a corrugated pipe manufacturing apparatus having an extruder (24) disposed near the support frame (2) and extruding a molten synthetic resin strip, wherein an outer periphery of a roller (3) between the corrugated rings (12) is provided. An apparatus for manufacturing a corrugated pipe, comprising a body ring (9) driven by a corrugated pipe.
Priority Applications (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32872492A JP3358218B2 (en) | 1992-11-13 | 1992-11-13 | Corrugated pipe manufacturing equipment |
| TW082109188A TW226003B (en) | 1992-11-13 | 1993-11-03 | |
| IL10749293A IL107492A (en) | 1992-11-13 | 1993-11-04 | Apparatus for producing a corrugated tube |
| US08/256,620 US5593535A (en) | 1992-11-13 | 1993-11-08 | Apparatus for producing corrugated tube |
| NZ272568A NZ272568A (en) | 1992-11-13 | 1993-11-08 | Producing tube of corrugated material by helically winding extruded plastic strip |
| CA002127810A CA2127810C (en) | 1992-11-13 | 1993-11-08 | Corrugated pipe manufacturing apparatus |
| ES93924191T ES2105341T3 (en) | 1992-11-13 | 1993-11-08 | APPARATUS TO MANUFACTURE CORRUGATED TUBES. |
| AU53770/94A AU660245B2 (en) | 1992-11-13 | 1993-11-08 | Corrugated pipe manufacturing apparatus |
| DE69312283T DE69312283T2 (en) | 1992-11-13 | 1993-11-08 | METHOD FOR PRODUCING CORRUGATED TUBES |
| EP93924191A EP0635353B1 (en) | 1992-11-13 | 1993-11-08 | Corrugated pipe manufacturing apparatus |
| NZ257388A NZ257388A (en) | 1992-11-13 | 1993-11-08 | Producing corrugated tube of synthetic resin material helically winding extruded plastic strip |
| PCT/JP1993/001616 WO1994011180A1 (en) | 1992-11-13 | 1993-11-08 | Corrugated pipe manufacturing apparatus |
| MYPI93002379A MY119484A (en) | 1992-11-13 | 1993-11-12 | Apparatus for producing corrugated tube |
| CN93114655A CN1043973C (en) | 1992-11-13 | 1993-11-13 | Apparatus for producing corrugated tube |
| KR94702337A KR0151245B1 (en) | 1992-11-13 | 1994-07-06 | Apparatus for producing corrugated tube |
| AU16283/95A AU673121B2 (en) | 1992-11-13 | 1995-04-05 | Apparatus for producing corrugated tube |
| US08/549,576 US5662764A (en) | 1992-11-13 | 1995-10-27 | Apparatus for producing corrugated tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32872492A JP3358218B2 (en) | 1992-11-13 | 1992-11-13 | Corrugated pipe manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06143404A JPH06143404A (en) | 1994-05-24 |
| JP3358218B2 true JP3358218B2 (en) | 2002-12-16 |
Family
ID=18213475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32872492A Expired - Lifetime JP3358218B2 (en) | 1992-11-13 | 1992-11-13 | Corrugated pipe manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3358218B2 (en) |
-
1992
- 1992-11-13 JP JP32872492A patent/JP3358218B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06143404A (en) | 1994-05-24 |
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